WO2016197665A1

WO2016197665A1 - Projection implementation method, projection control device, and projector

Info

Publication number: WO2016197665A1
Application number: PCT/CN2016/077382
Authority: WO
Inventors: 贺康
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-01-20
Filing date: 2016-03-25
Publication date: 2016-12-15
Also published as: CN106993170B; CN106993170A

Abstract

A projection implementation method, a projection control device, and a projector. The method comprises: obtaining a sound decibel value and/or a light ray strength value of the environment in which a projector is located; adjusting a current broadcasting sound decibel value of the projector according to the obtained sound decibel value of the environment in which the projector is located, and/or setting a projection light ray strength value of the projector according to the size of the obtained light ray strength value of the environment in which the projector is located; projecting according to the adjusted current broadcasting sound decibel value and/or the set projection light ray strength value. Via the obtained sound decibel value and/or light ray strength value of the environment in which the projector is located, the present invention implements automatic adjustment of the projection broadcasting volume and the projection light ray strength of the projector.

Description

Method for realizing projection, device for projection control and projector

Technical field

This document relates to, but is not limited to, projector control technology, and more particularly to a method for implementing projection, a device for projection control, and a projector.

Background technique

As a relatively common video playback device, projectors are widely used in homes, schools and entertainment venues, and there are many children. When the projector is used as a video playback device for children, it will cause damage to children's vision and hearing without proper settings. Specifically, since the sounds in different video or audio files are different in size, when the projector is played by a power amplifier with a fixed power amplifier ratio, it is easy to cause the volume of the sound to be different when the sound is played, if the projector is fixed at the designated position, The volume can not be adjusted in time, it is easy to hurt children's hearing; if the projector is projection, if the light is too strong, the reflection caused by the projector or the screen will damage the child's vision; if the light is too weak, the projection content is not clear enough, the projector will also affect The child's vision; in addition, the projection resolution is low, the projection screen flickering, etc., which causes the projection to be unclear, will also affect the child's vision.

When the projection display is performed, the stronger the ambient light, the darker the brightness of the image perceived by the human eye; the intensity of the ambient light plays a decisive role in the projection effect, but the ambient light should not be too strong; among them, the illumination is 200-600 The ambient light in the lux range is darker, which is the ideal ambient light brightness, about 50% of the highest brightness; the ambient light in the range of 600-1200 lux is brighter, about 70% of the highest brightness; the civilian projector The projection lamp is generally 1000-4000 lumens; when the projector is used to provide video playback for children, in order to protect their eyes, the brightness of the projection bulb should not be too high or too low, too high brightness intensity makes the child feel glare Too low a light intensity makes it difficult for children to see the video content.

Currently, there is a projector with eye protection function on the market, but it cannot automatically adjust according to the volume and brightness of the content being played. In the related art, by setting the child mode in advance in the projector, the child mode sets an operation function that allows only the child to operate, and shields the function that does not allow the child to operate; when the projector operation function is operated in the child mode , the allowed operation functions are processed, and the shielded operation functions are not responded. Also included in the related art: for video or audio The content of the file is analyzed by audio, and the volume is adjusted by automatic gain, and the volume is adjusted according to the distance between the user and the projector.

In the above method, the influence of the sound in the environment and the intensity of the outside light on the projection playback is not considered, resulting in poor projection playback, which is not conducive to protecting the user's vision and hearing.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide a method for realizing projection, a device for projection control, and a projector, which can adjust a projection lightly according to external sound and light.

Embodiments of the present invention provide a method for controlling a projector, where the method includes:

Obtaining the sound decibel value and/or light intensity value of the environment in which the projector is located;

Adjusting the current playback sound decibel value of the projector according to the sound decibel value of the obtained projector environment; and/or setting the projection light intensity value of the projector according to the size of the acquired light intensity value of the environment of the projector;

Projection is performed based on the currently played sound decibel value obtained by the adjustment and/or the set projection light intensity value.

Optionally, adjusting the projector's current playback sound decibel value includes:

Adjusting the current playback sound decibel value of the projector below a preset volume limit when the sound decibel value of the acquired projector environment is greater than a preset volume limit value;

The set projection light intensity value of the projector includes:

If the acquired light intensity value of the environment in which the projector is located is within the preset light intensity value range, the projector is set by using the obtained light intensity value of the environment in which the projector is located as the projected light intensity value.

Optionally, the projection includes:

The projector is activated according to the currently playing sound decibel value of the projector obtained by the adjustment and/or the projected light intensity value of the set projector.

Optionally, the sound decibel value of the environment in which the projector is obtained includes:

Sampling the ambient sound decibel value by a preset number of times through the sound sensor within a preset duration;

Performing a weighted average calculation on all ambient sound decibel values obtained by sampling to obtain a sample average value;

The sampled average value obtained by the calculation is taken as the sound decibel value of the environment in which the projector is located.

Optionally, the method further includes: before adjusting the current playback sound decibel value of the projector to be below a preset volume limit,

Obtaining the currently played sound decibel value according to the current system playing sound percentage of the projector; or

The decibel value of the currently played sound is obtained by sound sensor detection.

