WO2021174780A1 - Active noise reduction air conditioner and control method therefor - Google Patents

Active noise reduction air conditioner and control method therefor Download PDF

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Publication number
WO2021174780A1
WO2021174780A1 PCT/CN2020/111706 CN2020111706W WO2021174780A1 WO 2021174780 A1 WO2021174780 A1 WO 2021174780A1 CN 2020111706 W CN2020111706 W CN 2020111706W WO 2021174780 A1 WO2021174780 A1 WO 2021174780A1
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Prior art keywords
indoor
noise reduction
outdoor
air conditioner
active noise
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PCT/CN2020/111706
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French (fr)
Chinese (zh)
Inventor
汪亚东
赵凯强
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青岛海尔空调器有限总公司
海尔智家股份有限公司
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Publication of WO2021174780A1 publication Critical patent/WO2021174780A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/247—Active noise-suppression

Definitions

  • the invention belongs to the technical field of air conditioners, and specifically provides an active noise reduction air conditioner and a control method thereof.
  • the noise removal methods for indoor units mainly include attaching a liner to the air outlet, optimizing the shape of the fan blade, etc., and most of them are passive noise reduction.
  • the noise generated by air conditioners has both high frequency noise and low frequency noise.
  • Passive noise reduction has a strong ability to eliminate high frequency noise, but it is helpless against low frequency noise. In the noise range of 1000 Hz or lower, passive noise reduction Noise reduction can't work, and low-frequency noise can affect human hearing and nervous system, and its long-term existence will seriously threaten the health of users.
  • the present invention provides an active noise reduction air conditioner, including an outdoor unit and an indoor unit, characterized in that the indoor unit further includes an indoor sound collector and an indoor filter connected in sequence , An indoor active noise reduction processing module and an indoor speaker, where the indoor speaker is a low frequency speaker.
  • the low frequency speaker is a low frequency HIFI sound.
  • the indoor filter is an all-pass filter.
  • the indoor sound collector is a microphone.
  • the present invention also provides an active noise reduction air conditioner, including an outdoor unit and an indoor unit.
  • the outdoor unit further includes an outdoor sound collector, an outdoor filter, an outdoor active noise reduction processing module, and an outdoor speaker connected in sequence ,
  • the outdoor speaker is a low frequency speaker.
  • the present invention also provides a control method of an active noise reduction air conditioner.
  • the active noise reduction air conditioner includes an outdoor unit and an indoor unit, and is characterized in that the indoor unit further includes an indoor sound collector and an indoor filter connected in sequence An indoor active noise reduction processing module and an indoor loudspeaker, the indoor loudspeaker is a low frequency loudspeaker, and the control method includes:
  • S400 Control the indoor active noise reduction processing module to process the received noise in real time, and generate a noise reduction wave output signal, which is transmitted to the indoor speaker.
  • control method further includes:
  • the present invention also provides a control method of an active noise reduction air conditioner.
  • the active noise reduction air conditioner includes an outdoor unit and an indoor unit, and is characterized in that the outdoor unit further includes an outdoor sound collector and an outdoor filter connected in sequence.
  • control method further includes:
  • step S810 Return to step S500 again every ⁇ T2 time.
  • the active noise reduction air conditioner includes an outdoor unit and an indoor unit, and the indoor unit also includes an indoor sound collector, an indoor filter, and an indoor active noise reduction processing module connected in sequence. And indoor speakers, the indoor speakers are low frequency speakers.
  • the air conditioner of the present invention can emit a noise reduction wave corresponding to the low-frequency noise, thereby canceling the low-frequency noise, and achieving the purpose of noise reduction.
  • the low frequency speaker has been documented in the prior art. Its main function is to only output low-frequency volume, the lower limit of low-frequency reproduction is low, and the high-frequency cut-off frequency is low. Therefore, the high-frequency reverse sound waves of the sound emitted by the low-frequency speaker are attenuated.
  • the low frequency loudspeaker's vibration system is of greater quality and compliance, and the frequency range of the low frequency loudspeaker can be 20 Hz to 1000 Hz.
  • the low frequency speaker does not need to reduce the received high-frequency noise amplitude through the indoor filter, but avoids high-frequency output through its own physical characteristics, and also avoids high-frequency howling, preventing high-frequency superposition and increasing sharp high-frequency The noise situation occurs.
  • Figure 1 is a schematic diagram of the overall structure of the active noise reduction air conditioner of the present invention.
  • FIG. 2 is a schematic diagram of the indoor unit structure of the active noise reduction air conditioner of the present invention.
  • FIG. 3 is a schematic diagram of the outdoor unit structure of the active noise reduction air conditioner of the present invention.
