This disclosure provides systems and methods for electrical power conservation during braking for autonomous or assisted driving vehicles, such as when electrical currents are continuously supplied to the brake system when the vehicle is temporarily halted at a slope. Braking hysteresis is the relationship between the input (e.g., operating pressure, caused by an electrical motor to increase the fluid pressures in the brake system) and the output (e.g., braking pressure applied by the brake pads on the rotors), in which the change of the output is different during the increase of the input and during the decrease of the input. The present disclosure provides techniques for conserving electrical power consumption by using the brake hysteresis.
B60T 8/172 - Détermination des paramètres de commande utilisés pour la régulation, p.ex. par des calculs impliquant des paramètres mesurés ou détectés
B60T 13/74 - Transmission de l'action de freinage entre l'organe d'attaque et les organes terminaux d'action, avec puissance de freinage assistée ou relais de puissance; Systèmes de freins incorporant ces moyens de transmission, p.ex. systèmes de freinage à pression d'air avec entraînement ou assistance électrique
B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freins; Dispositifs de signalisation
2.
COOPERATIVE LEARNING OF LANGEVIN FLOW AND NORMALIZING FLOW TOWARD ENERGY-BASED MODEL
Embodiments of a generative framework comprise cooperative learning of two generative flow models, in which the two models are iteratively updated based on the jointly synthesized examples. In one or more embodiments, the first flow model is a normalizing flow that transforms an initial simple density into a target density by applying a sequence of invertible transformations, and the second flow model is a Langevin flow that runs finite steps of gradient-based MCMC toward an energy-based model. In learning iterations, synthesized examples are generated by using a normalizing flow initialization followed by a short-run Langevin flow revision toward the current energy-based model. Then, the synthesized examples may be treated as fair samples from the energy-based model and the model parameters are updated, while the normalizing flow directly learns from the synthesized examples by maximizing the tractable likelihood. Also provided are both theoretical and empirical justifications for the embodiments.
In one embodiment, a system determines selection parameters to apply an adaptive braking scheme for an autonomous driving vehicle (ADV). The system determines a brake mode based on the selection parameters using a driving scenario mapping table. In response to determining that a brake is to be applied, the system applies a brake for the ADV according to the brake mode. The brake can be applied in three stages, where the three stages include a brake pre-charge stage, an increasing rate of deceleration stage, and a constant rate of deceleration stage for the adaptive braking scheme.
B60T 7/22 - Organes d'attaque de la mise en action des freins par déclenchement non soumis à la volonté du conducteur ou du passager déclenchés par le contact du véhicule, p.ex. du pare-chocs, avec un obstacle extérieur, p.ex. un autre véhicule
B60W 10/18 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des systèmes de freinage
B60W 30/182 - Sélection entre plusieurs modes opératoires, p.ex. confort ou sportif
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
4.
BRAKING ACTIONS FOR FAILING CAN BUSES FOR AUTONOMOUS VEHICLES
In one embodiment, a system determines a signal fault at a communication bus of an autonomous driving vehicle (ADV). In response to determining the signal fault, the system sends a brake pre-charge command to a brake system of the ADV to pre-charge a brake of the ADV. The system determines a preset tolerance time to validate the signal fault. In response to a time elapse of the preset tolerance time, the system validates the signal fault at the communication bus or determine a signal fault at another communication bus. In response to validating the signal fault at the communication bus or determining the signal fault at the another communication bus, the system sends a brake command to the brake system of the ADV to engage brakes for the ADV.
B60T 8/88 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p.ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p.ex. accélération ou décélération comportant des moyens sensibles au fonctionnement défectueux, c. à d. des moyens pour détecter et indiquer un fonctionnement défectueux des moyens sensibles à la condition de vitesse
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
5.
ACTIVATION OF PRIMARY AND SECONDARY BRAKE SYSTEMS FOR AUTONOMOUS VEHICLES
In one embodiment, a system determines activation parameters for an autonomous driving vehicle (ADV), where the activation parameters include historical usages of a primary brake system or a secondary brake system. In response to determining that a brake is to be applied, the system determines whether to activate a primary or a secondary brake system based on the activation parameters. The system sends an activation flag to activate the primary or the secondary brake system based on the determining whether to activate the primary or the secondary brake system. The system sends a brake command to the primary and the secondary brake system to activate either the primary or the secondary brake system according to the activation flag.
B60T 7/12 - Organes d'attaque de la mise en action des freins par déclenchement non soumis à la volonté du conducteur ou du passager
B60T 8/88 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p.ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p.ex. accélération ou décélération comportant des moyens sensibles au fonctionnement défectueux, c. à d. des moyens pour détecter et indiquer un fonctionnement défectueux des moyens sensibles à la condition de vitesse
B60T 8/92 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p.ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p.ex. accélération ou décélération comportant des moyens sensibles au fonctionnement défectueux, c. à d. des moyens pour détecter et indiquer un fonctionnement défectueux des moyens sensibles à la condition de vitesse à action corrective automatique
B60T 17/22 - Dispositifs pour surveiller ou vérifier les systèmes de freins; Dispositifs de signalisation
B60W 10/06 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des ensembles de propulsion comprenant la commande des moteurs à combustion
B60W 10/10 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des boîtes de vitesses
B60W 10/18 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des systèmes de freinage
B60W 10/20 - Commande conjuguée de sous-ensembles de véhicule, de fonction ou de type différents comprenant la commande des systèmes de direction
In one embodiment, a printed circuit board (PCB) includes a substrate, one or more signal layers including a first signal layer, a first segment of a transmission line disposed at the first signal layer electrically coupling a first location to a second location, and a first signal via disposed at the second location. The PCB circuit includes a second segment of the transmission line disposed at the first signal layer electrically coupling a third location to a fourth location and a second signal via disposed at the third location. The PCB includes a power-over-cable circuit disposed on a first surface of the substrate and electrically coupled to the first and second signal via, where the first and second segments carry a signal of an image sensor and the first segment carries power from the power-over-cable circuit to the image sensor, where the image sensor is used for an autonomous vehicle.
In one embodiment, a vehicle operating system (VOS) that can be partially ported to different types of microcontroller units (MCUs) includes at least one multiprocessor unit (MPU) with an operating system kernel running thereon, and at least one microcontroller unit (MCU) with multiple cores. Each core includes a set of unified application programming interfaces (APIs) for loading one or more MCU drivers corresponding to a type of the MCU, and one or more I/O drivers corresponding to a type of each of the one or more I/O devices associated with the MCU. The set of unified APIs includes at least one API for each service, and can vertically integrate a device path for the service from a hardware layer of the core to the service layer of the core. The VOS further includes multiple pairs of hardware-protected memories associated with each core to enable interprocess communication between the cores.
G07C 5/08 - Enregistrement ou indication de données de marche autres que le temps de circulation, de fonctionnement, d'arrêt ou d'attente, avec ou sans enregistrement des temps de circulation, de fonctionnement, d'arrêt ou d'attente
8.
AUTONOMOUS DRIVING VEHICLE AS DATA CENTER INFRASTRUCTURE
Embodiments are disclosed of a data center including a plurality of computers. A communication interface is communicatively coupled to the plurality of computers and adapted to communicate, wirelessly or by wire, between the plurality of computers, a user device, and at least one autonomous driving vehicle (ADV) computer. Instructions are stored in the plurality of computers that cause one or more of the plurality of computers to receive a user computing request from the user device. The computers determine whether there is an available ADV computer to execute the user computing request. If there is an available ADV computer to execute the user computing request, the computers reconfigure the available ADV computer from autonomous driving mode to computing mode, and transmit the user computing request for execution by the ADV computer. If no ADV computer is available to execute the computing request, then the request is executed by one or more of the plurality of computers.
A multiprocessor unit (MPU) in an autonomous driving vehicle (ADV) can provide hard real-time performance. In an embodiment, the MPU can include a hypervisor used to virtualize multiple cores of the MPU, which can further be partitioned into two sets of cores that are isolated from each other. The first set of cores are designated to run real-time related services as trusted applications directly on the hypervisor, and the real-time related services are given higher priority than kernel-level threads on the first set of cores. The second set of cores are designated to run a kernel of an operating system (e.g., Linux). Further, the kernel is patched using a hard real-time open source package to achieve hard real-time performance. An open source package can be used for interprocess communication (IPC) between different electronic control units (ECU) in the ADV.
G06F 9/48 - Lancement de programmes; Commutation de programmes, p.ex. par interruption
G06F 9/455 - Dispositions pour exécuter des programmes spécifiques Émulation; Interprétation; Simulation de logiciel, p.ex. virtualisation ou émulation des moteurs d’exécution d’applications ou de systèmes d’exploitation
G06F 9/50 - Allocation de ressources, p.ex. de l'unité centrale de traitement [UCT]
Embodiments are disclosed of a thermal enclosure for use in an autonomous driving vehicle (ADV). The thermal enclosure includes an enclosure having a top, a bottom, and an interior compartment having a floor and a ceiling. The thermal enclosure is adapted to be mounted in the ADV. An electronic component is positioned in the interior compartment and thermally coupled to the floor. A cold plate having a bottom surface, a top surface, an inlet, and an outlet, is positioned in the interior compartment with the bottom surface of the cold plate thermally coupled to the electronic component and with a gap between the top surface of the cold plate and the ceiling. The cold plate's inlet and the outlet are adapted to be fluidly coupled to a cooling system outside the thermal enclosure.
