Handheld GNSS Device Antenna Integration
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Solution Overview
Problem
Conventional portable GNSS devices face challenges with high precision, portability, reliability, and durability due to the need for multiple units and external positioning equipment, which complicates precise positioning and increases manufacturing costs.
Innovation Solution
A handheld GNSS device with a single housing integrating a GNSS antenna, communication antennas, orientation circuitry, imaging circuitry, and positioning circuitry, allowing for minimal mutual interference and eliminating the need for external positioning tools, featuring a display screen for user guidance and a compact design for improved usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple units and external positioning equipment are used for high-precision GNSS measurements, then measurement precision is improved, but device complexity and portability are worsened
Solution Approach 1:
The patent combines multiple previously separate components (GNSS antenna, communication antenna, orientation circuitry, imaging circuitry, and positioning circuitry) into a single integrated handheld device. This merging eliminates the need for multiple separate units and external positioning equipment, thereby reducing system complexity while maintaining high-precision positioning capability through the coordinated operation of integrated components.
Solution Approach 2:
The handheld device performs multiple functions within a single unit: it conducts GNSS signal reception for positioning, receives differential correction data via communication antennas, determines device orientation using orientation circuitry, captures images with imaging circuitry, and processes positioning data. This multi-functionality eliminates the need for separate specialized equipment for each function, reducing overall system complexity.
2Measurement precision
If multiple units and external equipment are used for GNSS positioning, then measurement precision is improved, but ease of operation is worsened
Solution Approach 1:
By integrating all necessary positioning components into a single handheld device, the system eliminates the need to transport and set up multiple separate units and external equipment. Users simply need to carry one device to perform high-precision positioning, significantly improving portability and ease of operation while maintaining measurement precision.
3Volume of moving object
If GNSS antenna and communication antenna are placed close together, then device compactness is improved, but reliability is worsened due to mutual interference
Solution Approach 1:
The patent applies different spatial arrangements to different antenna types based on their specific requirements. The GNSS antenna is positioned to optimally receive satellite signals, while communication antennas are positioned to receive differential correction data. By optimizing the local placement and orientation of each antenna type, the system minimizes mutual interference while maintaining a compact overall device form factor.
Solution Approach 2:
The housing structure serves as an intermediary element that physically separates and positions the GNSS antenna and communication antennas at optimized locations. This structural mediation allows the antennas to be integrated within the compact device while maintaining sufficient separation to reduce mutual interference, thereby preserving signal reception reliability.
Data Source
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AI summary
A handheld GNSS device for determining position data for a point of interest is provided. The device includes a housing, handgrips and a display screen for displaying image data and orientation data to assist a user in positioning the device. The device further includes a GNSS antenna and at least one communication antenna. The GNSS antenna receives position data from satellites. The communication antenna(s) receive positioning assistance data related to the position data from a base station. Further, the device includes orientation circuitry for generating orientation data, imaging circuitry for obtaining image data concerning the point of interest for display on the display screen, and positioning circuitry for determining a position for the point of interest based on at least the position data, the positioning assistance data, the orientation data, and the image data.