CN113014320B - Visible light communication control method and device for electronic equipment and electronic equipment - Google Patents
Visible light communication control method and device for electronic equipment and electronic equipment Download PDFInfo
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- CN113014320B CN113014320B CN202110173295.2A CN202110173295A CN113014320B CN 113014320 B CN113014320 B CN 113014320B CN 202110173295 A CN202110173295 A CN 202110173295A CN 113014320 B CN113014320 B CN 113014320B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
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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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses electronic equipment's visible light communication control method, device and electronic equipment, electronic equipment's shell is provided with a plurality of light guide parts, and a plurality of light guide parts can switch between printing opacity state and opaque state, and the method includes: acquiring the intensity of the light signal incident from each light guide portion; determining the highest intensity of the light signals incident into the plurality of light guide parts as a target light guide part; the target light guide part is controlled to be in a light transmission state, and the other light guide parts are controlled to be in a light-tight state.
Description
Technical Field
The present application belongs to the technical field of optical communication, and in particular, relates to a visible light communication control method for an electronic device, a visible light communication control device for an electronic device, and a computer-readable storage medium.
Background
The visible-Light communication (LiFi) technology is a technology for data transmission using visible Light as a carrier, and can be widely applied to communication places sensitive to radio, such as airplanes and operating rooms. In practical situations, due to the weak penetrating power of visible light, the signal of LiFi is easily blocked by an obstacle during transmission, so that the transmission of the signal of LiFi is easily cut off.
Disclosure of Invention
The present application aims to provide a visible light communication control method and apparatus for an electronic device, and an electronic device, which solve at least one of the problems mentioned in the background art.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a visible light communication control method for an electronic device, where a housing of the electronic device is provided with a plurality of light guide portions, and the plurality of light guide portions are switchable between a light-transmitting state and a light-tight state, and the method includes: acquiring the intensity of the light signal incident from each light guide portion; determining the highest intensity of the light signals incident into the plurality of light guide parts as a target light guide part; the target light guide part is controlled to be in a light transmission state, and the other light guide parts are controlled to be in a light-tight state.
In a second aspect, an embodiment of the present application provides a visible light communication control apparatus for an electronic device, where a housing of the electronic device is provided with a plurality of light guide portions, and the plurality of light guide portions are switchable between a light-transmitting state and a light-blocking state, the apparatus including: an acquisition module for acquiring intensity of the optical signal incident from each light guide portion; a determining module for determining the highest intensity of the light signals incident into the plurality of light guide parts as a target light guide part; and the control module is used for controlling the target light guide part to be in a light-transmitting state and controlling the other light guide parts to be in a light-tight state.
In a third aspect, an embodiment of the present application provides an electronic device, including: the electronic equipment comprises a shell, wherein the shell is provided with a plurality of light guide parts, the light guide parts are in a light transmission state or a light-tight state, and at most one light guide part of the electronic equipment is in the light transmission state at the same moment.
In a fourth aspect, an embodiment of the present application provides an electronic device, including a memory and a processor, the memory being configured to store a computer program; the processor is for executing a computer program to perform the visible light communication control method of the electronic device as in the first aspect.
In a fifth aspect, the present application provides a readable storage medium, on which a program or instructions are stored, and when executed by a processor, the program or instructions implement the visible light communication control method of the electronic device according to the first aspect.
In an embodiment of the present application, a housing of an electronic device is provided with a plurality of light guide portions, and the plurality of light guide portions can be switched between a light-transmitting state and a light-opaque state. The purpose of automatically selecting a target light guide part from a plurality of light guide parts to receive an optical signal and perform visible light communication is achieved. Because the intensity of the optical signal received by the target light guide part is greater than that of the optical signal received by any of the rest of the plurality of light guide parts, the optical signal is received by the target light guide part, and the electronic device can be ensured to have the optimal optical signal receiving performance.
Drawings
FIG. 1 is a schematic diagram of the working principle of visible light communication;
fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another electronic device provided in an embodiment of the present application;
fig. 4A is a schematic side view of an electronic device according to an embodiment of the present disclosure;
fig. 4B is a schematic side view of another electronic device according to an embodiment of the present disclosure;
FIG. 5 is a schematic top view of the electronic device of FIG. 4A;
fig. 6 is a functional structure diagram of an electronic device according to an embodiment of the present disclosure;
fig. 7 is a flowchart of a method of controlling visible light communication of an electronic device according to an embodiment of the present application;
fig. 8 is a flowchart of a method of controlling visible light communication of an electronic device according to an embodiment of the present disclosure;
fig. 9 is a flowchart of a method of controlling visible light communication of an electronic device according to an embodiment of the present application;
fig. 10 is a schematic diagram illustrating a temporal relationship of events executed in a visible light communication method of an electronic device according to an embodiment of the present application;
fig. 11 is a flowchart of a method of controlling visible light communication of an electronic device according to an embodiment of the present application;
fig. 12 is a flowchart of a method of controlling visible light communication of an electronic device according to an embodiment of the present application;
fig. 13 is a schematic diagram of a second position in a visible light communication control method of another electronic device according to an embodiment of the present application;
fig. 14 is a schematic diagram illustrating relative position information of a light guide portion with respect to a light source in a visible light communication control method for an electronic device according to yet another embodiment of the present application;
fig. 15 is a functional structure diagram of a visible light communication control apparatus of an electronic device according to an embodiment of the present application;
fig. 16 is a functional structure diagram of another electronic device according to an embodiment of the present application;
fig. 17 is a functional structure diagram of another electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
Before the embodiments of the present application are described, the working principle of LiFi will be briefly described.
