CN109195246A - Light emission control method, device and storage medium - Google Patents
Light emission control method, device and storage medium Download PDFInfo
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- CN109195246A CN109195246A CN201810828871.0A CN201810828871A CN109195246A CN 109195246 A CN109195246 A CN 109195246A CN 201810828871 A CN201810828871 A CN 201810828871A CN 109195246 A CN109195246 A CN 109195246A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The disclosure provides a kind of light emission control method, device and storage medium.The light emission control method is applied to terminal device, and terminal device includes cover-plate glass and the infrared light-emitting diode that is arranged in below cover-plate glass.The light emission control method includes: the light intensity signal for obtaining reflection light, which is the light that glass cover-plate reflects the IR LED infrared light emitted；According to the light intensity signal of reflection light, control adjustment is carried out to the light intensity of the infrared light of IR LED transmitting.Light intensity of the disclosure by the infrared light of real-time dynamic monitoring IR LED transmitting, the accurate power consumption for controlling IR LED.
Description
Technical Field
The disclosed embodiments relate to the field of communications technologies, and in particular, to a light emission control method, a light emission control device, and a storage medium.
Background
Currently, infrared Light Emitting diodes (IR LEDs) are widely used in face recognition and 2D/3D applications. Since the characteristic light source of the IR LED is emitted divergently and the photoelectric conversion efficiency of the IR LED is low, the related art adopts a high power circuit to drive the IR LED.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a light emission control method, apparatus, and storage medium. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, a light emission control method is provided, which is applied to a terminal device, where the terminal device includes a cover glass and an infrared light emitting diode (IRLED) disposed below the cover glass; the method comprises the following steps:
acquiring a light intensity signal of reflected light, wherein the reflected light is light reflected by the glass cover plate to infrared light emitted by the IR LED;
and controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through the light intensity signal who acquires reflection light, this reflection light carries out the light that reflects for the infrared light of glass apron to IR LED transmission to according to reflection light's light intensity signal, control the adjustment to the light intensity of the infrared light of IR LED transmission, thereby through the light intensity of the infrared light of real-time dynamic monitoring IRLED transmission, accurate control IR LED's consumption.
Optionally, the acquiring the light intensity signal of the reflected light includes:
collecting reflected light;
and carrying out photoelectric conversion processing on the reflected light to obtain a light intensity signal of the reflected light.
Optionally, before controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light, the method further includes:
and carrying out signal amplification processing on the light intensity signal.
Optionally, the method further comprises:
acquiring a light intensity signal of ambient infrared light;
correspondingly, according to the light intensity signal of the reflected light, the light intensity of the infrared light emitted by the IR LED is controlled and adjusted, and the method comprises the following steps:
and controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light and the light intensity signal of the environment infrared light.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the light intensity of the infrared light emitted by the IR LED is controlled and adjusted by comprehensively considering the reflected light of the cover plate glass and the ambient infrared light, so that the power consumption control accuracy of the IR LED is further improved.
Optionally, the controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light and the light intensity signal of the ambient infrared light includes:
determining the light intensity of the reflected signal according to the light intensity signal of the reflected light, and determining the light intensity of the environment infrared light according to the light intensity signal of the environment infrared light;
if the light intensity of the ambient infrared light is higher than a first preset threshold value, the light intensity of the infrared light emitted by the IR LED is reduced;
and if the light intensity of the environment infrared light is lower than a second preset threshold value and the light intensity of the reflected signal is lower than a third preset threshold value, the light intensity of the infrared light emitted by the IR LED is increased.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: when the light intensity of the ambient infrared light is strong enough, the high-power output of the IR LED is not needed, so that the light intensity of the infrared light emitted by the IR LED is reduced; when the light intensity of environment infrared light is not enough to IR LED passes through when the infrared light intensity of cover plate glass reflection is not enough, need IR LED high power output, consequently, heighten the processing to the light intensity of the infrared light of IR LED transmission, realize the accurate control to the light intensity of the infrared light of IR LED transmission, intelligent feedback demand.
