CN105450302B - It can be seen that light R-T unit, visible light communication terminal and visible light communication system - Google Patents
It can be seen that light R-T unit, visible light communication terminal and visible light communication system Download PDFInfo
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- CN105450302B CN105450302B CN201511028157.6A CN201511028157A CN105450302B CN 105450302 B CN105450302 B CN 105450302B CN 201511028157 A CN201511028157 A CN 201511028157A CN 105450302 B CN105450302 B CN 105450302B
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- 230000003287 optical effect Effects 0.000 claims abstract description 127
- 230000005540 biological transmission Effects 0.000 claims description 8
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- 210000004209 hair Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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Classifications
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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
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- Computer Networks & Wireless Communication (AREA)
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- Optical Communication System (AREA)
Abstract
The invention discloses a kind of visible light R-T unit, visible light communication terminal and visible light communication systems.Wherein, it is seen that light R-T unit is multi-direction visible light R-T unit, it is seen that optical communication terminal is multi-direction visible light communication terminal, it is seen that the visible light communication system of the multi-direction visible light communication terminal of optical communication system.Compared with prior art, visible light communication terminal of the present invention or its visible light R-T unit are provided with multiple optical transmitters and multiple optical receivers, therefore the available visible light signal of system from multiple directions can be received, visible light signal can also be sent to multiple directions, so as to solve the problems, such as that visible light communication directionality is poor caused by visible linear propagation of light, improve communication efficiency and quality of the visible light communication terminal under various regimes between each visible light communication base station, improve the reliability of visible light communication, better usage experience is provided to the user.
Description
Technical field
The invention belongs to visible light communication field, it is more particularly related to a kind of visible light R-T unit, visible
Optical communication terminal and visible light communication system.
Background technology
Light belongs to one kind of electromagnetic wave, the basic principle of communication network signal is consistent as radio wave.Light
Communication be using LED light light realize network signal transmission a kind of novel high speed data transmission technology, have green low-carbon,
Energy consumption is extremely low, the advantages that being not easy to leak, and is to have one of wireless communication technique of broad prospect of application.
The implementation method of visible light communication is：Microchip is loaded onto to common LED light, the flicker per second of control LED light is hundreds of
Ten thousand times, 1 is represented when lamp is bright, 0 is represented when lamp goes out, you can by binary data fast coding into light signal, carried out by LED light
Transmitting；Although human eye is not aware of the fast blink of LED light, photosensitive sensor can but receive these variations, therefore,
Using photosensitive sensor as signal receiver, it becomes possible to accurately receive light signal and be translated into electric signal, so as to complete
Into effective transmission of binary data.
But because visible ray is straightline propagation, existing visible light R-T unit all exists in actual use
The problem of directionality is poor, i.e. when the transmitting between visible communication optical base station and visible light communication terminal and receive direction deviation
When larger, the visible ray transmitted therebetween is difficult to realize receive completely, this has inevitably affected communication quality, even
Signal is caused to be not turned on.
The content of the invention
It is an object of the invention to：A kind of visible ray transmitting-receiving that can solve visible light communication directionality poor is provided
Device, visible light communication terminal and visible light communication system to improve the communication effect of visible light communication and quality, meet visible
The optical communication terminal requirement to communication quality in ambulatory situations.
In order to realize foregoing invention purpose, the present invention provides a kind of visible light R-T unit for visible light communication,
It includes mounting base, the optical transmitter for the optical receiver that receives visible light signal and for sending visible light signal, and light connects
It receives device and optical transmitter is installed on the outer surface of mounting base；The quantity of the optical receiver and optical transmitter is respectively two
Or it is more than two, and according to default angle and be intervally arranged in each comfortable mounting base as array structure, make visible ray transmitting-receiving dress
It is set to receive the available visible light signal of system from multiple directions, visible ray letter can be also sent to multiple directions
Number multi-direction visible light R-T unit.
Preferably, the outer surface of the mounting base is cambered surface, and optical receiver is arranged as cambered surface array.
Preferably, the arrangement of the optical transmitter and optical receiver is one kind in following two：First, light is sent
Device and optical receiver are unrelated, each independent arrangement；Second is that by an optical transmitter and an optical receiver two-by-two group to rear
It is adjacently positioned, it is ensured that each layout points can be achieved at the same time sending and receiving for visible light signal.
Preferably, the visible light R-T unit further includes the signal processing being connected respectively with optical receiver and optical transmitter
Circuit, the available all visible light signals of system that signal processing circuit receives optical receiver are handled, and to need
The visible light signal to be sent selection optical transmitter is sent.
Preferably, when the signal processing circuit all visible light signals available to system are handled, processing mode
For the wherein most strong available visible light signal of system is selected to communicate or is communicated using diversity reception mode；Letter
Number process circuit is is the system received according to each optical receiver when needing the visible light signal sent to select optical transmitter
The intensity of available visible light signal selects several with one of the available most strong visible light signal corresponding direction of system or periphery
Optical transmitter carries out the transmission of visible light signal.
In order to realize foregoing invention purpose, the present invention also provides a kind of visible light communication terminal, including for sending
The number of the optical transmitter of visible light signal and the optical receiver for receiving visible light signal, the optical receiver and optical transmitter
Amount is respectively two or more；Optical receiver is arranged in different horizontal planes and/or towards different direction, so as to
In system available visible light signal of the reception from all directions；Optical transmitter be also arranged in different horizontal planes and/
Or towards different directions, in order to send visible light signal to all directions.
