WO2019233068A1

WO2019233068A1 - Method for reducing loudspeaker noise in process of remotely controlling air conditioner

Info

Publication number: WO2019233068A1
Application number: PCT/CN2018/119701
Authority: WO
Inventors: 韩雪; 王子; 文皓; 王慧君
Original assignee: 珠海格力电器股份有限公司
Priority date: 2018-06-06
Filing date: 2018-12-07
Publication date: 2019-12-12
Also published as: CN108981131B; CN108981131A

Abstract

Provided is a method for reducing loudspeaker noise in the process of remotely controlling an air conditioner, wherein the specific steps are as follows: mounting an ultrasonic loudspeaker (2), a sound sensor (3) and a photosensitive sensor (4) on an inner unit of an air conditioner (1), wherein the ultrasonic loudspeaker (2), the sound sensor (3) and the photosensitive sensor (4) are all connected to a controller of the air conditioner (1); and according to the decibel size of noise in a room detected by the sound sensor (3) and the light intensity in the room detected by the photosensitive sensor (4), adjusting the sound volume of the ultrasonic loudspeaker (2), and directionally or regionally transmitting the sound to a user. According to the method, a response sound of the loudspeaker (2) of the air conditioner can be directionally transmitted to the ears of a user, and the sound volume of the loudspeaker (2) can be adjusted according to a room environment, so that the sound of the loudspeaker (2) will not affect others, and can also be clearly heard by an operator, thereby effectively reducing the noise of the air conditioner, and greatly improving the user experience.

Description

Method for reducing loudspeaker noise during air conditioner remote control

Related applications

This application claims priority from a Chinese patent application filed on June 6, 2018, with application number 201810574184.0, entitled "A Method for Reducing Speaker Noise in the Air Conditioning Remote Control Process", which is hereby incorporated by reference in its entirety.

Technical field

The present application relates to the field of air conditioners, and in particular, to a method for reducing loudspeaker noise during remote control of an air conditioner.

Background technique

When the air conditioner is controlled, the air conditioner will emit a sound in response to user operations. For example, the traditional air conditioner will emit a "ding" sound, and the smart air conditioner will have a voice broadcast. Although this function has a good feedback on the user's operation, in some quiet places, such as sleeping, meetings, reading in the library, etc., this kind of noise has caused great interference to the lives of users and people around them.

Summary of the Invention

In order to solve the above problems in the prior art, an object of the present application is to provide a method for reducing speaker noise during remote control of an air conditioner, so that a user can specifically transmit the sound of the speaker to an operator's ear when operating the air conditioner. .

In order to achieve the purpose of the above application, the technical solution adopted in this application is as follows:

A method for reducing speaker noise during remote control of an air conditioner. An ultrasonic speaker, a sound sensor, and a light sensor are installed on an internal unit of the air conditioner. The ultrasonic speaker, the sound sensor, and the light sensor are all connected to a controller of the air conditioner. The noise decibel size in the room detected by the sound sensor and the light intensity in the room detected by the light sensor adjust the sound size of the speaker and propagate the sound to the user in the direction or area.

Optionally, when the light intensity in the room detected by the light sensor is greater than 100Lx, if the noise in the room detected by the sound sensor exceeds 40 decibels, the controller of the air conditioner increases the decibel of the ultrasonic speaker, otherwise the decibel of the ultrasonic speaker is lowered ; When the light intensity in the room detected by the light sensor is less than 100Lx, if the noise in the room detected by the sound sensor exceeds 50 decibels, the controller of the air conditioner raises the decibel of the ultrasonic speaker, otherwise lowers the decibel of the ultrasonic speaker.

Optionally, the specific steps of directing the sound of the speaker to the user are: when the user uses an RF remote control to control the air conditioner, the controller of the air conditioner uses the remote control as the label to be positioned, the air conditioner as a fixed coordinate reader node, and uses radio frequency Identify positioning technology to locate the remote control, that is, the position of the user, so as to achieve the directional propagation of the speaker sound.

Optionally, the specific steps of transmitting the sound area of the speaker to the user are: when there are multiple users, using the infrared device of the air conditioner, the area where the user is most concentrated is detected as the area transmission range, and it is selected according to the length of the room where the air conditioner is installed The optimal ultrasonic beam angle corresponding to the area propagation range, thereby realizing the area propagation of the speaker sound.

The method for reducing loudspeaker noise in the remote control process of an air conditioner can direct the response sound of the air conditioner speaker to the user's ear, and can adjust the size of the speaker sound according to the room environment, so that the sound of the speaker does not affect other people. Can also be heard clearly by the operator. The method for reducing loudspeaker noise during remote control of an air conditioner according to the present application effectively reduces the noise of the air conditioner and greatly improves the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application or the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely It is an embodiment of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the disclosed drawings without paying creative labor.

FIG. 1 is a flowchart of a method for reducing speaker noise during a remote control of an air conditioner according to an embodiment of the present application; FIG.