  • FIG. 4 is a schematic diagram of the structural connection relationship of the indoor unit of the active noise reduction air conditioner of the present invention.
  • Fig. 5 is a control method of the active noise reduction air conditioner with respect to the indoor unit of the present invention
  • FIG. 6 is a schematic diagram of the structural connection relationship of the outdoor unit of the active noise reduction air conditioner of the present invention.
  • Fig. 7 is a control method of the outdoor unit of the active noise reduction air conditioner of the present invention.
  • the active noise reduction air conditioner includes an outdoor unit 2 and an indoor unit 1.
  • the indoor unit 1 also includes an indoor sound collector 11 and an indoor filter (in the indoor unit, without (Shown), an indoor active noise reduction processing module (in the indoor unit, not shown), and an indoor speaker 12, which is a low frequency speaker.
  • control method of the active noise reduction air conditioner includes:
  • the active noise reduction processing module in the control room receives the processed noise
  • control room active noise reduction processing module processes the received noise in real time, and generates a noise reduction wave output signal, which is transmitted to the indoor speaker.
  • the active noise reduction air conditioner of the present invention first collects noise, and then processes the noise through an indoor filter to make it a sound wave with the same amplitude and 180 degrees opposite phase, which is input to the indoor active noise reduction processing module and undergoes internal conversion to generate
  • the noise-reducing wave output signal is transmitted to the indoor speaker 12, and the indoor speaker 12 emits a low-frequency noise-reducing wave to cancel out the low-frequency noise.
  • the most important source of noise is generated by the fan of indoor unit 1 when it rotates.
  • the frequency of the noise generated by the fan of indoor unit 1 is different at different speeds, including both low-frequency noise and High-frequency noise, and high-frequency noise can be easily solved by physical cotton pads or other blocking solutions, but low-frequency noise is difficult to block.
  • Indoor filters can obtain the function of filtering high-frequency noise according to the selection, such as selection Adaptive filter, or low-pass filter.
  • selection Adaptive filter or low-pass filter.
  • the present invention selects a special indoor speaker 12, that is, the indoor speaker 12 is a low-frequency speaker, which itself blocks high-frequency noise.
  • the filter here There is no need to deliberately choose a low-pass filter or an adaptive filter, but only low-frequency sound waves can be output through the low-frequency speaker, which realizes the elimination of indoor low-frequency noise.
  • the low frequency speaker receives the noise reduction wave output signal of the indoor active noise reduction processing module, it sends out a low frequency sound wave opposite to the noise of the low frequency part.
  • the above description deals with the low-frequency noise of the indoor unit 1.
  • the outdoor unit 2 also produces low-frequency noise. These noises can penetrate walls or windows and enter the room. Therefore, it is also very important to eliminate the noise of the outdoor unit 2.
  • the present invention also provides an active noise reduction air conditioner, as shown in Figure 1, Figure 3 and Figure 6, comprising an outdoor unit 2 and an indoor unit 1.
  • the outdoor unit 2 also includes an outdoor sound collector 21 and an outdoor A filter (in the outdoor unit, not shown), an outdoor active noise reduction processing module (in the outdoor unit, not shown), and an outdoor speaker 22, which is a low frequency speaker.
  • control method is shown in Figure 7, including:
  • step S810 Return to step S500 again every ⁇ T2 time.
  • ⁇ T2 20s.
  • the indoor sound collector 11 and the outdoor sound collector 21 are microphones, of course, they can also be other electrical components or components that can collect volume; the indoor speaker 12 and the outdoor speaker 22 are low-frequency HIFI speakers, of course, they can also be other Ordinary speakers or other equipment that can only transmit low-frequency sound waves do not deviate from the principle of the present invention, and therefore all fall within the protection scope of the present invention.
  • indoor filters and outdoor filters do not need to filter high-frequency sound waves
  • the indoor filters and outdoor filters can obviously also be all-pass filters, etc., as long as the noise collected by the microphone can be processed into amplitude The same sound waves with the opposite phase of 180 degrees are sufficient.
  • the above-mentioned clothes treatment device also includes some other well-known structures, such as a processor, a controller, a memory, etc.
  • the memory includes, but is not limited to, random access memory, flash memory, read-only memory, programmable read-only memory, Volatile memory, non-volatile memory, serial memory, parallel memory or registers, etc.
