Method and system of controlling elevators and method and apparatus of inputting requests to the control system

• US 5,892,190 A
• Filed: 10/12/1993
• Issued: 04/06/1999
• Est. Priority Date: 01/29/1988
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Yoneda, Kenji, Sakai, Yoshio, Morita, Yuzo, Nakamura, Kiyoshi, Inaba, Hiromi, Fujino, Atsuya, Tobita, Toshimitsu, Hirasawa, Kotaro, Toda, Yuji, Ueshima, Takaaki, Kuzunuki, Soshiro
• Primary Examiner(s): Nappi, Robert E.
• Application Number:
  US08/134,803
• Time in Patent Office: 2,002 Days
• Field of Search: 187/121, 187/124, 187/125, 187/128, 187/101, 187/133, 187/247, 187/330, 187/382, 187/383, 187/384, 187/387, 187/391, 187/393, 187/381, 395/901, 395/918
• US Class Current: 187/382
• CPC Class Codes: B66B 1/18 with means for storing pulses controlling the movements of several cars or cages B66B1/2458 takes precedence
• CPC Class Codes: B66B 1/2458 For elevator systems with multiple shafts and a single car per shaft
• CPC Class Codes: B66B 2201/102 Up or down call input
• CPC Class Codes: B66B 2201/211 Waiting time, i.e. response time
• CPC Class Codes: B66B 2201/212 Travel time
• CPC Class Codes: B66B 2201/213 where the number of stops is limited
• CPC Class Codes: B66B 2201/215 Transportation capacity
• CPC Class Codes: B66B 2201/216 Energy consumption
• CPC Class Codes: B66B 2201/222 Taking into account the number of passengers present in the elevator car to be allocated
• CPC Class Codes: B66B 2201/401 by time of the day
• CPC Class Codes: B66B 2201/402 by historical, statistical or predicted traffic data, e.g. by learning
• CPC Class Codes: B66B 2201/403 by real-time traffic data

Abstract

Elevator group supervisory control method and system for group supervisory control of a plurality of elevators serving a plurality of floors. The method and apparatus of the invention permits the inputting of qualitative requests (guidance), from the user, concerning elevator operation into the group supervisory control system. Qualitative requests concerning elevator operation are set in the form of guidance (or request) targets. The thus set request targets are converted into control targets for the elevators. Actual group supervisory control is executed using the control targets.

Claims

1. An elevator control system having a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators has a predetermined maximum passenger load for its respective cage, said control apparatus comprising:

means for detecting the passenger load of each of said cages of said elevators as a proportion of the corresponding maximum passenger load;

means for determining control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired passenger loads of said cages of said elevators, said desired passenger loads being a proportion less than unity of the corresponding maximum passenger load;

means for determining a control strategy on the basis of the inputted information concerning said control targets; and

means for executing group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected passenger loads of the elevators can approach the corresponding desired passenger loads.

2. An elevator control apparatus according to claim 1, wherein said control targets further include waiting times.

3. An elevator control apparatus according to claims 1 or 2, wherein said control targets further include riding times.

4. A method of controlling an elevator system comprising a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators has a predetermined maximum passenger load for its respective cage, said method comprising the steps of:

detecting the passenger load of each of said cages of said elevators as a proportion of the corresponding maximum passenger load;

determining control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired passenger loads of said cages of said elevators, said desired passenger loads being a proportion less than unity of the corresponding maximum passenger load;

determining a control strategy on the basis of the inputted information concerning said control targets; and

executing group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected passenger loads of the elevators can approach the corresponding desired passenger loads.

5. An elevator control system having a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators provides service to a passenger on one of the floors, said control apparatus comprising:

means for calculating for each of said cages of said elevators a waiting time within which said cage provides service to a passenger on one of the floors;

means for determining control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired waiting times for said cages of said elevators;

means for determining a control strategy on the basis of the inputted information concerning said control targets; and

means for executing group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected wait times of the elevators can approach the corresponding desired waiting times.

6. An elevator control system according to claim 5, wherein said control targets further include passenger loads.

7. An elevator control system according to claims 5 or 6, wherein said control targets further include riding times.

8. A method of controlling an elevator system comprising a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators provides service to a passenger on one of the floors said method comprising the steps of:

calculating for each of said cages of said elevators a waiting time within which said cage provides service to a passenger on one of the floors;

determining control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired waiting times of said cages of said elevators;

determining an control strategy on the basis of the inputted information concerning said control targets; and

executing group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected waiting time of the elevators can approach the corresponding desired waiting times.

9. An elevator control system having a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators caries passengers from one of said floors to another of said floors, said control apparatus comprising:

means for detecting for each of said cages of said elevators a riding time within which passengers are carried from one of the floors to another of the floors;

means for determining control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired riding times for said cages of said elevators;

means for determining a control strategy on the basis of the inputted information concerning said control targets; and

means for executing group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected riding times of the elevators can approach the corresponding desired riding times.

