The Monitoring System Development for Grain Situation
Chen De-mi · Grain Processing · 2014
In this paper, developed a set of grain monitoring system for grain situation, can monitor the temperature of the grain food, at the same time, this system had wireless rf module and reserved RS485 interface, can access other wired or wireless sensors, monitored environmental temperature and humidity within the grain depot, grain moisture content, gas(O2, CO2, PH3) and other physical quantities. This system included temperature measurement cables, wireless data concentrator and wireless temperature measuring rod. Temperature measuring cable and wireless temperature measuring rod embedded in DS18b20 sensors,all DS18b20 sensors connected to the wireless data concentrator through single bus. Wireless data concentrator was data forwarding device was also a data acquisition device. The equipment would be monitoring of grain situation of equipment acquisition data transmission through GPRS or Ethernet to remote monitoring host.