Optionally, the reducing the light intensity of the infrared light emitted by the IR LED includes: reducing the driving current of the driving circuit of the IRLED; the light intensity of the infrared light emitted by the IR LED is heightened, and the process comprises the following steps: and increasing the driving current of the driving circuit of the IR LED.
According to a second aspect of the embodiments of the present disclosure, there is provided a light emission control device, the device is applied to a terminal device, the terminal device includes a cover glass and an infrared light emitting diode (IRLED) disposed below the cover glass; the apparatus, comprising:
the first acquisition module is configured to acquire a light intensity signal of reflected light, wherein the reflected light is light reflected by the glass cover plate to infrared light emitted by the IR LED;
and the processing module is configured to control and adjust the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: through the light intensity signal who acquires reflection light, this reflection light carries out the light that reflects for the infrared light of glass apron to IR LED transmission to according to reflection light's light intensity signal, control the adjustment to the light intensity of the infrared light of IR LED transmission, thereby through the light intensity of the infrared light of real-time dynamic monitoring IRLED transmission, accurate control IR LED's consumption.
Optionally, the first obtaining module includes:
a collection sub-module configured to collect the reflected light;
and the conversion sub-module is configured to perform photoelectric conversion processing on the reflected light to obtain a light intensity signal of the reflected light.
Optionally, the light emission control device further comprises: and the amplification module is configured to perform signal amplification processing on the light intensity signal before the processing module controls and adjusts the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light.
Optionally, the light emission control device further comprises: the second acquisition module is configured to acquire a light intensity signal of the ambient infrared light; correspondingly, the processing module is configured to control and adjust the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light and the light intensity signal of the ambient infrared light.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the light intensity of the infrared light emitted by the IR LED is controlled and adjusted by comprehensively considering the reflected light of the cover plate glass and the ambient infrared light, so that the power consumption control accuracy of the IR LED is further improved.
Optionally, the processing module includes:
the determining sub-module is configured to determine the light intensity of the reflected signal according to the light intensity signal of the reflected light and determine the light intensity of the environment infrared light according to the light intensity signal of the environment infrared light;
a first processing sub-module configured to perform a lowering process on the light intensity of the infrared light emitted by the IR LED when the light intensity of the ambient infrared light is higher than a first preset threshold;
and the second processing sub-module is configured to increase the light intensity of the infrared light emitted by the IR LED when the light intensity of the ambient infrared light is lower than a second preset threshold and the light intensity of the reflected signal is lower than a third preset threshold.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: when the light intensity of the ambient infrared light is strong enough, the high-power output of the IR LED is not needed, so that the light intensity of the infrared light emitted by the IR LED is reduced; when the light intensity of environment infrared light is not enough to IR LED passes through when the infrared light intensity of cover plate glass reflection is not enough, need IR LED high power output, consequently, heighten the processing to the light intensity of the infrared light of IR LED transmission, realize the accurate control to the light intensity of the infrared light of IR LED transmission, intelligent feedback demand.
Optionally, the first processing sub-module is configured to perform reduction processing on a driving current of a driving circuit of the IR LED; the second processing submodule is configured to increase a driving current of a driving circuit of the IR LED.
