CN105323004A - Method, device and system for realizing information transmission based on visible light - Google Patents
Method, device and system for realizing information transmission based on visible light Download PDFInfo
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- CN105323004A CN105323004A CN201410238275.9A CN201410238275A CN105323004A CN 105323004 A CN105323004 A CN 105323004A CN 201410238275 A CN201410238275 A CN 201410238275A CN 105323004 A CN105323004 A CN 105323004A
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Abstract
The invention discloses a method, a device and a system for realizing information transmission based on visible light. The method for realizing information transmission based on visible light comprise the following steps: encoding a file to generate bit information when sending file information; grouping the bit information to get bit groups, wherein only the bit information in the same bit group is displayed on a screen at the same time; displaying the bit information in the bit groups screen by screen, wherein the bit information is modulated into pixels of corresponding colors for display, so that a receiving device can acquire images displayed on the screen, and the file is sent to the receiving device. By transmitting data in real time using a screen or an image acquisition unit such as a camera, the transmission process is simplified, the speed and reliability of directional data transmission are improved, and the problem that the existing system is susceptible to interference and is low in transmission rate is solved. A new technological path is provided for visible light communication.
Description
Technical field
The present invention relates to the communications field, particularly a kind of methods, devices and systems realizing information transmission based on visible ray.
Background technology
Traditional terminal-to-terminal service file mainly contains the modes such as bluetooth, data wire, infrared ray, WiFi, these modes are solving user file transmission problem, while improve transmission speed, but also there is the problem that mode of operation is more complicated, confidentiality is poor, transmission speed exists bottleneck, speed room for promotion is less simultaneously.
(VisibleLightCommunication is called for short: be VLC) a kind of novel wireless communication technology based on visible ray, visible light communication can provide short distance, safety, glitch-free wireless link visible light communication technology.Compared with traditional radio communication, there is obvious advantage.But current visible light communication technology is easily subject to environmental interference and transmission rate is low, the transfer of data between terminal therefore cannot be applied to.
Summary of the invention
The embodiment of the present invention provides a kind of methods, devices and systems realizing information transmission based on visible ray.By utilizing the image acquisition units of screen and such as camera to real-time data transmission, simplifying transfer process, improve speed and the reliability of data-directed transmission, solving existing system and be easily disturbed the problem low with transmission rate.And for utilizing visible light communication to provide new Technology Ways.
According to an aspect of the present invention, a kind of method realizing information transmission based on visible ray is provided, comprises:
When sending fileinfo, described file is encoded, to generate bit information;
Divided into groups by bit information, to obtain bit group, wherein synchronization only shows the bit information in same bit group on screen;
Show the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show so that receiving system is captured in the image that screen shows, thus realize described file is sent to described receiving system.
In one embodiment, the step of the above-mentioned bit information shown in each bit group by screen display comprises:
In the bit group of display in current needs, bit value " 0 " is converted to white pixel, bit value " 1 " is converted to black picture element;
The white pixel obtained and black picture element are presented on screen successively.
According to a further aspect in the invention, provide a kind of method realizing information transmission based on visible ray, comprising:
Be captured on dispensing device screen by the image information that screen display is shown; Wherein dispensing device is when sending fileinfo, encode to generate bit information to described file, bit information is carried out divide into groups to obtain bit group, and shows the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show;
Carry out demodulation to the pixel color in the image information gathered, to obtain the bit information in each bit group, the image information wherein shown on the screen at the same belongs to same bit group;
Bit information in each bit group is decoded, to obtain the fileinfo that described dispensing device sends.
In one embodiment, the step that the pixel color in the image information gathered carries out demodulation is comprised:
In the image gathered, white pixel is converted to bit value " 0 ", black picture element is converted to bit value " 1 ".
In one embodiment, before the step being captured in the image information that dispensing device screen shows by screen display, also comprise:
Focusing process is carried out for dispensing device screen.
According to a further aspect in the invention, a kind of dispensing device realizing information transmission based on visible ray is provided, comprises coding unit, grouped element and indicative control unit, wherein:
Coding unit, for when sending fileinfo, encodes to described file, to generate bit information;
Grouped element, for being divided into groups by bit information, to obtain bit group, wherein synchronization only shows the bit information in same bit group on screen;
Indicative control unit, for showing the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show so that receiving system is captured in the image that screen shows, thus realize described file is sent to described receiving system.
