Schedule adjustment method, method and apparatus for schedule management, capable of automatically adjusting schedule

• US 20020124000A1
• Filed: 09/10/2001
• Published: 09/05/2002
• Est. Priority Date: 03/02/2001
• Status: Abandoned Application

• Current Assignee: Renesas Technology Corporation (Renesas Electronics Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Ooishi, Tsukasa
• Application Number:
  US09/948,566
• Publication Number:
  US 20020124000A1
• Time in Patent Office: Days
• US Class Current: 707/10
• CPC Class Codes: G06F 16/27 Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
• CPC Class Codes: G06F 16/275 Synchronous replication
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

A comparison loop counter compares a schedule whose adjustment is requested from a user with a schedule as an object for adjustment stored in a data base. When the schedule whose adjustment is requested does not coincide with an unassigned time zone of the schedule as an object for adjustment, position shift circuit change the schedule whose adjustment is requested in a range of a flexibility time zone set to the schedule and the comparison loop counter adjusts such that the schedule whose adjustment is requested coincides with an unassigned time zone of the schedule as an object for adjustment. As a result, when a request for schedule registration from a user occurs, the schedule can be automatically adjusted taking into consideration schedules of other users.

Claims

1. A schedule adjustment method adjusting plural schedules, in each of which a registration time zone and a first flexibility time zone showing a range in which said registration time zone can be changed are set, comprising:

a first step of extracting plural schedules each as an object for adjustment from said plural schedules in response to a request for schedule adjustment;

a second step of receiving a schedule whose adjustment is requested and which is composed of a desired time zone and a second flexibility time zone showing a range in which said desired time zone can be changed;

a third step of comparing said schedule whose adjustment is requested with said plural schedules each as an object for adjustment to adjust such that said schedule whose adjustment is requested coincides with plural schedule setting enabling time zones of said plural schedules each as an object for adjustment;

a fourth step of updating said plural schedules each as an object for adjustment when said schedule whose adjustment is requested coincides with said plural schedule setting enabling time zones; and

a fifth step of originating a result of the adjustment in said third step,

wherein said schedule setting enabling time zone is a time zone obtained by summing an unassigned time zone and said first flexibility time zone.

2. The schedule adjustment method according to claim 1, wherein in said third step, said schedule whose adjustment is requested is adjusted so as to coincide with said plural unassigned time zones by changing said desired time zone in a range of said second flexibility time zone when said desired time zone does not coincide with said plural unassigned time zones.

3. The schedule adjustment method according to claim 2, wherein in said third step, said schedule whose adjustment is requested is adjusted so as to coincide with said plural unassigned time zones by further changing said plural unassigned time zones in ranges of said respective corresponding first flexibility time zones when said schedule whose adjustment is requested does not coincide with said plural unassigned time zones even if said desired time zone is changed in a range of said second flexibility time zone.

4. The schedule adjustment method according to claim 3, wherein in said third step, a common time zone in which a schedule in common with said the plural schedules each as an object for adjustment can be set is further detected when said schedule whose adjustment is requested does not coincide with said plural unassigned time zones even if said plural unassigned time zones are changed in ranges of said respective corresponding first flexibility time zones.

5. A schedule management method managing plural schedules in each of which a registration time zone and a flexibility time zone showing a range in which said registration time zone can be changed are set, comprising:

a first step of extracting plural schedules each as an object for management having the same schedule from said plural schedules in response to a request for schedule management;

a second step of detecting a residual time till a next scheduled time point from a current time point on the basis of said plural schedules each as an object for management;

and a third step of transmitting a residual time detected in said second step to a client.

6. The schedule management method according to claim 5, further comprising a fourth step of originating a notification signal to urge a client to move to a destination at said next scheduled time point when said residual time is compared with a prescribed value and said residual time coincides with said prescribed value.

7. The schedule management method according to claim 5, wherein in said fourth step, a travel time of a client, who has transmitted said request for schedule management, from a current position to a destination included in said plural schedules each as an object for management is further detected to originate said notification signal on the basis of a difference in time obtained by subtracting said travel time from said residual time.

