The Design Of Touching Automobile Air-conditioning Control System Based On CAN Bus

With the rapid development of the information technology, a tremendous changehas happened in the lives of the human, this change is especially rapid in recent years.Touch technology as a new input device has more and more into the human’s dailylife; it can make human-computer interaction more straightforward. Therefore, theresearch based on the touching automotive air conditioning controller has produced.This topic has mainly completed the control of the auto air conditioning with thetouching control plane, as well as the simple detection of auto air conditioning, byusing the ATOM platform and the STM32module carries on the communication ofCAN bus to realize. When the four-wire screen of the resistive receives externalcommands, according to the A/D converter and the established CAN agreement, thedata is sent to the STM32module. At the same time, the detection interface capturesthe real-time operation of the motor position, and feed it back to the testing interfaceof the control panel though the CAN communication for users and maintenance todetect and maintenance. C#language is used to develop the system interface, which isprogrammed in the context of Visual Studio2008. After the requirement analysis,architecture design, detailed design, coding and system testing, the topic completed asimple touch-type auto air conditioning controller. The control panel is able tocontrol the wind mixing, pattern of automobile, in/outside loop, air, and thecompressor, as well as the real-time display of the temperature, and the status of thecommands which is send by user, so the users can understand the current status ofauto air conditioning, enhancing the security of automobile travel to a certain extent.The detection interface displays the real-time status of the motor, so the testingpersonal can examine the controller through the PC and USB to CAN.