G05D 1/00 - Commande de la position, du cap, de l'altitude ou de l'attitude des véhicules terrestres, aquatiques, aériens ou spatiaux, p.ex. pilote automatique
11.
MANUFACTURE TEST SYSTEM FOR COMPUTATION HARDWARE USED IN DRIVERLESS VEHICLE
In an embodiment, a method verifies functionality of computation hardware on a device under test (DUT). The method loads a software test program onto the DUT, wherein the DUT includes computation hardware components. The method executes the software test program on the DUT to test the hardware components. During the testing, the software test program instructs one or more devices external to the DUT to provide one or more signals to one or more of the computation hardware components. The software test program generates a set of test results in response to testing the computation hardware components based on the one or more signals.
In one embodiment, a secondary component of a primary-secondary autonomous driving system includes a plurality of sensors configured to sense a surrounding environment of an autonomous driving vehicle (ADV). The secondary component includes a low power compute unit (LPCU) configured to: obtain sensor data from the plurality of sensors, synchronize and preprocess the sensor data to obtain processed sensor data, and detect obstacles using a machine learning pipeline for assistive driving operations. The secondary component includes a microcontroller configured to send control commands to a control system of the ADV, where the control commands are generated by the LPCU or by a high power compute unit (HPCU) of a primary component of the primary-secondary autonomous driving system.
In an embodiment, an autonomous driving vehicle (ADV) determines a LIDAR type, from of a plurality of LIDAR types, of a LIDAR unit. Responsive to determining the LIDAR type of the LIDAR unit, the ADV configures an adaptive LIDAR data processing system based on the LIDAR type. The adaptive LIDAR data processing system supports each one of the plurality of LIDAR types. In turn, responsive to configuring the adaptive LIDAR data processing system, the ADV establishes communication between the LIDAR unit and a host system using the adaptive LIDAR data processing system.
G01S 7/48 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G01S 17/931 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour prévenir les collisions de véhicules terrestres
14.
AUTOMATIC GENERATION OF CORNER SCENARIOS DATA FOR TUNING AUTONOMOUS VEHICLES
Embodiments of the invention are provided to automatically generate corner simulation scenarios. In an embodiment, an exemplary method includes performing the following operations for a predetermined number of iterations for each set of predefined parameters. The operations include generating a set of parameter values for the set of predefined parameters; determining whether the set of parameter values is valid or invalid based on a set of predefined metrics; and if the set of parameter values is valid, performing a simulation task to simulate a trajectory planner of the ADV in a simulation scenario configured by the set of parameter values. The method further includes calculating a performance score for the simulation task; and if the performance score of the simulation task is below a predetermined threshold, saving the set of parameter values in a storage, wherein the set of parameter values is used for re-tuning the trajectory planner.
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
B60W 40/06 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route
15.
ACCURATE BRAKE HOLDING PRESSURE ON A GRADIENT OF THE AUTONOMOUS DRIVING (AD) VEHICLE CONTROL SYSTEM
In an embodiment, an autonomous driving system (ADS) determines that a corresponding autonomous driving vehicle (ADV) has stopped on a gradient. The ADS determines a first brake hold pressure based on a first gradient value of the ADV measured at a first point in time. The ADS then applies the first brake hold pressure to a brake system in the ADV. Then, the ADS determines a second brake hold pressure based on a second gradient value of the ADV measured at a second point in time. The ADS then applies the second brake hold pressure to the brake system accordingly.
In one embodiment, a computer-implemented method performed by an autonomous driving vehicle (ADV) that utilizes a light detection and range (LiDAR) device that includes a light emitter and an optical sensor, the method emits, using the light emitter, an optical signal onto an object. The method receives, using the optical sensor, at least a portion of the optical signal reflected by the object. The method produces a digital signal based on the received portion of the optical signal and determines a position of the object based on the digital signal and the optical signal.
G01S 7/487 - Extraction des signaux d'écho désirés
G01S 17/10 - Systèmes déterminant les données relatives à la position d'une cible pour mesurer la distance uniquement utilisant la transmission d'ondes à modulation d'impulsion interrompues
G01S 17/931 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour prévenir les collisions de véhicules terrestres
G01S 7/4865 - Mesure du temps de retard, p.ex. mesure du temps de vol ou de l'heure d'arrivée ou détermination de la position exacte d'un pic
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
A printed circuit board includes first and second surfaces, first and second layers, and first and second vias. The first via extends from a first layer to the second surface and includes a first portion that is on a conductive path between the first layer and the second layer and a second portion that is not on the conductive path. A length of the first portion of the first via is greater than that of the second portion of the first via. The second via extends from the second surface to the second layer. The second via includes a first portion that is on the conductive path between the first layer and the second layer and a second portion that is not on the conductive path. A length of the first portion of the second via is greater than that of the second portion of the second via.
According to some embodiments, systems, methods and media for operating an autonomous driving vehicles (ADV) in an unforeseen scenario are disclosed. In one embodiment, an exemplary method includes determining that the ADV has entered an unforeseen scenario; and identifying one or more surrounding vehicles that are navigating the unforeseen scenario. The method further includes generating a trajectory by mimicking driving behaviors of one or more of the one or more surrounding vehicles; and operating the ADV to follow the trajectory to navigate the unforeseen scenario.
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
B60W 40/04 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés aux conditions de trafic
A system perceives an environment of an autonomous driving vehicle (ADV) based on a plurality of sensors and map data. The system determines an obstacle in the perceived environment to be a moving vehicle and the moving vehicle is to a left lane, to a right lane, or in front of the ADV. The system performs an inference on the obstacle using a neural network model to determine whether a behavior of the obstacle is anomalous. The system determines the obstacle is anomalous based on the performed inference.
Baidu.com Times Technology (Beijing) Co., Ltd. (Chine)
Inventeur(s)
Lyu, Jeong Ho
Li, Lingchang
Abrégé
A driving environment is perceived based on sensor data obtained from a plurality of sensors mounted on the ADV, including detecting a traffic light, where the plurality of sensors includes at least one image sensor. A first sensor setting is applied to the at least one image sensor to capture a first frame, and a second sensor setting is applied to the at least one image sensor to capture a second frame. A color of the traffic light is determined based on sensor data of the at least one image sensor in the first frame. The ADV is controlled to drive autonomously according to the color of the traffic light determined based on sensor data of the at least one image sensor in the first frame and a driving environment perceived based on sensor data of the at least one image sensor in the second frame.
G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p.ex. véhicules ou piétons; Reconnaissance des objets de la circulation, p.ex. signalisation routière, feux de signalisation ou routes
G06V 10/56 - Extraction de caractéristiques d’images ou de vidéos relative à la couleur
H04N 23/73 - Circuits de compensation de la variation de luminosité dans la scène en influençant le temps d'exposition
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
21.
SCENARIO-BASED TRAINING DATA WEIGHT TUNING FOR AUTONOMOUS DRIVING
According to various embodiments, the disclosure discloses systems, methods and media for formulating training datasets for learning-based components in an autonomous driving vehicle (ADV). In an embodiment, an exemplary method includes allocating training datasets for training a learning-based model in the ADV, each training dataset being allocated to one of multiple predefined driving scenarios; determining a weight of each training dataset out of the training datasets; and optimizing the weight of each training dataset in one or more iterations according to a predetermined algorithm until a performance of the learning-based model reaches a predetermined threshold. The predetermined algorithm is one of a random search algorithm, a grid search algorithm, or a Bayesian algorithm.
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p.ex. véhicules ou piétons; Reconnaissance des objets de la circulation, p.ex. signalisation routière, feux de signalisation ou routes
G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
A trajectory of an obstacle is predicted by a prediction module of the ADV. A trajectory of the ADV is determined based on the trajectory of the obstacle by a planning module of the ADV. A loss function of an analysis model of the prediction module is decomposed to multiple components with multiple weightings to generate a weighted loss function based on the trajectory of the ADV. A performance of the prediction module is evaluated based on the weighted loss function to improve the performance of the prediction module to increase a safety and comfort of the ADV.
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p.ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
23.
SYSTEMS AND METHODS FOR GATING-ENHANCED MULTI-TASK NEURAL NETWORKS WITH FEATURE INTERACTION LEARNING
Baidu.com Times Technology (Beijing) Co., Ltd. (Chine)
Inventeur(s)
Fei, Hongliang
Zhang, Jingyuan
Zhou, Xingxuan
Zhao, Junhao
Yin, Banghu
Li, Ping
Abrégé
Deep neural network (DNN) models have been widely used for user-relevance content prediction. Presented herein is a new user-relevance framework, embodiments of which may be referred as Gating-Enhanced Multi-task Neural Networks (GemNN). In one or more, neural network-based multi-task learning model embodiments herein predict user engagement with content in a coarse-to-fine manner, which gradually reduces content candidates and allows parameter sharing from upstream tasks to downstream tasks to improve the training efficiency. Also, in one or more embodiments, a gating mechanism was introduced between embedding layers and multi-layer perceptions to learn feature interactions and control the information flow fed to MLP layers. Tested embodiments demonstrated considerable improvements over prior approaches.
