Sprinkler controller which computes sprinkler cycles based on inputted data

• US 4,646,224 A
• Filed: 12/05/1983
• Issued: 02/24/1987
• Est. Priority Date: 12/05/1983
• Status: Expired due to Fees

• Current Assignee: L.R. Nelson Corporation (Robert Bosch GmbH)
• Original Assignee: L.R. Nelson Corporation (Robert Bosch GmbH)
• Inventors: Ransburg, David P., Wahlstrom, Sven E., Fletcher, Douglas C.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US06/558,043
• Time in Patent Office: 1,177 Days
• Field of Search: 364/143, 364/144, 364/145, 364/146, 364/200, 364/420, 364/900, 364/186, 137/624.18, 137/624.2, 239/63-70, 417/12, 417/27, 417/316, 417/505, 371/20
• US Class Current: 700/14
• CPC Class Codes: A01G 25/16 Control of watering
• CPC Class Codes: A01G 25/165 Cyclic operations, timing systems, timing valves, impulse operations
• CPC Class Codes: Y10T 137/86445 Plural, sequential, valve actuations
• CPC Class Codes: Y10T 137/86461 Variable cycle

Abstract

A sprinkler system including a controller having a manual data entry device, a processor and a sprinkler controller. Data is entered through the data entry means relating to conditions in each of a number of zones in which sprinkling is to occur with respect to the amount of water needed to be applied to that zone and the soil water infiltration rate. Upon receiving this information, the processor determines for each zone the number of cycles and the length of time in each cycle that water is to be applied not only so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle, but also so that the total amount of water needed by that zone is applied. The processor employs the number of cycles and the length of on time per cycle to organize the cycles for all of the zones, creating an application program. The application program is employed by the sprinkler controller to generate control signals for executing the application program on an automatic basis. An operator provides data concerning which days an application is desired, the type of soil in the area to be irrigated, the type of sprinkler for each zone, the water need of the vegetation in each zone and the desired start time. Then, the controller calculates the number of cycles for each zone per application and the length of time in each cycle the sprinkler is to be on.

Claims

1. Apparatus for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said apparatus comprising:

data entry means for manually entering prior to irrigation data related to conditions in each of said zones with respect to the amount of water needed to be applied and the soil water infiltration rate;

processing means responsive to said data entry for performing the following functions;

(1) accepting said conditions entered prior to irrigation with said data entry means, (2) determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and (b) the total amount of water needed in that zone is applied, and (3) organizing said number of cycles and said length of time for all of said zones to create an application program; and

means responsive to said organizing function of said processing means for generating said control signals for said zones in accordance with the application program.

22. Apparatus as in claim 1, 2, 9, 11, 12, 13 or 21, wherein:

said irrigation system includes a pump for providing water to said zones and valve means, responsive to said control signals, for selectively permitting water from said pump to reach said applicator means in each zone; and

said control signal generating means includes means for energizing said pump a predetermined period of time before any of said valve means are actuated.

23. Apparatus as in claim 1, 2, 9, 11, 12, 13 or 21, wherein:

said apparatus further comprises lines for conducting said control signals to said providing means in each of said zones; and

said processing means also causes said generating means to test at least said lines for zones to which water is to be provided prior to generating said control signals.

24. Apparatus as in claim 1, 2, 9, 11, 12, 13 or 21, wherein said processing means repeatedly performs said functions (1) through (3) at predetermined time intervals.

25. Apparatus as in claim 1, 2, 9, 11, 12, 13 or 21, wherein said organizing function of said processing means orders said cycles to occur sequentially, one cycle for each of said zones in which watering is to occur, before the next cycle is selected for any of said zones.

26. Apparatus as in claim 1, 2, 9, 11, 12, 13 or 21, wherein:

said apparatus further comprises start time entry means for manually entering a time at which said application program is to begin; and

said generating means generates said control signals in response to coincidence between said start time and the present time of day.

