Smart irrigation system for farming
Background
With the increasing contradiction between water supply and demand, all countries attach great importance to the development of water-saving agriculture. In addition to the widespread use of advanced water-saving irrigation technologies such as trickle irrigation and micro-irrigation in developed countries. The smart irrigation system for farming is also used to implement precision irrigation.
Smart irrigation system for farming can improve the level of irrigation management. Change the arbitrariness of human operation. At the same time, the intelligent agricultural automatic irrigation system can reduce irrigation labor and reduce management costs. Significantly improve efficiency. Therefore, promote the implementation of automatic irrigation and change the extensive irrigation methods that currently exist. Improving the utilization rate of irrigation water is one of the necessary measures to effectively solve the problem of irrigation water saving.
The working principle of thesmart irrigation control system
When the irrigation system is working, the humidity sensor collects the dry humidity signal in the soil. The detected humidity signal is converted by the module, and the standard current analog signal is converted into a humidity digital signal, which is input to the programmable controller. 50%-60%RH is preset as the standard humidity value in the programmable controller. The actual measured humidity signal is compared with 50%-60%RH. It can be divided into three situations: within this range, beyond this range, and less than this range.
The programmable controller transmits the control signal to the inverter. The frequency converter adjusts the speed of the motor according to the humidity value. The electric motor drives the water pump to draw water from the water source. When irrigation is needed, the solenoid valve opens automatically. Water is delivered to the sprinklers through the main pipeline and branch pipelines, and the sprinklers automatically rotate at their respective rotation angles. The solenoid valve is automatically closed at the end of irrigation. In order to avoid that the nozzles far away from the water source cannot be supplied with sufficient pressure. Install a pressure gauge on one side of the solenoid valve to ensure that the water pressure of each nozzle meets the set sprinkler irrigation range. Avoid the phenomenon that the nozzle range is reduced due to insufficient water pressure. The entire system works in coordination to realize intelligent control of lawn irrigation.
