Produits et services

Heat, smoke and fire detectors.

Produits et services

Heat, smoke and fire detectors

Abrégé

A particle detector, e.g. a smoke detector is described. In one form the detector includes a detection chamber and radiation source emitting a single beam of radiation. The detector also includes a radiation receiving system and an imaging system arranged to receive radiation from a common region of interest. Methods and systems for analysing the output of a particle detector are also disclosed.

Classes IPC  ?

• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 15/00 - Recherche de caractéristiques de particules; Recherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux
• G01N 15/14 - Recherche par des moyens électro-optiques
• G01N 35/00 - Analyse automatique non limitée à des procédés ou à des matériaux spécifiés dans un seul des groupes ; Manipulation de matériaux à cet effet
• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G08B 17/113 - Déclenchement par la présence de fumée ou de gaz utilisant une chambre d'ionisation pour détecter de la fumée ou du gaz - Détails de structure

Abrégé

A particle detection system (100), such as an active video smoke detection system, includes at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of at least part of a beam (106) from illumination means (102); and means to analyse (107) the captured images to detect the presence of particles within the volume. At least 29 different aspects are described for improving the sensitivity, usability, and robustness of particle detection. These include, for example, configuring illumination means (102) to create a curtain of light or a rapidly-scanned beam across the air volume (110), and configuring a reflector to steer or change direction of a beam reflected from illumination means (102).

Classes IPC  ?

• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G08B 17/12 - Déclenchement par la présence de rayonnement ou de particules, p.ex. de rayonnement infrarouge ou d'ions
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• H04N 5/32 - Transformation des rayons X
• H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c. à d. systèmes dans lesquels le signal vidéo n'est pas diffusé
• G08B 29/18 - Prévention ou correction d'erreurs de fonctionnement

Abrégé

A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.

Classes IPC  ?

• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 21/49 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide
• G01N 15/14 - Recherche par des moyens électro-optiques
• G08B 17/113 - Déclenchement par la présence de fumée ou de gaz utilisant une chambre d'ionisation pour détecter de la fumée ou du gaz - Détails de structure

Abrégé

The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).

Classes IPC  ?

• G08B 17/00 - Alarmes d'incendie; Alarmes réagissant à une explosion
• G01N 21/49 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide
• G01S 17/02 - Systèmes utilisant la réflexion d'ondes électromagnétiques autres que les ondes radio
• G01S 17/87 - Combinaisons de systèmes utilisant des ondes électromagnétiques autres que les ondes radio
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G08B 17/12 - Déclenchement par la présence de rayonnement ou de particules, p.ex. de rayonnement infrarouge ou d'ions
• G08B 29/24 - Auto-étalonnage, p.ex. pour la correction de la dérive ambiante ou du vieillissement de composants
• G08B 25/10 - Systèmes d'alarme dans lesquels l'emplacement du lieu où existe la condition déclenchant l'alarme est signalé à une station centrale, p.ex. systèmes télégraphiques d'incendie ou de police caractérisés par le moyen de transmission utilisant des systèmes de transmission sans fil
• G08B 17/103 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière
• G01S 7/487 - Extraction des signaux d'écho désirés
• G08B 29/04 - Surveillance des circuits détecteurs
• G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné
• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G01N 15/14 - Recherche par des moyens électro-optiques
• G08B 17/117 - Déclenchement par la présence de fumée ou de gaz en utilisant un dispositif de détection pour des gaz spécifiques, p.ex. des produits de combustion, produits par l'incendie
• G08B 29/18 - Prévention ou correction d'erreurs de fonctionnement
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G01S 17/95 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la météorologie

Abrégé

A beam detector including a light source, a receiver, and a target, acting in cooperation to detect particles in a monitored area. The target reflects incident light, resulting in reflected light being returned to receiver. The receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector emits a first light beam in a first wavelength band; a second light beam in a second wavelength band; and a third light beam in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.

Classes IPC  ?

• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 15/14 - Recherche par des moyens électro-optiques
• F21K 9/00 - Sources lumineuses utilisant des dispositifs à semi-conducteurs en tant qu’éléments générateurs de lumière, p.ex. utilisant des diodes électroluminescentes [LED] ou des lasers
• G01N 15/10 - Recherche de particules individuelles

Abrégé

There is described a duct detector (1) and components (2, 3, 6) for duct detectors. In one form the duct detector (1) includes: a port unit (3) and detector unit (2). The port unit (3) is mountable to a duct in use so as to position one or more ports in the duct. The detector unit (2) includes a detection region. The port unit (3) and detector unit (2) are reconfigurable between a close coupled configuration and a separated configuration in which the units (2,3) are mountable with a variable separation between them and coupled by one or more elongate conduits (12A, 12B) to provide fluid communication between the units (2,3).

Classes IPC  ?

• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• F16L 55/00 - Dispositifs ou accessoires à utiliser avec, ou en liaison avec, les tuyaux ou les systèmes de tuyaux
• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G01N 1/26 - Dispositifs pour prélever des échantillons à l'état gazeux avec mesures prises pour l'aspiration à partir de plusieurs endroits
• G08B 17/117 - Déclenchement par la présence de fumée ou de gaz en utilisant un dispositif de détection pour des gaz spécifiques, p.ex. des produits de combustion, produits par l'incendie
• G08B 17/113 - Déclenchement par la présence de fumée ou de gaz utilisant une chambre d'ionisation pour détecter de la fumée ou du gaz - Détails de structure

Abrégé

A particle detector, e.g. a smoke detector is described. In one form the detector includes a detection chamber and radiation source emitting a single beam of radiation. The detector also includes a radiation receiving system and an imaging system arranged to receive radiation from a common region of interest. Methods and systems for analyzing the output of a particle detector are also disclosed.

Classes IPC  ?

• G01N 15/00 - Recherche de caractéristiques de particules; Recherche de la perméabilité, du volume des pores ou de l'aire superficielle effective de matériaux poreux
• G01N 17/00 - Recherche de la résistance des matériaux aux intempéries, à la corrosion ou à la lumière
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G08B 17/113 - Déclenchement par la présence de fumée ou de gaz utilisant une chambre d'ionisation pour détecter de la fumée ou du gaz - Détails de structure
• G01N 15/14 - Recherche par des moyens électro-optiques
• G01N 35/00 - Analyse automatique non limitée à des procédés ou à des matériaux spécifiés dans un seul des groupes ; Manipulation de matériaux à cet effet

Abrégé

A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 21/49 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide
• G08B 17/113 - Déclenchement par la présence de fumée ou de gaz utilisant une chambre d'ionisation pour détecter de la fumée ou du gaz - Détails de structure

Abrégé

An apparatus and methods for detecting the presence of gases is described. The gas detection apparatus includes, a housing adapted to be in fluid communication with a duct of a particle detection system, and at least one gas detector sensitive to a target species arranged in fluid communication with the housing to detect the presence of the target species in at least part of the air sample flowing in a duct. In one form the gas detection apparatus forms part of a system for detecting a condition in an environment that includes, a particle detector; a duct system in fluid communication with the environment and the particle detector and an aspirator to draw an air sample flow from the environment to the particle detector.

Classes IPC  ?

