CN207150596U - A kind of visible light communication device carried out by screen - Google Patents
A kind of visible light communication device carried out by screen Download PDFInfo
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- CN207150596U CN207150596U CN201721067110.5U CN201721067110U CN207150596U CN 207150596 U CN207150596 U CN 207150596U CN 201721067110 U CN201721067110 U CN 201721067110U CN 207150596 U CN207150596 U CN 207150596U
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- light source
- controller
- screen
- receiving module
- photosensitive receiving
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Abstract
The utility model discloses a kind of visible light communication device carried out by screen, it is seen that optical communication apparatus includes：Light source, the first photosensitive receiving module, the second photosensitive receiving module, screen backlight light source, the first controller, second controller, the first connectivity port, second connection end mouth；The input of first controller is connected to the output end of the first photosensitive receiving module, and the input and output control terminal of the first controller connects the first connectivity port, the output end connection light source of the first controller；The input of second controller is connected to the output end of the second photosensitive receiving module, the input and output control terminal connection second connection end mouth of second controller, the output end connection screen backlight light source of second controller.The utility model by the use of screen back light as communication sending device, when screen backlight light source scintillation frequency is more than 60HZ, human eye can not discover the flicker of screen, not influence the normal display of screen.
Description
Technical field
The utility model belongs to technical field of photo communication, leads to more particularly, to a kind of visible ray carried out by screen
T unit.
Background technology
At present, it is seen that optic communication is mainly carried out by LED, i.e., using visible between communication equipment A and communication equipment B
Light sends data, while receives data using light-sensitive element.Although also having (Mobile phone screen is used using what mobile phone screen was communicated
Curtain two-dimensional code display, while use camera scanning Quick Response Code also prime information in the other end), still, this method can disturb screen
The normal display of curtain content, has no great use value.
Utility model content
The defects of for prior art, the utility model proposes it is a kind of by screen carry out visible light communication device,
Its object is to the sending device by the use of the back light of screen as communication, when screen backlight light source scintillation frequency is more than 60HZ
When, human eye can not discover the flicker of screen, not influence the normal display of screen, so as to solve in the prior art because use is taken the photograph
The problem of also prime information can disturb the normal display of screen content as head scanning Quick Response Code.
The utility model provides a kind of visible light communication device carried out by screen, including：Light source, first photosensitive connect
Receive module, the second photosensitive receiving module, screen backlight light source, the first controller, second controller, the first connectivity port, second
Connectivity port；The input of first controller is connected to the output end of the described first photosensitive receiving module, first controller
Input and output control terminal connect first connectivity port, the output end of first controller connects the light source；It is described
The input of second controller is connected to the output end of the described second photosensitive receiving module, the input and output of the second controller
Control terminal connects the second connection end mouth, and the output end of the second controller connects the screen backlight light source.
Further, during work, the first photosensitive receiving module senses the flicker of the screen backlight light source and will
It is conveyed to first controller after being converted into high level or low level；The data that first controller is sent to needs are entered
Output control signal and lighting and extinguishing for the light source is controlled after row processing, the second photosensitive receiving module senses the light
The flicker in source, and it is conveyed to the second controller after being translated into high level or low level；The second controller is to needing
Output control signal and lighting and extinguishing for the screen backlight light source is controlled after the data to be sent are handled, data pass through
The flicker of the screen backlight light source is sent.
Further, when the flicker frequency of the screen backlight light source is more than 60HZ, human eye can not experience lamp
The flicker of light.
In the utility model, a kind of visible light communication method carried out by screen, comprise the steps：
When second controller receives the information of outside network device transmission by second connection end mouth, second controller
The second control signal for controlling screen back light to light or extinguish is exported after handling the information of reception；
The flicker of the screen backlight light source is controlled according to second control signal, and according to the screen backlight light source
Flicker send data；
After the data that the screen backlight light source is sent are received by the first photosensitive receiving module, the first controller is by message
Being sent to after being handled and being reduced by the first connectivity port needs the equipment of the information.
Further, when the light source light represent high level when the light source extinguishing represent low level；Or
When the light source light represent low level when the light source extinguishing represent high level.
Further, when screen backlight light source light represent high level when the screen backlight light source extinguishing represent
Low level；Or when the screen backlight light source light represent low level when the screen backlight light source extinguishing represent high electricity
It is flat.
Further, when screen backlight light source scintillation frequency is more than 60HZ, human eye can not experience the sudden strain of a muscle of light
It is bright.
By the contemplated above technical scheme of the utility model, compared with prior art, due to by screen backlight light
Source sends information, it is not necessary to reinstalls the light source of visible light communication, can be more prone to the reverse link communication of visible light communication
Realize and practical, improve the use value of visible light communication.