  • Processors include but are not limited to CPLD/FPGA, DSP, ARM processor, MIPS processor, etc.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Disclosed are an active noise reduction air conditioner and a control method therefor, which belong to the field of air conditioners, and aim to solve the problem of existing air conditioners being unable to reduce low-frequency noise. The active noise reduction air conditioner comprises an outdoor unit (2) and an indoor unit (1). The indoor unit (1) further comprises an indoor sound collector (11), an indoor filter, an indoor active noise reduction processing module and an indoor loudspeaker (12) that are sequentially connected, with the indoor loudspeaker (12) being a low-frequency loudspeaker. The air conditioner can emit noise reduction waves corresponding to low-frequency noise, such that the low-frequency noise is counteracted, and the aim of noise reduction is achieved. Moreover, by means of the design of the low-frequency loudspeaker, no extra special model selection requirement is needed for the indoor filter.

Description

主动降噪空调器及其控制方法Active noise reduction air conditioner and its control method 技术领域Technical field
本发明属于空调器技术领域，具体提供一种主动降噪空调器及其控制方法。The invention belongs to the technical field of air conditioners, and specifically provides an active noise reduction air conditioner and a control method thereof.
背景技术Background technique
空调器在正常运行过程中，空调室内机风机旋转将引起风噪，以及室内机颤动导致与墙体产生共振引起的嗡嗡声等。现有技术对室内机的除噪音方法主要是出风口粘贴衬垫、优化风扇叶形等，大部分属于被动降噪。然而，空调器所产生的噪音既有高频噪音又有低频噪音，被动降噪对高频噪音的消除能力很强，但对低频噪音却束手无策，在1000Hz或者更低频率的噪音范围内，被动降噪无法起作用，而低频噪音能影响人生理上的听力和神经***，长期存在会严重威胁用户的健康。During the normal operation of the air conditioner, the rotation of the fan of the indoor unit of the air conditioner will cause wind noise, and the vibration of the indoor unit will cause a buzzing sound caused by resonance with the wall. In the prior art, the noise removal methods for indoor units mainly include attaching a liner to the air outlet, optimizing the shape of the fan blade, etc., and most of them are passive noise reduction. However, the noise generated by air conditioners has both high frequency noise and low frequency noise. Passive noise reduction has a strong ability to eliminate high frequency noise, but it is helpless against low frequency noise. In the noise range of 1000 Hz or lower, passive noise reduction Noise reduction can't work, and low-frequency noise can affect human hearing and nervous system, and its long-term existence will seriously threaten the health of users.
相应的，本领域需要一种新的主动降噪空调器及其控制方法来解决现有空调器对低频噪音无法降噪的问题。Correspondingly, there is a need in the art for a new active noise reduction air conditioner and its control method to solve the problem that the existing air conditioner cannot reduce the low frequency noise.
发明内容Summary of the invention
为了解决现有技术中的上述问题，本发明提供了一种主动降噪空调器，包括室外机和室内机，其特征在于，所述室内机还包括依次连接的室内采音器、室内滤波器、室内主动降噪处理模块和室内扬声器，所述室内扬声器为低频扬声器。In order to solve the above-mentioned problems in the prior art, the present invention provides an active noise reduction air conditioner, including an outdoor unit and an indoor unit, characterized in that the indoor unit further includes an indoor sound collector and an indoor filter connected in sequence , An indoor active noise reduction processing module and an indoor speaker, where the indoor speaker is a low frequency speaker.
在上述主动降噪空调器的优选技术方案中，所述低频扬声器为低频HIFI音响。In the preferred technical solution of the above active noise reduction air conditioner, the low frequency speaker is a low frequency HIFI sound.
在上述主动降噪空调器的优选技术方案中，所述室内滤波器为全通滤波器。In the above-mentioned preferred technical solution of the active noise reduction air conditioner, the indoor filter is an all-pass filter.
在上述主动降噪空调器的优选技术方案中，所述室内采音器为麦克风。In the above-mentioned preferred technical solution of the active noise reduction air conditioner, the indoor sound collector is a microphone.
本发明还提供了一种主动降噪空调器，包括室外机和室内机其特征在于，所述室外机还包括依次连接的室外采音器、室外滤波 器、室外主动降噪处理模块和室外扬声器，所述室外扬声器为低频扬声器。The present invention also provides an active noise reduction air conditioner, including an outdoor unit and an indoor unit. The feature is that the outdoor unit further includes an outdoor sound collector, an outdoor filter, an outdoor active noise reduction processing module, and an outdoor speaker connected in sequence , The outdoor speaker is a low frequency speaker.
