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Topic: Controller (irrigation)

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	Controller (irrigation) - Wikipedia, the free encyclopedia
		An irrigation controller is a device to operate automatic irrigation systems such as lawn sprinkler systems and drip irrigation systems.
		In this scenario, the controller is connected to an electrical circuit that operates a solenoid attached to the valves.
		Several manufacturers are now producing controllers that can be automatically updated by either a simple weather sensor or via a pager that receives a daily update from a network of local weather stations.
	en.wikipedia.org /wiki/Controller_(irrigation) (325 words)

	Irrigation System Controllers (Site not responding. Last check: 2007-11-03)
		Open loop control systems have the advantages that they are low cost, readily available, and many variations of the devices are manufactured with different degrees of flexibility related to the number of stations and schedule specification.
		Irrigation timers are simple controllers consisting of clock units capable of activating one or more subunits of the irrigation system at specified times.
		A closed control loop consists of: 1) Monitoring the state variables, 2) comparing the state variables with their desired or target state, 3) deciding what actions are necessary to change the state of the system, and 4) carrying out the necessary actions.
	edis.ifas.ufl.edu /AE077 (3860 words)

	Controller - Wikipedia, the free encyclopedia
		Controller (irrigation), a device to turn irrigation systems on and off
		Controller (DC Comics), an alien race in DC comics
		The Controller is a super-complex AI system that controls the entire world of the PlayStation 2 video game Armored Core 3
	en.wikipedia.org /wiki/Controller (131 words)

	World Intellectual Property Organization (Site not responding. Last check: 2007-11-03)
		The irrigation system according to claim 2, further including means for computing the ratio between a signal in the first band wherein solar radiation is absorbed by water, to a signal in the second band wherein solar radiation is not absorbed by water.
		The irrigation controller according to claim 11, wherein the input channel includes a first part for receiving first signals relating to a first frequency band and second signals relating to a second frequency band, and wherein the computing means further include means for computing the ratio of the first signals to the second signals.
		The irrigation control method according to claim 16, wherein in step (A) the data includes readings from IR sensors in two frequency bands, comprising a first band wherein solar radiation is absorbed by water, and a second band wherein solar radiation is not absorbed by wate r.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/38946.010531&ELEMENT_SET=DECL (5458 words)

	Irrigation
		The controller is usually set to water several times each week for the same time per zone, most likely based on the amount of water needed by the sunniest lawn area on the hottest day of the summer, and is left that way for the entire summer.
		Because the area of irrigation control is rapidly advancing at present, you may want to conduct additional research into the status of new technologies prior to upgrading your existing irrigation control equipment.
		Irrigation is scheduled to provide moisture replenishment based on the length of time it takes for the interface between moist and dry soil to progress downward in the root zone.
	www.portlandonline.com /water/index.cfm?c=30708 (1680 words)

	Irrigation controllers
		Controllers are simply electronic timers that are programable to switch irrigation valves on and off at specified times.
		Some controllers are simple single or dual program units like the Slim Dial while the more functional controllers like the Total Control and Micro Master series, are able to perform far more complex irrigation sequences and may be connected to a computer or even linked with radio telemetry.
		This is one of the few controllers on the market that allows you to monitor and adjust the controller from your home or office via telephone and PC link.
	www.irrigationwarehouse.com.au /category125_1.htm (883 words)

	Sprinkler Controller
		Control your sprinklers from your home, office or cellular telephone with any X-10 compatible telephone interface.
		A 4-zone controller can be used with a 8-zone controller to control 12 sprinkler valves, and share one weather sensor (any type).
		The 8-zone controller communicates with the 4-zone controller via X-10 signals to update the status of the optional weather sensor.
	ourworld.compuserve.com /homepages/rciautomation/p6.htm (764 words)

	Using Water Wisely with Automated Irrigation Systems
		These controls may be "the timer," "the time clock" or "the controller." The controller is a combination of a clock and calendar and instructions that you provide.
		The installer or contractor of your irrigation system should provide you with two things: the manufacturer's instruction manual for your controller and a "controller chart." A controller chart is a drawing of your landscape showing areas covered by each irrigation zone of the system.
		A controller that will let you easily adjust the operating time of each irrigation zone for the seasons is desirable and will save a considerable amount of water.
	pubs.caes.uga.edu /caespubs/pubcd/C870.htm (1327 words)

	Irrigation Control Systems (Site not responding. Last check: 2007-11-03)
		The most common and logical location to mount an irrigation controller is within a garage or enclosed "shop" separate from the residence, but protected from weather and vandals.
		Mount the controller at chest level on a stud in the frame of the structure near an AC outlet.
		By selecting an automatic irrigation controller with only the features appropriate for the specific site and end user, an affordable product can be selected that will save countless hours of time and inches of irrigation water.
	www.igin.com /Irrigation/ircontrlr.html (780 words)