• G08B 17/117 - Déclenchement par la présence de fumée ou de gaz en utilisant un dispositif de détection pour des gaz spécifiques, p.ex. des produits de combustion, produits par l'incendie
• G01N 37/00 - RECHERCHE OU ANALYSE DES MATÉRIAUX PAR DÉTERMINATION DE LEURS PROPRIÉTÉS CHIMIQUES OU PHYSIQUES - Détails non couverts par les autres groupes de la présente sous-classe
• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G08B 21/14 - Alarmes réagissant aux gaz toxiques
• G08B 29/22 - Dispositions pour faciliter l'étalonnage manuel, p.ex. dispositions d'entrée ou de sortie pour les tests; Maintien de valeurs intermittentes permettant la mesure
• F24F 11/00 - Aménagements de commande ou de sécurité

Abrégé

A method of detecting particles in an air flow is described. The method includes receiving a signal indicative of light intensity scattered from the air flow at a plurality of wavelengths and processing the signal indicative of the intensity of received light at each of the wavelengths and a corresponding wavelength dependent parameter to generate an output signal indicative of at least one characteristic of particles in the air flow. A particle detection system is also described.

Classes IPC  ?

• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G08B 29/26 - Auto-étalonnage, p.ex. pour la correction de la dérive ambiante ou du vieillissement de composants par mise à jour et emmagasinage de seuils de référence
• G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G01N 15/14 - Recherche par des moyens électro-optiques
• G01N 21/47 - Dispersion, c. à d. réflexion diffuse

Abrégé

A beam detector including a light source, a receiver, and a target, acting in cooperation to detect particles in a monitored area. The target reflects incident light, resulting in reflected light being returned to receiver. The receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector emits a first light beam in a first wavelength band; a second light beam in a second wavelength band; and a third light beam in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 15/14 - Recherche par des moyens électro-optiques
• F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G01N 15/10 - Recherche de particules individuelles

Abrégé

A method of determining at least one point of entry of smoke into a smoke detection system, the system having a sampling pipe network including at least one sampling pipe and a plurality of sampling inlets through which an air sample can enter the at least one sampling pipe of the smoke detection system for analysis by a particle detector, said method including: determining a volume of sample air that has passed through at least part of the smoke detection system since a predetermined event or a value corresponding to said volume; and determining through which sampling inlet of the plurality of sampling inlets the smoke entered the smoke detection system based, at least in part, on the determined volume or value. Systems for implementing such a method and related methods are also described.

Classes IPC  ?

• G01F 1/66 - Mesure du débit volumétrique ou du débit massique d'un fluide ou d'un matériau solide fluent, dans laquelle le fluide passe à travers un compteur par un écoulement continu en mesurant la fréquence, le déphasage, le temps de propagation d'ondes électromagnétiques ou d'autres types d'ondes, p.ex. en utilisant des débitmètres à ultrasons
• G01N 15/14 - Recherche par des moyens électro-optiques

Abrégé

A particle detection system (100), such as an active video smoke detection system, includes at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of at least part of a beam (106) from illumination means (102); and means to analyze (107) the captured images to detect the presence of particles within the volume. At least 29 different aspects are described for improving the sensitivity, usability, and robustness of particle detection. These include, for example, configuring illumination means (102) to create a curtain of light or a rapidly-scanned beam across the air volume (110), and configuring a reflector to steer or change direction of a beam reflected from illumination means (102).

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G08B 17/12 - Déclenchement par la présence de rayonnement ou de particules, p.ex. de rayonnement infrarouge ou d'ions
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• H04N 5/32 - Transformation des rayons X
• H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c. à d. systèmes dans lesquels le signal vidéo n'est pas diffusé
• G08B 29/18 - Prévention ou correction d'erreurs de fonctionnement

Abrégé

The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).

Classes IPC  ?

• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G01N 21/49 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide
• G01S 17/02 - Systèmes utilisant la réflexion d'ondes électromagnétiques autres que les ondes radio
• G01S 17/87 - Combinaisons de systèmes utilisant des ondes électromagnétiques autres que les ondes radio
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G08B 17/12 - Déclenchement par la présence de rayonnement ou de particules, p.ex. de rayonnement infrarouge ou d'ions
• G08B 29/24 - Auto-étalonnage, p.ex. pour la correction de la dérive ambiante ou du vieillissement de composants
• G08B 25/10 - Systèmes d'alarme dans lesquels l'emplacement du lieu où existe la condition déclenchant l'alarme est signalé à une station centrale, p.ex. systèmes télégraphiques d'incendie ou de police caractérisés par le moyen de transmission utilisant des systèmes de transmission sans fil
• G08B 17/103 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière
• G01S 7/487 - Extraction des signaux d'écho désirés
• G08B 29/04 - Surveillance des circuits détecteurs
• G01N 21/17 - Systèmes dans lesquels la lumière incidente est modifiée suivant les propriétés du matériau examiné
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G01S 17/95 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la météorologie

Abrégé

A particle detector, e.g. a smoke detector is described. In one form the detector includes a detection chamber and radiation source emitting a single beam of radiation. The detector also includes a radiation receiving system and an imaging system arranged to receive radiation from a common region of interest. Methods and systems for analysing the output of a particle detector are also disclosed.

Classes IPC  ?

• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée

Abrégé

A beam detector including a light source, a receiver, and a target, acting in cooperation to detect particles in a monitored area. The target reflects incident light, resulting in reflected light being returned to receiver. The receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector emits a first light beam in a first wavelength band; a second light beam in a second wavelength band; and a third light beam in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• F21K 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 15/14 - Recherche par des moyens électro-optiques
• G01N 15/10 - Recherche de particules individuelles

Abrégé

A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 21/49 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules

Abrégé

A surveillance system (10) for monitoring movement in a region of interest (18) is described. The surveillance system (10) includes: An image capturing system (12) having a field of view (16) including a region of interest (18), and adapted to capture an image of the region of interest (18). An image processing system (78) configured to process a time-sequential series of images of the field of view from the image capturing system such that at least a portion (52, 53, 54) of each processed image (50) is analyzed for detecting movement within the region of interest (18). The image capturing system (12) is configured to capture, in each image, different apparent magnifications of respective zones (20, 22, 24) within the region of interest (18) in the field of view (16) that are at different distances from the image capturing system (12) such that an object (60) in at least one position in at least two of said zones has substantially the same apparent size in the images.

Classes IPC  ?

• H04N 7/00 - Systèmes de télévision
• G08B 13/196 - Déclenchement influencé par la chaleur, la lumière, ou les radiations de longueur d'onde plus courte; Déclenchement par introduction de sources de chaleur, de lumière, ou de radiations de longueur d'onde plus courte utilisant des systèmes détecteurs de radiations passifs utilisant des systèmes de balayage et de comparaison d'image utilisant des caméras de télévision
• H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c. à d. systèmes dans lesquels le signal vidéo n'est pas diffusé

Produits et services

Electronic air pollution monitoring equipment comprised of, smoke detectors, and fire detectors; smoke detection monitors; sub-systems used to control, actuate, and monitor such equipment, namely, actuators, monitors, and suppression release devices; electronically controlled fire alarm systems comprised of computer hardware, software, electronic controls, and input and output devices, namely, fire alarm control panels and environmental monitoring and control panels; electronically controlled fire prevention systems comprised of computer hardware; [ electronic devices for use in security and surveillance and for use in the monitoring and control of security systems, namely, cameras, monitors, alarms, digital video and audio recorders, alarm panels, input and output devices in the nature of keyboards and touch screens, displays, control panels, and software used to control and monitor such apparatus; apparatus for recording or reproducing sounds and images; apparatus for recording, processing, or transmitting of security or surveillance data; voice notification and evacuation alarm equipment and systems comprising amplifiers, speakers, electrical controllers, displays, control panels, paging touch panels, audio input electric control panels, multiplexors, mixers, and the routers and servers used to allow these devices to intercommunicate data and audio information; anti-intrusion alarms and perimeter protection systems comprised of motion detectors, motion activated cameras and motion sensitive security lights; access control systems comprising card readers for magnetically encoded cards and biometric identification apparatus, door control equipment in the nature of a biometric fingerprint door lock, and video and infrared image analyzers; passive infrared detectors, not for medical purposes; electronically operated remote speed sensing apparatus; remote electronic speed recorders and indicators ]