Optionally, the adjusting the projector's current playing sound decibel value below the preset volume limit includes:

Get the percentage of the current system playback sound of the projector;

When the current system playback sound percentage is greater than the system maximum safe volume percentage, adjust the projector's current system playback sound percentage to below the system maximum safe volume percentage so that the projector's current playback sound decibel value is at the preset volume limit. the following.

Optionally, adjusting the projector's current playback sound decibel value to a preset volume limit includes:

During the projection process,

The sound decibel value of the environment where the projector is located is greater than the preset volume limit value, and when the current system playing sound percentage of the projector is greater than the system maximum safe volume percentage, the current system playing sound percentage is adjusted to be below the system maximum safe volume percentage;

When the sound decibel value of the environment where the projector is located is greater than the preset volume limit value, and the percentage of the current system playing sound of the projector is less than or equal to the system maximum safe volume percentage, the current system playing sound percentage is adjusted to the preset temporary The volume percentage so that the projector's current playback sound decibel value is below the preset volume limit.

Optionally, the maximum safe volume percentage of the system includes:

System maximum safe volume percentage dafaultMaxVolume=(X/Y)*MaxDB;

The X is the percentage of the current system playing sound, Y is the sound decibel value of the environment where the projector is located, and MaxDB is the preset volume limit.

Optionally, the preset temporary volume percentage includes:

Preset temporary volume percentage NewVolume=dafaultVolume*(100%-U%);

Wherein, Y is a sound decibel value of the environment, MaxDB is a preset sound limit, and U is a sound Percentage difference, U=(Y-MaxDB)/MaxDB, NewVolume is the temporary volume percentage, and dafaultMaxVolume is the system's maximum safe volume percentage.

Optionally, obtaining the light intensity values of the environment in which the projector is located includes:

The external light intensity is detected by the light sensor, and the detected external light intensity is taken as the light intensity value of the environment where the projector is located.

Optionally, the set projection light intensity value of the projector includes:

During the projection process, when the acquired light intensity value of the environment in which the projector is located changes,

The brightness of the projected light intensity of the projector is compensated according to the obtained light intensity value of the environment where the projector is changed.

On the other hand, an embodiment of the present invention further provides an apparatus for projecting control, including: an acquisition module, an adjustment module, and a projection module;

The acquisition module is configured to obtain a sound decibel value and/or a light intensity value of the environment in which the projector is located;

The adjustment module is configured to adjust the current playback sound decibel value of the projector according to the obtained sound decibel value of the environment of the projector; and/or, set the projection light of the projector according to the size of the light intensity value of the obtained projector environment Intensity value

The projection module is configured to project according to the currently played sound decibel value obtained by the adjustment and/or the set projection light intensity value.

Optionally, the adjustment module is set to,

When the obtained sound decibel value of the environment of the projector is greater than the preset volume limit, the projector's current playback sound decibel value is adjusted below the preset volume limit; and/or,

When the acquired light intensity value of the environment in which the projector is located is within a preset light intensity value range, the projector is set with the light intensity value of the acquired environment of the projector as the projected light intensity value.

Optionally, the projection module is configured to perform projection according to the currently played sound decibel value and the projected light intensity value obtained by the adjustment.

Optionally, the obtaining module is configured to:

Performing a weighted average calculation on all the ambient sound decibel values obtained by sampling to obtain a sample average value;

Calculating the average of the samples obtained as the sound decibel value of the environment in which the projector is located; and/or,

Optionally, the adjustment module is configured to:

Get the percentage of the current system playback sound of the projector;

When the current system playback sound percentage is greater than the system maximum safe volume percentage, adjust the projector's current system playback sound percentage to below the system maximum safe volume percentage so that the projector's current playback sound decibel value is at the preset volume limit. Following; and/or,

Set the projector's projected light intensity value according to the size of the light intensity value of the acquired projector environment.

Optionally, the adjustment module is set to:

During the projection process,

The sound decibel value of the environment where the projector is located is greater than the preset sound limit value, and when the current system playing sound percentage of the projector is greater than the system maximum safe volume percentage, the current system playing sound percentage is adjusted to be below the system maximum safe volume percentage. So that the projector's current playback sound decibel value is below the preset volume limit;

The sound decibel value of the environment where the projector is located is greater than the preset sound limit value, and the percentage of the current system playing sound of the projector is not greater than the maximum safe volume percentage of the system, and the current system playing sound percentage is adjusted to the preset temporary volume percentage. To cause the projector's current playback sound decibel value to be below a preset volume limit; and/or,

Optionally, the adjustment module is configured to:

Performing brightness compensation on the projected light intensity of the projector according to the obtained light intensity value of the environment where the projector is changed;

Adjust the projector's current playback sound decibel value according to the sound decibel value of the acquired projector environment.

Optionally, the maximum safe volume percentage of the system includes:

System maximum safe volume percentage dafaultMaxVolume=(X/Y)*MaxDB

The X is the percentage of the current system playing sound, Y is the sound decibel value of the environment where the projector is located, and MaxDB is the preset sound limit.