According to a third aspect of the embodiments of the present disclosure, there is provided a light emission control device, the device is applied to a terminal device, the terminal device includes a cover glass and an infrared light emitting diode (IRLED) disposed below the cover glass; the apparatus, comprising: a processor and a memory for storing executable instructions; wherein the processor is configured to execute the executable instructions to perform the light emission control method of any one of the first aspect.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the light emission control method according to any one of the first aspects.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a flow chart illustrating a light emission control method according to an exemplary embodiment;
FIG. 2 is an exemplary diagram illustrating an application scenario in accordance with one illustrative embodiment;
FIG. 3 is a flow chart illustrating a light emission control method according to another exemplary embodiment;
FIG. 4 is a diagram illustrating an example of a terminal device configuration according to an exemplary embodiment;
FIG. 5 is a flow chart illustrating a light emission control method according to yet another exemplary embodiment;
FIG. 6 is a schematic diagram illustrating the construction of a light emission control device according to one exemplary embodiment;
FIG. 7 is a schematic view showing the construction of a light emission control device according to another exemplary embodiment;
fig. 8 is a block diagram of a terminal device shown in accordance with an example embodiment.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terms "first" and "second," and the like in the description and in the claims of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For the related art in which a high power circuit drives an IR LED, the inventors found that: the long-time high-power circuit drives the IR LED, so that the overall heat loss of the IR LED is very large.
Based on the above problems, embodiments of the present disclosure provide a light emission control method, device and storage medium, which accurately control power consumption of an IR LED by dynamically monitoring light intensity of infrared light emitted by the IR LED in real time, so as to achieve an optimal photoelectric efficiency.
The light emission control method, the light emission control device and the storage medium can be applied to terminal equipment. Wherein, terminal equipment includes the cover glass and sets up the IR LED under this cover glass. Illustratively, the terminal device may be a smart phone, a tablet computer, a Personal Digital Assistant (PDA), or other electronic device having a cover glass and an IR LED disposed under the cover glass.
Fig. 1 is a flowchart illustrating a light emission control method according to an exemplary embodiment. The present embodiment provides a light emission control method, which may be performed by a light emission control apparatus. The light emission control device can be realized by means of hardware and/or software, and can be integrated in the terminal equipment.
As shown in fig. 1, the light emission control method in this embodiment includes the following steps:
in step 101, a light intensity signal of the reflected light is obtained.
The reflected light is the light reflected by the glass cover plate to the infrared light emitted by the IR LED. Referring to fig. 2, the IR LED 22 is disposed below the glass cover 21, and a part of infrared light emitted from the IR LED 22 passes through the glass cover 21 to form outgoing light, and a part of infrared light is reflected by the glass cover 21 to form reflected light, which is received by the light emission control device 23. Then, the light emission control device 23 may acquire a light intensity signal of the reflected light.
In some exemplary embodiments, the light emission control device 23 may be an IR LED circuit including a Photodiode (PD), i.e., the reflected light is received by the PD. Wherein the PD is sensitive to infrared, a small part of the infrared light emitted by the IR LED 22 is reflected by the glass cover 21 covering the PD, and the reflected infrared light is incident on the PD.
In step 102, the intensity of the infrared light emitted by the IR LED is controlled and adjusted according to the intensity signal of the reflected light.
Since the intensity signal of the reflected light obtained by the emission control device 23 can reflect the intensity of the infrared light emitted by the IR LED, and the intensity of the infrared light emitted by the IR LED is determined by the power used by the IR LED and the photoelectric conversion efficiency of the IR LED, wherein the photoelectric conversion efficiency of the IR LED is relatively fixed, this step is substantially to control and adjust the power used by the IR LED according to the intensity signal of the reflected light.
It can be understood that when the light intensity signal of the reflected light is strong, the use power of the IR LED can be reduced, so that the long-time driving of the IR LED by a high-power circuit is avoided, the overall power consumption of the terminal equipment is reduced, and extra heating is reduced.
In summary, according to the light emission control method provided by this embodiment, by acquiring the light intensity signal of the reflected light, the reflected light is the light reflected by the glass cover plate to the infrared light emitted by the IR LED, and according to the light intensity signal of the reflected light, the light intensity of the infrared light emitted by the IR LED is controlled and adjusted, so that the power consumption of the IR LED is accurately controlled by dynamically monitoring the light intensity of the infrared light emitted by the IR LED in real time.
