There is provided a surveying pole comprising a pole arrangement and a target internally arranged in the pole arrangement, the target being configured to reflect and/or refract light depending on a medium in contact with a surface of the target. A top unit mounted on the pole arrangement comprises…
The present disclosure relates to a surveying instrument and to a method of operating a surveying instrument for tracking of a target including a plurality of light emitting elements and/or a plurality of light reflecting elements configured to emit and/or reflect light radially. The surveying…
A surveying instrument is provided. The surveying instrument comprises a distance measurement unit and a first optical receiver. The distance measurement unit comprises a transmitter and a detector. The transmitter is configured to emit light via a first optical path. The detector is configured to…
Some embodiments of the invention pertain to methods for orientation estimation or at least for generating information based on which orientation estimation can be derived, and to methods for pose parameters estimation or at least for generating information based on which pose parameters estimation…
The present inventive concept relates to a total station (), a calibration method () for a total station, and a method () for determining an internal calibration reference for a total station. The method () comprises: determining (S) an alignment error of an optical axis (, , ) of a reference…
A surveying instrument for surveying a scene including a target is provided. The surveying instrument comprises a front lens comprising an optical axis, and a multimode fiber comprising a core. The surveying instrument comprises a transmitter arrangement comprising a two dimensional array of…
The present disclosure provides a surveying instrument. The surveying instrument comprises a center unit comprising an optical device and a front lens. The optical device is arranged to emit and/or receive light through the front lens along an optical axis (OA) of the center unit. The surveying…
Described herein are systems, methods, and other techniques for performing conflation between target road polylines and source road polylines stored in GIS databases. A pairing of a target road polyline and a source road polyline is obtained. The target road polyline and the source road polyline…
A surveying prism can include a housing, optical features, and a bumper. The optical features can be located on a radial surface of the housing azimuthally offset from one another by equal arcs. The bumper can cover the optical features. The bumper can include flat edges and position indicators…
A total station includes a telescope and a tracking system for aligning an axis of the total station with a target. The tracking system includes a first emitter that emits first light toward the target and a first sensor that receives the first light reflected off the target. The first emitter and…
A navigation system includes an IMU, a navigation estimator configured to estimate a current navigation solution based on (i) a previous navigation solution, and (ii) a specific force vector and an angular rate vector measured by the IMU, an RI sensor, an RI data preprocessor configured to perform…
Two-dimensional targets, such as AprilTags, are used as control points. AprilTags can be used as cost effective alternatives to traditional prism targets without losing accuracy. AprilTags can be placed precisely around a construction site as “permanent” survey control points, like positioning…
A central map can be used in a construction environment to help position devices and receive updates from devices to update the central map. Devices in the construction environment, such augmented-reality devices, laser scanners, total stations, satellite navigation receivers, and others can be…
Described herein are systems, methods, and other techniques for determining vehicle turn difficulty using overhead satellite imagery. In some implementations, an overhead image of a road intersection is obtained. A footprint of the road intersection is predicted using the overhead image. The…
An augmented-reality device is used with a surveying system to guide a base station, such as a total station, during relock after loss of line of sight with a surveying instrument, such as a surveying pole with a reflective prism. A position of the surveying instrument in relation to the…
A receiver assembly or top unit for use in a survey system. A quick release assembly or interface, which is designed for simple construction and no moving parts, is provided in the receiver housing and battery pack that includes a pair of magnets such that the receiver housing is attached to the…
A navigation system includes an IMU, a navigation estimator configured to estimate a current navigation solution based on (i) a last navigation solution, and (ii) a specific force vector and an angular rate vector measured by the IMU, an RI sensor, an RI data preprocessor configured to: perform a…
An augmented-reality device is aligned with an environment using a correction source. A position of a reflector (or other device that is part of a surveying system) coupled with a surveying rod is measured in relation to a correction. A position of a visual design, which is coupled with the…
A total station includes a telescope, an EDM unit, and an onboard computer. The telescope is manually adjusted by a user to cause a target to be set at last partially within an FOV of the EDM unit. After the manual adjustment, an optical aiming point associated with the telescope is misaligned from…
An augmented-reality system is combined with a surveying system to make measurement and/or layout at a construction site more efficient. A reflector can be mounted to a wearable device having an augmented-reality system. A total station can be used to track a reflector, and truth can be transferred…
Embodiments describe a method for positioning a hinged vehicle including a primary part and a secondary part coupled to the primary part at a project site. The method includes receiving, from an image capturing device, digital image data representing one or more features of the secondary part…
A method of verifying accuracy of a perception system of a vehicle includes causing the vehicle to traverse a path around a target that is fixed in an environment. The target has a known pose. The path is configured so that the target comes into a respective field of view (FOV) of each respective…
A method of area coverage planning with replenishment planning includes receiving information of a boundary of the work area, location information of one or more refill stations, and information of a current amount of the material left in the autonomous vehicle, laying a plurality of tracks within…
A navigation system includes an IMU, a navigation estimator configured to estimate a current navigation solution based on (i) a previous navigation solution, and (ii) a specific force vector and an angular rate vector measured by the IMU, an RI sensor, an RI data preprocessor configured to perform…
Described herein are systems, methods, and other techniques for damping oscillations of an implement of a vehicle while the vehicle is moving. Sensor data is captured using one or more sensors that are attached to the vehicle. The sensor data is analyzed to extract one or both of symmetric…
A method of maintaining vehicle formation includes receiving a desired along path distance; receiving a plurality of waypoints corresponding to a plurality of positions along a path of the lead vehicle; determining a dynamic path for the follower vehicle by spline fitting the plurality of positions…
A method of maintaining vehicle formation includes receiving a desired cross track offset distance and a desired along track offset distance between a lead vehicle and a follower vehicle; receiving a current position, a current yaw rate, and a current speed of the lead vehicle; determining a…
A method of maintaining vehicle formation includes receiving a desired formation distance between a lead vehicle and a follower vehicle; receiving a pre-planned path for the follower vehicle; and defining a dynamic zone around a current position of the lead vehicle. The dynamic zone has a boundary…
Disclosed are techniques for displaying AR elements on a display system of a construction machine. A position of the construction machine in a world reference frame is detected. An orientation of the construction machine is detected. A position of an operator of the construction machine in a…
An augmented-reality system is combined with a surveying system to make measurement and/or layout at a construction site more efficient. A reflector can be mounted to a wearable device having an augmented-reality system. A total station can be used to track a reflector, and truth can be transferred…