CN108880681A - A kind of projecting method and equipment based on the li-fi communication technology - Google Patents
A kind of projecting method and equipment based on the li-fi communication technology Download PDFInfo
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- CN108880681A CN108880681A CN201810519806.XA CN201810519806A CN108880681A CN 108880681 A CN108880681 A CN 108880681A CN 201810519806 A CN201810519806 A CN 201810519806A CN 108880681 A CN108880681 A CN 108880681A
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- barn door
- light
- communication technology
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
Abstract
The present invention provides a kind of projecting method and equipment based on the li-fi communication technology, includes the following steps：S1 prepares the manuscript that will be demonstrated in presentation terminal in advance, and PowerPoint internal labeling automatically opens barn door at the time of point and barn door at the time of point is automatically closed；S2 adjusts the light of indoor LED lamp, controls the coverage area of li-fi；S3li-fi adapter connects light signal, and playing demonstration document was played to the time point of label, sends driving instruction to barn door and drives；The driving of barn door described in S4 is controlled according to the driving instruction of receiving closes barn door or opens barn door, and then controls the pause of PowerPoint and continue to play.Equipment provided by the invention can be automatically stopped or the content of playing demonstration document.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of projecting methods and equipment based on the li-fi communication technology.
Background technique
To the quick arriving in 4G epoch from 2G to 3G, wi-fi technology cause it is huge promotion be it is unquestionable, still
With the discovery of scientist, li-fi technology, that is, visible light wireless communication technology starts to continue to develop, the fast safety of the big speed of capacity
Height makes it by extraneous good extensively.
Projection device is quite mature what is developed now, and being built the li-fi communication technology may be implemented projection
It is automatically stopped and plays.In addition, the secrecy of file can be increased for the meeting or speech of secret since light can not be through walls
Property.
Summary of the invention
Goal of the invention：The present invention provides can be automatically stopped or one kind of playing demonstration document based on li-fi communicate
The projecting method and equipment of technology.
Technical solution：The invention is realized by the following technical scheme：
A kind of projecting method based on the li-fi communication technology, includes the following steps：
S1 prepares the manuscript that will be demonstrated in presentation terminal in advance, PowerPoint internal labeling automatically open barn door at the time of point and
Barn door at the time of point is automatically closed；
S2 adjusts the light of indoor LED lamp, controls the coverage area of li-fi；
S3li-fi adapter connects light signal, and playing demonstration document plays to the time point of label, sends driving instruction extremely
Barn door driving；
The driving of barn door described in S4 is controlled according to the driving instruction of receiving closes barn door or opens barn door, and then controls demonstration
The pause of manuscript and continue to play.
As a preferred solution of the present invention, in step sl, the PowerPoint is to be uploaded in li-fi network
File, including text or video information；It is described label automatically open barn door at the time of point and be automatically closed barn door when
Punctum is marked according to content and time.
As a preferred solution of the present invention, the step S1, PowerPoint have a preset time.
As a preferred solution of the present invention, the beam angle in the step S2, also by adjusting the indoor LED lamp
Degree and beam intensity, and then control the coverage area of li-fi.
As a preferred solution of the present invention, in the step S2, the beam angle and li-fi of the indoor LED lamp
The relationship of the coverage area of network is θ=karctan (L-L0)+θ 0, wherein L ∈ (0 ,+∞), k ∈ (0,1), θ
For the beam angle of the interior LED, L is the coverage area of Li-Fi network, and k, θ 0 and L0 are constant, and k indicates beam angle
Proportionality constant between θ and Li-Fi network coverage diameter, θ 0 indicate that the light beam initial angle of indoor LED lamp, L0 indicate
The threshold value of Li-Fi network coverage diameter, the codomain of beam angle θ are that (θ 0, k pi/2+θ are 0) by θ ∈.
As a preferred solution of the present invention, a kind of projection device based on the li-fi communication technology, including ontology, institute
Stating ontology includes li-fi adapter, and the li-fi adapter is suitable for any mobile terminal, is installed on the li-fi adapter
There are light receiver device and light baffling device；The light receiver device is used to receive light signal, the light receiver dress
Set interior installation photosensitive sensor；The light baffling device includes barn door, for preventing light signal from entering photosensitive sensor；
The barn door is fixedly mounted on the side of the light receiver device, obstructs light signal by rotary moveable.
