Design of State Monitoring System of Compressor in Low Temperature Logistics Based on CAN Bus

摘要

The major characteristic of low temperature logistics is that the quality of perishable goods should be ensured. The paper emphasizes that the running state of air-conditioned compressor is the security of the low temperature logistics system. In this paper, a state monitoring system of compressor based on CAN bus and DSP 2812 is presented. The CAN bus integrates specialty of flexible and simple structure of high reliability, good adaptability. In this system, the 2812 DSP which has the modules of ADC and CAN controller is used for acquiring data from target system and communicating with the host computer. In addition, it can achieve the analysis, save of data and the running state show of compressor. Finally, it is observed that CAN controller has stronger flexibility and practical use.