本发明还提供了一种主动降噪空调器的控制方法，所述主动降噪空调器包括室外机和室内机，其特征在于，所述室内机还包括依次连接的室内采音器、室内滤波器、室内主动降噪处理模块和室内扬声器，所述室内扬声器为低频扬声器，所述控制方法包括：The present invention also provides a control method of an active noise reduction air conditioner. The active noise reduction air conditioner includes an outdoor unit and an indoor unit, and is characterized in that the indoor unit further includes an indoor sound collector and an indoor filter connected in sequence An indoor active noise reduction processing module and an indoor loudspeaker, the indoor loudspeaker is a low frequency loudspeaker, and the control method includes:
S100、控制所述室内采音器收集噪音；S100. Control the indoor sound collector to collect noise;
S200、控制所述室内滤波器处理噪音；S200. Control the indoor filter to process noise;
S300、控制所述室内主动降噪处理模块接收处理过的噪音；S300. Control the indoor active noise reduction processing module to receive processed noise;
S400、控制所述室内主动降噪处理模块实时处理接收到的噪音，并生成降噪音波输出信号，传输至所述室内扬声器。S400: Control the indoor active noise reduction processing module to process the received noise in real time, and generate a noise reduction wave output signal, which is transmitted to the indoor speaker.
在上述主动降噪空调器的控制方法的优选技术方案中，在步骤S400之后，所述控制方法还包括：In the preferred technical solution of the control method of the above active noise reduction air conditioner, after step S400, the control method further includes:
S410、每隔△T1时间，重新返回步骤S100。S410: Return to step S100 again every △T1 time.
本发明还提供了一种主动降噪空调器的控制方法，所述主动降噪空调器包括室外机和室内机，其特征在于，所述室外机还包括依次连接的室外采音器、室外滤波器、室外主动降噪处理模块和室外扬声器，所述室外扬声器为低频扬声器，所述控制方法还包括：The present invention also provides a control method of an active noise reduction air conditioner. The active noise reduction air conditioner includes an outdoor unit and an indoor unit, and is characterized in that the outdoor unit further includes an outdoor sound collector and an outdoor filter connected in sequence. An outdoor active noise reduction processing module and an outdoor loudspeaker, the outdoor loudspeaker is a low frequency loudspeaker, and the control method further includes:
S500、控制所述室外采音器收集噪音；S500. Control the outdoor sound collector to collect noise;
S600、控制所述室外滤波器处理噪音；S600. Control the outdoor filter to process noise;
S700、控制所述室外主动降噪处理模块接收处理过的噪音；S700. Control the outdoor active noise reduction processing module to receive processed noise;
S800、控制所述室外主动降噪处理模块实时处理接收到的噪音，并生成降噪音波输出信号，传输至所述室外扬声器。S800. Control the outdoor active noise reduction processing module to process the received noise in real time, and generate a noise reduction wave output signal, which is transmitted to the outdoor speaker.
在上述主动降噪空调器的控制方法的优选技术方案中，在步骤S800之后，所述控制方法还包括：In the preferred technical solution of the control method of the above active noise reduction air conditioner, after step S800, the control method further includes:
S810、每隔△T2时间，重新返回步骤S500。S810: Return to step S500 again every △T2 time.
在上述主动降噪空调器的控制方法的优选技术方案中，△T2＝20s。In the preferred technical solution of the control method of the above active noise reduction air conditioner, ΔT2=20s.
本领域人员能够理解的是，在本发明的技术方案中，主动降噪空调器包括室外机和室内机，室内机还包括依次连接的室内采音器、室内滤波器、室内主动降噪处理模块和室内扬声器，室内扬声器为低频扬声器。Those skilled in the art can understand that, in the technical solution of the present invention, the active noise reduction air conditioner includes an outdoor unit and an indoor unit, and the indoor unit also includes an indoor sound collector, an indoor filter, and an indoor active noise reduction processing module connected in sequence. And indoor speakers, the indoor speakers are low frequency speakers.
通过上述设置方式，使本发明的空调器能够发出与低频噪音相对应的降噪音波，从而对低频噪音进行抵消，实现降噪的目的。具体地，低频扬声器在现有技术中已经有记载，主要功能为仅能输出低频的音量，低频重放下限低，高频截止频率低因此通过低频扬声器发出的声音的高频反向声波得到衰减，低频扬声器其振动***质量较大，顺性较大，低频扬声器的频率范围可以为20赫兹到1000赫兹。因此，低频扬声器无需通过室内滤波器减小接收到的高频噪音幅度，而通过其自身物理特性的方式避免了高频输出，也避免了高频啸叫，防止高频叠加而增大尖锐的高频噪音的情况发生。Through the above arrangement, the air conditioner of the present invention can emit a noise reduction wave corresponding to the low-frequency noise, thereby canceling the low-frequency noise, and achieving the purpose of noise reduction. Specifically, the low frequency speaker has been documented in the prior art. Its main function is to only output low-frequency volume, the lower limit of low-frequency reproduction is low, and the high-frequency cut-off frequency is low. Therefore, the high-frequency reverse sound waves of the sound emitted by the low-frequency speaker are attenuated. , The low frequency loudspeaker's vibration system is of greater quality and compliance, and the frequency range of the low frequency loudspeaker can be 20 Hz to 1000 Hz. Therefore, the low frequency speaker does not need to reduce the received high-frequency noise amplitude through the indoor filter, but avoids high-frequency output through its own physical characteristics, and also avoids high-frequency howling, preventing high-frequency superposition and increasing sharp high-frequency The noise situation occurs.
