Antenna Movement Control for Wireless Tag Range Determination
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Solution Overview
Problem
Existing communication systems face challenges in accurately determining the positional relationship of a wireless tag with respect to predetermined ranges, particularly when the tag is on the edge of or protrudes between ranges, leading to incorrect classification.
Innovation Solution
A communication apparatus with a movement control unit, acquisition unit, and determination processing unit that controls the antenna's movement relative to the wireless tag, acquires phase data at multiple positions, and uses a trained model to determine whether the tag is within a first range, second range, or third range, thereby improving accuracy by avoiding misclassification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the antenna is moved to detect phase data for determining wireless tag position, then the determination capability is improved, but the measurement precision deteriorates when the tag is on the edge of ranges or protrudes between ranges
Solution Approach 1:
The patent divides the detection area into multiple ranges (first range, second range, and third range between them) and uses phase data from multiple antenna positions to determine tag location. By segmenting the space and using multiple measurement points, the system can accurately determine whether a tag is in the first range, second range, or the intermediate third range, resolving the ambiguity at boundaries.
Solution Approach 2:
The patent introduces a new dimension of analysis by collecting phase data at multiple antenna positions and using the changes in phase across different spatial dimensions. This multi-dimensional approach allows the system to distinguish between tags at the edge of ranges and tags in the intermediate third range by analyzing phase variations from multiple directions simultaneously.
2Area of stationary object
If the first range and second range are placed close together or in contact, then the space utilization is improved, but the determination accuracy deteriorates due to phase similarity at the boundary
Solution Approach 1:
The patent introduces a third range as an intermediary zone between the first and second ranges. This intermediate range acts as a buffer that resolves the boundary ambiguity. When a tag is detected in this third range through phase data analysis, the system can clearly distinguish whether the tag belongs to the first range or second range, eliminating misclassification even when the first and second ranges are closely positioned.
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 system enhances the accuracy of wireless tag positioning by correctly distinguishing between ranges, preventing erroneous classification and prompting user input when the tag is within a difficult-to-determine location, thus improving operational efficiency.
Implementation Method 1
the antenna to detect a phase of the wireless tag. The apparatus determines which range of the first range and the second range the wireless tag is within based on an aspect of the detected phase
Data Source
AI summary
A communication apparatus according to an embodiment includes a movement control unit, an acquisition unit, and a determination processing unit. The movement control unit controls movement of a relative position of an antenna with respect to a wireless tag. The acquisition unit acquires, based on a radio wave of the wireless tag received by the antenna, a plurality of pieces of tag data on the wireless tag at a plurality of relative positions of the antenna. The determination processing unit determines, based on the plurality of pieces of tag data on the wireless tag, which range among a first range, a second range, and a third range between the first range and the second range the wireless tag is within.