A plurality of trajectories of a plurality of obstacles are predicted, at an autonomous driving simulation platform, by a prediction module of an autonomous driving vehicle (ADV). A trajectory of the ADV is planned, at the autonomous driving simulation platform, by a planning module of the ADV based on the plurality of trajectories of the plurality of obstacles. A performance of the planning module is determined based on one or more evaluation metrics regarding the trajectory of the ADV. A performance of the prediction module is evaluated based on the performance of the planning module to improve the performance of the prediction module to deploy the prediction module to the ADV to drive autonomously.
The present disclosure provides methods and techniques for evaluating and improving algorithms for autonomous driving planning and control (PNC), using one or more metrics (e.g., similarity scores) computed based on expert demonstrations. For example, the one or more metrics allow for improving PNC based on human, as opposed to or in addition to optimizing certain oversimplified properties, such as the least distance or time, as an objective. When driving in certain scenarios, such as taking a turn, people may drive in a distributed probability pattern instead of in a uniform line (e.g., different speeds and different curvatures at the same corner). As such, there can be more than one “correct” control trajectory for an autonomous vehicle to perform in the same turn. Safety, comfort, speeds, and other criteria may lead to different preferences and judgment as to how well the controlled trajectory has been computed.
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
B60W 50/00 - COMMANDE CONJUGUÉE DE PLUSIEURS SOUS-ENSEMBLES D'UN VÉHICULE, DE FONCTION OU DE TYPE DIFFÉRENTS; SYSTÈMES DE COMMANDE SPÉCIALEMENT ADAPTÉS AUX VÉHICULES HYBRIDES; SYSTÈMES D'AIDE À LA CONDUITE DE VÉHICULES ROUTIERS, NON LIÉS À LA COMMANDE D'UN SOUS-ENSEMBLE PARTICULIER - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier
In an embodiment, a brake control system determines a brake pedal travel value and a brake actuation position based on a brake pedal travel sensor and a motor actuation sensor of an autonomous driving vehicle (ADV). The brake control system determines a first threshold value based on the brake actuation position. The brake control system determines a deviation of the observed brake pedal travel value from the brake actuation position or the raw brake pedal sensor value are above the first threshold value and detects an intention of an operator to apply a brake control in response to determining that the deviation is above the first threshold value. This way, brake intervention can be detected prior to steady state and detection of an operator intervention is robust and reliable.
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
B60W 50/10 - Interprétation des requêtes ou demandes du conducteur
B60T 8/32 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p.ex. par limitation ou variation de la force de freinage selon une condition de vitesse, p.ex. accélération ou décélération
27.
DYNAMIC SCENARIO PARAMETERS FOR AN AUTONOMOUS DRIVING VEHICLE
According to some embodiments, systems, methods and media for dynamically generating scenario parameters for an autonomous driving vehicles (ADV) are described. In one embodiment, when an ADV enters a driving scenario, the ADV can invoke a map-based scenario checker to determine the type of scenario, and invokes a corresponding neural network model to generate a set of parameters for the scenario based on real-time environmental conditions (e.g., traffics) and vehicle status information (e.g., speed). The set of scenario parameters can be a set of extra constraints for configuring the ADV to drive in a driving mode corresponding to the scenario.
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
G06V 20/56 - Contexte ou environnement de l’image à l’extérieur d’un véhicule à partir de capteurs embarqués
G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p.ex. véhicules ou piétons; Reconnaissance des objets de la circulation, p.ex. signalisation routière, feux de signalisation ou routes
28.
INFORMATION TECHNOLOGY (IT) ENCLOSURE FOR BATTERY BACKUP SYSTEMS
Embodiments are disclosed of a battery backup unit (BBU). The BBU includes an information technology (IT) enclosure adapted to hold a two-phase cooling fluid. A battery stack is adapted to be positioned within the IT enclosure and submerged in the two-phase cooling fluid. The battery stack has N battery cells, N≥2, and each battery cell has a top surface. The battery cells are stacked in ascending order, the first battery cell being the lowest battery cell in the battery stack and the Nth battery cell being the highest battery cell in the battery stack. An initial distance between a surface of the two-phase cooling fluid and the top surface of the Nth battery cell, and an inter-cell distance between the top surfaces of each pair of consecutive battery cells in the stack, are determined based on the storage capacity of the battery cells and the thermal properties of the two-phase cooling fluid.
Embodiments are disclosed of an immersion cooling device. The immersion cooling device includes a flow module adapted to be coupled to a heat-generating electronic component and immersed in an immersion cooling fluid. The flow module includes a housing with a channel therein, an inlet mounted the housing and fluidly coupled to the channel, the inlet being adapted to be submerged in the immersion cooling fluid, a pump positioned in the channel to accelerate the flow of immersion cooling fluid entering the channel through the inlet, and a fluid distribution interface mounted on the housing and fluidly coupled to the channel.
A cooling system for a server rack includes one or more separation containers including a first input that is fluidly connected to an external cooler to receive the fluid in the liquid form, a first output that is fluidly connected to the external cooler to provide the fluid to the external cooler in vapor form, a second one or more inputs that is fluidly connected to a respective output of a plurality of server chassis to receive the fluid in a mix of the liquid form and the vapor form, a second output that is fluidly connected to an input of an internal cooler to provide the fluid in the vapor form to the internal cooler, and a third output that is fluidly connected to the plurality of server chassis to provide the fluid in the liquid form to the plurality of server chassis.
A cooling apparatus includes a unit frame having one or more slots therein, a cooling liquid supply line, a cooling liquid return line, and one or more fluid distribution modules insertable into the one or more slots. A fluid distribution module includes a pair of blind mating connectors that are fluidly connected to the cooling liquid supply and return lines when the fluid distribution module is inserted into a slot. A condenser is disposed at a top portion of the fluid distribution module. A vapor manifold is fluidly coupled to a return port of the condenser and the vapor manifold includes a plurality of return connections. A fluid manifold is fluidly coupled to a supply port of the condenser and the fluid manifold includes the plurality of supply connections. The supply and return connections are fluidly coupled to a plurality of servers populated on an electronic rack.
Embodiments generate effective mutation directions for fuzzing by using an abstract interpretation engine that for each of a set of input variables determines whether, for an input value range, a source code comprises a potential bug. The abstract interpretation engine generates a list of potential bugs that is provided to a machine learning engine (e.g., a reinforcement learning engine) that, iteratively for each potential bug, generates a learned input value range that is narrower than the input value range. The learned input value range is provided to the abstract interpretation engine, which updates the input value range, and to a fuzzer, which limits a search space for generating a set of seeds that is used to identify bugs in the source code.
A cooling device for cooling a chip and a cooling system using the cooling device are disclosed. The cooling device includes a cooling layer, an internal channel, and a vapor layer. The cooling layer is divided into multiple cooling regions for cooling different regions of the chip. The internal connection is divided into multiple sections corresponding to the multiple cooling regions. Two-phase coolant entering the cooling layer is converted to mixed fluid, which is elevated to each internal section, where at least a portion of the vapor in the mixed fluid is extracted and the remaining mixed fluid is either distributed to the next cooling region or exit the cooling device. The cooling system includes at least one such cooling device, a fluid loop for recirculating liquid in the mixed fluid in the loop, and a vapor loop for recirculating vapor in the mixed fluid exiting the cooling device.
Embodiments are disclosed of a fluid injection apparatus. The fluid injection apparatus includes a supply manifold with a main inlet and a plurality of supply outlets. A manifold pump is fluidly coupled to the main inlet. One or more fluid injectors are adapted to be inserted among battery cells in a battery backup unit. Each fluid injector includes a hollow cylindrical tube having a first end, a second end, and a curved sidewall extending between the first end and the second end. The curved sidewall of each fluid injector includes a plurality of perforations, so that fluid can flow through the plurality of perforations from an interior channel of the fluid injector to an exterior of the fluid injector, and the first end of each fluid injector is fluidly coupled to a corresponding supply outlet.
A cooling device for cooling a chip, a server with such a cooling device, and a rack are disclosed. The cooling device comprises a cooling layer that is divided into multiple cooling regions; and an internal region that includes a vapor separation core. Two-phase coolant that enters a first cooling region of the cooling layer is converted to mixed fluid due to heat extracted from a corresponding region of the chip. The mixed fluid is elevated to the vapor separate core, which separates vapor from liquid in the mixed fluid. The vapor exits the cooling device while the liquid is transported to a second cooling region in the cooling layer. The cooling device can be used with a condenser in a server to form an internal server loop, and can be connected to a rack to form a main fluid loop. The two coolant recirculation loops are used together to maintain a predetermined liquid balance in the cooling device.
An electronic cooling system is disclosed. The system includes a plurality of cooling plates to extract heat from their respective heat sources. The system further includes one or more vapor separators for extracting vapor from the liquid, with each vapor separator to receive mixed phase liquid and separate the mixed phase liquid into vapor and cooling liquid. The system further includes a return unit to receive the vapors from the vapor separators through one or more vapor loops, and dissipate the received vapors to an external cooling loop. The cooling plates include a first cooling plate that receives liquid phase cooling liquid to extract heat from a first heat source and produces first mixed phase liquid. The cooling plates further include a second cooling plate that uses cooling liquid from a vapor separator to extract heat from a second heat source, produces second mixed phase liquid, and supplies the second mixed phase liquid to the return unit.
Systems and methods to provide a prefabricated module design for heterogeneous data centers are described. The heterogenous data centers includes multiple IT clusters designed with different power density scales which are designed with different types of thermal management systems, including two phase coolant immersion system and air cooling system. The data centers may include gas-to-gas heat exchange core for allowing vapor of a two-phase immersion cooling system to exchange heat with air of an air cooling system. In an embodiment, both of the IT clusters are designed with a dedicated containment structure and system for the vapor and air management.
