CN102340584B - Method and device for adjusting sound volume - Google Patents

Abstract

The invention discloses a method and device for adjusting sound volume, which are used for overcoming the defect that behavioral information of a user cannot be accurately captured in a poor environment in a non-contact adjusting mode provided by the prior art, thereby accurate adjustment of the sound volume cannot be realized. The method comprises the following steps of: detecting controllable active light radiating on a light sensing unit by using the light sensing unit arranged on a terminal, wherein the sound volume of the terminal is prepared for adjustment; determining the size information of an angle of the controllable light relative to the light sensing unit; and adjusting the sound volume according to the size information of the angle.

Description

Volume adjustment method and device

technical field

The present invention relates to the technical field of communications, in particular to a volume adjustment method and device.

Background technique

In the prior art, when the user uses the terminal to adjust the volume of the terminal, generally two adjustment methods can be used: a contact adjustment method and a non-contact adjustment method.

The touch adjustment method realizes the adjustment of the volume through the contact between the user and the terminal. For example, the user can use a touch pen or finger to click and slide on the terminal screen with an inductive touch screen to realize the volume adjustment operation. Non-contact adjustment mode, that is, the user does not need to touch the terminal with fingers or touch pens, but provides the terminal with information that the terminal can sense remotely, so that the terminal can adjust the volume according to the sensed information.

Regarding the non-contact adjustment method, existing methods propose to use a camera of a terminal to capture gesture information made by a user, so as to adjust the volume according to different gesture information. The specific process of this method is shown in Figure 1. Camera 1 and camera 2 are like the two eyes of the user, with a certain distance between them. Cameras 1 and 2 collect image information including gesture information made by the user, and The gesture information is identified and tracked from the collected image information, and then the gesture information is three-dimensionally reconstructed and output to the volume adjustment execution application programming interface API in the terminal to complete the adjustment of the volume. The disadvantage of this method is that multiple cameras need to be installed on the terminal to capture gesture information, resulting in a large space occupied by the terminal, and in a dark environment, a light source needs to be provided for lighting, otherwise gesture information cannot be captured.

From the introduction of the above solutions provided by the prior art, it can be seen that the non-contact adjustment method provided by the prior art is easily affected by environmental factors, and it is difficult to accurately capture user behavior information in a poor environment, so that it is impossible to make accurate adjustments. Flaws in volume adjustment.

Contents of the invention

The present invention provides a volume adjustment method and device to solve the defect of the non-contact adjustment method provided by the prior art that it is difficult to accurately capture the user's behavior information in a poor environment, so that precise volume adjustment cannot be made.

The present invention adopts following technical scheme:

A volume adjustment method, comprising: a terminal to be adjusted uses a light sensing unit arranged on the terminal to detect the controllable active light irradiated on the light sensing unit; and determining the detected controllable active light information about the angle of the active light relative to the light sensing unit, and adjust the volume according to the information about the angle.

Preferably, the controllable active light beam is a parallel controllable active light beam with a circular cross section, and the information for determining the angle of the detected controllable active light beam relative to the light sensing unit is specifically:

Determine the diameter length value of the circle; when it is determined that the detected section of the controllable active light beam irradiated on the light sensing unit is an ellipse, determine the long axis length value of the ellipse; according to the The length value of the major axis and the value of the diameter length determine the size information of the angle of the controllable active light beam relative to the light sensing unit.

Preferably, the angle is the minimum angle that the plane bypasses when the plane where the light sensing unit is located is rotated clockwise to a position parallel to the controllable active light; and according to the controllable The size information of the angle of the active light relative to the light sensing unit is used to adjust the volume, specifically including:

determining the difference between the minimum angle and an angle of ninety degrees, and determining the number of minimum unit angles included in the angle difference according to the angle difference and the preset minimum unit angle for adjusting the volume; Determine the preset volume minimum adjustment gear corresponding to the minimum unit angle, and determine the product value obtained by multiplying the number by the minimum adjustment gear according to the number as the volume that needs to be adjusted gear position; compare the size relationship between the minimum angle and ninety degrees, and adjust the volume according to the determined gear position according to the comparison result.

Preferably, according to the comparison result, the volume is adjusted according to the determined gear position, which specifically includes: when the comparison result is that the minimum angle is greater than ninety degrees, increasing the volume to the determined gear position; As a result, when the minimum angle is less than ninety degrees, the volume is lowered by the determined gear.

