Research on Automatic Monitoring System for Temperature and Humidity of Granary Based on DSP

A 1-wire bus mounted temperature and humidity sensor is been designed to form the sensor monitoring network. By the adoption of DSP as the site monitoring controller, CAN bus for communication with upper machine, as well as with LCD Technology, acousto-optic alarm device, ventilation and temperature controlled circuit, combined with data acquisition and processing by C language programming, the software and hardware design in the automatic monitoring system for temperature and humidity which based on DSP was accomplished. This system possesses practical applications.