Automatic irrigation system

[0020] Example 1:

[0021] The structure diagram of this embodiment is as figure 1 As shown, it includes an irrigation system and a control system. The irrigation system is composed of a pipeline connected with a water source, a water pump, and a sprinkler in sequence. It is characterized in that: the control system consists of a water pump, an operating panel, a PLC, a humidity sensor, a rainfall sensor, and a water pressure The sensor and the sprinkler are connected by wires. The input end of the PLC is connected to the operation panel, the humidity sensor and the rain sensor, and the output end is connected to the water pump and the sprinkler.

[0022] Humidity sensor and rain sensor monitor the environment, after processing by PLC, control the opening and closing of water pump and nozzle according to program settings (the nozzle has an independent switch, which can be a solenoid valve or other valves with equivalent functions ), the water pressure sensor can monitor whether the w

[0023] Example 2:

[0024] This embodiment is further optimized on the basis of the above embodiment, and further, as figure 1 As shown, the number of water pumps (2) shown is two, each pump (2) has a water pressure sensor (8), and each water pressure sensor (8) is connected to a check valve (9). , The water outlet of the one-way valve (9) is connected in parallel through a pipe, and then connected to the nozzle (5) through a pipe, the water pressure sensor (8) is connected to the input end of the PLC (4) through a wire; the nozzle (5) The number of) is 1 or more, and each nozzle (5) corresponds to a humidity sensor (6); the system also has a touch screen (10), which is connected to the PLC (4) through a communication interface ). The other parts of this embodiment are completely the same as the above-mentioned embodiments, so they will not be described again.

[0025] Two pumps can be used separately, PLC can record the running sequence and length of each pump, and two pumps can b