Audio direction and information for elevator passengers

• US 5,551,533 A
• Filed: 04/01/1994
• Issued: 09/03/1996
• Est. Priority Date: 04/01/1994
• Status: Expired due to Fees

• Current Assignee: Otis Elevator Company (Otis Worldwide Corp.)
• Original Assignee: Otis Elevator Company (Otis Worldwide Corp.)
• Inventors: Ng, Bok S.
• Primary Examiner(s): NAPPI, ROBERT E
• Application Number:
  US08/222,135
• Time in Patent Office: 886 Days
• Field of Search: 187/390, 187/361, 187/396, 187/397, 187/398, 187/901, 187/902
• US Class Current: 187/391
• CPC Class Codes: B66B 3/00 Applications of devices for indicating or signalling operating conditions of elevators
• CPC Class Codes: B66B 3/006 for guiding passengers to their assigned elevator car

Abstract

A speaker system is provided adjacent to the gate of each of a plurality of elevator cars on each floor of a building. The speaker systems announce messages such as the car number of the next car in either direction, the estimated time of arrival of the car, that the car is full, the approximate delay for service by the next car to come, the car number and floor numbers being served by each loading elevator during up peak with channeling, the up calls are prohibited during up peak, the delay for service by the next car, and that all elevators should not be used in the case of fire or other emergency. Speaker systems are put on the doors of each stairwell on every floor, thereby to direct passengers toward the stairs in case of emergency. The system not only provides information and identification, it also provides audible, directional cues to assist the passengers in locating the service which they are to seek.

Claims

1. An elevator system serving a plurality of floors in a building having a stairwell and having a door on each of said floors to provide access from a related floor to said stairwell, comprising:

a plurality of first speaker systems, each of said first speaker systems corresponding to and disposed in proximity with a corresponding one of said doors, each of said first speaker systems including an audio acoustical transducer and signal responsive means for causing said transducer to emit selected audible announcements in dependence on message signals provided thereto; and

a plurality of second speaker systems, each of said second speaker systems disposed on each floor of said building in proximity with an elevator corridor on the related floor; and

a controller for providing a fire signal indicative of the fact that a fire emergency mode of elevator operation is in effect in the building, in which mode the elevators are rendered non-responsive to ordinary passengers, and for providing, in response to said fire signal, a fire message signal to at least one of said first and second speaker systems on each of said floors of the building to cause at least one of said first speaker systems to announce the presence of the stairwell and to cause at least one of said second speaker systems to announce that passengers should not use the elevator and should use the stairwell.

2. An elevator system as recited in claim 1 wherein at least one of said second speaker systems is disposed in proximity with a gate, the gate disposed in the elevator corridor for providing passenger access between an elevator car and the elevator corridor.

3. An elevator system as recited in claim 1 wherein said controller receives hall call and car call requests for service and causes elevator cars to provide service in response thereto if said controller is not in the fire emergency mode, said controller providing a next car message signal to a selected one of said second speaker systems which corresponds with a corresponding car providing specific service to the related floor, said next car message causing said selected speaker system to announce said specific service, thereby to provide an audible cue to assist passengers in locating said specific service.

4. An elevator system according to claim 3 wherein said controller provides said next car message signal in response to said controller assigning a hall call request for service at said related floor to said corresponding car.

5. An elevator system according to claim 4 wherein said controller irrevocably assigns said corresponding car to provide said specific service at a point in time which is a threshold time in advance of the time when said corresponding car will arrive at said related floor, and said controller provides said next car message signal immediately after said point in time.

6. An elevator system according to claim 5 wherein said controller provides an estimated time message signal to said selected speaker system to cause said selected speaker system to announce that the next car will arrive in a period of time related to said threshold time.

7. An elevator system according to claim 4 wherein said controller provides said next car message signal to cause said selected speaker system to announce that said specific service will be in a determined direction.

8. An elevator system according to claim 7 wherein said controller provides said next car message signal immediately before said corresponding car arrives at said related floor.

9. An elevator system according to claim 3 wherein said controller provides said next car message signal in response to said corresponding car having a car call request for service to said related floor.

10. An elevator system according to claim 9 wherein said controller provides said next car message signal immediately before said corresponding car arrives at said related floor.

11. An elevator system according to claim 9 wherein said controller provides said next car message signal to cause said selected speaker system to announce that said specific service will be in the travel direction of said corresponding car.

12. An elevator system according to claim 3 wherein said controller provides said next car message signal immediately before said corresponding car arrives at said related floor.

13. An elevator system according to claim 3 wherein said controller provides said next car message signal to cause said selected speaker system to announce the direction in which said corresponding car will be traveling when it leaves said related floor to provide said specific service.

14. An elevator system according to claim 3 wherein said related floor is a floor other than a lobby floor.

15. An elevator system according to claim 3 wherein said related floor is a lobby floor.

16. An elevator system according to claim 15 wherein said controller assigns said floors to corresponding channeling groups during an up-peak mode of dispatching, said controller assigns each of said cars to one of said channeling groups of floors each time that said car is at the lobby during said up-peak mode of dispatching, and said controller provides said next car message signal to cause said selected speaker system to announce the range of floors within the channeling group of floors to which said corresponding car is assigned.

17. An elevator system according to claim 16 wherein said controller provides said next car message signal to cause said selected speaker system to announce the car identity of said corresponding car.

18. An elevator system according to claim 17 wherein said controller provides a delay message to said selected speaker system to cause said selected speaker system to announce an approximate period of delay before another car will offer said specific service.

19. An elevator system according to claim 3 wherein said controller provides said next car message signal to cause said selected speaker system to announce the car identity of said corresponding car.

20. An elevator system according to claim 3 wherein said controller provides an apology message to one of said second speaker systems on one of said floors at which a hall call request for service has not been responded to by any one of said cars for a long wait threshold period of time.

21. An elevator system according to claim 20 wherein said controller provides a delay message to said one speaker system to cause said one speaker system to announce an approximate period of delay before a car will answer said hall call request.

22. An elevator system according to claim 3 wherein said controller responds to a threshold weight in said corresponding car to provide a car full message to said selected speaker system to cause said selected speaker system to announce that said corresponding car is full.

23. An elevator system according to claim 22 wherein said controller provides a delay message to said selected speaker system to cause said selected speaker system to announce an approximate period of delay before another car will offer said specific service.

24. An elevator system according to claim 3 wherein said controller provides a delay message to said selected speaker system to cause said selected speaker system to announce an approximate period of delay before another car will offer said specific service.

25. An elevator system according to claim 24 wherein said controller provides said delay message while said car is at a floor providing access to passengers.

26. An elevator system according to claim 3 wherein said controller provides an estimated time message signal to said selected speaker system, to cause said selected speaker system to announce the estimated time remaining before the arrival of said corresponding car at said particular floor.