| The Detecting & Controlling System described in the article is a universal microcomputer Detecting & Controlling system for the industrial manufacturing demand based on the Speed Detecting Panel Of HeFei science Hall which is developed by the author. It uses microcomputer AT89C51 as microprocessor, detecting related signals such as speed, temperature, angle, work state by sensors and digital interface, and transfers them to the dada process system by the fore-tunnel, monitor the result of them, then display the status by means of voice and display , also the communication between the system and PC is realized by the Serial Bus. As soon as the result excelled the alarm value, the system will alarm and acts automatically, thus the automation of manufacturing is realized. The article makes a deep analysis and research in the work theory of the detecting module and the realization scheme, presents the design and development of the hardware circuit and application software of the system, the design of the system reliability and stability is also involved.
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