附图说明Description of the drawings
下面参照附图来描述本发明的主动降噪空调器及其控制方法。附图中：The active noise reduction air conditioner and its control method of the present invention will be described below with reference to the accompanying drawings. In the attached picture:
图1为本发明的主动降噪空调器的整体结构示意图；Figure 1 is a schematic diagram of the overall structure of the active noise reduction air conditioner of the present invention;
图2为本发明的主动降噪空调器的室内机结构示意图；2 is a schematic diagram of the indoor unit structure of the active noise reduction air conditioner of the present invention;
图3为本发明的主动降噪空调器的室外机结构示意图；3 is a schematic diagram of the outdoor unit structure of the active noise reduction air conditioner of the present invention;
图4为本发明的主动降噪空调器的室内机结构连接关系示意图；4 is a schematic diagram of the structural connection relationship of the indoor unit of the active noise reduction air conditioner of the present invention;
图5为本发明的主动降噪空调器关于室内机的控制方法；Fig. 5 is a control method of the active noise reduction air conditioner with respect to the indoor unit of the present invention;
图6为本发明的主动降噪空调器的室外机结构连接关系示意图；6 is a schematic diagram of the structural connection relationship of the outdoor unit of the active noise reduction air conditioner of the present invention;
图7为本发明的主动降噪空调器关于室外机的控制方法。Fig. 7 is a control method of the outdoor unit of the active noise reduction air conditioner of the present invention.
附体标记列表：List of attached tags:
1、室内机；11、室内采音器；12、室内扬声器；2、室外机；21、室外采音器；22、室外扬声器。1. Indoor unit; 11. Indoor sound collector; 12. Indoor speaker; 2. Outdoor unit; 21. Outdoor sound collector; 22. Outdoor speaker.
具体实施方式Detailed ways
下面参照附图来描述本发明的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本发明的技术原理，并非旨在限制本发明的保护范围。本领域技术人员可以根据需要对其作出调整，以便适应具体的应用场合。例如，尽管说明书中的室内滤波器和室外滤波器是以全通滤波器为例进行说明的，但是本发明显然 还可以使用自适应滤波器或者允许低频噪音通过的低通滤波器，只要能允许低频噪音通过即可。室内滤波器和室外滤波器的选择种类多样，不再一一列举。The preferred embodiments of the present invention will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the indoor filter and outdoor filter in the specification are described with an all-pass filter as an example, the present invention can obviously also use an adaptive filter or a low-pass filter that allows low-frequency noise to pass through, as long as it can allow Low-frequency noise can pass. There are many types of indoor filters and outdoor filters, so I won't list them all.
参照图1、图2和图4，对本发明的主动降噪空调器的一种实施方式进行详细描述。Referring to Figs. 1, 2 and 4, an embodiment of the active noise reduction air conditioner of the present invention will be described in detail.
如图1、图2和图4所示，主动降噪空调器包括室外机2和室内机1，室内机1还包括依次连接的室内采音器11、室内滤波器(在室内机内部，未示出)、室内主动降噪处理模块(在室内机内部，未示出)和室内扬声器12，室内扬声器12为低频扬声器。As shown in Figure 1, Figure 2 and Figure 4, the active noise reduction air conditioner includes an outdoor unit 2 and an indoor unit 1. The indoor unit 1 also includes an indoor sound collector 11 and an indoor filter (in the indoor unit, without (Shown), an indoor active noise reduction processing module (in the indoor unit, not shown), and an indoor speaker 12, which is a low frequency speaker.
其整体工作过程可以通过主动降噪空调器的控制方法来体现，如图5所示，主动降噪空调器的控制方法包括：The overall working process can be embodied by the control method of the active noise reduction air conditioner. As shown in Figure 5, the control method of the active noise reduction air conditioner includes:
S100、控制室内采音器收集噪音；S100, control room sound collector to collect noise;
S200、控制室内滤波器处理噪音；S200, control the indoor filter to deal with noise;
S300、控制室内主动降噪处理模块接收处理过的噪音；S300, the active noise reduction processing module in the control room receives the processed noise;
S400、控制室内主动降噪处理模块实时处理接收到的噪音，并生成降噪音波输出信号，传输至室内扬声器。S400, the control room active noise reduction processing module processes the received noise in real time, and generates a noise reduction wave output signal, which is transmitted to the indoor speaker.
