CN207075008U - A kind of data sending device and visible light communication system - Google Patents
A kind of data sending device and visible light communication system Download PDFInfo
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- CN207075008U CN207075008U CN201721051889.1U CN201721051889U CN207075008U CN 207075008 U CN207075008 U CN 207075008U CN 201721051889 U CN201721051889 U CN 201721051889U CN 207075008 U CN207075008 U CN 207075008U
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Abstract
The utility model discloses a kind of data sending device and visible light communication system.Wherein, the data sending device includes：First processing units and multi-color LED element, the first processing units are connected with the multi-color LED element, wherein：The first processing units are used to information to be sent is converted into illuminated message according to the information transmission table of comparisons to prestore, and drive the multi-color LED element to send multicolor visible light signal according to the illuminated message.Data sending device and visible light communication system provided by the utility model, information to be sent is converted into illuminated message because first processing units can send the table of comparisons according to the information to prestore, and drive multi-color LED element to send multicolor visible light signal according to illuminated message, improve the information transfer efficiency of visible light communication.
Description
Technical field
It the utility model is related to communication technical field, and in particular to a kind of data sending device and visible light communication system.
Background technology
Enter the technology that row information is wirelessly transferred using the light of visible-range, such as light caused by Light-Emitting Diode (LED)
It is one of the study hotspot in Current wireless communication field, is a promising emerging technology.
At present, it is seen that optic communication is that the imperceptible high speed light and shade of the naked eyes sent using visible rays such as Light-Emitting Diodes is dodged
Bright signal transmits information.Mostly in general visible light signal transmission is sent through monochromatic LED, and is intercepted with photodiode
The visible light signal sent by monochromatic LED.Because monochromatic LED by high speed light and shade flash signal sends signal, it is seen that optical signal
Receiving device must be capable of identify out high speed light and shade flash signal, have higher requirement to the receiving device of visible light signal.
In addition, monochromatic LED can only send a kind of color, the Limited information that can be transmitted.
Therefore, a kind of data sending device how is proposed, the requirement to receiving device can be reduced, while improve visible ray
The efficiency of transmission of information, turn into industry important topic urgently to be resolved hurrily.
Utility model content
For in the prior art the defects of, the utility model provides a kind of data sending device and visible light communication system.
On the one hand, the utility model proposes a kind of data sending device, including first processing units and multicolor luminous two pole
Tube elements, the first processing units are connected with the multi-color LED element, wherein：
The first processing units are used to information to be sent is converted into luminous letter according to the information transmission table of comparisons to prestore
Breath, and drive the multi-color LED element to send multicolor visible light signal according to the illuminated message.
Wherein, the multi-color LED element includes red light emitting diodes, the green being integrated in a lamp bead
Light emitting diode and blue LED.
On the other hand, the utility model proposes a kind of visible light communication system, including the number described in any of the above-described embodiment
According to dispensing device and data sink, wherein：
The data sink includes video camera and graphics processing unit, the video camera and described image processing unit
It is connected, the data sink receives the multicolor visible light signal by the video camera, and is handled by described image
The multicolor visible light signal is converted into image information by unit, and the data sink is believed according to the multicolor visible light to prestore
Number resolution table parsing described image information.
Wherein, the data sink includes second processing unit, and the second processing unit is handled with described image
Unit is connected, for parsing described image information according to the multicolor visible light signal resolution table.
Wherein, the data sending device is multiple.
Wherein, the video camera uses cmos camera.
Wherein, the data sink uses smart mobile phone.
Data sending device and visible light communication system provided by the utility model, because first processing units being capable of basis
The information to prestore sends the table of comparisons and information to be sent is converted into illuminated message, and drives multicolor luminous two pole according to illuminated message
Tube elements send multicolor visible light signal, improve the information transfer efficiency of visible light communication.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are
Some embodiments of the utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment data sending device of the utility model one；
Fig. 2 is the structural representation of the embodiment visible light communication system of the utility model one；
Fig. 3 is the schematic flow sheet of the embodiment visible light communication method of the utility model one；
Description of reference numerals：
1- data sending devices；2- data sinks；
11- multi-color LED elements；12- first processing units；
21- video cameras；22- graphics processing units；
23- second processing units.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, implement below in conjunction with the utility model
Accompanying drawing in example, the technical scheme in the embodiment of the utility model is explicitly described, it is clear that described embodiment is
The utility model part of the embodiment, rather than whole embodiments.It is common based on the embodiment in the utility model, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the utility model protection
Scope.
