A co-located global navigation satellite system (GNSS) antenna (40) and beamforming antenna (20), where the phase centres of the two antennae are co-located in at least one axis, preferably the vertical axis. Differences in the phase centre locations can be compensated using, for example, orientation and/or sensor data.
The invention relates to a digital camera system (2) having at least two independent digital cameras (3.1-3.4), which capture irnage signals in different narrow-band spectral ranges, wherein each of the at least two independent digital cameras (3.1-3.4) comprises at least one separate two-dimensional digital image sensor (6), preferably a CCD sensor or a CMOS sensor, and at least one filter element (7.1-7.4) corresponding to the particular narrow-band spectral range connected upstream of the at least one two-dimensional digital image sensor (6) and having at least one filter region (7a.1-7a.4). The at least one colour filter element (7.1-7.4) additionally comprises at least one neutral region (7b), which is translucent in a spectral range that includes at least the different narrow-band spectral ranges of the at least two independent digital cameras (3.1-3.4), in particular in a panchromatic spectral range, and which is assigned to at least one specific neutral, in particular unused, pixel region (6b) of the associated at least one two-dimensional digital image sensor (6).
The invention concerns a surveying method for measuring an object, wherein the object belongs to a group of known types of objects, and determining an object representing point corresponding to the type of the object, by a surveying instrument (1) with means for measuring distances and angles and a camera, comprising the steps of: determining a series of points (6e, 6f, 6g) at an object (21, 27) by measuring distances and angles to the points in a defined angle area, analysing the spatial distribution of the points and, based thereon, assigning relevant points to a first group of points (6e), identifying the type of the object (21) on the basis of the first group of points (6e), capturing an image of the object (21), extracting a contour of the object (21) from the image by use of an image processing method, fitting at least one space curve to the object on the basis of the first group of points and the extracted contour, and determining the coordinates of the object representing point from the fitted space curve.
The invention relates to a calibration method that can be carried out without a reference system for an angle measuring device having a code carrier (2) carrying an absolute position code, and at least two reading heads (1a and 1b) comprising a fixed, known angle position (4) at an angular distance, in particular of more than (50) degrees, relative to each other, in particular wherein at least one of the angle distances between adjacent reading heads (1a,1b,1c,1d) differs from the other angle distances, and each detecting the position code at least partially, such that an absolute angle position value of each reading head can be determined relative to the code carrier, wherein the code carrier can be rotated (3) relative to the reading heads, and different angle positions of the code carrier relative to the reading heads can thus be captured, comprising the steps of: determining the angle position values of the reading heads (1a and 1b) in an angular setting; determining an angular error by comparing the difference of the angle position values of the reading heads to the known angular location (4) of the reading heads (1a and 1b) relative to each other; repeating the determining of the angle position values and the angular error for a plurality of varying angle settings, and performing a mathematical analysis method, comprising determining the parameters of a mathematical function quantifying the angular error, and determining calibration parameters as parameters of the quantifying mathematical function or as a correction or code table derived from the parameters.
G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
A method of calibrating inertial sensors of working equipment, such as a vehicle or survey equipment, includes determining whether the working equipment is in operation or not. Data is captured from inertial sensors and associated temperature sensors while the working equipment is out of operation. The captured data is used to update a thermal bias error model for the inertial sensors.
A target equipped with a reflector can be tracked in a measuring system comprising a laser tracker. The reflector is tracked by means of a tracking unit in a normal tracking mode and by means of a surveying device in an extraordinary tracking mode. A capturing unit having a detection range lying between the detection ranges of the tracking unit and of the surveying device is also present. If the target cannot be detected by the tracking unit but can be detected by the capturing unit, the orientation of the tracking unit is controlled according to a measurement by the capturing unit If the target can then be detected by the tracking unit, a transition to the normal tracking mode is initiated. If the target can be detected only by the surveying device, the orientation of the tracking unit is controlled according to a measurement of the surveying device.