A cooling device includes a frame structure housing an internal channel and an inlet port coupled to the frame structure. The inlet port is to receive a coolant fluid and to direct the coolant fluid to the internal channel. The cooling device includes one or more contactless cooling ports disposed on the frame structure and at a predetermined distance from an electronic chip. A contactless cooling port accelerates a stream of coolant fluid across a surface of the electronic chip to transfer heat from the electronic chip to the stream of coolant fluid. The cooling device includes a separator for segregating and diverging streams of coolant fluid. The cooling device includes a mounting structure secured to the frame structure, where the mounting structure is mounted to a server chassis or a server board.
Embodiments are disclosed of a battery package. The battery package includes one or more battery compartments each having an upstream end, a downstream end, and a plurality of sidewalls extending between the upstream end and the downstream end. Each battery compartment has a plurality of battery cells disposed therein. A supply module is fluidly coupled to the upstream end of the one or more battery compartments. The supply module includes a supply pump having an inlet and an outlet, and a supply flow channel that fluidly couples the outlet of the supply pump to the upstream ends of the one or more battery compartments.
H01M 10/627 - Installations fixes, p.ex. ensemble de production d’énergie tampon ou de production d’énergie de secours
H01M 10/6557 - Composants solides comprenant des canaux d'écoulement ou des tubes pour un échange de chaleur disposés entre les éléments
H01M 50/251 - Montures; Boîtiers secondaires ou cadres; Bâtis, modules ou blocs; Dispositifs de suspension; Amortisseurs; Dispositifs de transport ou de manutention; Supports spécialement adaptés aux dispositifs fixes, p.ex. production d’énergie tampon ou production d’énergie de secours
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p.ex. le niveau ou la densité de l'électrolyte
Hardware for cooling server memory arrays. In one embodiment, a server motherboard is provided on which a packaged data processing unit is mounted and electrically connected to metal traces formed thereon. Memory slots are also mounted on the server motherboard and electrically connected to metal traces formed thereon. Memory modules are received in the memory slots, respectively. A plurality of cooling devices are thermally connected to the plurality of memory modules, respectively. The plurality of the cooling devices are assembled in a cooling apparatus, which provides structural and thermal function for the cooling devices.
The present disclosure provides apparatus, systems, methods, and techniques for cooling using a fluid management hardware that allows for directly recirculating a liquid portion of two-phase fluids. In a core unit, a merging region is designed for the liquid portion may be merged with supply coolant to return to cooling the system, while the vapor portion may be transferred to external cooling and condensed to liquid to return to the coolant supply source. A pump is directly intaking coolant from the merging region. In an embodiment, the supply coolant may directly connected to the pump intaking loop. The cooling techniques may be applied to an advanced server rack having high power density servers. In some cases, the disclosed design may be used for distributing two phase coolant to servers with either cooling plate/cooling module or the server is immersion based packaged.
A server rack, includes a separation chamber that has an input to receive a mixed two-phase fluid from a server chassis, a vapor output at a top portion of the separation chamber, and a liquid output at a bottom portion of the separation chamber. The server rack includes a condenser that is fluidly connected to the vapor output of the separation chamber to receive and condense the vapor to a liquid, and a main outlet that is fluidly connected to both the liquid output of the separation chamber and to a condenser output of the condenser. The main outlet of the server rack is fluidly connected to an external cooling system which supplies the liquid back to the server rack.
According to one embodiment, a sensing system for an immersion cooling system that includes several flow sensors that are coupled to several lines that are coupled together and are arranged to sense flow rates of coolant flowing through their respective lines. The sensing system also includes a controller that is communicatively coupled to the flow sensors and is configured to receive sensor data from the sensors. The first line couples to a first pump that moves liquid coolant into an information technology (IT) enclosure, a second line couples to a second pump that moves coolant drawn from the enclosure into the second line, and the third line couples to a third pump that moves coolant drawn from a coolant source into the third line, the coolant drawn from the first lime is a combination of coolant from at least one of the second and third lines.
An electronic cooling apparatus is disclosed. The apparatus includes a top layer to receive cooling fluid. The apparatus further includes a fluid management core including a multiplicity of microchannel structures to cool electronic components and a multiplicity of fluid channels through which the cooling fluid is distributed to the microchannel structures. The apparatus further includes a base layer that includes a dedicated cooling area for placement of the fluid management core, and the base layer is to provide the cooling fluid to the fluid channels of the fluid management core. The apparatus further includes a sealing layer disposed between the top layer and the bottom layer to seal the fluid management core. The fluid management core provides non-uniform cooling distributions for different configurations and thermal map of a system on a chip.
H01L 23/473 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température impliquant le transfert de chaleur par des fluides en circulation par une circulation de liquides
45.
SERVER PACKAGING FOR IMMERSION COOLING WITH LOCAL ACCELERATION
A cooling unit includes a channel frame assembled to a server chassis to form a region enclosing an electronic chip that is disposed on a server board contained within the server chassis, an inlet port coupled to a first side of the channel frame to receive a coolant fluid, an outlet port coupled to a second side of the channel frame for coolant fluid in either a liquid phase or a vapor phase to exit the channel frame, and an internal structure disposed on an inner surface of the channel frame between the inlet port and the outlet port. The internal structure guides the coolant fluid flow and/or distribution along a surface of the electronic chip, where the electronic chip transfers heat to the coolant fluid to cause a portion of the coolant fluid to change from a liquid to a vapor phase.
A server chassis can include a first pair of connectors on a rear side of the server chassis arranged to face in a rear direction to engage with connectors of a server rack. Upon engaging of the connectors, the server chassis fluidly connects to a supply line and a return line of the server rack. The server chassis includes a second pair of connectors on a front side of the server chassis, to fluidly connect to a cooling system of a server node housed within the server chassis. The second pair of connectors are held to the server chassis with one or more movable attachments that enable coupling and decoupling of the second pair of connectors to the cooling system of the server node. Fluid channels fluidly connect the first pair of connectors to the second pair of fluid connectors.
Embodiments are disclosed of an energy storage unit. The unit includes a battery housing and a battery stack positioned in the battery housing. The battery stack includes N vertically stacked battery packs, N ≥ 2, and the N battery packs include at least a bottom battery pack and a top battery pack. N fluid channels formed in the battery housing, with each fluid channel fluidly coupled to a corresponding battery pack and extending vertically from its corresponding battery pack to the top of the battery housing. A condenser is positioned at the top of the battery housing and is fluidly coupled to the N fluid channels, so that vapor from each battery pack flows through the battery pack’s corresponding fluid channel to the condenser and liquid condensed by the condenser return to the channels of corresponding battery pack.
An information technology (IT) enclosure includes an IT container having immersion coolant self-contained therein, one or more cooler trays and one or more dedicated battery spacings that are alternately arranged in a series manner within the IT container. Each cooler tray to house a cooler, each battery spacing to house one or more rows of battery packs. The IT enclosure includes a supply channel disposed at a first side of the IT container, and a return channel and a fluid pump disposed at another side of the IT container. Where, when in operation, the immersion coolant circulates amongst the alternate one or more rows of battery packs and coolers to transfer a thermal load from the one or more rows of battery packs to the coolers.
Embodiments are disclosed of an IT rack and a server including a cooling module. The IT rack includes an integrated a fluid distribution manifold set with a supply manifold on the front side of the rack and a return manifold on the rear side of the rack. The supply manifold extends from the front side to the rear side of the rack, and rack connectors, which fluidly couple the rack to the facility system of a data center, are designed on the top of the rack. Supply and return connectors are designed on the manifolds so that the connectors face each other within the rack. Each server housed in the rack includes a cooling module with a movable connector set that can be extended outside the server chassis to connect with the manifolds. The cooling module's connector set includes a transmission structure that allows both the supply and return connectors of the connector set to engage with the connectors on the supply and return manifolds.
The present disclosure provides apparatus, systems, methods, and techniques for cooling using a passive internal return loop with two-phase fluids. The cooling techniques may be applied to an advanced server rack having high power density servers. The server rack may be either packaged with one or more cooling modules or employ a fully sealed immersion configuration. For example, coolant in the vapor state may be separated from coolant in the liquid state in the two-phase coolant, and the coolant in the liquid state may be recirculated to cool the server (or other sub cooling systems) by gravity (i.e., pump-free).
A cooling system includes a container and a number of battery packaging modules submerged in a first coolant fluid contained in the container. The cooling system includes a supply channel and a return channel coupled respectively to at least a supply end and at least a return end of the battery packaging modules to accelerate a second coolant fluid through any of the battery packaging modules. The cooling system includes one or more pairs of fluid valves secured to the supply and return channels, each pair to control the second coolant fluid flowing through a subset of the plurality of battery packaging modules. The cooling system includes a fluid pump disposed at the channels to accelerate the second coolant fluid supplied to any of the battery packaging modules which are in activated modes.