Preferably, the light sensing unit is a light sensing touch screen, and the controllable active light is emitted by a touch pen corresponding to the terminal.

Preferably, the controllable active light is laser light or infrared light.

A volume adjustment device, comprising: a light sensing unit, used to detect the controllable active light irradiated on the light sensing unit; a determination unit, used to determine the controllable active light detected by the light sensing unit relative to Information on the size of the angle of the light sensing unit; a volume adjustment unit, configured to adjust the volume according to the information on the size of the angle determined by the determining unit.

The beneficial effects of the present invention are as follows:

In the embodiment of the present invention, the controllable active light irradiated on the light sensing unit is detected by using the light sensing unit arranged on the terminal, so that according to the angle information of the detected controllable active light relative to the light sensing unit To realize the adjustment of the volume, since the controllable active light beam is generally difficult to be disturbed by environmental factors, such a non-contact adjustment method can accurately capture the controllable active light in a poor environment, thereby further Accurately adjust the volume by using the size information of the angle between the controllable active light and the light sensing unit.

Description of drawings

FIG. 1 is a schematic flow chart of adjusting the volume by capturing gesture information provided in the prior art;

FIG. 2 is a schematic flowchart of a volume adjustment method provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of a controllable active light beam irradiating on the light sensing unit in parallel and obliquely on the light sensing unit;

Fig. 4a is a schematic diagram of a conical controllable active light beam irradiating on an LCD screen to form a circular irradiation range with point O as the center;

Fig. 4b is a schematic diagram of an elliptical irradiation range centered on points O1 and O2 formed by conical controllable active light beams irradiating on an LCD screen;

Fig. 4c is a schematic diagram of a specific execution process of step 23 of the volume adjustment method provided by the embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a volume adjustment device provided by an embodiment of the present invention.

Detailed ways

In order to solve the defect of the non-contact adjustment method provided by the prior art that it is difficult to accurately capture the user's behavior information in a poor environment, so that it is impossible to make precise volume adjustments, the embodiment of the present invention provides a solution for volume adjustment Detecting the controllable active light through the terminal provided with the light sensing unit, so as to realize non-contact volume adjustment according to the angle information of the detected controllable active light relative to the light sensing unit. Specifically, the embodiment of the present invention firstly provides a volume adjustment method, the specific flowchart of the method is shown in Figure 2, including the following steps:

Step 21: The terminal whose volume is to be adjusted uses the light sensing unit installed on the terminal to detect the controllable active light irradiated on the light sensing unit. In the embodiment of the present invention, the controllable active light used can be But not limited to laser light or infrared rays;

Step 22, determining the size information of the detected controllable active light relative to the angle of the light sensing unit;

Step 23, adjust the volume according to the determined size information of the angle.

In the embodiment of the present invention, the controllable active light beam can be a conical controllable active light beam with a circular cross section emitted from the light source, or it can be a parallel controllable active light beam. Taking a parallel controllable active beam with a circular cross-section as an example, the process of determining the size information of the detected controllable active light relative to the angle of the light sensing unit may specifically include the following steps:

First, the terminal determines the diameter and length of the circular cross-section of the parallel controllable active light beam. There are multiple ways to determine the diameter and length. When the stylus corresponding to the terminal is sent out, the diameter and length of the circular cross-section of the controllable active light beam emitted by the stylus can be preset as a fixed value, and the fixed value can be fixed by means of an agreement with the terminal. The value is agreed with the terminal, so that the terminal can know the diameter and length value, or the terminal can also determine the diameter and length value through detection, for example, when the light sensing unit detects that the controllable active beam is irradiated on the light sensing unit When the section above is a circle, determine the diameter and length of the circle;

Then, when it is determined that the cross-section of the detected controllable active light beam irradiated on the light sensing unit is an ellipse, determine the length value of the major axis of the ellipse;