10. An elevator control system according to claim 9, wherein said control targets further include waiting times.

11. An elevator control system according to claims 9 or 10, wherein said control targets further include passenger loads.

12. A method of controlling an elevator system comprising a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators carries passengers from one of said floors to another of said floors, said method comprising the steps of:

detecting for each of said cages of said elevators a riding time within which passengers are carried from one of the floors to another of the floors;

determining control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired riding times of said cages of said elevators;

determining a control strategy on the basis of the inputted information concerning said control targets; and

executing group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected riding times of the elevators can approach the corresponding desired riding times.

13. An elevator control system for controlling a plurality of elevators serving a plurality of floors using a control apparatus for group supervisory control of the elevators, said control apparatus comprising:

means for indicating a predetermined range of values for each of a plurality of control targets defining desired service of the elevators to the floors in a manner to permit selection of a particular value of a control target during operation of the elevators and permitting selection of a value for a control target from said predetermined range of values for said control target; and

means for providing the desired service of the elevators to the floors based on said selected value of said control target, to cause the elevators to operate, taking into account selected values for all of said control targets including waiting time.

14. An elevator control system according to claim 13, wherein said control targets includes the number of passengers in each of the elevators relative to the rated capacity of the elevators and the rate at which reservations for the elevators are made.

15. An elevator control system according to claim 13, wherein said control targets includes transport capability and passenger number.

16. An elevator control system according to claim 13, wherein said control targets includes rate of occurrence of a long waiting time and information indicating a time at which a reservation is made for an elevator.

17. An elevator control system according to claim 13, wherein said control targets includes rate of first arrived elevator responding to cage call and frequency of non-stop of cage.

18. An elevator control system according to claim 13, wherein said control targets includes a rate of occurrence of users selecting information which provides guidance for operating the elevators and noise level.

19. An elevator control system according to claim 13, wherein said control targets includes rate occurrence of energy saving and frequency of start of elevator.

20. An elevator control system according to claim 13, wherein said control targets includes rate occurrence of scheduled running and waiting time.

21. A method of controlling an elevator system which includes a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of said elevators, said method comprising the steps of:

permitting input of control targets of said elevators including a degree of jam in cages of said elevators, said degree of jam represents the number of passengers in each of said cages of said elevators relative to the rated capacity of said elevators, said control targets indicating desired operating conditions of said elevators; and

executing group supervisory control based on a selected control target.

22. A method according to claim 21, wherein said control targets further include waiting times.

23. A method according to claim 22, wherein said control targets further include riding times.

24. A method according to claim 21, wherein said control targets further include riding times.

25. An elevator control method for group supervisory control of a plurality of elevators serving a plurality of floors, comprising the steps of:

indicating target levels within a predetermined range for each of a plurality of request items defining running characteristics of the elevators in a manner selectable by a user of said elevators;

allowing said user to input a target level selected by said user for each request item;

calculating at least a call assignment evaluation formula and/or parameters from said inputted target levels; and

executing one of a predetermined group supervisory control methods in accordance with said evaluation formula and/or parameters.

26. An elevator control method according to claim 25, further comprising the step of:

converting said inputted target levels into a plurality of quantitative control targets by using a knowledge base.

27. An elevator control method according to claim 26, wherein said control targets use as an evaluation item at least one of waiting time, rate of occurrence of longtime waiting, riding time, reservation informing time, reservation hit rate, degree of jam in cage, transport capability, rate of nonstop of cage, information guide amount, energy saving rate, noise suppression rate and degree of jam in hall, whereby said control targets are improved using said evaluation item.

28. An elevator control method according to claim 26, wherein said request items represent qualitative desires concerning elevator running which originate from sense of value, interest, taste, sense or preference of said user or a caretaker of a building in which said elevators are installed.

29. An elevator control method according to claim 26, wherein said target levels are inputted by answering a question regarding a plurality of predetermined request items in guidance fashion.

30. An elevator control method according to claim 26, wherein in said conversion, inputted target levels are converted into a plurality of control targets in accordance with knowledge stored in said knowledge base, weighting or priority ranking between said control targets is performed, and said control targets are determined quantitatively.

31. An elevator control method for group supervisory control of a plurality of elevators serving a plurality of floors, comprising the steps of:

indicating target levels within a predetermined range for each of a plurality of request items defining running characteristics of the elevators in a manner selectable by a user of said elevators;

allowing said user to input a target level selected by said user for each request time;

calculating at least a call assignment evaluation formula in group supervisory control and/or parameters from said inputted target levels; and

executing the group supervisory control in accordance with said evaluation formula and/or parameters;

wherein said input target levels are converted into control targets for elevator, and said evaluation formula and/or parameters are calculated using said control targets.

