| 摘要 |
PROBLEM TO BE SOLVED: To automatically associate positional information on a fire sensor with its address to store them without causing increase in power consumption in the normal time.SOLUTION: An automatic fire alarm equipment 1 includes: a plurality of fire sensors 10 having their address; a fire receiver 20 communicatively connected with the plurality of fire sensors; and a display device 30 connected with the fire receiver 20 for displaying a fire occurrence place on the basis of information from a fire sensor 10 at the time of fire occurrence. Each fire sensor 10 comprises: a positioning unit 15 for obtaining positional information on the basis of a positioning system; a positioning unit power supply control unit 16 for controlling the supply of driving power to the positioning unit 15; a sensor transmission/reception unit 13 for communicating with the fire receiver 20; and a sensor control unit 14 that, when the sensor transmission/reception unit 13 receives a positioning command, controls the positioning unit power supply control unit 16 to supply power to the positioning unit 15, and controls the sensor transmission/reception unit 13 to transmit the positional information obtained from the positioning unit 15 together with the address, and after the transmission, controls the positioning unit power supply control unit 16 to cut off the supply of power to the positioning unit 15.SELECTED DRAWING: Figure 2 |