Finally, according to the determined long axis length value and the diameter length value, determine the size information of the angle of the controllable active light beam relative to the light sensing unit. For example, taking the controllable active light beam as an example of a parallel controllable active light beam with a circular cross section, the schematic diagram of the controllable active light beam irradiating on the light sensing unit in parallel and obliquely on the light sensing unit is shown in Figure 3 Show. In this figure 3, the vertically irradiated parallel steerable active beam is represented by a straight line, while the obliquely irradiated parallel steerable active beam is represented by a dotted line, wherein the diameter of the cross-sectional circle of the parallel steerable active beam is a , and when the parallel controllable active light beam irradiates obliquely on the light sensing unit so that the cross-section irradiated on the light sensing unit is an ellipse, the length of the major axis of the ellipse can be determined by the detection of light by the light sensing unit Assuming that the major axis length of the determined ellipse is b as shown in FIG. 3 . According to Fig. 3, it can be seen that according to the method provided by the embodiment of the present invention, what needs to be determined is the value of the angle β, and there is a relationship between the angle β and the angle α as shown in the following formula [1]:

β=180°-α [1]

Since the angle α can be regarded as an angle in the right triangle shown in Figure 3, and in the right triangle, there is also the relationship shown in the following formula [2]:

$\mathrm{<span\; class="notranslate">\; cos</span>}\mathrm{<span\; class="notranslate">\; \&alpha;</span>}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; a</span>}}{\mathrm{<span\; class="notranslate">\; b</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; [</span>\mathrm{<span\; class="notranslate">\; 2</span>}<span\; class="notranslate">\; ]</span>$

According to the above formulas [1] and [2], the following formula [3] can be obtained:

Thus, according to the formula [3], the value of the angle β is calculated.

Of course, the embodiment of the present invention only takes the relatively simple case that the controllable active light beam is a parallel controllable active light beam with a circular cross-section as an example to illustrate how to determine the detected controllable active light beam relative to the light beam. For information about the size of the angle of the sensing unit, those skilled in the art can understand that the cross-section of the parallel controllable active beam may not be circular, or the controllable active beam may not be a parallel controllable active beam, but for Such a controllable active light beam can also calculate the size information of the angle of the detected controllable active light beam relative to the light sensing unit through the above-mentioned similar method, which will not be repeated here.

In addition, in the above example, the adjustment of the volume is realized by determining the size of the angle β, but in fact, the adjustment of the volume can also be realized directly by determining the size of the angle α. The implementation process of these two cases is relatively similar, so it will not be repeated here.

For the specific implementation of this program, the inventor has carried out several tests:

When the stylus is used as the light source to emit a conical controllable active light beam to irradiate the terminal equipped with a light-sensitive touch liquid crystal display (LCD) screen, a circular irradiation range with point O as the center shown in Figure 4a will be formed. (In Fig. 4a, the dotted line is used to represent the controllable active light emitted by the stylus), and when the irradiation position of the light beam is changed, the conical controllable active light beam will form a pattern when it is irradiated on the LCD screen. 4b shows an elliptical irradiation range centered on point O1 or O2.

Taking the light at the center of the conical controllable active beam as an example, when the controllable active beam is vertically irradiated on the LCD screen, according to the clockwise rotation direction, the position of the light on the plane of the LCD screen relative to the center position The minimum angle between them is 90°; and when the controllable active light beam irradiates obliquely on the LCD screen, according to the clockwise rotation direction, the minimum angle between the plane where the LCD screen is located and the position of the light at the center position is An obtuse angle greater than 90° (that is, the angle 1 in Figure 4b); when the controllable active light beam is irradiated obliquely downward on the LCD screen, according to the clockwise rotation direction, the plane where the LCD screen is located is relative to the light at the center position The smallest angle between positions is an acute angle less than 90° (ie angle 2 in Fig. 4b).

Through the above analysis, in the embodiment of the present invention, it may be considered to determine the gear for adjusting the volume according to the above-mentioned relationship between the minimum angle and the 90° angle. Still taking the controllable active light beam as an example of a parallel controllable active light beam with a circular cross section, the above minimum angle can be defined as when the plane where the light sensing unit is located rotates clockwise to a position parallel to the controllable active light beam , the minimum angle that the plane goes around. Then the specific execution process of step 23 of the volume adjustment method provided by the embodiment of the present invention may include the following steps as shown in Figure 4c:

Step 41, determine the angle difference between the minimum angle defined above and 90°, and determine the minimum unit angle contained in the angle difference according to the determined angle difference and the preset minimum unit angle for adjusting the volume. number, for example, when the minimum angle is 120°, the angle difference between 120° and 90° is 30°, and if the preset minimum unit angle for volume adjustment is 10°, then 30° includes The number of minimum unit angles is 3;

Step 42, determine the preset volume minimum adjustment gear corresponding to the minimum unit angle, and according to the number determined in step 41, the product value obtained by multiplying the number by the minimum adjustment gear is determined as the volume that needs to be adjusted For example, if the preset volume minimum adjustment gear corresponding to the above-mentioned minimum unit angle of 10° is 1 gear (according to the actual situation, 1 gear may correspond to a volume of 10 or 20 decibels, etc.), then the volume needs to be adjusted. The adjusted gear should be 3×1=3 gears;

Step 43, comparing the relationship between the minimum angle and 90°, and adjusting the volume according to the determined gear according to the comparison result.

