CN110649972A - Three-dimensional display visible light communication system and method - Google Patents
Three-dimensional display visible light communication system and method Download PDFInfo
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- CN110649972A CN110649972A CN201911039103.8A CN201911039103A CN110649972A CN 110649972 A CN110649972 A CN 110649972A CN 201911039103 A CN201911039103 A CN 201911039103A CN 110649972 A CN110649972 A CN 110649972A
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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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/398—Synchronisation thereof; Control thereof
Abstract
The invention discloses a three-dimensional display visible light communication system and a method, comprising a three-dimensional display, a transmitting signal controller and a receiving signal controller; the three-dimensional display comprises a plurality of light sources which are arranged in an n x m x v three-dimensional matrix, the emission signal controller is respectively connected with each light source, and the emission signal controller is used for controlling the light sources to be turned on or off to display a preset image; the emission signal controller is also used for controlling the lighted light source to flicker at a preset frequency so as to emit a preset light emission signal; the receiving signal controller is used for receiving the preset light emission signal and determining the preset communication information transmitted by the three-dimensional display according to the preset light emission signal, so that the three-dimensional display has the functions of displaying and visible light communication, and the user experience is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a three-dimensional display visible light communication system and a three-dimensional display visible light communication method.
Background
As is known, the real world is a stereoscopic space, and because objects have a three-dimensional size and spatial position relationship, only a stereoscopic display can truly reproduce the scenes of the objective world, that is, the stereoscopic display shows the depth sensation, the layering sensation, the reality sensation and the realistic distribution state of images.
Disclosure of Invention
The invention provides a three-dimensional display visible light communication system and a three-dimensional display visible light communication method, so that a three-dimensional display has the functions of display and visible light communication at the same time, and the user experience is improved.
In order to achieve the above object, an embodiment of an aspect of the present invention provides a three-dimensional display visible light communication system, including a three-dimensional display, a transmission signal controller, and a reception signal controller; the three-dimensional display comprises a plurality of light sources which are arranged in an n x m x v three-dimensional matrix, the emission signal controller is respectively connected with each light source, and the emission signal controller is used for controlling the light sources to be turned on or off to display a preset image; the emission signal controller is also used for controlling the lighted light source to flicker at a preset frequency so as to emit a preset light emission signal; the receiving signal controller is used for receiving the preset light emitting signal and determining preset communication information transmitted by the three-dimensional display according to the preset light emitting signal; the preset frequency is smaller than the human eye recognition frequency, and n, m and v are positive integers larger than 1.
Optionally, n-m-v, n being a positive integer greater than 1.
Optionally, the light source is an LED lamp.
Optionally, the transmission signal controller includes: the device comprises a signal input module, a signal modulation module and a driving module; the signal input module is electrically connected with the signal modulation module; the signal modulation module is electrically connected with the driving module, and the driving module is electrically connected with each light source respectively; the signal input module is used for combining binary sequence display data corresponding to the preset image and visible light communication data of a binary sequence corresponding to the preset communication information to generate new binary sequence data and sending the new binary sequence data to the signal modulation module; the signal modulation module is used for modulating and coding the new binary sequence data into a first electric signal and sending the first electric signal to the driving module; the driving module is used for driving the three-dimensional display to display a preset image according to the first electric signal and driving the light source lightened in the three-dimensional display to flicker at a preset frequency.
Optionally, the three-dimensional matrix includes a first direction, a second direction and a third direction which are perpendicular to each other two by two; the three-dimensional display is sequentially provided with m light sources along the first direction; the three-dimensional display is sequentially provided with n light sources along the second direction; the three-dimensional display is sequentially provided with v light sources along the third direction; the driving module includes: v first driving chips and n × m second driving chips, wherein a plane formed by the first direction and the second direction is a first plane; the anodes of the light sources which are positioned in the same plane and are parallel to the first plane are connected with the same first driving chip; and the cathodes of the light sources in the same row parallel to the third direction are connected with the same second driving chip.