On the basis of the above embodiment, the step 101 of acquiring the light intensity signal of the reflected light may include: collecting reflected light; and carrying out photoelectric conversion processing on the reflected light to obtain a light intensity signal of the reflected light. The light emission control device converts light into electricity by performing photoelectric conversion on the light emission control device to obtain a light intensity signal of the reflected light, namely the light intensity signal of the reflected light is electricity, and then the electricity technology is uniformly adopted in subsequent processing, so that the processing is convenient.
Further, before the step 102 of controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light, the light emission control method may further include: and carrying out signal amplification processing on the light intensity signal. In practical applications, the light emission control device may further include an amplifying module, such as an amplifier, for performing signal amplification processing on the light intensity signal.
Taking the structure shown in fig. 3 as an example, the terminal device 30 includes a glass cover plate 31, IR LEDs 32 and PDs 33 provided below the glass cover plate 31, an external detection circuit 34, an amplifier 35, a processor 36, and an IR LED drive circuit 37. Wherein the IR LED 32 and the PD 33 are located in an area outside the screen display area 38. It will be appreciated that in this example the light emission control means may comprise a PD 33, an external detection circuit 34, an amplifier 35 and a processor 36. The PD 33 receives the reflected light, performs photoelectric conversion on the reflected light to obtain a light intensity signal of the reflected light, and transmits the light intensity signal to the amplifier 35 through the external detection circuit 34; the amplifier 35 amplifies the received light intensity signal and transmits the amplified signal to the processor 36; the processor 36 controls and adjusts the IR LED driving circuit 37 according to the amplified light intensity signal, and by combining the power used by the IR LED 32 and the photoelectric conversion efficiency of the IR LED 32, the control and adjustment of the light intensity of the infrared light emitted by the IR LED are realized.
It should be noted that the actual positions of the external detection circuit 34, the amplifier 35, the processor 36, and the IR LED driving circuit 37 are not shown in fig. 3, but are illustrated in terms of the signal flow direction for the sake of understanding only.
Fig. 4 is a flowchart illustrating a light emission control method according to another exemplary embodiment. As shown in fig. 4, the light emission control method includes the steps of:
in step 401, a light intensity signal of the reflected light is obtained.
This step is the same as step 101, and is not described herein again.
In step 402, a light intensity signal of ambient infrared light is acquired.
Still referring to fig. 2, the light emission control device 23 can receive not only the reflected light formed after the reflection by the glass cover plate 21, but also ambient infrared light, i.e., infrared light incident from the outside.
Similar to step 401, the light emission control device can obtain the light intensity signal of the ambient infrared light.
In step 403, the light intensity of the infrared light emitted by the IR LED is controlled and adjusted according to the light intensity signal of the reflected light and the light intensity signal of the ambient infrared light.
This step is similar to step 102, with the difference that: the embodiment not only takes the light intensity signal of the reflected light as the basis, but also controls and adjusts the light intensity of the infrared light emitted by the IR LED by combining the light intensity signal of the ambient infrared light.
In summary, the light emission control method provided in this embodiment comprehensively considers the reflected light of the cover glass and the ambient infrared light to control and adjust the light intensity of the infrared light emitted by the IR LED, so as to further improve the accuracy of power consumption control of the IR LED.
In one implementation, the step 403 of controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light and the light intensity signal of the ambient infrared light may include the following steps (as shown in fig. 5):
in step 501, the light intensity of the reflected signal is determined according to the light intensity signal of the reflected light, and the light intensity of the ambient infrared light is determined according to the light intensity signal of the ambient infrared light.
In step 502, if the light intensity of the ambient infrared light is higher than the first preset threshold, the light intensity of the infrared light emitted by the IR LED is decreased.
In step 503, if the light intensity of the ambient infrared light is lower than the second preset threshold and the light intensity of the reflected signal is lower than the third preset threshold, the light intensity of the infrared light emitted by the IR LED is increased.
The light intensity is also referred to as the luminous intensity. The method for calculating the light intensity can refer to the related art, and is not described herein. It should be noted that, in this embodiment, the sizes of the first preset threshold, the second preset threshold, and the third preset threshold are not fixed and may be set according to actual requirements, but it is clear that the first preset threshold is greater than the second preset threshold.
