Backscatter Electronic Tags for Positioning in Poor Coverage
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Solution Overview
Problem
Existing wireless positioning technologies face challenges in accurately determining the position of devices, particularly in environments with poor network coverage, due to limitations in signal bandwidth and antenna configuration, especially for zero-power or low-power electronic tags.
Innovation Solution
A communication method utilizing zero-power electronic tags that perform backscattering communication to send signals for measurement, allowing devices to determine position information by measuring these signals, thereby improving positioning accuracy even in poor network environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional wireless positioning technology is used, then positioning function is provided, but positioning accuracy deteriorates in environments with poor network coverage
Solution Approach 1:
The patent introduces electronic tags as intermediary objects between the positioning system and the target device. These tags are deployed in the environment and reflect positioning signals, enabling accurate position determination even when direct network coverage is poor. The tags act as mediators that facilitate positioning in areas where traditional direct communication fails.
Solution Approach 2:
The patent uses electronic tags that copy or reflect positioning signals from multiple directions. By having multiple tags reflect signals back to the positioning device, the system creates redundant measurement paths, improving accuracy through multiple copies of the positioning information from different spatial locations.
2Device complexity
If zero-power electronic tags are used, then deployment cost and complexity are reduced, but signal bandwidth and antenna configuration capabilities are limited
Solution Approach 1:
The patent divides the positioning system into separate functional components: simple electronic tags for signal reflection and positioning nodes for signal processing and measurement. This segmentation allows tags to remain simple and low-cost while the sophisticated processing capabilities are concentrated in the positioning nodes, resolving the contradiction between tag simplicity and system measurement precision.
Solution Approach 2:
The electronic tags operate autonomously without requiring power sources or complex processing. They passively reflect incoming positioning signals and provide measurement assistance, enabling deployment of large numbers of tags with minimal infrastructure. This self-service capability reduces deployment complexity while maintaining measurement precision through the collective action of multiple tags.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method enhances positioning accuracy by leveraging battery-free, low-cost electronic tags that can be deployed extensively, reducing inaccuracies in environments with limited network coverage.
Implementation Method 1
A communication method utilizing zero-power electronic tags that perform backscattering communication to send signals for measurement
Data Source
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AI summary
Embodiments of the present application provide a communication method, apparatus and device, and a storage medium, a chip, a product and a program. The method comprises: a first electronic tag sends a first signal, the first signal being used for a first device to perform measurement to obtain a first measurement result or being used for a second device to perform measurement to obtain a second measurement result, and the first measurement result or the second measurement result being used for determining location information of the second device.