CN103986517A - Method and system for transmitting information through dynamic two-dimensional image information - Google Patents
Method and system for transmitting information through dynamic two-dimensional image information Download PDFInfo
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Abstract
The invention discloses a method and system for transmitting information through dynamic two-dimensional image information. The method includes the steps that according to information carrying capacity of each frame of a set imaging array, information to be sent is converted into multi-frame two-dimensional image driving information; the imaging array is controlled to sequentially display multiple frames of two-dimensional images according to the two-dimensional image driving information; the display state of the imaging array is sampled to obtain the two-dimensional images, and the sampling speed is higher than or equal to two times of the frame conversion speed of the two-dimensional images; the two-dimensional images are demodulated, and thus the information to be sent is obtained. Through the technical scheme, the information transmission amount and the transmission speed of visible light communication are increased.
Description
Technical field
The present invention relates to visible ray communication technique field, more particularly, relate to a kind of method and system that adopt Dynamic Two-dimensional image information to carry out communication.
Background technology
Visible ray communication is a kind of in technical novel, the short distance high-speed radio mechanics of communication growing up of light-emitting diode (LED luminescent device).The general principle of visible light communication is exactly to utilize light-emitting diode than fluorescent lamp and the fast feature of incandescent lamp switch speed, high frequency flicker by LED luminescent device light source communicates, and has light to represent 1, unglazedly represents 0, send light signal at a high speed, pass through opto-electronic conversion and obtaining information.
Visible light communication is because its data are difficult for disturbed and catch, and optical communication equipment is made simple and not fragile and demagnetization, can be used for making wireless optical encryption key pair.Compared with microwave technology, visible light communication technology has quite abundant frequency spectrum resource, and this is that general microwave communication and radio communication are incomparable; Visible light communication can use any communication protocol, be applicable to any environment simultaneously; At secure context, it is than traditional magnetic material, without worrying demagnetization problem, more needn't worry that Content of Communication stolen by others; The equipment of wireless light communication is supposed flexible border, and with low cost, is applicable to large-scale universal and application.
But visible ray communication is subject to the restriction of LED luminescent device modulation bandwidth, when single led luminescent device carries out optical communication, transinformation is little, and information transfer efficiency is low.The transmission quantity and the transmission efficiency that how to improve information in optical communication process are current problem demanding prompt solutions.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of method and system that adopt Dynamic Two-dimensional image information to carry out communication, improve transinformation and the transmission efficiency of visible ray communication.
For achieving the above object, the invention provides following technical scheme:
Adopt Dynamic Two-dimensional image information to carry out a method for communication, this information transferring method comprises:
According to the relativity of information of each frame of setting imaging array, information to be sent is converted to the two dimensional image activation bit of multiframe;
Show successively multiframe two dimensional image according to imaging array described in the control of described two dimensional image activation bit;
Show state to described imaging array is sampled, and obtains described two dimensional image, and the speed of described sampling is more than or equal to two times of frame transform speed of described two dimensional image;
Described two dimensional image is carried out to demodulation process, and then obtain described information to be sent.
Preferably, in said method, described imaging array comprises the anchor point region that is arranged on three drift angles of described imaging array, is positioned at described imaging array with being provided with Timing Belt between two anchor points on one side, and described Timing Belt comprises the first show state and the second show state;
In the time controlling described imaging array demonstration multiframe two dimensional image, described anchor point show state does not change, and in two adjacent frame two dimensional images, the two dimensional image of former frame is not identical with the show state of the Timing Belt of the two dimensional image of a rear frame.
Preferably, in said method, before demodulation process, also comprise carrying out:
The described two dimensional image obtaining is carried out to geometric correction, eliminate the geometric distortion of described two dimensional image.