The invention relates to a method for correcting a distortion in an aerial photograph caused by a flight movement in the forward direction, the photograph being taken with an aerial camera from a flying object. The aerial photograph is captured by a surface sensor of the aerial camera having a plurality of photo-sensitive pixels, the sensor lines of which sensor, in particular rows, are exposed at different, successive exposure times by means of a slit diaphragm shutter which moves over a projected image, so that each individual sensor line senses a strip of terrain of the terrain flow over at the different exposure times. According to the invention, a relative flight altitude, which is current in particular at the exposure time, above the strips of terrain captured by the respective sensor line is assigned to the individual sensor lines. Furthermore, a compensation factor is separately determined for each of the individual sensor lines, wherein the factor depends on an air speed of the flying object, a focal length of the aerial camera and the relative flight altitude assigned to the respective sensor line, and corrects the distortion in the aerial photograph for the lines based on the respective compensation factor.
A positioning method whereby inertial positioning data is calculated based upon measurements of an Inertial Navigation System. Virtual satellite ranging data is then generated based upon the inertial positioning data. The virtual satellite ranging data is then combined with received satellite ranging data from one or more satellites forming part of a Global Navigation Satellite System (GNSS). A GNSS positioning solution is then calculated based upon the combined received satellite ranging data and the virtual satellite ranging data.
G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
G01S 5/14 - Determining absolute distances from a plurality of spaced points of known location
Chronologically correlated position pairs are generated in a position determination method using a unit, particularly a working machine (4), that changes its own position, having a GNSS receiver (2) and an optically measurable reference point (A) disposed in a spatially stationary manner, particularly an all-around prism (3), and having a geodetic device with a distance- and angle-measuring functionality, particularly a tacheometer (1). To this end, relative positions of the reference point (A) are determined in an interior reference system by optically measuring distance and at least one angle of the geodetic device to the reference point (A) and GNSS positions of the GNSS receiver in an exterior reference system. Equal times, or relative and GNSS positions allocated to a time frame are associated with each other, particularly in pairs, thus forming position pairs. In addition, the position pairs perform a derivation from a balanced relationship between the exterior and interior reference system, particularly from balanced transformation parameters, and determine the position of the unit, of the geodetic device, and/or of the measurable new point from said balanced relationship.
The invention relates to an optical guidance system for a laying engine for producing a concrete or asphalt top layer along a given path (6), wherein the laying engine comprises a first unit (1), such as a distributor for distributing the material and a second unit (2), such as a finisher for smoothing the material. The first and second unit are driven independently of each other and may be driven in formation. According to the invention, the optical guidance system comprises at least one transmitter component (3), one receiver component (5) and one computer component (19) for providing control instructions, relating for example to the direction of travel of the first or second unit. The transmitter component (3) is to be provided on the second unit (2) ad designed to emit optical reference beams (4). The receiver component (5) is to be provided on the first unit (1) and comprises several photosensitive receiver regions for detecting the reference beams and is designed to determine at least one incidence point for the reference beams on the receiver components (5). The computer component (19) calculates control instructions for the first and/or second unit using the at last one incident point and provides the same, for example to an operator, by means of a display or direct to a control unit.
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
11.
POSITION DETERMINATION METHOD FOR A GEODETIC SURVEYING DEVICE
The invention relates to a position determination method for a geodetic device having a distance and angle measuring functionality, such as a total station, a determination being made of the relative location of the geodetic device and reference points with reflectors of a quantity of reference points, by measuring the distance and at least one angle from the geodetic device to the reference points as reference variables, the reference variables being determined in a device-based reference system. For the reference point quantity formed by the reference points and a reference point quantity of measurable reference points, the positions of which are known in an external reference system, common elements are identified, the relative location of the reference points being derived from the reference variables and the common elements being identified and associated based on the relative location of the reference points. The position of the geodetic device in the external reference system is determined from the common elements and the positions thereof in an external reference system.
The invention relates to a sideways drift correction device for a mobile production machine comprising a removal of material and a tool for processing the removed material, having a sensor component and an evaluation component. The sensor component detects the structure of at least one part of the underground surface relative to which the production machine moves. The evaluation component determines the relative motion direction of a reference point on the production machine relative to the subsoil from the time--variable information of the underground surface, and derives steering correction information therefrom.
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
E01C 19/00 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
13.