Optionally, the preset temporary volume percentage includes:

Preset temporary volume percentage NewVolume=dafaultVolume*(100%-U%);

Wherein, Y is the sound decibel value of the environment, MaxDB is the preset sound limit value, U is the volume difference percentage, U=(Y-MaxDB)/MaxDB, and dafaultMaxVolume is the system maximum safe volume percentage.

In still another aspect, an embodiment of the present invention further provides a projector, including: the device for projection control as described above.

Compared with the related art, the technical solution provided by the present invention includes: obtaining a sound decibel value and a light intensity value of a environment in which the projector is located; and adjusting a current decibel value of the projector according to a sound decibel value of the acquired environment of the projector, The projection light intensity value of the projector is set according to the obtained light intensity value of the environment where the projector is located; and the current playback sound decibel value and the projected light intensity value obtained by the adjustment are projected. The method of the embodiment of the invention realizes the automatic adjustment of the projection playback volume and the projection light intensity of the projector by the obtained sound decibel value and/or the light intensity value of the environment where the projector is located.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a flowchart of a method for implementing projection according to an embodiment of the present invention;

2 is a structural block diagram of an apparatus for projection control according to an embodiment of the present invention;

3 is a flowchart of a method according to a first application example of the present invention;

4 is a flow chart of a method of a second application example of the present invention.

Embodiments of the invention

Embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The server architecture of the embodiment of the present invention is described in detail below by using specific application examples. The application examples are only used to describe the present invention, and are not intended to limit the scope of the present invention.

The embodiment of the invention can not automatically adjust the playing sound according to the external sound decibel value when the projector is projected, and can also automatically adjust the projection brightness according to the external light intensity value, and provide an automatic adjustment of the projector to play. The size, sound, and control method, device, and projector of the projector that automatically adjusts the projector's projected light intensity dynamically.

FIG. 1 is a flowchart of a method for implementing projection according to an embodiment of the present invention. As shown in FIG. 1, the method includes:

Step 11: Obtain a sound decibel value and/or a light intensity value of the environment in which the projector is located;

Step 12: Adjust the current playback sound decibel value of the projector according to the obtained sound decibel value of the environment where the projector is located, and/or set the projection light intensity value of the projector according to the obtained light intensity value of the environment where the projector is located. ;

Step 13. Perform projection according to the currently played sound decibel value and/or the set projection light intensity value obtained by the adjustment;

Optionally, in step 12, adjusting the current playback sound decibel value of the projector includes:

When the sound decibel value of the environment where the projector is located is greater than the preset volume limit, adjust the projector's current playback sound decibel value to below the preset volume limit;

Setting the projector's projected light intensity values includes:

When the obtained light intensity value of the environment of the projector is within the preset light intensity value range, the projector is set by using the obtained light intensity value of the environment where the projector is located as the projected light intensity value;

Optionally, in step 13, performing the projection comprises:

Optionally, obtaining the sound decibel value of the environment where the projector is located in step 11 may include:

The sampled all the ambient sound decibel values are weighted and averaged to obtain the sample, and the sampled average value is taken as the sound decibel value of the environment where the projector is located.

It should be noted that the preset number of times may be two or more times, and the sampling interval may be equal intervals. Separate or non-equal intervals can be set according to empirical values by those skilled in the art.

Optionally, obtaining the light intensity values of the environment where the projector is located in step 11 includes:

The external light intensity is detected by the light sensor, and the detected external light intensity is taken as the light intensity value of the environment in which the projector is located;

In the method of the embodiment of the invention, the ambient light intensity may include the entrance light intensity.

It should be noted that, in the method of the embodiment of the present invention, the preset volume limit may be the maximum volume of the projector in the sound protection mode, and the preset volume limit includes a value customized by the manufacturer.

Optionally, the method of the embodiment of the present invention further includes: adjusting a current playback sound decibel value of the projector to be below a preset volume limit;

Obtain the current playback sound decibel value according to the projector's current system playback sound percentage; or,

The decibel value of the currently playing sound is obtained by the sound sensor detection.

Optionally, the preset light intensity value can be customized by the system, and the preset light intensity value can be defined by the following content:

Scene 1, illumination 200-600 lux range is customized to a darker environment (preferred projection environment), the default value of the preset light intensity value is recommended to be 50% of the maximum brightness of the projector projection bulb;

Scene 2, illumination 600-1200 lux range is customized to a brighter environment, the default value of the preset light intensity value is recommended to be 70% of the maximum brightness of the projector projection bulb;

It should be noted that the default value of the preset preset light intensity value may be adjusted according to the specific environment, for example, according to the projection display distance, the age of the child for the projection play, and the like.

Optionally, the volume and brightness parameters of the projected volume limit, preset light intensity value, etc. can be set by default or re-adjusted.

Since the projection bulb is generally 1000-4000 lumens for civilian use, for children's eye protection, the luminous intensity of the projection bulb cannot be too high or too low, too high brightness intensity makes the child feel glare, too low brightness Intensity tends to make children unable to see the video content. The maximum projection brightness of the default projection bulb that can be set by the method of the embodiment of the present invention is 3000 lumens, and the projection brightness of the projection bulb usually does not exceed 2000 lumens.

