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Coagulant dosing process is an important part in water treatment plan, it directly affects the water quality and operating costs of production. It is very difficult to set up its mathematical model accurately basing on its reactive mechanism at present. Factors that affect the coagulation effect are analyzed in this paper, then a BP neural network prediction model of coagulant dosage is established...
Nonlinear system analysis is a particular chapter in "Automatic Control Theory". The Analysis methods are very complicated and difficult to be understood. According to the teaching needs of this part, a teaching software platform for nonlinear systems analysis is designed with MATLAB simulation tool. The nonlinear element and linear components against the typical structure can be easily...
According to the lifting difficulty problem in extracting the heavy oil and high-coagulate crude oil, a heating technology based on the frequency converter is proposed which can directly heat crude oil in the oil tube by taking the oil tube and bushing as heat supply. In this system, industrial-frequency three-phase alternating current can be converted to 100~1200 Hz single phase alternating current...
A system structure and the procedure of fuzzy control of central air conditioner (CAC) in building are presented in this paper. Discuss the design of improved fuzzy controller about room temperature controller in detail, including the hardware design and software programming based on MCU (Micro programmed Control Unit). The functions of temperature controller are completed under the application that...
Crystallization process control system is a complex system with time variable parameters. Temperature rising rate requirement in each running stage is deferent. In this paper it is introduced a nonlinear scaling factors fuzzy control scheme, which can tune and optimize the parameters of scaling factors based on genetic algorithm(GA). From the simulation result, it shows that control system has the...
The output of ultrasonic object-location meter changes with the environmental temperature. In order to eliminate such a situation, a new information fusion algorithm based on neural network is presented. A virtual ultrasonic object-location measurement temperature compensation system is realized based on a method of the hybrid programming of MATLAB and LabVIEW with MATLAB Script node. A improved BP...
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