LiFi can use a visible light source as the source of emission for the signal. As shown in fig. 1, the visible Light source may be a lighting device such as a Light Emitting Diode (LED) used for indoor illumination. The lighting equipment is additionally provided with the microchip, the transmitted signal is usually loaded into a power line and transmitted to the microchip of the indoor lighting equipment, and the microchip controls the lighting equipment to be turned on or turned off according to the received signal. Generally, the lighting device can flash at a very fast speed, the number of times of flashing can reach millions of times per second, and the flashing is imperceptible to naked eyes of people, but a large amount of binary coded information loaded on an optical signal can be carried in the flashing process, such as bright or strong representing 1 and dead or weak representing 0, so that the purpose of transmitting data by the lighting device is achieved.
As can be seen from the above description, the signal of LiFi can be transmitted wherever visible light is present. However, since visible light has a limitation of being easily blocked, the signal of LiFi is easily attenuated or cut off.
Taking a mobile phone in a mobile terminal device as an example, at present, a camera of the mobile phone receives an optical signal emitted by a visible light source, and in this case, if an obstacle exists between the camera and the visible light source, for example, a user holds the mobile phone by hand to make the camera covered by a finger of the user, the signal of LiFi is cut off, which causes an interruption of communication of the signal based on LiFi; also for example, under the situation that the camera is not aligned with the light source, the signal of LiFi received by the mobile phone is weak, the speed of receiving data by the mobile phone is reduced, and the signal of LiFi may be completely cut off in a serious situation, so that the communication of the signal based on LiFi is interrupted, which seriously damages the user experience.
In order to solve the existing problems, embodiments of the present application provide an electronic device.
Fig. 2 shows a schematic structural diagram of an electronic device provided in an embodiment of the present application, and fig. 3 shows a schematic structural diagram of another electronic device provided in an embodiment of the present application. As shown in fig. 2 and 3, the electronic device 20 includes a housing 21, and a plurality of light guide portions 211 are provided on the housing 21.
The light guide portion 211 may be integrated with the housing 21; alternatively, the light guide 211 may be provided separately from the housing 21.
The light guide portion 211 is in a transparent state or a non-transparent state at different times, and at most one light guide portion of the electronic device is in the transparent state at the same time. The light guide portion can perform visible light communication in a translucent state, and cannot perform visible light communication in an opaque state.
For example, at a certain time, one of the light guide portions 211 is in a light-transmitting state in which visible light communication is possible, and the remaining light guide portions 211 of the light guide portions 211 are in a light-blocking state in which visible light communication is not possible; at the next time spaced apart from this time by a certain time interval, another light guide portion of the plurality of light guide portions 211 is in a light-transmitting state in which visible light communication is possible, and the remaining light guide portions of the plurality of light guide portions 211 are in a light-non-transmitting state in which visible light communication is not possible.
In some embodiments, light directing portion 211 is made of an electrochromic material. The electrochromic material has the following characteristics: different electrochromic materials may correspond to different color change voltage thresholds. When the voltage on the electrochromic material is greater than or equal to the color-changing voltage threshold corresponding to the electrochromic material, the electrochromic material transmits light; and under the condition that the voltage on the electrochromic material is less than the color-changing voltage threshold corresponding to the electrochromic material, the electrochromic material is not light-transmitting.
According to the above characteristics of the electrochromic material, the light guide portion 211 can be controlled to be in a light-transmitting state or a light-non-transmitting state by controlling the voltage across the light guide portion 211.
For example, the light guide portion 211 is made of an electrochromic material, the electrochromic voltage threshold corresponding to the electrochromic material is W, and the voltage on the light guide portion 211 is controlled to be greater than or equal to W, in this case, the light guide portion 211 transmits light, and transmission of an optical signal can be performed, that is, the light guide portion 211 is in a light-transmitting state capable of performing visible light communication; the voltage on the light guide portion 211 is controlled to be less than W, in which case the light guide portion 211 is opaque and transmission of the optical signal is not possible, i.e., the light guide portion 211 is in an opaque state in which visible light communication is not possible.
In some examples, the electrochromic material is an inorganic electrochromic material, such as tungsten trioxide.
In some examples, the electrochromic material is an organic electrochromic material, such as polythiophenes and derivatives thereof, viologens, tetrathiafulvalene, metal phthalocyanines.
In some examples, the plurality of light directing portions 211 can be made of the same electrochromic material; alternatively, the plurality of light guide portions 211 may be made of different electrochromic materials.
The electrochromic material may be selected by those skilled in the art according to practical situations, and the embodiment of the present disclosure does not limit this.