As a preferred solution of the present invention, the light baffling device further includes darkening ring, the darkening ring installation
Centre is enclosed in the periphery of the photosensitive sensor and the barn door.
It as a preferred solution of the present invention, further include one or more LED light or light emitting diode, the LED
Li-fi chip is installed, the li-fi chip is for being compatible with the adapter, the li-fi core in lamp or light emitting diode
Include li-fi transmitter in piece, is used for transmission data.
As a preferred solution of the present invention, the adapter further includes image amplification treatment circuit, for realizing number
According to the output of stream.
The present invention realizes following beneficial effect：
1. playing demonstration document can be automatically stopped or be started according to content-label or time label；
2. preventing light from reflecting by the covering to photosensitive sensor, li-fi connection is disconnected；
3. reaching specified time to open to photosensitive sensor covering, li-fi signal is connected.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and consistent with the instructions for explaining the principles of this disclosure.
Fig. 1 is a kind of flow chart of projecting method provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of angle and coverage area provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of light baffling device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment one：
According to Fig. 1, Fig. 1 is a kind of flow chart of projecting method provided in an embodiment of the present invention；One kind being based on the li-fi communication technology
Projecting method, include the following steps：
S1 prepares the manuscript that will be demonstrated in presentation terminal in advance, PowerPoint internal labeling automatically open barn door at the time of point and
Barn door at the time of point is automatically closed；
S2 adjusts the light of indoor LED lamp, controls the coverage area of li-fi；
S3li-fi adapter connects light signal, and playing demonstration document plays to the time point of label, sends driving instruction extremely
Barn door driving；
The driving of barn door described in S4 is controlled according to the driving instruction of receiving closes barn door or opens barn door, and then controls demonstration
The pause of manuscript and continue to play.
In step S1 described in this example, prepare the manuscript that will demonstrate in advance, specifically, will will be in server or internet
Data flow pass through Digital Signal Processing, information is added to the transmitting of li-fi chip including coding, debugging and other method
Emitted in device, after the photosensitive sensor of adapter receives the light for carrying information, receives adapter and put small signal
It is big and be converted into terminal and can identify with received data flow, information is projected by projector, and then complete a li-
Fi communication.
In the step S2, by adjusting the beam angle and beam intensity of indoor LED lamp, and then control li-fi's
Coverage area.Specifically, the transmission due to li-fi is highly stable, even if only very narrow light beam, is still able to carry out file
Transmission, in li-fi network, individual data channel width can be made greatly, and the rate of transmission can increase LED light quickly
The intensity of light can increase light coverage area, and then increase the coverage area of li-fi, and the angle for adjusting light can change
The coverage area of li-fi.
Preferably, in step sl, the PowerPoint is the file being uploaded in li-fi network, including text or
Video information；The label automatically opens barn door at the time of point and is automatically closed barn door at the time of point, according to content and when
Between mark, specifically, the PowerPoint of such as one video, explained when needing some node needs in video to stop
When, can be marked in advance in the node, i.e., according to content-label, when label should mark clearly be pause instruction or
Continue the instruction played；It is chiefly used in the label of video file according to time label, or for drilling time requirement is very high
Show in manuscript, the specific specific time for after demonstration starts is marked, and starts to continue to play according to user's
Demand can arrange the time of pause, or can be opened with remote manual control barn door and continue to play.PowerPoint have one it is default when
Between.