Preferably, in said method, describedly described two dimensional image carried out to demodulation process comprise:
Determine the effective information region of described two dimensional image according to the anchor point region of the described two dimensional image obtaining;
Remove the redundant image in described two dimensional image according to the Timing Belt show state of the described two dimensional image obtaining, the two dimensional image that sampling is obtained is corresponding one by one with the two dimensional image that imaging array shows, realizes information synchronous;
Two dimensional image after synchronous to information carries out demodulation process successively, obtains described information to be sent.
Preferably, in said method, two times of the frame transform speed that described sample rate is described two dimensional image.
Preferably, in said method, described imaging array is LED array display floater or display panels.
The present invention also provides a kind of system that adopts Dynamic Two-dimensional image information to carry out communication, and this information transmission system comprises: image generation module, image capture module and information detection module;
Described image generation module, for according to the relativity of information of each frame of setting imaging array, information to be sent being converted to the two dimensional image activation bit of multiframe, shows multiframe two dimensional image successively according to imaging array described in the control of described two dimensional image activation bit;
Described image capture module for the show state of described imaging array is sampled, obtains described two dimensional image, and the sample rate of described image capture module is more than or equal to two times of frame transform speed of described two dimensional image;
Described information detection module is used for described two dimensional image to carry out demodulation process, and then obtains described information to be sent.
Preferably, in said system, described imaging array comprises the anchor point region that is arranged on three drift angles of described imaging array, is positioned at described imaging array with being provided with Timing Belt between two anchor points on one side, and described Timing Belt comprises the first show state and the second show state;
In the time controlling described imaging array demonstration multiframe two dimensional image, described image generation module does not change for the show state of controlling described anchor point, in two adjacent frame two dimensional images, control the two dimensional image of former frame not identical with the show state of the Timing Belt of the two dimensional image of a rear frame.
Preferably, in said system, described image capture module also, for the described two dimensional image obtaining is carried out to geometric correction, is eliminated the geometric distortion of described two dimensional image.
Preferably, in said system, described information detection module comprises:
Positioning unit, described positioning unit is for determining the effective information region of described two dimensional image according to the anchor point region of the described two dimensional image obtaining;
Information synchronizing unit, described information synchronizing unit is for removing the redundant image of described two dimensional image according to the Timing Belt show state of the described two dimensional image obtaining, the two dimensional image that sampling is obtained is corresponding one by one with the two dimensional image that imaging array shows, realizes information synchronous;
Demodulation process unit, described demodulation process unit carries out demodulation process successively for the two dimensional image after synchronous to information, obtains described information to be sent.
Preferably, in said system, two times of the frame transform speed that the sample rate of described image capture module is described two dimensional image.
Preferably, in said system, described imaging array is LED array display floater or display panels.
Can find out from technique scheme, the method that employing Dynamic Two-dimensional image information provided by the present invention is carried out communication comprises: the two dimensional image activation bit that according to the relativity of information of each frame of setting imaging array, information to be sent is converted to multiframe; Show successively multiframe two dimensional image according to imaging array described in the control of described two dimensional image activation bit; Show state to described imaging array is sampled, and obtains described two dimensional image, and the speed of described sampling is more than or equal to two times of frame transform speed of described two dimensional image; Described two dimensional image is carried out to demodulation process, and then obtain described information to be sent.Visible, described information approach carries out visible ray communication by imaging array, has improved transinformation and the transmission speed of visible ray communication.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
A kind of schematic flow sheet that adopts Dynamic Two-dimensional image information to carry out the method for communication that Fig. 1 provides for the embodiment of the present invention;
The structural representation of a kind of imaging array that Fig. 2 provides for the embodiment of the present invention;
A kind of method flow schematic diagram that two dimensional image is carried out to demodulation process that Fig. 3 provides for the embodiment of the present invention;
A kind of structural representation that adopts Dynamic Two-dimensional image information to carry out the transmission system of communication that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As described in the background art, the transmission quantity and the transmission efficiency that how to improve information in optical communication process are current problem demanding prompt solutions.