In one embodiment, bit value " 0 " specifically in the bit group of display in current needs, is converted to white pixel, bit value " 1 " is converted to black picture element, and the white pixel obtained and black picture element are presented at successively on screen by indicative control unit.
According to a further aspect in the invention, a kind of receiving system realizing information transmission based on visible ray is provided, comprises collecting unit, demodulating unit and decoding unit, wherein:
Collecting unit, for being captured on dispensing device screen by the image information that screen display is shown; Wherein dispensing device is when sending fileinfo, encode to generate bit information to described file, bit information is carried out divide into groups to obtain bit group, and shows the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show;
Demodulating unit, for carrying out demodulation to the pixel color in the image information gathered, to obtain the bit information in each bit group, the image information wherein shown on the screen at the same belongs to same bit group;
Decoding unit, for decoding to the bit information in each bit group, to obtain the fileinfo that described dispensing device sends.
In one embodiment, white pixel specifically, in the image gathered, is converted to bit value " 0 ", black picture element is converted to bit value " 1 " by demodulating unit.
In one embodiment, above-mentioned receiving system also comprises focusing unit, wherein:
Focusing unit, before be captured in the image information that dispensing device screen shows by screen display at collecting unit, carries out focusing process for dispensing device screen.
According to a further aspect in the invention, a kind of system realizing information transmission based on visible ray is provided, comprises dispensing device and receiving system, wherein:
Dispensing device is the dispensing device that above-mentioned any embodiment relates to;
Receiving system is the receiving system that above-mentioned any embodiment relates to.
In one embodiment, dispensing device and receiving system are mobile terminal.
The present invention, by when sending fileinfo, encodes to described file, to generate bit information; Divided into groups by bit information, to obtain bit group, wherein synchronization only shows the bit information in same bit group on screen; Show the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show, thus so that receiving system is captured in the image that screen shows, to realize described file to send to described receiving system.By utilizing screen and camera to real-time data transmission, simplifying transfer process, improve speed and the reliability of data-directed transmission, solving existing system and be easily disturbed the problem low with transmission rate.And for utilizing visible light communication to provide new Technology Ways.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 the present invention is based on the schematic diagram that visible ray realizes a method embodiment of information transmission.
Fig. 2 is the schematic diagram of the bit information embodiment that the present invention shows on screen.
Fig. 3 the present invention is based on the schematic diagram that visible ray realizes another embodiment of method of information transmission.
Fig. 4 the present invention is based on the schematic diagram that visible ray realizes a dispensing device embodiment of information transmission.
Fig. 5 the present invention is based on the schematic diagram that visible ray realizes a receiving system embodiment of information transmission.
Fig. 6 the present invention is based on the schematic diagram that visible ray realizes another embodiment of receiving system of information transmission.
Fig. 7 the present invention is based on the schematic diagram that visible ray realizes a system embodiment of information transmission.
Fig. 8 the present invention is based on the schematic diagram that visible ray realizes an information transmission embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Illustrative to the description only actually of at least one exemplary embodiment below, never as any restriction to the present invention and application or use.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Unless specifically stated otherwise, otherwise positioned opposite, the numerical expression of the parts of setting forth in these embodiments and step and numerical value do not limit the scope of the invention.
Meanwhile, it should be understood that for convenience of description, the size of the various piece shown in accompanying drawing is not draw according to the proportionate relationship of reality.
May not discuss in detail for the known technology of person of ordinary skill in the relevant, method and apparatus, but in the appropriate case, described technology, method and apparatus should be regarded as a part of authorizing specification.
In all examples with discussing shown here, any occurrence should be construed as merely exemplary, instead of as restriction.Therefore, other example of exemplary embodiment can have different values.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to be further discussed it in accompanying drawing subsequently.
Fig. 1 the present invention is based on the schematic diagram that visible ray realizes a method embodiment of information transmission.Preferably, the method step of the present embodiment can be performed by dispensing device.
Step 101, when sending fileinfo, encodes to described file, to generate bit information.
Step 102, divides into groups bit information, and to obtain bit group, wherein synchronization only shows the bit information in same bit group on screen.
