The establishment of automatic irrigation system for agriculture can improve water-saving levels for agriculture. Although existing water-saving irrigation systems have obvious effects on reducing crop irrigation and increasing crop yield, the variability of manual operation makes it difficult to further improve the rationality of irrigation. Automatic control irrigation collects and analyzes various factors such as soil, crops, and weather through the operating system, sends relevant information instructions to control valves in the field, and reduces the impact of unreasonable factors in manual analysis and decision-making on agricultural irrigation. Moreover, it is more convenient and efficient than manual operation.
Agricultural automation irrigation systems are composed of wireless smart gateways, drip irrigation smart controllers, wireless collectors, solar panels, various sensors (soil moisture sensors, temperature, humidity, wind speed, wind direction, rainfall, light, leaf moisture, tree diameter sensors, soil conductivity sensors), control solenoid valves, video cameras, high-definition hard disk recorders, and cloud server software.
Data acquisition function: capable of receiving analog signals collected by soil moisture sensors.
Function of timing control and loop control: users can flexibly choose the control method as needed.
Automatic start-stop function: the control system automatically starts spraying irrigation according to the dryness and wetness of the soil, and controls the motor to rotate at the required speed.
Motor overload protection function: when the motor is overloaded, it immediately stops rotating, and the irrigation process stops, and the fault indicator light flashes and alarms. After the overload is eliminated, it automatically resumes operation.
Automatic stop on cloudy and rainy days: use the switch quantity of the humidity sensor as an input signal of a programmable controller to realize the function of controlling the relevant program.
Power saving function: the timing controller can normally count when the power is off, so it is used as a power controller for the programmable controller.
Emergency stop function: when there is an emergency accident, press the emergency stop button, the motor immediately stops running, the valve closes, and the sprinkler stops irrigating.
Automatic fault detection function: when the irrigation system has a fault, such as a broken water pipe (water pressure is zero), sensor failure, motor failure, frequency converter failure, solenoid valve failure, etc., the pump immediately stops running, the solenoid valve closes, and the fault alarm light flashes with an alarm.
Realize wireless transmission of remote data, realize remote monitoring of farmland irrigation, and reduce labor intensity.
Under unmanned circumstances, remote automatic command can be carried out, and the water can be timed and directly provided to the crops in proportion according to the growth needs of the crops. The use of this system can greatly improve the efficiency of water use for irrigation.
Through advanced IoT technology, users can remotely monitor and receive warnings at any time and anywhere through a computer or mobile phone.