Design And Implementation Of Data Measure And Management System For Farmland Soil Pit Moisture

Water content of soil in the farming is called soil moisture, which is the most important factor of crop growing and the foundation of studying water-saving irrigation. Soil moisture provides the basis for the establishment and implementation of the irrigation decision-making. Water content of soil will be negative pressure because of the capillary gravitation and the gravitation of soil, which will reflect soil moisture. The relationship between water potential and water content of soil will be reflected by soil moisture. The soil moisture is changing, so it is necessary to measure the data constantly in real time and build measure system and database to improve the operating factor of water and the yield of crop. Test pit of farmland is important to measure soil moisture for the development of modern agriculture and water-saving in farmland. The traditional way to measure the soil moisture is artificial, which is low efficiency. The way is not beneficial for measuring the data constantly in real time. The system to measure soil moisture of farmland is designed and developed in this paper, which can measure the data of soil negative pressure and water-level. And the data could be manage by the system remotely. It is very important to water-saving. The main work of the paper are as follows:1. By analyzing and summarizing the method of measuring and processing farmland soil moisture data, the overall architecture of the system was built in this paper, which could satisfy the function of measuring and managing the soil moisture data.2. The data measure system was set up based on the embedded ARM platform in the paper. The subsystem includes the negative pressure sensors, the water level sensors, the 4-20 ma data measure module and the 485-bus. The circuit was designed based on the S3C2440 microprocessor of Arm. The subsystem can measure and store data automatically and transmit data to the management subsystem.3.Based on the architecture of JBoss Seam, which was developed by Redhat. The remote data management subsystem was developed, which can accomplish the function of monitoring, storing, counting and downloading data. The final test results show that the system work is stable, and the data of farmland soil moisture can be measure and manage automatically.