Advertisement

Design of Can-based Variable Rate Fertilizer Control System

  • Wenqian Huang
  • Liping Chen
  • Zhijun Meng
  • Chunjiang Zhao
Part of the The International Federation for Information Processing book series (IFIPAICT, volume 259)

A novel control system for variable rate fertilizer application based on CAN bus is presented. The system consists of variable rate controller based on DSP, ground speed sampling unit and light-bar guidance unit. These units form a control area network based on CAN bus. The variable rate controller collects signals of GPS position and ground speed, and calculates the conveyor feed shaft rotate speed according to the prescription map stored in local memory. Then the variable rate application can be realized through PID control of the shaft rotate speed. Light-bar guidance unit helps the operator to steer the machine moving by equal spacing parallel passes for less overlap and missing in operation. The effectiveness of the developed system is confirmed by the experiments using the communication protocol special for the application based on CAN bus.

Keywords

Precision Agriculture variable rate fertilizer CAN bus PID control DSP 

References

  1. Maohua Wang. 1995. The Development of Precision Agriculture and Innovation of Engineering Technology. Transactions of the CSAE 15(1):1-8.Google Scholar
  2. Marvin L. Stone and Kevin D. McKee. 1999. ISO 11783: An Electronic Communications Protocol for Agricultural Equipment, Agricultural Equipment Technology Conference, Louisville, Kentucky.Google Scholar

Copyright information

© IFIP International Federation for Information Processing 2008

Authors and Affiliations

  • Wenqian Huang
    • 1
  • Liping Chen
    • 1
  • Zhijun Meng
    • 1
  • Chunjiang Zhao
    • 1
  1. 1.National Engineering Research Center for Information Technology in AgricultureChina

Personalised recommendations