Inventor studies discovery, can utilize imaging array to carry out visible ray communication, can create like this space channel of multiple parallel communications, effectively utilizes these parallel space channels to carry out transfer of data and can improve volume of transmitted data and transfer rate.
Information exchange to be sent is crossed to imaging array and carry out the dynamic two dimensional image demonstration of multiframe, obtain after described two dimensional image, and can obtain described information to be sent by demodulates information, with respect to the visible ray communication of single led luminescent device, improve transinformation and information transmission speed.
Based on above-mentioned research, the application an embodiment provide a kind of method that adopts Dynamic Two-dimensional image information to carry out communication, and with reference to figure 1, the method comprises:
Step S1: the two dimensional image activation bit that according to the relativity of information of each frame of setting imaging array, described information to be sent is converted to multiframe.
Described information to be sent can be video information, acoustic information, image information or Word message, but is not limited to above-mentioned information type.
The present embodiment carries out information transmission by the two dimensional image of imaging array, and set for the transinformation of its each two field picture of imaging array of setting, and information to be sent comprises a large amount of data messages, therefore, need just described information to be sent to be converted to the two dimensional image activation bit of multiframe according to the bearing capacity of each two field picture of described imaging array.If the data message that described information to be sent comprises is less, only need be converted into a frame two dimensional image activation bit.
Described information to be sent can be converted to two dimensional image activation bit by conversion technology of information, for driving imaging array to carry out two dimensional image demonstration.Described two dimensional image activation bit can be binary data or quaternary number certificate or hexadecimal data.Be that described two dimensional image activation bit can be 2
nsystem data, wherein, n is positive integer.
Step S2: show successively multiframe two dimensional image according to imaging array described in the control of described two dimensional image activation bit.
Under the two dimensional image activation bit of different frame, the two dimensional image that described imaging array carries out different frame shows.
Described imaging array can be LED array display floater or display panels, describes in the present embodiment as an example of LED array display floater example.
In the time that described array of display is LED array display floater, in described imaging array, comprise the LED luminescent device of multiple array arrangements, according to the voltage of LED luminescent device described in the control of described two dimensional image activation bit, and then can control the luminous intensity of described LED luminescent device, and then the image of controlling described imaging array entirety shows.
As described in two dimensional image activation bit while being binary data, can only there are bright and two show states that do not work by high level and each LED luminescent device of two kinds of voltage control of low level (no-voltage), make each LED luminescent device bright in the time of high level, in the time of low level, do not work.
When described two dimensional image activation bit is 2
nwhen system data, n>=2, only need be divided into 2 by above-mentioned high level
n-1 part, make described LED have 2 under non-zero voltage
nthe show state of-a kind of different brightness, adds that the state of not working under no-voltage can have 2
nplant show state.
The activation bit of two dimensional image described in this enforcement is quaternary number certificate, can be used for driving described LED luminescent device to there are four kinds of different show states, than binary data, reduced imaging array carry out image show time coding redundancy, improve amount of transmitted information, driven simultaneously and be relatively simply easy to realize.
If described two dimensional image activation bit is only a two field picture, only need to control the corresponding frame two dimensional image that shows of described imaging array.If described two dimensional image activation bit has multiframe two dimensional image, need to be with the frame transform speed of setting, control successively described LED and show multiframe two dimensional image.
Described imaging array comprises the anchor point region that is arranged on three drift angles of described imaging array, is positioned at described imaging array with being provided with Timing Belt between two anchor points on one side, and described Timing Belt comprises the first show state and the second show state;
In the time controlling described imaging array demonstration multiframe two dimensional image, described anchor point show state does not change, and in two adjacent frame two dimensional images, the two dimensional image of former frame is not identical with the show state of the Timing Belt of the two dimensional image of a rear frame.
