FIRE DETECTION DEVICE AND METHOD OF DETECTING FIRE

摘要

A fire detection device includes a gas sensor, a measuring instrument, and a control device. The gas sensor is configured to detect a gaseous substance in a measurement space. The gas sensor is configured to output a first result of the detection. The measuring instrument is configured to measure a diameter of each particle existing in the measurement space and count a number of particles for each of diameter ranges to generate distribution data. The control device includes a processor. The processor is configured to determine, on basis of the first result acquired from the gas sensor, whether a smoke exists in the measurement space. The processor is configured to start the measuring instrument upon determining that a smoke exists in the measurement space. The processor is configured to determine, on basis of first distribution data acquired from the measuring instrument, whether a fire has occurred.

主权项

1. A fire detection device, comprising:
a gas sensor configured to
detect a gaseous substance in a measurement space, andoutput a first result of the detection; a measuring instrument configured to
measure a diameter of each particle existing in the measurement space, andcount a number of particles for each of diameter ranges to generate distribution data; and a control device including:
a processor configured to
determine, on basis of the first result acquired from the gas sensor, whether a smoke exists in the measurement space,start the measuring instrument upon determining that a smoke exists in the measurement space, anddetermine, on basis of first distribution data acquired from the measuring instrument, whether a fire has occurred.