Produits et services

Electronic air pollution monitoring equipment comprised of air pollution monitors, airborne particle detectors, gas detectors, chemical-hazard detectors, smoke detectors, and fire detectors; Smoke detection monitors; Active fire suppression and extinguishing equipment comprising water sprinklers, water misting systems, chemical clean agents, inert gases, and the sub-systems used to control, actuate, and monitor such equipment, namely, actuators, monitors, and suppression release devices; Gas detectors and the systems used to control and monitor such equipment; Flame detectors and the systems used to control and monitor such equipment; Electronically controlled fire alarm systems comprised of computer hardware, software, electronic controls, and input and output devices, namely, fire alarm control panels and environmental monitoring and control panels; Electronically controlled fire prevention systems comprising fire-suppressive and fire-preventative gas agents and total flooding agents to reduce hypoxic oxygen; Electronic devices for use in security and surveillance and for use in the monitoring and control of security systems, namely, cameras, monitors, alarms, digital video and audio recorders, alarm panels, input and output devices, displays, control panels, and software used to control and monitor such apparatus; Apparatus for recording or reproducing sounds and images; Apparatus for recording, producing, or transmitting of security or surveillance data; Voice notification and evacuation alarm equipment and systems comprising amplifiers, speakers, controllers, displays, control panels, paging panels, audio input panels, multiplexors, mixers, and the networks used to allow these devices to intercommunicate data and audio information Amplifiers, namely, voice transmitting apparatus, speakers, microphones, digital amplifiers, electric amplifiers, sound amplifiers, image amplifiers, and audio induction loop amplifiers; Anti-intrusion alarms and perimeter protection systems; Access control equipment and systems comprising card and biometric readers, door control equipment, and video and infrared image analyzers; Passive infrared detectors; Electronically operated remote speed sensing apparatus; Remote speed recorders and indicators; Vehicle traffic data acquisition systems and apparatus comprised of microwave, radar, ultrasonic, and passive infrared sensors; Speed checking apparatus for vehicles; Vehicle counting and detector systems used for vehicle detection, counting, and length and height determinations for the classification of vehicles, comprised of microwave, radar, ultrasonic, and passive infrared sensors; Detectors for use in traffic management systems and intersection control systems for detecting vehicles such as bicycles, cars, vans, lorries, trucks, and buses; Apparatus for remotely metering vehicle speed; Parts for the foregoing products; Computer hardware and software used to control and monitor all the foregoing equipment and systems.

Abrégé

The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).

Classes IPC  ?

• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G01N 21/49 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide
• G01S 17/02 - Systèmes utilisant la réflexion d'ondes électromagnétiques autres que les ondes radio
• G01S 17/87 - Combinaisons de systèmes utilisant des ondes électromagnétiques autres que les ondes radio
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G08B 17/12 - Déclenchement par la présence de rayonnement ou de particules, p.ex. de rayonnement infrarouge ou d'ions
• G08B 29/24 - Auto-étalonnage, p.ex. pour la correction de la dérive ambiante ou du vieillissement de composants
• G08B 25/10 - Systèmes d'alarme dans lesquels l'emplacement du lieu où existe la condition déclenchant l'alarme est signalé à une station centrale, p.ex. systèmes télégraphiques d'incendie ou de police caractérisés par le moyen de transmission utilisant des systèmes de transmission sans fil
• G08B 17/103 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière
• G01S 7/487 - Extraction des signaux d'écho désirés
• G08B 29/04 - Surveillance des circuits détecteurs
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G01S 17/95 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la météorologie

Produits et services

Systems and equipment for monitoring air pollution and airborne particle detection comprising air pollution monitors, airborne particle detectors, gas detectors, explosive hazard detectors, smoke detectors, and fire detectors; systems and equipment for smoke detection comprising smoke detection monitors; smoke and fire detectors; fire alarms; fire alarm control panels; fire suppression systems comprising water sprinklers, water misting systems, chemical clean agents, inert gases, and the sub-systems used to control, actuate, and monitor such equipment, namely, actuators, monitors, and suppression release devices; structural parts for all of the foregoing; gas detection, bio-hazards detection and smoke detection systems comprising computer software and hardware, electronic controls, and input and output devices, namely, fire alarm control panels, environmental monitoring and control panels; structural parts for all of the foregoing; control systems related to the protection of property from fire comprising input devices for computers, output devices for computers, and computer software and hardware; structural parts for all of the foregoing; fire prevention systems comprising fire-suppressive and fire preventative gas agents and total flooding agents to reduce hypoxic oxygen; computer software used to control and monitor all the foregoing equipment and systems; application software used to control and monitor all the foregoing equipment and systems

Produits et services

(1) Electronic air pollution monitoring equipment, namely air pollution monitors and airborne particle detectors; systems and equipment for smoke detection namely smoke and fire detectors; fire alarms; fire alarm control panels; fire suppression systems namely fire sprinklers and fire extinguishers; parts for all of the foregoing; electronic monitoring detectors for gas leak detection, bio-hazards leak detection and smoke detection; computer software for controlling and operating air pollution monitors, airborne particle detectors, smoke and fire detectors, fire alarms, fire suppression systems namely fire sprinklers and fire extinguishers and electronic monitoring detectors for gas leak detection, bio-hazards leak detection and smoke detection; computer hardware; parts and accessories for air pollution monitors, airborne particle detectors, smoke and fire detectors, fire alarms, fire suppression systems namely fire sprinklers and fire extinguishers and electronic monitoring detectors for gas leak detection, bio-hazards leak detection and smoke detection; control systems related to the protection of property from fire namely electrical control systems for air pollution monitors, airborne particle detectors, smoke and fire detectors, fire alarms, fire suppression systems namely fire sprinklers and fire extinguishers and electronic monitoring detectors for gas leak detection, bio-hazards leak detection and smoke detection; electronically controlled fire prevention systems, namely fire preventative gas agents and total flooding agents to reduce oxygen (hypoxic). (2) Electronic air pollution monitoring equipment, namely air pollution monitors and airborne particle detectors; systems and equipment for smoke detection namely smoke and fire detectors; fire alarms; parts for all of the foregoing; electronic monitoring detectors for gas leak detection, bio-hazards leak detection and smoke detection; computer software for controlling and operating air pollution monitors, airborne particle detectors, smoke and fire detectors, fire alarms, and electronic monitoring detectors for gas leak detection, bio-hazards leak detection and smoke detection; computer hardware; parts and accessories for air pollution monitors, airborne particle detectors, smoke and fire detectors, fire alarms, and electronic monitoring detectors for gas leak detection, bio-hazards leak detection and smoke detection; control systems related to the protection of property from fire namely electrical control systems for air pollution monitors, airborne particle detectors, smoke and fire detectors, fire alarms, and electronic monitoring detectors for gas leak detection, bio-hazards leak detection and smoke detection.

