Title:
FIRE DETECTOR AND AUTOMATIC FIRE EXTINGUISHING DEVICE
Document Type and Number:
Japanese Patent JP3585194
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily specify the origin of a fire by an infrared ray camera and to prevent handling time and labor.
SOLUTION: The calculations of the functions Sf of two rubbish surfaces are calculated from the height data of each part of the two rubbish surfaces with a rubbish pit 1, the infrared ray incident intensity of each point which can be obtained from the infrared ray camera device 1 arranged on the upper side of the rubbish pit 1 is inputted, the function L of the detection direction is calculated when the point in which the temperature based on this infrared ray incident intensity exceeds a set temperature exists, the intersection point of the functions Sf of the two rubbish surfaces and the function L of the detection direction is calculated and the point is defined as the origin of a fire. Further, the discharge curve as the third function when the discharge from a discharge nozzle 13 passing the determined origin of the fire is performed is calculated. Based on the calculation, the control of the discharge angle of the discharge nozzle 13 is performed. As a result, because two rubbish surfaces are recognized by the factions Sf of two rubbish surfaces, the origin of the fire can be instantly determined when a fire direction is detected from the infrared ray camera device 12. At the same time as when the origin of the fire is specified, the discharge direction of the discharge nozzle 13 for which a natural falling is considered can be calculated.
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Inventors:
Masao Inoue
Application Number:
JP4852096A
Publication Date:
November 04, 2004
Filing Date:
March 06, 1996
Export Citation:
Assignee:
Nomi Disaster Prevention Co., Ltd.
International Classes:
A62C35/11; A62C37/36; G08B17/00; G08B17/12; (IPC1-7): A62C37/36; A62C35/11; G08B17/00; G08B17/12
Domestic Patent References:
| JP3198872A | ||||
| JP5018736A | ||||
| JP6307813A | ||||
| JP3186274A | ||||
| JP1242077A | ||||
| JP62115638U | ||||
| JP7055737A | ||||
| JP61021562U |
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