Brief description of the drawings
Fig. 1 is the structure principle chart for the visible light communication device carried out by screen that the utility model embodiment provides.
(a) is to upload to walk in the visible light communication method carried out by screen that the utility model embodiment provides in Fig. 2
Rapid specific implementation flow chart.
(b) is to download to walk in the visible light communication method carried out by screen that the utility model embodiment provides in Fig. 2
Rapid specific implementation flow chart.
Wherein, 1 be light source, 2 be the first photosensitive receiving module, 3 be the second photosensitive receiving module, 4 be screen backlight light source,
5 it is the first controller, 6 be second controller, 7 be the first connectivity port, 8 is second connection end mouth.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
Fig. 1 shows the structure for the visible light communication device carried out by screen that the utility model embodiment provides, and is
It is easy to illustrate, illustrate only the part related to the utility model embodiment, details are as follows：
The visible light communication device provided by the utility model carried out by screen includes：Light source 1, the first photosensitive reception mould
Block 2, the second photosensitive receiving module 3, screen backlight light source 4, the first controller 5, second controller 6, the first connectivity port 7,
Two connectivity ports 8；The input of first controller 5 is connected to the output end of the first photosensitive receiving module 2, the first controller 5
Input and output control terminal connects the first connectivity port 7, the output end connection light source 1 of the first controller 5；Second controller 6 it is defeated
Enter the output end that end is connected to the second photosensitive receiving module 3, the input and output control terminal connection second connection end of second controller 6
Mouth 8, the output end connection screen backlight light source 4 of second controller 6.
In the utility model embodiment, light source 1 typically can be arbitrary LED light source；First controller 5 is to needing to send out
The data gone out are handled, and control lighting and extinguishing for light source 1, and lighting for light source 1 represents high level, the extinguishing generation of light source 1
Table low level.Simultaneously also it will be understood that lighting for light source 1 can also represent low level, now, the extinguishing of light source 1 represents high electricity
Flat, data are sent by the flicker of light source 1 (flicker is lighting of mentioning of top and extinguished).When the flicker frequency of light source 1
During more than 60HZ, human eye can not experience the flicker of light.
First photosensitive receiving module 2 senses the flicker of screen backlight light source 4.First photosensitive receiving module 2 is by screen backlight
Lighting for light source 4 is converted into high level, and the extinguishing of screen backlight light source 4 is converted into low level by the first photosensitive receiving module 2, is sent
Enter the first controller 5.It should also be appreciated that the first photosensitive receiving module 2 also can by screen backlight light source 4 light be converted into it is low
The extinguishing of screen backlight light source 4 is converted into high level by level, now, the first photosensitive receiving module 2, is sent into the first controller 5.
Second photosensitive receiving module 3 senses the flicker of light source 1.Lighting for light source 1 is converted into by the second photosensitive receiving module 3
The extinguishing of light source 1 is converted into low level by high level, the second photosensitive receiving module 3, is sent into second controller 6.It should be able to manage simultaneously
Solution, lighting for light source 1 can also be converted into low level by the second photosensitive receiving module 3, and now, the second photosensitive receiving module 3 is by light
The extinguishing in source 1 is converted into high level, is sent into second controller 6.
Screen backlight light source 4 is functionally similar to LED, for providing light source for liquid crystal display, typically can be mobile phone and
The back light that computer display device uses, but it is not limited only to the screen backlight light source of mobile phone and computer.Second controller 6 is to needing
The data to be sent are handled, and control lighting and extinguishing for screen back light 4, and screen backlight light source 4 lights representative
High level, the extinguishing of screen backlight light source 4 represent low level.Simultaneously also it will be understood that lighting for screen backlight light source 4 can also
Low level is represented, now, the extinguishing of screen backlight light source 4 represents high level, and data are sent by the flicker of screen backlight light source 4
Go out.When the flicker frequency of screen backlight light source 4 is more than 60HZ, human eye can not experience the flicker of light.
First controller 5 can receive the information that external networks equipment is sent via the first connectivity port 7, and will receive
To information handled, control light source 1 control signal that flashes and (light or extinguishes) is converted into, so as to the sudden strain of a muscle of utilization light source 1
It is bright to send information.Meanwhile the flashing state for the screen backlight light source 4 that photosensitive receiving module 2 detects can be received, by right
The processing recovering signal of flashing state, and sent by the first connectivity port 7.
