Abstract
Progress of with the development of society , science and technology and gradual improvement of people's living standard, various kinds of help automatic control system in life has entered people's life, the system of automatically-controlled door taking one-chip computer as the core is one of them. Indicate too that the automatic controlled field became a member in digitized era at the same time.The system of automatically-controlled door with the utility strong, functional, technologically advanced features, and its wide application represent practical results of scientific and technological progress . It lets the mankind understand even more, the development in digital era will change human life, will quicken the development of science and technology.
The main elements of the design include : first programme design, and then design a system of hardware circuits and the corresponding software, and finally developed the theory model of the system of automatically-controlled door automatic door control system and design functional certification. The system used infrared sensors to access sensitive region for real-time monitoring of mobile objects, when mobile objects into sensory regions, infrared sensors to receive signals through module conversion into digital signals it sent to one-chip computer, one-chip computer export orders of the electrical control equipment, electrical-transmission agencies and then opened the doors, When people are no longer sensitive to the sensory region closed.
This paper rely mainly on one-chip computer to explain emphatically, LED lattice show chip and direct current machine central systems. It use AT89C51 as core of controlling , LED lattice show chip , direct current machine , Infrared sensors , that device combine together mainly to design originally. Give full play to the performance of the one-chip computer. Its advantage hardware circuit is simple, the software is with perfect function, the control system is reliable , higher characteristic of the sex price, have certain use and reference value.
On principles prototype debugging showed that the design of the completed design of the basic functions of the mandate, in the completion of the design task basis I also added an electronic password lock, it make that the system of automatically-controlled door can enable controlled in the given time-frame restrictions
Key words: One-chip computer The automatically-controlled door controlling A/D modulus changing Infrared sensors
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