Flexible switching device and method for automated experiment platform with time-delay configuration function

Abstract

The present invention proposes a flexible switching device and method for an automated experimental platform with a time-delay configuration function, including: a control system side I / O board, a controlled object side I / O board and a switching computer system; the present invention operates on different control systems A set of flexible switching devices is established with a controlled object. There is no need to change the hard-wired connection. Flexible switching between different control systems can be achieved just by switching the operation of the flexible switching software in the computer system, and the same control In the system, the same type of board can also be flexibly switched between different channels through software, and the time delay size of the controlled object can be arbitrarily configured to obtain a generalized controlled object with any time delay size, making the industrial process Controlled research experiments and teaching experiments can be completed smoothly without having to replace the control system and reconnect every time, which saves a lot of experimental time and is very necessary.

Description

technical field [0001] The invention belongs to the field of research, experiment and teaching of industrial automation and process control technology, and in particular relates to a flexible switching device and method of an automatic experiment platform with a time-delay configuration function. Background technique [0002] Industrial automation and process control are highly practical disciplines oriented to actual industrial processes. In order to meet the research, experiment and teaching needs of industrial automation and process control technology, it is necessary to establish a laboratory environment that is highly consistent with the on-site industrial environment. Industrial process automation experiment platform. The industrial process automation experiment platform is mainly composed of the controlled object and the control system. The controlled object includes: the controlled process, the testing instrument and the actuator. At present, in the industrial field...

AI Technical Summary

Problems solved by technology

If it is necessary to rewire between different control systems, actuators, and testing instruments every time an experiment is done, it will inevitably increase the time of the experiment, the risk of the equipment and the risk of the experiment, and greatly increase the maintenance cost. Obviously, it is not feasible of

[0004] On the other hand, the time-delay characteristic generally exists in the industrial production process. The typical production process includes but not limited to the pipeline transportation process, the belt transportation process and many thermal processes, etc. Many control schemes are proposed for the time-delay problem of the controlled object. Therefore, in this type of control algorithm experiments, such as Smith predictive control, minimum variance control, generalized minimum variance control, feedforward control, zero-pole configuration control, self-tuning control, etc., the controlled object of the experimental platform is required It should be able to simulate corresponding characteristics such as large time delay, variable time delay, and unknown time delay. Once the general physical process is determined, its time delay will also be determined, and it is difficult to change it according to experimental requirements.

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