Research And Application Of Temperature Control System Based On Arm

In industrial production, control and measurement of the temperature has avery wide range of applications, especially in the chemical, petroleum, metallurgy,electric power and other industrial sectors. Product quality and industrialproduction process is carried out smoothly, the temperature control of its greatimpact. With the rapid development of microelectronics and embedded in astep-by-step improvement of automatic control theory, the temperature controlsystem is also towards a more intelligent direction.In this paper, the status quo of the temperature control at home and abroadon the basis of embedded temperature control combined with an embeddedtemperature control system is designed and the system components and softwareand hardware design are described. This system has the collection and responsespeed, low power consumption, this paper uses fuzzy PID temperature controlsystem based on ARM. The hardware used in this paper is ARM920T RISCprocessor as the main control chip peripheral circuits, including the temperaturesensing unit and a temperature control unit design and application of the RS232serial port circuits and the Ethernet interface circuit, to facilitate data downloads,system debugging and communication with the PC; transplantation and the designof the driver linux real-time operating system software, application andtemperature detection module, PWM timer module, fuzzy PID control algorithmdevelopment design. In this paper, the design of the temperature control systemhas a simple structure, high reliability, fast response, strong anti-jammingcapability, small size.In this paper, the laboratory temperature of the boiler for the controlledobject, the analysis of the conventional PID control and fuzzy PID control. Theoperation results show that the fuzzy PID control strategy is effective, the fuzzyPID control not only has the advantages of PID control, adaptive function, has abetter dynamic performance and steady-state performance.