Get the percentage of the current system playback sound of the projector;

When the current system playback sound percentage is greater than the system maximum safe volume percentage, adjust the projector's current system playback sound percentage to below the system's maximum safe volume percentage.

During the projection process, the projector sound can be included for a period of time after being played.

When the sound decibel value of the environment where the projector is located is greater than the preset volume limit, and the current system playback sound percentage of the projector is greater than the system maximum safe volume percentage, the current system playback sound percentage is adjusted to be below the system maximum safe volume percentage, Making the projector's current playback sound decibel value below the preset volume limit;

When the sound decibel value of the environment where the projector is located is greater than the preset volume limit, and the current system playing sound percentage of the projector is less than or equal to the system maximum safe volume percentage, the current system playing sound percentage is adjusted to the preset temporary volume percentage to Make the projector's current playback sound decibel value below the preset volume limit.

Optionally, the system maximum safe volume percentage includes:

System maximum safe volume percentage dafaultMaxVolume=(X/Y)*MaxDB

Where X is the percentage of the current system playing sound, Y is the sound decibel value of the environment in which the projector is located, and MaxDB is the preset volume limit.

Optionally, the preset temporary volume percentage includes:

Preset temporary volume percentage NewVolume=dafaultVolume*(100%-U%);

Where U is the percentage of the volume difference, U=(Y-MaxDB)/MaxDB;

Y is the sound decibel value of the environment where the projector is located, MaxDB is the preset sound limit, and dafaultMaxVolume is the system's maximum safe volume percentage.

Optionally, setting the projected light intensity value of the projector includes:

It should be noted that performing the brightness compensation is equivalent to adjusting the projection brightness intensity of the set projector.

Embodiments of the present invention can implement the embodiments of the present invention by means of independently configured projection control devices. The device can be connected to the projector to implement the projection of the method of the embodiment of the invention; the embodiment of the invention can also be directly embedded into the projector to implement projection as a functional module of the projector.

The method of the embodiment of the invention realizes automatic adjustment of the projection playback volume and the projection light intensity of the projector.

Embodiments of the present invention may further include a computer storage medium in which computer executable instructions are stored, and computer executable instructions are used in the above method for implementing projection.

2 is a structural block diagram of an apparatus for projection control according to an embodiment of the present invention. As shown in FIG. 2, the apparatus of the embodiment of the present invention includes: an acquisition module, an adjustment module, and a projection module;

Optionally, the adjustment module is set to,

Adjusting the current playback sound decibel value of the projector to be below a preset volume limit when the sound decibel value of the acquired projector is greater than a preset volume limit; and/or,

Optionally, the get module is set to:

Sampling a predetermined number of ambient sound decibel values by a sound sensor within a preset duration; performing weighted average calculation on all the ambient sound decibel values obtained by sampling to obtain a sample average value; The sound decibel value of the environment in which the projector is located; and/or,

The external light intensity is detected by the light sensor, and the detected external light intensity is used as the cast The light intensity value of the environment in which the camera is located.

Optionally, the adjustment module is set to:

Get the percentage of the current system playback sound of the projector;

Optionally, the adjustment module is set to:

During the projection process,

The sound decibel value of the environment where the projector is located is greater than the preset sound limit value, and the percentage of the current system playing sound is greater than the system maximum safe volume percentage, and the current system playing sound percentage is adjusted to the system maximum safe volume percentage. Hereinafter, the projector's current playback sound decibel value is below a preset volume limit;

The sound decibel value of the environment in which the projector is located is greater than the preset sound limit value, and the percentage of the current system playing sound of the projector is not greater than the maximum safe volume percentage of the system, and the current system playing sound percentage is adjusted to a preset. Temporary volume percentage so that the projector's current playback sound decibel value is below the preset volume limit; and/or,

Optionally, the adjustment module is set to:

Luminous compensation of the projected light intensity of the projector according to the obtained light intensity value of the environment in which the projector is changed; and/or,

Optionally, the system maximum safe volume percentage includes:

System maximum safe volume percentage dafaultMaxVolume=(X/Y)*MaxDB

Wherein, the X is the percentage of the current system playing sound, and Y is the environment of the projector. The sound decibel value, MaxDB is the preset sound limit.

Optionally, the preset temporary volume percentage includes:

Preset temporary volume percentage NewVolume=dafaultVolume*(100%-U%);

Where U is the percentage of the volume difference, U=(Y-MaxDB)/MaxDB, the Y is the sound decibel value of the environment, MaxDB is the preset sound limit, and dafaultMaxVolume is the maximum safe volume percentage of the system.

A projector is also provided in an embodiment of the invention, including the apparatus for projection control as described above.

The embodiments of the present invention are described in detail below by way of specific application examples. The application examples are only used to describe the embodiments of the present invention, and are not intended to limit the scope of the present invention.

