| Design and evaluation of controller to achieve optimum seeding rate with specific spatial management in agricultural machinery |
| Paper ID : 1382-SMPR |
| Authors: |
|
Arman Saberi *1, Elahe Khesali2 1Control Engineering, The Islamic Azad University, Science and Research Branch 2Remote Sensing, K.N.Toosi university of technology |
| Abstract: |
| Achieving optimal seeding rates in different areas of the farm is very important. In order to achieve this, spatial management has been used. The production inputs, should be optimized with the intrinsic factors of the various areas of the farm, like fertilizing and humidity. Due to changes in these two factors, optimum seeding rates can be different, areas with higher fertility or higher humidity have higher seed rates. One way to achieve the ability of variable seeding rates in agricultural machines is to add controllers to them. In the spatial management technology of planting in a variable rate, the rate map for each area of the field is prepared and loaded in the GIS. The purpose of this study was to select the best closed-loop variable rate control system for linear shifting from fixed rate to variable rate. By examining the advantages and disadvantages of controlling systems that could be used on the linear operating system, controlling and varying the speed of the rotational axis the mosaic was selected using a DC motor. This control system includes: a 250 watt DC motor with a gearbox with a constant gear ratio, two encoders (one for sensing the linear working speed and the other for sensing the rotational speed of the motor), position receiver and navigation, DC motor controller and a portable computer for collecting data. The response time of transferring the seed rate by the controller was determined from low to high 4/7 seconds and from high to low 2.5 seconds. |
| Keywords: |
| Geographic Information, Positioning, Navigation, DC Engine, Linear work, controller |
| Status : Conditional Accept (Oral Presentation) |
