荒漠植物蒸渗观测场计算机监控系统研发与应用

IIn this paper, we designed and developed a non-weighting computer monitoring system of desert plants lysimeter observation and testing. It is used to study psammophytes transpiration water consumption, variation law and its relationship with environmental factors under the natural conditions in the arid, desert region, that can provide the most direct and most real experimental data for plant species adaptability to drought condition. The system can automatically monitor lysimeter soil water content, automatically control bottom water supplement, displacement measurement and it has realized real-time water collection, processing, communications, database entry, historical data storage, data report printing, fault alarm, on-site equipment operation display. Users can remotely monitor equipment working state and process abnormal alarm through Internet, achieving the unattended station. It is constituted by superior computer, independent development embedded controller, EDA communication module, EC-5 soil moisture sensor, temperature sensor, pressure sensor and solenoid valve,etc.