Application example 1

FIG. 3 is a flowchart of a method according to a first application example of the present invention. As shown in FIG. 3, the application example is a part for performing volume control during projection, and includes:

Step 31: Turn on the projector and start the projector sound playback;

Step 32: Obtain the percentage of the current system playing sound; this application example can be automatically obtained through setting;

It should be noted that the percentage of the current system playing sound in the application example includes the percentage of the current system playing sound determined by the sound played by the system and the sound of the external environment, and this application example does not distinguish;

Step 33: Determine whether the percentage of the current system playing sound is greater than the maximum safe volume percentage of the system;

In this application example, the system maximum safe volume percentage is the percentage of the maximum volume supported by the software in the operating system corresponding to the sound protection mode.

The formula for calculating the maximum safe volume percentage of the system is:

System maximum safe volume percentage dafaultMaxVolume=(X/Y)*MaxDB;

Optionally, for this application example, the maximum safe volume percentage of the system can be calculated in the following manner:

When leaving the factory, the projector is placed in a static environment, and the X and Y values are measured. The maximum safe volume percentage of the system is obtained according to the calculation formula of the system's maximum safe volume percentage.

Step 34: When the current system playing sound percentage is greater than the system maximum safe volume percentage, adjust the projector's current system playing sound percentage to below the system maximum safe volume percentage until the adjusted current system playing sound percentage is at the preset sound percentage. Within the scope;

Optionally, the range of preset sound percentages may include a range of sound volume acceptable to the human ear.

Step 35: When the current system playing sound percentage is less than or equal to the system's maximum safe volume percentage, no processing is performed.

After the projector sounds for a period of time, that is, during the projection process,

Step 36: During the projection process, obtain the sound decibel value of the environment where the projector is located;

This application example can periodically acquire the sound decibel value of the environment in which the projector is located.

Step 37: determining whether the sound decibel value of the environment in which the projector is located is greater than a preset sound limit; when the sound decibel value of the environment in which the projector is located is less than or equal to the preset sound limit, proceed to step 35;

Step 38: When the sound decibel value of the environment where the projector is located is greater than the preset sound limit value, determine whether the percentage of the current system playing sound of the projector is greater than the maximum safe volume percentage of the system;

Step 39: When the sound decibel value of the environment where the projector is located is greater than the preset sound limit, and the current system playing sound percentage of the projector is greater than the system maximum safe volume percentage, the current system playing sound percentage is adjusted to the system maximum safe volume percentage. Hereinafter, the percentage of the current system playback sound until the adjustment is within the range of the preset sound percentage;

The range of preset sound percentages is the range of sound volume that the human ear can accept;

Step 310: When the sound decibel value of the environment where the projector is located is greater than the preset sound limit, and the current system playing sound percentage of the projector is less than or equal to the system maximum safe volume percentage, the current system playing sound percentage is adjusted to the preset temporary The volume percentage, so that the projector's current playback sound decibel value is below the preset volume limit;

Wherein, the sound decibel value of the environment is greater than the preset sound limit, and the percentage of the current system playing sound of the projector is less than or equal to the maximum safe volume percentage of the system may be sudden by the external sound As a result of the increase, the automatic control device temporarily lowers the current system playback sound percentage to the preset temporary volume percentage within a factory-set period of time. After the time period has elapsed, the temporary volume percentage is restored to the previous percentage of the current system playback sound.

Optionally, the temporary volume percentage is calculated as:

Y’-MaxDB is the higher volume decibel value;

U=(Y’-MaxDB)/MaxDB is the higher volume percentage;

Then the dafaultVolume is also reduced by U percentages year-on-year;

Adjusted NewVolume=dafaultVolume*(100%-U%);

Where Y is the sound decibel value of the environment, MaxDB is the preset sound limit, U is the volume difference percentage, NewVolume is the temporary volume percentage, and dafaultMaxVolume is the system's maximum safe volume percentage.

Optionally, the fine adjustment of the volume control is a process of linearly reducing to the calculated specified volume by performing a plurality of volume adjustments in a short time so that the user cannot perceive a sudden change in volume;

Each time the projector plays an audio or video file, you need to re-calculate the volume value you want to adjust.

Application example 2

4 is a flowchart of a method according to a second application example of the present invention. As shown in FIG. 4, the application example is a projection light intensity control part when performing projection, and includes:

Step 41: detecting the light intensity value of the environment where the projector is located before the projection light bulb is turned on;

Step 42: determining whether the detected light intensity value of the environment where the projector is located is within a preset light intensity value range;

In this application example, the preset range of light intensity values can be customized by the system;

Step 43: If the acquired light intensity value of the environment where the projector is located is not within the preset light intensity value range, the projector is not activated for projection;

When the light intensity value of the environment where the projector is located is not within the preset light intensity value range, this application example can prompt the user to adjust the external light intensity. Specifically, the voice can be prompted. Of course, the indicator light can also be used to remind the user. ;

Not including the maximum value of the range of the preset light intensity value or the minimum value of the range of the preset light intensity value within the preset light intensity value range; correspondingly, the user reduces or brightens the external light intensity, so that the user reduces or brightens the external light intensity The external light intensity is within the preset light intensity range. When adjusting the external light intensity, it can be detected by a fixed number of seconds per interval to determine whether the external light intensity is within the preset light intensity range;

Step 44: If the light intensity value of the environment where the projector is located is within the preset light intensity value range, set the light intensity value of the projector according to the light intensity value of the environment where the projector is located and start the projector.