Produits et services

Systems and equipment for monitoring air pollution and airborne particle detection; systems and equipment for smoke detection; smoke and fire detectors; fire alarms; fires panels; fire suppression systems; parts for all of the foregoing; gas detection, bio-hazards detection and smoke detection systems, devices and equipment and software, hardware, parts of and accessories for such systems, devices and equipment; control systems related to the protection of property from fire including input devices, output devices and other control devices and equipment, and software, hardware, parts of and accessories for such systems, devices and equipment; fire prevention systems; computer software; application software.

Abrégé

A sensing system and method for detecting particles in an air volume includes a main airflow path including an inlet from the air volume. Also included is a collection site within the main airflow path. The collection site is for drawing an air sample from the main airflow path. Additionally the system includes a means to induce a localized increase in particle speed at the collection site relative to air speed along the remainder of the main airflow path. The means to induce a localized increase includes an auxiliary airflow path from the main airflow path. The auxiliary airflow path has an exit upstream of the collection site. In an alternative form of the invention, the means to induce the localized increase in particle speed at the collection site comprises a venturi in the main airflow path with the collection site being disposed along the venturi.

Classes IPC  ?

• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz

Abrégé

There is described a filter arrangement for a particle detector for detecting particles in an environment. The particle detector can include one or more sensors for analyzing fluid in a detection region to produce sensor output. The filter arrangement includes structure defining flow paths, for conveying fluid from the environment towards the detection region, including a first flow path, which includes a filter, and a second flow path bypassing the filter. There is also provided a mechanism for controlling relative flow rates of fluid through the first flow path and the second flow path and a controller configured to receive the sensor output corresponding to at least two relative flow rates and apply logic thereto to generate an output indicative of a condition of the filter.

Classes IPC  ?

• G01N 15/06 - Recherche de la concentration des suspensions de particules
• G01N 1/22 - Dispositifs pour prélever des échantillons à l'état gazeux
• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G08B 17/113 - Déclenchement par la présence de fumée ou de gaz utilisant une chambre d'ionisation pour détecter de la fumée ou du gaz - Détails de structure

Abrégé

A particle detector including a chamber, a first aspirator, a sensor(s), a controller and clean air supply. The controller, when in a detecting mode, receives an indicative signal from the sensor and applies logic to the indicative signal to generate a further signal, and when in the purge mode controls substantial purging of the chamber of sample fluid with clean fluid from the clean fluid supply. The controller receives the indicative signal when the chamber is so purged and if necessary adjusts the logic in response thereto.

Classes IPC  ?

• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G08B 21/00 - Alarmes réagissant à une seule condition particulière, indésirable ou anormale, et non prévues ailleurs
• G08B 23/00 - Alarmes réagissant à des conditions indésirables ou anormales, non spécifiées
• G05B 23/02 - Test ou contrôle électrique
• G08B 5/22 - Systèmes de signalisation optique, p.ex. systèmes d'appel de personnes, indication à distance de l'occupation de sièges utilisant une transmission électromécanique
• H04Q 1/30 - Dispositions pour la signalisation; Gestion des courants de signalisation
• G08C 19/16 - Systèmes de transmission de signaux électriques dans lesquels la transmission est par impulsions
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 29/24 - Auto-étalonnage, p.ex. pour la correction de la dérive ambiante ou du vieillissement de composants

Abrégé

A beam detector (10) including a light source (32), a receiver (34), and a target (36), acting in co-operation to detect particles in a monitored area (38). The target (36), reflects incident light (40), resulting in reflected light (32) being returned to receiver (34). The receiver (34) is a receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector (10) emits a first light beam (3614) in a first wavelength band; a second light beam (3618) in a second wavelength band; and a third light beam (3616) in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 15/14 - Recherche par des moyens électro-optiques
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée

Abrégé

An apparatus and methods for detecting the presence of gases is described. The gas detection apparatus includes, a housing adapted to be in fluid communication with a duct of a particle detection system, and at least one gas detector sensitive to a target species arranged in fluid communication with the housing to detect the presence of the target species in at least part of the air sample flowing in a duct. In one form the gas detection apparatus forms part of a system for detecting a condition in an environment that includes, a particle detector; a duct system in fluid communication with the environment and the particle detector and an aspirator to draw an air sample flow from the environment to the particle detector.

Classes IPC  ?

• G08B 17/117 - Déclenchement par la présence de fumée ou de gaz en utilisant un dispositif de détection pour des gaz spécifiques, p.ex. des produits de combustion, produits par l'incendie
• G01N 37/00 - RECHERCHE OU ANALYSE DES MATÉRIAUX PAR DÉTERMINATION DE LEURS PROPRIÉTÉS CHIMIQUES OU PHYSIQUES - Détails non couverts par les autres groupes de la présente sous-classe
• G08B 21/14 - Alarmes réagissant aux gaz toxiques
• G08B 29/22 - Dispositions pour faciliter l'étalonnage manuel, p.ex. dispositions d'entrée ou de sortie pour les tests; Maintien de valeurs intermittentes permettant la mesure
• F24F 11/00 - Aménagements de commande ou de sécurité

Abrégé

A method of detecting particles in an air flow is described. The method includes receiving a signal indicative of light intensity scattered from the air flow at a plurality of wavelengths and processing the signal indicative of the intensity of received light at each of the wavelengths and a corresponding wavelength dependent parameter to generate an output signal indicative of at least one characteristic of particles in the air flow. A particle detection system is also described.

Classes IPC  ?

• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G08B 29/26 - Auto-étalonnage, p.ex. pour la correction de la dérive ambiante ou du vieillissement de composants par mise à jour et emmagasinage de seuils de référence
• G01N 21/47 - Dispersion, c. à d. réflexion diffuse

Abrégé

A particle detection system including; at least one light source adapted to illuminate a volume being monitored at at least two wavelengths; a receiver having a field of view and being adapted to receive light from at least one light source after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor associated with the receiver adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G01N 15/02 - Recherche de la dimension ou de la distribution des dimensions des particules
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée

Abrégé

There is describes a filter arrangement (10) for a particle detector (12) for detecting particles in an environment. The particle detector (12) can include one or more sensors (30) for analysing fluid in a detection region to produce sensor output. The filter arrangement (30) includes structure defining flow paths, for conveying fluid from the environment towards the detection region, including a first flow path (22), which includes a filter(26), and a second flow path (24) bypassing the filter(10). There is also provided a mechanism (120B) for controlling relative flow rates of fluid through the first flow path (22) and the second flow path (24) and a controller (32) configured to receive the sensor output corresponding to at least two relative flow rates and apply logic thereto to generate an output indicative of a condition of the filter.

Classes IPC  ?

• B01D 46/42 - Equipement auxiliaire ou son utilisation
• G08B 17/113 - Déclenchement par la présence de fumée ou de gaz utilisant une chambre d'ionisation pour détecter de la fumée ou du gaz - Détails de structure

Abrégé

A particle detection system (100), such as an active video smoke detection system, includes at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of at least part of a beam (106) from illumination means (102); and means to analyze (107) the captured images to detect the presence of particles within the volume. At least 29 different aspects are described for improving the sensitivity, usability, and robustness of particle detection. These include, for example, configuring illumination means (102) to create a curtain of light or a rapidly-scanned beam across the air volume (110), and configuring a reflector to steer or change direction of a beam reflected from illumination means (102).

Classes IPC  ?

