Design of the Granary Temperature and Humidity Measure and Control System Based on ITU-BUS

摘要

In this paper, a new design scheme of the grain measure and control system is put forward. The system is composed by the measurement control unit and data processing center. It can implement the real-time collection, communication and processing of the granary temperature and humidity. Temperature measurement accuracy can reach to ± 0.5 00°C, as humidity measurement accuracy ± 3% RH. The digital transmission of single bus is directly used for temperature and humidity, which can greatly reduce the cable number of the system, and improve the stability and anti-jamming of the system.