Single-capacity water tank operation control system based on wireless communication and method thereof

Abstract

The invention provides a single-capacity water tank operation control system based on wireless communication and a method thereof. The system comprises a single-capacity water tank system, an operation feedback control computer and a DCS monitoring computer. The single-capacity water tank system comprises a pressure sensor, a liquid level sensor, a flow sensor, a temperature sensor, a water pump, a water reservoir and a processor. The output end of the processor and the input end of the operation feedback control computer are wirelessly connected. The output end of the processor and the DCS monitoring computer communicate through an ethernet. The output end of the operation feedback control compute is respectively connected with the water pump and a proportional valve. A liquid level set value is dynamically adjusted in each operation layer sampling period so that the actual value of a single-capacity water tank operation index is enabled to track a target value, stochastic stability of the system can be guaranteed, the actual value of the single-capacity water tank operation index is enabled to track the target value under the condition of packet loss and noise in the wireless transmission process, and a controller has certain suppression effect on external interference of the water tank.

Description

technical field [0001] The invention belongs to the field of industrial process control, and in particular relates to a single-capacity water tank operation control system and method based on wireless communication. Background technique [0002] In recent years, the control of liquid level and flow is often involved in many fields such as people's life and industrial production. There are more and more forms and methods of liquid level control, the technical performance is more advanced, and the degree of automation has also been greatly improved. However, as far as the liquid level control of various types of water tanks and pools is concerned, many projects have not reached the level of automation. Although some are designed with relatively precise instruments and other electrical equipment, they have not achieved sufficient development and reasonable configuration. , the automation program is low, there are many electrical and instrumentation devices, in the system only t...

AI Technical Summary

Problems solved by technology

However, there are packet loss and noise problems in wireless network transmission, which will lead to a decrease in system control performance and even instability

The closed-loop control of water tank operation with the coexistence of device network, Ethernet and wireless sensor network poses a challenge to the existing feedback control methods

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