Preferably, in the step S2, the pass of the coverage area of the beam angle and li-fi network of the indoor LED lamp
System is θ=karctan (L-L0)+θ 0, wherein L ∈ (0 ,+∞), k ∈ (0,1), θ are the light beam of the interior LED
Angle, L are the coverage area of Li-Fi network, and k, θ 0 and L0 are constant, and k indicates beam angle θ and Li-Fi network coverage model
The proportionality constant between diameter is enclosed, θ 0 indicates that the light beam initial angle of indoor LED lamp, L0 indicate that Li-Fi network coverage is straight
The threshold value of diameter, the codomain of beam angle θ are that (0), this example controls Li-Fi net by the bright dark transformation of LED light to θ 0, k pi/2+θ to θ ∈
The variation of network coverage area, to a certain extent, what is reflected in fact is also the performance of beam angle to intensity of light；When LED light
When intensity of light changes, beam angle is also changing, and the coverage area of Li-Fi network can be with changing.Such as Fig. 2 institute
Show, after opening LED light, the beam angle of adjustable LED lamp and/or it is bright secretly control Li-Fi range, beam angle is by θ 1
When to θ 2, the coverage area of Li-Fi network has notable difference；The beam angle that θ 1 is inscribed when being first, θ 2 were the second moment
Under beam angle.
Embodiment two
As a preferred solution of the present invention, a kind of projection device based on the li-fi communication technology, including ontology, described
Body includes li-fi adapter, and the li-fi adapter is suitable for any mobile terminal, has adaptable interface on the li-fi, institute
It states and light receiver device and light baffling device is installed on li-fi adapter；The light receiver device is used to receive light
Signal, the light receiver device is interior to install photosensitive sensor 1；The light baffling device includes barn door 4, barn door button 3,
For preventing light signal from entering photosensitive sensor；The barn door 4 is fixedly mounted on the side of the light receiver device, leads to
Rotary moveable barrier light signal is crossed, one end of barn door is fallen into barn door button 3 after the barn door 4 rotates, in addition shading
Circle 2, prevent light is from reflecting into photosensitive sensor 1.The darkening ring 2 is mounted on periphery and the institute of the photosensitive sensor 1
It states the interior of barn door 4 and encloses centre.
It preferably, further include one or more LED light perhaps in the light emitting diode LED light or light emitting diode
Li-fi chip is installed, the li-fi chip emits in the li-fi chip comprising li-fi for being compatible with the adapter
Device is used for transmission data, that is, is utilized the Principles of Network of li-fi, li-fi, that is, LightFidelity, is a kind of to utilize visible light
The Radio Transmission Technology that wave spectrum carries out data transmission needs to install chip one hot spot of formation in LED light, so that
Equipment has access to wireless network.The adapter further includes image amplification treatment circuit, for realizing the output of data flow.
The above embodiments merely illustrate the technical concept and features of the present invention, and the purpose is to allow the skill for being familiar with the technical field
Art personnel can understand the content of the present invention and implement it accordingly, and can not be limited the scope of the invention with this.All bases
Equivalent changes or modifications made by spirit of the invention, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of projecting method based on the li-fi communication technology, which is characterized in that include the following steps：
S1 prepares the manuscript that will be demonstrated in presentation terminal in advance, PowerPoint internal labeling automatically open barn door at the time of point and
Barn door at the time of point is automatically closed；
S2 adjusts the light of indoor LED lamp, controls the coverage area of li-fi；
S3li-fi adapter connects light signal, and playing demonstration document plays to the time point of label, sends driving instruction extremely
Barn door driving；
The driving of barn door described in S4 is controlled according to the driving instruction of receiving closes barn door or opens barn door, and then controls demonstration
The pause of manuscript and continue to play.
2. a kind of projecting method based on the li-fi communication technology according to claim 1, which is characterized in that in step S1
In, the PowerPoint is the file being uploaded in li-fi network, including text or video information；The label is beaten automatically
It opens barn door at the time of point and barn door at the time of point is automatically closed, marked according to content and time.
3. a kind of projecting method based on the li-fi communication technology according to claim 1, which is characterized in that the step
S1, PowerPoint have a preset time.
4. a kind of projecting method based on the li-fi communication technology according to claim 1, which is characterized in that the step
In S2, also by adjusting the beam angle and beam intensity of the indoor LED lamp, and then the coverage area of li-fi is controlled.