Optionally, after the ambient light intensity reaches a preset range of light intensity values, the system automatically determines which scene range the light intensity value of the environment in which the projector is located, and then projects according to the agreed brightness.

Projection during projection includes:

Step 45: During the projection process, the brightness of the projected light intensity of the projector is compensated according to the detected light intensity value of the current projector environment;

Optionally, when the current light intensity value of the environment where the projector is located is insufficient or too bright, that is, lower than the lowest value of the customized dark environment in the above step 12 or higher than the highest value of the brighter environment, the brightness compensation measure is performed. .

Optionally, in this application example, the brightness compensation includes: modifying the brightness of the subsequent N frames from the current, and electronically modifying the brightness value of the picture to a fixed safe brightness value to prevent sudden darkening or over-brightness; The light intensity value of the current environment of the projector is re-detected.

In this application example, the method for realizing projection further includes controlling the projection time, and setting a timer in the projector to remind the user to use the eye time (for example, using a voice reminder) to prevent visual fatigue and visual acuity caused by the user viewing the projected content for a long time. Decrease and so on, so as to achieve effective eye protection.

Optionally, this application example can preset the maximum time for each projection;

When the user turns on the projection, the time of projection is timed;

When the time the user watches reaches the maximum time for each projection preset, the user is prompted to project the duration and/or the projection is to be stopped; for example, a voice prompt for stopping the projection is given to the user for a few minutes. The buffer time; if the user manually stops the projection, the timer returns to zero; otherwise, when the timer reaches a maximum eye length, the user will be prompted again to turn off the projector (can be prompted by voice) and the projection is turned off.

The method for realizing projection of this application example further includes:

Lock the projection interface and unlock it by preset operation instructions, for example, by long pressing the icon to unlock;

Automatically download video resources, for example, the projector supports wifi, and can automatically download learning data when connecting to the network via wifi, saving time and simplifying the operation process;

The automatic download method is to automatically download the learning resource from the server to the local through the server address of the preset value, and then update it in the main page of the learning resource; for example, the learning resource that promotes brain development in the frequency band of the alpha wave music.

Application example 3

The apparatus for projection control of the application example may include: an acquisition module, an adjustment module, and a projection module; wherein

The obtaining module is configured to obtain a sound decibel value and a light intensity value of the environment where the projector is located;

The adjustment module is configured to adjust the current playback sound decibel value of the projector according to the obtained sound decibel value of the environment of the projector, and set the projection light intensity value of the projector according to the obtained light intensity value of the environment where the projector is located;

The projection module is configured to project according to the currently played sound decibel value obtained by the adjustment and the set projection light intensity value.

Optionally, the adjustment module is set to,

When the sound decibel value of the obtained projector is greater than the preset volume limit, adjust the projector's current playback sound decibel value to below the preset volume limit;

When the obtained light intensity value of the environment of the projector is within the preset light intensity value range, the projector is set by using the obtained light intensity value of the environment where the projector is located as the projected light intensity value.

Optionally, the get module is set to:

Sampling a predetermined number of ambient sound decibel values by a sound sensor within a preset duration; performing weighted average calculation on all the ambient sound decibel values obtained by sampling to obtain a sample average value; a sound decibel value of the environment in which the projector is located;

The external light intensity is detected by the light sensor, and the detected external light intensity is used as the light intensity value of the environment in which the projector is located.

Optionally, the adjustment module is set to:

Get the percentage of the current system playback sound of the projector;

When the current system playing sound percentage is greater than the system maximum safe volume percentage, the projector's current system playing sound percentage is adjusted to be below the system maximum safe volume percentage, so that the projector's current playing sound decibel value is at a preset volume. Below the limit.

Optionally, the adjustment module is set to:

During the projection process,

The sound decibel value of the environment where the projector is located is greater than the preset sound limit value, and the percentage of the current system playing sound of the projector is not greater than the maximum safe volume percentage of the system, and the current system playing sound percentage is adjusted to the preset temporary volume. Percentage so that the projector's current playback sound decibel value is below the preset volume limit.

Optionally, the adjustment module is set to:

Optionally, the system maximum safe volume percentage includes:

System maximum safe volume percentage dafaultMaxVolume=(X/Y)*MaxDB

The X is the percentage of the current system playing sound, Y is the sound decibel value of the environment in which the projector is located, and MaxDB is the preset sound limit.

Optionally, the preset temporary volume percentage includes:

Preset temporary volume percentage NewVolume=dafaultVolume*(100%-U%);

The apparatus for projection control of this application example may further include:

The module for controlling the projection time, by setting a timer in the projector to remind the user to use the eye time, avoiding the user's visual fatigue caused by long time viewing the projected content, and having adverse effects such as vision loss, thereby achieving the purpose of effectively protecting the eyes;

Optionally, the maximum time for each projection can also be preset;

When the user turns on the projection, the time of projection is timed;

When the time the user watches reaches the maximum time for each projection preset, the user is prompted to project the duration and/or the projection is to be stopped, for example, a voice prompt for stopping the projection, giving the user a buffer time of several minutes, if the user manually The timer is reset to zero when the projection is stopped; otherwise, when the timer reaches the maximum eye protection time, the user is again prompted to turn off the projector and turn off the projection.