Common visible light communication at present, is all use monochromatic LED, by the high speed light and shade flicker of the monochromatic LED come
Transmit information, such as the bright expression 1 of the monochromatic LED, expression 0 of going out, so as to realize the transmission of binary data.And the utility model
Embodiment due to using multi-colored led unit, the light of the multiple color sent using multi-colored led unit come transfer data information, because
This, multicolor visible light signal is referred to by color the information that represents in the utility model embodiment.
Fig. 1 is the structural representation of the embodiment data sending device of the utility model one, as shown in figure 1, the utility model
The data sending device of offer includes first processing units 12 and multi-color LED element 11, first processing units 12 with it is more
Color light-emitting diode 11 is connected, wherein：
First processing units 12 are used to information to be sent is converted into illuminated message according to the information transmission table of comparisons to prestore,
And multi-color LED element 11 is driven to send multicolor visible light signal according to the illuminated message.Wherein, described information is sent out
The table of comparisons is sent to store the glow color of multi-color LED element 11, and it is basic correspondingly with the glow color
Data, for example, the basic data be 00,01,10 and 11, multi-color LED element 11 include can send red LED and
Blue led, can set 00 corresponding with black, i.e., when described red LED and the not luminous blue led, the polychrome can
It is black to see optical signal, represents 00；01 is corresponding with red, i.e., only the red LED when, the multicolor visible light signal
For red, 01 is represented；10 is corresponding with blueness, i.e., only the BLUE LED emissions when, the multicolor visible light signal for blueness,
Represent 10；11 is corresponding with blend color-pink colour of blue light and red light, i.e., described red LED and the blue led are sent out simultaneously
Light time, the multicolor visible light signal are pink colour, represent 11.The table of comparisons is sent according to above- mentioned information, single 12 yuan of the first processing can
So that the information to be sent to be converted into the glow color sequence of multi-color LED element 11 according to the basic data, so
It is afterwards that the glow color is Sequence Transformed for the 11 luminous illuminated message of driving multi-color LED element.Wherein,
One processing unit 12 can use chip microcontroller.
Wherein, LED has the advantages that long service life, low power supply power consumption, high directivity, and existing production technology has been realized
The LED of multiple color is integrated in a lamp bead, forms multi-color LED element 11.Wherein, multi-color LED
The color for the light that element 11 can be sent, is selected according to actual conditions, and the utility model embodiment does not limit.
Sent for example, entering row information using data sending device provided by the utility model, multi-color LED element
11 can send red and blue two color light, and described information sends the table of comparisons and stores the basic data and multicolor luminous two pole
Tube elements 11 can send the corresponding relation of color：00 is corresponding with black, and 01 is corresponding with red, and 10 is corresponding with blueness, and 11 and pink colour
It is corresponding.When needing to send information " 1100 ", first processing units 12 send the table of comparisons according to described information and convert " 1100 "
The illuminated message of " pink colour, black " is sent successively for driving multi-color LED element 11, then according to above-mentioned luminous signal
The red LED and blue led for first driving multi-color LED element 11 light simultaneously, produce pink colour visible light signal, then drive
Dynamic red LED and blue led extinguish simultaneously, represent black visible light signal.
Data sending device provided by the utility model, because first processing units can be according to the information transmission pair to prestore
Information to be sent is converted into illuminated message according to table, and drive multi-color LED element to send polychrome according to illuminated message can
See optical signal, improve the information transfer efficiency of visible light communication.
On the basis of the various embodiments described above, further, multi-color LED element 11 includes being integrated in a lamp
Red light emitting diodes, green LED and blue LED in pearl.Red, green and blueness are three primary colors,
By setting the luminous order of red light emitting diodes, green LED and blue LED, can send a variety of
The light of color.Correspondingly, described information sends the table of comparisons and is stored with the basic data corresponding with the light of the multiple color.