Presented herein are embodiments of systems and methods for training a system and using a trained system to generate super-resolution imagery from low-resolution imagery. Embodiments for generating super-resolution imagery from low-resolution imagery include obtaining an input trade-off parameter that indicates a preference regarding low distortion or high perceptual quality for a generated SR image and obtaining a latent variable from a distribution defined, at least in part, by a trade-off parameter. Embodiments include inputting an LR image and the latent variable into an embodiment of an invertible rescaling network (IRNN) in an inverse upscaling direction of the IRNN to generate an output SR image that comprises accuracy and perception qualities conditioned by the input trade-off parameter. In one or more embodiments, a trained IRNN accepts a value for a trade-off parameter that indicates a desired trade-off between whether the trained IRNN generates an SR image having lower distortion or higher perceptual quality.
Embodiments are disclosed of an information technology (IT) cooling system. An IT container defines an internal volume and an immersion tank-which is adapted to submerge one or more servers in a two-phase immersion fluid and has a tank inlet fluidly coupled to a source of the two-phase immersion fluid. One or more cooling devices can be thermally coupled to a heat-generating component in a server, and each cooling device has a liquid inlet at or near its bottom and a vapor outlet at or near its top. A liquid distribution manifold below the cooling devices has a main liquid inlet and a plurality of liquid distribution outlets; at least one liquid distribution outlet is fluidly coupled to the liquid inlet of a cooling device. A vapor return above the one or more cooling devices has a plurality of vapor collection inlets and a main vapor outlet. At least one vapor collection inlet is fluidly coupled to the vapor outlet of a cooling device, so that a second two-phase fluid circulates through the liquid distribution manifold, the cooling devices, and the vapor return manifold.
A battery chassis for immersion cooling includes one or more groups of battery cells, an inlet, a condenser, and one or more fluid connectors disposed on the top of the chassis. For example, an inlet is disposed on a bottom of the chassis to receive two-phase cooling fluid from an immersion container, and the two-phase cooling fluid is to extract heat from the one or more battery cells and to transform from a liquid form into a vapor. A condenser is disposed on a top of the chassis to condense the vapor contained within the chassis of the two-phase fluid back into the liquid form. One or more fluid connectors disposed on the top of the chassis to connect the condenser with external cooling fluid via a liquid line, and the battery chassis is to be at least partially submerged in the two-phase cooling fluid of the immersion container.
H01M 10/6569 - Fluides qui subissent un changement ou une transition de phase liquide-gaz, p.ex. évaporation ou condensation
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
H01M 10/613 - Refroidissement ou maintien du froid
H01M 10/6568 - Liquides caractérisés par des circuits d'écoulement. p.ex. boucles, situés à l'extérieur des éléments ou des boîtiers des éléments
H01M 50/271 - Couvercles des boîtiers secondaires, des bâtis ou des blocs
H01M 10/48 - Accumulateurs combinés à des dispositions pour mesurer, tester ou indiquer l'état des éléments, p.ex. le niveau ou la densité de l'électrolyte
55.
System and method for servicing and controlling a leak segregation and detection system of an electronics rack
According to one embodiment, a rack cooling module for an electronics rack. The module includes a manifold section that has a supply manifold that is coupled to a supply manifold connector, the supply manifold is arranged to supply liquid coolant from a coolant source to supply manifold connectors, and a return manifold that is coupled to return manifold connectors, the return manifold is arranged to return liquid coolant from the return manifold connector to the coolant source. The module also includes a detection section that has a channel that extends vertically within the detection section and a leak detection sensor that is disposed within the channel, a pump that couples the channel to the return manifold, and a valve that couples the channel to the supply manifold.
G06F 1/16 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES - Détails non couverts par les groupes et - Détails ou dispositions de structure
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
H05K 7/00 - CIRCUITS IMPRIMÉS; ENVELOPPES OU DÉTAILS DE RÉALISATION D'APPAREILS ÉLECTRIQUES; FABRICATION D'ENSEMBLES DE COMPOSANTS ÉLECTRIQUES - Détails de construction communs à différents types d'appareils électriques
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
Baidu.com Times Technology (Beijing) Co., Ltd. (Chine)
Inventeur(s)
Kou, Haofeng
Zheng, Huimeng
Abrégé
Embodiments presented herein facilitate improvement of a deployed neural network model's accuracy without significantly affecting its operation. In one or more embodiments, online training of the deployed model may be performed using a second neural network model that has higher accuracy than the deployed neural network model. In one or more embodiments, the second neural network model may also be improved online. Embodiments may be deployed in system, such as edge computing environments, in which neural networks deployed at the edge can be centrally monitored and updated.
Baidu.com Times Technology (Beijing) Co., Ltd. (Chine)
Inventeur(s)
Zheng, Huimeng
Kou, Haofeng
Abrégé
One application of deep learning methods and labelled data is for industrial production or work applications. For such applications implemented with machine learning applications, massive amounts of data are required to train, validate, and/or tune models for better fitting the requirements. However, obtaining such data has typically be costly and difficult. Embodiments provide adaptable processes that provide data labelling methods for work settings. Embodiments take advantage of the work or production processes to label and collect data, which save time and money and improves accuracy. Embodiments prevent or reduce the need for worker training costs and human mistake-triggered data labelling problems. Embodiments also improve data labelling quality and speed-up of the development cycle.
G05B 13/02 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
Embodiments are disclosed of an information technology (IT) cooling system. The system includes an IT container having an internal volume. Inside the internal volume there is an immersion fluid region adapted to submerge one or more servers in a two-phase immersion fluid. An immersion condenser is positioned above the immersion fluid region in the internal volume. The design includes a circulation condenser. The circulation condenser is fluidly coupled to a liquid distribution manifold and a vapor return manifold that are positioned in the internal volume above the immersion tank (i.e., the immersion fluid region) and are adapted to circulate a two-phase circulation fluid. The circulation condenser is also fluidly coupled to the immersion condenser, and an external cooling fluid is pumped from the circulation condenser to the immersion condenser. The distribution manifolds are adapted to be fluidly coupled to the server liquid cooling loops.
In one embodiment, an immersion cooling system includes a container to contain first coolant received from a first cooling source and server chassis at least partially submerged into the first coolant. Each server chassis includes an electronic device and a cooling plate attached thereon to extract at least a portion of heat generated by the electronic device. The cooling plate includes an inlet port to receive second coolant from a second cooling source, a coolant channel to distribute the second coolant, and an outlet port to return the second coolant back to the second cooling source. The cooling system further includes a return manifold to be coupled to the second cooling source, the return manifold having one or more manifold return connectors respectively coupled with the server chassis and to receive and return the second coolant from the server chassis back to the second cooling source.
According to one embodiment, a cooling system that includes one or more information technology (IT) enclosures, each IT enclosure having one or more pieces of IT equipment that is configured to provide IT serveries and is at least partially submerged within a liquid coolant, a distribution manifold to which each of the one or more IT enclosures is coupled in parallel to one another, and a management unit that is coupled to the distribution manifold and to a liquid coolant source that is arranged to supply liquid coolant to the management unit that stores the liquid coolant, the management unit is configured to maintain and automatically balancing a same level of liquid coolant in each of the one or more IT enclosures and the liquid coolant stored in the management unit via the distribution manifold.
An obstacle is detected based on sensor data obtained from a plurality of sensors of the ADV. Multiple trajectories of the obstacle are predicted with corresponding probabilities including a first predicted trajectory of the obstacle with a highest probability and a second predicted trajectory of the obstacle with a second highest probability. A cautionary trajectory of the ADV is planned based on at least one of a difference between the highest probability and the second highest probability or a consequence of the second trajectory. The ADV is to drive with a speed lower than a speed limit and prepare to stop in the cautionary trajectory. The ADV is controlled to drive according to the cautionary trajectory.
B60W 50/00 - COMMANDE CONJUGUÉE DE PLUSIEURS SOUS-ENSEMBLES D'UN VÉHICULE, DE FONCTION OU DE TYPE DIFFÉRENTS; SYSTÈMES DE COMMANDE SPÉCIALEMENT ADAPTÉS AUX VÉHICULES HYBRIDES; SYSTÈMES D'AIDE À LA CONDUITE DE VÉHICULES ROUTIERS, NON LIÉS À LA COMMANDE D'UN SOUS-ENSEMBLE PARTICULIER - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier
G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p.ex. véhicules ou piétons; Reconnaissance des objets de la circulation, p.ex. signalisation routière, feux de signalisation ou routes
62.
SAFETY GUARANTEED CONTROL WHEN PLANNING WITH UNCERTAINTY
According to some embodiments, described herein is a method and a system for guaranteeing safety at a control level of an ADV when at least a portion of a planned path generated by a planning module of the ADV is uncertain due to traffics and/or road condition changes. The planning module, when generating a path, also generate a confidence level of each segment of the path based on one or more of perception data, map information, or traffic rules. The confidence levels are decreasing further away from the ADV. When the control module of the ADV obtains the path and the associated confidence levels, the control module issue control commands to track only one or two segments whose confidence levels exceeds a threshold hold, and issue default control commands for the rest of the path.
B60W 40/02 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes
G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p.ex. véhicules ou piétons; Reconnaissance des objets de la circulation, p.ex. signalisation routière, feux de signalisation ou routes
According to various embodiments, described herein is a method of creating a simulation environment with multiple simulation obstacle vehicles, each with a different human-like driving style. Training datasets with different driving styles can be collected from individual human drivers, and can be combined to generate mixed datasets, each mixed dataset including only data of a particular driving style. Multiple learning-based motion planner critics can be trained using the mixed datasets, and can be used to tune multiple motion planners. Each tuned motion planner can have a different human-like driving style, and can be installed in one of multiple simulation obstacle vehicles. The simulation obstacle vehicles with different human-like driving styles can be deployed to the simulation environment to make the simulation environment more resemble a real-world driving environment.
