CN104202087B - Visible light source and the modulation indication method for visible light source - Google Patents
Visible light source and the modulation indication method for visible light source Download PDFInfo
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Abstract
The invention discloses a kind of visible light source and the modulation instruction device for visible light source and modulation indication method.The visible ray that this visible light source is launched can be modulated to transmission information, for example, be used for positioning.This visible light source includes modulating instruction device, for indicating that the visible ray that this visible light source is launched is modulated.Or, modulation instruction device is associatedly set with visible light source.In one embodiment, modulation instruction device includes：Light-receiving member, for receiving the visible ray from visible light source；Light analysis component, for being analyzed to the visible ray being received, to determine whether visible ray is modulated；And indicate indicator, for the result of determination according to light analysis component, indicate whether visible ray is modulated.Thus, establishing incidence relation between the recognizable mark of human eye non-discernable modulation (or unmodulated) visible ray and human eye, being easy to whether people's identification visible light source is modulated, to be operated further.
Description
Technical field
The present invention relates to a kind of visible light source, particularly transmitting be modulated to transmission information the visible light source of visible ray and
Modulation instruction device for visible light source.
Background technology
In recent years it is seen that optical communication technique has obtained comprehensive development.By pulsewidth modulation, dutycycle are carried out to visible ray
Modulation, phase-modulation, frequency modulation(PFM) or amplitude modulation(PAM), can make visible ray transmit letter in the imperceptible mode of human eye
Breath.
The application prospect of visible light communication technology is boundless.
As an example it is seen that optical communication technique can be used for indoor accurate position.The visible light source modulated passes through
The modulation visible ray that visible light communication technology transmitting carries positional information (or the identification information corresponding to positional information) (is adjusted
The visible ray of system).The mobile phone of user or other can be used for modulating visible ray to the equipment reception that modulation visible ray is demodulated, and
It is demodulated to obtain positional information, thus realizing positioning.Based on the positional information being obtained, can further be navigated
Deng operation.
For example, it is possible to by being modulated to LED visible light source, the identification information distributing to each visible light source be launched
Go out.When the photographic head of the terminals such as mobile phone receives the visible ray that this visible light source sends, can be by visible in terminal
Optical demodulating apparatus demodulate this identification information, and based on the corresponding relation between this identification information and indoor location, obtain corresponding positions
Confidence ceases, thus realizing the indoor accurate position of terminal.
With the development carrying out indoor accurate position technology using indoor visible light illumination, some indoor places start to install
The visible light source of the modulation visible ray carrying positional information can be launched.These light sources provide and conventional light source identical illumination effect
Really, and while realizing illumination, also provide positional information.
It should be appreciated that above-mentioned location technology is not limited to indoor positioning.The street lamp of such as both sides of highway can also equally be sent out
Penetrate modulation visible ray to transmit its identification information, so that terminal unit can obtain corresponding positional information, realize positioning
Or even navigation.
However, as described above, human eye cannot distinguish both light sources by the light that both light sources send.When user's examination
Desire to make money or profit when positioned with visible ray, can only attempt one by one demodulating each visible light source by using terminal units such as mobile phones
The visible ray being sent, until demodulating successfully.Only have the visible of a small amount of visible light source transmitting particularly in multiple visible light sources
In the case that light is modulated, this will be very troublesome thing.
In addition, in the case of demodulating unsuccessfully, nor determine that this visible light source is not modulated.This has multiple possibility,
Such as demodulated equipment fault etc..
It can be seen that, judge whether the light that visible light source sends is modulated at present still pretty troublesome.
Content of the invention
A technical problem to be solved by this invention is to provide a kind of visible light source and the modulation for visible light source to refer to
Showing device and modulation indication method, it makes the demodulated equipment that user carries without using oneself, you can judge this visible light source
Whether the visible ray launched is modulated.
According to the first aspect of the invention, there is provided a kind of visible light source, the visible ray that it is launched is modulated to pass
Defeated information, this visible light source includes：Modulation instruction device, for indicating that the visible ray that this visible light source is launched is modulated.
Preferably, modulation instruction device can be attached to the visual identification on the shell of visible light source.Or, modulation refers to
Showing device can also be the part on the shell of visible light source with predefined external appearance.
Preferably, predefined external appearance can include one of predetermined color, reservation shape, predetermined pattern, predetermined word or
Multiple.
Preferably, modulation instruction device may be used to indicate that the modulation system of visible ray.
