Event-Triggered Remote Device Communication for Electrical Network Fault Detection
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Solution Overview
Problem
In electrical networks, the detection of faults often leads to multiple devices transmitting redundant information, causing communication bottlenecks and high costs due to excessive wiring, with existing systems typically receiving information only after the event and late in solving the problem.
Innovation Solution
A remote device activates a communication channel for sampled measurement data between remote devices and central devices only when a phenomenon of interest is detected or requested, using 9-2LE or 9-2 communication channels and GOOSE messages to efficiently transfer data, thereby reducing unnecessary data transmission and enabling quick communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If bus communication is used to connect multiple locations, then the need for wiring is reduced, but the communication channel becomes a bottleneck due to large amounts of sampled measured values transmitted simultaneously
Solution Approach 1:
The patent implements dynamic activation of communication channels based on event detection. Remote devices transition between inactive and active states, activating communication channels only when phenomena of interest are detected or requests are received, making the communication system adaptive rather than static
Solution Approach 2:
The patent employs periodic sampling of measured values combined with event-triggered transmission. Instead of continuous transmission, the system samples measurements periodically and activates communication only when changes exceed thresholds or events occur, reducing overall communication load while maintaining data freshness
2Reliability
If multiple devices transmit fault information simultaneously, then fault detection coverage is improved, but redundant information multiplies and overloads the communication network
Solution Approach 1:
The patent extracts and transmits only the essential fault information rather than complete redundant data sets from multiple devices. The system identifies and transmits only the critical phenomenon detection data and associated measured values, filtering out redundant information while maintaining comprehensive fault detection coverage
Solution Approach 2:
The patent merges information from multiple remote devices at the central device level rather than transmitting separate complete data sets from each device. The central device consolidates phenomenon detections and measured values from multiple sources, eliminating redundancy while preserving comprehensive fault detection capability
3Loss of time
If continuous communication channels are maintained for all remote devices, then real-time data availability is improved, but communication network load increases excessively
Solution Approach 1:
The patent implements dynamic activation of communication channels based on event detection. Remote devices transition between inactive and active states, activating communication channels only when phenomena of interest are detected or requests are received, making the communication system adaptive rather than static
Solution Approach 2:
The patent pre-configures communication channels and protocols but keeps them inactive until needed. The system prepares the communication infrastructure in advance with predefined addressing and data models, activating channels only when phenomena of interest are detected or requests are received
Data Source
AI summary
Sampled measurement data stream is controlled in an electrical network by measuring at least one measurement value in a remote device; detecting in the remote device at least one phenomenon of interest or request for a connection from the central device; activating by the remote device a communication channel for sampled measured values between the remote device and a central device in response to the detection of the phenomenon of interest or the request for a connection from the central device; and sending the measurement value from the remote device to the central device through the communication channel for sampled measured values.