8. The schedule management method according to claim 6, further comprising a fifth step of changing a next scheduled time point included in said plural schedules each as an object for management in a range of said flexibility time zone in response to a request for schedule change to detect said residual time on the basis of a next scheduled time point changed.

9. A schedule management method managing plural schedules in each of which a registration time zone and a first flexibility time zone showing a range in which said registration time zone can be changed are set, comprising:

a first step of extracting plural schedules each as an object for management from said plural schedules in response to a request for schedule management;

a second step of receiving a schedule whose adjustment is requested and which is composed of a desired time zone and a second flexibility time zone showing a range in which said desired time zone can be changed;

a third step of comparing said schedule whose adjustment is requested with said plural schedules each as an object for adjustment to adjust such that said schedule whose adjustment is requested coincide with plural schedule setting enabling time zones of said plural schedules each as an object for adjustment;

a fourth step of updating said plural schedules each as an object for adjustment when said schedule whose adjustment is requested coincides with said plural schedule setting enabling time zones; and

a fifth step of originating a result of adjustment in said third step,

wherein said schedule setting enabling time zone is a time zone obtained by summing of an unassigned time zone and said first flexibility time zone, and

in said third step, when said first flexibility time zone exceeds a limited time in said adjusted plural schedules each as an object for adjustment, a schedule as an object for adjustment to which said first flexible time zone exceeding is set is removed.

10. The schedule management method according to claim 9, wherein said plural schedules are schedules for use in managing a production process of a production line.

11. The schedule management method according to claim 9, wherein said plural schedules are schedules for use in managing production processes of production lines with respective different production capabilities.

13. The schedule management apparatus according to claim 12, wherein said schedule adjustment circuit adjusts such that said schedule whose adjustment is requested coincides with a plurality of said unassigned time zones by changing said desired time zone in a range of said second flexibility time zone when said desired time zone does not coincide with plural unassigned time zones.

14. The schedule management apparatus according to claim 13, wherein said schedule adjustment circuit adjusts such that said schedule whose adjustment is requested coincides with said plural unassigned time zones by further changing each of said plural unassigned time zones in a range of said corresponding first flexibility time zone when said schedule whose adjustment is requested does not coincides with said plural unassigned time zones even if said desired time zone is changed in a range of said second flexibility time zone.

15. The schedule management apparatus according to claim 14, wherein said schedule adjustment circuit outputs a common time zone in which a schedule in common with said plural schedules each as an object for adjustment can be set when said schedule whose adjustment is requested does not coincides with said plural unassigned time zones even if said plural unassigned time zones are changed in ranges of said respective corresponding first flexibility time zones and said origination circuit originates said common time zone.

12. A schedule management apparatus comprising:

a schedule storage circuit storing plural schedules in each of which a registration time zone and a first flexibility time zone showing a range in which said registration time zone can be changed are set;

a reception circuit receiving a schedule whose adjustment is requested and which is composed of a desired time zone and a second flexibility time zone showing a range in which said desired time zone can be changed;

a schedule read circuit reading plural schedules each as an object for adjustment from said schedule storage circuit in response to a request for schedule adjustment received by said reception circuit;

a schedule adjustment circuit comparing said schedule whose adjustment is requested with said plural schedules each as an object for adjustment to adjust such that said schedule whose adjustment is requested coincides with plural schedule setting enabling time zones of said plural schedules each as an object for adjustment;

a schedule updating circuit updating each of said plural schedules each as an object for adjustment on the basis of said schedule whose adjustment is requested when said schedule whose adjustment is requested coincides with said plural schedule setting enabling time zones;

a schedule rewrite circuit rewriting corresponding plural schedules stored in said schedule storage circuit with plural updated schedules updated by said schedule updating circuit; and

an origination circuit originating a result of adjustment effected by said schedule adjustment circuit,

wherein said schedule setting enabling time zone is a time zone obtained by summing an unassigned time zone and said first flexibility time zone.