	Irrigation_Sys (Site not responding. Last check: 2007-11-03)
		Control wires to be routed to control valves from controller through a 3-inch electrical conduit and sweep through the floor of the building.
		Irrigation elements drawn in hardscape areas on the plans is for graphic clarity only and are meant to be placed in planting areas.
		After all irrigation pipe lines and risers are in place and connected, and prior to installation of irrigation heads, the control valves shall be opened and full head of water used to flush out the system.
	www.tempe.gov /engineering/irrigation/Irrigation_Sys.htm (9248 words)

	Links to Irrigation Controller Manufacturers
		Standard controllers have one individual wire going to each valve, plus a single common wire that all the valves are connected to.
		For example, a City Parks department might have a central control system where the central controller is located at park headquarters, and separate satellite controllers are located at each of the city parks.
		Irrigation controllers, weather stations, and software for scheduling irrigation based on ET or current weather condtions.
	www.irrigationtutorials.com /links/controllermanf.htm (1068 words)

	FertiGator - Automatic Fertilization for Irrigation Systems
		The EZ-1 and EZ-2 controllers were designed to be installed in addition to your standard irrigation system controller.
		The EZ and AR controllers are wired into the sprinkler system controller and is usually mounted beside it.
		The FertiPro Controller has non-volatile memory, which insures that your settings will not be lost if you lose power or unplug the system, even for the entire winter.
	www.fertigator.com /controllers.htm (1097 words)

	Testimonials (Site not responding. Last check: 2007-11-03)
		In May of 2000 an irrigation designer asked Irrigation Craft to design and manufacture a pump station for a new irrigation system being designed for the Cap Juluca Resort, Anquilla, British West Indies.
		Irrigation Craft had no experience with the Logic controller so we were interested in how the controller would work out.
		We had purchased a spare controller (common practice for remote installations) and wired it so that we could plug the spare controller into a wall socket in their office and train their people.
	www.hitproductscorp.com /testimonials.htm (303 words)

	Automatic irrigation water conservation controller - Patent 4922433
		The two most common types of irrigation controllers monitor moisture levels during the irrigation cycle when the sprinkler heads are on, and those that monitor moisture only at the beginning of the irrigation cycle.
		During the first full irrigation cycle of the clock, during the "learning" phase, the inventive controller system also times the duration in seconds of each of the zones that are operating in order to gather data for the water conservation cycles.
		Address and control lines of MPU 36 are channeled through a decoder 37 and through MSI circuits to provide microprocessor 36 with the facility to address and control the I/O ports of circuits 14, 20, 24 and 29 and the retrieval of instructions from the application ROM 38.
	www.freepatentsonline.com /4922433.html (8636 words)

	Sunset: What can an automatic controller do for your irrigation system? - includes related article on controller jargon
		A controller with a limited calendar (one whose maximum gap between waterings is four days, for example) can force you to water so frequently that many kinds of plants would suffer.
		Other useful features are 10-hour run times (good for drip irrigation), extended calendar periods (14 or 31 days), rechargeable battery backup to retain both the program and the time in a power failure"select-a-day" scheduling, and weatherproof casing for outdoor installation.
		Programming a controller involves making four primary settings: the time of day on the controller, which days you want to water (calendar), the time you want the watering cycle or repeat cycles to begin (start time), and how long you want to water plants on each valve or station (run time or station watering time).
	www.findarticles.com /p/articles/mi_m1216/is_n6_v182/ai_7605451 (1426 words)

	Winterizing Your Irrigation System
		The controller continues to keep time, the programming information (start times, valve run times, etc,) isn't lost, and the clock continues to run, all that changes is that the valves don't come on.
		The battery on some controllers is located behind a face plate where you can't see it (why do the manufacturers do stupid things like that?), so if you don't see a battery, remove the wiring compartment cover and look for it in there.
		A few of the high-end controllers have built in battery chargers (look at the batteries, they should be labeled "rechargeable" if the clock has a built in charger).
	www.irrigationtutorials.com /winter.htm (5665 words)

	iCentral: Frequently Asked Questions
		The controller and communication card may be purchased as a package or the iCentral card may be added to any existing Eagle controller at any time.
		A typical iCentral installation for a wall mount controller has three steps: (1) hang the controller on the wall (three screws) (2) mount the small antenna to the enclosure (An enclosure knockout is provided) (3) wire the AC power, ground, and station wiring connections in the traditional fashion.
		Because control is provided through the internet, maintenance contractors may instantly respond to owners requests for field changes thereby negating the need for physical on-site visits.
	www.rainmaster.com /icentral_faq.htm (2342 words)

	(WO 01/38946) IRRIGATION CONTROLLER SYSTEM AND METHOD (Site not responding. Last check: 2007-11-03)
		There are three basic aspects to the invention: An irrigation control system using infrared remote sensing (5); an irrigation controller (4) with means for processing signals from infrared remote sensors (5) and other sensors (14), and for generating irrigation control signals responsive to the information received from the various sensors, including the remote sensors.
		The controller (4) controls the secondary valves (13), the fertilizer valve (22) and the fertilizer pumps (23).
		The irrigation control system uses data readings from IR sensors in two frequency bands.
	wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/38946.010531&... (185 words)