27. Apparatus as in claim 1, 2, 9, 11, 12, 13 or 21, wherein:

said apparatus further comprises means for generating a manual operation signal; and

said generating means initiates said control signals in response to said manual operation signal.

2. Apparatus for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said apparatus comprising:

data entry means for manually entering prior to irrigation data related to condiitons in each of said zones including the soil water infiltration rate;

processing means responsive to said data entry means for performing the following functions;

(1) accepting said conditions entered prior to irrigation with said data entry means, (2) determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and (b) the total amount of water needed in that zone is applied, and (3) organizing said number of cycles and said length of time for all of said zone to create and application program; and

means responsive to said organizing function of said processing means for generating said control signals for said zones in accordance with the application program.

3. Apparatus as in claim 2 wherein:

said apparatus further comprises water volume entry means for manually entering data related to the overall amount of water needed in all of said zones;

said data entry means includes means for manually entering data related to the general amount of water needed by vegetation in each of said zones; and

said processing means is further responsive to said water volume entry means for determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle, taking into consideration said water volume entry means and said data entry means, and the total amount of water needed in that zone is applied in accordance with said water volume entry means and said data entry means.

4. Apparatus as in claim 2 wherein:

said apparatus further comprises day entry means for manually entering data related to the days on which irrigation is to occur;

said data entry means includes means for manually entering data related to the amount of water needed by vegetation in each of said zones; and

said processing means is also responsive to said day entry means for determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle, on the days specified, in accordance with the specified amount of water needed for vegetation, does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied over the days selected in accordance with the selected amount of water needed for vegetation in each zone.

5. Apparatus as in claim 2 wherein:

said data entry means includes means for manually entering data related to the type of said applicator means employed in each zone and the amount of water needed by vegetation in each zone; and

said processing means determines the number of cycles and the length of time in each cycle for each of said zones in accordance with the type of said applicator means specified and the specified amount of water needed by vegetation in each of said zones.

6. Apparatus as in claim 2 wherein:

said apparatus further comprises water volume entry means for manually entering data related to the overall amount of water needed to be applied to all of said zones and day entry means for manually entering data related to the days on which irrigation is to occur;

said data entry means includes means for manually entering data related to the amount of water needed by vegetation in each of said zones; and

said processing means is also responsive to said water volume entry means and said day entry means for determining for each zone the number of cycles and the length of time in each cycle in accordance with the overall water volume specified by said water volume entry means, the days on which irrigation is to occur as specified by said day entry means and the specified amount of water needed for vegetation in each of said zones.

7. Apparatus as in claim 2, wherein:

said apparatus further comprises water volume entry means for manually entering data related to the overall amount of water needed to be applied to all of said zones;

said data entry means includes means for manually entering data related to the type of said applicator means employed in each of said zones and the amount of water needed to be applied to vegetation in each of said zones; and

said processing means is also responsive to said water volume entry means for determining for each zone the number of cycles and the length of time in each cycle in accordacne with the overall water volume specified, the type of said applicator means specified and the water needs of vegetation in each zone specified.

8. Apparatus as in claim 2, wherein:

said apparatus further comprises day entry means for manually entering data related to the days on which irrigation is to occur;

said data entry means includes means for manually entering data related to the type of said applicator means employed in each zone and the amount of water needed to be applied for vegetation in each zone; and

said processing means is also responsive to said water volume entry means for determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water in accordance with the specified days on which irrigation is to occur, the specified type of said applicator means employed in each zone and the specified amount of water needed for vegetation in each zone.

9. Apparatus for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said apparatus comprising:

data entry means for manually entering prior to irrigation data related to conditions in each of said zone;

water volume entry means for manually entering data prior to irrigation related to the overall amount of water needed across all of said zones;

processing means responsive to said data entry means and said water volume entry means for performing the following functions;

(1) accepting said conditions entered prior to irrigation with said data entry means and said overall amount of water entered prior to irrigation with said water volume entry means, (2) determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycel and (b) the total amount of water needed in that zone is applied, and (3) organizing said number of cycles and said length of time for all of said zones to create an application program; and

means responsive to said organizing function of said processing means for generating said control signals for said zones in accordance with the application program.

