Design Of Computer Room Air Conditioner Control System Based On μC/OS-II

With the rapid progress of communication market and the change of telecom transfer mothod, computer room air conditioner has a better prospect in base-station and small type plug-in-network, but in China, air conditioner manufacturer generally take peasant rooms as base-station. It seemed that this action is not standard. This kind of air conditioner is far away from city and is not overseed for a long time by maintainer. So, it is in a bad atmopsphere. In such atmosphere, computer room air conditoiner is required to run all day and all night, which is the earnest difference from common air conditioner. In short, this thesis is always focusing on ensuring computer room air conditoner's reliability.This thesis firstly compares the difference between computer room air conditoner and common air conditoner in their function and their application field, and then demonstrates special design function of computer room air conditioner and corresponding complishment method, and then introduces the whole computer room air conditoner framework of refrigeration equipment and electric controll equipment.Secondly, through analysising the application field and advantages of CAN bus communication which develops very fast in recent years, this thesis uses CAN bus to finish communication task, complishing board-board data transfer base on self-defined application layer agreligrom in the conditon of considering the actual requirement of the current system.Thirdly, this thesis makes a comparison in function of MCU system which is base on RTOS or not. And then, proves the possibility usingμC/OS-II, and complishes transplating this kernel on AT89C52, reforming multi-task application program, finishing the distribution of different task priority level, ensuring multi-task application base onμC/OS-II.Finally, this thesis designs a testing system in order to checking the water-proof function in oudoor fan, finishing components type choosing and system debugging.Compared with the traditional computer room air conditoner, this system is...