| 摘要 |
A water irrigation system includes a water input port, a controller, and a valve device. The water input port is constructed to be coupled to a water conduit receiving water from a remotely located water source. The controller is located near the water input port and is connected to at least one sensor. The valve device includes an actuator located near and connected to the water input port; wherein the valve device is constructed to receive control signals from the controller for providing water to a water delivery unit. The controller is usually battery operated. The actuator may be a latching actuator, a non-latching actuator, or an isolated latching actuator. The sensor may be a precipitation sensor, a humidity sensor, a soil moisture sensor, a light sensor, a temperature sensor or any other sensor used for providing information to the controller. |
