Corn, Rice And Wheat Three Crops Automatic Irrigation Systems Research

Water is humans and all biological survival indispensable substances, is the industry and agriculture production, economic development and environmental improvement irreplaceable extremely precious natural resources. China's water resources is not less, and the per capita possession but very poor water quantity, only the world per capita value 1/4. With population growth, agricultural and industrial production, caused the continuous development of the growing contradiction between supply and demand of water. Since from at the beginning of this century, the contradiction between supply and demand of water resources is abnormal prominence. Especially in China, China's large population, available water resources is limited, how to make limited water resources to play a bigger role, before us is a major issue.Tongliao city agriculture is in from traditional agriculture to modern agricultural transformation period of history. And we modern agriculture will require a higher royal hong KangLao, drought, etc, the ability to withstand natural disasters, and we also required to achieve the effective of water resources as possible, thus realize modernization by operation mode. Since it is the modern agriculture, it is that the size of the moisture content of the soil around the high temperature environment, such as environmental requirements crop growth, will be higher for the agricultural production watered the important link, we through the time, water water location, etc to control. This is generally more traditional watering impossible task, want to realize this goal must rely on modern water equipment and related technologies can do it.In recent years, with PLC technology in industrial areas of development, it is now also blended in agricultural fields, such as in agricultural and sideline products processing, etc, the automatic watering control system is PLC automatic irrigation water water-saving theory and the crops will be cultivated organically, through the computer theory of programs designed to help us determine, water supply, soil moisture detection, crop growth and information and meteorological data of automatic monitoring, and use it to control water system, can realize water, soil and other environmental factors simulation optimization, realizing water-saving watering, crop growth and soil temperature the technology control. PLC reliability, flexibility is very suitable for agricultural irrigation, it may, according to the different in different periods of crops, change the water program design. Without going to the wild fields to modify, thus big reduced the need for farmers to rural labor intensity and the realization of the true scale. Harvest for farmers and lay a solid foundation.This paper studies the tongliao weather characteristics and land started two years ago, the weather and land data observed in the last two years, based on a statistical analysis of the observed data of corn, rice and wheat three different crops, the calculation of water and make automatic irrigation system design, this paper selects Japan mitsubishi FX2N-60MR-D hardware equipment and programming software, through understand the three crops production process requirement, according to irrigation programmable controller system's design idea put forward three kinds of crops water-saving irrigation system design principle, design with three crops the water-saving irrigation technical requirements of control system. Completed the hardware system assembly and the connection with the field instruments, take a lot of hardware anti-interference measures. Programmable controller can is flexible and convenient for the configuration complete production process monitoring and fault detection capabilities, to the production and management bring great convenience. To the production process in various control variables can be changing anytime, anywhere, to achieve the process control requirements, ensure quality. Irrigation Meanwhile to the system reliability was analyzed, using a many to improve reliability of measures to improve the system reliability, achieve the purpose of timely right amount water.