A Design of Nuclear Power Monitoring Communication Control Module Based on Redundancy Technology

By using large number of analog devices formonitoring in nuclear radiation area ,the scale of central control system is too large and the circuit has safety hazards. To solve the shortcomings, a nuclear power monitoring communication control module based on redundancy technology was developed. The module performs the communication between the central control system and field monitoring units through a preset protocol. The data and instructions can be transmitted by only one data bus. And improves the complicated connection between the central control system and the underlying device. The stability and continuity of data transmission is ensured by the redundancy techniques and polling mode for the underlying devices on the bus. The simulation of the failure situation of the board during actual operation is carried out and the results verify the effectiveness of the communication control module based on redundancy technology developed in this paper.