Integrated Total Station GNSS Layout for Signal-Available Positioning
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Solution Overview
Problem
Existing GNSS devices face challenges with high-precision positioning due to the need for bulky external equipment, such as tripods, and the interference between GNSS and communication antennas, which affects portability, reliability, and durability, while being expensive to manufacture and assemble.
Innovation Solution
A handheld GNSS device with integrated GNSS and communication antennas, orientation circuitry, imaging circuitry, and positioning circuitry, featuring a housing with handgrips and a display screen, allowing precise positioning without external equipment, and minimizing antenna interference through substantial separation of antenna patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple separate units are used to house GNSS components, then measurement precision is improved, but device complexity and portability are worsened
Solution Approach 1:
The patent combines the GNSS receiver, total station, and communication antennas into a single integrated unit. The housing contains both the GNSS antenna for satellite signal reception and the communication antenna for data transmission, eliminating the need for separate external equipment and cables while maintaining high positioning accuracy through integrated signal processing
2Measurement precision
If external positioning equipment is used, then measurement precision is improved, but ease of operation and portability are worsened
Solution Approach 1:
The device merges the GNSS receiver, total station functionality, and communication capabilities into one handheld unit that requires no external tripods, leveling equipment, or cable connections. The integrated design allows users to operate the device immediately upon power-up, eliminating complex setup procedures while maintaining centimeter-level positioning accuracy
3Volume of moving object
If GNSS and communication antennas are placed close together, then device compactness is improved, but reliability is worsened due to antenna interference
Solution Approach 1:
The patent applies local quality by providing each antenna with its dedicated isolation structure within the compact housing. The GNSS antenna has its own ground plane and shielding, while the communication antenna has separate isolation elements. This localized isolation ensures reliable signal reception for both functions despite their close proximity in the integrated device
Data Source
AI summary
The present disclosure relates generally to a portable Global Navigation Satellite System (GNSS). An exemplary surveying system comprises: a total station; a GNSS device; a coupling mechanism for coupling the GNSS device with the total station; wherein the system is configured to: determine, based on one or more outputs from the GNSS device, whether a set of GNSS signals is available; in accordance with a determination that the set of GNSS signals is available, determine a position of a point based on the set of GNSS signals; in accordance with a determination that the set of GNSS signals is not available, automatically determine a position of the point based on an angular measurement and a distance measurement with respect to the point obtained by the total station.