Shared Sensor Node Monitoring for Multi-Facility Abnormality Detection
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Solution Overview
Problem
Existing facility monitoring systems require a large number of vibration sensors to detect anomalies in multiple operating devices, making real-time monitoring difficult due to the complexity of detecting abnormality locations and causes across various factors.
Innovation Solution
A facility state monitoring system that uses a common sensor node equipped with multiple sensors to transmit data on facility states, allowing the system to learn normal operations and detect abnormalities without the need for individual vibration sensors on each monitoring target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple vibration sensors are deployed to monitor each operating device, then measurement precision and reliability improve, but device complexity and installation cost increase significantly
Solution Approach 1:
The patent applies universality by using a single sensor node that can monitor multiple different operating devices (conveyor belts, mixers, ovens, etc.) through wireless sensor data collection. The sensor node serves multiple functions: detecting vibrations from various devices, transmitting data wirelessly, and enabling centralized monitoring without requiring device-specific sensor installations.
2Device complexity
If a single sensor node is used to monitor multiple facilities, then device complexity and installation cost reduce, but measurement precision and reliability deteriorate
Solution Approach 1:
The patent introduces an intermediary element - the wireless communication unit and centralized monitoring system - that enables a single sensor node to effectively monitor multiple facilities. The sensor node collects vibration data from various operating devices and transmits it wirelessly to a central system, which processes and analyzes the data to detect abnormalities, thereby maintaining measurement precision without requiring multiple physical sensors.
Data Source
AI summary
In a facility state monitoring system, a sensor node includes a sensor that outputs, as sensor data, data indicating the state of a facility as a monitoring target, a communication unit, and a power supply unit that supplies power to the sensor and the communication unit. The sensor node is commonly used by multiple monitoring targets. A receiver receives the sensor data transmitted from the communication unit. A state detection unit receives the sensor data received by the receiver, and learns, as learning data, normal states of the monitoring targets based on normal sensor data corresponding to normal operations of the monitoring targets. In response to the receiver receiving the sensor data transmitted from the sensor node after learning, the state detection unit compares states of the monitoring targets indicated by the sensor data with the learning data to detect an abnormality occurrence or symptom in the monitoring targets.