Fire sensing system, fire sensing method, and program
AssigneeNEC Corporation
InventorTakeshi Akagawa
Life of this patent
Estimating the term…
Abstract
To provide a fire sensing system, fire sensing method, and program with which it is possible to identify the position of a fire using a low number of sensors A fire sensing system 1 provided with: gas sensors 11a, 11b, 11c for sensing a change in gas concentration at three locations P1, P2, P3; a gas propagation speed calculation unit 12 for sensing gas concentration increase times T1, T2, T3 at the three locations P1, P2, P3 and calculating the gas propagation speeds v1, v2, v3 at the three locations P1, P2, P3; and a fire information estimation unit 13 for estimating the position of the fire on the basis of the gas concentration increase times T1, T2, T3 and the gas propagation speeds v1, v2, v3.
Claims18
A fire sensing system comprising:
- a gas sensor sensing changes in gas concentration at three locations;
- a gas propagation speed calculation unit sensing gas concentration increase time points at the three locations, and calculating gas propagation speeds at the three locations;
- and
- a fire information estimation unit estimating a position of a fire, based on the gas concentration increase time points and the gas propagation speeds.
A fire sensing method comprising:
- sensing gas concentration increase time points at three locations;
- calculating gas propagation speeds at the three locations;
- and
- estimating a position of the fire, based on the gas concentration increase time points and the gas propagation speeds.
A non-transitory computer readable medium having a fire sensing program stored thereon, the fire sensing program causing a computer to execute:
- processing of sensing gas concentration increase time points at three locations;
- processing of calculating gas propagation speeds at the three locations;
- and
- processing of estimating a position of the fire, based on the gas concentration increase time points and the gas propagation speeds.
Dependencies are inferred from the claim text.