In some embodiments, fig. 4A is a side view of fig. 5, and as shown in fig. 4A and 5, the housing 21 has a flat plate shape, the housing 21 includes a plurality of corners 22, and the plurality of light guides 211 includes light guides 211 respectively disposed at each of the corners 22.
Illustratively, as shown in fig. 5, one light guide portion 211 is provided at each top corner 22 of the housing 21.
In some embodiments, fig. 4B is a side view of fig. 2 and 3. As shown in fig. 2, 3, and 4B, the plurality of light guide portions 211 includes light guide portions 211 respectively provided at each of the top corners 22, and at least one light guide portion provided on the side of the case 21.
Illustratively, as shown in fig. 2 and 3, one light guide portion 211 is disposed at each top corner 22 of the housing 21, and one light guide portion 211 is disposed at a middle position of two opposite side edges of the housing 21.
In some embodiments, as shown in fig. 6, the electronic device 20 includes an optical signal acquisition device 23 and a processor 24.
The optical signal collecting device 23 is used for collecting optical signals and converting the optical signals into electrical signals.
The processor 24 is connected with the optical signal acquisition device 23 and is used for receiving the electric signals; and the processor 24 determines the intensity of the optical signal corresponding to each of the plurality of light guide portions according to the received electrical signal, and controls the target light guide portion to be in a light-transmitting state and the rest light guide portions to be in a light-tight state by using the light signal with the highest intensity incident into the plurality of light guide portions as the target light guide portion (see the corresponding description in the subsequent steps S710 to S730, which is not described herein again).
In some embodiments, as shown in fig. 2, the optical signal collection device 23 includes: a plurality of first optical pathways 231 and a rotatable optical pathway receiver 232. The plurality of first light paths 231 correspond to the plurality of light guide portions 211 one to one, and the input ends of the first light paths 231 are connected to the corresponding light guide portions 211; the output end of the first optical path 231 is opposite to a position where the optical path receiver 232 is rotated.
Illustratively, the first optical pathway 231 is an optical fiber for transmitting an optical signal.
In some embodiments, referring back to fig. 3, the optical signal collecting device 23 includes: a plurality of second optical pathways 233 and a plurality of photoelectric converters 234. The plurality of second optical paths 233 correspond to the plurality of photoelectric converters 234 one by one, the plurality of second optical paths 233 correspond to the plurality of light guide portions 211 one by one, and input ends of the second optical paths 233 are connected to the corresponding light guide portions 211 through the corresponding photoelectric converters 234.
The light guide 211 corresponding to the photoelectric converter 234 can also be regarded as a layer of electrochromic material coated on the surface of the photoelectric converter 234. The thickness of the light guide 211 is much smaller than that of the photoelectric converter 234.
Illustratively, the second optical via 233 is a conductive line, such as a metal line, for transmitting an electrical signal. The photoelectric converter 234 is a device capable of converting an optical signal into an electrical signal, such as a photoreceiver.
In some embodiments, the optical signal acquisition device 23 includes: a camera module, which may include a photoelectric converter 234 as shown in fig. 3, capable of converting an optical signal into an electrical signal; the camera module may also include at least one camera for obtaining light source images and outputting the light source images to the processor 24. The at least one camera may comprise a front camera and/or a rear camera.
The electronic equipment that this application embodiment provided can obtain the intensity of the light signal from every light guide part incidence through controlling the light guide part to be the printing opacity state or opaque state, then confirm that the intensity of the light signal of incidence in a plurality of light guide parts is the target light guide part, through carrying out the route switching of communicating to the route that target light guide part corresponds on, can effectively improve the stability of light signal reception, make electronic equipment have the best light signal reception performance, promote the transmission rate of data, alleviate the influence that the visible light communication in-process caused for communication process because light signal attenuation. Compared with the mode of receiving optical signals through a camera in the prior art, the electrochromic material is introduced to set the plurality of light guide portions, so that the situation that the electronic equipment is provided with the plurality of cameras to receive the optical signals can be effectively avoided, and the situation that the electronic equipment is lack of aesthetic feeling due to the fact that the plurality of lenses are arranged on the electronic equipment is avoided. In addition, the electrochromic material can be coated on the surface of the device, so that the device also has the advantages of small occupied space and the like.
Based on the electronic device 20 provided above, the embodiment of the present application further provides a visible light communication control method for an electronic device.
Fig. 7 shows a method flowchart of a visible light communication control method of an electronic device according to an embodiment of the present application. As shown in fig. 7, the visible light communication method includes steps S710 to S730.
Step S710: the intensity of the light signal incident to each light guide portion is acquired.
Step S710 may be performed by passive triggering or active triggering.
In some examples, in the case where step S710 is performed for passive triggering, the intensity of the light signal incident from each light guide portion is directly acquired.
In some examples, in the case where step S710 is performed for active triggering, a light source image obtained by capturing a light source providing a light signal may be captured by a camera module, and the intensity of the light signal incident from each light guide portion in the light source image is acquired according to relative position information of the light guide portion with respect to the light source.