METHOD FOR DETERMINING POSITION, LASER BEAM DETECTOR AND DETECTOR-REFLECTOR DEVICE FOR A SYSTEM FOR DETERMINING POSITION
The invention relates to a system for determining a position by emitting a first laser beam by a laser source positioned in a reference system onto a detector and simultaneously detecting the first laser beam by the detector, thus defining an emission direction of the laser source. The detector has a segmented detection area comprising a plurality of discrete partial detection areas, each having a defined partial detection direction and at least two partial detection directions thereof being different. When detecting the first laser beam, an impingement point of the first laser beam on the detector is detected by means of at least one partial detection area, and when determining the incidence direction, said direction is derived from the at least one partial detection direction. The location of the detector relative to the laser source and the reference system is then determined using the emission direction and the incidence direction.
G01S 3/784 - Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using a mosaic of detectors
14.
HIGH-SPEED LASER RANGING SYSTEM INCLUDING A FIBER LASER
Apparatuses and methods for gathering data describing a surface are disclosed. The apparatuses transmit pulses of light at a high rate using one or more fiber lasers. Examples of such apparatuses include laser ranging systems, such as light detection and ranging (LIDAR) systems, and laser scanners. Data received from the apparatus by a data processing unit can be used to create a data model, such as a point cloud, digital surface model or digital terrain model describing the surface. The surface can be the surface of terrain and/or objects, for example. Use of the fiber laser results in many advantages, such as improved vertical surface discrimination, increased pulse rate, safety benefits, as well as other advantages.
G01S 7/48 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
The invention relates to a localization system for localizing an underground object (1) for an earthmoving machine (2a) comprising a working part (3a). Said localization system comprises a fastening component (4a) and a detector component (5a). The fastening component (4a) can be arranged on the working part (3a) for example by means of magnets. The detector component (5a) is adapted to detect the object (1) using an electromagnetic field that can be associated with the object (1) and is arranged on the fastening component (4a) so as to swing like a pendulum, thereby effecting an alignment of the detector component (5a) under the effect of gravity. Optionally, the localization system comprises an arithmetic component for deriving a distance information of the object (1) from the detected value. The localization system also comprises a display component for displaying and/or forwarding the detected value and/or the distance information.
G01V 3/15 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
The invention relates to a localization system for localizing an underground object (1) for an earthmoving machine (2a) comprising a working part (3a). Said localization system comprises a fastening component (4a) and a detector component (5a). The fastening component (4a) can be arranged on the working part (3a) for example by means of magnets. The detector component (5a) is adapted to detect the object (1) using an electromagnetic field that can be associated with the object (1). The detector component has a defined direction of detection and is arranged on the fastening component (4a) on the lower boom component of the working part in such a manner that the direction of detection is substantially parallel to the longitudinal direction of the lower boom component (12a) and points in the direction of the earthmoving part (13a). The system therefore always detects the very terrain that is being or could be worked on in the respective actual position of the earthmoving part (13a). Optionally, the localization system comprises an arithmetic component for deriving a distance information of the object (1) from the detected value. The localization system also comprises a display component for displaying and/or forwarding the detected value and/or the distance information.
G01V 3/15 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
An apparatus for measuring distance to a surface is disclosed. The apparatus transmits at least one subsequent pulse of light prior to receiving a reflection of a previously sent pulse of light. Thus, multiple pulses of light are in-flight at a given time. The embodiments are applicable to terrain mapping, bathymetry, seismology, detecting faults, biomass measurement, wind speed measurement, temperature calculation, traffic speed measurement, military target identification, surface to air rangefinding, high definition survey, close range photogrammetry, atmospheric composition, meteorology, distance measurement, as well as many other applications. Examples of such apparatuses include laser ranging systems, such as light detection and ranging (LIDAR) systems, and laser scanners. Data received from the apparatus by a data processing unit can be used to create a data model, such as a point cloud, digital surface model or digital terrain model describing the surface, terrain, and/or objects.
G01V 8/00 - Prospecting or detecting by optical means
G01V 8/12 - Detecting, e.g. by using light barriers using one transmitter and one receiver
G01C 23/00 - Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
Disclosed is a measuring system comprising a laser tracker (10), a target point marked by a reflector (12), a surveying apparatus (13), and an arithmetic and control unit (14). The laser tracker emits a measuring beam (M) which is reflected by the reflector, a process that is used for determining the distance between the laser tracker (10) and the reflector (12). The surveying apparatus has a known position and orientation relative to the measuring beam (M) while preferably being embodied as a survey camera. The inventive measuring system is designed so as to track the reflector (12) via the measuring beam (M). In a normal tracking mode (A), a measured value for controlling the orientation of the measuring beam (M) is derived from the detection of the measuring beam reflected by the reflector (12). If the measuring beam is not directed onto the reflector, i.e. the measuring beam (M) is not reflected by the reflector and thus no reflected measuring beam can be detected by the laser tracker, the system switches to a special tracking mode in which the measured value for controlling the orientation of the measuring beam (M) is derived from an image (20) of the survey camera (13).
