Air conditioner

Abstract

PROBLEM TO BE SOLVED: To perform energy-saving running in consideration of operability and comfort, by detecting sound information and more accurately recognizing the action state of a user in an air conditioning space.SOLUTION: An air conditioner, having a microphone 408 for collecting sound in an air conditioning space, includes: an amplifier for amplifying a sound signal detected by the microphone 408; and a band extraction part for extracting a specific frequency band from the amplified sound signal. A plurality of band extraction parts is provided to extract frequency bands different from one another.

Description

technical field [0001] The present invention relates to an air conditioner, and more particularly to an air conditioner provided with a sound sensor for detecting sound in the air conditioner. Background technique [0002] The air conditioner circulates the indoor air in the heat exchanger, adjusts it through heating, cooling, dehumidification functions, etc., and blows the adjusted conditioned air into the room to temper the indoor air. In recent years, from the viewpoint of preventing global warming, energy-saving operation has been further demanded for air conditioners. In addition, with recent advances in sensor technology, various types of sensors have been installed. Various methods have been proposed, one of which is to provide an air conditioner with an acoustic sensor to improve operability, and to perform energy-saving operation while taking comfort into consideration. [0003] As the prior art of devices including such an acoustic sensor, devices of Patent Docum...

AI Technical Summary

Problems solved by technology

[0013] However, the remote control device disclosed in Patent Document 1 detects the volume level and compares it with the data stored in the memory, and automatically adjusts the volume level of the television receiver in accordance with the environmental conditions, but there is no description of extracting the frequency band to determine the sound source. Content

[0014] In addition, Patent Document 2 relates to a voice recognition device for recognizing human voices, and describes a means for determining an input voice signal including noise that should be recognized by changing an effective determination threshold value corresponding to the noise level. , and does not describe the content of determining the sound source based on the continuous time, intermittent time, regularity, irregularity, and detected ratio of the sound signal separated for each specific frequency band

[0015] In addition, Patent Document 3 describes a unit capable of recognizing human voice signals with a simple structure, but does not describe the unit based on the continuous time, intermittent time, regularity, irregularity, detected Scale to determine the content of the audio source

Images