Title Temperature control system of refrigeration machine
Abstract
Refrigeration plane our country every profession and trade technological transformation carry on corollary equipment that equipment's introducing need badly at present, Improve product quality , the important equipment which enterprises upgraded too. And the traditional one observes and controls the method and adopt the simulation way from measurement to showing, the data are gathered slowly, does not possess real-time character , anti-interference ability is bad. Measure the precision and totally rely on with the characteristic of the hardware. Since the one-chip computer comes out , arise at the historic moment too instead of relevant observing and controlling the instrument, especially the figure tests the combination of the one-chip computer of technology. The technology of the one-chip computer is with its high efficiency even more, high accuracy, the multi-functional advantage replaces the traditional method of observing and controlling gradually.
This text utilize one-chip computer control refrigeration plane to purpose to achieve temperature control. Utilize temperature sensor AD590 to realize temperature is gathered in this design. Realized simulation- the figure is changed by converter ADC0809 of A/D. Give it comes to be whole without being realized demand that design to one-chip computer,can time, temperature now not real, such functions as the trouble code shows.
This system has high accuracy, high sensitivity, such characteristics as high dependability ,etc.. Can gather the data at a high speed , have real-time character, and have very strong anti-interference ability and automatic circulation and diagnose ability automatically.
Keyword: Refrigeration machine, AT89C51, AD590,Temperature control