Preferably it is seen that the modulation system of light can include pulsewidth modulation, duty ratio modulation, phase-modulation, frequency modulation(PFM),
One or more of amplitude modulation(PAM).
Preferably, modulation instruction device can include：Light-receiving member, for receiving visible ray；Light analysis component, connects
To light-receiving member, the visible ray for being received to light-receiving member is analyzed, to determine whether visible ray is modulated；With
And indicate indicator, it is connected to light analysis component, for the result of determination according to light analysis component, indicate whether visible ray is adjusted
System.
Preferably, light analysis component can include：Modulation system analysis component, for analyzing the modulation system of visible ray.
Indicate indicator, always according to the result of determination of modulation system analysis component, indicates the modulation system of visible ray.
Preferably, indicate indicator can be display or one or more light emitting diode.
In one embodiment, the light that this visible light source is launched is modulated to transmit the identification information of visible light source.
In one embodiment, identification information can be used for indoor positioning.
According to the second aspect of the invention, there is provided a kind of modulation instruction device for visible light source, including：Light connects
Receive part, for receiving the visible ray from visible light source；Light analysis component, for being analyzed to the visible ray being received,
To determine whether visible ray is modulated；And indicate indicator, for the result of determination according to light analysis component, indicate that visible ray is
No modulated.
Preferably, light analysis component can also include：Modulation system analysis component, for analyzing the modulation methods of visible ray
Formula.Indicate indicator, always according to the result of determination of modulation system analysis component, indicates the modulation system of visible ray.
Preferably, indicate indicator can be display or one or more light emitting diode.
According to the third aspect of the present invention, there is provided the visible ray that a kind of instruction visible light source is launched is modulated to pass
The method of defeated information, the method includes：Determine the relative position associating with visible light source；And setting modulation at relative position
Instruction device, modulation instruction device indicates that the visible ray that this visible light source is launched is modulated.
Preferably, relative position can be on the shell of visible light source.
Preferably, modulation instruction device can be the part on visual identification or shell with predefined external appearance.
Preferably, predefined external appearance includes one or more of predetermined color, reservation shape, predetermined pattern, predetermined word.
Preferably, modulation instruction device may be used to indicate that the modulation system of visible ray.
Preferably it is seen that the modulation system of light can include pulsewidth modulation, duty ratio modulation, phase-modulation, frequency modulation(PFM),
One or more of amplitude modulation(PAM).
In addition, modulation instruction device can also be modulation instruction device according to a second aspect of the present invention.
In the present invention, recognizable in human eye non-discernable modulation (or unmodulated) visible ray and human eye
Establishing incidence relation between mark, being easy to whether people's identification visible light source is modulated, to be operated further.
Brief description
Fig. 1 is the schematic appearance of existing visible light source.
Fig. 2 is the schematic appearance of the visible light source according to the present invention.
Fig. 3 is the schematic block diagram of the modulation instruction device that can be used for visible light source according to the present invention.
Fig. 4 is the indicative flowchart of the modulation indication method according to the present invention.
Specific embodiment
Below it is only the detailed description to flesh and blood of the present invention, is not related to the restriction to the application and use, additionally, appointing
Theory in what aforementioned background art, summary or the following detailed description, conception all do not constitute the limit to the scope of the present invention
System.That detailed description below is exemplary in nature it is not intended to limit the application and purposes.In addition it is not intended to
Limited by listed any theory in aforementioned background art or content of the invention or detailed description below.
Below with reference to the accompanying drawings visible light source according to the present invention and the modulation instruction device for visible light source and tune are described
Indicating means processed.
Fig. 1 schematically shows existing visible light source.
As shown in figure 1, the shell in existing conventional visible source can include being located at the light transmission part of such as center
10 and be located at such as surrounding lightproof part 20.
The shell of visible light source shown in Fig. 1 is square.However, it will be understood by those skilled in the art that visible light source
Shell shape can be arbitrary shape, such as rectangle, circle, annular etc..
The shell of visible light source shown in Fig. 1 has light transmission part 10 and lightproof part 20.However, people in the art
Member is it should be understood that shell can also whole printing opacities.
Light transmission part 10 shown in Fig. 1 is in center, and lightproof part 20 is in surrounding.However, people in the art
Member should be understood that for example in the case of annular luminous part or light transmission part 10 is in surrounding, and lightproof part 20
In center.