Optionally, the reception signal controller includes: the device comprises a photoelectric detection module, a voltage comparison module and a signal demodulation module; the photoelectric detection module is electrically connected with the voltage comparison module, and the voltage comparison module is electrically connected with the signal demodulation module; the photoelectric detection module is used for converting the preset light emission signal into a second electric signal; the voltage comparison module is used for converting the second electric signal into the coded binary sequence visible light communication data; the signal demodulation module is used for decoding the coded binary sequence visible light communication data and determining read communication information according to the binary sequence visible light communication data.
Optionally, the reception signal controller includes: the device comprises a photoelectric detection module, an automatic gain module, a voltage comparison module and a signal demodulation module; the photoelectric detection module is electrically connected with the automatic gain module; the automatic gain module is electrically connected with the voltage comparison module, and the voltage comparison module is electrically connected with the signal demodulation module; the photoelectric detection module is used for converting the preset light emission signal into a third electric signal; the automatic gain module is used for adjusting the amplitude of the third electric signal into a fourth electric signal with the same amplitude according to the relative distance between the three-dimensional display and the photoelectric detection module; the voltage comparison module is used for converting the fourth electric signal into the coded binary sequence visible light communication data; the signal demodulation module is used for decoding the coded binary sequence visible light communication data and determining read communication information according to the binary sequence visible light communication data.
In order to achieve the above object, another embodiment of the present invention provides a three-dimensional display visible light communication method, including the following steps: the method comprises the steps that a transmitting signal controller obtains a preset image display instruction and a preset communication information sending instruction; the emission signal controller controls each light source of the three-dimensional display to be turned on or turned off according to the preset image display instruction so as to display a preset image; the emission signal controller sends an instruction to control the lighted light source to flicker at a preset frequency according to preset communication information so as to emit a preset light emission signal; and the receiving signal controller receives the preset light emission signal and determines preset communication information transmitted by the three-dimensional display according to the preset light emission signal, wherein the preset frequency is less than the human eye recognition frequency.
Optionally, the emission signal controller controls each light source of the three-dimensional display to be turned on or off according to the preset image display instruction to display a preset image; and the emission signal controller sends an instruction to control the lighted light source to flicker at a preset frequency according to preset communication information so as to emit a preset light emission signal, and the emission signal controller comprises: acquiring binary sequence display data corresponding to the preset image and binary sequence visible light communication data corresponding to the preset communication information; generating new binary sequence data according to the combination of the binary sequence display data and the binary sequence visible light communication data; modulating and encoding the new binary sequence data into a first electrical signal; and driving the three-dimensional display to display a preset image according to the first electric signal, and driving the lighted light source in the three-dimensional display to flicker at a preset frequency.
Optionally, the receiving signal controller receives the preset light emitting signal, and determines preset communication information transmitted by the three-dimensional display according to the preset light emitting signal, including: converting the received preset light emission signal into a second electrical signal; adjusting the amplitude of the second electrical signal to a third electrical signal with the same amplitude according to the relative distance between the three-dimensional display and the photoelectric detection module; converting the third electrical signal to the encoded binary sequence of visible light communication data; and decoding the coded binary sequence visible light communication data, and determining the read communication information according to the binary sequence visible light communication data.
According to the three-dimensional display visible light communication system and the three-dimensional display visible light communication method, the preset image display instruction and the preset communication information sending instruction can be obtained through the transmitting signal controller; controlling each light source of the three-dimensional display to be turned on or off according to a preset image display instruction through the emission signal controller so as to display a preset image; the transmitting signal controller sends an instruction according to the preset communication information to control the lighted light source to flicker at a preset frequency so as to transmit a preset light emitting signal; and then receiving a preset light emission signal through the receiving signal controller, and determining preset communication information transmitted by the three-dimensional display according to the preset light emission signal, wherein the preset frequency is smaller than the human eye identification frequency, so that the three-dimensional display has the functions of displaying and visible light communication, and the user experience is improved.