For example, when multi-color LED element 11 includes red light emitting diodes, green LED and blueness hair
During optical diode, when an above-mentioned Light-Emitting Diode is luminous, feux rouges, green glow or blue light can be sent, on two
State Light-Emitting Diode it is luminous when, three kinds of feux rouges and green glow, feux rouges and blue light, blue light and green glow blend colors can be sent
Light, when three above-mentioned Light-Emitting Diodes are all luminous, white light can be produced, when three above-mentioned Light-Emitting Diodes are all non-luminous
When, produced without any light, black is presented in the lamp bead of multi-color LED element 11.Table 1 is glow color and octal system
The corresponding table of data, data sending device 1 can drive multi-color LED element 11 to produce eight kinds of different face according to table 1
The visible light signal of color.
The corresponding table of the glow color of table 1 and octal data
Fig. 2 is the structural representation of the embodiment visible light communication system of the utility model one, as shown in Fig. 2 this practicality is new
The visible light communication system that type provides, include the data sending device 1 and data sink 2 of any of the above-described embodiment, wherein：
Data sink 2 includes video camera 21 and graphics processing unit 22, video camera 21 and the phase of graphics processing unit 22
Even, data sink 2 receives the multicolor visible light signal by video camera 21, and by graphics processing unit 22 by described in
Multicolor visible light signal is converted into image information, and data sink 2 parses according to the multicolor visible light signal resolution table to prestore
Described image information.Wherein, the content of the multicolor visible light signal resolution table storage is similar with the described information transmission table of comparisons,
Here is omitted.
For example, carry out visible light communication, multi-color LED using visible light communication system provided by the utility model
Element 11 can send red and blue two color light, described information send the table of comparisons store the basic data with it is multicolor luminous
Diode element 11 can send the corresponding relation of color：00 is corresponding with black, and 01 is corresponding with red, and 10 is corresponding with blueness, 11 with
Pink colour is corresponding, and correspondingly, the multicolor visible light signal resolution table, which stores multi-color LED element 11, can send color
With the corresponding relation of the basic data, black is corresponding with 00, and red corresponding with 01, blueness is corresponding with 10, and pink colour is corresponding with 11.
When needing to send information " 1100 ", data sending device 1 sends the table of comparisons according to described information and " 1100 " is converted into driving
Multi-color LED element 11 sends the illuminated message of " pink colour, black " successively, is then driven according to above-mentioned illuminated message more
The red LED and blue led of color light-emitting diode 11 simultaneously light, produce pink colour visible light signal, then red LED and
Blue led extinguishes simultaneously, represents black visible light signal.Video camera 21 sends above-mentioned polychrome in multi-color LED element 11
During visible light signal, the pink colour visible light signal and the black visible light signal are received successively, and graphics processing unit 22 will
Above-mentioned multicolor visible light signal is converted into corresponding image information, and described image information includes the frame powder being sequentially arranged
Coloured light image and a frame black light image, data sink 2 is according to the multicolor visible light signal resolution table to above-mentioned two frame
Image information is parsed, and is restored the transmission information " 1100 ", is completed visible light communication.
Visible light communication system provided by the utility model, data sending device sends the table of comparisons according to the information to prestore will
Information to be sent is converted into illuminated message, and drives multi-color LED element to send multicolor visible light letter according to illuminated message
Number, data sink receives multicolor visible light signal by video camera, and is believed multicolor visible light by graphics processing unit
Image information number is converted into, data sink parses image information according to the multicolor visible light signal resolution table to prestore, improves
The information transfer efficiency of visible light communication.
On the basis of above-described embodiment, further, data sink 2 includes second processing unit 23, at second
Reason unit 23 is connected with graphics processing unit 22, for parsing described image letter according to the multicolor visible light signal resolution table
Breath, obtain the information to be sent.Wherein, second processing unit 23 can use chip microcontroller.
On the basis of the various embodiments described above, further, data sending device 1 is multiple.It is provided by the utility model
Visible light communication system can include multiple data sending devices 1, and data sink 2 is in effective range of receiving of video camera
The multicolor visible light signal of above-mentioned multiple data sending devices 1 can be received simultaneously.
On the basis of the various embodiments described above, further, video camera 21 uses cmos camera.
On the basis of the various embodiments described above, further, data sink 2 uses smart mobile phone.Due to the intelligence
Energy mobile phone has been widely used, and using the smart mobile phone as the data sink, it is new can to expand this practicality
The application for the visible light communication system that type provides, has saved the cost of visible light communication system.