In the embodiment of the present invention, the situation in which the controllable active light beam is irradiated obliquely on the light sensing unit can be determined as the situation in which the volume is raised, and the situation in which the controllable active light beam is irradiated obliquely on the light sensing unit It is determined that the volume is lowered, but in general, in order to meet the user's usage habits, the situation of irradiating the controllable active light beam obliquely upward on the light sensing unit is determined as the situation of increasing the volume, that is, in the above steps In 43, when the comparison result is that the minimum angle is greater than 90°, the volume is increased by a certain gear; and when the comparison result is that the minimum angle is less than 90°, the volume is lowered by a certain gear.

Correspondingly, the embodiment of the present invention also provides a volume adjustment device, which is used to solve the problem that it is difficult to accurately capture the user's behavior information in a poor environment in the non-contact adjustment method provided by the prior art, so that it is impossible to make an accurate volume adjustment. Regulatory defects. The specific structural diagram of the device provided by the embodiment of the present invention is shown in Figure 5, including the following functional units:

A light sensing unit 51, configured to detect the controllable active light irradiated on the light sensing unit 51;

A determining unit 52, configured to determine the size information of the controllable active light detected by the light sensing unit 51 relative to the angle of the light sensing unit 51;

The volume adjusting unit 53 is configured to adjust the volume according to the angle size information determined by the determining unit 52 .

In the embodiment of the present invention, when the controllable active light beam is a parallel controllable active light beam with a circular cross section, the function of the determination unit 52 can be realized by the following functional modules:

A diameter length value determination module, used to determine the diameter length value of the circular cross-section of the parallel controllable active light beam;

The major axis length value determination module is used to determine the major axis length value of the ellipse when it is determined that the detected controllable active light beam irradiated on the light sensing unit has an elliptical cross section;

The angle size determination module is used to determine the size information of the angle of the controllable active light beam relative to the light sensing unit according to the major axis length value determined by the major axis length value determination module and the diameter length value determined by the diameter length value determination module.

Preferably, if the angle of the controllable active beam relative to the light sensing unit is defined as the minimum angle that the plane circumvents when the plane where the light sensing unit is located is rotated clockwise to a position parallel to the controllable active light , then the above-mentioned volume adjustment unit 53 can be further divided into the following functional modules, including:

The number determination module is used to determine the difference between the minimum angle and the angle of 90°, and determine the number of the minimum unit angle contained in the angle difference according to the angle difference and the preset minimum unit angle for adjusting the volume. number;

The gear determination module is used to determine the preset volume minimum adjustment gear corresponding to the minimum unit angle, and according to the number determined by the number determination module, the product value obtained by multiplying the determined number by the minimum adjustment gear is determined It is the position where the volume needs to be adjusted;

Comparison module, used to compare the size relationship between the minimum angle and 90°;

The volume adjustment module is used to adjust the volume according to the gear position determined by the gear position determination module according to the comparison result obtained by the comparison module.

Furthermore, corresponding to an implementation of the function of the volume adjustment module, in the embodiment of the present invention, the volume adjustment module can be further divided into the following functional sub-modules, including:

The volume up sub-module is used to adjust the volume up to a determined gear when the comparison result obtained by the comparison module is that the minimum angle is greater than 90°; the volume down sub-module is used to obtain the comparison result obtained by the comparison module when the minimum angle is less than 90° , turn down the volume by a certain level.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (10)

1. a volume adjusting method is characterized in that, comprising:

The terminal utilization of volume to be regulated is arranged on the light sensing unit on the described terminal, and the Controllable Active light that is radiated on the described light sensing unit is surveyed; And

Determine the Controllable Active light that detects with respect to the size information of the angle of described light sensing unit, and according to the size information of described angle, volume is regulated.

