Apparatus and method for detecting location of moving body, lighting apparatus, air conditioning apparatus, security apparatus, and parking lot management apparatus

摘要

An apparatus and method for detecting the location of a moving body. The apparatus may include a speaker configured to intermittently generate a pulse signal to a detection space and a microphone array configured to obtain a reflected sound of the pulse signal that is generated in the detection space. The location of a moving body is estimated by extracting a change of a sound field from the reflected sound. The present invention can be applied to an apparatus for detecting a moving body without any side effect because the location of a moving body can be accurately detected up to an angle and distance. Furthermore, the present invention can be applied to various application apparatuses, such as a lighting apparatus, an air conditioning apparatus, a security apparatus, and a parking lot management apparatus because there is no problem in health and there is no side effect in application.

主权项

1. An apparatus for detecting a location of a moving body, the apparatus comprising:
a speaker configured to intermittently generate a pulse signal to a detection space; a microphone array configured to obtain a reflected sound of the pulse signal that is generated in the detection space; and a location estimation unit configured to estimate the location of the moving body by extracting a change of a sound field from the reflected sound, wherein, when the microphone array has a two-dimensional arrangement, the detection space is a three-dimensional space, and wherein the location estimation unit is further configured to extract the change of the sound field by extracting the reflected sound including a varied sound field by using a ratio of a sound source and a signal of the reflected sound received by each microphone included in the microphone array.