10. An irrigation system according to claim 9, wherein

said controlling means is also for testing said lines prior to generation of said control signals.

11. Apparatus for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said apparatus comprising:

data entry means for manually entering prior to irrigation data related to conditions in each of said zones;

day entry means for manually entering prior to irrigation the days of the week on which irrigation is to occur;

processing means responsive to said data entry means and said day entry means for performing the following functions;

(1) accepting said conditions entered prior to irrigation with said data entry means and said days entered prior to irrigation with said day entry means, (2) determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water during the selected days so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle, and (b) the total amount of water needed in that zone is applied during the selected days, and (3) organizing said number of cycles and said length of time for all of said zones to create an application program; and

means responsive to said organizing function of said processing means for generating said control signals for said zones in accordance with the application program.

14. Apparatus as in claim 2, 11, 12, or 13 wherein:

said apparatus further comprises water volume entry means for manually entering data related to overall changes in the amount of water needed in all of said zones; and

said processing means is responsive also to said water volume entry means for determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the total amount of water needed in that zone in accordance with said data entry means and said water volume entry means is applied.

12. Apparatus for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said apparatus comprising:

data entry means for manually entering prior to irrigation data related to conditions in each of said zones including the type of said applicator means being used in each of said zones;

processing means responsive to said data entry means for performing the following functions;

(1) accepting said conditions entered prior to irrigation with said data entry means, (2) determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle, given the type of applicator means being employed, and (b) the total amount of water needed in that zone is applied, given the type of applicator means being employed, and (3) organizing said number of cycles and said length of time for all of said zones to create an application program; and

means responsive to said organizing function of said processing means for generating said control signals for said zones in accordance with the application program.

15. Apparatus as in claim 2, 12 or 13 wherein:

said apparatus further comprises day entry means for manually entering data related to the days of the week irrigation is to occur; and

said processing means is also responsive to said day entry means for determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied in the selected days.

17. Apparatus as in claim 2, 12 or 13 further comprising:

water volume entry means for manually entering data related to changes in the amount of water needed across all of said zones; and

day entry means for entering data related to the days on which irrigation is to occur,

said processing means also being responsive to said water volume entry means and said day entry means for determining for each zone the number of cycles and length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied in view of the total water volume selected with said water volume entry means and the days selected by said day entry means.

13. Apparatus for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said apparatus comprising:

data entry means for manually entering prior to irrigation data related to conditions in each of said zones including a general indication of the amount of water needed by vegetation in each of said zones;

processing means responsive to said data entry means for performing the following functions;

(1) accepting said conditions entered prior to irrigation with said data entry means, (2) determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle, and (b) the total amount of water needed in that zone, as determined in accordance with the vegetation needs, is applied, and (3) organizing said number of cycles and said length of time for all of said zones to create an application program; and

means responsive to said organizing function of said processing means for generating said control signals for said zones in accordance with the application program.

16. Apparatus as in claim 2 or 13 wherein:

said data entry means includes means for manually entering data related to the type of applicator means employed in each of said zones; and

said processing means determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle, given the type of applicator means employed, does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied in view of the type of applicator means employed.

18. Apparatus as in claim 2 or 13, wherein:

said apparatus further comprises water volume entry means for manually entering data related to the overall amount of water needed generally in all of said zones;

said data entry means includes means for manually entering data related to the type of said applicator means employed in each of said zones; and

said processing means is also responsive to said water volume entry means for determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied, taking into consideration the type of said applicator means specified and the overall water volume specified.

19. Apparatus as in claim 2 or 13 wherein:

said apparatus further comprises day entry means for manually entering data related to the days on which irrigation is to occur;

said data entry means includes means for specifying the type of said applicator means employed in each of said zones; and

said processing means is also responsive to said day entry means for determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle, as determined in accordance with the entered days and type of applicator means selected, does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied on the selected days in accordance with the type of said applicator means selected.

