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

• US 5,307,903 A
• Filed: 01/26/1989
• Issued: 05/03/1994
• 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, Kuzunuki, Soshiro, Tobita, Toshimitsu, Hirasawa, Kotaro, Toda, Yuji, Ueshima, Takaaki
• Primary Examiner(s): Paschall, Mark H.
• Application Number:
  US07/301,973
• Time in Patent Office: 1,923 Days
• Field of Search: 187/122, 187/124, 187/125, 187/128
• 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 for group supervisory control of a plurality of elevators serving a plurality of floors, comprising:

means for inputting from a user of said elevators a control target value desired by said user for each of at least two control target to be statistically attained as a result of executing group supervisory control of said elevators;

means for deciding which of a plurality of predetermined control methods is suited for attainment of said control targets based on information concerning said control targets; and

means for executing said group supervisory control according to said decided control method.

2. An elevator control system according to claim 1, further comprising means for setting one of a weight and a priority rank for each of said control target values.

3. An elevator control system according to claim 1, wherein said inputting means includes means for visually expressing one of control targets and a form representing the control targets, and means for changing said control targets or said form to determine weights or priority ranks for individual control targets.

4. An elevator control system according to claim 2, wherein said control method deciding means decides the control method on the basis of values of said control target values and weighting or priority ranking between control targets.

5. An elevator control system according to claim 1, further comprising:

registration means for registering said plurality of control methods and permitting selection f a control method and in accordance with an elevator running condition or time zone, contents of said control methods registered in said registration means being increased, changed or decreased in response to an external signal.

6. An elevator control system according to claim 5, wherein said at least one of control methods comprises at least cell assignment control method and a parameter of an evaluation function for evaluating each cage.

7. An elevator group supervisory control system according to claim 1 wherein said control targets include at least two of waiting time at a hall, riding time, degree of jam in cage, reservation change rate, transport capability, passenger number, rate of occurrence of longtime waiting, reservation information time, rate of first arrival unresponsive to cage call, frequency of nonstop of cage, frequency of nonstop of full-up cage, information guide amount, noise level, energy saving, frequency of start of elevator and scheduled running.

8. An elevator control system according to claim 3, wherein said form includes graphically depicted mass, relative weight, volume, area or length.

9. An elevator control system for group supervisory control of a plurality of elevators serving a plurality of floors, comprising:

means for inputting from a user of said elevators a control target value desired by said user for each of at least two control targets to be statistically attained as a result of executing group supervisory control of said elevators;

means for deciding which of a plurality of control methods is suited for attainment of said control targets; and

means for executing said group supervisory control according to said decided control method;

wherein said control method deciding means comprises means for selecting one or more candidate control methods expected to attain said control target values, means for determining predictive values of said control targets pursuant to the selected one or more control methods, and means for selecting one control method from said one or more control methods on the basis of the predictive values.

10. An elevator control system according to claim 9, wherein said means for determining predictive values comprises simulator means for performing simulation in accordance with the selected candidate control methods to determine predictive values.

11. An elevator control system according to claim 9, further comprising means for displaying said predictive values in correspondence to said inputted control target values.

12. An elevator group supervisory control system according to claim 9, further comprising:

means for displaying said predictive values expected to attain said control target values.

13. An elevator group supervisory control system according to claim 12, further comprising means for deciding said control method on the basis of the displayed predictive values.

14. An elevator group supervisory control system according to claim 12, wherein said predictive values include at least two of waiting time at the hall, riding time, degree of jam in cage, reservation change rate, transport capability, passenger number, rate of occurrence of longtime waiting, reservation informing time, rate of first arrival unresponsive to cage call, frequency of nonstop of cage, frequency of nonstop of full-up cage, information guide amount, noise level, energy saving, frequency of start of elevator and scheduled running.

15. A control apparatus according to claim 12, further includes means for deciding a plurality for achieving for each request item in accordance with an order of inputting said target levels.

