Portable smoke detector and method for identifying smoke generation position

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11393312
APP PUB NO 20210043055A1
SERIAL NO

17063928

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A smoke detection device main body of a portable smoke detector can switch smoke detection sensitivity. At the start of operation, the smoke detection sensitivity of the portable smoke detector is equal to or higher than a smoke detection sensitivity of a fixed smoke detector that detects smoke in a monitoring area. At this time, switching of smoke detection sensitivity does not work. After the fixed smoke detector detects smoke generation, when the portable smoke detector is used to locate the smoke generation position while moving in the monitoring area, an operation is performed from an initial sensitivity. When a predetermined smoke detection signal is detected while using the portable smoke detector to identify the smoke generation position, the smoke detection sensitivity switching is activated, and the smoke detection sensitivity is changed accordingly. By lowering the smoke detection sensitivity, the smoke generation position is narrowed down and identified.

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Patent Owner(s)

  • C. HOCHIKI CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsukuma, Hidenari Tokyo, JP 9 71

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