• G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
• G08B 17/12 - Déclenchement par la présence de rayonnement ou de particules, p.ex. de rayonnement infrarouge ou d'ions
• G01N 15/06 - Recherche de la concentration des suspensions de particules

Produits et services

Electrical/electronic apparatus and equipment  for transmitting video and audio data, in particular for security purposes; multi camera displays; video monitors; video recorders; alarm generator devices, namely switches and sensors, alarm signal generators and transmitters; video signal analysis equipment; video storage and retrieval devices; passive infrared sensors; electronic, electromagnetic, thermal and proximity detectors; alarm panels namely, remote alarm panels and monitoring systems; CCTV equipments and cameras; data processing apparatus and computer software for surveillance and security detection devices and systems; intercommunication apparatus; remote control apparatus; alarms, anti-theft warning apparatus; electronic security/surveillance apparatus and equipment included in this class; parts and fittings for all the aforesaid goods. Installing, maintenance including review of performance and reliability, and repair of alarm systems. Services for the protection of property and individuals; monitoring of alarm systems; surveillance and security consultation services.

Abrégé

A particle detector (10) including a chamber (12), a first aspirator (14), a sensor(s) (28), a controller (20) and clean air supply (18). The controller, when in a detecting mode, receives an indicative signal from the sensor and applies logic to the indicative signal to generate a further signal (22), and when in the purge mode controls substantial purging of the chamber of sample fluid with clean fluid from the clean fluid supply. The controller receives the indicative signal when the chamber is so purged and if necessary adjusts the logic in response thereto.

Classes IPC  ?

• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée

Abrégé

An apparatus and methods for detecting the presence of gases is described. The gas detection apparatus (10, 510) includes, a housing (30) adapted to be in fluid communication with a duct (504) of a particle detection system (500), and at least one gas detector (42, 43) sensitive to a target species arranged in fluid communication with the housing (30) to detect the presence of the target species in at least part of the air sample flowing in a duct (504). In one form the gas detection apparatus (10, 510) forms part of a system (700) for detecting a condition in an environment that includes, a particle detector (502); a duct system (504) in fluid communication with the environment and the particle detector (504) and an aspirator (518) to draw an air sample flow (72) from the environment to the particle detector (502).

Classes IPC  ?

• G01N 1/26 - Dispositifs pour prélever des échantillons à l'état gazeux avec mesures prises pour l'aspiration à partir de plusieurs endroits
• F24F 11/30 - Aménagements de commande ou de sécurité en relation avec le fonctionnement du système, p.ex. pour la sécurité ou la surveillance
• G08B 17/117 - Déclenchement par la présence de fumée ou de gaz en utilisant un dispositif de détection pour des gaz spécifiques, p.ex. des produits de combustion, produits par l'incendie
• G08B 21/16 - Alarmes réagissant aux gaz combustibles

Abrégé

A beam detector (10) including a light source (32), a receiver (34), and a target (36), acting in co-operation to de-tect particles in a monitored area (38). The target (36), reflects incident light (40), resulting in reflected light (32) being returned to receiver (34). The receiver (34) is a receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector (10) emits a first light beam (3614) in a first wavelength band; a second light beam (3618) in a second wavelength band; and a third light beam (3616) in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.

Classes IPC  ?

• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée

Abrégé

A beam detector (10) including a light source (32), a receiver (34), and a target (36), acting in cooperation to detect particles in a monitored area (38). The target (36), reflects incident light (40), resulting in reflected light (32) being returned to receiver (34). The receiver (34) is a receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector (10) emits a first light beam (3614) in a first wavelength band; a second light beam (3618) in a second wavelength band; and a third light beam (3616) in a third wavelength band, wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.

Classes IPC  ?

• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée

Produits et services

Systems, devices and equipment for air pollution monitoring and smoke detection;   and software, hardware, parts of and accessories for such systems, devices and equipment; control systems related to the protection of property from fire including input devices, output devices and other control devices and equipment; and software, hardware, parts of and accessories for such systems, devices and equipment.

Abrégé

A filter arrangement for removing impurities from a fluid is disclosed, the filter arrangement (10) includes a plurality of screen portions (18, 20) through which the fluid passes. The screen portions include a first screen portion (18) and a second screen portion (20) separated by a predetermined distance. The predetermined distance can be determined on the basis of a threshold particle length. In one form the filter arrangement (10) is mounted in a housing (16) which is configured to receive two filter elements (18, 20) arranged in a nested configuration. A particle detector using the filter is described.

Classes IPC  ?

• B01D 50/00 - Combinaisons de procédés ou de dispositifs pour la séparation de particules de gaz ou de vapeurs

Abrégé

A particle detection system 600 including; at least one light source (606) adapted to illuminate a volume being monitored (610) at at least two wavelengths; a receiver (604) having a field of view (620) and being adapted to receive light from at least one light source (606, 607) after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor (624) associated with the receiver (604) adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light re-ceived at the two wavelengths.

Classes IPC  ?

• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée

Abrégé

A particle detection system 600 including; at least one light source (606) adapted to illuminate a volume being monitored (610) at at least two wavelengths; a receiver (604) having a field of view (620) and being adapted to receive light from at least one light source (606, 607) after said light has traversed the volume being monitored and being adapted to generate signals indicative of the intensity of light received at regions within the field of view of the receiver; a processor (624) associated with the receiver (604) adapted to process the signals generated by the receiver to correlate light received at at least two wavelengths in corresponding regions within the field of view of the receiver and generate an output indicative of the relative level of light received at the two wavelengths.

Classes IPC  ?

• G08B 17/103 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière

Produits et services

(1) Anti-intrusion burglar alarms; perimeter intrusion detectors and alarms; personal security and burglar alarms; passive infrared detectors; electronically operated remote speed sensing apparatus, remote speed recorders and indicators, traffic data acquisition systems and apparatus using microwave, ultrasonic and passive infrared sensors, speed checking apparatus for vehicles, namely electronic speed controllers and electronic speed monitors for automobiles, motorcycles and trucks; vehicle counting and detector system, vehicle type detection system including length and height of vehicle determination; detectors for use in traffic management systems and intersection control systems; apparatus for remotely metering vehicle speed.

Produits et services

(1) Anti-intrusion burglar alarms; perimeter intrusion detectors and alarms; personal security and burglar alarms; passive infrared detectors; electronically operated remote speed sensing apparatus, remote speed recorders and indicators, traffic data acquisition systems and apparatus using microwave, ultrasonic and passive infrared sensors, speed checking apparatus for vehicles, namely electronic speed controllers and electronic speed monitors for automobiles, motorcycles and trucks; vehicle counting and detector system, vehicle type detection system including length and height of vehicle determination; detectors for use in traffic management systems and intersection control systems; apparatus for remotely metering vehicle speed.

Produits et services

Protection and surveillance equipment with alarm capability; passive infrared detectors; electronically operated remote speed sensing apparatus, remote speed recorders and indicators, traffic data acquisition systems and apparatus using microwave, ultrasonic and passive infrared sensors, speed checking apparatus for vehicles; vehicle counting and detector system, vehicle type detection system including length and height of vehicle determination; detectors for use in traffic management systems and intersection control systems; apparatus for remotely metering vehicle speed.

Produits et services

Protection and surveillance equipment with alarm capability; passive infrared detectors; electronically operated remote speed sensing apparatus, remote speed recorders and indicators, traffic data acquisition systems and apparatus using microwave, ultrasonic and passive infrared sensors, speed checking apparatus for vehicles; vehicle counting and detector system, vehicle type detection system including length and height of vehicle determination; detectors for use in traffic management systems and intersection control systems; apparatus for remotely metering vehicle speed.