S410、每隔△T1时间，重新返回步骤S100。S410: Return to step S100 again every △T1 time.
本发明的主动降噪空调器首先收集噪音，然后经过室内滤波器处理噪音，使其呈幅值相同、相位成180度相反的声波，在输入室内主动降噪处理模块，经过内部的转换，生成降噪音波输出信号，传输至室内扬声器12，室内扬声器12再发出低频降噪音波，与低频噪音相抵消。The active noise reduction air conditioner of the present invention first collects noise, and then processes the noise through an indoor filter to make it a sound wave with the same amplitude and 180 degrees opposite phase, which is input to the indoor active noise reduction processing module and undergoes internal conversion to generate The noise-reducing wave output signal is transmitted to the indoor speaker 12, and the indoor speaker 12 emits a low-frequency noise-reducing wave to cancel out the low-frequency noise.
对于室内机1而言，最主要的噪音来源便是室内机1的风机在旋转时产生的，而室内机1的风机转速不同，所产生的噪音的频率也不同，其中既有低频噪音又有高频噪音，而高频噪音通过物理的垫棉布或者其它阻隔方案较为容易地可以进行解决，但低频噪音难以阻隔，室内滤波器是可以根据选型而获得过滤高频噪音的功能的，例如选择自适应滤波器，或者选择低通滤波器，但是，由于本发明选择了特殊的室内扬声器12，即室内扬声器12是低频扬声器，其本身便对高频噪音进行了阻隔，因此，此处滤波器的选择便无需刻意选择低通滤波器或者自适应滤波器，而是通过低频扬声器仅可输出低频音波，实现了对室内低频噪音的消除。低频扬声器接收室内主动降噪处理模 块的降噪音波输出信号后，发出与低频部分的噪音相反的低频音波，两者谐波相互叠加后抵消，从而完成了室内机1的低频噪音的清除。For indoor unit 1, the most important source of noise is generated by the fan of indoor unit 1 when it rotates. The frequency of the noise generated by the fan of indoor unit 1 is different at different speeds, including both low-frequency noise and High-frequency noise, and high-frequency noise can be easily solved by physical cotton pads or other blocking solutions, but low-frequency noise is difficult to block. Indoor filters can obtain the function of filtering high-frequency noise according to the selection, such as selection Adaptive filter, or low-pass filter. However, because the present invention selects a special indoor speaker 12, that is, the indoor speaker 12 is a low-frequency speaker, which itself blocks high-frequency noise. Therefore, the filter here There is no need to deliberately choose a low-pass filter or an adaptive filter, but only low-frequency sound waves can be output through the low-frequency speaker, which realizes the elimination of indoor low-frequency noise. After the low frequency speaker receives the noise reduction wave output signal of the indoor active noise reduction processing module, it sends out a low frequency sound wave opposite to the noise of the low frequency part.
上面描述的均为对室内机1的低频噪音进行处理，然而在室外机2上，同样会产生低频噪音，这些噪音能够穿透墙壁或窗户进入室内，因此，消除室外机2的噪音也相当重要，本发明还提供了一种主动降噪空调器，如图1、图3和图6所示，包括室外机2和室内机1，室外机2还包括依次连接的室外采音器21、室外滤波器(在室外机内，未示出)、室外主动降噪处理模块(在室外机内，未示出)和室外扬声器22，室外扬声器22为低频扬声器。The above description deals with the low-frequency noise of the indoor unit 1. However, the outdoor unit 2 also produces low-frequency noise. These noises can penetrate walls or windows and enter the room. Therefore, it is also very important to eliminate the noise of the outdoor unit 2. The present invention also provides an active noise reduction air conditioner, as shown in Figure 1, Figure 3 and Figure 6, comprising an outdoor unit 2 and an indoor unit 1. The outdoor unit 2 also includes an outdoor sound collector 21 and an outdoor A filter (in the outdoor unit, not shown), an outdoor active noise reduction processing module (in the outdoor unit, not shown), and an outdoor speaker 22, which is a low frequency speaker.
其控制方法如图7所示，包括：The control method is shown in Figure 7, including:
S500、控制室外采音器收集噪音；S500, control the outdoor sound collector to collect noise;
S600、控制室外滤波器处理噪音；S600, control the outdoor filter to deal with noise;
S700、控制室外主动降噪处理模块接收处理过的噪音；S700, control the outdoor active noise reduction processing module to receive the processed noise;
S800、控制室外主动降噪处理模块实时处理接收到的噪音，并生成降噪音波输出信号，传输至室外扬声器。S800, control the outdoor active noise reduction processing module to process the received noise in real time, and generate a noise reduction wave output signal, which is transmitted to the outdoor speaker.
