- Volume 15 Issue 5
DOI QR Code
Research on the Variable Rate Spraying System Based on Canopy Volume Measurement
- Hu, Kaiqun (College of Mechanical Engineering, Chongqing Technology and Business University) ;
- Feng, Xin (College of Mechanical Engineering, Chongqing Technology and Business University)
- Received : 2018.01.17
- Accepted : 2018.12.25
- Published : 2019.10.31
Characteristics of fruit tree canopies are important target information for adjusting the pesticide application rate in variable rate spraying in orchards. Therefore, the target detection of the canopy characteristics is very important. In this study, a canopy volume measurement method for peach trees was presented and a variable rate spraying system based on canopy volume measurement was developed using the ultrasonic sensing, one of the most effective target detection method. Ten ultrasonic sensors and two flow control units were mounted on the orchard air-assisted sprayer. The ultrasonic sensors were used to detect the canopy diameters and the flow controls were used to modify the flow rate of the nozzles in real time. Two treatments were established: a constant application rate of
Canopy Volume Measurement;Tracer Deposition Device;Ultrasonic Sensor;Variable Rate Spraying System
Supported by : Chongqing Education Commission of China, Chongqing Technology and Business University, Chongqing Nature Science Foundation
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