In some embodiments, step S710 is performed for passive triggering based on the electronic device shown in fig. 2 and 3. In this case, as shown in fig. 8, the execution process of step S710 includes steps S810 to S820:
step S810: and under the condition that the optical signal is interrupted for a time longer than a first preset time, sequentially taking the plurality of light guide parts as the light guide parts to be detected.
The light guide part is in a light-tight state under the condition that no voltage signal is received. In this case, in step S810, when the optical signal is interrupted and the interruption time is greater than the first preset time, the multiple light guide portions are sequentially used as the light guide portions to be detected, and only the preset voltage signal is output to the light guide portions to be detected, so that the light guide portions to be detected are transparent and in a transparent state, the rest of the light guide portions do not receive the voltage signal, and the rest of the light guide portions are in a non-transparent state.
The size of the first preset time may be set by a person skilled in the art according to practical situations, and the embodiment of the present disclosure does not limit this.
Step S820: and acquiring the intensity of the optical signal received by the light guide part to be detected, and taking the intensity of the optical signal as the intensity of the optical signal corresponding to the light guide part to be detected.
In some examples, based on the electronic device shown in fig. 2, as shown in fig. 9, the execution of step S820 may include the following steps S910 to S940:
step S910: and taking a first light path corresponding to the light guide part to be detected as a target light path, and controlling the light path receiver to rotate to a position where the input end of the light path receiver is opposite to the output end of the target light path.
Step S920: the optical signal output from the optical path receiver is received after passing through the target optical path and the optical path receiver in this order.
Step S930: the received optical signal is converted into an electrical signal.
Step S940: and obtaining the intensity of the electric signal according to the signal parameters of the electric signal, and taking the intensity of the electric signal as the intensity of the optical signal corresponding to the light guide part to be detected.
The Signal parameters of the electrical Signal may include, for example, Signal Noise Ratio (SNR), Reference Signal Receiving Power (RSRP), and other data. When the electric signal strength is obtained according to the signal parameters of the electric signal, the signal parameters of the electric signal can be brought into a preset calculation formula for calculation, and the calculation result is used as the electric signal strength.
In some examples, as shown in fig. 2 and 10 in combination, the plurality of light directing portions include light directing portion 1, light directing portion 2, light directing portion 3 … … and light directing portion 6. In the initial state, all light guide portions receive the default voltage signal V0 and are in the opaque state. In this case, referring to fig. 2 and fig. 10, the first module outputs a first voltage V11 to the light guide portion 1 with the light guide portion 1 as the detection light guide portion, so that the light guide portion 1 is converted from the opaque state to the transparent state. The optical signal is transmitted to the inside of the electronic device through the light guide portion 1 in the light transmitting state and the first optical path D1 corresponding to the light guide portion 1 in this order. After that, the first module outputs the control voltage V13 to the optical path receiver 232, so that the optical path receiver 232 rotates according to the received control voltage V13, and the optical path receiver 232 rotates its input end to a position opposite to the output end of the first optical path D1 corresponding to the optical guide 1 according to the received control voltage V13 to receive the optical signal output from the output end of the first optical path D1. The optical signal is output to the second module in the electronic device by the optical path receiver 232 after passing through the optical path receiver, the second module converts the optical signal into an electrical signal, obtains the signal parameter Data1 of the electrical signal, and finally obtains the intensity of the electrical signal according to the signal parameter Data1 of the electrical signal. After that, the processing module may send a trigger voltage to the first module, so that the first module outputs a second voltage V12 to the light guide portion 1 according to the trigger voltage, so that the light guide portion 1 is converted from the light-transmitting state to the light-blocking state. Thereby completing the process of obtaining the intensity of the optical signal received by the light guide to be detected.
After that, similarly to the case where the light guide unit 1 is the detection light guide unit, the first module outputs the second voltage V21 to the light guide unit with the light guide unit 2 as the detection light guide unit, so that the light guide unit 2 is switched from the opaque state to the transmissive state. The first module outputs a control voltage V23 to the optical path receiver 232, and the optical path receiver 232 rotates its input terminal to a position opposite to the output terminal of the second optical path D2 corresponding to the light guide 2 according to the received control voltage V13 to receive the optical signal output from the output terminal of the second optical path D2. The optical signal is output to a processing module in the electronic equipment by the optical path receiver after passing through the optical path receiver, the second module converts the optical signal into an electric signal, acquires a signal parameter Data2 of the electric signal, and finally acquires the intensity of the electric signal according to the signal parameter Data2 of the electric signal. After that, the second module may send a trigger voltage to the first module, so that the first module outputs a second voltage V22 to the light guide portion 2 according to the trigger voltage, so that the light guide portion 2 is converted from the light-transmitting state to the light-blocking state.
Based on the electronic device shown in fig. 2, the control process of each light guide portion in the remaining light guide portions as the detection light guide portion is similar to the above process, and specific reference may be made to the corresponding description in the above process, which is not described herein again.