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p.ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
Embodiments are disclosed of a cooling device. The cooling device includes a housing enclosing an internal volume, the housing having at least a heat transfer contact surface adapted to be thermally coupled to a heat-generating electronic component. A partition is positioned in the internal volume; the partition divides the internal volume into a liquid compartment and a vapor compartment, and the partition has a gap therein to allow fluid movement between the liquid compartment and the vapor compartment. A liquid inlet is fluidly coupled to the liquid compartment; a liquid outlet is fluidly coupled to the vapor compartment; and a vapor outlet is fluidly coupled to with the vapor compartment. Embodiments of cooling systems including design and operation using the cooling device are also disclosed.
According to one embodiment, a containment system for an electronics rack that includes a top structure that is movably coupled on top of the electronics rack, a first side structure that is movably coupled to a first side of the electronics rack, and a second side structure that is movably coupled to a second side of the electronics rack that is opposite to the first side, each of the structures is arranged to move along an axis and at least partially beyond either a front end or a back end of the electronics rack creating a containment region that is at least partially surrounded by the top structure, the first side structure, and the second side structure.
An obstacle is detected based on sensor data obtained from a plurality of sensors of the ADV. A distribution of a plurality of positions of the obstacle at a point of time may be predicted. A range of positions of the plurality of positions of the obstacle may be determined based on a confidence level of the range. A modified shape with a modified length of the obstacle may be determined based on the range of positions of the obstacle. A trajectory of the ADV based on the modified shape with the modified length of the obstacle may be planned. The ADV may be controlled to drive according to the planned trajectory to drive safely to avoid a collision with the obstacle.
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
B60W 30/095 - Prévision du trajet ou de la probabilité de collision
B60W 30/09 - Entreprenant une action automatiquement pour éviter la collision, p.ex. en freinant ou tournant
B60W 40/04 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés aux conditions de trafic
B60W 50/00 - COMMANDE CONJUGUÉE DE PLUSIEURS SOUS-ENSEMBLES D'UN VÉHICULE, DE FONCTION OU DE TYPE DIFFÉRENTS; SYSTÈMES DE COMMANDE SPÉCIALEMENT ADAPTÉS AUX VÉHICULES HYBRIDES; SYSTÈMES D'AIDE À LA CONDUITE DE VÉHICULES ROUTIERS, NON LIÉS À LA COMMANDE D'UN SOUS-ENSEMBLE PARTICULIER - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier
G06V 20/58 - Reconnaissance d’objets en mouvement ou d’obstacles, p.ex. véhicules ou piétons; Reconnaissance des objets de la circulation, p.ex. signalisation routière, feux de signalisation ou routes
Presented are systems and methods that construct BipartitE Graph INdices (BEGIN) embodiments for fast neural ranking. BEGIN embodiments comprise two types of nodes: sampled queries and base or searching objects. In one or more embodiments, edges connecting these nodes are constructed by using a neural network ranking measure. These embodiments extend traditional search-on-graph methods and lend themselves to fast neural ranking. Experimental results demonstrate the effectiveness and efficiency of such embodiments.
A cooling plate includes a fluid inlet port, a cooling enclosure, and an inlet channel coupled between the fluid inlet port and the cooling enclosure to channel a two-phase fluid entering from the inlet port to the cooling enclosure. The cooling enclosure includes a number of heat spreading structures coupled to an inner surface of the cooling enclosure to form spacings, where the two-phase fluid in contact with the heat spreading structures causes portions of the two-phase fluid to change into a vapor phase. The cooling plate includes an extended vapor channel coupled to the cooling enclosure to collect the two-phase fluid in vapor phase. The cooling plate includes a vapor outlet port coupled to the extended vapor channel for the two-phase fluid in vapor phase to exit the vapor outlet port, where the cooling plate is submersible in an immersion tank containing a single-phase immersion fluid.
A connector assembly may include a plate to be attached to a server chassis of an electronic rack; a connection module; and a moveable alignment module having a guiding structure and configured to be coupled to the plate via the connection module. The moveable alignment module may house one or more fluid blind mate connectors that fluidly connect to one or more cold plates that are thermally coupled to one or more electronic server components of the server chassis. The connection module may enable the moveable alignment module to be moveable when the guiding structure engages a distribution manifold of the electronic rack to align and couple the one or more fluid blind mate connectors to either at least one of a supply line connector or a return line connector of the distribution manifold, thereby enabling fluid communication between the server chassis and the distribution manifold.
A two-phase fluid management system, may include a sealed container and a mobile condenser that moves within the sealed container. The sealed container may include a plurality of input ports, each to receive a two-phase fluid as vapor from a respective one of a plurality of IT enclosures and a plurality of output ports, each to return the two-phase fluid as liquid to the respective one of the plurality of IT enclosures. The mobile condenser may be coupled to or include an actuator to move the mobile condenser to a respective one of a plurality of positions within the sealed container. An air intake and air outlet of the mobile condenser may form a sealed connection with a pair of condenser ports when the mobile condenser moves to the respective one of the plurality of positions.
Systems and methods to provide a prefabricated module design for heterogeneous data centers are described. An apparatus to provide cooling for an electronic rack of a data center comprises a plurality of lines. A main chassis is coupled to the plurality of lines. The main chassis is configured to be integrated on the electronic rack. An extension chassis is coupled to the main chassis. The extension chassis is configured to move relative to the main chassis. A plurality of connection ports are coupled to the extension chassis to provide connections between the electronic rack and one or more external sources. The plurality of connection ports are configured to move relative to the plurality of lines that are at fixed locations on the electronic rack.
A connector assembly may include a distribution frame having an adjusting channel; and one or more distribution modules disposed and slidably moveable along the adjusting channel. Each of the one or more distribution modules may include an inlet connector to receive cooling liquid from a cooling liquid loop, a fluid blind mate connector to-connect the cooling liquid loop to one or more cold plates of a server chassis, and a guiding element having a guiding structure and configured to house the fluid blind mate connector. When the he guiding element contacts with the server chassis, the guiding element causes the corresponding distribution module to move slightly to align the fluid blind mate connector with a server connector of the server chassis, such that the fluid blind mate connector connects with the server connector to distribute the cooling liquid to the server chassis.
A rack with two-phase loop recirculation includes a supply manifold, a return manifold, and a separator. For example, a supply manifold is configured to receive two-phase cooling fluid from a cooling fluid source to distribute the two-phase cooling fluid to one or more server chassis. The two-phase cooling fluid is to extract heat from the one or more electronic devices and to transform into two-phase mixing fluid having at least a portion of the two-phase fluid transformed into vapor. A return manifold is configured to receive the two-phase mixing fluid from one or more loops associated with one or more electronic devices of the server chassis. A separator disposed on the return manifold is configured to separate the vapor of the two-phase mixing fluid and to divert first remaining two-phase cooling fluid of the two-phase mixing fluid directly back to the supply manifold through a return loop.
G06F 1/16 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES - Détails non couverts par les groupes et - Détails ou dispositions de structure
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
H05K 7/00 - CIRCUITS IMPRIMÉS; ENVELOPPES OU DÉTAILS DE RÉALISATION D'APPAREILS ÉLECTRIQUES; FABRICATION D'ENSEMBLES DE COMPOSANTS ÉLECTRIQUES - Détails de construction communs à différents types d'appareils électriques
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
74.
TWO PHASE IMMERSION SYSTEM WITH LOCAL FLUID ACCELERATIONS
A cooling plate includes an inlet port to receive two-phase fluid, a base plate to be attached to server electronics for cooling, a number of heat spreading structures disposed and spaced apart on the base plate to extend a heat exchange area from the base plate, and a number of fluid channels disposed on the base plate, where each of the fluid channels is situated between a pair of adjacent heat spreading structures. Each of the fluid channels include a channel inlet to receive at least a portion of the two-phase fluid from the inlet port, a channel outlet to allow the received portion of the two-phase fluid to flow through and exit the corresponding fluid channel, and one or more intermediate outlets disposed between the channel inlet and the channel outlet to allow at least a portion of the received two-phase fluid to exit in vapor or liquid form.
Systems, apparatuses and methods to provide a hybrid cooling for servers of a data center are described. A cooling plate comprises an inlet port to receive a coolant from a coolant source. The coolant is a two-phase coolant that transforms from a liquid state into vapor when being attached to an electronic device to extract heat from the electronic device. The cooling plate comprises an outlet port to output at least a portion of the coolant back to the coolant source. The cooling plate comprises a vapor port to output the vapor generated from the coolant to a condenser that is configured to condense the vapor back to the liquid state.
Representation learning for text and speech has improved many language-related tasks. However, existing methods only learn from one input modality, while a unified representation for both speech and text is needed for tasks such as end-to-end speech translation. Consequently, these methods cannot exploit various large-scale text and speech data and their performance is limited by the scarcity of parallel speech translation data. To address these problems, embodiments of a fused acoustic and text masked language model (FAT-MLM) are disclosed. FAT-MLM embodiments jointly learn a unified representation for both acoustic and text input from various types of corpora including parallel data for speech recognition and machine translation, and pure speech and text data. Within this cross-modal representation learning framework, an end-to-end model is further presented for fused acoustic and text speech translation. Experiments show that by fine-tuning from FAT-MLM, the speech translation model embodiments substantially improve translation quality.
