This is an automatic device designed to control the flow of irrigation water through gates in pipes to agricultural fields. It works by using a valve, an actuator to move the valve, and a control unit with a processor that tells the actuator when to open or close the valve. The device can also be controlled remotely, often based on readings from sensors such as soil moisture or temperature.
Why it matters: Filed before widespread, low-power wireless sensor networks and IoT communication protocols. Today, affordable and robust sensor integration, especially for soil moisture and other environmental factors, makes remote, data-driven irrigation control significantly more feasible.
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