Step 103, shows the bit information in each bit group by screen display.
Wherein bit information is modulated to there is respective color pixel to show so that receiving system is captured in the image that screen shows, thus realize described file is sent to described receiving system.
With existing Quick Response Code unlike, Quick Response Code belongs to still image, and user to take Quick Response Code by the user terminal of such as mobile phone and decodes, thus can obtain the information included by Quick Response Code.And in the present embodiment, dispensing device shows the information that will transmit continuously by screen.That is, in this process, information screen shown is time dependent.While raising information carrying capacity, also improve the fail safe of information.
Based on the method realizing information transmission based on visible ray that the above embodiment of the present invention provides, by utilizing screen and camera to real-time data transmission, simplify transfer process, improve speed and the reliability of data-directed transmission, solve existing system and be easily disturbed the problem low with transmission rate.And for utilizing visible light communication to provide new Technology Ways.
In one embodiment, the step of the above-mentioned bit information shown in each bit group by screen display can comprise:
In the bit group of display in current needs, bit value " 0 " is converted to white pixel, bit value " 1 " is converted to black picture element; Then the white pixel obtained and black picture element are presented on screen successively.
Sometime, the image that screen shows as shown in Figure 2.Certainly, those skilled in the art are scrutable, and along with the change of bit stream, the image that screen shows also can change thereupon.The information obtained in multiple image, by gathering this image, by carrying out demodulation, decoding to this image, and is integrated by receiving system, thus can obtain the file of transmission.
Preferably, after pixel value bit value being converted to respective color, also can carry out intensification modulation and/or pulse position modulation to pixel value further, thus the brightness of image can be regulated as required, and show on certain time slot in the cycle of transmission.Because above-mentioned modulation is that those skilled in the art understood, therefore do not launch here to describe.
Fig. 3 the present invention is based on the schematic diagram that visible ray realizes another embodiment of method of information transmission.Preferably, the method step of the present embodiment can be performed by receiving system.
Step 301, is captured on dispensing device screen by the image information that screen display is shown.
Wherein dispensing device is when sending fileinfo, encode to generate bit information to described file, bit information is carried out divide into groups to obtain bit group, and shows the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show.
Step 302, carry out demodulation to the pixel color in the image information gathered, to obtain the bit information in each bit group, the image information wherein shown on the screen at the same belongs to same bit group.
In one embodiment, the step that the pixel color in the above-mentioned image information to gathering carries out demodulation comprises:
In the image gathered, white pixel is converted to bit value " 0 ", black picture element is converted to bit value " 1 ".
Those skilled in the art are scrutable, and demodulation is corresponding with modulation, and recipient can carry out corresponding demodulation according to modulation system, and therefore demodulation can adjust accordingly according to the change of modulation system.
Step 303, decodes to the bit information in each bit group, to obtain the fileinfo that described dispensing device sends.
Based on the method realizing information transmission based on visible ray that the above embodiment of the present invention provides, by utilizing screen and camera to real-time data transmission, simplify transfer process, improve speed and the reliability of data-directed transmission, solve existing system and be easily disturbed the problem low with transmission rate.And for utilizing visible light communication to provide new Technology Ways.
In one embodiment, above-mentioned be captured in the step of the image information that dispensing device screen shows by screen display before, also comprise:
Focusing process is carried out for dispensing device screen.
Because the transmission that the present invention relates to is a continuous process, namely on the screen of dispensing device, show corresponding information continuously, therefore only need before transmission starts, receiving system is focused for the screen of dispensing device, after transmission starts, then without the need to re-starting focusing.
Fig. 4 the present invention is based on the schematic diagram that visible ray realizes a dispensing device embodiment of information transmission.As shown in Figure 4, dispensing device can comprise coding unit 401, grouped element 402 and indicative control unit 403.Wherein:
Coding unit 401, for when sending fileinfo, encodes to described file, to generate bit information.
Grouped element 402, for being divided into groups by bit information, to obtain bit group, wherein synchronization only shows the bit information in same bit group on screen.
Indicative control unit 403, for showing the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show.
So that receiving system is captured in the image that screen shows, thus realize described file to send to described receiving system.