Fig. 3 is the schematic flow sheet of the embodiment visible light communication method of the utility model one, as shown in figure 3, this practicality is new
The visible light communication method that type provides, including：
The information that S301, basis prestore sends the table of comparisons and information to be sent is converted into illuminated message；
Specifically, data sending device obtains information to be sent, first, described when carrying out needing to send into row information
The first processing units of data sending device will send the table of comparisons according to the information to prestore and the information to be sent be converted into hair
Optical information.Wherein, described information sends the table of comparisons and stores the basic data, and one-to-one with the basic data
The glow color of multi-color LED element.The first processing units are according to the basic data by the information to be sent
The glow color sequence of the multi-color LED element is converted into, it is then that the glow color is Sequence Transformed for driving institute
State the luminous illuminated message of multi-color LED element.
S302, multicolor visible light signal sent according to the illuminated message.
Specifically, after the illuminated message is obtained, the first processor of the data sending device is according to
Illuminated message drives the multi-color LED element to send visible light signal.
Visible light communication method provided by the utility model, because data sending device can be sent according to the information to prestore
Information to be sent is converted into illuminated message by the table of comparisons, and drives multi-color LED element to send polychrome according to illuminated message
Visible light signal, improve the information transfer efficiency of visible light communication.
On the basis of above-described embodiment, further, the multicolor visible light signal includes error-checking code.For example,
The multicolor visible light signal includes parity check code, and the parity check code can pass through in the multicolor visible light signal
The colour sequential of setting is presented, for examining the correctness of transmitted information.Wherein, the colour sequential of the setting is according to reality
Situation is set, and the utility model embodiment does not limit.
On the basis of the various embodiments described above, further, the multicolor visible light signal includes default initial signal.
The default start information is used to identify the data sending device, the data sink receive the polychrome can
After seeing the default initial signal in optical signal, it can judge to send the data sending device of the default initial signal as mesh
Data sending device is marked, i.e., described data sink should receive the multicolor visible light letter that above-mentioned data sending device is sent
Number, so as to avoid the interference that other light sources transmit to the multicolor visible light signal in environment.Wherein, described default
Beginning signal is appeared in the multicolor visible light signal with default colour sequential, and the default colour sequential is according to actual feelings
Condition is set, and the utility model embodiment does not limit.
The idiographic flow of the utility model embodiment of the method is referred to the introduction of above-mentioned each device embodiment, herein no longer
Repeat.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (7)
- A kind of 1. data sending device, it is characterised in that including first processing units and multi-color LED element, described One processing unit is connected with the multi-color LED element, wherein：The first processing units are used to information to be sent is converted into illuminated message according to the information transmission table of comparisons to prestore, and The multi-color LED element is driven to send multicolor visible light signal according to the illuminated message.
- 2. device according to claim 1, it is characterised in that the multi-color LED element includes being integrated in one Red light emitting diodes, green LED and blue LED in lamp bead.
- 3. a kind of visible light communication system, it is characterised in that including data sending device sum as claimed in claim 1 or 2 According to reception device, wherein：The data sink includes video camera and graphics processing unit, the video camera and described image processing unit phase Even, the data sink receives the multicolor visible light signal by the video camera, and handles list by described image The multicolor visible light signal is converted into image information by member, and the data sink is according to the multicolor visible light signal to prestore Resolution table parses described image information.
- 4. system according to claim 3, it is characterised in that the data sink includes second processing unit, institute State second processing unit with described image processing unit to be connected, for according to multicolor visible light signal resolution table parsing Image information.
- 5. system according to claim 3, it is characterised in that the data sending device is multiple.
- 6. system according to claim 3, it is characterised in that the video camera uses cmos camera.
- 7. according to the system described in any one of claim 3 to 6, it is characterised in that the data sink uses intelligent hand Machine.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107332617A (en) * | 2017-08-21 | 2017-11-07 | 重庆思柏高科技有限公司 | A kind of data sending device, visible light communication system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332617A (en) * | 2017-08-21 | 2017-11-07 | 重庆思柏高科技有限公司 | A kind of data sending device, visible light communication system and method |
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