Environmental Monitoring And Intelligent Irrigation System Research Based On Wireless Network

The water shortage has been the important factor to restrict agricultural development. In recent years, agricultural development projects have become the main way to develop the agriculture and the rural economy.We put more emphasis on water resource developing. In order to solve the water shortage problem, we should develop the water resources reasonablily. At the same time, we should use water efficientily and get the maximum saving and protection by optimal allocation of water resources. We observe the principle of overall planning, consideration and comprehensive treatment thoroughly. Water saving irrigation is of great significance for the protection of China’s economic, ecologic and social sustainable development. It is the strategy to realize the precision agriculture construction. In our country, the precision irrigation technology has a late start. The traditional irrigation mode is the timing of irrigation. We often irrgate crops no matter the soil need water or not. Although the rough waters phenomenon is basically under control, low rates of resource utilisation and water waste are rampant. The actual input control irrigation applications are relatively rare. Agricultural water-saving technology needs further improvement. Therefore vigorously develop water-saving irrigation is a priority and a long term strategic task in the agricultural development.Plant growth is associated with soil moisture, light intensity, temperature, CO2 concentration. Among them the soil moisture is the most important factor. It is convenient to detect. Using the traditional control mode, the system often has a big overshoot. This approach is hostile to water conservation. When the overshoot is higher than a certain value, it will also affect the growth of crops. Combining with the requirements of modern precision agriculture and water-saving society construction, we design remote irrigation system based on GPRS and LabVIEW. We use K60 as the lower moniter. STC12C5A60S2 is used as the main control chip to monitor data collection instruction from the base station, and then the master control chip through the sensors to collect datas. After the datas collection, the main controller will arrange datas into a string according to certain form, and then through the ZigBee module to transfer the datas to the base station. Base station receives the temperature and humidity and other environmental parameters and then transmiss to datas the PC through GPRS data transmission medium and the internet network. The project aims to combined with the application of sensor technology, computer technology, virtual instrument technology and will introduce the wireless network to environment monitoring and irrigation control to achieve remote datas transmission, real-time acquisition, display and storage. By introducing the fuzzy control, the system realizes the intelligent water-saving irrigation and plays an important role for a more in-depth study of crop growth. Although the characteristics of large amount of information acquisition, the system can meet the demand of the precision control of a wide range of drip irrigation. In this paper, the theory of fuzzy control is combined with the traditional feedback control, constitutes the intelligent control system. The system can obviously improve the problems of traditional feedback control overshoot and slow system stable.The test results show that the system is simple, predictable and reliable. The interface is friendly. It is able to meet the system requirements with high practicability.(1) The system can complete datas acquisition and processing and has manual and automatic control mode. According to humidity, it can intelligently decide whether need irrigation.(2) The system increases the comprehensive and printing function of data curves. We can see the changes of parameters from the data curve expediently.(3)The system adds the fuzzy control system and is verified by MATLAB simulation. It reduces waste effectively and achieves a certain level of intelligence. At the same time, the adaptability of the control system is enhanced.(4) The design realizes monitoring to the remote environment parameters within a network as well as the remote intelligent control of water-saving irrigation.