Wireless Tag Environment Evaluation Device for Moving Stationary Detection
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Solution Overview
Problem
Determining whether a measurement environment is suitable for distinguishing between moving and stationary wireless tags is challenging, as existing methods require individual evaluation of each tag, which is cumbersome and inefficient.
Innovation Solution
A tag measurement environment evaluation device that calculates moving tag evaluation values for multiple wireless tags, determines a representative value, and assesses the environment's suitability based on the inter-distribution distance between moving and stationary tags, allowing for easier and more accurate determination of tag detection capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual evaluation of each tag is performed to determine measurement environment suitability, then measurement precision is improved, but device complexity and time consumption increase
Solution Approach 1:
The patent combines multiple tag evaluation values into a single representative value (e.g., average or median) to characterize the overall measurement environment. This merging approach maintains measurement precision by capturing environmental characteristics while significantly reducing the complexity of evaluating each tag individually.
Solution Approach 2:
The patent uses radio wave characteristics (phase, amplitude, frequency) as proxies or copies of tag motion states. By analyzing these measurable wave properties rather than directly evaluating complex tag behaviors, the system achieves accurate environment assessment with simpler measurement processes.
2Measurement precision
If individual evaluation of each tag is performed, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent aggregates evaluation results from multiple tags into a representative value that characterizes the measurement environment. This combining approach maintains the precision needed for accurate environment assessment while dramatically reducing the time required compared to evaluating each tag separately.
Solution Approach 2:
The patent evaluates a plurality of tags and uses a representative value derived from them, which may not require processing every single tag in detail. This partial action approach achieves sufficient measurement precision for environment evaluation without the time cost of exhaustive individual tag analysis.
3Productivity
If representative value calculation from multiple tags is used, then productivity is improved, but measurement precision may deteriorate
Solution Approach 1:
The patent combines multiple tag evaluation values using statistical methods (average, median, or mode) to create a representative value. This merging process improves productivity by enabling environment-wide assessment while preserving measurement precision through robust statistical aggregation that captures true environmental characteristics.
Solution Approach 2:
The patent changes the parameter representation from individual tag-level data to aggregated representative values. This parameter transformation improves evaluation efficiency while maintaining accuracy by using statistical parameters that reflect the overall measurement environment rather than isolated individual cases.
Data Source
AI summary
A tag measurement environment evaluation device includes a processor and a memory storing a program. The program is configured to, when executed by the processor, cause the processor to determine a moving tag evaluation value of each of a plurality of wireless tags based on a radio wave transmitted from each of the wireless tags and received by a tag reader configured to communicate with each of the wireless tags, and determine whether a measurement environment is suitable for a moving tag detection based on the moving tag evaluation values.