Distributed control system

Abstract

The invention discloses a distributed control system (DCS) comprising a display module for displaying a DCS operation interface and providing an APC (advanced process control) control interface and an APC measuring interface through the DCS operation interface; a DCS control module for receiving a DCS operation instruction of a user through the DCS operation interface, and carrying out a DCS operation corresponding to the DCS operation instruction; an APC control module for displaying information of APC operation variable through the APC control interface, receiving an operation variable control instruction through the APC control interface, and carrying out the operation corresponding to the operation variable control instruction when the user selects the APC control interface; and an APC measuring module for displaying information of the APC controlled variable through the APC measuring interface, receiving a controlled variable control instruction through the APC measuring interface, and carrying out the operation corresponding to the controlled variable control instruction when the user selects the APC measuring interface. By using the embodiment of the invention, the steps of the APC control operation is simplified, and the efficiency of the APC control operation is improved.

Description

technical field [0001] The invention relates to the technical field of process control, in particular to a distributed control system. Background technique [0002] In the modern industrial production process, the process flow is usually relatively complex, and there is a coupling relationship between each process unit and the control loop. Due to the characteristics of flexible configuration, reliable operation and convenient configuration, the distributed control system (DCS) has been widely used in industrial production. In DCS applications, conventional control methods, such as PID control, can solve the automatic control problems of most control objectives, but the key control loops closely related to production capacity, energy consumption, and product quality cannot be realized by conventional control technologies. Automatic control or optimal control still needs to be manually controlled by the operator based on experience. In order to improve the control quality o...

AI Technical Summary

Problems solved by technology

However, since the operation interfaces of the DCS application and the APC application are independent of each other, after the user switches from the interface of the DCS application to the interface of the APC application, the user cannot view the original flow chart interface, and cannot understand the operation of the control system, especially when the APC application When there are many operating variables, the user cannot intuitively understand the operating variables of each APC application, and can only adjust multiple operating variables in one interface, or frequently switch the operating interface, which is prone to misoperation and affects the Convenience and accuracy of APC operation

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