S810、每隔△T2时间，重新返回步骤S500。S810: Return to step S500 again every △T2 time.
优选为△T2＝20s。Preferably, ΔT2=20s.
上述结构组成和控制方法与室内机1的构成相似，其原理也相同，因此不再赘述。The above-mentioned structural composition and control method are similar to those of the indoor unit 1, and their principles are also the same, so they will not be repeated.
需要说明的是，上述实施方式仅仅用来阐述本发明的原理，并非旨在与限制本发明的保护范围，在不偏离本发明原理的条件下，本领域技术人员能够对上述结构进行调整，以便本发明能够应用于更加具体的应用场景。It should be noted that the above-mentioned embodiments are only used to illustrate the principles of the present invention, and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above-mentioned structure to facilitate The present invention can be applied to more specific application scenarios.
例如，室内采音器11和室外采音器21为麦克风，当然还可以是其它可以进行音量收集工作的电器元件或者组件等；室内扬声器12和室外扬声器22为低频HIFI音响，当然还可以是其它仅可以传递低频音波的普通音响或者其它设备等，这些都不偏离本发明的原理，因此都将落入本发明的保护范围之内。For example, the indoor sound collector 11 and the outdoor sound collector 21 are microphones, of course, they can also be other electrical components or components that can collect volume; the indoor speaker 12 and the outdoor speaker 22 are low-frequency HIFI speakers, of course, they can also be other Ordinary speakers or other equipment that can only transmit low-frequency sound waves do not deviate from the principle of the present invention, and therefore all fall within the protection scope of the present invention.
例如，由于室内滤波器和室外滤波器无需实现过滤高频音波的功能，因此，室内滤波器和室外滤波器显然还可以是全通滤波器等，只要能够实现将麦克风采集的噪音处理成幅值相同、相位成180度相反的声波即可。For example, since indoor filters and outdoor filters do not need to filter high-frequency sound waves, the indoor filters and outdoor filters can obviously also be all-pass filters, etc., as long as the noise collected by the microphone can be processed into amplitude The same sound waves with the opposite phase of 180 degrees are sufficient.
本领域技术人员可以理解，上述衣物处理设备还包括一些其他公知结构，例如处理器、控制器、存储器等，其中，存储器包括但不限于随机存储器、闪存、只读存储器、可编程只读存储器、易失性存储器、非易失性存储器、串行存储器、并行存储器或寄存器等，处理器包括但不限于CPLD/FPGA、DSP、ARM处理器、MIPS处理器等。为了不必要地模糊本公开的实施例，这些公知的结构未在附图中示出。Those skilled in the art can understand that the above-mentioned clothes treatment device also includes some other well-known structures, such as a processor, a controller, a memory, etc., where the memory includes, but is not limited to, random access memory, flash memory, read-only memory, programmable read-only memory, Volatile memory, non-volatile memory, serial memory, parallel memory or registers, etc. Processors include but are not limited to CPLD/FPGA, DSP, ARM processor, MIPS processor, etc. In order to unnecessarily obscure the embodiments of the present disclosure, these well-known structures are not shown in the drawings.
上述实施例中虽然将各个步骤按照上述先后次序的方式进行了描述，但是本领域技术人员可以理解，为了实现本实施例的效果，不同的步骤之间不必按照这样的次序执行，其可以同时(并行)执行或以颠倒的次序执行，这些简单的变化都在本发明的保护范围之内。Although the various steps are described in the above-mentioned order in the above embodiment, those skilled in the art can understand that, in order to achieve the effect of this embodiment, different steps need not be executed in this order, and they can be performed simultaneously ( Parallel) execution or in reverse order, these simple changes are all within the protection scope of the present invention.
至此，已经结合附图所示的优选实施方式描述了本发明的技术方案，但是，本领域技术人员容易理解的是，本发明的保护范围显然不局限于这些具体实施方式。在不偏离本发明的原理的前提下，本领域技术人员可以对相关技术特征作出等同的更改或替换，这些更改或替换之后的技术方案都将落入本发明的保护范围之内。So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

  1. 一种主动降噪空调器，包括室外机和室内机，其特征在于，所述室内机还包括依次连接的室内采音器、室内滤波器、室内主动降噪处理模块和室内扬声器，所述室内扬声器为低频扬声器。An active noise reduction air conditioner, including an outdoor unit and an indoor unit, is characterized in that the indoor unit further includes an indoor sound picker, an indoor filter, an indoor active noise reduction processing module, and an indoor speaker that are sequentially connected. The speaker is a low frequency speaker.
