PLC-based bridge machine equipment redundancy control system
By adopting a dual-CPU parallel working mode and redundant architecture in the PLC control system, the problems of long switching time, resource waste and poor autonomous controllability in the existing technology are solved, realizing high reliability and safety of bridge crane equipment, and suitable for special industrial application scenarios of bridge cranes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing PLC redundant control systems suffer from problems such as long switching times, resource waste, high costs, and poor autonomous controllability, and fail to effectively combine the characteristics of the bridge crane's operating environment to provide multi-level external safety protection.
It adopts a dual-CPU module parallel working mode, realizes real-time data interaction and synchronization through a high-speed internal bus, and combines redundant power supply, redundant communication and external security modules to form a triple safety guarantee of power supply redundancy + network redundancy + hardware protection, ensuring that the system can switch over without delay and operate continuously in the event of a failure.
It enables continuous operation of bridge crane equipment under conditions such as communication interruption, CPU failure, network anomaly, and power supply failure, thereby improving the reliability and security of the system, reducing hardware and software complexity, and enhancing independent controllability and external security.
Smart Images
Figure CN122411241A_ABST