2 is a schematic structural diagram of an air conditioner according to an embodiment of the present application;

FIG. 3 is a schematic diagram of area propagation according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

Please refer to FIGS. 1-2. In this application, a directional acoustic ultrasonic speaker 2 is applied to an air conditioner 1, and a sound sensor 3 is installed on the air conditioner 1 to detect the noise level in the room. A light sensor 4 is installed to detect the light intensity of the room, and Set the decibel size of the corresponding speakers in different room environments. When the room is noisy or bright, turn up the speaker sound, and when the room is quiet or dim, turn down the speaker sound.

Specifically, the sound sensor 3 and the light sensor 4 in this embodiment are installed on a display main board of an air conditioner, and display related data on a display screen. When the light intensity of the room is greater than 100Lx, it is judged that the user is not sleeping at this moment. If the noise exceeds 40 decibels, increase the decibel of the ultrasonic speaker 2; otherwise, reduce the decibel of the ultrasonic speaker 2; Turn off the lights and go to bed. If the noise is higher than 50 dB, increase the decibel of the ultrasonic speaker 2; otherwise, decrease the decibel of the ultrasonic speaker 2. In this way, it is guaranteed that when the room is quiet, the influence on other people is minimized; when the room is noisy, the operating user can clearly hear the control response of the air conditioner.

The sound of the speakers can be directional or regional:

The directional propagation technology of sound is to mount audible sound waves on ultrasonic waves and use the directivity of ultrasonic waves to propagate sound in a directional manner. When directional transmission is selected, the user uses the remote control as the label to be positioned, the air conditioner 1 as a fixed coordinate reader node, and uses RFID (radio frequency identification) positioning technology to locate the remote control. That is, the position of the user in the room is determined, and the directional propagation of the sound of the ultrasonic speaker 2 is realized. This function has good applicability, such as adjusting the air conditioner 1 after the child is asleep, the parent can stand remote from the child to remote control, so that the sound of the ultrasonic speaker 2 will be transmitted to the parents' ears without affecting To the child's sleep.

Refer to Figure 3, which is suitable for multi-user scenarios when selecting area propagation. The optimal ultrasonic beam angle corresponding to the preset area range value of the length of the room where the air conditioner 1 is installed (see Table 1 below, assuming the room length is 6 meters). The area range is determined by using multiple users in the room By using the infrared device 5 of the air conditioner 1, the area where the user is most concentrated is detected as the area propagation range, thereby realizing the area propagation of the speaker sound.

Table 1 Area range b and ultrasonic beam angle

Relationship

The embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts between the embodiments, refer to each other.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, this application will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

A method for reducing noise of a speaker in a remote control process of an air conditioner, characterized in that an ultrasonic speaker, a sound sensor, and a light sensor are installed on an internal unit of the air conditioner, and the ultrasonic speaker, the sound sensor, and the light sensor are all connected to a controller of the air conditioner; Adjusting the sound size of the ultrasonic speaker according to the size of the noise decibel in the room detected by the sound sensor and the light intensity in the room detected by the light sensor, and propagating the sound to the user in the direction or area.
The method for reducing loudspeaker noise during remote control of an air conditioner according to claim 1, wherein, when the light intensity in the room detected by the light sensor is greater than 100Lx, if the noise in the room detected by the sound sensor exceeds 40 dB The controller of the air conditioner raises the decibel of the ultrasonic speaker, otherwise lowers the decibel of the ultrasonic speaker; when the light intensity in the room detected by the light sensor is lower than 100Lx, if the sound sensor detects If the noise in the room exceeds 50 decibels, the controller of the air conditioner raises the decibels of the ultrasonic speaker, otherwise decreases the decibels of the ultrasonic speaker.
The method for reducing speaker noise during remote control of an air conditioner according to claim 1, wherein the specific step of directionally propagating the sound of the ultrasonic speaker to the user is: when the user controls the air conditioner using a radio frequency remote control, all The controller of the air conditioner uses the remote controller as a label to be positioned, and uses the air conditioner as a fixed coordinate reader node, and uses radio frequency identification positioning technology to locate the remote controller, that is, the position of the user, thereby realizing the Directional transmission of sound from ultrasonic speakers.
The method for reducing loudspeaker noise during remote control of an air conditioner according to claim 1, wherein the specific step of transmitting the sound area of the ultrasonic speaker to users is: when there are multiple users, using the air conditioner's The infrared device detects the area where the user is most concentrated and determines the area propagation range, and selects the optimal ultrasonic beam angle corresponding to the area propagation range according to the length of the room where the air conditioner is installed, thereby realizing the area propagation of the sound of the ultrasonic speaker.
The method for reducing loudspeaker noise during remote control of an air conditioner according to claim 4, wherein the optimal ultrasonic beam angle corresponding to the area range b of the area propagation
They are:

When b = 1m,
When b = 1.5m,
When b = 2m,
When b = 2.5m,
When b = 3m,
When b = 3.5m,
When b = 4m,
When b = 4.5m,
When b = 5m,
The method for reducing speaker noise during remote control of an air conditioner according to claim 1, wherein the sound sensor and the light sensor are installed on a display main board of the internal unit of the air conditioner.