20. Apparatus as in claim 2 or 13 wherein:

said apparatus further comprises water volume entry means for manually entering data related to the overall amount of water needed to be applied in all of said zones and day entry means for manually entering data related to the days on which irrigation is to occur;

said data entry means includes means for manually entering data related to the type of said applicator means employed in each of said zones; and

said processing menas is also responsive to said water volume entry means and said day entry means for determining for each zone the number of cycles and the length of time in each cycle in accordance with the overall water volume specified by said water volume entry means, the days on which irrigation is to occur as specified by said day entry means and the type of said applicator means employed in each zone.

21. Apparatus for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said apparatus comprising:

water volume entry means for manually entering prior to irrigation data related to the overall amount of water needed to be applied to all of said zones;

day entry means for manually entering prior to irrigation data related to days on which irrigation is to occur;

data entry means for manually entering prior to irrigation data related to conditions in each of said zones including the amount of water needed to be applied for vegetation in each of said zones, the soil water infiltration rate and the type of said applicator means employed in each of said zones;

processing means, responsive to said water volume entry means, said day entry means and said data entry means for performing the following functions;

(1) accepting said data entered prior to irrigation with said water volume entry means, day entry means and data entry means, (2) determining for each zone, in accordance with all of the accepted data, the number of cycles and the length of time in each cycle that said applicator means applies water so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and (b) the total amount of water needed in that zone is applied, and (3) organizing said number of cycles and said length of time for all of said zones to create an application program; and

means responsive to said organizing function of said processing means for generating said control signals for said zones in accordance with the application program.

28. An irrigation system comprising:

a plurality of applicators disposed in a plurality of irrigation zones;

a pump for providing water to said irrigation zones;

valve means for providing water from said pump to said applicators in selected zones; and

control means for determining for each zone the number of cycles and the lengh of time in each cycle that said applicator apply water and for actuating said pump and said valve means in responsive to said determination, said pump being energized a predetermined period of time before any of said valve means is opened to provide water having at least a predetermined pressure to a corresponding one of said zones prior to opening of said valve means.

29. A method for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said method comprising the steps of:

manually entering with an input device prior to irrigation data related to conditions in each of said zones including the amount of water needed to be applied and the soil water infiltration rate;

electronically determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water from said data manually entered prior to irrigation so that (a) the amount of water the soil can absorb during that cycle and (b) the total amount of water needed in that zone is applied;

electronically organizing the number of cycles and said length of time for all of said zones to create an application program; and

generating said control signals for said zones in accordance with the application program.

50. A method as in claims 29, 30, 37, 39, 40, 41 or 49, wherein:

said irrigation system includes a pump for providing water to said zones and valve means, responsive to said control signals, for selectively permitting water from said pump to reach said applicator means in each zone; and

said control signal generating step includes the step of energizing said pump a predetermined period of time before any of said valve means are actuated to provide water having at least a predetermined pressure to a corresponding one of said zones prior to opening of said valve means.

51. A method as in claim 29, 30, 37, 39, 40, 41, or 49, wherein:

lines conduct said control signals to said providing means in each of said zones; and

said method further comprises the step of testing at least said lines for zones to which water is to be provided prior to generating said control signals.

52. A method as in claim 29, 30, 37, 39, 40, 41 or 49, wherein said determining and organizing steps are repeatedly performed at predetermined time intervals.

53. A method as in claim 29, 30, 37, 39, 40, 41 or 49, wherein said organizing step orders said cycles to occur sequentially, one cycle for each of said zones in which watering is to occur, before the next cycle is selected for any of said zones.

54. A method as in claim 29, 30, 37, 39, 40, 41, or 49, wherein:

said method further comprises the step of manually entering a time at which said application program is to begin; and

said generating step generates said control signals in response to coincidence between said start time and the present time of day.

55. A method as in claim 29, 30, 37, 39, 40, 41 or 49, wherein:

said method further comprises the step of generating a manual operation signal; and

said generating step initiates said control signals in response to said manual operation signal.

