The invention relates to a vehicle-mounted holographic noise reduction air conditioner system based on an air conditioner sound portrait system. The vehicle-mounted holographic noise reduction air conditioner system is composed of a microphone unit, a sound holographic noise reduction controller, a loudspeaker unit, an air outlet sound collection module and the sound portrait system. According to the vehicle-mounted holographic noise reduction air conditioning system, noise signals are collected in real time through the MEMS microphone, and analog sound signals are sent to the sound holographic noise reduction controller; the acoustical holography noise reduction controller can calculate a noise control sound field in real time, analog signals collected by the microphone in real time are subjected to analog-to-digital conversion, a noise sound field is calculated, and reverse sound waves are generated through an algorithm, subjected to digital-to-analog conversion and then sent to the loudspeaker; the loudspeaker can send out reverse sound waves in real time, receives a signal instruction sent by the noise controller, and acts in real time to reduce noise; the sound portraying system can carry out sound portraying on the generated noise in real time, and is matched with an optimized sound source similar to the sound portraying system, so that the sound texture of the air conditioner is improved; the air outlet sound collection module is used for collecting air conditioner air outlet sound.
本发明涉及一种基于空调声音画像系统的车载全息降噪空调系统,由麦克风单元、声全息降噪控制器、扬声器单元、出风口声音采集模块和声音画像系统构成。本发明车载全息降噪空调系统通过MEMS麦克风实时采集噪声信号,将模拟声信号发送给声全息降噪控制器;声全息降噪控制器能实时计算噪声控制声场,通过麦克风实时采集的模拟信号,进行模数转换并计算噪声声场,通过算法生成反相声波进行数模转换后发送给扬声器;扬声器能实时发出反相声波并,接收到噪声控制器发来的信号指令,实时做功发出降噪声;声音画像系统能够实时将发出的噪音进行声音画像,并匹配与之相近的优化音源,改善空调声音质感;出风口声音采集模块用于采集空调出风口声音。
Vehicle-mounted holographic noise reduction air conditioner system based on air conditioner sound portrait system
一种基于空调声音画像系统的车载全息降噪空调系统
2022-10-14
Patent
Electronic Resource
Chinese
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht |
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