What is an agricultural irrigation system? What is the principle of it?

In China, agricultural water consumption accounts for about 80% of total water consumption. Because agricultural irrigation efficiency is generally low, water utilization rate is only 45%, and countries with high water resource utilization rate have reached 70% to 80%. The problem of agricultural irrigation water is very important to alleviate the shortage of water resources. At this time, the intelligent agricultural irrigation system came into being in this context.

The agricultural irrigation system is a comprehensive measure to obtain the best economic, social and ecological benefits of agriculture based on the law of crop water demand and local water supply conditions, and the efficient use of precipitation and irrigation water. In other words, water-saving irrigation includes comprehensive measures such as technology, management, and economy, not a single means.

How agricultural irrigation systems work:

When the agricultural irrigation system is working, the humidity sensor collects the dry humidity signal in the soil, and the detected humidity signal is converted by the A/D module, and the standard current analog signal is converted into a humidity digital signal and input to the programmable controller. The programmable controller is preset with 50%-60% RH as the standard humidity value. The actual measured humidity signal is compared with 50%-60% RH. It can be divided into: within this range, beyond this range, less than this range. three situations.