Click on “Download PDF” for the PDF version or on the title for the HTML version.
If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.
A Site-Specific Irrigation Control System
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 031129, 2003 ASAE Annual Meeting . (doi: 10.13031/2013.13740) @2003
Authors: Fabio Rodrigues de Miranda
Keywords: automated irrigation control, microirrigation, spatially-variable irrigation, distributed control
The development and testing of a low-cost, low-power, closed-loop, distributed
irrigation control system for site-specific irrigation is presented. The system used soil water
potential measurements to control the amount of water applied to each specific zone of a field.
Hydraulic pressure measurements and priority scheduling were used to allocate water
resources among irrigation controllers. The controller hardware consisted of a microcontroller,
time keeping and data storage devices, and an A/D converter. The controller was autonomously
powered by a solar panel and a battery, minimizing maintenance and eliminating inter-wire