Sensor Device Trigger Signal Synchronization
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Solution Overview
Problem
Existing IoT systems require a host computer to synchronize measurement timings across multiple communication devices, increasing system complexity and cost.
Innovation Solution
A sensing system comprising multiple sensor devices, each equipped with a trigger sensor to measure a signal value and a target sensor to start measuring a physical quantity when the signal value meets a predetermined condition, allowing for synchronization without a host computer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a host computer is used to synchronize measurement timings of multiple communication devices, then measurement timing synchronization is achieved, but system complexity and scale increase
Solution Approach 1:
The patent extracts the host computer from the system by enabling each sensor device to autonomously detect trigger signals and synchronize measurements independently. This eliminates the centralizing control component while maintaining synchronization capability through distributed trigger signal detection.
Solution Approach 2:
Each sensor device serves itself by autonomously detecting the trigger signal and initiating measurements based on its own detection results. This self-service mechanism eliminates dependency on external host computer control, reducing system complexity while achieving synchronization.
2Measurement precision
If a host computer is used to synchronize measurement timings, then timing coordination is achieved, but system cost increases
Solution Approach 1:
The host computer is extracted from the system architecture, replacing it with autonomous trigger signal detection capabilities embedded in each sensor device. This eliminates the need for expensive centralized control hardware and reduces overall system cost.
Solution Approach 2:
The patent uses simple, inexpensive trigger signal detection mechanisms within each sensor device rather than expensive host computer infrastructure. This approach uses affordable components to achieve the same synchronization function at lower cost.
Data Source
AI summary
To synchronize, in a system in which a plurality of devices perform measurement, measurement timings with each other with a simple configuration. A sensing system includes a plurality of sensor devices. The sensor devices each include a trigger sensor and a target sensor. In the sensor device, the trigger sensor measures a signal value of a trigger signal. Also, in the sensor device, the target sensor starts to measure a physical quantity when the signal value measured by the trigger sensor satisfies a predetermined condition.