30. A method for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said method comprising the steps of:

manually entering with an input device prior to irrigation data related to conditions in each of said zones including the soil water infiltration rate;

electronically determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water from said data manually entered prior to irrigation so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and (b) the total amount of water needed in that zone is applied;

electronically organizing said number of cycles and said length of time for all of said zones to create an application program; and

generating said control signals for said zones in accordance with the application program.

31. A method as in claim 30 wherein:

said method further comprises the step of manually entering data related to the overall amount of water needed in all of said zones;

said conditions entering step enters data related to the general amount of water needed by vegetation in each of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle, taking into consideration said entered data, and the total amount of water needed in that zone is applied in accordance with said entered data.

32. A method as in claim 30 wherein:

said method further comprises the step of manually entering data related to the days on which irrigation is to occur;

said conditions entering step enters data related to the amount of water needed by vegetation in each of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle on the days specified in accordance with the specified amount of water needed for vegetation does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied over the days selected in accordance with the selected amount of water needed for vegetation in each zone.

33. Apparatus as in claim 30 wherein:

said entering step enters data related to the type of said applicator means employed in each zone and the amount of water needed by vegetation in each zone; and

said determining step determines the number of cycles and the length of time in each cycle for each of said zones in accordance with the type of said applicator means specified and the specified amount of water needed by vegetation in each of said zones.

34. A method as in claim 30 wherein:

said method further comprises the steps of manually entering data related to the overall amount of water needed to be applied to all of said zones and manually entering data related to the days on which irrigation is to occur;

said conditions entering step enters data related to the amount of water needed by vegetation in each of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle in accordance with the overall water volume specified, the days on which irrigation is to occur and the specified amount of water needed for vegetation in each of said zones.

35. A method as in claim 30 wherein:

said method further comprises the step of manually entering data related to the overall amount of water needed to be applied to all of said zones;

said conditions entering step enters data related to the type of said applicator means imployed in each of said zones and the amount of water needed to be applied to vegetation in each of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle in accordance with the overall water volume specified, the type of said applicator means specified and the water needs of vegetation in each zone specified.

36. A method as in claim 30 wherein:

said method further comprises the step of manually entering data related to the days on which irrigation is to occur;

said conditions entering step enters data related to the type of said applicator means employed in each zone and the amount of water needed to be applied for vegetation in each zone; and

said determining step determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water in accordance with the specified days on which irrigation is to occur, the specified type of said applicator means employed in each zone and the specified amount of water needed for vegetation in each zone.

42. A method as in claim 30, 39, 40 or 41 wherein:

said method further comprises the step of manually entering data related to overall changes in the amount of water needed in all of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the total amount of water needed in that zone in accordance with said entered data is applied.

43. A method as in claim 30, 40 or 41 wherein:

said method further comprises the step of manually entering data related to the days of the week irrigation is to occur; and

said determining step determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied in the selected days.

44. A method as in claim 30 or 41 wherein:

said entering step enters data related to the type of applicator means employed in each of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle, given the type of applicator means employed, does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied in view of the type of applicator means employed.

45. A method as in claim 30, 40 or 41 further comprising the steps of:

manually entering data related to changes in the amount of water needed across all of said zones; and

entering data related to the days on which irrigation is to occur,

said determining step also determining for each zone the number of cycles and length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied in view of the total water volume selected.

46. A method as in claim 30 or 41, wherein:

said method further comprises the step of manually entering data realted to the overall amount of water needed generally in all of said zones;

said conditions entering step also enters data related to the type of said applicator means employed in each of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied, taking into consideration the type of said applicator means specified and the overall water volume specified.

47. A method as in claim 30 or 41 wherein:

said method further comprises the step of manually entering data related to the days on which irrigation is to occur;

said conditions entering step specifies the type of said applicator means employed in each of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle that said applicator means applies water so that the amount of water applied during each cycle, as determined in accordance with the entered days and type of applicator means selected, does not exceed the amount of water the soil can absorb during that cycle and the total amount of water needed in that zone is applied on the selected days in accordance with the type of said applicator means selected.

