Air-condition is one of the most important equipment of textile mill, It needs higher requirement on air temperature and humidity to improve the production and to develop new varieties. The consume of electricity of air-condition occupies 15-25 percent of the hole textile mill. It’s the emphasis of energy saving. To lower the amount of dust in the air in workshop can not only improve he condition of laboring, but also reduce the flaw on the product. As you see, air-condition can do much work on labor heath protecting, quality of the production improving, consume and cost lowering, the intensity of labor reducing and the production efficiency of labor raising.
The system of spinning air-condition automatic control is a system of air in the which counters the adjustment of the temperature and the humidity of air in the workshop, The system adjusts the temperature and humidity of the room to meet the requirement of design mainly by changing the quantity of the wind blowing.
The air-condition system judges the changing of season by checking up the temperature outside. And it has the ability to alarm when the temperature is out of the control.
The sensors are ceramics humidity sensor and Pt register sensor. The circuit of motor control is PWM unreversible circuit. The air door is driven by the pace-motor.
The central control system of single single chip micro-controller adopts 89c51 CPU. The interface between person and the system adopts 8279 keyboard and showing circuit.
The design discusses the basic principle of the air temperature and humidity in textile mill adjustment, too and enclosed herewith the program of software.
Keywords:The temperature humidity controls, AT89C51 the monolithic integrated circuit, ADC0809 sensor, 8279 keyboards display circuit