Power System Hybrid Wired Wireless Communication Failure Recovery
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Solution Overview
Problem
Current power systems face challenges in detecting and recovering from device failures in wired communication networks, leading to slow failure determination and potential secondary accidents, while wireless communication introduces reliability and security issues.
Innovation Solution
A power system design that includes a power device group connected through a short-range communication network, with both wired and wireless communication capabilities, allowing for error detection and state recovery, and secure data transmission using session keys for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired communication is used to connect power facilities and monitoring/control devices, then communication reliability is improved, but failure detection capability deteriorates
Solution Approach 1:
The system dynamically switches between wired and wireless communication modes based on the operational state of the wired connection. When wired communication fails, the system automatically transitions to wireless mode, and when wired communication is successful, it switches back to wired mode. This dynamic adaptation resolves the contradiction by maintaining reliability through wired communication while enabling failure detection through automatic mode switching and status monitoring.
2Productivity
If wireless communication is used to maximize communication efficiency, then communication efficiency is improved, but security and reliability deteriorate
Solution Approach 1:
The system employs dynamic mode switching between wired and wireless communication based on real-time connection status. Wireless communication is activated only when wired communication fails, ensuring that the system maximizes efficiency through wired connection while using wireless as a fallback to maintain operational continuity. This resolves the contradiction by prioritizing reliability through wired communication while enabling efficiency through wireless when necessary.
3Productivity
If wireless communication is used to maximize communication efficiency, then communication efficiency is improved, but security deteriorates
Solution Approach 1:
The system dynamically selects communication modes based on security requirements and connection status. Wired communication is prioritized for its security advantages, while wireless communication is activated only when wired communication is unavailable. This dynamic approach ensures that the system maximizes efficiency while minimizing security vulnerabilities by relying on secure wired communication whenever possible.
4Reliability
If wired communication is used for monitoring/control devices, then communication reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The system implements automatic failure detection and recovery through self-service mechanisms. When wired communication fails, the system automatically switches to wireless mode without requiring manual intervention. The monitoring/control device autonomously manages communication mode transitions, resolving the contradiction by maintaining reliability through wired communication while improving ease of operation through automated failure recovery.
5Reliability
If wired communication is used for power facilities, then communication reliability is improved, but loss of time deteriorates
Solution Approach 1:
The system prepares for potential wired communication failures by having wireless communication capabilities pre-configured and ready. When wired communication fails, the switch to wireless mode occurs immediately without requiring setup or configuration time. This preliminary preparation resolves the contradiction by maintaining reliability through wired communication while minimizing loss of time through pre-configured fallback options.
Data Source
AI summary
A power system is provided. The power system includes a power device group including a power device, at least one communication device mutually connected through a short range communication network, and a monitoring/controlling device connected to the communication device in a wired manner and transmitting and receiving state information data and control data of the power device through the communication device. The communication device includes a first communication unit connecting the communication devices through the shore range communication network, and a second communication unit connected to the monitoring/controlling device in a wired manner.