Portable smoke detector and method for identifying smoke generation position

A portable smoke detector for identifying a smoke generation position, the portable smoke detector comprising:

• a sampling pipe configured to suck air in a monitoring area through a sampling hole while moving in the monitoring area;
• a detector body configured to detect smoke contained in the air sucked by the sampling pipe and identify a smoke generation position;
• and
• a sensitivity switching control unit configured to control a smoke detection sensitivity,
• the sensitivity switching control unit including:
• a manual sensitivity switching function for manually switching the smoke detection sensitivity;
• and
• a reset unit configured to reset the smoke detection sensitivity for automatic switching by an automatic sensitivity switching function,
• wherein the sensitivity switching control unit is configured to:
• upon starting of operation or resetting the reset unit, set an initial sensitivity which is the same as or higher than a smoke detection sensitivity in a fixed smoke detector for detecting smoke in the monitoring area, in a state where switching of the smoke detection sensitivity does not work;
• upon starting work from the initial sensitivity after a generation of smoke is detected by the fixed smoke detector, identify the smoke generation position while moving within the monitoring area;
• and
• upon detecting a predetermined smoke detection signal during use for identifying the smoke generation position, bring the automatic sensitivity switching function into a functional state.

A portable smoke detector for identifying a smoke generation position, the portable smoke detector comprising:

• a sampling pipe configured to suck air in a monitoring area through a sampling hole while moving in the monitoring area;
• a detector body configured to detect smoke contained in the air sucked by the sampling pipe and identify a smoke generation position;
• and
• a sensitivity switching control unit configured to control a smoke detection sensitivity,
• the sensitivity switching control unit including:
• a manual sensitivity switching function for manually switching the smoke detection sensitivity;
• and
• an automatic sensitivity switching function for automatically switching the smoke detection sensitivity,
• wherein the sensitivity switching control unit is configured to:
• upon starting of operation, set an initial sensitivity which is the same as or higher than a smoke detection sensitivity in a fixed smoke detector for detecting smoke in the monitoring area, in a state where switching of the smoke detection sensitivity does not work;
• upon starting work from the initial sensitivity after a generation of smoke is detected by the fixed smoke detector, identify the smoke generation position while moving within the monitoring area;
• upon detecting a predetermined smoke detection signal during use for identifying the smoke generation position, activate to a state where switching of the smoke detection sensitivity works;
• and
• if the manual sensitivity switching is performed in the state where switching of the smoke detection sensitivity works, automatically switch the initial sensitivity in the manual sensitivity switching function.

A method for identifying a smoke generation position, the method comprising:

• using a portable smoke detector having a smoke detection sensitivity which is switchable;
• detecting a generation of smoke in a monitoring area by a fixed smoke detector, the portable smoke detector detecting the smoke contained in an air sucked through a sampling hole while moving in the monitoring area and identifying a smoke generation position;
• wherein the portable smoke detector comprises a sensitivity switching control unit including:
• a manual sensitivity switching function for manually switching the smoke detection sensitivity;
• an automatic sensitivity switching function for automatically switching the smoke detection sensitivity;
• and
• a selection unit for selecting the manual sensitivity switching function or the automatic sensitivity switching function,
• wherein:
• upon starting of operation or selection by the selection unit, the sensitivity switching control unit sets an initial sensitivity which is the same as or higher than a smoke detection sensitivity in the fixed smoke detector for detecting smoke in the monitoring area, in a state where switching of the smoke detection sensitivity does not work;
• upon starting work from the initial sensitivity after the generation of smoke is detected by the fixed smoke detector, the sensitivity switching control unit identifies the smoke generation position while moving within the monitoring area;
• upon detecting a predetermined smoke detection signal during use for identifying the smoke generation position, the sensitivity switching control unit brings the manual sensitivity switching function or the automatic sensitivity switching function selected by the selection unit into a functional state;
• and
• the portable smoke detector is used to identify the smoke generation position while switching the smoke detection sensitivity.

A method for identifying a smoke generation position, the method comprising:

• using a portable smoke detector having a smoke detection sensitivity which is switchable;
• detecting a generation of smoke in a monitoring area by a fixed smoke detector, the portable smoke detector detecting the smoke contained in an air sucked through a sampling hole while moving in the monitoring area and identifying a smoke generation position;
• wherein the portable smoke detector comprises a sensitivity switching control unit including:
• a manual sensitivity switching function for manually switching the smoke detection sensitivity;
• and
• a reset unit configured to reset the smoke detection sensitivity for automatic switching by an automatic sensitivity switching function;
• wherein:
• upon starting of operation or resetting the reset unit, the sensitivity switching control unit sets an initial sensitivity which is the same as or higher than a smoke detection sensitivity in the fixed smoke detector for detecting smoke in the monitoring area, in a state where switching of the smoke detection sensitivity does not work;
• upon starting work from the initial sensitivity after the generation of smoke is detected by the fixed smoke detector, the sensitivity switching control unit identifies the smoke generation position while moving within the monitoring area;
• upon detecting a predetermined smoke detection signal during use for identifying the smoke generation position, the sensitivity switching control unit brings the automatic sensitivity switching function into a functional state;
• and
• the portable smoke detector is used to identify the smoke generation position while switching the smoke detection sensitivity.

A method for identifying a smoke generation position, the method comprising:

• using a portable smoke detector having a smoke detection sensitivity which is switchable;
• detecting a generation of smoke in a monitoring area by a fixed smoke detector, the portable smoke detector detecting the smoke contained in an air sucked through a sampling hole while moving in the monitoring area and identifying a smoke generation position;
• wherein the portable smoke detector comprises a sensitivity switching control unit including:
• a manual sensitivity switching function for manually switching the smoke detection sensitivity;
• and
• an automatic sensitivity switching function for automatically switching the smoke detection sensitivity,
• wherein:
• upon starting of operation, the sensitivity switching control unit sets an initial sensitivity which is the same as or higher than a smoke detection sensitivity in the fixed smoke detector for detecting smoke in the monitoring area, in a state where switching of the smoke detection sensitivity does not work;
• upon starting work from the initial sensitivity after the generation of smoke is detected by the fixed smoke detector, the sensitivity switching control unit identifies the smoke generation position while moving within the monitoring area;
• upon detecting a predetermined smoke detection signal during use for identifying the smoke generation position, the sensitivity switching control unit activates to a state where switching of the smoke detection sensitivity works;
• if the manual sensitivity switching is performed in the state where switching of the smoke detection sensitivity works, the sensitivity switching control unit automatically switches the initial sensitivity in the manual sensitivity switching function;
• and
• the portable smoke detector is used to identify the smoke generation position while switching the smoke detection sensitivity.