Wherein, described Controllable Active light is that cross section is circular parallel Controllable Active light beam, and determines that the Controllable Active light that detects is specially with respect to the size information of the angle of described light sensing unit:

Determine the diameter length value of described circle;

When the cross section of described Controllable Active light beam irradiates on described light sensing unit of determining to detect is ellipse, determine described oval-shaped long axis length value;

According to described long axis length value and described diameter length value, determine that described Controllable Active light beam is with respect to the size information of the angle of described light sensing unit.

2. the method for claim 1, it is characterized in that, the angle ranging from when plane, place, described light sensing unit be rotating shaft with the horizontal median axis on this plane, when rotating to the position parallel with described Controllable Active light according to clockwise direction, the minimum angles that described plane is walked around; And

According to the size information of described Controllable Active light with respect to the angle of described light sensing unit, volume is regulated, specifically comprise:

Determine angles poor of described minimum angles and 90 degree, and according to the difference of described angle and the default least unit angle that volume is regulated, determine the number of the least unit angle that the difference of described angle comprises;

Determine the corresponding default volume minimal adjustment gear of described least unit angle, and according to described number, described number be multiply by the resulting product value of described minimal adjustment gear be defined as the gear that need are regulated volume;

The magnitude relationship of more described minimum angles and 90 degree, and according to comparative result, according to the described gear of determining, volume is regulated.

3. method as claimed in claim 2 is characterized in that, according to comparative result, according to the described gear of determining, volume is regulated, and specifically comprises:

Be described minimum angles when spending greater than 90 at comparative result, volume raised the described gear of determining;

Be described minimum angles when spending less than 90 at comparative result, the described gear that volume down is determined.

4. as the arbitrary described method of claim 1～3, it is characterized in that described light sensing unit is the light sensing touch-screen, and described Controllable Active light is sent by the felt pen corresponding with described terminal.

5. as the arbitrary described method of claim 1～3, it is characterized in that described Controllable Active light is laser beam or infrared ray.

6. a volume adjustment device is characterized in that, comprising:

The light sensing unit is used for the Controllable Active light that is radiated on the described light sensing unit is surveyed;

Determining unit be used for to determine that the Controllable Active light that detects the light sensing unit is with respect to the size information of the angle of described light sensing unit;

Sound volume regulation unit is used for the size information according to the definite angle of determining unit, and volume is regulated.

Wherein, described Controllable Active light is that cross section is circular parallel Controllable Active light beam, and described determining unit specifically comprises:

Diameter length value determination module is for the diameter length value of determining described circle;

Long axis length value determination module is used for determining described oval-shaped long axis length value when the cross section of described Controllable Active light beam irradiates on described light sensing unit of determining to detect is ellipse;

The angular dimension determination module is used for long axis length value and the diameter length value determination module definite diameter length value definite according to long axis length value determination module, determines that described Controllable Active light beam is with respect to the size information of the angle of described light sensing unit.

7. device as claimed in claim 6, it is characterized in that, the angle ranging from when plane, place, described light sensing unit be rotating shaft with the horizontal median axis on this plane, when rotating to the position parallel with described Controllable Active light according to clockwise direction, the minimum angles that described plane is walked around; And described sound volume regulation unit specifically comprises:

The number determination module be used for to be determined angles poor of described minimum angles and 90 degree, and according to the difference of described angle and the least unit angle of presetting that volume is regulated, and determines the number of the least unit angle that the difference of described angle comprises;

The gear determination module, be used for determining the corresponding default volume minimal adjustment gear of described least unit angle, and according to the number that the number determination module is determined, described number be multiply by the resulting product value of described minimal adjustment gear be defined as the gear that need are regulated volume;

Comparison module is used for more described minimum angles and 90 magnitude relationship of spending;

Volume adjusting module for the comparative result that obtains according to comparison module, according to the gear that the gear determination module is determined, is regulated volume.

8. device as claimed in claim 7 is characterized in that, described volume adjusting module specifically comprises:

Volume raises submodule, and being used at the comparative result that comparison module obtains is described minimum angles when spending greater than 90, volume is raised the described gear of determining;

The volume down submodule, being used at the comparative result that comparison module obtains is described minimum angles when spending less than 90, the described gear that volume down is determined.

9. as the arbitrary described device of claim 6～8, it is characterized in that the light sensing unit is the light sensing touch-screen, and described Controllable Active light is sent by the felt pen corresponding with described terminal.

10. as the arbitrary described device of claim 6～8, it is characterized in that described Controllable Active light is laser beam or infrared ray.

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