Abstract: A central server containing a database receives snowfall data from weather stations that are contained at a multitude of different sites within a defined geographical area. The central server stores the snowfall data in the database, correlating the data with various user accounts. For instance, the data is correlated with the account of the owner of the site from which the data was received, and with the accounts of landscape contractors whom the owner of the site has engaged to clear snow from his site. The central server provides alerts to various user accounts based on the snowfall data. For instance, the server provides alerts to site owners based on the snowfall at their sites, and to landscape contractors based on the snowfall at sites they are engaged to clear snow from.

Abstract: An irrigation system is contained at a particular site, where the site may be a commercial address or a residential address. The system includes a weather station that generates temperature data, precipitation data, and any other useful data that might be used by other components of the system. The system also includes an irrigation controller that uses electrical signals to open and close valves, thereby turning sprinklers on and off, whether zone-by-zone or sprinkler-by-sprinkler. The system further includes a host device which communicates with the weather station and with the irrigation controller. The host device includes a computer processor and one or more wireless interfaces. The host device receives the weather data from the weather station and calculates an amount of desired irrigation, generating an irrigation schedule. The host device then controls the irrigation controller according to the generated irrigation schedule.

Abstract: The efficiency of an irrigation system on a property is determined as a difference between the actual water usage at a property and the irrigation water need of the plant on the property. Data for the property are received including at least the location and irrigation area of the property. A reference evapotranspiration value for the property is determined using the solar radiation data derived from the location of the property. The irrigation water need of the property is then calculated from the reference evapotranspiration value and area. The irrigation water need is compared to the actual water use at the property to determined the efficiency of the irrigation system operating thereon.

Abstract: The present invention is directed to a system, method and software program product for detecting and counteracting a temperature sensor failure with an irrigation controller operating in auto adjust watering mode. A plurality of pseudo temperature data are created from solar radiation for a particular location using unique pseudo temperature conversions for each temperature parameter. The pseudo temperature values can be compared to corresponding measured temperature values from the sensor to validate the integrity of the measurement. These pseudo temperature values are used in place of the measured temperatures for calculating a potential evapotranspiration water deficit for the site. Furthermore, if some valid measured temperature data existed prior to the sensor failure, the measured temperature data is compared to the corresponding pseudo temperature data. Any differences detected between the two values can be used to correct the pseudo temperature toward the measure temperature.

Abstract: The present invention is directed to an irrigation controller, method and software program product for generating wire tracker signal transmission across a control wire. The irrigation controller includes a valve actuation control module selectively coupled to each of a plurality of control wires and generating a valve actuation control signal thereon. The valve actuation control signal is a continuous control voltage over a plurality of control signal periods for selectively energizing the selected irrigation valve. Also integrated in the irrigation controller is a wire tracker transmitter module for selectively coupling to each of a plurality of control wires and generating a transmission signal that can be received at a mobile receiver.

Abstract: An intelligent irrigation rain sensor for use in an irrigation system comprises a rain sensor unit and a sensor control unit. The rain sensor unit has a rain catcher reservoir with an open top for receiving rainwater with an internal volume for holding water and tapers into a funnel. At least one droplet detector is positioned directly below the funnel opening that contacts the water droplets from the funnel. The droplet detector includes detection electrodes for sensing a change in an electrical property being monitored by a detection control in the sensor control unit and for discriminating phantom droplets from rain. Upon exceeding a rain threshold amount over measurement time period, the intelligent irrigation rain sensor issues a rain signal to the irrigation controller. The intelligent irrigation rain sensor issues a corresponding dry signal to the irrigation controller after a drying period has elapsed.

Abstract: The present invention is directed to an intelligent water management irrigation system for monitoring the total water usage for a billing site and preventing cumulative water usage from exceeding a water budget by adjusting the amount of water used for irrigation. Irrigation zone priority values are selected for each irrigation zone that specify a percentage of the full water need that the foliage in the zone can survive and are saved in an intelligent water management irrigation (IWMI) controller. The IWMI controller receives water usage information originating from a property's water meter and compares the measured water usage with the allowable water budget. Water usage is tracked separately for the household use and landscape use (irrigation). Prior to each irrigation cycle, the IWMI controller estimates the amount of water that will be needed by the landscape and for household use during the remainder of a billing cycle; household use is given precedence over landscape use.

Abstract: An elbow barbed fitting for use with flexible pipe and the like is provided with a barbed fitting drive cap for cooperating with a compatible drive tool, such as a socket or nut driver. The barbed fitting drive cap is configured as a hexagonal cap, square cap, star cap or other common driver shapes. The barbed fitting drive cap is positioned on the fitting body opposite the opening to the barbed end, but coaxially aligned with the barb. The cross-sectional body width of the barbed fitting drive cap is narrower than a corresponding width of the fitting body for exerting a drive force on the fitting body. Alternatively, the elbow barbed fitting is provided with a drive recess configured as a hexagonal recess, slotted recess, cross point recess, square recess, star recess or other common driver shapes for cooperating with a compatible driver. Common elbow fitting types include 90° or 45° ells.

