Fire alarm system

• US 4,851,823 A
• Filed: 01/25/1988
• Issued: 07/25/1989
• Est. Priority Date: 03/20/1987
• Status: Expired due to Fees

• Current Assignee: Kei Mori
• Original Assignee: Kei Mori
• Inventors: Mori, Kei
• Primary Examiner(s): Swann, III, Glen R.
• Assistant Examiner(s): MULLEN, THOMAS J
• Application Number:
  US07/147,395
• Time in Patent Office: 547 Days
• Field of Search: 340/691-692, 340/584, 340/628, 340/505, 340/825.54, 340/825.55
• US Class Current: 340/691.1
• CPC Class Codes: G08B 25/014 Alarm signalling to a central station with two-way communication, e.g. with signalling back

Abstract

A fire alarm system is installed in a building containing therein a large number of rooms such as inns, hotels, office buildings and the like. The system comprises fire detectors, microphones and speakers installed in different rooms and connected to an administration room, so that when one of the fire detectors is put into operation, the microphone and the speaker turn on and inform the administration room of the operation of the fire detector. A conversation can be exchanged between the administration room and the room in which the fire detector is put into operation.

Claims

1. A fire alarm system for use in a building having a plurality of rooms and having response devices for responding to fire-related conditions comprising room fire detector means and room voice communication means located in a plurality of rooms in said building, an administrative control means installed in an administrative area of said building, said control means comprising indicating means connected to each of said fire detector means to provide an indication in said administrative area when any of said fire detector means has been activated by a fire-related condition in said room, said control means further comprising an administrative voice communication means connected to each of said room voice communication means to provide for voice communication between said administrative area and each of said rooms, and manual activation means installed in each of said rooms for activating a response device in the respective room for providing a response to a fire-related condition which caused activation of said fire detector means, said manual activation means and said voice communication means being placed in an operable state when said fire detector means has been activated by said fire-related condition.

2. A fire alarm system according to claim 1, wherein said manual activation means comprises a first manually operated device operable to initiate one response device which is responsive to one fire-related condition in said room and a second manually operated device operable to initiate another response device which is responsive to another fire-related condition in said room.

3. A fire alarm system according to claim 2, wherein said one response device is a sprinkler system and said other response device is an air conditioner.

4. A fire alarm system according to claim 2, wherein said manual activation means has an operable and a non-operable state, said manual activation means having electrical connecting means connected to said fire detector means such that said manual activation means is activated from its non-operable to its operable state when said fire detector means is activated upon detecting a fire-related condition is said room.

5. A fire alarm system according to claim 1, wherein said response device is a sprinkler system, said control means comprising notification means in said administrative area connected to said manual activation means to provide a notification in said administrative area that said manual activation means has been manually activated.

6. A fire alarm system according to claim 1, wherein said response device is a sprinkler system having a heat-sensitive element and cut-off circuit means in each of said rooms which cuts off said hest-sensitive element when said manual activation means has been manually activated to thereby set off said sprinkler system, said control means further comprising notification means in said administrative area and connected to said cut-off circuit means for providing a notification in said administrative area that said manual activation means has been activated.

7. A fire alarm system according to claim 1, wherein each of said room voice communication means and said administrative voice communication means define a plurality of interconnected voice communication means between each of said rooms and said administrative area, each of said interconnected voice communication means having an operable and a non-operable state, said control means comprising electrical connecting means between each of said interconnected voice communication means and the respective fire detector means in each of said rooms such that each of said interconnected voice communication means is activated from its non-operable to its operable state when the respective fire detector means is activated upon detecting a fire-related condition in the respective room.

8. A fire alarm system according to claim 1, wherein each of said voice communication means comprises a microphone and a speaker, further comprising a recording-play back means in said administrative area for recording voice communication over said microphone and speaker in said administrative area, said recording play back means being activated to an operable state when said fire detector means has been activated.

9. A fire alarm system according to claim 8 further comprising a synthesizer in each of said rooms for delivering a prerecorded voice message to the occupant of said room, and means connecting said synthesizer in each room to the respective fire detector means in each room to initiate operation of said synthesizer when the respective fire detector means has been activated upon detecting a fire-related condition in said room.

10. A fire alarm system according to claim 9 further comprising switching circuit means in each of said rooms for switching off said synthesizer in each of said rooms when said speaker in said administrative area is voice-activated.

11. A fire alarm system for use in a building having a plurality of rooms and having response devices for responding to fire-related conditions comprising room fire detector means, a microphone, a speaker and a synthesizer located in a plurality of rooms, said synthesizer being operable to deliver a prerecorded voice message to the occupant of said room, an administrative control means installed in an administrative area of said building, said control means comprising a mirophone and a speaker connected to each of the respective speakers and microphones in each of said rooms to provide voice communication between said administrative area and each of said rooms, and manual activation means installed in each of said rooms for activating a response device which provides a response to a fire-related condition which caused activation of said fire detector means, said microphone and said speaker along with said manual operation means and said synthesizer in each room being placed in an operable state when the respective fire detector means in each room has been activated, whereby said synthesizer delivers a voice message to the occupant in said room and said message is adapted to be acted upon by said room occupant to manually initiate operation of said manual activation means in response to said voice message, said voice message also being communicated to said administrative area by said microphone in said room and said speaker in said administrative area.

12. A fire alarm system according to claim 11, wherein said manual activation means comprises a first manually operated device operable to initiate one response device which is responsive to one fire-related condition in said room and a second manually operated device operated to initiate another response device which is responsive to another fire-related condition in said room.

13. A fire alarm system according to claim 12, wherein said one response device is a sprinkler system and said other response device is an air conditioner.

14. A fire alarm system according to claim 11, wherein said response device is a sprinkler system, said control means comprising notification means in said administrative area connected to said manual activation means to provide a notification in said administrative area that said manual activation means has been manually activated.

15. A fire alarm system according to claim 11, wherein said response device is a sprinkler system having a heat-sensitive element, a cut-off circuit means in each of said rooms which cuts off said heat-sensitive element when said manual activation means has been manually activated to thereby set off said sprinkler system, said control means further comprising notification means in said administrative area and connected to said cut-off circuit means for providing a notification in said administrative area that said manual activation means has been activated.

16. A fire alarm system according to claim 11, wherein said manual activation means has an operable and a non-operable state, said manual activation means having electrical connecting means connected to said fire detector means such that said manual activation means is activated from its non-operable to its operable state when said fire detector means is activated upon detecting a fire-related condition in said room.

17. A fire alarm system according to claim 11 further comprising a recording-play back means in said administrative area for recording voice communication over said microphone and speaker in said administrative area, said recording-play back means being activated to an operable state when said first detector means has been activated.

18. A fire alarm system according to claim 11 further comprising switching circuit means in each of said rooms for switching off said synthesizer in each of said rooms when said speaker in said administrative area is voice-activated.

19. A fire alarm system according to claim 11, wherein said control means further comprises indicating means providing an indication in said administrative area when said fire detector means has been activated by a fire-related condition in the respective room.