In some examples, based on the electronic device shown in fig. 3, as shown in fig. 11, the execution of step S820 may include the following steps S1110 to S1120:
step S1110: receiving an electric signal input through a second optical path corresponding to the light guide part to be detected; the electric signal is obtained by performing photoelectric conversion on the optical signal received by the light guide part to be detected by the photoelectric converter connected with the light guide part to be detected.
Step S1120: and obtaining the intensity of the electric signal according to the signal parameters of the electric signal, and taking the intensity of the electric signal as the intensity of the optical signal corresponding to the light guide part to be detected.
The manner of obtaining the strength of the electrical signal may be referred to in step S940, and is not described herein again.
For example, as shown in fig. 3 and 10, the plurality of light guide portions include light guide portion 1, light guide portion 2, light guide portion 3 … …, and light guide portion 6. In the initial state, all light guide portions receive the default voltage signal V0 and are in the opaque state. In this case, referring to fig. 3 and fig. 10, the first module outputs a first voltage V11 to the light guide portion 1 using the light guide portion 1 as a detection light guide portion, so that the light guide portion 1 is converted from the opaque state to the transparent state. The optical signal is received by the photoelectric converter corresponding to the light guide part 1 after passing through the light guide part 1 in the light transmission state, the photoelectric converter converts the received optical signal into an electric signal and outputs the electric signal to the input end of the second optical path H1 corresponding to the light guide part 1, the electric signal is output to the second module in the electronic device from the output end of the second optical path H1 after passing through the second optical path H1, the second module obtains a signal parameter Data1 of the electric signal, and finally obtains the intensity of the electric signal according to the signal parameter Data1 of the electric signal. After that, the second module may send the trigger voltage to the sending control module, so that the first module outputs the second voltage V12 to the light guide portion 1 according to the trigger voltage, so as to convert the light guide portion 1 from the light transmitting state to the light non-transmitting state. Thereby completing the process of obtaining the intensity of the optical signal received by the light guide to be detected.
After that, similarly to the case where the light guide unit 1 is the detection light guide unit, the first module outputs the second voltage V21 to the light guide unit with the light guide unit 2 as the detection light guide unit, so that the light guide unit 2 is switched from the opaque state to the transmissive state. The optical signal is received by the photoelectric converter corresponding to the light guide part 2 after passing through the light guide part 2 in the light transmission state, the photoelectric converter converts the received optical signal into an electric signal and outputs the electric signal to the input end of the second optical path H2 corresponding to the light guide part 2, the electric signal is output to the second module in the electronic device from the output end of the second optical path H2 after passing through the second optical path H2, the second module obtains the signal parameter Data2 of the electric signal, and finally obtains the intensity of the electric signal according to the signal parameter Data2 of the electric signal. After that, the second module may send the trigger voltage to the sending control module, so that the first module outputs the second voltage V22 to the light guide portion 2 according to the trigger voltage, so as to convert the light guide portion 2 from the light-transmitting state to the light-proof state.
Based on the electronic device shown in fig. 3, the control process of each light guide portion in the remaining light guide portions as the detection light guide portion is similar to the above process, and specific reference may be made to the corresponding description in the above process, which is not described herein again.
In some embodiments, the electronic device 20 further includes a camera module, in which case step S710 is actively triggered to be executed. As shown in fig. 12, the execution process of step S710 includes steps S1210 to S1230:
step 1210: and acquiring a light source image obtained by shooting a light source providing the optical signal through the camera module at intervals of second preset time.
The camera module is used for shooting a light source image obtained by a light source providing the optical signal, and the light source image can be a light source image in a light source picture obtained by the light source providing the optical signal, or a light source image in a shooting preview interface obtained by the light source providing the optical signal.
It is understood that the camera module may include a front camera and a rear camera. Before acquiring the light source image obtained by shooting the light source providing the optical signal through the camera module, the brightness of each pixel in the image obtained by shooting the light source providing the optical signal through the camera module can be acquired, and when the brightness of each pixel is smaller than a preset brightness threshold value, the camera module can automatically replace the camera to re-shoot the image obtained by shooting the light source providing the optical signal. For example, in an image obtained by shooting a light source providing a light signal by the rear camera, if the brightness of each pixel is less than a preset brightness threshold, the camera module replaces the light source providing the light signal shot by the front camera to obtain a light source image.
The preset brightness threshold may be set by a person skilled in the art according to practical situations, and the embodiment of the present disclosure is not limited thereto.
The second preset time may be set by a person skilled in the art according to practical situations, and is not limited by the embodiment of the present disclosure.
In some embodiments, the front-facing camera and the rear-facing camera each cover at least a wide-angle area of 120 degrees or more.
Step S1220: a first position of a light source in a light source image is acquired.
For example, the brightness of each pixel in the light source image may be obtained, and the position of the pixel with the highest brightness may be used as the first position of the light source in the light source image.
In the light source picture, the brightness of each pixel in the light source picture can be directly acquired, and the position of the pixel with the maximum brightness is taken as the first position of the light source in the light source image.
In the photographing preview interface, a face tracking technology can be simulated, the pixel with the maximum brightness in the photographing preview interface is tracked, and the position of the pixel with the maximum brightness is used as the first position of the light source in the light source image.