The apparatus for projection control of this application example may further include the following parts:

The lock screen module is set to lock the projection interface and unlock by a preset operation instruction, for example, by long pressing the icon to unlock;

The download module is set to automatically download video resources, for example, the projector supports wifi, can be set to connect to the network through wifi, automatically download learning data, eliminating manual download;

The automatic download method is to automatically download the learning resources from the server to the local through the server address of the preset value, and then update in the main page of the learning resource.

In this application example, it is judged whether the playing sound is too large when projecting according to the sound decibel value of the detected projector environment, and then the playing sound intensity is adjusted.

When projecting, the light intensity of the environment in which the projector is located is detected by the light sensor; Set the projection light intensity of the projector according to the light intensity of the environment where the projector is located; in the projection of the projector, the brightness is automatically compensated according to the light intensity of the environment where the current projector is detected, to avoid flicker, and the application example also sets a voice reminder. Vision protection.

By adjusting the length of projection, sleep and timing to start projection, eye protection reminder, lock screen, automatic download of resources and other functions, to avoid the user's long-term viewing of the projection, resulting in visual fatigue, vision loss, the consequences of effective eye protection purpose.

Adjust the volume and light according to the sound level of the video/audio to protect the child's vision hearing;

In this application example, after the user starts the projector, it can be set to automatically start the acquisition module, the adjustment module, the projection time control module, the lock screen module, the download module, and the like. When the user turns off the projection, all the modules are suspended, the projector enters the sleep mode, and the projector enters the working state again when the projection is restarted.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, being executed by a processor and stored in a memory. Programs/instructions to implement their respective functions. The invention is not limited to any specific form of combination of hardware and software. ”

The embodiments disclosed in the present application are as described above, but the descriptions are only for the purpose of understanding the present application, and are not intended to limit the present application, such as the specific implementation method in the embodiments of the present invention. Any modifications and changes in the form and details of the embodiments may be made by those skilled in the art without departing from the spirit and scope of the disclosure. The scope defined by the appended claims shall prevail.

Industrial applicability

The above technical solution realizes automatic adjustment of the playback volume and the projected light intensity of the projector.

Claims

A method of implementing projection, the method comprising:

Obtaining the sound decibel value and/or light intensity value of the environment in which the projector is located;

Adjusting the current playback sound decibel value of the projector according to the sound decibel value of the obtained projector environment; and/or setting the projection light intensity value of the projector according to the size of the acquired light intensity value of the environment of the projector;

Projection is performed based on the currently played sound decibel value obtained by the adjustment and/or the set projection light intensity value.
The method of claim 1 wherein said adjusting a projector's current playing sound decibel value comprises:

Adjusting a current decibel value of the projector to be below a preset volume limit when the sound decibel value of the acquired projector is greater than a preset volume limit;

The set projection light intensity value of the projector includes:

When the acquired light intensity value of the environment in which the projector is located is within a preset light intensity value range, the projector is set with the light intensity value of the acquired environment of the projector as the projected light intensity value.
The method of claim 2 wherein said projecting comprises:

The projector is activated according to the currently playing sound decibel value of the projector obtained by the adjustment and/or the projected light intensity value of the set projector.
The method according to any one of claims 1 to 3, wherein the obtaining the sound decibel value of the environment in which the projector is located comprises:

Sampling a predetermined number of ambient sound decibel values by a sound sensor during a preset duration;

Performing a weighted average calculation on all the ambient sound decibel values obtained by sampling to obtain an average value;

The sampled average value obtained by the calculation is taken as the sound decibel value of the environment in which the projector is located.
The method of claim 2, further comprising: adjusting a projector's currently playing sound decibel value to below a preset volume limit,

Obtaining the currently played sound decibel according to the current system playing sound percentage of the projector Value; or,

The decibel value of the currently played sound is obtained by sound sensor detection.
The method of claim 2, wherein said adjusting a projector's current playing sound decibel value to a preset volume limit comprises:

Get the percentage of the current system playback sound of the projector;

When the current system playing sound percentage is greater than the system maximum safe volume percentage, the projector's current system playing sound percentage is adjusted to be below the system maximum safe volume percentage, so that the projector's current playing sound decibel value is preset. Below the volume limit.
The method of claim 2, wherein said adjusting a projector's current playing sound decibel value to a preset volume limit comprises:

During the projection process,

The sound decibel value of the environment in which the projector is located is greater than the preset volume limit value, and when the percentage of the current system playing sound of the projector is greater than the maximum safe volume percentage of the system, the current system playing sound percentage is adjusted to the system maximum security. Below the volume percentage, so that the projector's current playback sound decibel value is below the preset volume limit;

The sound decibel value of the environment where the projector is located is greater than the preset volume limit value, and when the percentage of the current system playing sound of the projector is less than or equal to the system maximum safe volume percentage, the current system playing sound percentage is adjusted to the pre-predetermined Set the temporary volume percentage so that the projector's current playback sound decibel value is below the preset volume limit.
The method of claim 6 or 7, wherein the system maximum safe volume percentage comprises:

