Fire supervising system and extinguishing target determining system

• US 4,909,329 A
• Filed: 08/24/1987
• Issued: 03/20/1990
• Est. Priority Date: 08/27/1986
• Status: Expired due to Term

• Current Assignee: Hochiki Kabushiki Kaisha, Kabushiki Kaisha Takenata Komuten
• Original Assignee: Kabushiki Kaisha Kockiki Corporation, Takenaka Komuten Company Limited
• Inventors: Yoshida, Yoshiyuki, Ohashi, Yoshihiko, Miyazaki, Kensuke, Onozuka, Kazutaka, Tsuji, Toshihide
• Primary Examiner(s): Basinger, Sherman D.
• Assistant Examiner(s): Brahan, Thomas J.
• Application Number:
  US07/088,673
• Time in Patent Office: 939 Days
• Field of Search: 169/15, 169/16, 169/17, 169/25, 169/60, 169/61, 169/47, 239/69, 239/210, 239/587
• US Class Current: 169/61
• CPC Class Codes: A62C 37/00 Control of fire-fighting equipment heat-sensitive devices G01K
• CPC Class Codes: G08B 17/00 Fire alarms; Alarms responsive to explosion
• CPC Class Codes: G08B 17/113 Constructional details
• CPC Class Codes: G08B 26/00 Alarm systems in which substations are interrogated in succession by a central station

Abstract

This invention relates to a fire supervising system and a fire extinguishing target determining method in the water discharging and fire extinguishing operation. The system and method of the present invention is characterized by dividing a fire supervisory region into a matrix pattern to set a pluraity of sections; identifying the section corresponding to a position of a fire from the positional information of the fire starting within the supervisory region which has been output from a fire sensor; and selecting a water discharging target for a water discharging nozzle based on a priority order which has been preliminarily set for the respective sections or selecting the water discharging nozzle in charge, optimum for the fire extinguishing operation which has been set preliminarily for the respective sections.

Claims

1. A fire supervising system which comprises:

at least one fire sensor for detecting a fire starting within a supervisory region to output a positional information of the detected fire;

at least one water discharging nozzle for discharging water into the supervisory region;

a section setting means for dividing the supervisory region into a matrix pattern to set a plurality of sections and for allotting section numbers to the respective sections;

a section identifying means which is input with the fire position information from the fire sensor to identify the section corresponding to said position information; and

output the section number of the identified sections;

a nozzle control means for selecting the section in which a fire is to be extinguished and for driving the water discharging nozzle on the basis of a section number from the section identifying means and a priority order of the respective section numbers which is set up in advance; and

wherein water discharging distances of said at least one water discharging nozzle to the respective sections are set in said nozzle control means, and said at least one water discharging nozzle is controlled to vary its horizontal reach according to the section where a fire is to be extinguished.

2. A fire supervising system as claimed in claim 1, in which said nozzle control means further selects the water discharging target of the water discharging nozzle based on the water nozzle assignment which is set for the respective sections, thereby to control the driving of the nozzle.

3. A fire supervising system as claimed in claim 2, in which water discharging distances of the water discharging nozzle to the respective sections are set in said nozzle control means and said water discharging nozzle is controlled to vary its horizontal reaches according to the sections.

4. A fire supervising system as claimed in claim 3, in which said water discharging nozzle includes a water supply piping, said water supply piping having an electrically driven valve for varying a water supply amount and said water discharging nozzle is fixed with respect to its angle of elevation so that the water discharging distance is determined by the degree of opening of said electrically driven valve.

5. A fire supervising system as claimed in claim 4, in which said positional information output from the fire sensor is also input to said nozzle control means and said nozzle control means changes the direction of said water discharging nozzle according to the input positional information.

6. A fire supervising system as claimed in claim 4, in which said nozzle control means changes the direction of said water discharging nozzle according to angular data which are set in advance for the sections to be water discharging targets.

7. A fire supervising system which comprises:

at least one fire sensor for detecting a fire starting within a supervisory region to output positional information of the detected fire;

a plurality of water discharging nozzles for discharging water into the supervisory region;

a section setting means for dividing the supervisory region into a matrix pattern to set a plurality of sections and for allotting section numbers to the respective sections;

a section identifying means which is input with the fire position information from the fire sensor to identify the section corresponding to said position information and output the section number of the identified section; and

a nozzle control means for selecting and driving one of the water discharging nozzles in charge. On the basis of a section number from the section identifying means and water discharging nozzle selection data of the respective section numbers which is set up in advance.

8. A fire supervising system as claimed in claim 7, in which said nozzle control means further selects the water discharging target of the water discharging nozzle based on the water nozzle assignment which is set for the respective sections, thereby to control the driving of the nozzle.

9. A fire supervising system as claimed in claim 8, in which water discharging distances of the water discharging nozzle to the respective sections are set in said nozzle control means and said water discharging nozzle is controlled to vary it horizontal reaches according to the sections.

10. A fire supervising system as claimed in claim 9, in which said water discharging nozzle includes a water supply piping, said water supply piping having an electrically driven valve for varying a water supply amount and said water discharging nozzle is fixed with respect to its angle of elevation so that the water discharging distance is determined by the degree of opening of said electrically driven valve.

11. A fire supervising system as claimed in claim 10, in which said positional information output from the fire sensor is also input to said nozzle control means and said nozzle control means changes the direction of said water discharging nozzle according to the input positional information.

12. A fire supervising system as claimed in claim 11, in which said nozzle control means changes the direction of said water discharging nozzle according to angular data which are set in advance for the sections to be water discharging targets.

13. A method for determining a fire extinguishing target, comprising:

dividing a fire supervisory region into a matrix pattern to set a plurality of sections and alloting section numbers to the respective sections;

identifying the section containing a fire from the positional information of the fire starting in one or more of said sections within the supervisory region which has been output from a fire sensor, and outputting the section number of the identified section; and

selecting and driving at least one water discharging nozzle based on a section number which is identified as a water discharging target and based on a priority order set up in advance for said plurality of sections; and

wherein the at least one water discharging nozzle has a horizontal reach set for each said plurality of sections, and said at least one water discharging nozzle is adapted to change its horizontal reach according to the section which is the water discharging target.

14. A method for determining a fire extinguishing target as claimed in claim 13, in which at least one of said plurality of water discharging nozzles charged to discharge water is actuated so as extinguish the fire.

15. A method for determining a fire as claimed in claim 13, reaches of the water discharging nozzle are set for the respective sections and said water discharging nozzle is adapted to change its horizontal reaches according to the section to be the water discharging target, and wherein reach of the discharge water is further a function of the water discharging pressure.