Drawings
FIG. 1 is a block diagram of a three-dimensional display visible light communication system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a three-dimensional display in a three-dimensional display visible light communication system according to an embodiment of the present invention;
FIG. 3 is a block diagram of a three-dimensional display visible light communication system according to an embodiment of the present invention;
FIG. 4 is a block diagram of a three-dimensional display visible light communication system according to another embodiment of the present invention;
FIG. 5 is a block diagram of a three-dimensional display visible light communication system according to yet another embodiment of the present invention;
fig. 6 is a flowchart of a three-dimensional display visible light communication method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a block diagram of a three-dimensional display visible light communication system according to an embodiment of the present invention. As shown in fig. 1 and 2, the three-dimensional display visible light communication system includes: the three-dimensional display device comprises a three-dimensional display 1, a transmitting signal controller 2 and a receiving signal controller 3; the three-dimensional display 1 comprises a plurality of light sources 4, the light sources 4 are arranged in an n x m x v three-dimensional matrix, the emission signal controller 2 is respectively connected with each light source 4, and the emission signal controller 4 is used for controlling the light sources 4 to be turned on or off to display a preset image; the emission signal controller 4 is further configured to control the lighted light source to blink at a preset frequency to emit a preset light emission signal; the receiving signal controller 3 is used for receiving a preset light emitting signal and determining preset communication information transmitted by the three-dimensional display 1 according to the preset light emitting signal; the preset frequency is smaller than the human eye recognition frequency, and n, m and v are positive integers larger than 1.
Optionally, n is a positive integer greater than 1, and preferably, n may be selected to be 3,6, or 8.
Optionally, the light source 4 is an LED lamp.
It should be noted that the operating principle of the three-dimensional display visible light communication system is as follows:
the preset image may be a static image or a dynamic image. The static images can be three-dimensional images of kittens, puppies and the like; the dynamic image can be a stereo cat or a dog which rotates anticlockwise or clockwise along the three-dimensional display, wherein the dynamic image is displayed only when the image is displayed in each frame, the LED lamps at different positions in the three-dimensional display 1 are controlled to be turned on or off, and the dynamic display looks continuous and smooth due to the visual difference of human eyes.
The preset image to be displayed by the three-dimensional display 1 may be prestored in the transmission signal controller 2, the binary sequence display data capable of displaying the preset image is prestored in the transmission signal controller 2, and when the user triggers to display the preset image, the transmission signal controller 2 drives the three-dimensional display 1 to display the preset image according to the binary sequence display data.
In addition, when the three-dimensional display 1 displays a preset image, a part of LED lamps in the three-dimensional display 1 are turned on, and the emission signal controller 2 also controls the turned-on LED lamps to blink at a preset frequency and transmits preset communication information through the blinking of the LED lamps.
It can be understood that the flashing frequencies of all the lighted LED lamps are consistent, and when the preset communication information is different, the flashing frequencies are different. In other words, when the blinking frequency is different, the transmitted communication information is different.
For an LED lamp which is lighted in the three-dimensional display 1, transmitting a byte in a period t, and lighting the LED lamp at t/5 time; at 2t/5 time, the LED lamp is lightened; when the time is 3t/5, the LED lamp is lightened; at 4t/5 time, the LED lamp is lighted; at time t, the LED lamp is turned off; if "1" is represented by lighting and "0" is represented by lighting, the information transmitted in the period t is (11110), and may represent one byte of information, such as the letter "a". And the flashing frequency of the lighted LED lamp is less than the human eye identification frequency, and the LED lamp is always normally lighted when seen by a user, but the byte information is transmitted. The flicker frequency can be modulated by three Modulation modes, namely Pulse Width Modulation (PWM), Pulse Phase Modulation (PPM), and Differential Pulse Phase Modulation (DPPM).
It should be noted that, when the three-dimensional display 1 displays a dynamic image, the change time of each frame of the dynamic image is longer than the period t of transmitting one byte, but is smaller than the visual time difference of human eyes.