In the embodiment, when the light intensity of the ambient infrared light is strong enough, the high-power output of the IR LED is not needed, so that the light intensity of the infrared light emitted by the IR LED is reduced; when the light intensity of environment infrared light is not enough to IR LED passes through when the infrared light intensity of cover plate glass reflection is not enough, need IR LED high power output, consequently, heighten the processing to the light intensity of the infrared light of IR LED transmission, realize the accurate control to the light intensity of the infrared light of IR LED transmission, intelligent feedback demand.
Further, the above-mentioned adjusting the light intensity of the infrared light emitted by the IR LED down may include: reducing the driving current of the driving circuit of the IRLED; accordingly, the increasing of the light intensity of the infrared light emitted from the IR LED may include: the driving current of the driving circuit of the IR LED is increased, so that the driving current of the IR LED is dynamically adjusted, the effect that the driving circuit of the IR LED needs to output large driving current with large power consumption is finally achieved, and the purposes of dynamically adjusting the power of the whole machine, saving electric quantity and reducing power consumption are achieved.
In summary, the embodiments of the present disclosure may have at least the following beneficial effects:
1. the light intensity of the infrared light is dynamically monitored in real time, the feedback timeliness is high, the power consumption of the IR LED is accurately controlled,
2. The power consumption of the whole machine is reduced, and extra heating is reduced.
3. The infrared light output of the IR LED is accurately controlled, and the requirement of intelligent feedback is met.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods. For details not disclosed in the embodiments of the apparatus of the present disclosure, refer to the embodiments of the method of the present disclosure.
Fig. 6 is a schematic structural view illustrating a light emission control device according to an exemplary embodiment. Referring to fig. 6, the light emission control device 60 includes: a first acquisition module 61 and a processing module 62. Wherein the first obtaining module 61 and the processing module 62 are coupled.
The first obtaining module 61 is configured to obtain a light intensity signal of the reflected light. Wherein, this reflection light is the light that the infrared light that the glass apron was sent the IR LED reflected.
The processing module 62 is configured to control and adjust the light intensity of the infrared light emitted from the IR LED according to the light intensity signal of the reflected light.
To sum up, the light emission controlling means that this embodiment provided, through the light intensity signal who acquires reflection light, this reflection light carries out the light that reflects for the infrared light of glass apron to IR LED transmission to according to reflection light's light intensity signal, control the adjustment to the light intensity of the infrared light of IR LED transmission, thereby through the light intensity of the infrared light of real-time dynamic monitoring IR LED transmission, accurate control IR LED's consumption.
Fig. 7 is a schematic structural view illustrating a light emission control device according to another exemplary embodiment. Referring to fig. 7, on the basis of the structure shown in fig. 6, the first obtaining module 61 may include: an acquisition sub-module 611 and a conversion sub-module 612.
The collection submodule 611 is configured to collect the reflected light.
The conversion sub-module 612 is configured to perform a photoelectric conversion process on the reflected light, so as to obtain a light intensity signal of the reflected light.
Optionally, the light emission control device 70 may further include: and the amplifying module 71 is configured to perform signal amplification processing on the light intensity signal before the processing module 62 performs control adjustment on the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light.
In some embodiments, the light emission control device 70 may further include: a second acquisition module 72 configured to acquire a light intensity signal of the ambient infrared light. Accordingly, the processing module 62 is configured to control and adjust the light intensity of the infrared light emitted from the IR LED according to the light intensity signal of the reflected light and the light intensity signal of the ambient infrared light.
Above-mentioned embodiment, the reflected light and the environment infrared light of considering cover plate glass comprehensively, control the adjustment to the light intensity of the infrared light of IR LED transmission, further promoted the accuracy of IR LED's power consumption control.