System maximum safe volume percentage dafaultMaxVolume=(X/Y)*MaxDB

The X is the percentage of the current system playing sound, Y is the sound decibel value of the environment where the projector is located, and MaxDB is the preset volume limit.
The method of claim 7, wherein the preset temporary volume percentage comprises:

Preset temporary volume percentage NewVolume=dafaultVolume*(100%-U%);

Where U is the percentage of the volume difference, U=(Y-MaxDB)/MaxDB;

The Y is the sound decibel value of the environment in which the projector is located, MaxDB is the preset sound limit, and dafaultMaxVolume is the maximum safe volume percentage of the system.
The method according to any one of claims 1 to 3, wherein the obtaining the light intensity value of the environment in which the projector is located comprises:

The external light intensity is detected by the light sensor, and the detected external light intensity is taken as the light intensity value of the environment where the projector is located.
The method according to claim 10, wherein setting the projected light intensity value of the projector comprises:

During the projection process, when the acquired light intensity value of the environment in which the projector is located changes,

The brightness of the projected light intensity of the projector is compensated according to the obtained light intensity value of the environment where the projector is changed.
A device for projection control, the device comprising: an acquisition module, an adjustment module, and a projection module; wherein

The acquisition module is configured to obtain a sound decibel value and/or a light intensity value of the environment in which the projector is located;

The adjustment module is configured to adjust the current playback sound decibel value of the projector according to the obtained sound decibel value of the environment of the projector; and/or, set the projection light of the projector according to the size of the light intensity value of the obtained projector environment Intensity value

The projection module is configured to project according to the currently played sound decibel value obtained by the adjustment and/or the set projection light intensity value.
The apparatus of claim 12, wherein the adjustment module is configured to

Adjusting the current playback sound decibel value of the projector to be below a preset volume limit when the sound decibel value of the acquired projector is greater than a preset volume limit; and/or,

When the acquired light intensity value of the environment in which the projector is located is within a preset light intensity value range, the projector is set with the light intensity value of the acquired environment of the projector as the projected light intensity value.
The apparatus of claim 12, wherein the projection module is configured to activate the projector based on the currently played sound decibel value and the projected light intensity value obtained by the adjustment.
The apparatus according to any one of claims 12 to 14, wherein the acquisition module is configured to:

Sampling a predetermined number of ambient sound decibel values by a sound sensor during a preset time period; performing weighted average calculation on all the ambient sound decibel values obtained by sampling to obtain a sample average value; Calculating the average of the samples obtained as the sound decibel value of the environment in which the projector is located; and/or,

The external light intensity is detected by the light sensor, and the detected external light intensity is used as the light intensity value of the environment in which the projector is located.
The apparatus of claim 13 wherein said adjustment module is configured to:

Get the percentage of the current system playback sound of the projector;

When the current system playing sound percentage is greater than the system maximum safe volume percentage, the projector's current system playing sound percentage is adjusted to be below the system maximum safe volume percentage, so that the projector's current playing sound decibel value is at a preset volume. Below the limit; and/or,

Set the projector's projected light intensity value according to the size of the light intensity value of the acquired projector environment.
The apparatus of claim 13 wherein said adjustment module is configured to:

During the projection process,

The sound decibel value of the environment in which the projector is located is greater than the preset sound limit value, and when the percentage of the current system playing sound of the projector is greater than the maximum safe volume percentage of the system, the current system playing sound percentage is adjusted to the system maximum security. Below the volume percentage, so that the projector's current playback sound decibel value is below the preset volume limit;

The sound decibel value of the environment in which the projector is located is greater than the preset sound limit value, and the percentage of the current system playing sound of the projector is not greater than the maximum safe volume percentage of the system, and the current system playing sound percentage is adjusted to a preset. Temporary volume percentage so that the projector's current playback sound decibel value is below the preset volume limit; and/or,

Set the projector's projected light intensity value according to the size of the light intensity value of the acquired projector environment.
The apparatus according to any one of claims 12 to 14, wherein the adjustment module is configured to:

During the projection process, when the acquired light intensity value of the environment of the projector changes, the brightness of the projected light intensity of the projector is compensated according to the obtained light intensity value of the environment where the projector is changed; and/or,

Adjust the current playback sound of the projector according to the sound decibel value of the acquired projector environment Bayesian value.
The apparatus of claim 16 or 17, wherein said system maximum safe volume percentage comprises:

System maximum safe volume percentage dafaultMaxVolume=(X/Y)*MaxDB

The X is the percentage of the current system playing sound, Y is the sound decibel value of the environment in which the projector is located, and MaxDB is the preset sound limit.
The apparatus according to claim 16 or 17, wherein the preset temporary volume percentage comprises:

Preset temporary volume percentage NewVolume=dafaultVolume*(100%-U%);

Where U is the percentage of the volume difference, U=(Y-MaxDB)/MaxDB, the Y is the sound decibel value of the environment, MaxDB is the preset sound limit, and dafaultMaxVolume is the maximum safe volume percentage of the system.
A projector comprising a projection control device according to any of claims 12-20.