CN108981131B

CN108981131B - Method for reducing noise of loudspeaker in air conditioner remote control process

Info

Publication number: CN108981131B
Application number: CN201810574184.0A
Authority: CN
Inventors: 韩雪; 王子; 文皓; 王慧君
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2018-06-06
Filing date: 2018-06-06
Publication date: 2020-07-03
Anticipated expiration: 2038-06-06
Also published as: WO2019233068A1; CN108981131A

Abstract

The invention discloses a method for reducing the noise of a loudspeaker in the remote control process of an air conditioner. The method comprises the following specific steps: an ultrasonic speaker, a sound sensor and a photosensitive sensor are arranged on an internal machine of the air conditioner, and the ultrasonic speaker, the sound sensor and the photosensitive sensor are all connected with a controller of the air conditioner; and adjusting the sound intensity of the loudspeaker according to the decibel level of the noise in the room detected by the sound sensor and the light intensity in the room detected by the photosensitive sensor, and directionally or regionally transmitting the sound to the user. The method can directionally transmit the response sound of the air conditioner loudspeaker to the ear of the user, and can adjust the sound of the loudspeaker according to the environment of the room, so that the sound of the loudspeaker does not affect other people and can be clearly heard by an operator, the noise of the air conditioner is effectively reduced, and the user experience is greatly improved.

Description

Method for reducing noise of loudspeaker in air conditioner remote control process

Technical Field

The invention relates to the field of air conditioners, in particular to a method for reducing noise of a loudspeaker in the remote control process of an air conditioner.

Background

When controlling the air conditioner, the air conditioner can make a sound to respond to the user operation, if traditional air conditioner can make a sound of "ding", intelligent air conditioner has voice broadcast. Although this function is very feedback to the user's operation, in some quiet situations, such as sleeping, meeting, reading books in a library, etc., the sound greatly interferes with the user's life and the surrounding people's life.

Disclosure of Invention

In order to solve the above problems in the prior art, an object of the present invention is to provide a method for reducing noise of a speaker during a remote control process of an air conditioner, which enables a user to specifically transmit sound of the speaker to an ear of an operator when the user manipulates the air conditioner.

In order to achieve the purpose of the invention, the method adopts the following technical scheme:

a method for reducing the noise of a loudspeaker in the remote control process of an air conditioner is characterized in that an ultrasonic loudspeaker, a sound sensor and a photosensitive sensor are arranged on an inner unit of the air conditioner, and the ultrasonic loudspeaker, the sound sensor and the photosensitive sensor are all connected with a controller of the air conditioner; and adjusting the sound intensity of the loudspeaker according to the decibel level of the noise in the room detected by the sound sensor and the light intensity in the room detected by the photosensitive sensor, and directionally or regionally transmitting the sound to the user.

Further, when the light intensity in the room detected by the photosensitive 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 controller decreases the decibel of the ultrasonic speaker; when the light intensity in the room detected by the photosensitive sensor is lower than 100Lx, if the noise in the room detected by the sound sensor exceeds 50 decibels, the controller of the air conditioner increases the decibel of the ultrasonic speaker, and otherwise, the controller decreases the decibel of the ultrasonic speaker.

Further, the specific steps of directionally transmitting the sound of the speaker to the user are as follows: when a user uses the radio frequency remote controller to control the air conditioner, the controller of the air conditioner takes the remote controller as a label to be positioned, takes the air conditioner as a fixed coordinate reader-writer node, and positions the position of the remote controller, namely the position of the user by utilizing a radio frequency identification positioning technology, so that the directional transmission of the sound of the loudspeaker is realized.

Further, the specific steps of transmitting the sound area of the speaker to the user are: when a plurality of users exist, the infrared device of the air conditioner is utilized to detect that the area where the users are most concentrated is determined as the area propagation range, and the optimal ultrasonic wave beam angle corresponding to the area propagation range is selected according to the length of a room where the air conditioner is installed, so that the area propagation of the sound of the loudspeaker is realized.

The method of the invention can directionally transmit the response sound of the air-conditioning loudspeaker to the ear of the user, and can adjust the sound of the loudspeaker according to the environment of the room, so that the sound of the loudspeaker does not influence other people and can be clearly heard by the operator. The method effectively reduces the noise of the air conditioner and greatly improves the user experience.

Drawings

FIG. 1 is a flow chart of the method of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic illustration of zone propagation for an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following will describe the method of the present invention in further detail with reference to the accompanying drawings.