Alternatively, the processing module 62 may include: a determination sub-module 621, a first processing sub-module 622 and a second processing sub-module 623. Wherein,
the determining sub-module 621 is configured to determine the light intensity of the reflected light according to the light intensity signal of the reflected light, and determine the light intensity of the ambient infrared light according to the light intensity signal of the ambient infrared light.
The first processing sub-module 622 is configured to perform a dimming process on the intensity of the infrared light emitted by the IR LED when the intensity of the ambient infrared light is higher than a first preset threshold.
The second processing sub-module 623 is configured to increase the intensity of the infrared light emitted by the IR LED when the intensity of the ambient infrared light is lower than a second preset threshold and the intensity of the reflected signal is lower than a third preset threshold.
In the embodiment, when the light intensity of the ambient infrared light is strong enough, the high-power output of the IR LED is not needed, so that the light intensity of the infrared light emitted by the IR LED is reduced; when the light intensity of environment infrared light is not enough to IR LED passes through when the infrared light intensity of cover plate glass reflection is not enough, need IR LED high power output, consequently, heighten the processing to the light intensity of the infrared light of IR LED transmission, realize the accurate control to the light intensity of the infrared light of IR LED transmission, intelligent feedback demand.
Further, a first processing sub-module 622 configured to perform a reduction process on the driving current of the driving circuit of the IR LED; and a second processing sub-module 623 configured to perform increase processing on the driving current of the driving circuit of the IR LED.
Fig. 8 is a block diagram of a terminal device shown in accordance with an example embodiment. Referring to fig. 8, the light emission control device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls the overall operation of the light emission control device 800, such as operations associated with display, data communication, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support the operation at the light emission control device 800. Examples of such data include instructions for any application or method operating on the light emission control device 800, contact data, phonebook data, messages, pictures, videos, and the like. The Memory 804 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM) or Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk.
The power supply component 806 provides power to the various components of the light emission control device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the light emission control device 800.
The multimedia component 808 includes a screen providing an output interface between the light emission control device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. When the light emission control device 800 is in an operation mode, such as a photographing mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 810 is configured to output and/or input audio signals. For example, the audio module 810 includes a Microphone (MIC) configured to receive an external audio signal when the light emission control device 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the light emission control device 800. For example, the sensor assembly 814 may detect the open/closed state of the light emission control device 800, the relative positioning of the components, such as the display and keypad of the light emission control device 800, the sensor assembly 814 may also detect a change in the position of the light emission control device 800 or a component of the light emission control device 800, the presence or absence of user contact with the light emission control device 800, the orientation or acceleration/deceleration of the light emission control device 800, and a change in the temperature of the light emission control device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. Sensor assembly 814 may also include a photosensor, such as a Complementary Metal Oxide Semiconductor (CMOS) or a Charge-coupled Device (CCD) photosensitive imaging element, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate wired or wireless communication between the light emission control apparatus 800 and other devices. The light emission control device 800 may be connected to a Wireless network based on a communication standard, such as Wireless-Fidelity (WiFi), 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the Communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the light emission control Device 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the light emission control device 800 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a Compact Disc Read-Only Memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium in which instructions, when executed by a processor, enable the processor to perform a light emission control method, the method comprising: : acquiring a light intensity signal of reflected light, wherein the reflected light is light reflected by the glass cover plate to infrared light emitted by the IR LED; and controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (14)
1. A light emission control method is characterized in that the method is applied to a terminal device, and the terminal device comprises a cover glass and an infrared light emitting diode (IR LED) arranged below the cover glass; the method comprises the following steps:
acquiring a light intensity signal of reflected light, wherein the reflected light is light reflected by the glass cover plate to infrared light emitted by the IR LED;
and controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light.
2. The method of claim 1, wherein the obtaining of the intensity signal of the reflected light comprises:
collecting reflected light;
and carrying out photoelectric conversion processing on the reflected light to obtain a light intensity signal of the reflected light.
3. The method according to claim 1, wherein before the controlling and adjusting the intensity of the infrared light emitted from the IR LED according to the intensity signal of the reflected light, the method further comprises:
and carrying out signal amplification processing on the light intensity signal.
