A first failure determination method and device, a storage medium and a terminal device

By using a fault data storage sub-region and a flag register structure in the PLC processor, rapid identification and handling of the first fault in a hydrogen fuel cell power generation system is achieved, solving the problem of low fault handling efficiency in existing technologies and improving maintenance efficiency.

CN116449765BActive Publication Date: 2025-12-16GUANGDONG GUOHONG HYDROGEN ENERGY TECH CO LTD
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Patent Information

Application Number
CN202310276748.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-16
Publication Date
2025-12-16
Estimated Expiration
2043-03-16

AI Technical Summary

Technical Problem

Existing technologies cannot effectively distinguish the first fault in a hydrogen fuel cell power generation system, forcing after-sales maintenance personnel to rely on experience to analyze each fault individually, resulting in low fault handling efficiency.

Method used

By adopting the fault data storage sub-area and fault flag register structure in the PLC processor, a unique control signal is generated by acquiring fault signals, storing and refreshing relevant information, and comparing it with the preset first fault control signal to determine whether the fault is the first fault.

Benefits of technology

It improves the fault handling efficiency of after-sales maintenance personnel, enabling them to quickly identify and handle initial faults, reduce indiscriminate fault analysis, and improve system maintenance efficiency.

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Abstract

The application discloses a first failure determination method, which is suitable for a PLC processor, wherein the PLC processor comprises n fault data storage sub-areas, n fault flag registers and an output state register; the first failure determination method comprises the following steps: acquiring a fault signal and storing fault information corresponding to the fault signal into a target fault data storage sub-area; when a change of the target fault data storage sub-area is monitored, refreshing (n-1) fault flag registers associated with the target fault data storage sub-area, so that the state value of the corresponding fault flag bit is changed; generating a control signal by the output state register according to the state value of each fault flag bit received; comparing the control signal with a preset first failure control signal to determine the first failure. The application is advantageous in improving the fault processing efficiency of after-sales maintenance personnel by determining the first failure.
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