With reference to figure 2, Fig. 2 is this structural representation of implementing described LED array display floater, and the LED array that described LED array display floater is 64 × 64 comprises 4096 LED light emitting device display parts.Its three drift angles are respectively arranged with the anchor point region 1 with 3 × 3 LED luminescent devices, anchor point region 2, and anchor point region 3, is positioned at.Be positioned at LED array with being provided with Timing Belt between two anchor points on one side, described Timing Belt comprises: Timing Belt 5 and Timing Belt 4.Each Timing Belt comprises 61 LED luminescent devices that are located on the same line.
Can locate the viewing area of described LED array by described anchor point region, the show state in the time carrying out image demonstration that all anchor points region is set is constant, for the anchor point region with 3 × 3 LED luminescent devices, the LED luminescent device of the show state that described anchor point is set in the middle of being, for the brightest, is positioned at eight ELD luminescent devices of centre LED luminescent device surrounding for not working.
Described Timing Belt comprises the first show state and the second show state, can determine by described Timing Belt whether two frame two dimensional images are two adjacent frame two dimensional images, in the time driving described LED array display floater to carry out the demonstration of multiframe two dimensional image, the Timing Belt show state of the two dimensional image of same frame is identical, Timing Belt show state difference in two adjacent frame two dimensional images.Described the first show state can be set for not working, described the second show state is for the brightest.
Remove three anchor point regions and two Timing Belts for 64 × 64 imaging array, 3947 LED luminescent devices can be for filling described two dimensional image activation bit in addition, and now the every two field picture of described imaging array has 3947 pixels.
It should be noted that, when adopting display panels during as described imaging array, the show state of each pixel cell that can be by controlling described display panels makes to show successively multiframe two dimensional image.
Step S3: the show state to described imaging array is sampled, obtains described two dimensional image, and the speed of described sampling is more than or equal to two times of frame transform speed of described two dimensional image.
The speed of controlling described sampling is more than or equal to the frame transform speed of described two dimensional image, to make described imaging array in the time showing multiframe two dimensional image, the two dimensional image of all demonstrations of imaging array is all gathered, and avoids omitting the show state of imaging array.Concrete, described sample rate can equal two times of frame transform speed of described two dimensional image.
Step S4: described two dimensional image is carried out to demodulation process, and then obtain described information to be sent.
Due in the time obtaining described two dimensional image, can not ensure that image collecting device and described imaging array are just to arranging, so the demonstration image of the imaging array obtaining may exist geometric distortion completely.Therefore also comprise before demodulation process carrying out: the described two dimensional image obtaining is carried out to geometric correction, eliminate the geometric distortion of described two dimensional image.Can adopt the mathematics variation of image processing field to carry out described geometric correction, as adopted HOUGH shift theory to carry out geometric correction.
With reference to figure 3, describedly described two dimensional image carried out to demodulation process comprise:
Step S41: the effective information region of determining described two dimensional image according to the anchor point region of the described two dimensional image obtaining.
In the time adopting image collecting device to obtain the demonstration image of described imaging array, imaging array surrounding environment image will certainly be collected in the lump, the two-dimensional image information gathering exists environmental information to disturb.Therefore, now first need to determine according to described anchor point region the territory, effective display area of each frame two dimensional image.
Step S42: remove the redundant image in described two dimensional image according to the Timing Belt show state of the described two dimensional image obtaining, the two dimensional image that sampling is obtained is corresponding one by one with the two dimensional image that described imaging array shows, realizes information synchronous.
Because the speed of described sampling is greater than the frame transform speed of described two dimensional image, can cause so the same frame two dimensional image of imaging array repeatedly collected, therefore, now can remove according to the show state of described Timing Belt the two dimensional image that is repeated collection, make the X-Y scheme image of collection corresponding one by one with the multiframe two dimensional image that imaging array shows, realize information synchronous.If it is identical to gather the Timing Belt show state of adjacent two dimensional image, can be judged to be the two dimensional image of repeated acquisition, only adopt a wherein two field picture.
