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A Remote Operating System of Grain Yield Monitor

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  131620122,  2013 Kansas City, Missouri, July 21 - July 24, 2013. (doi: http://dx.doi.org/10.13031/aim.20131620122) @2013
Authors:   Xincheng Li, Minzan Li, Lihua Zheng, Hong Sun, Wei Yang
Keywords:   Precision agriculture CAN bus grain yield monitoring system yield map GPRS

Abstract. It is very important for precision agriculture to measure grain yield data, obtain geographic location information and generate yield map. This paper developed an intelligent monitoring system to implement yield information acquisition and displaying based on automatic detection, CAN bus, global satellite positioning (GPS) and GPRS wireless transmission. The grain yield remote monitoring system included two parts: yield monitoring vehicle terminal and remote monitoring unit. The hardware of the yield monitoring vehicle terminal consisted of a microcontroller, a CAN bus communication modules, a DGPS signal module and several sensors connected to the CAN bus modules. The sensors used in system were dual-plate differential impact-based yield sensor, grain moisture sensor, speed sensor, harvesting width sensor, header height sensor, and elevator shaft speed sensor. The software was running on PC with platform of Window CE 7.0, which collected grain flow data, grain moisture, harvester travelling speed and harvesting width data to establish production model and accurately estimate grain yield. Base on GPRS technology, the system could realize remote communication. The data package of yield information could be sent to the data management center of the remote compute (server). After data processing, the remote monitoring unit saved them to a database. Using JSP technology, the server included dynamic interactive Web pages could realize database information query, draw yield map and estimate the yield of any chosen area.

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