Disclosed is a geodetic target object comprising at least one reflector surface, a receive channel with a detector (18) for receiving electromagnetic radiation (ES) transmitted by a measuring unit (2''), and a transmit channel with a radiation source (13'). The associated transmission port and/or reception port is/are integrated into the reflector surface or is/are embodied so as to adjoin the reflector surface such that radiation (RS) that is modulated for transmitting data can be transmitted in the direction of the measuring unit (2'') within the cross section (5'') of the radiation (ES) generated by the measuring unit (2'').
In a method according to the invention for controlling slip form pavers, it is intended to determine the positions of two reflectors arranged on the longitudinal beams of a machine frame by measuring means for position determination, in particular tacheometers, which are arranged at defined points in a reference terrain. From the position information and the measurement by means of two tilt sensors arranged on the machine frame, the positions of four points on the slip form paver or on the slip form paver screed are determined in the reference terrain. On the basis of a comparison of the determined actual positions of the four points with the required positions thereof, the slip form paver, and hence the installation height and position of the screed having a defined relationship with said slip form paver, are automatically controlled.
E01C 19/00 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
21.
METHOD AND ROTATING LASER FOR DETERMINING AN ITEM OF ATTITUDE INFORMATION OF AT LEAST ONE OBJECT
The invention relates to both a method for determining the horizontal position of an object, particularly of a mobile machine tool, which is to be oriented toward a height reference plane in a highly precise manner, while using at least one rotating laser, as well as to the rotating laser itself. The rotating laser comprises a rotating unit, a laser source for emitting a laser radiation into a rotating, horizontal direction of emission, and means for affecting at least one radiation parameter of the laser radiation with an item of angle--dependent information from which the direction of emission can be derived so that the direction of emission is associated with the direction from the rotating laser toward the object that receives the laser radiation.
G01S 1/70 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using electromagnetic waves other than radio waves
Disclosed herein is a method for monitoring the travel path of a road processing machine driving on a base surface and the working height of a working part arranged thereon in a vertically adjustable manner. In the method, the three-dimensional position of a position element arranged on the road processing machine is determined, and the working height of the working part is determined. The working height is compared with a required height, and/or the determined position is compared with a required position. The position element is arranged at a position which is located a distance away horizontally from the working part before the centre of gravity of the road processing machine in a travel direction: in the longitudinal direction of the road processing machine, at the end thereof which is at the front in the travel direction, and laterally on the road processing machine in the edge region thereof. The positional height of the three-dimensional position of the position element is converted into the working height at the working part with the use of at least one value of at least one reference determination.
E01C 19/48 - Machines, tools, or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface
23.
METHOD FOR CONTROLLING A SURFACE-MODIFYING MACHINE
The invention relates to a method for controlling a surface-modifying machine, wherein information on the desired condition and on the actual condition of ground to be prepared is provided and is used to derive control statements for the machine based on a comparison of the desired and the actual condition. The information on the actual condition is represented by a point cloud as a spatial distribution of discrete surface points. In order to derive control statements, at least two surface points each from the point cloud are used for every horizontal position so that non-differentiated information can be derived that for example also allow to identify various planes.
A method of controlling wireless messaging between mobile apparatuses and an onsite office in a worksite, including: dividing the worksite area into elementary cells mapped in correspondence with the topology of the area and into and communication zones, establishing at least one updatable communication attribute value pertaining to a parameter of wireless communication, establishing at least one worksite management attribute value pertaining to a parameter other than a wireless communication parameter of the worksite at that cell, storing values of the worksite and communication attributes, forming a worksite management message with an electronically readable content containing at least one worksite management attribute value, accessing the memory to obtain at least one current communication attribute value, and establishing a wireless communication to or from the communication zone to send or receive the management message on the basis of the current communication attribute value(s) electronically accessed from the memory.
patents
