Communications: electrical – Systems – Signal light systems
Patent
1989-09-19
1992-08-18
Isen, Forester W.
Communications: electrical
Systems
Signal light systems
340628, 362147, 40560, G08B 500
Patent
active
051403013
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a guidance method and apparatus for emergency evacuation of people out of a building or the like when abnormal conditions or accident occurs.
BACKGROUND OF THE INVENTION
When a fire or other accident occurs in a building or an underground building, people in that building must be evacuated. To this end an alarm signal generating system, an emergency lighting system, a system for displaying and indicating emergency exits and the like are installed, but at present, previously trained men and women use loudspeakers, flashlights and the like in order to guide and evacuate people inside the building.
However, the above-described guidance method in the case of emergency evacuation by shouting in loud voices or turning on lighting equipment is almost ineffective when people are seized with panic and if the guidance of people to a safety place by the guides is not carried out satisfactory and properly, the guidance method using guides is also ineffective. Furthermore in the case of emergency lighting utilizing light sources, when smoke is produced, light rays prevent transmission through smoke so that the words indicating the emergency exits become almost impossible to read. Furthermore when an emergency passage turns in a complex way vision blocked by obstacles, it becomes impossible for people to select a suitable emergency passage.
The present invention was made to overcome the above and other problems encountered in the conventional guidance methods and apparatus in the case of emergency evacuation and has for its object to provide a guidance method and apparatus in the case of emergency evacuation when a fire or the like happens, which can provide evacuation information to the evacuees and correctly guide them to a safe place.
SUMMARY OF THE INVENTION
To the above and other ends, a guidance method in case of emergency evacuation in accordance with the present invention is characterized in that abnormal conditions occurring in a building or the like are detected and converted into the abnormal detection signal representative of the occurrence of abnormal conditions; in response to the detection signal, a laser is automatically energized to emit a laser beam which is directed in the direction in which the evacuees are to escape.
An emergency guidance system of the present invention is characterized in that the generated laser beam is redirected toward the direction in which the evacuees must escape by utilizing one or more optical scanners installed in the building or the like.
Furthermore, a guidance method in case of emergency evacuation of the present invention is characterized in that abnormal conditions occurring in a building or the like are detected and converted into a detection signal representative of the occurrence of abnormal conditions and in response to the detection signal, a laser is automatically energized to emit a laser beam from the side of an emergency exit towards the interior of the building or the like.
Moreover, a guidance method in the case of emergency evacuation is characterized in that a laser beam is directed from an emergency exit toward the interior of a building or the like by utilizing one or more optical scanners.
An emergency evacuation guidance apparatus of the present invention is characterized by comprising a laser so disposed as to emit a laser beam within a building or the like in the direction in which the evacuees must escape; abnormal condition detection means for detecting abnormal conditions which occur in the building or the like and for generating an abnormal condition detection signal representative of the occurrence of any abnormal condition and a control unit connected to both the laser and the abnormal condition detection means and adapted to energize the laser in response to the abnormal condition detection signal.
Furthermore, a guidance apparatus in case of emergency evacuation of the present invention is characterized by comprising a laser so disposed within a building or the like as to emit a laser b
REFERENCES:
patent: 4084339 (1978-04-01), Peltier et al.
patent: 4649376 (1987-03-01), Frank
patent: 4802065 (1989-01-01), Minter et al.
Hofsass Jeffery A.
Isen Forester W.
Kabushiki Kaisha Seidenko
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