Alternatively, as shown in fig. 3, the transmission signal controller 2 includes: the device comprises a signal input module 5, a signal modulation module 6 and a driving module 7; the signal input module 5 is electrically connected with the signal modulation module 6; the signal modulation module 6 is electrically connected with the driving module 7, and the driving module 7 is electrically connected with each light source 4 respectively; the signal input module 5 is configured to combine binary sequence display data corresponding to a preset image and visible light communication data of a binary sequence corresponding to preset communication information to generate new binary sequence data, and send the new binary sequence data to the signal modulation module 6; the signal modulation module 6 is used for modulating and coding the new binary sequence data into a first electric signal and sending the first electric signal to the driving module 7; the driving module 7 is configured to drive the three-dimensional display 1 to display a preset image according to the first electrical signal, and drive a light source lit in the three-dimensional display 1 to blink at a preset frequency.
Optionally, as shown in fig. 2, the three-dimensional matrix includes a first direction, a second direction and a third direction which are perpendicular to each other two by two; the three-dimensional display is sequentially provided with m light sources along a first direction; the three-dimensional display is sequentially provided with n light sources along a second direction; along the third direction, the three-dimensional display is sequentially provided with v light sources; the driving module includes: v first drive chips and n × m second drive chips, wherein a plane formed by the first direction and the second direction is a first plane; the anodes of the light sources which are positioned in the same plane and are parallel to the first plane are connected with the same first driving chip; and the cathodes of the light sources in the same column parallel to the third direction are connected with the same second driving chip.
Wherein a plurality of light sources are arranged in a three-dimensional matrix to form a three-dimensional display as shown in fig. 2. For example, the first direction may be the direction of the arrows labeled in fig. 2, and then m has a value of 5, the second direction may be the direction into the page perpendicular to the first direction, and then n has a value of 4, and the third direction may be the upward direction perpendicular to the first direction, and then v has a value of 5. The three values n-m-v may be the same, forming a cube, so that more symmetrical images can be displayed when displaying images. Or the number of the two directions may be the same, and the number of the other directions may be different, which is not limited herein.
The first driver chip may be an APM4953 chip, and the second driver chip may be a 74HC5965N chip.
For example, n-m-v-8, two different singlechips are used at two ends of the LED to control the LED. Wherein, the LEDs of each layer are connected by a common anode, and each layer is connected with a single chip microcomputer (for example, APM4953 chip), and the three-dimensional display has eight layers, so 8 APM4953 chips are needed. And the LEDs in each column are connected by a common cathode, and each column is connected with another single chip microcomputer (for example, 74HC5965N chips), so that 64 74HC5965N chips are needed for each layer because 64 LEDs are arranged. The APM4953 chip will apply a voltage to the LED anode of each layer in turn, and the 74HC5965N chip that controls the desired lit LED in each layer will also apply a voltage to the LED cathode, causing the voltage difference across the LED to be greater than the dead zone voltage, causing the LED to emit light. And the transmission of visible light communication data can be completed by modulating the APM4953 chip.
Alternatively, as shown in fig. 4, the reception signal controller 3 includes: the device comprises a photoelectric detection module 8, a voltage comparison module 9 and a signal demodulation module 10; the photoelectric detection module 8 is electrically connected with the voltage comparison module 9, and the voltage comparison module 9 is electrically connected with the signal demodulation module 10; the photoelectric detection module 8 is used for converting a preset light emission signal into a second electric signal; the voltage comparison module 9 is used for converting the second electric signal into coded binary sequence visible light communication data; the signal demodulation module 10 is configured to decode the coded binary sequence visible light communication data and determine the read communication information according to the binary sequence visible light communication data.