Visible light source shown in Fig. 1 is not distinguished and is shown whether the visible ray that it is launched is modulated to transmission information.
Common visible light source and the visible light source through ovennodulation do not have any difference in the perceptible degree of human eye.As background
It is difficult to judge whether the light that visible light source sends is modulated described in technology segment.
Fig. 2 schematically shows the visible light source according to the present invention.
As shown in Fig. 2 according to the visible light source of the present invention can with Fig. 1 shown in visible light source essentially identical, its shell
Partly equally there is light transmission part 10 and lightproof part 20.
Above with reference in the description of Fig. 1, the statement of light transmission part 10 and lightproof part 20 is equally applicable to shown in Fig. 2
The shell of visible light source.
Compared with visible light source shown in Fig. 1, visible light source shown in Fig. 2 increased modulation instruction device 30.
Modulation instruction device 30 can serve to indicate that whether the visible ray that this visible light source is launched is modulated (in the disclosure
It is referred to as " visible light source is modulated ") in text.For example, it is possible to the visible light source do not modulated and modulated can
See that light source makes different instructions.Or, modulation instruction device 30 can be arranged on the visible light source modulated, and not have
It is not provided with the visible light source modulated modulating instruction device 30.
Modulation instruction device 30 can be arranged on the shell of visible light source, or can also be arranged on by visible light source
Side.
Preferably, modulation instruction device 30 can be provided in the visual identification on the shell of visible light source.Thus, in people
Incidence relation is established between non-discernable modulation (or unmodulated) visible ray of class naked eyes and the recognizable mark of human eye,
It is easy to whether people's identification visible light source is modulated, to be operated further.
In Fig. 2, modulation instruction device 30 is arranged on lightproof part 20.However, the invention is not restricted to this.Modulation instruction
Device 30 can also be arranged on light transmission part 10 in the case of not affecting printing opacity as far as possible.Or, there is no lightproof part
In the case of 20, it is arranged on light transmission part 10.
With its predefined external appearance, modulation instruction device 30 can indicate whether visible light source is modulated.For example, predefined external appearance
One or more of predetermined color, reservation shape, predetermined pattern, predetermined word can be included.
For example, green mark represents that visible light source is modulated, and red mark represents that visible light source is not modulated.
Or, for example, rectangle mark represents that visible light source is modulated, and circular indicia represents that visible light source is not modulated.
Or, can indicate whether visible light source is modulated by being sent the light of different colours by light emitting diode.
In addition, modulation instruction device 30 can also indicate the modulation system of visible ray further.As it was noted above, can lead to
Various modes are crossed visible ray to be modulated to transmit information, for example, pulsewidth modulation, duty ratio modulation, phase-modulation, frequency
Modulation or amplitude modulation(PAM).Corresponding modulation system can be indicated using multi-form.For example, it is possible to different colours and/or
Of different shapes mark to represent different modulation systems.
Described above is using modes such as mark or light emitting diodes, according to installation personnel or management personnel to visible light source
The understanding whether modulated to arrange the embodiment of changeless modulation instruction device 30.
However, for outward appearance identical visible light source, installation personnel or management personnel are also possible to whether be difficult to differentiate between it
Modulated.Or, even if being provided with modulating device in visible light source, modulating device is likely to because a variety of causes is without opening
Or do not work.
Fig. 3 shows a kind of implementation of modulation instruction device 30, and whether it can be adjusted automatic detection visible light source
System, and accordingly provide instruction.Such modulation instruction device 30 is respectively provided with visible light source, can clearly and easily
Show whether each visible light source is modulated.
As shown in figure 3, modulation instruction device 30 can include light-receiving member 32, light analysis component 34 and indicate indicator
36.
Light-receiving member 32 can penetrate enclosure, directly receives the visible ray that visible light source sends inside the shell.
Light-receiving member 32 can also be arranged on housing exterior, receives, from outer side, the visible ray that visible light source sends.
Light analysis component 34 is connected to light-receiving member 32.It is visible that light analysis component 34 is received to light-receiving member 32
Light is analyzed, to determine whether this visible ray is modulated to transmission information.
Light analysis component 34 can be analyzed by various modes.
For example, light analysis component 34 can be visible optical demodulating apparatus, and the visible ray that light-receiving member 32 is received enters
Row demodulation, if demodulated successfully, shows that this visible ray is modulated.
