DAMPING DESIGN AND SIGNAL PROCESSING OF THE YIELD SENSOR ON GRAIN COMBINE

摘要

Now, Precision Agriculture is increasingly becoming the developing trend of domestic agriculture or even in the world. In the technical system of Precision Agriculture, Precision Harvest is an important part and a link between the preceding and the following.In the process of Precision Agriculture, impactbased grain yield sensor, the most important part of Precision Agriculture, is an important equipment.However, because of various reasons, the data measured suffer large error. In our research, we focus on the processing of the data collected via impact-based grain yield sensor. We filter the interference signal by both hardware circuit and software arithematic and that takes good effect. We do an experiment of wheat harvest with the grain combine harvester intelligent yield monitor system in Luancheng ecosystem experiment station of Chinese Academy of Sciences in June, 2007. The precision and stability of the data obtained meet the requirement of Precision Agriculture.