Alternatively, as shown in fig. 5, the reception signal controller 3 includes: the device comprises a photoelectric detection module 8, an automatic gain module 11, a voltage comparison module 9 and a signal demodulation module 10; the photoelectric detection module 8 is electrically connected with the automatic gain module 11; the automatic gain module 11 is electrically connected with the voltage comparison module 9, and the voltage comparison module 9 is electrically connected with the signal demodulation module 10; the photoelectric detection module 8 is used for converting a preset light emission signal into a third electric signal; the automatic gain module 11 is configured to adjust the amplitude of the third electrical signal to a fourth electrical signal with the same amplitude according to the relative distance between the three-dimensional display 1 and the photodetection module 8; the voltage comparison module 9 is used for converting the fourth electric signal into coded binary sequence visible light communication data; the signal demodulation module 10 is configured to decode the coded binary sequence visible light communication data and determine the read communication information according to the binary sequence visible light communication data.
In general, the signal amplification circuits have fixed gains (amplification factors), but in the three-dimensional display 1, if the three-dimensional display 1 displays a static image, when the distance between the received signal controller 3 and the three-dimensional display 1 is changed, when the distance between the photoelectric detection module 8 in the received signal controller 3 is far, the intensity of the received optical signal is weak, and when the distance is near, the intensity of the received optical signal is strong, and further the third electrical signal passing through the photoelectric detection module 8 is weak or strong, if a uniform amplification factor is used, when the third electrical signal is weak in strength, after the same amplification factor, it may be that the voltage comparison module 9 still cannot identify, when the third electrical signal has a strong strength, after the third electrical signal is amplified by the same factor, it is possible that the voltage comparison module 9 is saturated in reception due to too strong signal and cannot recognize data.
If the three-dimensional display 1 displays a dynamic image, the transmitting end to the receiving end is usually a point-to-point transmission due to optical communication even if the distance between the receiving signal controller 3 and the three-dimensional display 1 is kept constant. For three-dimensional display optical communication, the distances from different light sources to the receiving signal controller 3 are different, so that the light intensity received by the receiving signal controller 3 is greatly changed, the power received by the far-end LED is smaller, and the power received by the near-end LED is larger. If the unified amplification factor is used, if the amplification factor is too small, the amplification factor of the light power received by the far-end LED is insufficient, and data cannot be received. If the amplification factor is too large, the amplification factor of the optical power received by the near-end LED is too large, so that the receiving end is saturated and cannot receive data.
The amplification of the automatic gain module 11 is thereby set adjustable. The amplification factor is in direct proportion to the relative distance between the three-dimensional display 1 and the received signal controller 3, that is, the farther the distance is, the larger the amplification factor is, the closer the distance is, the smaller the amplification factor is, so that the third electric signal passing through the automatic gain module 11 is adjusted to be the fourth electric signal with the same amplitude. So that the voltage comparison module 9 receives the fourth electrical signal with the intensity approaching the same. Wherein the relative distance between the three-dimensional display 1 and the received signal controller 3 can be measured by an infrared distance measuring sensor. An infrared ranging sensor may be disposed at the signal receiving end. The fourth electrical signal is passed through a voltage comparison module 9 to generate encoded binary sequence visible light communication data.
The voltage comparison module 9 is provided with a threshold voltage, the threshold voltage may be 1/2 of the same amplitude value as the fourth electrical signal, after the fourth electrical signal passes through the voltage comparison module 9, a signal with an amplitude value larger than the threshold voltage outputs a high level 1, and a signal with an amplitude value smaller than the threshold voltage outputs a low level 0, so as to generate coded binary sequence visible light communication data for signal demodulation, decoding and reading of communication information.
Based on the same inventive concept, an embodiment of the present invention provides a three-dimensional display visible light communication method, as shown in fig. 6, including the following steps:
s1, the emission signal controller acquires a preset image display instruction and a preset communication information sending instruction; the emission signal controller controls each light source of the three-dimensional display to be turned on or off according to a preset image display instruction so as to display a preset image;
s2, the emission signal controller sends an instruction according to the preset communication information to control the lighted light source to flicker at a preset frequency so as to emit a preset light emission signal;
and S3, the receiving signal controller receives the preset light emitting signal and determines the preset communication information transmitted by the three-dimensional display according to the preset light emitting signal, wherein the preset frequency is less than the human eye recognition frequency.