	University of Florida Agricultural&Biological Engineering Department (Site not responding. Last check: 2007-11-03)
		Irrigation practices, crop water requirements, water use efficiency and soil water management in the state of Florida are primary responsibilities.
		Responsibilities included research on drip irrigation scheduling for various fruit trees in the first three years of growth, statistical analysis and computer modeling of irrigation treatments; and teaching AE 071 (applied mathematics).
		The improvement results in improved collection of water from rain or irrigation through a funnel-like member extending beyond the perimeter of the main body.
	www.agen.ufl.edu /newsite/mainpages/Faculty_pages/haman.htm (5397 words)

	Green Building Encyclopedia - Glossary of Green Building Terms
		Based on the measured feedback, the control system alters its output in an attempt to force the controlled variable to reach a given setpoint.
		A ventilation-control strategy in which the concentration of CO2 is the measured variable that is controlled to a setpoint by modulating outdoor airflow.
		HVAC system controls that operate mixed air dampers to mix return and outdoor air to obtain air of a temperature appropriate for “free cooling.” Economizer controls are used during periods when outdoor air requires less cooling energy input than return air.
	www.whygreenbuildings.com /glossary.php (6282 words)

	irrigation in india - irrigation & watering (Site not responding. Last check: 2007-11-03)
		This is where British irrigation in India begins, at the head of the Cauvery Delta, near Tiruchirapalli.
		Groundwater is the backbone of irrigated agriculture in India.
		irrigation in india, bladder irrigation, irrigation controller, ewing irrigation,
	irrigationwatering.eztosearch.net /index25.htm (493 words)

	Fertigation Technologies Announces iCon™, the Only Universal Controller for Residential Irrigation and Automatic ...
		Our FertiGator™ is the only patented, controllable, fertilizing and supplement distribution device, allowing a homeowner or lawn care company to control, by zone or irrigation head, how much lawn treatment to distribute.
		Fertigation Technologies unveils iCon™, its universal automatic lawn care controller at the upcoming international Irrigation Association Show in Tampa, FL from November 14-16, 2004.
		The controller is currently available for 6, 9, or 12 irrigation stations, and is soon available for irrigation systems with up to 24 stations.
	www.emediawire.com /releases/2004/11/emw175421.htm (681 words)

	Irrigation Controller - Compare Prices, Reviews and Buy at NexTag - Price - Review
		related searches:nasal irrigation,oral irrigation,sinus irrigation,lawn irrigation system,xbox controller,game controller,controller sata,raid controller,scsi controller,1394 controller,fan speed controller,flight controller,gamecube controller,charge controller,nintendo controller,video controller,nitrous controller,logitech controller,attendance controller,keyboard controller
		E Class controllers offer powerful, flexible irrigation control for any residential landscape.
		The affordable water management tool to monitor and control a network of irrigation systems from a single central location.
	www.nextag.com /irrigation-controller/search-html (279 words)

	Toro - Irrigation Controller Repair
		Keep your irrigation system running with the Toro Controller Repair board replacement program.
		Through your distributor, Controller Repair provides controller boards ready for immediate board exchange to assure that controller downtime is minimal and your turf stays protected.
		Our technicians are continually updating engineering specifications to provide quality you can count on when you need it the most.
	www.toro.com /golf/services/controller_repair.html (154 words)

	Irrigation - Sprinkler Controller
		Makers of irrigation equipment for landscaping and agricultural purposes.
		Irrigation products for residential, commercial, and large turf sites.
		Irrigation system maintenance and repair support, parts, and equipment.
	www.irrigationindex.com /sprinklercontroller (483 words)

	Northern Rain Irrigation Toro Custom Command Controller (Site not responding. Last check: 2007-11-03)
		Click sprinkler heads below to be taken to that page.
		The custom command controller is designed to meet a wide variety of water requirements.
		Includes 16 start times and the ability to schedule for specific days.
	www.northernrain.net /controller.htm (45 words)

	Damon Cooper's BLOG
		I'm hoping to cut my water consumption in half with this controller and increase the health and look of my lawn and landscape vegetation.
		The AccuWater controllers run the TINI-OS and Java platform from Maxim/Dallas Semiconductor, and can connect to a full locally installed weather station with all its instruments (optional - I have this installed), PLUS it downloads weather forecast data from the internet.
		Each night, the AccuWater Data Center calculates the schedule for each zone (if required), and the controller downloads it and executes it, contingent on local conditions (ie if it starts to rain after downloading that night's schedule, the amount of watering is adjusted downward, or eliminated, depending on the amount of local rainfall).
	www.dcooper.org /blog/client/index.cfm?mode=entry&entry=D54DD6AC-4E22-1671-5043E810226D8067 (367 words)

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