Design of distributional bus in control system

In order to solve the problem of the single point failure and the performance bottleneck caused by the single bus architecture in control system, we had designed a control system based on the distributional bus to break through the performance bottleneck of single bus architecture. This paper proposed the strategy concerned with the control data and control logic separation, and developed an interface based on binary communication protocol. These measures can elevate the real-time of the system. The algorithm of Multiple Mapping Weighted Consistent Hashing (MMWCH) was utilized to achieve the load balancing of the system, as well as deal with the performance difference between physical nodes and Query Hotspot. Through the robot control experiments, it is proved that the real-time of the distributed bus system is better than the single bus system, with good scalability and fault tolerance when the bus nodes change. Therefore, the feasibility of the strategy to design the distributional bus in control system is validated.