Step S1230: the method comprises the steps of obtaining relative position information of each light guide part in a light source image relative to a light source according to a first position of the light source in the light source image and a second position of each light guide part corresponding to the light source image, and obtaining the intensity of a light signal incident from the light guide part according to the relative position information.
For example, the camera module may include a front camera and a rear camera. Taking the rear camera as an example, the rear camera shoots a light source providing a light signal to obtain a light source image, the shape of the light source image is rectangular, and the position closest to the vertex angle of the plane where the rear camera is located in the light source image is taken as the position where the light guide part at the vertex angle corresponds to the second position in the light source image. For example, as shown in fig. 13, a light source image 241 is displayed on the screen 240, and the second position of the light guide portion 1 corresponding to the light source image is a position a in fig. 13.
Similarly, the front camera shoots a light source providing the optical signal to obtain a light source image, the shape of the light source image is rectangular, and the position closest to the top corner of the plane where the front camera is located in the light source image is taken as the position where the light guide part at the top corner corresponds to the second position in the light source image.
The relative position information of each light guide part in the light source image with respect to the light source may be deviation information of each light guide part in the light source image deviating from the light source in the first direction and the second direction; wherein the first direction and the second direction are perpendicular to each other.
Illustratively, as shown in fig. 14, the first center line L1 and the second center line L2 in the light source image are perpendicular to each other and each pass through a center point of the light source image as O. The first center line L1 and the second center line L2 are parallel to two adjacent edges in the light source image, respectively.
A connecting line of a first position G of the light source in the light source image and the center point O is taken as a first connecting line, and a first included angle Z1 between the first connecting line and a first center line L1 is obtained. The second position of a light guide part in the light source image is a vertex B of the upper right corner of the light source image, a connecting line of the second position B and the center point O is taken as a second connecting line, a second included angle Z2 between the second connecting line and the first center line L1 is acquired, and the difference value between the second included angle Z2 and the first included angle Z1 is acquired as deviation information of the light guide part deviating from the light source in the first direction and the second direction in the light source image, so that the light guide part corresponding to the minimum difference value is taken as a target light guide part in the subsequent steps.
Step S720: the light guide unit is determined to be the target light guide unit having the highest intensity of the light signals incident on the plurality of light guide units.
In some embodiments, the intensity of the light signal incident into each light guide portion is directly obtained, and the highest intensity of the incident light signal is taken as the target light guide portion. In some embodiments, in the case where the intensity of the light signal incident from the light guide part is acquired from the relative position information, the light guide part closest to the light source in the relative position is taken as the target light guide part. For example, as shown in fig. 14, for a light guide part corresponding to the upper right corner, the difference between the second included angle Z2 and the first included angle Z1 is acquired as deviation information that the light guide part deviates from the light source in the first direction and the second direction in the light source image. In this case, the deviation information corresponding to all the light guide portions is obtained, and the light guide portion corresponding to the minimum difference value is set as the target light guide portion.
Step S730: the target light guide part is controlled to be in a light transmission state, and the other light guide parts are controlled to be in a light-tight state.
As shown in fig. 10, the light signal receiving time slot outputs a corresponding voltage V to the target light guiding portion, so that the target light guiding portion is converted from the opaque state to the transparent state. In this case, since no voltage is output to the remaining light guide portions other than the target light guide portion among the plurality of light guide portions, the remaining light guide portions are in an opaque state where visible light communication is not possible. The time when the target light guide portion is in a light-transmitting state is the time corresponding to the rectangle corresponding to DL in fig. 10.
The embodiment of the application also provides a visible light communication control device of the electronic equipment, wherein a plurality of light guide parts are arranged on the shell of the electronic equipment, and the plurality of light guide parts can be switched between a light-transmitting state and a light-tight state. As shown in fig. 15, the visible light communication control apparatus 1500 of the electronic device includes:
an obtaining module 1510 is configured to obtain the intensity of the light signal incident from each light guide portion.
The determining module 1520 is configured to determine that the highest intensity of the light signals incident on the plurality of light guide portions is the target light guide portion.
And the control module 1530 is configured to control the target light guide part to be in a light-transmitting state, and control the other light guide parts to be in a light-tight state.
The visible light communication control device of the electronic device in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiments of the present application are not particularly limited.
The visible light communication control device of the electronic device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The visible light communication control device of the electronic device provided in the embodiment of the present application can implement each process implemented by the visible light communication control device of the electronic device in the method embodiments of fig. 7 to 9 and fig. 11 and 12, and for avoiding repetition, details are not described here again.
In an embodiment of the present application, a housing of an electronic device is provided with a plurality of light guide portions, and the plurality of light guide portions may be switched between a light-transmitting state and a light-non-transmitting state. The purpose of automatically selecting a target light guide part from a plurality of light guide parts to receive an optical signal and perform visible light communication is achieved. Because the intensity of the optical signal received by the target light guide part is greater than that of the optical signal received by any of the rest of the plurality of light guide parts, the optical signal is received by the target light guide part, and the electronic device can be ensured to have the optimal optical signal receiving performance.
