Parallel control system and method

TL;DR: In this article, a parallel control system consisting of a to-be-upgraded control system, a newly-built control system and a monitored object is presented, where the control functions of the to- be-up upgraded control system are the same; and the control authority of the new control system over the monitored object comes from the selection of a control authority switching instruction.

Abstract: The invention provides a parallel control system and a parallel control method. The parallel control system comprises a to-be-upgraded control system, a newly-built control system and a monitored object, wherein control functions of the to-be-upgraded control system and the newly-built control system are the same; and control authority of the to-be-upgraded control system and the newly-built control system over the monitored object comes from the selection of a control authority switching instruction. When the control authority switching instruction is selected for the newly-built control system, the monitored object is controlled by means of the newly-built control system, and the to-be-upgraded control system is in a to-be-controlled mode; and vice versa. Therefore, parallel control overthe to-be-upgraded control system and the newly-built control system is achieved, and the to-be-upgraded control system gradually exits from a control sequence when conditions are met after the newly-built control system is selected according to the control authority switching instruction. According to the parallel control system and the parallel control method, the purpose of not influencing normal operation of the monitored object during upgrading and reconstruction of the to-be-upgraded control system can be achieved.