Optionally, the emission signal controller controls each light source of the three-dimensional display to be turned on or off according to a preset image display instruction to display a preset image; and the emission signal controller sends an instruction to control the lighted light source to flicker at a preset frequency according to preset communication information so as to emit a preset light emission signal, and the emission signal controller comprises: acquiring binary sequence display data corresponding to a preset image and binary sequence visible light communication data corresponding to preset communication information; generating new binary sequence data according to the combination of the binary sequence display data and the binary sequence visible light communication data; modulating and coding the new binary sequence data into a first electric signal; and driving the three-dimensional display to display a preset image according to the first electric signal, and driving a lighted light source in the three-dimensional display to flicker at a preset frequency.
Optionally, the receiving signal controller receives a preset light emitting signal, and determines preset communication information transmitted by the three-dimensional display according to the preset light emitting signal, including: converting the received preset optical emission signal into a second electrical signal; adjusting the amplitude of the second electrical signal to a third electrical signal with the same amplitude according to the relative distance between the three-dimensional display and the photoelectric detection module; converting the third electrical signal into coded binary sequence visible light communication data; the encoded binary sequence visible light communication data is decoded and the read communication information is determined from the binary sequence visible light communication data.
For related content, please refer to the description in the three-dimensional display visible light communication system, which is not described herein again.
According to the three-dimensional display visible light communication system and the three-dimensional display visible light communication method, the preset image display instruction and the preset communication information sending instruction can be obtained through the transmitting signal controller; controlling each light source of the three-dimensional display to be turned on or off according to a preset image display instruction through the emission signal controller so as to display a preset image; the transmitting signal controller sends an instruction according to the preset communication information to control the lighted light source to flicker at a preset frequency so as to transmit a preset light emitting signal; and then receiving a preset light emission signal through the receiving signal controller, and determining preset communication information transmitted by the three-dimensional display according to the preset light emission signal, wherein the preset frequency is smaller than the human eye identification frequency, so that the three-dimensional display has the functions of displaying and visible light communication, and the user experience is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A visible light communication system for three-dimensional display is characterized by comprising a three-dimensional display, a transmitting signal controller and a receiving signal controller;
the three-dimensional display comprises a plurality of light sources which are arranged in an n x m x v three-dimensional matrix, the emission signal controller is respectively connected with each light source, and the emission signal controller is used for controlling the light sources to be turned on or off to display a preset image;
the emission signal controller is also used for controlling the lighted light source to flicker at a preset frequency so as to emit a preset light emission signal;
the receiving signal controller is used for receiving the preset light emitting signal and determining preset communication information transmitted by the three-dimensional display according to the preset light emitting signal;
the preset frequency is smaller than the human eye recognition frequency, and n, m and v are positive integers larger than 1.
2. The visible light communication system for three-dimensional display according to claim 1, wherein n is a positive integer greater than 1.
3. The visible light communication system of three-dimensional display according to claim 1, wherein the light source is an LED lamp.
4. The visible light communication system for three-dimensional display according to claim 1, wherein the emission signal controller comprises: the device comprises a signal input module, a signal modulation module and a driving module; the signal input module is electrically connected with the signal modulation module; the signal modulation module is electrically connected with the driving module, and the driving module is electrically connected with each light source respectively;
the signal input module is used for combining binary sequence display data corresponding to the preset image and visible light communication data of a binary sequence corresponding to the preset communication information to generate new binary sequence data and sending the new binary sequence data to the signal modulation module;
the signal modulation module is used for modulating and coding the new binary sequence data into a first electric signal and sending the first electric signal to the driving module;
the driving module is used for driving the three-dimensional display to display a preset image according to the first electric signal and driving the light source lightened in the three-dimensional display to flicker at a preset frequency.