16. An elevator group management control system for group supervisory control of a plurality of elevators serving a plurality of floors, comprising:

means for inputting from a user of said elevators a control target value desired by said user for each of at least two control targets to be statistically attained as a result of executing group supervisory control of said elevators;

means for deciding which of a plurality of control methods is suited for attainment of said control targets;

means for executing said group supervisory control according to said decided control method;

means for inputting a target value of at least one of priority ranking and weighting in respect of said control targets;

knowledge means for precedently storing knowledge regarding relation between traffic or environment and individual control targets with respect to a plurality of control methods;

means responsive to a signal from said input means for referencing said knowledge means to reduce candidate control method expected to attain individual control targets so as to select one or more candidate control methods;

means for determining predictive values of the individual control targets pursuant to the selected one or more candidate control method candidate through simulation; and

means for determining one control method on the basis of the determined predictive values.

17. An elevator group supervisory control system according to claim 16, wherein said control targets include at least two of waiting time at the hall, riding time, degree of jam in cage, reservation change rate, transport capability, passenger number, rate of occurrence of longtime waiting, reservation information time, rate of first arrival unresponsive to cage call, frequency of nonstop of cage, frequency of nonstop of full-up cage, information guide amount, noise level, energy saving, frequency of start of elevator and scheduled running.

18. An elevator group supervisory control system for group supervisory control of a plurality of elevators serving a plurality of floors, comprising:

means for inputting from a user of said elevators a control target value desired by said user for each of at least two control targets to be statistically attained as a result of executing group supervisory control of said elevators;

means for deciding which of a plurality of control methods is suited for attainment of said control targets; and

means for executing said group supervisory control according to said decided control method;

means for inputting a target value of at least one of priority ranking and weighting in respect of a plurality of elevator control targets;

knowledge means for storing relation between traffic or environment and individual control targets with respect to a plurality of control methods; and

means responsive to a signal from said input means for referencing said knowledge means to determine a Pareto optional solution through multiobjective programming or goal programming so as to settle a control method suited for attainment of said control target values.

19. An elevator group supervisory control system according to claim 18, wherein said control targets include at least two of waiting time at the hall, riding time, degree of jam in cage, reservation change rate, transport capability, passenger number, rate of occurrence of longtime waiting, reservation information time, rate of first arrival unresponsive to cage call, frequency of nonstop of cage, frequency of nonstop of full-up cage, information guide amount, noise level, energy saving, frequency of start of elevator and scheduled running.

20. A control apparatus for elevators for allowing inputting of target levels of a plurality of request time defining running characteristics of the elevators in order to run the elevator according to one of a plurality of predetermined control methods which meets a running performance desired by users of said elevators, comprising:

means for indicating target levels within a predetermined range for each request item in a manner selectable by a user;

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

means for controlling said elevators according to one of the predetermined control methods which meets the running performance desired as indicated by the selected target level.

21. A control apparatus according to claim 20, wherein said request items and said target levels are presented in a guidance manner.

22. A control apparatus according to claim 20, wherein said request items and said target levels are presented in a form of a radar chart.

23. A control apparatus according to claim 20, wherein said request items and said target levels are presented in a form of a bar graph.

24. A control apparatus according to claim 20, wherein said request items and said target levels are presented in a form of a table.

25. A control apparatus according to claim 20, wherein said table further includes a column for allowing said user to input therein a rank for achieving the target level for each request item.

26. A control apparatus according to claim 20, further comprising units for converting the inputted target levels into a plurality of control targets.

27. A control apparatus according to claim 26, further comprising means for deducing and determining a control method suited for attainment of individual control target values.

28. A control apparatus according to claim 20, further comprising means for executing group supervisory control for the elevators in accordance with said inputted target levels.

29. A control apparatus according to claim 20, wherein said target levels include normalized values representative of qualitative request time concerning running of elevators.

30. A control apparatus according to claim 20, wherein said request items are indicated by a format in which the degree of relative strength between at least three request items is described.

