Research And Development Of Farmland Soil Information Acquisition System Based On ARM

Acquisiting space distribution information and field soil information of farmland,with a quick,real-time and accurate way,is a key tecnology of precision agriculture. In view of the farmland soil information acquisition system'shotcomings in hardware and software,this paper combined the latest research achievements of embedded technology,GPS technology and ground sensor technology,studied and developed a high-performance,portable soil information acquisition system, which is suitable for Chinese national conditions.The main content and conclusions of this paper are as follows:(1) Analysised the parameter characteristic of soil moisture,soil nutrient,soil temperature etc,which influence farmland environment, and the methods of soil information acquisition, Studied the process of the soil information field testing by ground sensor technology.(2) Studied the system structure of the farmland soil information acquisition system,presented a open,modular development scheme of the soil information acquisition device,so that this system is easy to expand,can meet various application situation needs.(3) Studied and presented the hardware development scheme of the farmland soil information acquisition system,constructed hardware platform based on ARM9 microprocessor,completed the hardware circuit development and debug of ARM control board,soil information collecting board,GPS information acquisition module,information storage module and so on.(4) Analysised determined and the software development scheme of the farmland soil information acquisition system,established software platform based on Windows CE,implemented BSP migration and device driver development,completed eVC application software development.(5) The test results shows that farmland soil information acquisition system based on high performance mpu,integrated with multiple elements,can implement soil information fast acquisition and accurate positioning,this system is stable,reliable,high human-computer interactive ability,low investment cost,easy to carry,it meet requirements of precision agriculture,beneficial to accelerating industrialization of filed information acquisition system.