A surveying system comprises a laser scanner for scanning a distance measuring light and for acquiring point cloud data and a target instrument having a target for reflecting the distance measuring light, wherein the target is a sphere having a known diameter, the laser scanner comprises a distance measuring module for projecting the distance measuring light, for receiving a reflected distance measuring light and for performing a distance measurement, an optical axis deflector which enables to two-dimensionally deflect the distance measuring light, and an arithmetic control module for controlling the optical axis deflector, and wherein the arithmetic control module is configured to perform a circular scan on a surface of the target by the optical axis deflector, to obtain a center of the target based on the point cloud data acquired by the circular scan and the diameter, and to measure a distance of the center of the target.

A surveying instrument for executing a relocation functionality, which determines first coordinates of a stationary target point associated with the start signal, in response to a start signal, a first actuator and a second actuator are controlled such that the stationary target point remains within a detection area of a tracking unit of the surveying instrument, determines second coordinates of the stationary target point, receives an end signal, wherein the second coordinates of the stationary target point are associated with the end signal, and based at least in part on the first and second coordinates of the stationary target point, and determines a relative pose of the surveying instrument with respect to a first setup location and a second setup location, wherein the first setup location is associated with the first coordinates and the second setup location is associated with the second coordinate.

A surveying instrument for executing a relocation functionality, which determines first coordinates of a stationary target point associated with the start signal, in response to a start signal, a first actuator and a second actuator are controlled such that the stationary target point remains within a detection area of a tracking unit of the surveying instrument, determines second coordinates of the stationary target point, receives an end signal, wherein the second coordinates of the stationary target point are associated with the end signal, and based at least in part on the first and second coordinates of the stationary target point, and determines a relative pose of the surveying instrument with respect to a first setup location and a second setup location, wherein the first setup location is associated with the first coordinates and the second setup location is associated with the second coordinate.

Accessory (30) for a laser receiver for transferring a laser line to a work surface, including a base plate (35) with a front side and a rear side, with which the accessory (30) is able to be arranged on the work surface, a connection device (36) for connecting the laser receiver to the accessory (30), and a rotary joint (37) that is arranged between the base plate (35) and the connection device (36), wherein the connection device (36) is rotatable about an axis of rotation (39) relative to the base plate (35) between a first angle and a second angle.

A surveying device is operated to measure a surface profile of a terrain of a worksite and generate surface profile data indicative of the surface profile. A work machine is operated to move along a route over the terrain in accordance with an operating parameter and generates machine operational data indicative of the operating parameter. A navigation system determines the route and generates route data. A processing unit processes the route data, machine operational data and surface profile data to generate monitored operating condition data indicative of a monitored operating condition of the machine.

A clamp for laser level detectors release mechanism is provided. The clamp includes a body, a shaft slidably coupled to the body, a fixed jaw, and a moveable jaw coupled to the shaft. The clamp permits adjusting the position and orientation of the laser level detector while the clamp remains coupled to a work piece.

A method for improving wireless communication for a drone swarm, the method comprising, at a computing system, receiving, from a plurality of drones of a drone swarm, data comprising radio frequency signal characteristics detected by the plurality of drones; generating a model of a radio frequency environment for the drone swarm based on the data received from the plurality of drones; and controlling at least one wireless communication system to improve wireless communication for the drone swarm based on the model of the radio frequency environment.

The present invention relates to a surveying apparatus for surveying an object as well as a surveying system comprising the surveying apparatus having a simple and compact optical setup. The surveying apparatus comprises a lens arrangement including at least one movably arranged focus lens element for focusing to sight an object; an imaging unit configured to obtain an image of at least a part of the object; a distance measuring unit configured to measure a distance to the object along the optical axis of the distance measuring unit; and a beam splitter/combiner configured to combine a part of the optical imaging path of the imaging unit and a part of the optical distance measuring path of the distance measuring unit so that the optical axis of the imaging unit and the optical axis of the distance measuring unit are at least coaxially arranged with the optical axis of the lens arrangement between the lens arrangement and the beam splitter/combiner.

An apparatus is for use with a rotary laser level system having a rotary laser level that shines a laser light that is received by remote re-positionable laser sensor, for mounting the re-positionable laser sensor in selectable elevation on a manually relocatable rod. The apparatus comprises a track presenting an outer face and rod-engaging face, and having a length extending between a top end and a bottom end, and a sensor carrier operatively mounted on the track for movement along the track. The sensor carrier comprises a housing, a wheel mounted on the housing in rotatable relation about a main axis, wherein the wheel is operatively engaged on the track such that rotation of the wheel causes movement of the wheel along the track, and means for selectively imparting rotation of the wheel about the main axis to thereby cause the sensor carrier to move along the track. In use, when the handle is rotated, the wheel correspondingly rotates, thereby moving the wheel along the track, and correspondingly moving the sensor carrier along the track to a selected position.

Disclosed is a method for monitoring ground settlement based on computer vision. Before monitoring starts, the first image frame is captured. For one measuring point, the area of the top LED lamp is defined as a tracking template, its pixel center is the reference point for settlement calculation, and a monitoring area is defined by an estimated range. After monitoring starts, the best matched of the lamp template is searched for in the monitoring area of a second image frame. When the best matched area is obtained, its pixel center is obtained as the new lamp position, and it is selected as the new template; the pixel displacement between two adjacent image frames can be obtained by comparison. The total pixel displacement of multiple points during the monitoring period is calculated through the accumulated displacement, and the actual settlement is calculated through a pixel-physical ratio.