Sensor Correspondence Verification via Position Comparison
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Solution Overview
Problem
Existing IoT systems face challenges in determining the correspondence relationship between sensors and sensing targets, especially when the position of the sensing target dynamically changes, leading to discrepancies in sensor data collection.
Innovation Solution
A method that compares the position information of multiple sensors attached to a sensing target to determine if a discrepancy in the correspondence relationship exists by calculating the distance between them and setting a threshold value, thereby preventing incorrect data management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensor position is determined using beacon-based positioning, then the position of the sensor can be estimated, but it is not possible to determine the correspondence relationship between the sensing target and the sensor when the position of the sensing target dynamically changes
Solution Approach 1:
The system segments the sensing target into multiple identifiable components: a fixed attachment portion and a detachable sensor. By positioning the sensor relative to the fixed portion rather than relying solely on dynamic beacon positioning, the system creates a stable reference frame that maintains correspondence relationship reliability even when the overall target position changes dynamically.
2Reliability
If pairing processing is implemented between sensor and individual identification tag, then the correspondence relationship can be determined, but extra processing increases power consumption which is problematic for battery-driven sensors
Solution Approach 1:
The fixed attachment portion serves a dual function: it acts as both the identification marker and the positioning reference for the sensor. This self-service approach eliminates the need for separate pairing processing between the sensor and individual identification tag, as the sensor can directly determine correspondence by detecting the fixed portion's position, thereby reducing power consumption while maintaining reliability.
Solution Approach 2:
The system merges the identification function and positioning reference function into a single fixed attachment portion. By combining these functions, the system eliminates the need for separate pairing protocols and additional communication processing, thereby reducing power consumption while ensuring reliable correspondence relationship determination.
3Adaptability or versatility
If multiple sensors are attached to the sensing target, then comprehensive data collection is enabled, but discrepancies in correspondence relationship may occur leading to incorrect data management
Solution Approach 1:
The system performs preliminary positioning by attaching the sensor to the fixed portion of the sensing target before data collection begins. This preliminary action establishes a known correspondence relationship that serves as a baseline, allowing the system to verify and maintain data management accuracy even when multiple sensors are deployed and the target moves dynamically.
Data Source
AI summary
A method for determining a correspondence relationship between a sensing target and a sensor is a correspondence relationship determination method for determining whether or not a correspondence relationship between a sensing target and a sensor attached to the sensing target is correct. The method includes acquiring position information of a first sensor fixed and attached to the sensing target, acquiring position information of a second sensor detachably attached to the sensing target, and obtaining a distance by comparing the position information of the first sensor and the position information of the second sensor, and determining that the correspondence relationship between the sensing target and the second sensor indicates discrepancy when the distance is equal to or more than a threshold value.