G01S17/66

Method, processing unit and surveying instrument for improved tracking of a target
11709269 · 2023-07-25 · ·

A method implemented in a processing unit controlling a surveying instrument is provided. The method comprises obtaining a first set of data from optical tracking of a target with the surveying instrument, and identifying from the first set of data a dependence over time of at least one parameter representative of movements of the target. The method further comprises receiving a second set of data from a sensor unit via a communication channel, the second set of data including information about the at least one parameter over time, and determining whether a movement pattern for the optically tracked target as defined by the dependence over time of the at least one parameter is the same as, or deviates by a predetermined interval from, a movement pattern as defined by the dependence over time of the at least one parameter obtained from the second set of data.

MACHINE SYSTEM AND ASSOCIATED METHOD FOR OPTICAL ENDPOINT CONTROL OPTIMIZATION

Provided is a machine system having optical endpoint control and associated method for maintaining having is provided constant optical contact. Specifically, the machine system comprises a machine capable of movement in at least one direction. The machine is configured such that, during a calibration phase, a steerable retroreflective system is mounted upon the machine for movement therewith. A controller is configured to control the movement of the machine in at least one direction. The machine system may be configured to automatically adjust the feedrate of the machine, upon determining that a velocity required for the positioner to move the retroreflector to a desired position exceeds a certain segment feedrate threshold, such that an incident beam of light can maintain constant contact with the retroreflector throughout movement of the machine from the first position to the second position.

AUTOMATIC LOCATING OF TARGET MARKS

A target reflector search device. This device comprises an emitting unit for emitting an emission fan, a motorized device for moving the emission fan over a spatial region, and a receiving unit for reflected portions of the emission fan within a fan-shaped acquisition region, and a locating unit for determining a location of the reflection. An optoelectronic detector of the receiving unit is formed as a position-resolving optoelectronic detector having a linear arrangement of a plurality of pixels, each formed as an SPAD array, and the receiving unit comprises an optical system having an imaging fixed-focus optical unit, wherein the optical system and the optoelectronic detector are arranged and configured in such a way that portions of the optical radiation reflected from a point in the acquisition region are expanded on the sensitivity surface of the optoelectronic detector in such a way that blurry imaging takes place.

AUTOMATIC LOCATING OF TARGET MARKS

A target reflector search device. This device comprises an emitting unit for emitting an emission fan, a motorized device for moving the emission fan over a spatial region, and a receiving unit for reflected portions of the emission fan within a fan-shaped acquisition region, and a locating unit for determining a location of the reflection. An optoelectronic detector of the receiving unit is formed as a position-resolving optoelectronic detector having a linear arrangement of a plurality of pixels, each formed as an SPAD array, and the receiving unit comprises an optical system having an imaging fixed-focus optical unit, wherein the optical system and the optoelectronic detector are arranged and configured in such a way that portions of the optical radiation reflected from a point in the acquisition region are expanded on the sensitivity surface of the optoelectronic detector in such a way that blurry imaging takes place.

TRACKING RADAR TARGETS REPRESENTED BY MULTIPLE REFLECTION POINTS
20230236306 · 2023-07-27 ·

Methods, devices and instruction-carrying storage operate to track a target object over time and space. The tracking techniques involve obtaining a point cloud of reflection points at time n, a target from time n−1, state information including previous location information for the target and previous group distribution for previous reflection points associated with the target at time n−1; predicting a location of the target at time n based on the state information; determining a gate around the target and which of the multiple reflection points are within the gate; determining, for each of the multiple reflection points determined to be within the gate, a likelihood that the corresponding reflection point is associated with the target; determining current group distribution for the reflection points determined to likely be associated with the target; and outputting the determined current group distribution and current location information of the target.

METHOD FOR ASCERTAINING SUITABLE POSITIONING OF MEASURING DEVICES AND SIMPLIFIED MOVING IN MEASURING AREAS USING VIS DATA AND REFERENCE TRAJECTORIES BACKGROUND
20230237681 · 2023-07-27 · ·

A method for ascertaining a suitable deployment of a mobile measuring device within measurement surroundings, wherein first and second measurement surroundings containing first and second object features are automatically optically captured at the first deployment and tracked using a visual inertial system (VIS) and within the scope of changing the deployment. The first and second measurement surroundings are compared, wherein the comparison is based on searching for corresponding first and second object features visible in a certain number and quality in the first and second measurement surroundings, wherein this certain number and quality of corresponding features is a criterion that a registration of the first and second point cloud is possible.

Laser scanner with real-time, online ego-motion estimation
11567201 · 2023-01-31 · ·

A method comprises accessing a data set comprising a LIDAR acquired point cloud comprising a plurality of points each of which are attributed with at least a geospatial coordinate, sub-sampling at least a portion of the plurality of points to derive a representative sample of the plurality of points and displaying the representative sample of the plurality of points.

Laser scanner with real-time, online ego-motion estimation
11567201 · 2023-01-31 · ·

A method comprises accessing a data set comprising a LIDAR acquired point cloud comprising a plurality of points each of which are attributed with at least a geospatial coordinate, sub-sampling at least a portion of the plurality of points to derive a representative sample of the plurality of points and displaying the representative sample of the plurality of points.

System and method for correcting for atmospheric jitter and high energy laser broadband interference using fast steering mirrors

A system includes a high energy laser (HEL) configured to transmit a HEL beam aimed at a first location on an airborne target. The system also includes a beacon illuminator laser (BIL) configured to transmit a BIL beam aimed at a second location on the target, wherein the second location is offset from the first location. The system also includes at least one fast steering mirror (FSM) configured to steer the BIL beam to be spatially and angularly offset from the HEL beam. The system also includes at least one Coudé path FSM configured to simultaneously receive both the HEL beam and the BIL beam and steer the HEL beam and the BIL beam to correct for atmospheric jitter of the HEL beam and the BIL beam while maintaining the offset of the BIL beam from the HEL beam.

Systems and methods for streaming processing for autonomous vehicles
11713006 · 2023-08-01 · ·

Generally, the present disclosure is directed to systems and methods for streaming processing within one or more systems of an autonomy computing system. When an update for a particular object or region of interest is received by a given system, the system can control transmission of data associated with the update as well as a determination of other aspects by the given system. For example, the system can determine based on a received update for a particular aspect and a priority classification and/or interaction classification determined for that aspect whether data associated with the update should be transmitted to a subsequent system before waiting for other updates to arrive.