32. An elevator control method for group supervisory control of a plurality of elevators serving a plurality of floors, comprising the steps of:

indicating target levels within a predetermined range for each of a plurality of request items defining running characteristics of the elevators in a manner selected by said user of said elevators;

allowing said user to input a target level selected by said user for each request item;

calculating at least a call assignment evaluation formula in group supervisory control and/or parameters from said inputted target levels;

executing the group supervisory control in accordance with said evaluation formula and/or parameters; and

converting said inputted target levels into a plurality of quantitative control targets by using a knowledge base;

wherein said knowledge base is constructed of a table showing correlation between target levels and a plurality of control targets which can be determined quantitatively.

33. An elevator control method according to claim 32, wherein said knowledge base corrects said correlation in accordance with the type of a building at which said elevators are installed.

34. An elevator control method for group supervisory control of a plurality of elevators serving a plurality of floors, comprising the steps of:

indicating target levels within a predetermined range for each of a plurality of request items defining running characteristics of the elevators in a manner selectable by a user of said elevators;

allowing said user to input a target level selected by said user for each request item;

calculating at least a call assignment evaluation formula in group supervisory control and/or parameters from said inputted target levels;

executing the group supervisory control in accordance with said evaluation formula and/or parameters;

converting said inputted target levels into a plurality of quantitative control targets by using a knowledge base;

displaying individual request items in the form of a radar chart; and

inputting target levels for said request items by using said radar chart.

35. An elevator control system having a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators has a predetermined maximum passenger load for its respective cage, said control apparatus comprising:

a detector which detects the passenger load of each of said cages of said elevators as a proportion of the corresponding maximum passenger load;

a decision unit which determines control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired passenger loads of said cages of said elevators, said desired passenger loads being a proportion less than unity of the corresponding maximum passenger load, and determines a control strategy on the basis of the inputted information concerning said control targets; and

a control unit which executes group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected passenger loads of the elevators can approach the corresponding desired passenger loads.

36. An elevator control apparatus according to claim 35, wherein said control targets further include waiting times.

37. An elevator control apparatus according to claim 35 or 36, wherein said control targets further include riding times.

38. An elevator control system having a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators provides service to a passenger on one of the floors, said control apparatus comprising:

a decision unit which calculates for each of said cages of said elevators a waiting time within which said cage provides service to a passenger on one of the floors, determines control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired waiting times for said cages of said elevators, and determines a control strategy on the basis of the inputted information concerning said control targets; and

a control unit which executes group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected wait times of the elevators can approach the corresponding desired waiting times.

39. An elevator control system according to claim 38, wherein said control targets further include passenger loads.

40. An elevator control system according to claim 38 or 39, wherein said control targets further include riding times.

41. An elevator control system having a plurality of elevators serving a plurality of floors and a control apparatus for group supervisory control of the elevators, wherein each of the elevators caries passengers from one of said floors to another of said floors, said control apparatus comprising:

a detector which detects for each of said cages of said elevators a riding time within which passengers are carried from one of the floors to another of the floors;

a decision unit which determines control targets of said elevators by permitting input of information concerning said control targets, said control targets indicating desired operating conditions of said elevators and including information indicating respective desired riding times for said cages of said elevators, and determines a control strategy on the basis of the inputted information concerning said control targets; and

a control unit which executes group supervisory control on the basis of the control strategy to cause the elevators to operate so that the detected riding times of the elevators can approach the corresponding desired riding times.

42. An elevator control system according to claim 41, wherein said control targets further include waiting times.

43. An elevator control system according to claim 41 or 42, wherein said control targets further include passenger loads.

44. An elevator control system for controlling a plurality of elevators serving a plurality of floors using a control apparatus for group supervisory control of the elevators, said control apparatus comprising:

a request unit which indicates a predetermined range of values for each of a plurality of control targets defining service of the elevators to the floors in a manner to permit selection of a particular value of a control target during operation of the elevators and wherein permits selection of a value for a control target from said predetermined range of values for said control target; and

a control unit which provides the desired service of the elevators to the floors based on said selected value of said control target, to cause the elevators to operate, taking into account selected values for all of said control targets including waiting time.

45. An elevator control system according to claim 44, wherein said control targets includes the number of passengers in each of the elevators relative to the rated capacity of the elevators and the rate at which reservations for the elevators are made.

46. An elevator control system according to claim 44, wherein said control targets includes transport capability and passenger number.

47. An elevator control system according to claim 44, wherein said control targets includes rate of occurrence of a long waiting time and information indicating a time at which a reservation is made for an elevator.

48. An elevator control system according to claim 44, wherein said control targets includes rate of first arrived responding to cage call and frequency of non-stop of cage.

49. An elevator control system according to claim 44, wherein said control targets includes a rate of occurrence of users selecting information which provides guidance for operating the elevators and noise level.

50. An elevator control system according to claim 44, wherein said control targets includes rate occurrence of energy saving and frequency of start of elevator.

51. An elevator control system according to claim 44, wherein said control targets includes rate occurrence of scheduled running and waiting time.