Abstract: The present invention is directed to an irrigation controller, method and software program product for generating valve control signals for energizing a valve. The irrigation controller includes a valve actuation control module selectively coupled each of plurality of control nodes and generating a valve actuation control signal thereon. The valve actuation control signal is a continuous control voltage over a plurality of control signal periods for selectively energizing the selected irrigation valve. Also integrated in the irrigation is a valve chatter module for selectively coupled each of plurality of control nodes and generating a valve chatter control signal thereon. The valve chatter module selectively and, intermittently, energizes the selected irrigation valve. The irrigation controller may further include a remote controller of remotely controlling the irrigation controller.

Abstract: An automatic irrigation sprinkler controller (10) for controlling a plurality of sprinkler stations is provided. A processor (50) is provided for storing irrigation information and for generating control signals (96, 98) applied to the plurality of sprinkler stations. A function selector switch (18) is provided for allowing the operator to select a function and automatically input selected irrigation information associated with the selected function to the processor (50). Switches (20, 22) are provided for allowing the operator to select irrigation information for the function selected by the function selector switch (18).

Abstract: A sprinkler controller includes a station timing dial having a front and back plate with an intermediate plate positioned therebetween. A plurality of switch plates having a tripper arm attached thereto are positioned around the periphery of the dial with each switch plate positioned between the front and back plates. Adjacent switch plates are positioned on opposite sides of the intermediate plates for movement circumferentially about the dial. The switch plates move such that one plate overlies an adjacent plate, thereby permitting the reduction in size of the station timing dial. The controller includes a clock and calendar dial using a plurality of sliders having a toggle portion and a cam portion. The toggle portion and cam portion are connected by a flexible arm which permits the movement of the toggle portion toward the cam portion to facilitate sliding of the slider switches relative to the clock and calendar dials. The sliders engage control switches for operating the controller.

Abstract: A rotary sprinkler is provided with structure for adjusting the force applied to the impact arm by the impact arm spring. The sprinkler has a laterally directed nozzle cooperating with the arm to rotate the nozzle and an impact arm journaled on a shaft extending above the nozzle. The arm is mounted within a cage extending above the nozzle. The cage includes a pair of arms extending from the nozzle on opposite sides of the shaft and terminating at their upper ends remote from the nozzle in a top plate. A helical spring surrounds the shaft and is secured at its lower end to the arm. A bushing assembly is mounted in the top plate of the cage and receives the top end of the spring. The bushing assembly may be manually adjusted relative to the top plate to vary the force applied by the spring to the impact arm. The sprinkler is mounted in a bucket-like housing positionable within the ground such that the mouth of the housing is flush with the ground surface.

Abstract: A rotary sprinkler is provided with structure for adjusting the force applied to the impact arm by the impact arm spring. The sprinkler has a laterally directed nozzle cooperating with the arm to rotate the nozzle and an impact arm journaled on a shaft extending above the nozzle. The arm is mounted within a cage extending above the nozzle. The cage includes a pair of arms extending from the nozzle on opposite sides of the shaft and terminating at their upper ends remote from the nozzle in a top plate. A helical spring surrounds the shaft and is secured at its lower end to the arm. A bushing assembly is mounted in the top plate of the cage and receives the top end of the spring. The bushing assembly may be manually adjusted relative to the top plate to vary the force applied by the spring to the impact arm. The sprinkler is mounted in a bucket-like housing positionable within the ground such that the mouth of the housing is flush with the ground surface.

Abstract: A rotary sprinkler is provided with structure for adjusting the force applied to the impact arm by the impact arm spring. The sprinkler has a laterally directed nozzle cooperating with the arm to rotate the nozzle and an impact arm journaled on a shaft extending above the nozzle. The arm is mounted within a cage extending above the nozzle. The cage includes a pair of arms extending from the nozzle on opposite sides of the shaft and terminating at their upper ends remote from the nozzle in a top plate. A helical spring surrounds the shaft and is secured at its lower end to the arm. A bushing assembly is mounted in the top plate of the cage and receives the top end of the spring. The bushing assembly may be manually adjusted relative to the top plate to vary the force applied by the spring to the impact arm. The sprinkler is mounted in a bucket-like housing positionable within the ground such that the mouth of the housing is flush with the ground surface.

Abstract: Arc adjustment structure is provided for a rotary sprinkler having a rotatable nozzle supported from a shaft with the reversing mechanism attached to the nozzle and extending from the nozzle in the direction of the shaft. A notched ring is fixedly attached to the shaft below the nozzle. A first wire locking collar has one end compressively encircling the shaft above the annular gear and the opposite end formed in a loop extending radially from the shaft and terminating in a lateral end section for engagement with the teeth of the gear. A second wire locking collar has one end compressively encircling the shaft below the annular gear with the opposite end formed in a loop extending radially from the shaft and terminating in a lateral end section for engagement with the teeth of the gear. The locking collars are positioned such that the loops intercept the actuating arm of the reversing mechanism as the nozzle of the rotary sprinkler rotates on the shaft.