Beacon-Assisted Cooperative Positioning for Low-Performance Devices
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Solution Overview
Problem
Low-performance devices struggle to utilize high-performance positioning technologies due to hardware limitations and environmental challenges, such as radio signal interference and multipath issues, leading to inaccurate location estimation.
Innovation Solution
A method and apparatus for cooperative positioning that allows low-performance devices to indirectly use high-performance positioning by scanning beacon signals, determining peripheral devices within a reference radius, requesting location and reliability, and calculating the target device's location based on received data from multiple peripheral devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-performance positioning technology is used, then positioning accuracy is improved, but device hardware requirements increase
Solution Approach 1:
The patent introduces high-performance peripheral devices as intermediaries that perform complex positioning calculations on behalf of low-performance target devices. The peripheral devices with high-performance chipsets execute the positioning algorithms and return results to target devices, allowing accurate positioning without requiring the target device itself to have high-performance hardware.
2Ease of manufacture
If low-performance devices are used, then device cost is reduced, but positioning accuracy deteriorates
Solution Approach 1:
The patent enables low-cost target devices to achieve high positioning accuracy by utilizing peripheral devices as computing intermediaries. The target device maintains simple, low-cost hardware while leveraging the computational power of peripheral devices to perform accurate positioning calculations, thus achieving both cost reduction and maintained accuracy.
3Area of stationary object
If radio signal-based positioning is used, then positioning coverage is improved, but positioning accuracy deteriorates in NLOS environments
Solution Approach 1:
The patent uses peripheral devices as intermediaries that can process positioning data more effectively in NLOS conditions. These high-performance devices implement advanced algorithms that compensate for signal distortion and multipath effects, maintaining accuracy in indoor and underground environments where direct radio signal positioning fails.
Data Source
AI summary
A method and apparatus for cooperative positioning is disclosed herein. A method for cooperative positioning performed by a target device includes: scanning a beacon signal transmitted by at least one peripheral device; determining whether at least one peripheral device exist within a reference radius based on the beacon signal; when the at least one peripheral device is within the reference radius, transmitting a cooperative positioning request to the at least one peripheral device; receiving, in response to transmitting the cooperative positioning request, location of the at least one peripheral device and a degree of reliability for the location of the at least one peripheral device; and determining a location of the target device based on the location and the degree of reliability.