Produits et services

(1) Electronic air pollution monitoring equipment, namely air pollution monitors, airborne particle detectors, gas detectors, chemical hazard detectors, bio-hazard detectors, radiological and nuclear hazard detectors, explosive hazard detectors, smoke detectors, fire detectors and parts thereof; smoke detectors, smoke detection monitors; fire detectors; fire alarms; fire control and indicating equipment, namely fire alarm panels, environmental monitoring and control panels, fire system input and output devices, displays and control systems, and the systems used to control and monitor such equipment and systems; active fire suppression and extinguishing equipment, namely water sprinkler, water mister, chemical clean agents and inert gases, and the sub-systems used to control actuate and monitor such equipment, namely actuation devices and suppression release devices and parts thereof; gas detectors and flame detectors, and the systems used to control and monitor such equipment; bio-hazard detectors, bio-hazard detection monitors, and parts thereof and computer hardware and software used to control and monitor all the foregoing equipment and systems; electronically controlled fire prevention systems, namely fire suppressive and fire preventative gas agents and total flooding agents to reduce oxygen (hypoxic); security and surveillance cameras, security surveillance monitors, security and surveillance alarms, digital video and audio recorders for security systems; security and surveillance alarm panels and related control and security and surveillance indicating equipment, security and surveillance input and output devices, displays and control systems, and the systems used to control and monitor such equipment and systems; audio cassette, videocassette and digital audio and video recorders for recording, production or transmission of security or surveillance data; voice notification and evacuation alarm equipment and systems, namely amplifiers, speakers, controllers, display and control panels, paging panels; audio input panels, multiplexes and mixers and the computer networks to allow these devices to intercommunicate data and audio; amplifiers, namely public address amplifiers, digital amplifiers, electric amplifiers, sound amplifiers, image amplifiers and audio induction loop amplifiers, loudspeakers; computer hardware; alarm installations and alarms, namely burglar alarms, fire alarms, personal security alarms, anti-intrusion warning alarms and perimeter protection security alarms; electronic security systems, namely security and surveillance cameras, security and surveillance monitors and parts thereof; anti intrusion burglar alarms; perimeter intrusion detectors and alarms; personal security and burglar alarms; passive infrared detectors; electronically operated remote speed sensing apparatus, remote speed recorders and indicators, traffic data acquisition systems and apparatus using microwave, ultrasonic and passive infrared sensors, speed checking apparatus for vehicles; vehicle counting and detector system, vehicle type detection system including length and height of vehicle determination; detectors for use in traffic management systems and intersection control systems; apparatus for remotely metering vehicle speed.

Abrégé

There are described systems for improving the sensitivity, usability, and robustness of particle detection systems (100) adapted to detect particles directly in a volume (110) being monitored, the system (100) including at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of a least part of a beam (106) from an illumination means (102); and means to analyse (107) the captured images to detect the presence of particles within the volume on the basis of radiation captured in the images.

Classes IPC  ?

• G01M 11/02 - Test des propriétés optiques

Abrégé

There are described systems for improving the sensitivity, usability, and robustness of particle detection systems (100) adapted to detect particles directly in a volume (110) being monitored, the system (100) including at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of a least part of a beam (106) from an illumination means (102); and means to analyse (107) the captured images to detect the presence of particles within the volume on the basis of radiation captured in the images.

Classes IPC  ?

• G01N 21/53 - Dispersion, c. à d. réflexion diffuse dans un corps ou dans un fluide dans un courant de fluide, p.ex. dans la fumée
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée

Abrégé

ABSTRACT There are described systems for improving the sensitMty, usability, and robustness of particle detection systems (100) adapted to detect particles directly in a volume (110) being monitored, the system (100) including at least one illumination means (102) for directing a beam (106) of radiation through at least part of the air volume being monitored (110), an image sensor (104) is positioned to capture images of a least part of a beam (106) from an illumination means (102); and means to analyse (107) the captured images to detect the presence of particles within the volume on the basis of radiation captured in the images. CA 3103000 2020-12-17

Classes IPC  ?

• G01N 15/10 - Recherche de particules individuelles
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée
• G08B 29/04 - Surveillance des circuits détecteurs

Produits et services

Printed matter, none relating to the law/or legal services; instructional and teaching material (except apparatus) for the training, auditing, commissioning, maintenance and system design of systems, devices, equipment and control systems for air pollution monitoring, smoke detection, and systems, devices, equipment and control systems related to the protection of property from fire. Audit of alarm systems including a review of the degree to which they meet performance and safety standards, storage and processing of information and data relating to alarm systems. Commissioning, installation, maintenance including review of performance and reliability, and repair of alarm systems. Communications including transmission and reception of alarm system messages by digital electronic devices, computer terminals and network devices; provision of access to databases relating to alarm systems allowing the retrieval of data and information. Education, providing of training, arranging and conducting of workshops and seminars and practical training and demonstration of commissioning, auditing, system design and maintenance of alarm systems; excluding services offered by a bar association and legal services. Security services for the protection of property and individuals, monitoring of alarm systems and security consultancy; provision of information relating to alarm systems on databases; excluding services offered by a bar association and legal services.

Abrégé

The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example smoke particles, located in an open space (12).

Classes IPC  ?

• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz

Abrégé

Method and apparatus for detecting change of an object state from an initial state where the object is displayed in a plurality of sequential images. The system involves comparing a measure over a predetermined portion of each of the images corresponding to an object's initial state with a reference value of the measure computed when the object is in the initial state to generate a comparison value for each of the images and then generating a signal indicating that the object state has changed when a predetermined number of the comparison values generated for each of the images do not meet a predetermined criterion.

Classes IPC  ?

• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales

Abrégé

In one form the present invention provides an apparatus (10) in an airflow path before a particle detector (38), wherein the apparatus (10) removes a substantially constant proportion of all sizes of airborne particles from the airflow over time. In a preferred form the apparatus includes a flow splitting arrangement (18) configured to divide a fluid flow into a plurality of sub- flows, the splitting arrangement 10 including means (22, 23) for defining a plurality of substantially identically dimensioned flow apertures configured to direct a portion of the fluid into a respective sub-flow.

Classes IPC  ?

• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• B01D 35/00 - Dispositifs filtrants ayant des particularités non couvertes spécifiquement par les groupes , applications non couvertes spécifiquement par les groupes ; Dispositifs auxiliaires pour la filtration; Structure du carter de filtre
• G01N 1/18 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide avec mesures prises pour diviser des échantillons en plusieurs parties
• G01N 1/34 - Purification; Nettoyage
• G01N 1/38 - Dilution, dispersion ou mélange des échantillons
• G08B 17/12 - Déclenchement par la présence de rayonnement ou de particules, p.ex. de rayonnement infrarouge ou d'ions

Abrégé

In one form the present invention provides an apparatus (10) in an airflow path before a particle detector (38), wherein the apparatus (10) removes a substantially constant proportion of all sizes of airborne particles from the airflow over time. In a preferred form the apparatus includes a flow splitting arrangement (18) configured to divide a fluid flow into a plurality of sub-flows, the splitting arrangement 10 including means (22, 23) for defining a plurality of substantially identically dimensioned flow apertures configured to direct a portion of the fluid into a respective sub-flow.

Classes IPC  ?

• G01N 1/38 - Dilution, dispersion ou mélange des échantillons

Abrégé

x, due to at least first particles having a size indicative of smoke particles may be achieved by way of integrating a level of such first particles passing through a particle detection system over time to determine the proportion of smoke particles arrested by a filter, “integrated smoke hours”. The “integrated smoke hours” value is, generally, a measure of cumulative filter blockage over time by smoke like particles and is a measure of a given amount of ambient smoke detected and recorded by a smoke detector system and integrated over the time of exposure of the smoke detector system to the ambient smoke. Using this method it is not necessary to infer the actual “filter load” per-se or, the actual particle mass trapped in the filter.

