Management Terminal Time Correction for Multi-Manufacturer Sensor Networks
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Solution Overview
Problem
Communication delays occur when management terminals receive sensing information from sensor terminals, affecting the accuracy of time correspondence in communication systems, especially when multiple manufacturers are involved, due to varying hardware and software configurations.
Innovation Solution
The system determines communication delay times based on hardware and software configurations of both sensor and management terminals, using a communication delay-causing combination table to correct individual time pairs and update a time correspondence map, ensuring accurate information detection times across multiple manufacturers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If communication delay correction is performed using a fixed time value, then the correction process is simple, but the accuracy of time correspondence deteriorates when multiple manufacturers are involved
Solution Approach 1:
The patent applies local quality by creating manufacturer-specific time correspondence maps. Each manufacturer's sensor terminals have their own dedicated time correction map stored in the management terminal, allowing customized time delay correction for each manufacturer's hardware and software configuration. This resolves the contradiction by making the correction process slightly more complex (storing multiple maps) but significantly improving time correspondence accuracy for multi-manufacturer environments.
Solution Approach 2:
The patent changes the parameter of time correction from a fixed universal value to variable manufacturer-specific values. The management terminal stores multiple time correspondence maps with different correction parameters for different manufacturers, and selects the appropriate map based on the sensor terminal's manufacturer. This resolves the contradiction by accepting increased data storage complexity in exchange for achieving accurate time correspondence across diverse manufacturer configurations.
2Measurement precision
If individual time correction is performed for each sensor terminal, then time correspondence accuracy is improved, but the system complexity increases
Solution Approach 1:
The patent applies universality by creating a standardized time correspondence map structure that can be universally applied to multiple sensor terminals from the same manufacturer. Instead of creating unique correction parameters for each individual sensor terminal, the system creates one representative time correspondence map per manufacturer that can be universally used for all sensor terminals from that manufacturer. This resolves the contradiction by reducing individual terminal complexity while maintaining accurate time correction through manufacturer-level standardization.
Data Source
AI summary
A communication system includes a plurality of sensor terminals each having an individual time and a management terminal having a reference time. The management terminal associates the individual time with the reference time at which the individual time was received and stores the associated times as a time pair. The management terminal determines a communication delay time using the configuration information of the hardware of the sensor terminal, the version of the software of the sensor terminal, the configuration information of the hardware of the management terminal, the version of the software of the management terminal, and a communication delay-causing combination table. The management terminal corrects the correspondence relationship between the individual time and the reference time in accordance with the communication delay time and corrects information detection time received from each of the plurality of the sensor terminals based on the corrected correspondence relationship.