IsoAgLibSE Study and Implementation of the Manure Spreader Machine Control System

摘要

The objectives of this research work were to improve the performances of the agriculture manure spreader electrical control system. A modern agricultural vehicle's electronic control units (ECU) communicated based on the ISO 11783 standards. The connection of different machines, implements, different manufacturers into a single bus for the exchange of control commands and sensor data are a challenge for precision agriculture. The principal aim of this paper is to show the chosen way to implement distribution control of this machinery. A prototype was developed and evaluated in Greenmax Manure Spreader at Jeonju in the Republic of Korea. The method consists in controlling the speed of the beaters, conveyor regarding the height of the gate during the manure spreading to the field and measuring the weight-meter by using differential load cells. The gate height control is able to follow the power-take-off (PTO) speed and inductive sensors attached on the gate. It is technically based on an electronic and automatic system, which is the sequence control algorithm of the hydraulic valves for the gate height control, the conveyor speed in regard with the beaters and the spreader velocity into the field. The main electrical control unit (client-side ECU) applications were developed through the IsoAglib-SE (safety edition) library known as ISOBUS-stack. An ARM Cortex M4 microcontroller based hydraulic control system client ECU for manure spreader consisting of a load sensor for weight, belt speed sensor, and the hydraulic belt motor controller was also designed. The hardware porting of the IsoAgLib Safety edition to an embedded board as well as the analysis of network protocol traffic for twenty ECU's connected to an ISO 11783 intelligent monitoring display is also presented. Using this technique, the improving productivities and its allow the communicated with precision farming machinery.