Classes IPC  ?

• G08B 21/00 - Alarmes réagissant à une seule condition particulière, indésirable ou anormale, et non prévues ailleurs

Abrégé

A method for determining an operational condition of a particle detection system including at least one sample inlet for receiving a sample flow from a monitored region. The method includes the step of conducting an upstream measurement of a flow rate through the at least one sample inlet.

Classes IPC  ?

• G01F 25/00 - Test ou étalonnage des appareils pour la mesure du volume, du débit volumétrique ou du niveau des liquides, ou des appareils pour compter par volume

Produits et services

(1) Anti intrusion burglar alarms; perimeter intrusion detectors and alarms; personal security and burglar alarms; passive infrared detectors; electronically operated remote speed sensing apparatus, remote speed recorders and indicators, traffic data acquisition systems and apparatus using microwave, ultrasonic and passive infrared sensors, speed checking apparatus for vehicles; vehicle counting and detector system, vehicle type detection system including length and height of vehicle determination; detectors for use in traffic management systems and intersection control systems; apparatus for remotely metering vehicle speed

Produits et services

Protection and surveillance equipment with alarm capability; passive infrared detectors; electronically operated remote speed sensing apparatus, remote speed recorders and indicators, traffic data acquisition systems and apparatus using microwave, ultrasonic and passive infrared sensors, speed checking apparatus for vehicles; vehicle counting and detector system, vehicle type detection system including length and height of vehicle determination; detectors for use in traffic management systems and intersection control systems; apparatus for remotely metering vehicle speed.

Produits et services

Electronic air pollution monitoring equipment comprised of [ air pollution monitors, ] airborne particle detectors, gas detectors, chemical-hazard detectors, smoke detectors, and fire detectors; Smoke detection monitors; [ Active fire suppression and extinguishing equipment comprising water sprinklers, water misting systems, chemical clean agents, inert gases, and the sub-systems used to control, actuate, and monitor such equipment, namely, actuators, monitors, and suppression release devices; ] Gas detectors and the systems used to control and monitor such equipment; [ Flame detectors and the systems used to control and monitor such equipment; Electronically controlled fire alarm systems comprised of computer hardware, software, electronic controls, and input and output devices, namely, fire alarm control panels and environmental monitoring and control panels; Electronically controlled fire prevention systems comprising fire-suppressive and fire-preventative gas agents and total flooding agents to reduce hypoxic oxygen; Electronic devices for use in security and surveillance and for use in the monitoring and control of security systems, namely, cameras, monitors, alarms, digital video and audio recorders, alarm panels, input and output devices, displays, control panels, and software used to control and monitor such apparatus; Apparatus for recording or reproducing sounds and images; Apparatus for recording, producing, or transmitting of security or surveillance data; Voice notification and evacuation alarm equipment and systems comprising amplifiers, speakers, controllers, displays, control panels, paging panels, audio input panels, multiplexors, mixers, and the networks used to allow these devices to intercommunicate data and audio information; Amplifiers, namely, voice transmitting apparatus, speakers, microphones, digital amplifiers, electric amplifiers, sound amplifiers, image amplifiers, and audio induction loop amplifiers; Anti-intrusion alarms and perimeter protection systems; Access control equipment and systems comprising card and biometric readers, door control equipment, and video and infrared image analyzers; ] Passive infrared detectors; [ Electronically operated remote speed sensing apparatus; Remote speed recorders and indicators; Vehicle traffic data acquisition systems and apparatus comprised of microwave, radar, ultrasonic, and passive infrared sensors; Speed checking apparatus for vehicles; Vehicle counting and detector systems used for vehicle detection, counting, and length and height determinations for the classification of vehicles, comprised of microwave, radar, ultrasonic, and passive infrared sensors; Detectors for use in traffic management systems and intersection control systems for detecting vehicles such as bicycles, cars, vans, lorries, trucks, and buses; Apparatus for remotely metering vehicle speed; Parts for the foregoing products; ] Computer [ hardware and ] software used to control and monitor all the foregoing equipment and systems

Produits et services

(1) Electronic air pollution monitoring equipment, namely air pollution monitors, airborne particle detectors, gas detectors, chemical-hazard detectors, bio-hazard detectors, radiological and nuclear hazard detectors, explosive hazard detectors, smoke detectors, fire detectors, and parts thereof; smoke detectors, smoke detection monitors; fire detectors; fire alarms; fire control and indicating equipment, namely fire alarm panels, environmental monitoring and control panels, fire system input and output devices, displays and control systems, and the systems used to control and monitor such equipment and systems; active fire suppression and extinguishing equipment, namely water sprinkler, water mister, chemical clean agents and inert gases, and the sub-systems used to control, actuate and monitor such equipment, namely actuation devices and suppression release devices and parts thereof; gas detectors and flame detectors, and the systems used to control and monitor such equipment; bio-hazard detectors, bio-hazard detection monitors, and parts thereof and computer hardware and software used to control and monitor all the foregoing equipment and systems; electronically controlled fire prevention systems, namely fire-suppressive and fire preventative gas agents and total flooding agents to reduce oxygen (hypoxic); security and surveillance cameras, security and surveillance monitors, security and surveillance alarms, digital video and audio recorders for security systems; security and surveillance alarm panels and related control and security and surveillance indicating equipment, security and surveillance input and output devices, displays and control systems, and the systems used to control and monitor such equipment and systems; audio cassette, videocassette and digital audio and video recorders for recording, production or transmission of security or surveillance data; voice notification and evacuation alarm equipment and systems, namely amplifiers, speakers, controllers, display and control panels, paging panels; audio input panels, multiplexes and mixers and the computer networks to allow these devices to intercommunicate data and audio; amplifiers, namely public address amplifiers, digital amplifiers, electric amplifiers, sound amplifiers, image amplifiers and audio induction loop amplifiers; loudspeakers; computer hardware; alarm installations and alarms, namely burglar alarms, fire alarms, personal security alarms, anti-intrusion warning alarms and perimeter protection security alarms; electronic security systems, namely security and surveillance cameras, security and surveillance monitors and parts thereof.

Produits et services

(1) Electronic air pollution monitoring equipment, namely air pollution monitors, airborne particle detectors, gas detectors, chemical-hazard detectors, bio-hazard detectors, radiological and nuclear hazard detectors, explosive hazard detectors, smoke detectors, fire detectors, and parts thereof; smoke detectors, smoke detection monitors; fire detectors; fire alarms; fire control and indicating equipment, namely fire alarm panels, environmental monitoring and control panels, fire system input and output devices, displays and control systems, and the systems used to control and monitor such equipment and systems; active fire suppression and extinguishing equipment, namely water sprinkler, water mister, chemical clean agents and inert gases, and the sub-systems used to control, actuate and monitor such equipment, namely actuation devices and suppression release devices and parts thereof; gas detectors and flame detectors, and the systems used to control and monitor such equipment; bio-hazard detectors, bio-hazard detection monitors, and parts thereof and computer hardware and software used to control and monitor all the foregoing equipment and systems; electronically controlled fire prevention systems, namely fire-suppressive and fire preventative gas agents and total flooding agents to reduce oxygen (hypoxic); security and surveillance cameras, security and surveillance monitors, security and surveillance alarms, digital video and audio recorders for security systems; security and surveillance alarm panels and related control and security and surveillance indicating equipment, security and surveillance input and output devices, displays and control systems, and the systems used to control and monitor such equipment and systems; audio cassette, videocassette and digital audio and video recorders for recording, production or transmission of security or surveillance data; voice notification and evacuation alarm equipment and systems, namely amplifiers, speakers, controllers, display and control panels, paging panels; audio input panels, multiplexes and mixers and the computer networks to allow these devices to intercommunicate data and audio; amplifiers, namely public address amplifiers, digital amplifiers, electric amplifiers, sound amplifiers, image amplifiers and audio induction loop amplifiers; loudspeakers; computer hardware; alarm installations and alarms, namely burglar alarms, fire alarms, personal security alarms, anti-intrusion warning alarms and perimeter protection security alarms; electronic security systems, namely security and surveillance cameras, security and surveillance monitors and parts thereof.