31. A control apparatus according to claim 20, wherein said target levels include a plurality of grades for running performance of elevators between minimum and maximum values.

32. A control apparatus according to claim 20, further comprises means for inputting utilization environment surrounding said elevators.

33. A control apparatus according to claim 32, further comprises means for converting said inputted target levels into a plurality of control targets for elevators, group supervisory control of the elevators being executed using individual control targets.

34. A control apparatus according to claim 33, further comprising means for setting a weight or priority rank for individual control targets.

35. A control apparatus according to claim 34, wherein said weight or priority rank is determined through analytical hierarchy process.

36. A control apparatus according to claim 33, further comprising means for determining a control method suited for attainment of said control targets, said group supervisory control being executed on the basis of the thus determined control method.

37. A control apparatus 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.

38. A control apparatus according to claim 20, wherein said request items include qualitative desires concerning elevator running which originate from sense of value, interest, task, sense or preference of said user or a caretaker of a building in which said elevators are installed.

39. A control apparatus for elevators for allowing inputting of target levels of a plurality of request items defining running characteristics of the elevators in order to run the elevators in a manner which meets a running performance desired by users of said elevators, comprising:

means for indicating target levels within a predetermined range for each request item in a manner selectable by a user;

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

means for converting the inputted target levels into a plurality of control targets;

means for deducing and determining a control method suited for attainment of individual control target values; and

means for registering the determined control method in a controller adapted to perform group supervisory control for elevators.

40. A control apparatus according to claim 39, further comprising means for sensing said control method to control units of elevators.

41. A control apparatus

for elevators for allowing inputting of target levels of a plurality of request items defining running characteristics of the elevators in order to run the elevators in a manner which meets a running performance desired by users of said elevators, comprising:

means for indicating target levels within a predetermined range for each request item in a manner selectable by a user;

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

means for converting the inputted target levels into a plurality of control targets;

wherein said converting means comprises a preset request item input knowledge base and an environment/traffic data base, said knowledge base and data base being used for determining control target values through deduction and for determining weighting or priority ranking between control target items.

42. A control apparatus for elevators for allowing inputting of target levels of a plurality of request items defining running characteristics of the elevators in order to run the elevators in a manner which meets a running performance desired by users of said elevators comprising:

means for indicating target levels within a predetermined range for each request item in a manner selectable by a user;

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

means for converting the inputted target levels into a plurality of control targets;

means for deducing and determining a control method suited for attainment of individual control target values;

wherein said deducing/determining means uses an environment/traffic data base and a control method deciding knowledge base on the basis of said control target values and weighting or priority ranking between control target items so as to determine a control method.

43. A control apparatus according to claim 42, further comprising knowledge acquiring means for detecting, on the basis of actual measurement data obtained from actual running of elevator, that there occurs new data which is not coincident with data stored in said environment/traffic data base and control method deciding knowledge base, and additionally registering the new data in said environment/traffic data base and control method deciding knowledge base.

44. A control apparatus according to claim 42, further comprising a simulator, wherein when two or more control methods expected to attain said control target values are selected, said simulator performs simulation and on the basis of simulation results, a control method best suited for attainment of said control targets is determined to be an optimum control method.

45. A control apparatus according to claim 43, wherein when said control target values can not be attained under said actual measurement data, said deducing/determining means operates to again select a control method by using said actual measurement data representative of environment/traffic, and a simulation is effected pursuant to the thus selected control method to determine predictive values, and simulation results are presented to said user and if approved by said user, registered in the elevator controller.

46. A control apparatus for elevators for allowing inputting of target levels of a plurality of request items defining running characteristics of the elevators in order to run the elevators in a manner which meets a running performance desired by users of said elevators, comprising:

means for indicating target levels within a predetermined range for each request item in a manner selectable by a user;

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

means for inputting utilization environment surrounding said elevators; and

means for converting said inputted target levels into a plurality of control targets for elevators, group supervisory control of the elevators being executed using individual control targets;

wherein said control target converting means has a knowledge base and uses rules stored in the knowledge base to convert said target levels into said control targets.