In addition, light analysis component 34 can also be by the frequency of the visible ray that light-receiving member 32 is received, amplitude, arteries and veins
Width, dutycycle, phase place etc. are detected and are analyzed, and to judge whether this visible ray is modulated.
Indicate indicator 36 is connected to light analysis component 34, according to the result of determination of light analysis component 34, indicates described visible
Whether light is modulated.
Indicate indicator 36 can be for example one or more light emitting diodes.By controlling whether light emitting diode lights,
Launch the light of what color, or which lumination of light emitting diode, to indicate visible ray that this visible light source sends whether by
Modulation.
Or, indicate indicator 36 can be display, for example 7-segment code display, light-emitting diode display, LCD display etc., root
Judged result according to light analysis component 34 is shown, thus indicating whether the visible ray that this visible light source sends is modulated.Aobvious
Show that content can be word, code, symbol, given shape, specific pattern etc..
Light analysis component 32 may further include modulation system analysis component (not shown).Modulation system analysis portion
Part analysis visible ray is modulated with what modulation system.
In this case, indicate indicator 36 can further indicate that the modulation system of visible ray.For example can be by literary composition
The modes such as word, code, symbol, given shape, specific pattern indicate specific modulation system.
Modulation system analysis component can include the demodulating equipment of the visible ray for various modulation systems, respectively to visible
Light is modulated.When the demodulating equipment using certain modulation system demodulates successfully, show that this visible ray is used this modulation
Mode is modulated.
In addition, modulation system analysis component can also be by the frequency of visible ray, amplitude, pulsewidth, dutycycle, phase place etc.
Detected and analyzed, judged which parameter of this visible ray is modulated, so that it is determined that the modulation system of visible ray.
When modulation instruction device 30 as shown in Figure 3 is arranged on visible light source, even if not installing management personnel also not
Whether solution visible light source is modulated, even if or being possible to not open the feelings of modulation function in the visible light source with modulating device
It is also possible to automatically analyze whether visible light source is modulated under condition, and can be distinguished with human eye and indicated otherwise, thus
Automatically establish between the recognizable mark of human eye non-discernable modulation (or unmodulated) visible ray and human eye
Incidence relation, is easy to whether people's identification visible light source is modulated, to be operated further.
Next, indicating that the visible ray that visible light source is launched is modulated to transmission letter with reference to Fig. 4 description according to the present invention
The method of breath.
Fig. 4 is the indicative flowchart of the modulation indication method according to the present invention.
As shown in figure 4, first, in step S100, determine the relative position associating with visible light source.
In one embodiment, this relative position can be on the guest who is not a relative of visible light source.
Next, in step S200, setting modulation instruction device at relative position, modulation instruction device indicates that this is visible
The visible ray that light source is launched is modulated.
As described in refer to the attached drawing 2 above, modulation instruction device can be visual identification.So, setting modulation instruction device
Step can include it will be seen that mark be arranged on the shell of such as visible light source.This visual identification indicates this visible light source institute
The light of transmitting is modulated.User sees the visual identification associating setting with visible light source, just understands that this visible light source is to be modulated
Visible light source.
In addition, modulation instruction device can also be the part on the shell of visible light source with predefined external appearance.So, arrange
The step of modulation instruction device can include：On the shell of visible light source, setting has the part of predefined external appearance.This can be
When manufacturing visible light source, execution, for example, be set to be different from the predefined external appearance of other visible light sources by a part for shell.This
Can also execute after visible light source manufacture completes, such as additionally add on having manufactured the visible light source completing and have
The part-structure of predefined external appearance.
Predefined external appearance includes one or more of predetermined color, reservation shape, predetermined pattern, predetermined word.
In addition, modulation instruction device is also designed as can indicating the modulation system of visible ray further.
Above, it will be seen that the modulation system of light can include pulsewidth modulation, duty ratio modulation, phase-modulation, frequency tune
One or more of system, amplitude modulation(PAM).
In addition, modulation instruction device can also be the modulation instruction device above with reference to Fig. 3 description.
So far, the visible light source according to the present invention and the modulation instruction device for visible light source and tune have been described in detail
The specific embodiment of indicating means processed.It would be appreciated by those skilled in the art that the invention is not restricted to described herein various
Details, but suitable modification can be made.Protection scope of the present invention is defined by the appended claims.
