基于单片机的空调控制系统毕业设计_精品.doc

MCU-based air-conditioning control system ABSTRACT As a result of global climate warming and national peoples living standards, air-conditioning will be in peoples lives gradually become an indispensable part. Micro-computer control system for air conditioners by the task instructions and in accordance with 89S52 room temperature, indoor heat exchanger temperature, outdoor temperature heat exchangers, compressors, etc. to control the status of the operation of air conditioners. Specifically, is to control the compressor, outdoor fan, indoor fan, indoor wind motor and the actual set temperature and room temperature liquid crystal display with LCD display. Main function is based on room temperature and temperature difference, and considering other conditions, and then on the indoor and outdoor compressors and fans running for intelligent control. The control system uses a single chip AT89S52 data collection, data processing to achieve the temperature control system of regulation and control. The main process is as follows: use of temperature sensor DS18B20 collecting temperature signal and then the signal is converted to non-power electrical signal, electrical signal and then converted into the A / D converter into a digital transmitted to the single-chip microcomputer for data processing, and output control signal peripherals. Loss single-chip, and then displayed by the single-chip control, and compare the acquisition of the temperature and the temperature settings are consistent, and then drive the heating or air conditioning to cool the air to deal with the cycle in order to achieve the regulation of indoor temperature in the entire design, related to the temperature detection circuit, driver control circuit, display circuit, the keyboard circuit and power circuit design. LCD charged by the real-time display of temperature and set temperature, in line with the use of C language and assembly language programming to enable software conversion air-conditioning tempera