Based On Embedded Platform Long-distance Air Conditioning Control System

The long-distance monitoring refers to carry on the operation in the local aera, carry on the monitor and the control to the far-end equipment through certain network system.Traditional long-distance monitoring system uses RS-232 or RS-485 network, short distance; long-distance monitoring system based on phones (including mobiles and fixed phones) is beyond the limit of operating Distance. But it is not easy to achieve centralized management and control to a large number of objects. With the development of computer network technology, Web-based B / S model of long-distance monitoring technology and extensive application of increasingly sophisticated. Long-distance monitoring system based on the Web allows users to use standard browser implementation monitoring and control equipment by embeding the server equipment in the scene.In building a Web-based long-distance monitoring system, the traditional single-chip microcomputer system can not meet the requirements of processing speed. At the same time, embedded operating system ,for its compact structure, strong real-time, high stability has drawn greater attention. So embedded operating system will be used in embedded long-distance remote monitoring system ,it has become an inevitable trend.The client, embedded Web server, air-conditioning modules compose the Long-distance monitoring of the entire air-conditioning system. Client users can use Windows built-in IE browser remote access embedded Web server data via Ethernet.It Can be achieved on the site to read temperature and humidity parameters, as well as setting air-conditioned open, and turn off heat. It can use in the places that have air-conditioning,such as computer room, greenhouse, hotel,but also apply to manage a large number of air-conditioning on focus.In this design, with MSP430F149 as the core of control module to the of mid-infrared.It can communicate with the top embedded Web server with 485. It can be completed that collect temperature and humidity parameters at the scene, study various types of air-conditioning remote control signals and send IR commands. The infrared receiver modules will enable this system to study air-conditioning orders of different brands, to achieve to controlmulti-brands remote air-conditioning. The embedded Web server can be realizedapplication based on the AT91RM9200 processor board .It can be used to receive temperature and humidity data and send control commands for air conditioning through the issue of temperature and humidity parameters corresponding. This paper describes the system hardware and software processes in detail, defines the embedded Web server and the application layer protocol of infrared communication module , and finishes system testing, functional testing.