Communication system and method for parallel operation of multi-controller system

Abstract

The invention belongs to the technical field of communication, and discloses a communication system and method for a parallel operation of a multi-controller system, and the system comprises a man-machine interaction interface, a centralized control and communication coordination main controller, one or more than one sub-controller, and a channel selector. According to a high-low-speed communication system with high-speed SPI communication and low-speed UART communication matched, a main controller transmits system state information to all sub-controllers in a broadcast communication mode through a high-speed SPI port. The man-machine interaction interface and the main controller form chain type communication through a low-speed UART port by means of sub-controller machines, the chain typecommunication is applied to monitoring a multi-controller system, state information of all controllers is collected and gathered, and the state information of the controllers mainly comprises start-stop signals, fault states and output data; according to the invention, the real-time performance of system communication is satisfied, and the synchronization of parallel operation systems is realized; data sharing between man-machine interaction and the controller is satisfied; and the anti-interference capability of the communication system is improved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a communication system and a method for operating multi-controller systems in parallel. Background technique [0002] At present, the parallel operation system is widely used in petroleum, electric power and other industries. Using a controller alone often cannot meet the control requirements of the system due to insufficient technology or computing power. At this time, multiple controllers are required to run in parallel. In such a system, it generally includes a human-computer interaction interface, a main controller and multiple sub-controllers. The human-computer interaction interface provides human-computer interaction, and is responsible for downloading various control commands and data, and monitoring the operating status of the main controller and sub-controller at the same time. The main controller is responsible for the control of the entire system, ...

AI Technical Summary

Problems solved by technology

In this kind of parallel operation system not based on communication, each control device is completely independent, so unified control cannot be achieved, and the control devices cannot achieve synchronous operation; especially when a control device fails, other control devices can only follow the The preset scheme runs and cannot be adjusted dynamically

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