G06F 40/58 - Utilisation de traduction automatisée, p.ex. pour recherches multilingues, pour fournir aux dispositifs clients une traduction effectuée par le serveur ou pour la traduction en temps réel
G10L 15/06 - Création de gabarits de référence; Entraînement des systèmes de reconnaissance de la parole, p.ex. adaptation aux caractéristiques de la voix du locuteur
G10L 15/28 - Reconnaissance de la parole - Détails de structure des systèmes de reconnaissance de la parole
77.
LEARNING ENERGY-BASED MODEL WITH VARIATIONAL AUTO-ENCODER AS AMORTIZED SAMPLER
Training energy-based models (EBMs) by maximum likelihood may require MCMC sampling to approximate the gradient of Kullback-Leibler divergence between data and model distributions, but it is non-trivial to sample from an EBM because of the difficulty of mixing between modes. The present disclosure discloses embodiments to learn a variational auto-encoder (VAE) to initialize a finite-step MCMC derived from an energy function for efficient amortized sampling of the EBM. With these amortized MCMC samples, the EBM may be trained by maximum likelihood, which follows an “analysis by synthesis” scheme; while the VAE learns from MCMC samples via variational Bayes. In this joint training process, the VAE chases the EBM toward data distribution. The learning methodology may be interpreted as a dynamic alternating projection in the context of information geometry. The disclosed model may generate samples comparable to GANs and EBMs, and learn effective probabilistic distribution toward supervised conditional learning tasks.
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p.ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
78.
LEARNING-BASED CRITIC FOR TUNING A MOTION PLANNER OF AUTONOMOUS DRIVING VEHICLE
Described herein are a method of training a learning-based critic for tuning a rule-based motion planner of an autonomous driving vehicle, a method of tuning a motion planner using an automatic tuning framework that with the learning-based critic. The method includes receiving training data that incudes human driving trajectories and random trajectories derived from the human driving trajectories; training a learning-based critic using the training data; identifying a set of discrepant trajectories by comparing a first set of trajectories, and a second set of trajectories; and refining, at the neural network training platform, the learning-based critic based on the set of discrepant trajectories. The automatic tuning framework can remove human efforts in tedious parameter tuning, reduce tuning time, while retaining the physical and safety constraints of the ruled-based motion planner. Further, the automatic tuning framework can create personalized motion planners when the learning-based critic is trained using different human driving datasets.
B60W 60/00 - Systèmes d’aide à la conduite spécialement adaptés aux véhicules routiers autonomes
B60W 50/00 - COMMANDE CONJUGUÉE DE PLUSIEURS SOUS-ENSEMBLES D'UN VÉHICULE, DE FONCTION OU DE TYPE DIFFÉRENTS; SYSTÈMES DE COMMANDE SPÉCIALEMENT ADAPTÉS AUX VÉHICULES HYBRIDES; SYSTÈMES D'AIDE À LA CONDUITE DE VÉHICULES ROUTIERS, NON LIÉS À LA COMMANDE D'UN SOUS-ENSEMBLE PARTICULIER - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier
An information technology (IT) enclosure may have a hybrid architecture. Such an enclosure may include an immersion tank that holds a single-phase coolant fluid. One or more servers may be immersed in the tank. The server chassis may have electronics that are thermally coupled to a two-phase fluid via a thermosiphon loop. The server chassis includes a condensing unit forming the thermosiphon loop and the condensing unit is submerged in the single phase fluid.
Presented herein are embodiments of a bi-level optimization framework an inner loop phase optimizes an example-level problem to generate robust exemplars, while an outer loop phase proposes an adaptive optimization to achieve the robustness of the projected DNN models. Embodiments for watermarking a deep neural network include obtaining a set of temporary parameters for a temporary model. The set of temporary parameters may be generated based upon a set of base parameters of a base model. Embodiments may further include generating a set of boundary watermark exemplars using the set of temporary parameters for the temporary model. In one or more embodiments, the set of boundary watermark exemplars maximizes an identification loss of the temporary model on a set of watermark data. Embodiments may further include outputting a watermark embedded base model by embedding the set of boundary watermark exemplars into one or more base parameters of the base model.
Embodiments are disclosed of a fluid delivery and distribution apparatus. The apparatus includes an energy-generating fluid distributor with a hot manifold including a hot chamber fluidly coupled to one or more fluid return inlets and a distributor return outlet, a cold manifold including a cold chamber fluidly coupled to a distributor supply inlet and one or more fluid supply outlets, and one or more thermoelectric devices sandwiched between the hot manifold and the cold manifold so that the thermoelectric device is in thermal contact with the hot chamber and in thermal contact with the cold chamber. The outlet of a main supply line is fluidly coupled to the distributor supply inlet, and the main supply line has a pump fluidly coupled therein that is electrically coupled to the thermoelectric device. The outlet of a main return line is fluidly coupled to the distributor return outlet.
In one embodiment, an electronic device cooling package includes an enclosure to house an electronics package, the enclosure including at least one panel with an integrated conducting plate exposed to both an inner surface of the at least one panel and an outer surface of the at least one panel. The electronic device cooling package further includes a mounting mechanism attached to the enclosure to detachably couple a cooling device to the outer surface of the at least one panel of the enclosure. Different electronics packaged within the cooling package includes different co-design of the cooling package and cooling devices.
Embodiments are disclosed of a fluid distributor and systems with the fluid distributor. The fluid distributor includes a fluid supply conduit having a main supply inlet and a main supply outlet and a fluid return conduit having a main return inlet and a main return outlet. A thermoelectric assembly is sandwiched between the supply conduit and the return conduit. The thermoelectric assembly including a thermoelectric device sandwiched between a pair of thermally conductive layers, with one thermally conductive layer in thermal contact with the supply conduit and the other thermally conductive layer in thermal contact with the return conduit.
TLB poisoning attacks take advantage of security issues of translation lookaside buffer (TLB) management on SEV processors in Secure Encrypted Virtualization (SEV) virtual machines (VMs). In various embodiments, a hypervisor may poison TLB entries between two processes of a SEV VM to compromise the integrity and confidentiality of the SEV VM. Variants of TLB poisoning attacks and end-to-end attacks are shown to be successful on both Advanced Micro Devices (AMD) SEV and SEV-Encrypted State (SEV-ES). Countermeasures for thwarting TLB poisoning attacks include hardware-enforced TLB flush processes and re-exec schemes that, among other things, prevent attackers from manipulating TLB entries and causing a privileged victim process to execute malicious code in an attempt to bypass a password authentication.
G06F 21/75 - Protection de composants spécifiques internes ou périphériques, où la protection d'un composant mène à la protection de tout le calculateur pour assurer la sécurité du calcul ou du traitement de l’information par inhibition de l’analyse de circuit ou du fonctionnement, p.ex. pour empêcher l'ingénierie inverse
G06F 21/54 - Contrôle des usagers, programmes ou dispositifs de préservation de l’intégrité des plates-formes, p.ex. des processeurs, des micrologiciels ou des systèmes d’exploitation au stade de l’exécution du programme, p.ex. intégrité de la pile, débordement de tampon ou prévention d'effacement involontaire de données par ajout de routines ou d’objets de sécurité aux programmes
G06F 21/55 - Détection d’intrusion locale ou mise en œuvre de contre-mesures
TLB poisoning attacks take advantage of security issues of translation lookaside buffer (TLB) management on SEV processors in Secure Encrypted Virtualization (SEV) virtual machines (VMs). In various embodiments, a hypervisor may poison TLB entries between two processes of a SEV VM to compromise the integrity and confidentiality of the SEV VM. Variants of TLB poisoning attacks and end-to-end attacks are shown to be successful on both Advanced Micro Devices (AMD) SEV and SEV-Encrypted State (SEV-ES). Countermeasures for thwarting TLB poisoning attacks include hardware-enforced TLB flush processes and re-exec schemes that, among other things, prevent attackers from manipulating TLB entries and causing a privileged victim process to execute malicious code in an attempt to bypass a password authentication.
Methods, systems, and devices for electronic rack level testing and/or verification are disclosed. The disclosed systems may provide for automated testing of electronic racks that may include fluid recirculation systems. To provide for automated testing, a test unit of a system may automatically and without manual intervention circulate coolant to an electronic rack under test. The testing unit may also pressurize the electronic rack. The testing unit may further depressurize the electronic rack to provide for efficient delivering, deployment commissioning, and reduce the likelihood of coolant circulation issues occurring when initially deployed. A testing server of the system may also provide for load testing and thermal cycling of the electronic rack in an automated manner.
In one embodiment, a liquid cooling system includes a coolant distribution device including a first set of fluid connectors to receive a cooling liquid and a second set of fluid connectors to distribute coolant to a cooling device and a cooling device coupled to the coolant distribution device. The cooling device includes an elongated chassis, a cooling plate integrated, contained, and/or prefabricated within the elongated chassis of the cooling device, and a fluid distribution channel integrated within the elongated chassis to provide cooling liquid to the cooling plate. The cooling device further includes fluid connectors to receive the cooling liquid from a coolant distribution device and a blocking channel disposed between the cooling plate and the fluid connectors, the blocking channel to mate with a blocking plate of the coolant distribution device.