Based on the dispensing device realizing information transmission based on visible ray that the above embodiment of the present invention provides, by utilizing screen and camera to real-time data transmission, simplify transfer process, improve speed and the reliability of data-directed transmission, solve existing system and be easily disturbed the problem low with transmission rate.And for utilizing visible light communication to provide new Technology Ways.
In one embodiment, indicative control unit 403 specifically needs in the bit group of display current, bit value " 0 " is converted to white pixel, bit value " 1 " is converted to black picture element, and the white pixel obtained and black picture element are presented on screen successively.
Those skilled in the art are scrutable, can adopt other relevant modulation system as required.
Fig. 5 the present invention is based on the schematic diagram that visible ray realizes a receiving system embodiment of information transmission.As shown in Figure 5, receiving system can comprise collecting unit 501, demodulating unit 502 and decoding unit 503.Wherein:
Collecting unit 501, for being captured on dispensing device screen by the image information that screen display is shown.
Wherein dispensing device is when sending fileinfo, encode to generate bit information to described file, bit information is carried out divide into groups to obtain bit group, and shows the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show.
Preferably, collecting unit can be the image collecting device of such as camera.
Demodulating unit 502, for carrying out demodulation to the pixel color in the image information gathered, to obtain the bit information in each bit group, the image information wherein shown on the screen at the same belongs to same bit group.
Decoding unit 503, for decoding to the bit information in each bit group, to obtain the fileinfo that described dispensing device sends.
Based on the receiving system realizing information transmission based on visible ray that the above embodiment of the present invention provides, by utilizing screen and camera to real-time data transmission, simplify transfer process, improve speed and the reliability of data-directed transmission, solve existing system and be easily disturbed the problem low with transmission rate.And for utilizing visible light communication to provide new Technology Ways.
In one embodiment, white pixel specifically, in the image gathered, is converted to bit value " 0 ", black picture element is converted to bit value " 1 " by demodulating unit 502.
Those skilled in the art can also be appreciated that, the modulation system that demodulating unit 502 also can be taked according to dispensing device, adopt corresponding demodulation means.
Fig. 6 the present invention is based on the schematic diagram that visible ray realizes another embodiment of receiving system of information transmission.Compared with embodiment illustrated in fig. 5, in the embodiment shown in fig. 6, focusing unit 601 is also comprised.Wherein:
Focusing unit 601, before be captured in the image information that dispensing device screen shows by screen display at collecting unit 501, carries out focusing process for dispensing device screen.
Fig. 7 the present invention is based on the schematic diagram that visible ray realizes a system embodiment of information transmission.As shown in Figure 7, this system comprises dispensing device 701 and receiving system 702.Wherein, dispensing device 701 is the dispensing device that in Fig. 4, any embodiment relates to, and receiving system 702 is the receiving system that in Fig. 5-Fig. 6, any embodiment relates to.
Based on the system realizing information transmission based on visible ray that the above embodiment of the present invention provides, by utilizing screen and camera to real-time data transmission, simplify transfer process, improve speed and the reliability of data-directed transmission, solve existing system and be easily disturbed the problem low with transmission rate.And for utilizing visible light communication to provide new Technology Ways.
Preferably, dispensing device and receiving system can be mobile terminal.
Fig. 8 the present invention is based on the schematic diagram that visible ray realizes an information transmission embodiment.Current mobile terminal all has display screen and camera.Wherein:
File is encoded by dispensing device, to generate bit sequence, is shown on screen after being modulated by bit sequence subsequently by screen display.Receiving system is focused before reception information, is then captured in the image that dispensing device screen shows, after decoding and demodulation accordingly, generate corresponding file.Thus the information transmission completed based on visible ray.
By implementing the present invention, following beneficial effect can be obtained:
1. utilize the existing screen of the user terminal of such as mobile terminal and camera as launch and accept unit, simplify transmitting and receiving module, by realizing transfer of data to the dynamic realtime coding of screen display content.
2. pass through a large amount of independent image vegetarian refreshments of user terminal screen as light source, transmission data, system configuration is relatively simple.Support that there is universality without the need to Special Equipment module.