The invention applies a loudspeaker 2 which produces sound directionally on an air conditioner 1, a sound sensor 3 is arranged on the air conditioner 1 to detect the noise decibel of a room, a photosensitive sensor 4 is arranged to detect the light intensity of the room, and the decibel of the corresponding loudspeaker under different room environments is preset. The sound of the speakers is turned up when the room is noisy or bright and down when the room is quiet or dim.

Specifically, the sound sensor 3 and the photosensor 4 in this embodiment are mounted on a display main board of the air conditioner internal unit, and display related data on a display screen. When the illumination intensity of the room is greater than 100Lx, judging that the user does not have a sleep or rest at the moment, if the noise exceeds 40 decibels, increasing the decibel of the loudspeaker 2, and otherwise, reducing the decibel of the loudspeaker 2; when the illumination intensity of the room is lower than 100Lx, the user is judged to turn off the lamp for sleeping, if the noise is higher than 50 decibels, the decibel of the loudspeaker 2 is increased, and otherwise, the decibel of the loudspeaker 2 is decreased. Therefore, the influence on other people is reduced to the minimum when the room is quiet; when the room is noisy, the operating user can clearly hear the control response sound of the air conditioner.

The sound of the loudspeaker can adopt a directional transmission mode or an area transmission mode:

the sound directional propagation technique is to carry an audible sound wave on an ultrasonic wave and directionally propagate sound by utilizing the directivity of the ultrasonic wave. When the directional transmission is selected, in the process that a user controls the air conditioner by using the radio frequency remote controller, the remote controller is used as a label to be positioned, the air conditioner 1 is used as a fixed coordinate reader-writer node, and the position of the remote controller is positioned by using the RFID (radio frequency identification) positioning technology, namely the position of the user in a room is judged, so that the directional transmission of the sound of the loudspeaker 2 is realized. This function has fine application nature, for example adjust air conditioner 1 after child is asleep, and the head of a family can stand the remote control in the place far away from child a bit, and the sound of speaker 2 will be directional spread to head of a family's ear like this, can not influence child's sleep.

When the selection area is propagated, the method is suitable for a multi-user scene, as shown in fig. 3. According to the optimal ultrasonic wave beam angle corresponding to the preset zone range value of the length of the room provided with the air conditioner 1 (see table 1 below, the length of the room is assumed to be 6 meters), the zone range is determined by using the infrared device 5 of the air conditioner 1 when a plurality of users exist in the room, and the zone in which the users are most concentrated is detected to be determined as a zone propagation range, so that the zone propagation of the sound of the loudspeaker is realized.

TABLE 1 area coverage b and ultrasonic Beam Angle

In relation to (2)

Claims

1. A method for reducing the noise of a loudspeaker in the remote control process of an air conditioner is characterized in that an ultrasonic loudspeaker, a sound sensor and a photosensitive sensor are arranged on an inner unit of the air conditioner, and the ultrasonic loudspeaker, the sound sensor and the photosensitive sensor are all connected with a controller of the air conditioner; according to the noise decibel size in the room that the said sound sensor measures and the light intensity in the room that the said light sensor measures, adjust the sound size of the loudspeaker, and spread the sound area for users, wherein, the concrete step of the area spread is: when a plurality of users exist, detecting that the area where the users are most concentrated is determined as an area propagation range by using an infrared device of the air conditioner, and selecting the optimal ultrasonic wave beam angle corresponding to the area propagation range according to the length of a room where the air conditioner is installed so as to realize the area propagation of the sound of the loudspeaker; the optimal ultrasonic beam angles ∂ corresponding to the region propagation range b are respectively: when b =1m, ∂ =14.25 °; when b =1.5m, ∂ =21.24 °; when b =2m, ∂ =28.07 °; when b =2.5m, ∂ =34.71 °; when b =3m, ∂ =41.11 °; when b =3.5m, ∂ =47.26 °; when b =4m, ∂ =53.13 °; when b =4.5m, ∂ =58.72 °; when b =5m, ∂ =64.01 °.

2. The method of 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 increases the db of the ultrasonic speaker, otherwise decreases the db of the ultrasonic speaker; when the light intensity in the room detected by the photosensitive sensor is lower than 100Lx, if the noise in the room detected by the sound sensor exceeds 50 decibels, the controller of the air conditioner increases the decibel of the ultrasonic speaker, and otherwise, the controller decreases the decibel of the ultrasonic speaker.

3. The method for reducing the noise of the loudspeaker in the remote control process of the air conditioner as claimed in claim 1, wherein the sound sensor and the photosensitive sensor are mounted on a display main board of an air conditioner internal unit.