Claims (13)
1. a kind of visible light source for illumination, the visible ray that it is launched is modulated to transmission information, and this visible light source includes：
Modulation instruction device, for indicating that the visible ray that this visible light source is launched is modulated,
Wherein, described modulation instruction device includes：
Light-receiving member, for receiving described visible ray；
Light analysis component, is connected to described light-receiving member, and the visible ray for being received to described light-receiving member is carried out point
Analysis, to determine whether described visible ray is modulated；And
Indicate indicator, is connected to described smooth analysis component, and for the result of determination according to described smooth analysis component, instruction is described can
See whether light is modulated.
2. visible light source according to claim 1, wherein, described modulation instruction device is additionally operable to indicate described visible ray
Modulation system.
3. visible light source according to claim 2, wherein, the modulation system of described visible ray includes pulsewidth modulation, duty
Than one or more of modulation, phase-modulation, frequency modulation(PFM), amplitude modulation(PAM).
4. visible light source according to claim 2, wherein, described smooth analysis component includes：
Modulation system analysis component, for analyzing the modulation system of described visible ray,
Described indicate indicator, always according to the result of determination of described modulation system analysis component, indicates the modulation methods of described visible ray
Formula.
5. the visible light source according to claim 1 or 4, wherein, described indicate indicator is display or one or more
Light emitting diode.
6. the visible light source according to any one of Claims 1-4, the light that wherein this visible light source is launched is modulated
To transmit the identification information of described visible light source.
7. visible light source according to claim 6, described identification information is used for indoor positioning.
8. the method that the visible ray that a kind of visible light source indicating for illumination is launched is modulated to transmission information, the method bag
Include：
Determine the relative position associating with described visible light source；And
Setting modulation instruction device at described relative position, what described modulation instruction device indicated that this visible light source launched can
See that light is modulated,
Wherein, described modulation instruction device includes：
Light-receiving member, for receiving the visible ray from visible light source；
Light analysis component, for being analyzed to the visible ray being received, to determine whether described visible ray is modulated；And,
Indicate indicator, for the result of determination according to described smooth analysis component, indicates whether described visible ray is modulated.
9. method according to claim 8, wherein, described relative position is on the shell of described visible light source.
10. method according to claim 8, wherein, described modulation instruction device is additionally operable to indicate the tune of described visible ray
Mode processed.
11. methods according to claim 10, wherein, the modulation system of described visible ray includes pulsewidth modulation, dutycycle
One or more of modulation, phase-modulation, frequency modulation(PFM), amplitude modulation(PAM).
12. methods according to claim 10, wherein, described smooth analysis component also includes：
Modulation system analysis component, for analyzing the modulation system of described visible ray,
Described indicate indicator, always according to the result of determination of described modulation system analysis component, indicates the modulation methods of described visible ray
Formula.
Method described in 13. according to Claim 8 or 12, wherein, described indicate indicator is display or one or more luminous
Diode.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1914940A (en) * | 2004-02-02 | 2007-02-14 | 株式会社中川研究所 | Position information communication apparatus |
| JP2012195763A (en) * | 2011-03-16 | 2012-10-11 | Seiwa Electric Mfg Co Ltd | Electronic apparatus and data collection system |
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| CN201323585Y (en) * | 2008-12-26 | 2009-10-07 | 南京邮电大学 | Modulation mode identifying module realized on the basis of digital signal processor |
| CN102324972A (en) * | 2011-05-23 | 2012-01-18 | 中北大学 | Coding Modulation Method Based on MEMS Infrared Light Source Array |
| US9917644B2 (en) * | 2012-10-09 | 2018-03-13 | Booz Allen Hamilton Inc. | Method and system for data transmission and communication using imperceptible differences in visible light |
| US8942571B2 (en) * | 2012-12-24 | 2015-01-27 | Industrial Technology Research Institute | Apparatus and method for data embedding in light communication and the light communication system and method thereof |
| CN104038284A (en) * | 2014-06-10 | 2014-09-10 | 南京复实通讯科技有限公司 | Visible light communication system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1914940A (en) * | 2004-02-02 | 2007-02-14 | 株式会社中川研究所 | Position information communication apparatus |
| JP2012195763A (en) * | 2011-03-16 | 2012-10-11 | Seiwa Electric Mfg Co Ltd | Electronic apparatus and data collection system |
Non-Patent Citations (1)
| Title |
|---|
| 基于室内可见光照明的位置服务系统;娄鹏华等;《光电子·激光》;20121231;第2298-2303页 * |
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