3. can realize optical data transmission by user's screen coding, avoid the signal disturbing that in general purpose I SM (Industrial, Scientific, Medical, industry, science and medical science) frequency range, other wireless devices produce.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (12)
1. realize a method for information transmission based on visible ray, it is characterized in that, comprising:
When sending fileinfo, described file is encoded, to generate bit information;
Divided into groups by bit information, to obtain bit group, wherein synchronization only shows the bit information in same bit group on screen;
Show the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show so that receiving system is captured in the image that screen shows, thus realize described file is sent to described receiving system.
2. method according to claim 1, is characterized in that,
The step of the bit information shown in each bit group by screen display comprises:
In the bit group of display in current needs, bit value " 0 " is converted to white pixel, bit value " 1 " is converted to black picture element;
The white pixel obtained and black picture element are presented on screen successively.
3. realize a method for information transmission based on visible ray, it is characterized in that, comprising:
Be captured on dispensing device screen by the image information that screen display is shown; Wherein dispensing device is when sending fileinfo, encode to generate bit information to described file, bit information is carried out divide into groups to obtain bit group, and shows the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show;
Carry out demodulation to the pixel color in the image information gathered, to obtain the bit information in each bit group, the image information wherein shown on the screen at the same belongs to same bit group;
Bit information in each bit group is decoded, to obtain the fileinfo that described dispensing device sends.
4. method according to claim 3, is characterized in that,
The step of the pixel color in the image information gathered being carried out to demodulation comprises:
In the image gathered, white pixel is converted to bit value " 0 ", black picture element is converted to bit value " 1 ".
5. method according to claim 4, is characterized in that,
Before the step being captured in the image information that dispensing device screen shows by screen display, also comprise:
Focusing process is carried out for dispensing device screen.
6. realize a dispensing device for information transmission based on visible ray, it is characterized in that, comprise coding unit, grouped element and indicative control unit, wherein:
Coding unit, for when sending fileinfo, encodes to described file, to generate bit information;
Grouped element, for being divided into groups by bit information, to obtain bit group, wherein synchronization only shows the bit information in same bit group on screen;
Indicative control unit, for showing the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show so that receiving system is captured in the image that screen shows, thus realize described file is sent to described receiving system.
7. dispensing device according to claim 6, is characterized in that,
Bit value " 0 " specifically in the bit group of display in current needs, is converted to white pixel, bit value " 1 " is converted to black picture element, and the white pixel obtained and black picture element are presented at successively on screen by indicative control unit.
8. realize a receiving system for information transmission based on visible ray, it is characterized in that, comprise collecting unit, demodulating unit and decoding unit, wherein:
Collecting unit, for being captured on dispensing device screen by the image information that screen display is shown; Wherein dispensing device is when sending fileinfo, encode to generate bit information to described file, bit information is carried out divide into groups to obtain bit group, and shows the bit information in each bit group by screen display, wherein bit information is modulated to there is respective color pixel to show;
Demodulating unit, for carrying out demodulation to the pixel color in the image information gathered, to obtain the bit information in each bit group, the image information wherein shown on the screen at the same belongs to same bit group;
Decoding unit, for decoding to the bit information in each bit group, to obtain the fileinfo that described dispensing device sends.
9. receiving system according to claim 8, is characterized in that,
White pixel specifically, in the image gathered, is converted to bit value " 0 ", black picture element is converted to bit value " 1 " by demodulating unit.
10. receiving system according to claim 8, is characterized in that, also comprises focusing unit, wherein:
Focusing unit, before be captured in the image information that dispensing device screen shows by screen display at collecting unit, carries out focusing process for dispensing device screen.
11. 1 kinds realize the system of information transmission based on visible ray, it is characterized in that, comprise dispensing device and receiving system, wherein:
The dispensing device that dispensing device relates to any one of claim 6-7;
The receiving system that receiving system relates to any one of claim 8-10.
12. systems according to claim 11, is characterized in that,
Dispensing device and receiving system are mobile terminal.
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| CN201410238275.9A CN105323004A (en) | 2014-05-30 | 2014-05-30 | Method, device and system for realizing information transmission based on visible light |
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| CN108270484A (en) * | 2016-12-30 | 2018-07-10 | 深圳天珑无线科技有限公司 | Through the method and system of wireless optical communications transmission |
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Application publication date: 20160210 |