Sensor ID Association via Reception Strength and Segmentation
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Solution Overview
Problem
Existing sensor systems face high computational complexity and power consumption when associating installation positions with sensor IDs, particularly in IoT applications where manual association of sensor IDs with installation positions is labor-intensive and inefficient.
Innovation Solution
An information processing apparatus and method that reduces power consumption by using reception strength information and installation-position relations to associate sensor IDs with their corresponding installation positions, employing a search tree generation and association processing that differentiates between detection-complete and detection-incomplete sensors, thereby simplifying the association process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the position estimating apparatus lists all combinations of installation positions and wireless communication device IDs and computes contradictions in all combinations, then the association between installation positions and device IDs can be determined, but the computational complexity and power consumption increase significantly
Solution Approach 1:
The patent segments the sensor system into detection-complete sensors (those that have detected the object) and detection-incomplete sensors (those that have not). This segmentation allows the system to process only the necessary subset of sensors for association, rather than all sensors uniformly, thereby reducing computational complexity and power consumption while maintaining association accuracy for the critical detection-complete sensors
Solution Approach 2:
The patent applies partial action by performing association processing only for detection-complete sensors that have detected the object, rather than processing all sensors in the system. This selective processing approach reduces the overall computational burden and power consumption while ensuring accurate association for the sensors that provide detectable information
2Measurement precision
If manual association of sensor IDs with installation positions is performed, then the association can be established, but the manual work and time required increase with the number of sensors
Solution Approach 1:
The patent implements self-service by enabling sensors to automatically associate their own IDs with installation positions through the association processing unit. The system uses detection information and reception strength information to autonomously establish associations without requiring manual intervention, thereby reducing initial setting time and labor while maintaining accurate associations
Solution Approach 2:
The patent applies preliminary action by pre-establishing the path information and detection-order information before the actual association processing. The search tree is constructed in advance with path segments and detection orders, allowing the association processing unit to quickly match sensor IDs to installation positions without time-consuming manual configuration
Data Source
AI summary
An information processing apparatus for associating an identifier of each of a plurality of sensors and a known installation position of a corresponding one of the plurality of sensors receives an identifier transmitted by a detection-complete sensor that has detected an object; associates, in a first path that is a part of the path, the identifier with an installation position of the detection-complete sensor in a reception order of a plurality of the identifiers; receives, from a detection-incomplete sensor that has not detected the object, reception strength information including an identifier of the detection-incomplete sensor and a reception strength of a signal of another one or more of the plurality of sensors in the detection-incomplete sensor; and associates, for the detection-incomplete sensor installed on a second path that is a rest of the path, the identifier of the detection-incomplete sensor and an installation position of the detection-incomplete sensor.