Patent ID: 11947866
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A space monitoring method using a sound signal, the method comprising:
emitting a sound signal, which uses a synthesized sound obtained by synthesizing a plurality of sound sources having difference frequencies to emit a sound signal to a target space;
receiving a sound signal, which receives the sound signal of the target space;
measuring a frequency response, which measures a frequency response of a space on the basis of the received sound signal; and
determining a spatial condition, which determines a condition of the target space on the basis of the measured frequency response of the space,
wherein the emitting sound signal sets a plurality of sound sources to allow the plurality of sound sources to have different phases and uses the synthesized sound obtained by synthesizing the plurality of sound sources to set an emission sound signal.