The cooling system for a data center includes an information technology (IT) container, secondary condensing system, and a coolant distribution unit. In particular, an IT container includes a liquid region to store cooling liquid, a vapor region to receive vapor evaporated from the cooling liquid, and a primary condenser disposed within the vapor region to condense the vapor. For example, the external cooling air or cooling liquid is controlled to be delivered to condensers. Further, a secondary condenser is coupled to the IT container via a vapor line to receive at least a portion of the vapor from the vapor region of the IT container and to condense the portion of the vapor. Furthermore, a coolant distribution unit is coupled to the IT container and the secondary condenser to store and to distribute the cooling liquid to the IT container.
A coolant management unit for providing liquid cooling for backup battery unit (BBU) modules of an electronic rack includes a BBU return manifold, a BBU supply manifold, a balance loop, and a power bus. For example, a BBU supply manifold having a rack supply connector to receive cooling fluid from a rack supply manifold and a BBU supply connector to be connected to one of the BBU modules to distribute the cooling fluid. A BBU return manifold to be coupled to a rack return manifold, wherein the BBU return manifold is to receive vapor from the BBU modules. A balance loop connected to each of the BBU modules to establish a fluid connection amongst the BBU modules, such that a level of the cooling fluid in each of the BBU modules remains similar.
According to one embodiment, a method is provided for video repainting performed by at least one processor of a computer device. The method includes receiving a video sequence having one or more image frames; detecting presences of a target object within the one or more image frames and determining pose condition and style shift of the detected objects; generating content representing a replacement object for the one or more image frames by applying the corresponding pose condition and style shift to the replacement object; and repainting the detected target object in the one or more image frames with the generated content.
A data center and a data center cluster have plurality of immersion cooling systems and a plurality of coolant units that provide two-phase coolant to one or more of the plurality of immersion cooling systems. Each coolant unit dispatches and manages two-phase coolant to two or more of the plurality of immersion cooling systems. The coolant units can fill or empty an immersion tank of an immersion cooling system, and can empty or fill a coolant tank in the coolant unit. A single-phase cooling fluid cools the vapor phase of the two-phase coolant in each immersion cooling system. The coolant units are modular, with a common interface to other coolant units and to immersion cooling systems to create a scalable cooling system and data center.
TLB poisoning attacks take advantage of security issues of translation lookaside buffer (TLB) management on SEV processors in Secure Encrypted Virtualization (SEV) virtual machines (VMs). In various embodiments, a hypervisor may poison TLB entries between two processes of a SEV VM to compromise the integrity and confidentiality of the SEV VM. Variants of TLB poisoning attacks and end-to-end attacks are shown to be successful on both Advanced Micro Devices (AMD) SEV and SEV-Encrypted State (SEV-ES). Countermeasures for thwarting TLB poisoning attacks include hardware-enforced TLB flush processes and re-exec schemes that, among other things, prevent attackers from manipulating TLB entries and causing a privileged victim process to execute malicious code in an attempt to bypass a password authentication.
G06F 21/56 - Détection ou gestion de programmes malveillants, p.ex. dispositions anti-virus
G06F 9/455 - Dispositions pour exécuter des programmes spécifiques Émulation; Interprétation; Simulation de logiciel, p.ex. virtualisation ou émulation des moteurs d’exécution d’applications ou de systèmes d’exploitation
G06F 21/57 - Certification ou préservation de plates-formes informatiques fiables, p.ex. démarrages ou arrêts sécurisés, suivis de version, contrôles de logiciel système, mises à jour sécurisées ou évaluation de vulnérabilité
93.
Symmetrical dual fluid distribution unit for server rack
A fluid distribution apparatus for servers mounted onto a rack. The apparatus includes one or more pairs of distribution units that are rotationally symmetric and are attached to each other to form the pair. Each of the distribution units includes a main supply port and main return port that are connected to the rack's fluid manifolds. Each of the distribution units also includes plurality of supply and return connectors that connect to the servers. A pump in each of the distribution units delivers fluid from the rack's fluid manifolds to the servers for cooling. Each server is connected to fluid ports on both distribution units, so as to provide full redundancy. A controller receives signals form the servers and sends operation signals to the pumps to control the fluid delivery for cooling the servers.
A fluid distribution system is incorporated into a server chassis. Connector plates have fluid connectors designed to connect with fluid cooling receptacles on server boards. A linkage system can be manually manipulated to translate the connector plates so as to engage the electronics boards and connect the fluid connectors to the receptacle. A pair of main connectors connect to the rack's fluid manifold to circulate cooling fluid to cool devices mounted onto the server boards. A locking mechanism can be included to mechanically lock the chassis to the rack to prevent accidental dismount of the chassis from the rack. Also, an anchor mechanism may be provided to apply counter force when engaging the connector plates with the server boards so as to prevent accidental dismount of the server board by the moving connector plate.
G06F 1/16 - TRAITEMENT ÉLECTRIQUE DE DONNÉES NUMÉRIQUES - Détails non couverts par les groupes et - Détails ou dispositions de structure
H05K 5/00 - Enveloppes, coffrets ou tiroirs pour appareils électriques
H05K 7/00 - CIRCUITS IMPRIMÉS; ENVELOPPES OU DÉTAILS DE RÉALISATION D'APPAREILS ÉLECTRIQUES; FABRICATION D'ENSEMBLES DE COMPOSANTS ÉLECTRIQUES - Détails de construction communs à différents types d'appareils électriques
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
H05K 7/14 - Montage de la structure de support dans l'enveloppe, sur cadre ou sur bâti
95.
Liquid cooling server deployment and delivery apparatus and operation
A fluid deployment unit includes an expandable container containing mixed fluids in a gaseous region and a liquid region, where the expandable container includes a gas-out port, a liquid-out port, a gas-in port, and a liquid-in port. The fluid deployment unit includes a first three-way valve having a first port coupled to the liquid-out port, a second port coupled to the gas-out port, and a third port matable to an inlet of an electronic rack. The fluid deployment unit includes a second three-way valve having a first port matable to an input port of a liquid-to-liquid exchange unit of a testing assistant unit, a second port coupled to the gas-in port, and a third port matable to an outlet of the electronic rack, where the liquid-in port of the expandable container is matable to an output port of the liquid-to-liquid exchange unit.
According to one embodiment, a cooling assembly includes a cooling plate to be attached to an electronic device and a bidirectional connector for circulating cooling fluid to the cooling plate. The bidirectional connector includes a first tubing structure having a first fluid channel therein to supply the cooling fluid flowing in a first direction to the cooling plate, a second tubing structure that encloses the first tubing structure therein. The first tubing structure is positioned spaced apart from the second tubing structure to form a second fluid channel between an outer surface of the first tubing structure and an inner surface of the second tubing structure. The second fluid channel is configured to receive the cooling fluid returned from the cooling plate. The first and second fluid channels are configured to operate a supply and a return fluid streams in opposite directions, respectively.
According to one embodiment, a connector module, including a first bidirectional connector and a second bidirectional connector to fluidly interconnect between a cooling module of a server chassis and a rack manifold of an electronic rack; and a middle section positioned and connected between the first bidirectional connector and the second bidirectional connector. The middle section includes a side wall that separates the first bidirectional connector and the second bidirectional connector, and a side gate disposed on the side wall to place the first bidirectional connector and second bidirectional connector in fluid communication while in a first position and to fluidly isolate the first bidirectional connector from the second bidirectional connector while in a second position. The side gate is adapted to actuate to the first position when a fluid pressure differential between the first bidirectional connector and the second bidirectional connector exceeds a predetermined threshold.
Model pruning is used to trim large neural networks, like convolutional neural networks (CNNs), to reduce computation overheads. Existing model pruning methods mainly rely on heuristics rules or local relationships of CNN layers. A novel hypernetwork based on graph neural network is disclosed for generating and evaluating pruned networks. A graph is first constructed according to information flow of channels and layers in a CNN network, with channels and layers represented as nodes and information flows represented as edges. A graph neural network is applied to aggregate both local and global dependencies across all channels and layers of the CNN network, resulting in informative node embeddings. With such embeddings, pruned CNN networks including their architectures and weights may be effectively generated and evaluated.
A server chassis for a server rack can include a connector assembly. The connector assembly can include a first pair of connectors to fluidly connect to one or more cold plates that are thermally coupled to one or more electronic server components, and a second pair of connectors, to fluidly connect to a supply line and return line of the server rack. The connector assembly may further include a mobile plate upon which the second pair of connectors are attached to. The mobile plate may be attached as part of the connector assembly and movable to and from a direction that connects or disconnects the second pair of connectors to the supply line and the return line of the server rack.
Immersion cooling system for electronics. The electronics are immersed in immersion tank filled with immersion liquid. A universal supply utilizes a supply panel to fill cooled liquid into the tank. Localized supply utilizes a manifold to deliver cooled liquid to specific devices within the tank. Cooled liquid is delivered via connection of the manifold and the flexible hoses to cooling plates mounted onto the devices. Each of the cooling plates has a cavity for passing cooled liquid, a supply inlet connected to one of the flexible hoses, and an outlet hole releasing the liquid into the tank. The cooled liquid is supplied to the universal supply from a main cooler. The cooled liquid is supplied to the manifold from the main cooler or from a secondary cooler. The immersion tank has a single recirculation outlet to return liquid mixed from both the universal supply and the localized supply.
brevets