Optionally, as shown in fig. 16, an electronic device 1600 further provided in an embodiment of the present application includes a processor 1610, a memory 1620, and a program or an instruction stored in the memory 1620 and executable on the processor 1610, where the program or the instruction is executed by the processor 1610 to implement each process of the visible light communication control method embodiment of the electronic device, and can achieve the same technical effect, and no further description is provided here to avoid repetition.
It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and the non-mobile electronic devices described above.
Fig. 17 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 1700 includes, but is not limited to: radio frequency unit 1701, network module 1702, audio output unit 1703, input unit 1704, sensor 1705, display unit 1706, user input unit 1707, interface unit 1708, memory 1709, and processor 1710.
Those skilled in the art will appreciate that the electronic device 1700 may also include a power supply (e.g., a battery) for powering the various components, and that the power supply may be logically coupled to the processor 1710 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. The electronic device structure shown in fig. 17 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description thereof is omitted.
Wherein, the processor 1710 is configured to obtain the intensity of the optical signal incident from each optical guide portion; determining the highest intensity of the light signals incident into the plurality of light guide portions as a target light guide portion; the target light guide part is controlled to be in a light transmission state, and the other light guide parts are controlled to be in a light-tight state. In an embodiment of the present application, a housing of an electronic device is provided with a plurality of light guide portions, and the plurality of light guide portions can be switched between a light-transmitting state and a light-opaque state. The purpose of automatically selecting a target light guide part from a plurality of light guide parts to receive an optical signal and perform visible light communication is achieved. Because the intensity of the optical signal received by the target light guide part is greater than that of the optical signal received by any of the rest of the plurality of light guide parts, the optical signal is received by the target light guide part, and the electronic device can be ensured to have the optimal optical signal receiving performance.
It should be understood that in the embodiment of the present application, the input Unit 1704 may include a Graphics Processing Unit (GPU) 17041 and a microphone 17042, and the Graphics Processing Unit 17041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1706 may include a display panel 17061, and the display panel 17061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. User input unit 1707 includes a touch panel 17071 and other input devices 17072. A touch panel 17071, also referred to as a touch screen. The touch panel 17071 may include two parts, a touch detection device and a touch controller. Other input devices 17072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 1709 may be used to store software programs as well as various data, including but not limited to application programs and an operating system. The processor 1710 can integrate an application processor, which primarily handles operating systems, user interfaces, application programs, and the like, and a modem processor, which primarily handles wireless communications. It is to be appreciated that the modem processor described above may not be integrated into processor 1710.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the visible light communication control method for the electronic device, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the visible light communication control method embodiment of the electronic device, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (15)
1. A visible light communication control method is applied to an electronic device, and is characterized in that a shell of the electronic device is provided with a plurality of light guide parts, and the light guide parts can be switched between a light transmission state and a light-tight state, wherein the light guide parts can perform visible light communication in the light transmission state, and cannot perform visible light communication in the light-tight state, and the method comprises the following steps:
acquiring the intensity of the light signal incident from each light guide portion;
determining the highest intensity of the light signals incident into the plurality of light guide parts as a target light guide part;
controlling the target light guide part to be in a light transmission state, controlling the rest of the light guide parts to be in a light-tight state,
wherein the electronic device further comprises: a camera module;
the acquiring of the intensity of the light signal incident from each light guide portion includes:
acquiring a light source image obtained by shooting a light source providing a light signal through the camera module at intervals of second preset time;
acquiring a first position of the light source in the light source image;
obtaining relative position information of each light guide part in the light source image relative to the light source according to a first position of the light source in the light source image and a second position of each light guide part in the light source image, and acquiring the intensity of a light signal incident from the light guide part according to the relative position information.
2. The method according to claim 1, wherein the obtaining the intensity of the light signal incident from each light guide part comprises:
under the condition that the optical signal is interrupted and the interruption time is longer than a first preset time, sequentially using the plurality of light guide parts as light guide parts to be detected;
and acquiring the intensity of the optical signal received by the light guide part to be detected, and taking the intensity of the optical signal as the intensity of the optical signal corresponding to the light guide part to be detected.
3. The method of claim 2, wherein the electronic device further comprises: a plurality of first optical paths and a rotatable optical path receiver, wherein the plurality of first optical paths correspond to the plurality of light guide parts one to one, and the input ends of the first optical paths are connected with the corresponding light guide parts;
the obtaining of the intensity of the optical signal received by the light guide part to be detected includes:
taking a first optical path corresponding to the light guide part to be detected as a target optical path, and controlling the optical path receiver to rotate to a position where the input end of the optical path receiver is opposite to the output end of the target optical path;
receiving an optical signal output from the optical path receiver after passing through the target optical path and the optical path receiver in sequence;
converting the received optical signal into an electrical signal;
and obtaining the intensity of the electric signal according to the signal parameters of the electric signal, and taking the intensity of the electric signal as the intensity of the optical signal corresponding to the light guide part to be detected.