Second controller 6 can receive the information that external networks equipment is sent via second connection end mouth 8, and will receive
To information handled, the control signal that screen backlight light source 4 flashes and (lights or extinguish) is converted into, so as to utilizing screen back
The flicker of radiant 4 sends information.Meanwhile the flashing state for the light source 1 that photosensitive receiving module 3 detects can be received, lead to
The processing recovering signal to flashing state is crossed, and is sent by second connection end mouth 8.
First connectivity port 7 is used for the network equipment and the first optical communication modules A for connecting outside.
Second connection end mouth 8 is used for the network equipment and the second optical communication module B for connecting outside.Wherein, outside network
Equipment is specifically as follows router, interchanger and mobile phone etc. and provides network and the equipment using network.
As one embodiment of the present utility model, the first photosensitive 2 and second photosensitive receiving module 3 of receiving module can be
The photosensors such as photo resistance, photodiode, phototriode, photodiode, light sensor, photosensitive IC, silicon photocell
Part, these devices can according to light power and whether there is be converted into corresponding to curtage value, patrolled so as to be converted into
Level is collected to be received by a controller.
As one embodiment of the present utility model, the first controller 5 and second controller 6 can be single-chip microcomputer, FPGA
Deng programming device, it can be cached and calculated with the information of receiving module, then sent by connectivity port, while also may be used
To enter row buffering and calculating from port receive information, by controlling light source scintillation to send.
As one embodiment of the present utility model, the first connectivity port 7 and second connection end mouth 8 are specifically as follows netting twine
Socket, serial ports, USB interface etc..
In the utility model, the course of work of the visible light communication device carried out by screen is as follows：First controller
Part receives the information sent by first port, and the first control signal is produced after buffer information and calibration information；Light source is according to
Line flicker is entered in the requirement of one control signal, and the control signal that will be understood that controller is a string of logic level signals, logically high electricity
Flat control light source igniting, logic low control light source extinguish；Meanwhile logic high can also control light source to extinguish, now,
Logic low controls light source igniting；Second photosensitive receiving module receives the data that light source is sent；Second controller is by the second light
The data that quick receiving module receives are cached and verified；Second port sends the information that second controller reduces to network；
Second controller receives the information that second port is sent, and the second control signal is produced after buffer information and calibration information；Screen
Back light enters line flicker according to the requirement of the second control signal, and the control signal that will be understood that controller is a string of logic levels
Signal, logic high control light source igniting, logic low control light source extinguish；Meanwhile logic high can also control
Light source extinguishes, now, logic low control light source igniting；First photosensitive receiving module receives the number that screen back light is sent
According to；The data that first photosensitive receiving module receives are cached and verified by the first controller；First port controls first
The information of device reduction is sent to network.
Fig. 2 is the specific implementation flow of the visible light communication method carried out in the utility model by screen, wherein first
Optical communication modules A and the second optical communication module B are (the coordinating Fig. 2 to illustrate) being operated that cooperate：When the first light leads to
After news modules A receives information by the first connectivity port 7, the first controller 5 is handled these information, and being converted into can be with
The control signal for sending information and going out is flashed by light source 1 and (light or extinguish), the flicker of light source 1 is controlled, when the first optical communication
After the data that light source 1 in modules A is sent are received by photosensitive receiving module 3 in the second optical communication module B, its second controller 6
Message can be handled and reduced and be sent to by second connection end mouth 8 needs the equipment of the information.When the second optical communication
After module B receives information by second connection end mouth 8, second controller 6 is handled these information, and being converted into lead to
Cross screen backlight light source 4 and flash and (light or extinguish) control signal that transmission information is gone out, the sudden strain of a muscle of control screen back light 4
It is bright, when the data that the screen backlight light source 4 in module B is sent are received by the first photosensitive receiving module 2 in the first optical communication modules A
Afterwards, message can be handled and reduced and is sent to by the first connectivity port 7 by its first controller 5 needs setting for the information
It is standby.
As shown in (a) in Fig. 2, pass through uploading step bag in the visible light communication method of screen progress in the utility model
Include：
S1：First control device receives the information sent by first port, and the is produced after buffer information and calibration information
One control signal；
S2：Light source enters line flicker according to the requirement of the first control signal, and the control signal that will be understood that controller is a string
Logic level signal, logic high control light source igniting, logic low control light source extinguish.Meanwhile logic high
Light source can be controlled to extinguish, now, logic low control light source igniting；
S3：Second photosensitive receiving module receives the data that light source is sent；
S4：The data that second photosensitive receiving module receives are cached and verified by second controller
S5：Second port sends the information that second controller reduces to network.
