Adaptive escape routing system

• US 6,778,071 B2
• Filed: 08/21/2002
• Issued: 08/17/2004
• Est. Priority Date: 08/21/2002
• Status: Expired due to Fees

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Megerle, Clifford A.
• Primary Examiner(s): POPE, DARYL C
• Application Number:
  US10/224,552
• Publication Number:
  US 20040036579A1
• Time in Patent Office: 727 Days
• Field of Search: 340/332, 340/506, 340/3.1, 340/825.36, 340/825.49, 116/67.R, 116/202, 116/200, 116/214
• US Class Current: 340/332
• CPC Class Codes: G08B 7/062 indicating emergency exits
• CPC Class Codes: G08B 7/066 guiding along a path, e.g. evacuation path lighting strip

Abstract

An adaptive escape routing system for use in buildings and building complexes in which a plurality of detectors or detector suites are situated throughout the building or building complex and provide information to a central controller as to the release of toxic, injurious, and/or agents, such as nuclear, biological, or chemical agents, in any form (including gaseous, vaporous, or particulate form). The controller, upon detection of an active sensor, commands exit and, optionally, no exit signage to designate safe exit/escape routes.

Claims

1. An adaptive escape routing system comprising:

a plurality of sensors for sensing the occurrence of a hazardous event within a building or occupied structure, the building or occupied structure having a plurality of emergency exits and signage associated therewith; and

a controller connected to the sensors for determining a subset of the exits providing a safe exit route in the event of a hazardous event, the controller, upon receiving information from one or more sensors indicating a hazardous event, accessing a memory as a function of the sensor or sensors indicating the hazardous event and determining a probable dispersal pattern for some period of time after the hazardous event is initially sensed and identifying that subset of exits providing a safe exit route as a function of the probable dispersal pattern, the controller controlling the signage to direct occupants to the subset of exits providing a safe exit route.

2. The adaptive escape routing system of claim 1, wherein the exit signage includes at least selectively illuminatable directional arrows, said controller selectively illuminating selected of the directional arrows to indicate a safe exit route.

3. The adaptive escape routing system of claim 1, wherein the exit signage includes at least a selectively illuminatable ‘

stop’

message, said controller selectively illuminating selected ‘

stop’

messages to indicate the absence of a safe exit route.

4. The adaptive escape routing system of claim 1, wherein the exit signage includes at least selectively illuminatable directional arrows and includes at least a selectively illuminatable ‘

stop’

message, said controller selectively illuminating selected of the directional arrows to indicate a safe exit route and selectively illuminating selected ‘

stop’

messages to indicate the absence of a safe exit route.

5. The adaptive escape routing system of claim 1, wherein the hazardous event includes the release of a chemical, biological, and/or nuclear in a gaseous, vapor, aerosol, or particulate form.

6. An adaptive escape routing system for a building or other occupied structure having a plurality of emergency exits, comprising:

sensor means distributed throughout the building for detecting the occurrence of a hazardous event,

signage means for providing exit routing indications to occupants; and

a controller connected to the sensor means for determining a subset of the exits providing a safe exit route in the event of a hazardous event, the controller, upon receiving information from one or more sensors indicating a hazardous event, accessing a memory as a function of the sensor or sensors indicating the hazardous event and determining a probable dispersal pattern for some period of time after the hazardous event is initially sensed and identifying that subset of exits providing a safe exit route as a function of the probable dispersal pattern and controlling the signage means to provide routing indications to the subset of exits providing a safe exit route.

7. The adaptive escape routing system of claim 6, wherein the signage means includes at least selectively illuminatable directional arrows, said controller selectively illuminating selected of the directional arrows to indicate a safe exit route.

8. The adaptive escape routing system of claim 6, wherein the signage means includes at least a selectively illuminatable ‘

stop’

message, said controller selectively illuminating selected ‘

stop’

messages to indicate the absence of a safe exit route.

9. The adaptive escape routing system of claim 6, wherein the signage means includes at least selectively illuminatable directional arrows and includes at least a selectively illuminatable ‘

stop’

message, said controller selectively illuminating selected of the directional arrows to indicate a safe exit route and selectively illuminating selected ‘

stop’

messages to indicate the absence of a safe exit route.

10. The adaptive escape routing system of claim 6, wherein the hazardous event includes the release of a chemical, biological, and/or nuclear in a gaseous, vapor, aerosol, or particulate form.

11. A method of determining and indicating escape routes in a building or other occupied structure having a plurality of exit ways and signage associated therewith, comprising:

sensing the occurrence of a hazardous event within the building or occupied structure; and

determining a probable dispersal pattern for some period of time after the hazardous event is initially sensed and identifying that subset of exits providing a safe exit route as a function of the probable dispersal pattern and

controlling the signage to direct occupants to the subset of exits providing a safe exit route.

12. The method of claim 11, wherein the exit signage includes at least selectively illuminatable directional arrows, said controlling step including selectively illuminating selected of the directional arrows to indicate a safe exit route.

13. The method of claim 11, wherein the exit signage includes at least selectively illuminatable ‘

stop’

message said controlling step including selectively illuminating selected ‘

stop’

messages to indicate the absence of a safe exit route.

14. The method of claim 11, wherein the exit signage includes at least selectively illuminatable directional arrows and includes at least a selectively illuminatable ‘

stop’

message, said controlling step including selectively illuminating selected of the directional arrows to indicate a safe exit route and selectively illuminating selected ‘

stop’

messages to indicate the absence of a safe exit route.