5. a kind of projecting method based on the li-fi communication technology according to claim 1, which is characterized in that the step
In S2, the relationship of the coverage area of the beam angle and li-fi network of the indoor LED lamp be θ=karctan (L-L0)+
θ 0, wherein L ∈ (0 ,+∞), k ∈ (0,1), θ are the beam angle of the interior LED, and L is the covering of Li-Fi network
Range, k, θ 0 and L0 are constant, and k indicates the proportionality constant between beam angle θ and Li-Fi network coverage diameter, θ 0
Indicate that the light beam initial angle of indoor LED lamp, L0 indicate the threshold value of Li-Fi network coverage diameter, the codomain of beam angle θ
For θ ∈, (θ 0, k pi/2+θ are 0).
6. a kind of projection device based on the li-fi communication technology, including ontology, which is characterized in that the ontology includes li-fi suitable
Orchestration, the li-fi adapter are suitable for any mobile terminal, be equipped on the li-fi adapter light receiver device and
Light baffling device；The light receiver device is used to receive light signal, installs light sensor in the light receiver device
Device；The light baffling device includes barn door, for preventing light signal from entering photosensitive sensor；The fixed peace of the barn door
Mounted in the side of the light receiver device, light signal is obstructed by rotary moveable.
7. a kind of projection device based on the li-fi communication technology according to claim 6, which is characterized in that the light
Baffling device further includes darkening ring, the darkening ring be mounted on the photosensitive sensor periphery and the barn door in enclose
Between.
8. a kind of projection device based on the li-fi communication technology according to claim 6, which is characterized in that further include one
A or multiple LED light are perhaps equipped with li-fi chip, the li- in the light emitting diode LED light or light emitting diode
Fi chip includes li-fi transmitter in the li-fi chip, is used for transmission data for being compatible with the adapter.
9. a kind of projection device based on the li-fi communication technology according to claim 5, which is characterized in that the adaptation
Device further includes image amplification treatment circuit, for realizing the output of data flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810519806.XA CN108880681A (en) | 2018-05-28 | 2018-05-28 | A kind of projecting method and equipment based on the li-fi communication technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810519806.XA CN108880681A (en) | 2018-05-28 | 2018-05-28 | A kind of projecting method and equipment based on the li-fi communication technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108880681A true CN108880681A (en) | 2018-11-23 |
Family
ID=64335032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810519806.XA Pending CN108880681A (en) | 2018-05-28 | 2018-05-28 | A kind of projecting method and equipment based on the li-fi communication technology |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122440A (en) * | 2021-03-26 | 2021-07-16 | 海南欧瑞康健康管理有限公司 | Self-adjusting photobioreactor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262538A (en) * | 2015-09-07 | 2016-01-20 | 尹军 | Communication method and system based on optical information and device |
| CN105306855A (en) * | 2015-10-22 | 2016-02-03 | 武汉邮电科学研究院 | Projection system and method based on visible light communication |
| CN106209233A (en) * | 2016-07-13 | 2016-12-07 | 深圳喜乐航科技有限公司 | A kind of main cabin based on Li Fi reading lamp wireless communications method and system |
| CN106851422A (en) * | 2017-03-29 | 2017-06-13 | 苏州百智通信息技术有限公司 | A kind of video playback automatic pause processing method and system |
| CN107664946A (en) * | 2016-07-29 | 2018-02-06 | Eta瑞士钟表制造股份有限公司 | The optical communication equipment of wearable object |
-
2018
- 2018-05-28 CN CN201810519806.XA patent/CN108880681A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262538A (en) * | 2015-09-07 | 2016-01-20 | 尹军 | Communication method and system based on optical information and device |
| CN105306855A (en) * | 2015-10-22 | 2016-02-03 | 武汉邮电科学研究院 | Projection system and method based on visible light communication |
| CN106209233A (en) * | 2016-07-13 | 2016-12-07 | 深圳喜乐航科技有限公司 | A kind of main cabin based on Li Fi reading lamp wireless communications method and system |
| CN107664946A (en) * | 2016-07-29 | 2018-02-06 | Eta瑞士钟表制造股份有限公司 | The optical communication equipment of wearable object |
| CN106851422A (en) * | 2017-03-29 | 2017-06-13 | 苏州百智通信息技术有限公司 | A kind of video playback automatic pause processing method and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122440A (en) * | 2021-03-26 | 2021-07-16 | 海南欧瑞康健康管理有限公司 | Self-adjusting photobioreactor |
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Application publication date: 20181123 |