Step S43: the two dimensional image after synchronous to information carries out demodulation process successively, obtains described information to be sent.
Two dimensional image after information is synchronous is corresponding one by one with the multiframe two dimensional image that imaging array shows, now carries out demodulates information processing and can obtain described information to be sent.
Known by foregoing description, the Dynamic Two-dimensional image that information transferring method is undertaken by imaging array described in the present embodiment carries out transfer of data, has improved transinformation and transmission speed.
Based on above-described embodiment, another embodiment of the application also provides a kind of system that adopts Dynamic Two-dimensional image information to carry out communication, and with reference to figure 3, this system comprises: image generation module 6, image capture module 7 and information detection module 8.
Described image generation module 6, for according to the relativity of information of each frame of setting imaging array, described information to be sent being converted to the two dimensional image activation bit of multiframe, shows multiframe two dimensional image successively according to imaging array described in the control of described two dimensional image activation bit.
Described image capture module 7 is sampled for the show state to described imaging array, obtains described two dimensional image, and the sample rate of described image capture module is more than or equal to two times of frame transform speed of described two dimensional image.Preferably, the sample rate of described image capture module equals two times of frame transform speed of described two dimensional image.
Described information detection module 8 is for described two dimensional image is carried out to demodulation process, and then obtains described information to be sent.
As described in embodiment as above-mentioned, described imaging array comprises the anchor point region that is arranged on three drift angles of described imaging array, be positioned at described imaging array with being provided with Timing Belt between two anchor points on one side, described Timing Belt comprises the first show state and the second show state.
In the time controlling described imaging array demonstration multiframe two dimensional image, described image generation module 6 does not change for the show state of controlling described anchor point, in two adjacent frame two dimensional images, control the two dimensional image of former frame not identical with the show state of the Timing Belt of the two dimensional image of a rear frame.
Described image capture module 7 also, for the described two dimensional image obtaining is carried out to geometric correction, is eliminated the geometric distortion of described two dimensional image.Described image capture module comprises the device such as mobile phone, panel computer, video camera with image collecting function, and adopts corresponding image processing system to carry out geometric correction to the two dimensional image gathering.
Described information detection module 8 comprises: positioning unit, and described positioning unit is for determining the effective information region of described two dimensional image according to the anchor point region of the described two dimensional image obtaining; Information synchronizing unit, described information synchronizing unit is for removing the redundant image of described two dimensional image according to the Timing Belt show state of the described two dimensional image obtaining, the two dimensional image that sampling is obtained is corresponding one by one with the two dimensional image that imaging array shows, realizes information synchronous; Demodulation process unit, described demodulation process unit carries out demodulation process successively for the two dimensional image after synchronous to information, obtains described information to be sent.
Described image capture module 7 and described information detection module 8 can be integrated in the electronic equipments such as mobile phone, panel computer or intelligent glasses, by the data message that described electronic equipment can directly read and the Dynamic Two-dimensional image of decoding imaging array corresponding and showing transmits, there is larger amount of information with respect to static Quick Response Code, for user provides more experience.
In described system, described imaging array can be that LED array display floater can be also display panels, and its embodiment can, referring to above-described embodiment, repeat no more in the present embodiment.
Known by foregoing description, the information transmission system shows by the dynamic image of imaging array described in the present embodiment, adopts dynamic two dimensional image to carry out communication, has improved transinformation and the transmission speed of visible ray communication.
It should be noted that, embodiment of the method and system embodiment are described and are emphasized particularly on different fields described in the present embodiment, and identical similarity can remark additionally mutually.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (12)
1. adopt Dynamic Two-dimensional image information to carry out a method for communication, it is characterized in that, comprising:
According to the relativity of information of each frame of setting imaging array, information to be sent is converted to the two dimensional image activation bit of multiframe;
Show successively multiframe two dimensional image according to imaging array described in the control of described two dimensional image activation bit;
Show state to described imaging array is sampled, and obtains described two dimensional image, and the speed of described sampling is more than or equal to two times of frame transform speed of described two dimensional image;
Described two dimensional image is carried out to demodulation process, and then obtain described information to be sent.