Produits et services

Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus; systems and equipment for monitoring air pollution and airborne particle detection; systems and equipment for smoke detection; smoke and fire detectors; fire alarms; fire panels; fire suppression systems; parts for all of the foregoing; gas detection, bio-hazards detection and smoke detection, and software, hardware, parts of and accessories for such systems, devices and equipment; control systems related to the protection of property from fire including input devices, output devices and other control devices and equipment, and software, hardware, parts of and accessories for such systems, devices and equipment; fire prevention systems; video surveillance and security systems; apparatus and equipment for recording, generating, reproducing or transmitting sounds and/or images; voice evacuation and alarm systems; voice evacuation networks; amplifiers including public address amplifiers, digital amplifiers, electric amplifiers, sound amplifiers, image amplifiers and audio induction loop amplifiers; loudspeakers; microphones; computer software; computer hardware; storage media including digital sound stage units; alarms, anti-theft warning apparatus; electronic security/surveillance apparatus and equipment included in this class; and all other goods included in this class. Building construction; repair; installation services; commissioning, installing, maintenance including review of performance and reliability, and repair of alarm systems. Legal services; security services for the protection of property and individuals; personal and social services rendered by others to meet the needs of individuals; monitoring of alarm systems; security consultancy.

Produits et services

Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus; systems and equipment for monitoring air pollution and airborne particle detection; systems and equipment for smoke detection; smoke and fire detectors; fire alarms; fire panels; fire suppression systems; parts for all of the foregoing; gas detection, bio-hazards detection and smoke detection, and software, hardware, parts of and accessories for such systems, devices and equipment; control systems related to the protection of property from fire including input devices, output devices and other control devices and equipment, and software, hardware, parts of and accessories for such systems, devices and equipment; fire prevention systems; video surveillance and security systems; apparatus and equipment for recording, generating, reproducing or transmitting sounds and/or images; voice evacuation and alarm systems; voice evacuation networks; amplifiers including public address amplifiers, digital amplifiers, electric amplifiers, sound amplifiers, image amplifiers and audio induction loop amplifiers; loudspeakers; microphones; computer software; computer hardware; storage media including digital sound stage units; alarms, anti-theft warning apparatus; electronic security/surveillance apparatus and equipment included in this class; and all other goods included in this class. Building construction; repair; installation services; commissioning, installing, maintenance including review of performance and reliability, and repair of alarm systems. Legal services; security services for the protection of property and individuals; personal and social services rendered by others to meet the needs of individuals; monitoring of alarm systems; security consultancy.

Abrégé

A smoke detecting method which uses a beam of radiation such as a laser (16), to monitor a region, such as a room (12). A camera (14) is used to capture images of part of the room (12), including a path of the laser beam. Particles in the laser beam scatter light (30), and this is captured by the camera (14) for analysis. A processor (20) extracts data relating to the scattered light (30) to determine the density of particles in the beam, to determine the level of smoke in the region. The laser may have a modulated output (38) so that images captured without the laser tuned “on” can be used as a reference point and compared to images taken with the laser turned “on”, to assist in determining the level of scattered light (30) compared to ambient light. Filters (24, 26) may be used to decrease signals generated from background light.

Classes IPC  ?

• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales

Produits et services

Alarm installations and alarms, Anti-intrusion alarms, Apparatus for recording, transmission or reproduction of sound and images, namely, Apparatus for Recording, Reproduction or Transmission of Security or Surveillance Data; Digital Video And Audio Recorders For Security Systems; Apparatus for Transmitting Sound or Images from a Remote Location to a Central Office; Building security systems comprising software and hardware for controlling apparatus and providing picture, video, audio, alarm status, building plans, and other information to and from a remote station; Computer hardware and software system for remotely monitoring and controlling devices within a building, facility, grounds, or designated spatial area; Facilities management software, namely, software to control security systems; Systems For Intelligent Processing Of Video And Still Images For Security And Surveillance, Namely, Computer Hardware And Software Adapted For Video Processing, Video Motion Detection, Analyzing Images To Generate An Alarm And Security Zone Isolation Technology; Detection Devices For Security Systems, Namely, Motion Detectors, Passive Infra-Red Detectors, Video Cameras And Video Monitors; Parts And Fittings For All The Aforesaid Goods

Abrégé

The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).

Abrégé

The invention provides use of one or more emitted beams of radiation (16), for example, laser beam(s), in combination with an image capturing means (14), for example, one or more video cameras and/or optical elements to detect particles (30), for example, smoke particles, located in an open space (12).

Classes IPC  ?

• G08B 17/10 - Déclenchement par la présence de fumée ou de gaz
• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée

Abrégé

The invention provides a method of detecting particles. The method includes emitting a beam of radiation from a light source into a monitored region and detecting an increase in scattered radiation intensity in images of the region captured by a camera, the increase in scattered radiation intensity in images of the region indicating the presence of the particles wherein the beam of radiation and a means of detecting the increase in scattered radiation intensity in images are adapted to communicate data. The field of view of the camera includes at least part of a path of a laser beam and the laser beam does not impact on the camera directly. The light source is within the field of view of the camera.

Classes IPC  ?

• G08B 17/107 - Déclenchement par la présence de fumée ou de gaz utilisant un dispositif émetteur et récepteur de lumière pour détecter une diffusion de lumière due à de la fumée

Produits et services

Systems, devices and equipment for air pollution monitoring, particle detection, gas detection, bio-hazards detection and smoke detection; and software, hardware, parts of and accessories for such systems, devices and equipment; control systems related to the protection of property from fire including input devices, output devices and other control devices and equipment; and software, hardware, parts of and accessories for such systems, devices and equipment. Printed matter; instructional and teaching material (except apparatus) for the training, auditing, commissioning, maintenance and system design of systems, devices, equipment and control systems for air pollition monitoring, particle detection, gas detection, bio-hazards detection, smoke detection, and systems, devices, equipment and control systems related to the protection of property from fire. Audit of alarm systems including a review of the degree to which they meet performance and safety standards; storage and processing of information and data relating to alarm systems. Commissioning, installation, maintenance including review of performance and reliability, and repair of alarm systems. Communications including transmission and reception of alarm system messages by digital electronic devices, computer terminals and network devices; provision of access to databases relating to alarm systems allowing the retrieval of data and information. Education, providing of training, arranging and conducting of workshops and seminars and practical training and demonstration of commissioning, auditing, system design and maintenance of alarm systems. Security services for the protection of property and individuals, monitoring of alarm systems and security consultancy; provision of information relating to alarm systems on databases.

Produits et services

detectors and monitoring alarms, namely measurement detectors and signaling devices; all the aforesaid being for detecting gas purity, airborn dust particles, dust, smoke or pollution