Study on Application of Expert Systems in PID Thermostatic Control

2014 ◽  
Vol 716-717 ◽  
pp. 1703-1706
Author(s):  
Xue Kun Yang

Environmental parameter control is a common case in the technique of computer measurement and control, which has been widely applied to the practice of industrial and agricultural production. PID refers to one of the algorithms commonly used in temperature control, while the setting of PID parameters is the key to the algorithm. As one of the most successful branches in artificial intelligence technology application, expert system can simulate the thinking process of human experts by making use of the experience and expertise accumulated by experts for years, so as to resolve difficult problems that can only be settled by experts. An application scheme of expert system to PID thermostatic control is proposed by this paper for the purpose of making thermostatic control more convenient and intelligent.

2011 ◽  
Vol 101-102 ◽  
pp. 1138-1141
Author(s):  
Sheng Hao Zhou ◽  
Jun Kai Cao ◽  
Jin Chun Song

To meet the requirements of measurement and control system for common servo-cylinder and considering the characteristics of electro-hydraulic stepping cylinder, a computer measurement and control system is designed. In this paper, the working principle of hydraulic system, the structure of electrical system, the process of measurements and the functions of testing software based on LabVIEW are introduced.


2013 ◽  
Vol 765-767 ◽  
pp. 1849-1853
Author(s):  
Xiao Fan Li ◽  
Hui Yuan Li

A scheme for measurement and control system on grain situation is presented in this paper. This system is mainly composed of sensor network, measurement and control extension, communication host and host computer. Measurement and control extension centres on microcontroller C8051 to accomplish the measurement of grain temperature and humidity in granary. Instruction is transferred to measurement and control extension by communication host, at the same time, transferring the data measured by extension to host computer. Host computer achieves the regimentation of whole system by applying PC. Compared with traditional ones, this measurement system is much more simple, low-cost, efficient and responsive, with profoundly immediate significance and wide prospect.


2010 ◽  
pp. 175-182
Author(s):  
Nadiya Vasylkiv

In this paper the improved metrology software test is described by simulation the growth process of thermocouple thermoelectric heterogeneity acquired in operation conditions. It’s aimed to create the possibilities for the metrological studies of the temperature measuring channel in the computer measurement and control systems as well as a correction of the error caused by the thermocouple thermoelectric heterogeneity.


2014 ◽  
Vol 945-949 ◽  
pp. 2062-2066
Author(s):  
Guang Sheng Ren ◽  
Lei Gai ◽  
Xiao Qing Yin

The generation of the OPC technology makes each data source communicate flexibly in the industrial control environment. This paper takes the no-load test platform of the metro bogie as an example to design a lower and upper computer measurement and control system which is consist of IPC and PLC by the OPC technology. The OPC client is developed based on the platform of Visual Basic. By using the different communication mode, it is realized to access the OPC server data.


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