4. The method of any one of claims 1-3, further comprising:
acquiring a light intensity signal of ambient infrared light;
correspondingly, according to the light intensity signal of the reflected light, the light intensity of the infrared light emitted by the IR LED is controlled and adjusted, and the method comprises the following steps:
and controlling and adjusting the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light and the light intensity signal of the environment infrared light.
5. The method of claim 4, wherein the controlling and adjusting the intensity of the infrared light emitted from the IR LED according to the intensity signal of the reflected light and the intensity signal of the ambient infrared light comprises:
determining the light intensity of the reflected signal according to the light intensity signal of the reflected light, and determining the light intensity of the environment infrared light according to the light intensity signal of the environment infrared light;
if the light intensity of the ambient infrared light is higher than a first preset threshold value, the light intensity of the infrared light emitted by the IR LED is reduced;
and if the light intensity of the environment infrared light is lower than a second preset threshold value and the light intensity of the reflected signal is lower than a third preset threshold value, the light intensity of the infrared light emitted by the IR LED is increased.
6. The method of claim 5,
the light intensity of the infrared light emitted by the IR LED is lowered, and the method comprises the following steps: reducing the driving current of the driving circuit of the IR LED;
the light intensity of the infrared light emitted by the IR LED is heightened, and the process comprises the following steps: and increasing the driving current of the driving circuit of the IR LED.
7. A light emission control device is characterized in that the device is applied to a terminal device, and the terminal device comprises a cover glass and an infrared light emitting diode (IR LED) arranged below the cover glass; the apparatus, comprising:
the first acquisition module is configured to acquire a light intensity signal of reflected light, wherein the reflected light is light reflected by the glass cover plate to infrared light emitted by the IR LED;
and the processing module is configured to control and adjust the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light.
8. The apparatus of claim 7, wherein the first obtaining module comprises:
a collection sub-module configured to collect the reflected light;
and the conversion sub-module is configured to perform photoelectric conversion processing on the reflected light to obtain a light intensity signal of the reflected light.
9. The apparatus of claim 7, further comprising:
and the amplification module is configured to perform signal amplification processing on the light intensity signal before the processing module controls and adjusts the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light.
10. The apparatus of any one of claims 7 to 9, further comprising:
the second acquisition module is configured to acquire a light intensity signal of the ambient infrared light;
correspondingly, the processing module is configured to control and adjust the light intensity of the infrared light emitted by the IR LED according to the light intensity signal of the reflected light and the light intensity signal of the ambient infrared light.
11. The apparatus of claim 10, wherein the processing module comprises:
the determining sub-module is configured to determine the light intensity of the reflected signal according to the light intensity signal of the reflected light and determine the light intensity of the environment infrared light according to the light intensity signal of the environment infrared light;
a first processing sub-module configured to perform a lowering process on the light intensity of the infrared light emitted by the IR LED when the light intensity of the ambient infrared light is higher than a first preset threshold;
and the second processing sub-module is configured to increase the light intensity of the infrared light emitted by the IR LED when the light intensity of the ambient infrared light is lower than a second preset threshold and the light intensity of the reflected signal is lower than a third preset threshold.
12. The apparatus of claim 11,
the first processing submodule is configured to perform reduction processing on the driving current of the driving circuit of the IR LED;
the second processing submodule is configured to increase a driving current of a driving circuit of the IR LED.
13. A light emission control device is characterized in that the device is applied to a terminal device, and the terminal device comprises a cover glass and an infrared light emitting diode (IR LED) arranged below the cover glass; the apparatus, comprising:
a processor and a memory for storing executable instructions;
wherein the processor is configured to execute the executable instructions to perform the light emission control method of any one of claims 1 to 6.
14. A computer-readable storage medium on which a computer program is stored, the computer program implementing the light emission control method according to any one of claims 1 to 6 when executed by a processor.
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