4. The method of claim 2, wherein the electronic device further comprises: the plurality of second optical paths correspond to the plurality of photoelectric converters one by one, the plurality of second optical paths correspond to the plurality of light guide portions one by one, and input ends of the second optical paths are connected with the corresponding light guide portions through the corresponding photoelectric converters;
the obtaining of the intensity of the optical signal received by the light guide part to be detected includes:
receiving an electric signal input through a second optical path corresponding to the light guide part to be detected; the electrical signal is obtained by performing photoelectric conversion on the optical signal received by the light guide part to be detected by the photoelectric converter connected with the light guide part to be detected;
and obtaining the intensity of the electric signal according to the signal parameters of the electric signal, and taking the intensity of the electric signal as the intensity of the optical signal corresponding to the light guide part to be detected.
5. The method of claim 1, wherein the obtaining the first position of the illuminant in the illuminant picture comprises:
and acquiring the brightness of each pixel in the light source image, and taking the position of the pixel with the maximum brightness as the first position of the light source in the light source image.
6. The method according to claim 1 or 5, wherein the information about the relative position of each light guide part in the light source image with respect to the light source comprises:
deviation information of each light guide part in the light source image deviating from the light source in a first direction and a second direction; wherein the first direction and the second direction are perpendicular to each other.
7. A visible light communication control apparatus of an electronic device, wherein a housing of the electronic device is provided with a plurality of light guide portions that are switchable between a light transmissive state in which visible light communication is possible and a light opaque state in which visible light communication is not possible, the apparatus comprising:
an acquisition module for acquiring intensity of the optical signal incident from each light guide portion;
a determining module, configured to determine that a highest intensity of the optical signals incident into the plurality of light guide portions is a target light guide portion; and the number of the first and second groups,
a control module for controlling the target light guide part to be in a light transmission state and controlling the rest of the light guide parts to be in a light-tight state,
wherein the electronic device further comprises: a camera module;
the acquisition module acquires intensity of a light signal incident from each light guide portion, and includes:
acquiring a light source image obtained by shooting a light source providing a light signal through the camera module at intervals of second preset time;
acquiring a first position of the light source in the light source image;
obtaining relative position information of each light guide part in the light source image relative to the light source according to a first position of the light source in the light source image and a second position of each light guide part in the light source image, and acquiring the intensity of a light signal incident from the light guide part according to the relative position information.
8. An electronic device, comprising: a housing provided with a plurality of light guide portions that are in a light transmissive state or a light non-transmissive state, wherein the plurality of light guide portions are capable of visible light communication in the light transmissive state and incapable of visible light communication in the light non-transmissive state, and at most one light guide portion is in the light transmissive state at the same time,
wherein the electronic device further comprises:
the optical signal acquisition device is used for acquiring optical signals and converting the optical signals into electric signals; and the number of the first and second groups,
the processor is connected with the optical signal acquisition device to receive the electric signal;
wherein the processor determines the intensity of the optical signal corresponding to each of the plurality of light guide portions according to the electrical signal, and controls the target light guide portion to be in a light-transmitting state and the rest of the light guide portions to be in a light-proof state by using the light signal with the highest intensity incident into the plurality of light guide portions as the target light guide portion,
wherein, the optical signal collection device includes: a camera module which obtains a light source image by converting an optical signal into an electrical signal and outputs the light source image to the processor,
the determining the intensity of the light signal corresponding to each light guide part in the plurality of light guide parts comprises:
acquiring a light source image obtained by shooting a light source providing a light signal through the camera module at intervals of second preset time;
acquiring a first position of the light source in the light source image;
obtaining relative position information of each light guide part in the light source image relative to the light source according to a first position of the light source in the light source image and a second position of each light guide part in the light source image, and acquiring the intensity of a light signal incident from the light guide part according to the relative position information.
9. The electronic device according to claim 8, wherein the housing has a flat plate shape, the housing includes a plurality of top corners, and the plurality of light guide portions include light guide portions provided at each of the top corners, respectively.
10. The electronic device of claim 9, wherein the plurality of light directing portions further comprises at least one light directing portion disposed on a side of the housing.
11. The electronic device of claim 8, wherein the optical signal collection device comprises: a plurality of first optical paths and a rotatable optical path receiver, wherein the plurality of first optical paths correspond to the plurality of light guide parts one to one, and the input ends of the first optical paths are connected with the corresponding light guide parts; the output end of the first optical path is opposite to a position where the optical path receiver is rotated.
12. The electronic device of claim 8, wherein the optical signal collection device comprises: the plurality of second optical paths correspond to the plurality of photoelectric converters one by one, the plurality of second optical paths correspond to the plurality of light guide portions one by one, and input ends of the second optical paths are connected with the corresponding light guide portions through the corresponding photoelectric converters.
13. Electronic device according to any of claims 8-12, characterized in that the light guiding part is made of an electrochromic material.
14. An electronic device comprising a memory and a processor, the memory for storing a computer program; the processor is adapted to execute the computer program to implement the method according to any of claims 1-6.
15. A readable storage medium, on which a program or instructions are stored, which when executed by a processor, implement the method of any one of claims 1-6.
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