Positioning system for determining an operating position of an aerial device, comprising a mobile distance metering device configured to determine a distance between the distance metering device and a remote environmental surface point and to record the determined distance as distance data, wherein the distance metering device comprises a transmission interface configured to transmit recorded distance data; a mobile terminal comprising a receiver interface configured to receive distance data transmitted from the distance metering device, a memory configured to store dimension data related to physical dimensions of an aerial device, processing means configured for calculating a position and/or a position range of the aerial device within a virtual space from the distance data and the dimension data, and a display configured to display the virtual space comprising a representation of the position and/or the position range of the aerial device within the virtual space.

A device for producing a triangular laser sheet. The device has an optical transmitter with a pair of plano-convex cylindrical lenses for circularizing infrared laser light and a plano-concave cylindrical lens for shaping the circularized light to produce a triangular laser sheet. A tilt sensor measures departure of the triangular laser sheet from a horizontal reference. The device projects a triangular sheet of infrared light that is useful for detecting over-height vehicles that are approaching a structure, such as a bridge.

Positioning system for determining an operating position of an aerial device, comprising a mobile distance metering device configured to determine a distance between the distance metering device and a remote environmental surface point and to record the determined distance as distance data, wherein the distance metering device comprises a transmission interface configured to transmit recorded distance data; a mobile terminal comprising a receiver interface configured to receive distance data transmitted from the distance metering device, a memory configured to store dimension data related to physical dimensions of an aerial device, processing means configured for calculating a position and/or a position range of the aerial device within a virtual space from the distance data and the dimension data, and a display configured to display the virtual space comprising a representation of the position and/or the position range of the aerial device within the virtual space.

Positioning system for determining an operating position of an aerial device, comprising a mobile distance metering device configured to determine a distance between the distance metering device and a remote environmental surface point and to record the determined distance as distance data, wherein the distance metering device comprises a transmission interface configured to transmit recorded distance data; a mobile terminal comprising a receiver interface configured to receive distance data transmitted from the distance metering device, a memory configured to store dimension data related to physical dimensions of an aerial device, processing means configured for calculating a position and/or a position range of the aerial device within a virtual space from the distance data and the dimension data, and a display configured to display the virtual space comprising a representation of the position and/or the position range of the aerial device within the virtual space.

Systems and methods for evaluating the performance of three-dimensional (3D) sensors can include, for example, obtaining, via a 3D sensor in a testing apparatus, range information of a scene within a field-of-view (FOV) of the 3D sensor. The scene includes a plurality of targets disposed within the testing apparatus. Each of the plurality of targets is located at a different distance from the 3D sensor in the testing apparatus. A validation of the performance of the 3D sensor at the different distances is performed at a same point in time, based on the range information. An indication of a result of the validation is provided.

Systems and methods for evaluating the performance of three-dimensional (3D) sensors can include, for example, obtaining, via a 3D sensor in a testing apparatus, range information of a scene within a field-of-view (FOV) of the 3D sensor. The scene includes a plurality of targets disposed within the testing apparatus. Each of the plurality of targets is located at a different distance from the 3D sensor in the testing apparatus. A validation of the performance of the 3D sensor at the different distances is performed at a same point in time, based on the range information. An indication of a result of the validation is provided.

A method for controlling a wheeled robot to move along a circular trajectory includes: determining a first distance between a laser emitter and a center of a circular trajectory on a surface where the robot moves and a second, perpendicular distance from the laser emitter to the surface, calculating a radius of the circular trajectory based on the first distance and the second distance, calculating, based on the radius, a distance between a first wheel and a second wheel, a ratio of a first linear velocity of the first wheel to a second linear velocity of the second wheel, and determining a first rotational speed and a second rotational speed based on the ratio, and controlling the first servo to operate at the first rotational speed and the second servo to operate at the second rotational speed so as to drive the robot to move along the circular trajectory.

A method for controlling a wheeled robot to move along a circular trajectory includes: determining a first distance between a laser emitter and a center of a circular trajectory on a surface where the robot moves and a second, perpendicular distance from the laser emitter to the surface, calculating a radius of the circular trajectory based on the first distance and the second distance, calculating, based on the radius, a distance between a first wheel and a second wheel, a ratio of a first linear velocity of the first wheel to a second linear velocity of the second wheel, and determining a first rotational speed and a second rotational speed based on the ratio, and controlling the first servo to operate at the first rotational speed and the second servo to operate at the second rotational speed so as to drive the robot to move along the circular trajectory.

A method for measuring a measurement distance between a rotating laser, which emits a first laser beam that can be rotated about a rotational axis and/or a stationary second laser beam, and a laser receiver, which has a detection field with a measurement function. The rotating laser is inclined in a direction of inclination by an inclination angle. The position of incidence of the inclined laser beam on the detection field of the laser receiver is determined as a measurement point. The distance between the measurement point and a zero position of the detection field is stored as the height, and the measurement distance between the rotating laser and the laser receiver is determined using the inclination angle and the height.

A method for measuring a measurement distance between a rotating laser, which emits a first laser beam that can be rotated about a rotational axis and/or a stationary second laser beam, and a laser receiver, which has a detection field with a measurement function. The rotating laser is inclined in a direction of inclination by an inclination angle. The position of incidence of the inclined laser beam on the detection field of the laser receiver is determined as a measurement point. The distance between the measurement point and a zero position of the detection field is stored as the height, and the measurement distance between the rotating laser and the laser receiver is determined using the inclination angle and the height.