5. The visible light communication system of claim 4, wherein the three-dimensional matrix comprises a first direction, a second direction and a third direction perpendicular to each other;
the three-dimensional display is sequentially provided with m light sources along the first direction; the three-dimensional display is sequentially provided with n light sources along the second direction; the three-dimensional display is sequentially provided with v light sources along the third direction;
the driving module includes: v first driving chips and n × m second driving chips, wherein a plane formed by the first direction and the second direction is a first plane; the anodes of the light sources which are positioned in the same plane and are parallel to the first plane are connected with the same first driving chip; and the cathodes of the light sources in the same row parallel to the third direction are connected with the same second driving chip.
6. The visible light communication system for three-dimensional display according to claim 1, wherein the reception signal controller comprises: the device comprises a photoelectric detection module, a voltage comparison module and a signal demodulation module; the photoelectric detection module is electrically connected with the voltage comparison module, and the voltage comparison module is electrically connected with the signal demodulation module;
the photoelectric detection module is used for converting the preset light emission signal into a second electric signal;
the voltage comparison module is used for converting the second electric signal into the coded binary sequence visible light communication data;
the signal demodulation module is used for decoding the coded binary sequence visible light communication data and determining read communication information according to the binary sequence visible light communication data.
7. The visible light communication system for three-dimensional display according to claim 1, wherein the reception signal controller comprises: the device comprises a photoelectric detection module, an automatic gain module, a voltage comparison module and a signal demodulation module; the photoelectric detection module is electrically connected with the automatic gain module; the automatic gain module is electrically connected with the voltage comparison module, and the voltage comparison module is electrically connected with the signal demodulation module;
the photoelectric detection module is used for converting the preset light emission signal into a third electric signal;
the automatic gain module is used for adjusting the amplitude of the third electric signal into a fourth electric signal with the same amplitude according to the relative distance between the three-dimensional display and the photoelectric detection module; the voltage comparison module is used for converting the fourth electric signal into the coded binary sequence visible light communication data; the signal demodulation module is used for decoding the coded binary sequence visible light communication data and determining read communication information according to the binary sequence visible light communication data.
8. A visible light communication method for three-dimensional display is characterized by comprising the following steps:
the method comprises the steps that a transmitting signal controller obtains a preset image display instruction and a preset communication information sending instruction;
the emission signal controller controls each light source of the three-dimensional display to be turned on or turned off according to the preset image display instruction so as to display a preset image;
the emission signal controller sends an instruction to control the lighted light source to flicker at a preset frequency according to preset communication information so as to emit a preset light emission signal;
and the receiving signal controller receives the preset light emission signal and determines preset communication information transmitted by the three-dimensional display according to the preset light emission signal, wherein the preset frequency is less than the human eye recognition frequency.
9. The visible light communication method for three-dimensional display according to claim 8,
the emission signal controller controls each light source of the three-dimensional display to be turned on or turned off according to the preset image display instruction so as to display a preset image;
and the emission signal controller sends an instruction to control the lighted light source to flicker at a preset frequency according to preset communication information so as to emit a preset light emission signal, and the emission signal controller comprises:
acquiring binary sequence display data corresponding to the preset image and binary sequence visible light communication data corresponding to the preset communication information;
generating new binary sequence data according to the combination of the binary sequence display data and the binary sequence visible light communication data;
modulating and encoding the new binary sequence data into a first electrical signal;
and driving the three-dimensional display to display a preset image according to the first electric signal, and driving the lighted light source in the three-dimensional display to flicker at a preset frequency.
10. The visible light communication method for three-dimensional display according to claim 8, wherein the receiving signal controller receives the preset light emitting signal and determines the preset communication information transmitted by the three-dimensional display according to the preset light emitting signal, comprising:
converting the received preset light emission signal into a second electrical signal;
adjusting the amplitude of the second electrical signal to a third electrical signal with the same amplitude according to the relative distance between the three-dimensional display and the photoelectric detection module;
converting the third electrical signal to the encoded binary sequence of visible light communication data;
and decoding the coded binary sequence visible light communication data, and determining the read communication information according to the binary sequence visible light communication data.
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