Realization of the significance of the purpose of automatic control of irrigation projects

The application of automatic control technology in the field of irrigation is of great significance for agricultural production and water resource management. Traditional irrigation often relies on manual operation, there are problems such as low efficiency, resource waste and environmental pollution. The irrigation system with automatic control technology can realize precise water control and flexible time scheduling, improve irrigation efficiency, reduce water waste, protect the environment, and improve farmland yield, thus playing a positive role in promoting agricultural production and sustainable development.

First of all, automatic control technology can realize precise water quantity control. Traditional irrigation methods tend to irrigate according to experience and feeling, which can easily cause the problem of insufficient or excessive water. The automatic control technology can monitor the soil moisture, weather conditions and crop water demand and other information in real time through sensors and controllers, and automatically adjust the amount of irrigation water according to the actual situation. This precise water control can ensure that the crops get the right amount of water supply, to avoid the adverse effects of excessive or insufficient water on crop growth, and improve the yield and quality of farmland.

Secondly, automatic control technology can realize flexible time scheduling. Traditional irrigation methods often have a fixed irrigation time, can not be flexibly adjusted according to crop water demand and weather conditions. The automatic control technology can intelligently control the irrigation time and frequency according to the growth stage of the crop, soil moisture and meteorological conditions and other factors. Through reasonable time scheduling, irrigation can be avoided in high temperature and windy hours, reducing water evaporation and wind erosion loss during sprinkler irrigation, improving irrigation efficiency and saving water resources.

In addition, automatic control technology can realize remote monitoring and management. Through the Internet and sensor technology, farmers can monitor the water status of farmland and the operation of the irrigation system in real time, timely detection of problems and adjustments. At the same time, farmers can also remotely control the start and stop and adjustment of the irrigation system according to the actual situation, improving management efficiency and reducing labor input. The advantages of adopting automatic control for irrigation projects are mainly in the following aspects:

(1) Precision? Automation control can not only realize the whole irrigation system each group of irrigation unit precise opening and closing time controller, from time to time to ensure that the whole area of irrigation uniformity and accurate control of time, but also can realize uninterrupted irrigation, as long as the pre-set irrigation program, no matter whether someone to operate or in how bad the weather, it will be in accordance with the set time uninterrupted execution. For example, the irrigation program can be executed at night; garden irrigation can be very convenient to stagger the city water and electricity peak irrigation.

(2) Efficient? For a large irrigation area, due to the large span of the area, if the manual operation and management, the efficiency is very low, to meet the irrigation of the entire region, a large number of manual collaborative labor to open and close the irrigation unit, and the use of automated control, there is no need for a large number of manual labor to manually open and close the valves every day, can be operated by the field controller in accordance with the system work system of all the irrigation units, or you can let all the irrigation Unit in the set program to run automatically, or even through a computer to achieve the whole area or a larger area of irrigation management and monitoring, greatly improving the operation and management efficiency, saving labor expenses.

(3) Water-saving gain sex? Automation control is not only reflected in the precise control of time, more importantly, he can connect various types of sensors. Not only can ensure that in extreme climatic conditions such as high winds or rainfall, automatically stop irrigation, to avoid the waste of water caused by ineffective irrigation, but also can be connected to intelligent sensors, according to the day's meteorological conditions to calculate the amount of evaporation evapotranspiration, automatic generation of irrigation program, the real realization of the need to replenish water to improve the quality of irrigation. For sloping land, the automatic controller can be set to sprinkler irrigation intermittent irrigation, the past continuous irrigation is prone to ground runoff, by dividing the irrigation into several times, in order to reduce ground runoff on sloping land, not only to save the amount of irrigation water, but also to increase the yield, improve product quality, and improve economic efficiency.

(4) convenience? Field controllers manage the irrigation operation under a certain area, just a simple programming or a key to open the operation, etc. can complete the daily irrigation of this area, this intensive management provides convenience for the manager. And some controllers support the addition of handheld wireless remote control device, you can handheld remote control at any location in the field to open or close the designated valve, greatly facilitating the daily management of the administrator's work.

(5) Intelligence? Sensors bring scientific management, can be completely based on the day's meteorological conditions or different root depth effective rainfall to develop and realize the daily intelligent irrigation system. At the same time, managers can also simply get the needed management information from the controller or central computer, such as irrigation system, work log? , daily/quarterly/yearly water consumption, meteorological information and effective rainfall at different root depths. In addition, the more advanced control systems at this stage also support remote remote control technology, such as the use of existing cell phone networks, computer LANs, etc. to achieve remote management and monitoring, completely independent of geographical constraints.

(6) security? Artificial management of the way there are a large number of manual management activities, like some road isolation zone, artificial irrigation operation there is a great security risks. In addition, manual irrigation often forget to cover the valve well cover, if it is in the park or square with more tourists, the tourists will be in danger if they do not pay attention. For the use of automated control systems, all piping facilities and control facilities are installed hidden underground, and there will be no manual management activities. Especially for the use of water to realize automated irrigation, reduce the daytime irrigation, reduce the impact of water on the health of visitors.

It seems that automation control has many advantages, with the continuous development of social and economic, labor costs are more and more expensive, the management level is higher and higher, to take the automation of the initial investment may be higher, but in the long run, whether it is water-saving, or from the savings in terms of labor, etc., is a reasonable choice.