Download and walk in a kind of visible light communication method carried out by screen as shown in (b) in Fig. 2, in the utility model
Suddenly include：
S6：Second controller receives the information that second port is sent, and the second control is produced after buffer information and calibration information
Signal processed；
S7：Screen backlight light source enters line flicker according to the requirement of the second control signal, will be understood that the control letter of controller
Number it is a string of logic level signals, logic high control light source igniting, logic low control light source extinguishes；Meanwhile logic
High level can also control light source to extinguish, now, logic low control light source igniting；
S8：First photosensitive receiving module receives the data that screen back light is sent；
S9：The data that first photosensitive receiving module receives are cached and verified by the first controller；
S10：First port sends the information that the first controller reduces to network.
The utility model proposes a kind of visible light communication device carried out by screen；Because using mobile phone screen and
The screen backlight modulation of source of the equipment with screen such as computer screen can realize transmission information；Using control light source light and
Extinguish, data are sent by its flicker.Using light as delivering path via controller processing respectively, information can be achieved in both
Interactive communication.To realize that the visible light communication for reducing cost provides possibility.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
To limit the utility model, any modification of all made within spirit of the present utility model and principle, equivalent substitution and change
Enter, should be included within the scope of protection of the utility model.
Claims (3)
- A kind of 1. visible light communication device carried out by screen, it is characterised in that including：Light source (1), the first photosensitive reception mould Block (2), the second photosensitive receiving module (3), screen backlight light source (4), the first controller (5), second controller (6), first connect Connect port (7), second connection end mouth (8)；The input of first controller (5) is connected to the output end of the described first photosensitive receiving module (2), first control The input and output control terminal of device (5) processed connects first connectivity port (7), the output end connection of first controller (5) The light source (1)；The input of the second controller (6) is connected to the output end of the described second photosensitive receiving module (3), second control The input and output control terminal of device (6) processed connects the second connection end mouth (8), the output end connection of the second controller (6) The screen backlight light source (4).
- 2. visible light communication device as claimed in claim 1, it is characterised in that during work, the first photosensitive receiving module Sense the flicker of the screen backlight light source and be conveyed to first controller after being translated into high level or low level；Institute State output control signal after the first controller is handled the data that send of needs and control lighting and extinguishing for the light source, The second photosensitive receiving module senses the flicker of the light source, and be translated into after high level or low level be conveyed to it is described Second controller；Output control signal and the screen is controlled after the second controller is handled the data that send of needs Back light is lighted and extinguished, and data are sent by the flicker of the screen backlight light source.
- 3. visible light communication device as claimed in claim 1 or 2, it is characterised in that when the flicker of the screen backlight light source When frequency is more than 60HZ, human eye can not experience the flicker of light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721067110.5U CN207150596U (en) | 2017-08-24 | 2017-08-24 | A kind of visible light communication device carried out by screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721067110.5U CN207150596U (en) | 2017-08-24 | 2017-08-24 | A kind of visible light communication device carried out by screen |
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| Publication Number | Publication Date |
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| CN207150596U true CN207150596U (en) | 2018-03-27 |
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| CN201721067110.5U Expired - Fee Related CN207150596U (en) | 2017-08-24 | 2017-08-24 | A kind of visible light communication device carried out by screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404354A (en) * | 2017-08-24 | 2017-11-28 | 河南中云创光电科技股份有限公司 | A kind of visible light communication device and method carried out by screen |
| CN112235047A (en) * | 2020-10-14 | 2021-01-15 | 厦门大学 | Screen two-way communication system based on visible light communication |
| WO2021068795A1 (en) * | 2019-10-11 | 2021-04-15 | 京东方科技集团股份有限公司 | Image display method and device, image identification method and device, medium, apparatus, and system |
| CN114915339A (en) * | 2022-03-23 | 2022-08-16 | 厦门大学 | Visible light communication system and method through light emitting diode array |
-
2017
- 2017-08-24 CN CN201721067110.5U patent/CN207150596U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107404354A (en) * | 2017-08-24 | 2017-11-28 | 河南中云创光电科技股份有限公司 | A kind of visible light communication device and method carried out by screen |
| WO2021068795A1 (en) * | 2019-10-11 | 2021-04-15 | 京东方科技集团股份有限公司 | Image display method and device, image identification method and device, medium, apparatus, and system |
| US11889083B2 (en) | 2019-10-11 | 2024-01-30 | Boe Technology Group Co., Ltd. | Image display method and device, image recognition method and device, storage medium, electronic apparatus, and image system |
| CN112235047A (en) * | 2020-10-14 | 2021-01-15 | 厦门大学 | Screen two-way communication system based on visible light communication |
| CN114915339A (en) * | 2022-03-23 | 2022-08-16 | 厦门大学 | Visible light communication system and method through light emitting diode array |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20210824 |