  2. 根据权利要求1所述的主动降噪空调器，其特征在于，所述低频扬声器为低频HIFI音响。The active noise reduction air conditioner according to claim 1, wherein the low frequency speaker is a low frequency HIFI sound.
  3. 根据权利要求1所述的主动降噪空调器，其特征在于，所述室内滤波器为全通滤波器。The active noise reduction air conditioner according to claim 1, wherein the indoor filter is an all-pass filter.
  4. 根据权利要求1所述的主动降噪空调器，其特征在于，所述室内采音器为麦克风。The active noise reduction air conditioner according to claim 1, wherein the indoor sound collector is a microphone.
  5. 一种主动降噪空调器，包括室外机和室内机，其特征在于，所述室外机还包括依次连接的室外采音器、室外滤波器、室外主动降噪处理模块和室外扬声器，所述室外扬声器为低频扬声器。An active noise reduction air conditioner, comprising an outdoor unit and an indoor unit, wherein the outdoor unit further includes an outdoor sound collector, an outdoor filter, an outdoor active noise reduction processing module, and an outdoor speaker connected in sequence. The speaker is a low frequency speaker.
  6. 一种主动降噪空调器的控制方法，所述主动降噪空调器包括室外机和室内机，其特征在于，所述室内机还包括依次连接的室内采音器、室内滤波器、室内主动降噪处理模块和室内扬声器，所述室内扬声器为低频扬声器，所述控制方法包括：A control method of an active noise reduction air conditioner, the active noise reduction air conditioner includes an outdoor unit and an indoor unit, wherein the indoor unit further includes an indoor sound collector, an indoor filter, and an indoor active air conditioner connected in sequence. A noise processing module and an indoor speaker, the indoor speaker is a low frequency speaker, and the control method includes:
    S100、控制所述室内采音器收集噪音；S100. Control the indoor sound collector to collect noise;
    S200、控制所述室内滤波器处理噪音；S200. Control the indoor filter to process noise;
    S300、控制所述室内主动降噪处理模块接收处理过的噪音；S300. Control the indoor active noise reduction processing module to receive processed noise;
    S400、控制所述室内主动降噪处理模块实时处理接收到的噪音，并生成降噪音波输出信号，传输至所述室内扬声器。S400: Control the indoor active noise reduction processing module to process the received noise in real time, and generate a noise reduction wave output signal, which is transmitted to the indoor speaker.
  7. 根据权利要求6所述的主动降噪空调器的控制方法，其特征在于，在步骤S400之后，所述控制方法还包括：The control method of an active noise reduction air conditioner according to claim 6, characterized in that, after step S400, the control method further comprises:
    S410、每隔△T1时间，重新返回步骤S100。S410: Return to step S100 again every △T1 time.
  8. 一种主动降噪空调器的控制方法，所述主动降噪空调器包括室外机和室内机，其特征在于，所述室外机还包括依次连接的室外采音器、室外滤波器、室外主动降噪处理模块和室外扬声器，所述室外扬声器为低频扬声器，所述控制方法还包括：A control method of an active noise reduction air conditioner, the active noise reduction air conditioner includes an outdoor unit and an indoor unit, characterized in that the outdoor unit further includes an outdoor sound collector, an outdoor filter, and an outdoor active air conditioner connected in sequence. A noise processing module and an outdoor speaker, the outdoor speaker is a low frequency speaker, and the control method further includes:
    S500、控制所述室外采音器收集噪音；S500. Control the outdoor sound collector to collect noise;
    S600、控制所述室外滤波器处理噪音；S600. Control the outdoor filter to process noise;
    S700、控制所述室外主动降噪处理模块接收处理过的噪音；S700. Control the outdoor active noise reduction processing module to receive processed noise;
    S800、控制所述室外主动降噪处理模块实时处理接收到的噪音，并生成降噪音波输出信号，传输至所述室外扬声器。S800. Control the outdoor active noise reduction processing module to process the received noise in real time, and generate a noise reduction wave output signal, which is transmitted to the outdoor speaker.
  9. 根据权利要求8所述的主动降噪空调器的控制方法，其特征在于，在步骤S800之后，所述控制方法还包括：The control method of an active noise reduction air conditioner according to claim 8, wherein after step S800, the control method further comprises:
    S810、每隔△T2时间，重新返回步骤S500。S810: Return to step S500 again every △T2 time.
  10. 根据权利要求9所述的主动降噪空调器的控制方法，其特征在于，△T2＝20s。The control method of an active noise reduction air conditioner according to claim 9, wherein ΔT2=20s.
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