Hexagon has filed a patent for an automatic stationing functionality in a geodetic survey instrument. The instrument includes a targeting unit, IMU, imaging sensor unit, communication interface, and computing unit. The functionality calculates coarse and fine poses based on IMU, VPS, and reference marker data. GlobalData’s report on Hexagon gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Hexagon, AI assisted CAD was a key innovation area identified from patents. Hexagon's grant share as of January 2024 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Automatic stationing functionality of a geodetic survey instrument
A geodetic survey instrument has been patented with a range of innovative features aimed at enhancing accuracy and efficiency in surveying tasks. The instrument includes a targeting unit for object targeting, an inertial measurement unit for recognizing instrument relocation, an imaging sensor unit for visual positioning, and a communication interface for receiving design data of the environment. The instrument also features a reference marker recognition functionality, a base unit with motorized rotation and tilting axes, and a distance measuring beam for precise measurements. Additionally, the instrument can emit search radiation, detect reflected search radiation, and identify new reference markers for improved targeting accuracy.
Furthermore, the survey instrument is equipped with a positioning system utilizing GNSS, WLAN, cellular, or Bluetooth technology for tracking pose data. It can automatically recognize survey tasks, receive operator input, calculate visibility of reference markers, and provide guidance instructions for reaching specific locations. The instrument can be mounted on a transport vehicle for added convenience. The patented method for identifying the fine pose of the instrument involves recognizing relocation, calculating coarse pose, targeting reference markers, and determining fine pose based on measurements. The method also includes targeting new visible reference markers, updating design data, and utilizing weighting functions for visual features based on survey tasks and environment information. Overall, the patented geodetic survey instrument and method offer a comprehensive solution for accurate and efficient surveying tasks.
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