UPS Controller Identification for Network Resilience
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Solution Overview
Problem
Existing network communication systems for uninterruptible power supply (UPS) systems face challenges in maintaining continuous communication and control over load devices during power interruptions or changes in network settings, as they require fixed IP addresses and unchanged network configurations.
Innovation Solution
A network communication system that includes UPS member controllers and a UPS group controller, where specific identification information is added to control data transmitted over a predetermined communication protocol, allowing the system to maintain communication and control even if network settings, such as IP addresses, change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed IP addresses are assigned to controllers to maintain communication stability, then communication reliability is improved, but network configuration flexibility deteriorates
Solution Approach 1:
The identification system is segmented into two layers: network layer IP addresses (which may change) and application layer identification information (which remains stable). This segmentation allows the network layer to maintain flexibility while the application layer ensures reliable identification and communication, resolving the contradiction between communication reliability and network configuration flexibility.
2Adaptability or versatility
If IP addresses are changed during power interruption, then network adaptability is improved, but communication continuity deteriorates
Solution Approach 1:
The system performs preliminary actions by establishing identification information mapping before power interruption occurs. The correspondence between identification information and IP addresses is pre-established and stored, enabling the system to quickly adapt to IP address changes after power restoration without disrupting communication continuity.
3Device complexity
If controllers are identified by IP addresses, then network communication is simplified, but communication stability during power changes deteriorates
Solution Approach 1:
Identification information serves as an intermediary layer between controllers and IP addresses. Instead of controllers directly using IP addresses for identification, the system introduces identification information as a stable mediator that maps to IP addresses, simplifying communication while ensuring stability during power changes.
Data Source
AI summary
Even if a network setting changes due to power interruption or the like, communication for controlling the operating status of load devices of an uninterruptible power supply is enabled to continue. A network communication system (1) for the uninterruptible power supply comprises UPS member controllers (12 and 13) and a UPS group controller (11) which are connected in a network (2) to control the operating status of the load devices (3) of the uninterruptible power supply (1). The UPS group controller (11) and the UPS member controllers (12 and 13) execute data communication according to a predetermined communication protocol (Internet Protocol or the like) through the network (2), and these controllers transmit/receive data in which specific identification information issued for each of the UPS member controllers (12 and 13) is added to control data as communication data in the data communication according to the predetermined communication protocol.