48. A method as in claim 30 or 41 wherein:

said method further comprises the steps of manually entering data related to the overall amount of water needed to be applied in all of said zones and manually entering data related to the days on which irrigation is to occur;

said conditions entering step enters data related to the type of said applicator means employed in each of said zones; and

said determining step determines for each zone the number of cycles and the length of time in each cycle in accordance with the overall water volume specified, the days on which irrigation is to occur and the type of said applicator means employed in each zone.

37. A method for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said method comprising the steps of:

manually entering with an input device prior to irrigation data related to conditions in each of said zones;

manually entering with an input device prior to irrigation data related to the overall amount of water needed across all of said zones;

electronically determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water from said data manually entered prior to irrigation so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and (b) the total amount of water needed in that zone is applied;

electronically organizing said number of cycles and said length of time for all of said zones to create an application program; and

generating said control signals for said zones in accordance with the application program.

38. A method as in claim 37 further comprising the step of

testing said lines prior to generation of said control signals.

39. A method for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said method comprising the steps of:

manually entering with an input device prior to irrigation data related to conditions in each of said zones;

manually entering with an input device prior to irrigation the days of the week on which irrigation is to occur;

electronically determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water during the selected days from said data manually entered prior to irrigation so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle, and (b) the total amount of water needed in that zone is applied during the selected days;

electronically organizing said number of cycles and said length of time for all of said zones to create an application program; and

generating said control signals for said zones in accordance with the application program.

40. A method for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said method comprising the steps of:

manually entering with an input device prior to irrigation data related to conditions in each of said zones including the type of said applicator means being used in each of said zones;

electronically determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water from said data manually entered prior to irrigation so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle, given the type of applicator means being employed, and (b) the total amount of water needed in that zone is applied, given the type of applicator means being employed;

electronically organizing said number of cycles and said length of time for all of said zones to create an application program; and

generating said control signals for said zones in accordance with the application program.

41. A method for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said method comprising the steps of:

manually entering with an input device prior to irrigation data related to conditions in each of said zones including a general indication of the amount of water needed by vegetation in each of said zones;

electronically determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water from said data manually entered prior to irrigation so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that sycle, and (b) the total amount of water needed in that zone, as determined in accordance with the vegetation needs, is applied;

electronically organizing said number of cycles and said length of time for all of said zones to create an application program; and

generating said control signals for said zones in accordance with the application program.

49. A method for controlling an irrigation system having a plurality of irrigation zones each having applicator means and means for selectively providing water to said applicator means in response to a control signal, said method comprising the steps of:

manually entering with an input device prior to irrigation data related to the overall amount of water needed to be applied to all of said zones;

manually entering with an input device prior to irrigation data related to days on which irrigation is to occur;

manually entering with an input device prior to irrigation data related to conditions in each of said zones including the amount of water needed to be applied for vegetation in each of said zones, the soil water infiltration rate and the type of said applicator means employed in each of said zones;

electronically determining for each zone, in accordance with all of the accepted data, the number of cycles and the length of time in each cycle that said applicator means applies water from said data manually entered prior to irrigation so that (a) the amount of water applied during each cycle does not exceed the amount of water the soil can absorb during that cycle and (b) the total amount of water needed in that zone is applied;

electronically organizing said number of cycles and said length of time for all of said zones to create an application program; and

generating said control signals for said zones in accordance with the application program.

56. A method of operating an irrigation system having a plurality of applicator means disposed in a plurality of irrigation zones, a pump for providing water to said irrigation zones, and valve means for providing water from said pump to selected zones, said method comprising the steps of:

determining for each zone the number of cycles and the length of time in each cycle that said applicator means applies water; and

actuating said pump and said valve means in response to said determination, said pump being energized a predetermined period of time before any of said valve means is opened to provide water having at least a predetermined pressure to a corresponding one of said zones prior to opening of said valve means.