47. A control apparatus according to claim 46, wherein said knowledge base includes conversion functions prepared pursuant to the types of elevator utilization environment in respect of at least one of said target levels, and said target levels are converted into elevator control target values by using respective conversion functions.

48. A control apparatus according to claim 46, wherein said knowledge base includes a correlation table indicative of correlation between each target level and said control targets, and said control target values are determined from said correlation table.

49. A control apparatus according to claim 48, wherein said knowledge base corrects said correlation in accordance with the type of a building at which the elevator are installed.

50. A control apparatus for elevators for allowing inputting of target levels of a plurality of request items defining running characteristics of the elevators in order to run the elevators in a manner which meets a running performance desired by users of said elevators, comprising:

means for indicating target levels within a predetermined range for each request item in a manner selectable by a user;

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

means for inputting utilization environment surrounding said elevators; and

means for converting said inputted target levels into a plurality of control targets for elevators, group supervisory control of the elevators being executed using individual control targets;

wherein said control execution means comprises means for collecting results of actual execution of elevator control, and said target conversion means includes means for inversely converting the control results into target levels, whereby the target levels resulting from inverse-conversion are informed to said indication means.

51. A control apparatus for elevators for allowing inputting of target levels of a plurality of request items defining running characteristics of the elevators in order to run the elevators according to one of a plurality of predetermined control methods which meets a running performance desired by users of said elevators, comprising:

means for indicating said request items to a user;

means for allowing said user to input relative target levels among said request items; and

means for controlling said elevators according to one of the predetermined control methods which meets the running performance desired as indicated by the relative target levels.

52. A control apparatus according to claim 51, wherein said request items are presented in a form such that at least one combination of two of said plurality of request items is shown together with relative weights between said two request items, and said means for allowing includes means for permitting said user to input one of said relative weights.

53. A control apparatus according to claim 51, further comprising means for deciding a priority for each request item in accordance with an order (or sequence) of setting said request items.

54. A control apparatus according to claim 51, further comprising means for deciding a priority for each request item in accordance with an order (or sequence) of inputting said relative target levels.

55. A control apparatus for elevators for allowing inputting of target levels of a plurality of request items defining running characteristics of the elevators in order to run the elevators in a manner which meets a running performance desired by users of said elevators, comprising:

means for indicating said request items to a user; and

means for allowing said user to input relative target levels among said request items;

wherein said request items are presented in a form that at least combination of two request items of said plurality of request items is shown and each of said relative target level is a ratio of weights of said two request items.

56. 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;

means for 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 predetermined group supervisory control methods in accordance with said evaluation formula and/or parameters.

57. An elevator control method according to claim 56, further comprising the steps of converting said inputted target levels into a plurality of quantitative control targets by using a knowledge base.

58. An elevator control method according to claim 57, 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.

59. An elevator control method according to claim 57, 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.

60. An elevator control method according to claim 57, wherein said target levels are inputted by answering a question regarding a plurality of predetermined request items in guidance fashion.

61. An elevator control method according to claim 57, 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.

62. 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;

means for 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

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.

63. 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;

means for 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;

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.

64. An elevator control method according to claim 63, wherein said knowledge base corrects said correlation in accordance with the type of a building at which said elevators are installed.

65. 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;

means for 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; and

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.

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

indicating a plurality of request items defining running characteristics of the elevators in a manner selectable by a user of said elevators;

in response to operation by said user, inputting relative target levels among said request items;

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

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

67. An elevator control apparatus for group supervisory control of a plurality of elevators serving a plurality of floors, comprising:

user selectable control targets of said elevators, including rates of jam in cages of said elevators; and

means for executing group supervisory control on the basis of a selected control target.

68. An elevator control apparatus according to claim 67, wherein said control targets further include waiting times.

69. An elevator control apparatus according to claim 68, wherein said control targets further include riding times.

70. An elevator control apparatus according to claim 67, wherein said control targets further include riding times.