Leica Geosystems Ag

Hexagon Geosystems Services Ag

Luciad Nv

Jürgen Dold

Simon Mark

Klaus Bereuter

Charles Leopold Elisabeth Dumoulin

Roman Steffen

Benjamin Müller

Burkhard Böckem

Jochen Scheja

Lukas Heinzle

Roland Zumbrunn

Daniel Moser

Matthias Wieser

Albert Markendorf

Thomas Harring

Pascal Strupler

Raimund Loser

Daniel Balog

Joris Schouteden

Burkhard BÖCKEM

Stephen Kyle

A laser scanner and a system with a laser scanner for measuring an environment. The laser scanner includes an optical distance measuring device, a support, a beam steering unit rotatably fixed to the support which rotates around a beam axis of rotation. The beam steering unit includes a mirrored surface which deflects radiation used in the optical distance measurement and an angle encoder for recording angle data. The optical distance measurement is performed by a progressive rotation of the beam steering unit about the beam axis of rotation and the continuous emission of a distance measurement radiation, the emission being made through an outlet area arranged in the direction of the mirrored surface on the support, the receiving optics for receiving radiation are arranged on the support, and wherein the outlet area has a lateral offset with respect to the optical axis of the receiving optics.

Laser scanner

The present invention relates to three-dimensional reality capturing of an environment, wherein data of various kinds of measurement devices are fused to generate a three-dimensional model of the environment. In particular, the invention relates to a computer-implemented method for registration and visualization of a 3D model provided by various types of reality capture devices and/or by various surveying tasks.

Digital reality platform providing data fusion for generating a three-dimensional model of the environment

A surveillance system for detecting an object within a monitored infrastructure and to a hybrid 3D surveying device, wherein a LiDAR device is configured that scanning is carried out with respect to two essentially orthogonal axes and wherein the LiDAR device comprises a cover mounted on the base, such that the base and the cover form an enclosure that encloses all moving parts of the LiDAR device, wherein the cover is configured to be opaque for visible light and translucent for the wavelength range of the LiDAR transmission radiation. The system further comprises a computing unit configured for processing the LiDAR measurement data to generate a 3D point cloud of the monitored infrastructure, and an object detector configured for classification of the object based on the 3D point cloud.

3D surveillance system comprising LiDAR and multispectral imaging for object classification

A flying sensor comprising an unmanned aerial vehicle (UAV) and at least one profiler mounted on the UAV, the profiler comprising a base, a scanning unit for providing (LiDAR) data, the scanning unit mounted on the base and comprising a shaft carrying a deflector and being mounted in the scanning unit and rotatable, a transmitter transmitting a transmission beam, a first receiver configured for receiving a first reception beam reflected from the setting via the deflector, and an electric port configured for connecting the profiler to the UAV, and comprising a data interface and a power interface, and wherein the UAV comprises a visual sensor providing visual data, and comprising one or more cameras, a pose sensor for providing pose data, and a computer to compute a 3D point cloud based on the LiDar data and a Simultaneous Localisation and Mapping (SLAM) algorithm using the visual and pose data.

Flying sensor

Some embodiments include a surface surveying device, in particular profiler or 3D scanner, for determining a multiplicity of 3D coordinates of measurement points on a surface, comprising a scanning unit and means for determining a position and orientation of the scanning unit, a carrier for carrying the scanning unit and at least part of the means for determining a position and orientation, and a control and evaluation unit with a surface surveying functionality. The carrier is embodied as an unmanned aerial vehicle which is capable of hovering and comprises a lead, the latter being connected at one end thereof to the aerial vehicle and able to be held at the other end by a user, wherein the lead is provided for guiding the aerial vehicle in the air by the user and the position of the aerial vehicle in the air is predetermined by the effective length of the lead.

Surface surveying device for determining 3D coordinates of a surface

A measuring system includes a laser tracker (), a target point marked by a reflector (), a surveying apparatus (), and an arithmetic and control unit (). 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 () and the reflector (). 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 () 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 ().

Tracking method and measuring system comprising a laser tracker

A measuring system includes a laser tracker (), a target point marked by a reflector (), a surveying apparatus (), and an arithmetic and control unit (). 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 () and the reflector (). 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 () 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 (). If the measuring beam is not directed onto the reflector, 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 () of the survey camera ().

A measurement system for determining six degrees of freedom (&#x3b1;, &#x3b2;, d, &#x3c6;, &#x3c7;, &#x3c8;) of a reflector () or of an object () on which the reflector is arranged, comprises an angle- and distance measurement apparatus (), e.g. a laser tracker, operating with a laser beam as a measurement beam (). The reflector () is designed for a parallel reflection of the measurement beam () and has an apical opening or surface (), in a manner such that a part of the measurement beam () directed onto the reflector (), passes through the apical opening or surface (), and is incident on a light-sensitive surface () arranged behind the reflector apex. Five degrees of freedom (&#x3b1;, &#x3b2;, d, &#x3c6;, &#x3c7;) of the reflector () or the object () are computed from measurement data produced by the angle- and distance measurement apparatus () and by the light-sensitive surface ().

Growing community of inventors

Sempach, Switzerland

Jürgen Dold