Hexagon Technology Center Patente

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The invention relates to a multi-beam distance measuring device (1, 1'), configured for timing the time-of-flight of transmission pulses (16) by using a programmable integrated circuit (6), e.g. a field-programmable gate array (FPGA), which has a plurality of parallel delay lines (7). Each delay line (7) has a plurality of delay elements (22), which sequentially propagate an input signal (200) of the respective delay line (7), wherein each of the delay elements (22) is configured to provide a binary output as a function of the input signal (200). Time measurement of a signal change of a return signal (8) is carried out by sampling binary outputs of a respective delay line (7) and simultaneous consideration of the sampled binary outputs at a certain point in time, by further taking into account individual time delays of the delay elements (22). The measurement device (1, 1') further comprises a reference generator (11) configured to generate a reference signal (12) having a known reference signal change, wherein the reference signal (12) is asynchronous to a sampling clock (24) driving the sampling of the binary outputs. A selector (13) is used to alternatingly feed individual ones of the delay lines (7) with the reference signal (12) instead of a return signal (8). By carrying out a statistical analysis of the sampled binary outputs that correspond to the reference signal (12) that propagated through a delay line (7) individual time delays of the delay elements (22) of this delay line (7) are determined, which individual time delays are taken into in the time measurement of the signal change when the delay line (7) is fed with one of the return signals (8).

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Method for providing information about an object (5) using an unmanned aerial vehicle with a data acquisition unit, comprising determining positional data with reference to the object (5), the positional data being referenced to a measuring coordinate system, providing a digital template (11) regarding the object (5), the template (11) at least partly representing the object (5) in coarse manner, and referencing the template (11) with the positional data so that the template (11) corresponds as to its spatial parameters to the object in the measuring coordinate system. Moreover, a spatial position of at least one data acquisition point (12) or section is related to the object (5) is derived based on at least the positional data and/or the template (11), the unmanned aerial vehicle is controlled in a manner such that it approaches the at least one data acquisition point (12) or section and object information is acquired as to at least a part of the object (5) according to the at least one data acquisition point (12) or section by triggering the data acquisition unit depending on fulfilling a defined distance criterion, the distance criterion defining a spatial relation between an actual position of the unmanned aerial vehicle and the at least one data acquisition point (12) or section.

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A geodetic surveying instrument (1) comprising a sighting unit (23) for aiming in a target direction (t) at a measurement target point, a defined axis of rotation for setting the target direction (t) by rotation about the axis (v, h), an optical angle encoder (2) for determining the target direction (3), having a code carrier (3) and at least one image sensor (4) for capturing an image of code -denoted code image (11)- of the code carrier (3), whereby the code carrier (3) and image sensor (4) are rotatable relative to one another about the defined axis of rotation (v) as a first degree of freedom. The controller (25) is configured to determine the target direction (t) based on evaluation of a code image (11) of the image sensor (4). The target direction (t) is determined not only with respect to a rotational position in said first degree of freedom of code carrier (3) relative to image sensor (4) but also with respect to a further position in at least a further degree of freedom of code carrier (3) relative to image sensor (4).

A computer-implemented method (100) for generating anonymized 3D data of a surrounding, the surrounding comprising a multitude of 3D features of a plurality of feature categories, the plurality of feature categories including at least a first feature category, 3D features of which being designated for anonymization, the method comprising providing (110) 3D data of the surrounding, the 3D data comprising information about a mesh or a point cloud comprising 3D patterns of a plurality of pattern types, the 3D patterns corresponding to the 3D features in the surrounding, wherein a first pattern type corresponds to the first feature category, the method comprising identifying (120) at least a first portion of the mesh or point cloud that comprises at least a first 3D pattern of the first pattern type, the first portion of the mesh or point cloud corresponding to a first data portion of the 3D data, obtaining (130) at least one alternative 3D pattern for the first pattern type, each alternative 3D pattern comprising pre-defined or generated 3D data, and replacing (140), using an anonymization algorithm, the first data portion with alternative 3D data comprising at least one alternative 3D pattern for the first pattern type to generate anonymized 3D data.

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The invention pertains to a computer system (200) for identifying capabilities of a group of electronic devices (251-253), each device having one or more capabilities, at least a first subset of the devices of the group being connected to a middle-ware platform (10) by means of a data link, wherein the system comprises at least a device catalog (260) listing known devices and capabilities of each listed device, and an observer module (230) having access to data streams between the middle-ware platform and the subset of the devices and being configured to observe the data streams, wherein the observer module is configured to identify, based on the observed data streams and using artificial intelligence, capabilities of the devices of the subset, wherein the device catalog is updated with the identified capabilities. The invention also pertains to a computer-implemented method using such a computer system for identifying capabilities of a group of devices and to a computer programme product for performing said method.

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