Pressure control of a mobile spraying system

  • J.L. Guzman Universidad de Almería. Almería
  • R. Medina Universidad de Almería. Almería
  • F. Rodríguez Universidad de Almería. Almería
  • J. Sánchez-Hermosilla Universidad de Almería. Almería
  • M. Berenguel Universidad de Almería. Almería
DOI: https://doi.org/10.5424/sjar/2004022-72
Keywords: GREENHOUSES, FUMIGATION EQUIPMENT, MOBILE UNITS, SPRAYING, AUTOMATION, ROBOTS, PROTOTYPES, EQUIPMENT CHARACTERISTICS

Abstract

This paper presents an automatic control system aimed at regulating the output pressure of a spraying system mounted on a mobile platform for fumigation tasks in spite of changes in the vehicle velocity; that is, the pressure set points are calculated based on the actual velocity of the vehicle at each sampling time and are then used in a feedback loop for pressure control purposes. The paper focuses on the dynamic modelling of the spraying system based on the reaction curve method (analysis of the response to open loop steps) and the development and test of several control strategies to achieve the desired pressure profile. One of these approaches, the gain scheduling controller, has demonstrated its ability to cope with the changing dynamics of the system by modifying (adapting) the controller parameters in different operating conditions.

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Published
2004-06-01
How to Cite
Guzman, J., Medina, R., Rodríguez, F., Sánchez-Hermosilla, J., & Berenguel, M. (2004). Pressure control of a mobile spraying system. Spanish Journal of Agricultural Research, 2(2), 181-190. https://doi.org/10.5424/sjar/2004022-72
Issue
Vol. 2 No. 2 (2004)
Section
Invisible

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