An Alternate Wetting and Drying (AWD) method/system for irrigating a field using a pump comprising an outlet supplying water to the field and an inlet connected to a water source is disclosed. The method/system comprises a sensor placed at a location in the field for sensing a water depth below a surface of the field and transmitting the water depth to a controller located remotely from the sensing location using a wireless connection. The controller enables the pump when the sensed water depth is below a threshold depth and disables the pump when the sensed water depth is above a threshold depth.

Several embodiments provide wireless irrigation system and related methods. In one implementation, an irrigation system includes a plurality of valves; a plurality of solenoids; a plurality of circuits, at least one circuit in a circuit housing attached at least partially to a dedicated solenoid housing of a respective one of the plurality of solenoids; a plurality of wireless transceivers, at least one wireless transceiver in the circuit housing attached at least partially to the dedicated solenoid housing of the respective one of the plurality of solenoids and configured to wirelessly communicate via a communication network; and the communication network comprising the plurality of wireless transceivers for communication with the plurality of solenoids.

Methods and systems for analyzing a field. The methods and systems acquire a thermal image indicative of thermal energy emitted by the soil and/or plants in the field and process the thermal image to assess variations in certain characteristics of the soil and/or plants.

Disclosed embodiments of the invention include methods and systems for upgrading an existing irrigation system to increase its sensing and control capability without requiring extensive rewiring. A controller module is installed between an irrigation controller and a zone valve and physically proximate to the irrigation controller without disturbing most of the existing wiring between the irrigation controller and the zone valve. A field module is installed between the controller module and the zone valve without disturbing most of the existing wiring between the irrigation controller and the zone valve. The controller module and field module are the communicatively coupled primarily using the existing wiring. The controller module may encode commands transmitted to the field module and/or decode encoded data transmitted from the field module. The field module may encode data transmitted to the controller module and/or decode encoded commands transmitted from the controller module.

A water delivery system includes a water input port, a control circuit, 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 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 may be battery operated. The actuator may be a latching actuator, a non-latching actuator, or an isolated latching actuator. The controller may include a microcontroller coupled and to a sensor. The system may include a communication interface constructed and arranged to provide data to the microcontroller. The control circuit may include a power consumption controller. The control circuit includes a voltage regulator.

A method and system for irrigating a field adjacent a watercourse is disclosed comprising a plurality of pumps along the watercourse and measuring from time to time at a plurality of measuring locations the salinity, the pH, the temperature and the turbidity of the water. The measuring locations are different from the pumping locations. A real time salinity, pH, temperature and turbidity at the pumping locations is predicted from the measured values and the pumps selectively disabled or enabled on the predicted salinity, pH, temperature and/or the turbidity.

Methods and systems for analyzing a field. The methods and systems acquire a thermal image indicative of thermal energy emitted by the soil and/or plants in the field and process the thermal image to assess variations in certain characteristics of the soil and/or plants.

Methods and systems for analyzing a field. The methods and systems acquire a thermal image indicative of thermal energy emitted by the soil and/or plants in the field and process the thermal image to assess variations in certain characteristics of the soil and/or plants.

Methods and systems for analyzing a field. The methods and systems acquire a thermal image indicative of thermal energy emitted by the soil and/or plants in the field and process the thermal image to assess variations in certain characteristics of the soil and/or plants.

A method and system for irrigating a field adjacent a watercourse is disclosed comprising a plurality of pumps along the watercourse and measuring from time to time at a plurality of measuring locations the salinity, the pH, the temperature and the turbidity of the water. The measuring locations are different from the pumping locations. A real time salinity, pH, temperature and turbidity at the pumping locations is predicted from the measured values and the pumps selectively disabled or enabled on the predicted salinity, pH, temperature and/or the turbidity.

Additionally, there is disclosed an Alternate Wetting and Drying (AWD) method/system for irrigating a field using a pump comprising an outlet supplying water to the field and an inlet connected to a water source. The method/system comprises a sensor placed at a location in the field for sensing a water depth below a surface of the field and transmitting the water depth to a controller located remotely from the sensing location using a wireless connection. The controller enables the pump when the sensed water depth is below a threshold depth and disables the pump when the sensed water depth is above a threshold depth.