Research on real-time multi-task communication mechanism

At present, with the combination of grid, it is more complex, and the real-time data for each node is very important to the entire network, and the substation faces the task of data transfer share outside the reliability insurance. This paper researches a real-time multi-task communication mechanism, transplants μ C/OS-II embedded operating system, compiles the driver, and according to the requirements of each task on time, arranges the priority level of the tasks, to greatest ensure the real-time device communication. In addition, based on the in-depth analysis of MODBUS message features, this paper also describes the programming implementations of the communication protocol in detail.