2. method according to claim 1, it is characterized in that, described imaging array comprises the anchor point region that is arranged on three drift angles of described imaging array, be positioned at described imaging array with being provided with Timing Belt between two anchor points on one side, described Timing Belt comprises the first show state and the second show state;
In the time controlling described imaging array demonstration multiframe two dimensional image, described anchor point show state does not change, and in two adjacent frame two dimensional images, the two dimensional image of former frame is not identical with the show state of the Timing Belt of the two dimensional image of a rear frame.
3. method according to claim 2, is characterized in that, also comprises carrying out before demodulation process:
The described two dimensional image obtaining is carried out to geometric correction, eliminate the geometric distortion of described two dimensional image.
4. method according to claim 3, is characterized in that, describedly described two dimensional image is carried out to demodulation process comprises:
Determine the effective information region of described two dimensional image according to the anchor point region of the described two dimensional image obtaining;
Remove the redundant image in described two dimensional image according to the Timing Belt show state of the described two dimensional image obtaining, the two dimensional image that sampling is obtained is corresponding one by one with the two dimensional image that imaging array shows, realizes information synchronous;
Two dimensional image after synchronous to information carries out demodulation process successively, obtains described information to be sent.
5. method according to claim 1, is characterized in that, two times of the frame transform speed that described sample rate is described two dimensional image.
6. method for sending information according to claim 1, is characterized in that, described imaging array is LED array display floater or display panels.
7. adopt Dynamic Two-dimensional image information to carry out a system for communication, it is characterized in that, comprising: image generation module, image capture module and information detection module;
Described image generation module, for according to the relativity of information of each frame of setting imaging array, information to be sent being converted to the two dimensional image activation bit of multiframe, shows multiframe two dimensional image successively according to imaging array described in the control of described two dimensional image activation bit;
Described image capture module for the show state of described imaging array is sampled, obtains described two dimensional image, and the sample rate of described image capture module is more than or equal to two times of frame transform speed of described two dimensional image;
Described information detection module is used for described two dimensional image to carry out demodulation process, and then obtains described information to be sent.
8. system according to claim 7, it is characterized in that, described imaging array comprises the anchor point region that is arranged on three drift angles of described imaging array, be positioned at described imaging array with being provided with Timing Belt between two anchor points on one side, described Timing Belt comprises the first show state and the second show state;
In the time controlling described imaging array demonstration multiframe two dimensional image, described image generation module does not change for the show state of controlling described anchor point, in two adjacent frame two dimensional images, control the two dimensional image of former frame not identical with the show state of the Timing Belt of the two dimensional image of a rear frame.
9. system according to claim 8, is characterized in that, described image capture module also, for the described two dimensional image obtaining is carried out to geometric correction, is eliminated the geometric distortion of described two dimensional image.
10. system according to claim 9, is characterized in that, described information detection module comprises:
Positioning unit, described positioning unit is for determining the effective information region of described two dimensional image according to the anchor point region of the described two dimensional image obtaining;
Information synchronizing unit, described information synchronizing unit is for removing the redundant image of described two dimensional image according to the Timing Belt show state of the described two dimensional image obtaining, the two dimensional image that sampling is obtained is corresponding one by one with the two dimensional image that imaging array shows, realizes information synchronous;
Demodulation process unit, described demodulation process unit carries out demodulation process successively for the two dimensional image after synchronous to information, obtains described information to be sent.
11. systems according to claim 7, is characterized in that, two times of the frame transform speed that the sample rate of described image capture module is described two dimensional image.
12. systems according to claim 7, is characterized in that, described imaging array is LED array display floater or display panels.
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