Preferably, the visible light communication terminal further includes one or more terminal devices；The optical receiver and
Optical transmitter is distributed across the different position of terminal device or is first fully integrated into same mounting base and is made solely respectively
Vertical visible light R-T unit, then will be seen that light R-T unit is connected with terminal device by data-interface again.
Preferably, the arrangement of the optical transmitter and optical receiver on terminal device or mounting base is following two
In one kind：First, optical transmitter and optical receiver are unrelated, it is each independent to arrange；Second is that by an optical transmitter and one
Group is adjacently positioned optical receiver to after two-by-two, it is ensured that each layout points can be achieved at the same time reception and the hair of visible light signal
It send.
Preferably, the visible light communication terminal further includes the signal processing being connected respectively with optical receiver and optical transmitter
Circuit, the available all visible light signals of system that signal processing circuit receives optical receiver are handled, and to need
The visible light signal to be sent selection optical transmitter is sent.
Preferably, when the signal processing circuit all visible light signals available to system are handled, processing mode
For the wherein most strong available visible light signal of system is selected to communicate or is communicated using diversity reception mode；Letter
Number process circuit is is the system received according to each optical receiver when needing the visible light signal sent to select optical transmitter
The intensity of available visible light signal selects several with one of the available most strong visible light signal corresponding direction of system or periphery
Optical transmitter carries out the transmission of visible light signal.
In order to realize foregoing invention purpose, the present invention also provides a kind of visible light communication system, including at least one
Visible light communication base station and at least one visible light communication terminal, it is seen that optical communication base station and visible light communication terminal pass through visible
Optical signal communicates；Each visible light communication base station and each visible light communication terminal are equipped with to send visible light signal
Optical transmitter and optical receiver for receiving visible light signal；The visible light communication terminal is described in any of the above-described paragraph
Visible light communication terminal.
Compared with prior art, visible light communication terminal of the present invention or its visible light R-T unit are provided with multiple light and send
Device and multiple optical receivers, therefore the visible light signal from multiple directions can be received, can also be sent to multiple directions can
Optical signal is seen, so as to solve the problems, such as that visible light communication directionality is poor caused by visible linear propagation of light, carries
The high visible light communication terminal communication efficiency and quality between each visible light communication base station under various regimes, improves
The reliability of visible light communication has provided better usage experience to the user.
Description of the drawings
With reference to the accompanying drawings and detailed description, to the visible light R-T unit of the present invention, visible light communication terminal, visible
Optical communication system and its advantage are described in detail.
Fig. 1 is the structure diagram of an embodiment of visible light communication system of the present invention.
Fig. 2 is the structure diagram of an embodiment of the visible light R-T unit of the present invention.
Specific embodiment
In order to become apparent from the purpose of the present invention, technical solution and its advantageous effects, below in conjunction with attached drawing and tool
Body embodiment, the present invention will be described in further detail.It should be appreciated that the specific embodiment party described in this specification
Formula is not intended to limit the present invention just for the sake of explaining the present invention.
Referring to Fig. 1, visible light communication system of the present invention includes at least one visible light communication base station 20 and at least one
Visible light communication terminal 22, it is seen that optical communication base station 20 and visible light communication terminal 22 are communicated by visible light signal.Often
One visible light communication base station 20 and each visible light communication terminal 22 are equipped with to send the optical transmitter 24 of visible light signal
With for receiving the optical receiver 26 of visible light signal.
The optical receiver 26 of each visible light communication terminal 22 is two or more, and is arranged in different
Horizontal plane and/or towards different directions, in order to receive the available visible light signal of system from all directions.It is similar
Ground, the optical transmitter 24 of each visible light communication terminal 22 is also two or more, and is arranged in different water
Plane and/or towards different directions, in order to send visible light signal to all directions.
The optical transmitter 24 of each visible light communication terminal 22 and the arrangement of optical receiver 26 have following two：When
Make optical transmitter 24 and optical receiver 26 unrelated, each independent arrangement；Second is that an optical transmitter 24 and a light are connect
Receiving device 26, group is adjacently positioned to after two-by-two, it is ensured that each layout points can be achieved at the same time reception and the hair of visible light signal
It send.
Each visible light communication terminal 22 further includes signal processing circuit (not shown), signal processing circuit and place terminal
All optical transmitters 24 and optical receiver 26 connect respectively.For the system that is received to optical receiver 26 it is available it is all can
See that optical signal is handled, and to need the visible light signal sent that suitable optical transmitter 24 is selected to be sent：Processing
During the available visible light signal of the system that receives, the available visible light signal of wherein most strong system can both be selected to be led to
Letter can also use other suitable modes such as diversity reception to communicate；When selecting optical transmitter 24, it can both select to own
Optical transmitter 24 is sent simultaneously, it is possibility to have some or several optical transmitters 24 is pointedly selected to send, for example, according to each
The intensity for the available visible light signal of system that a optical receiver 26 receives, selection and the available most strong visible light signal of system
One of corresponding direction or the transmission of the several progress of optical transmitters 24 visible light signals in periphery, to ensure the same of communication quality
When, communication power consumption is reduced, extends the standby working time of power supply.
In addition, each visible light communication terminal 22, can also be according to reality in addition to including optical transmitter 24 and optical receiver 26
Border needs, and sets various terminal device (not shown), such as the signal processing terminal (mobile phone, portable computer), modulatedemodulate
Adjust device, interface module etc..In each visible light communication terminal 22, there are many different cloth for optical transmitter 24 and optical receiver 26
Mode is put, such as：It can be with as shown in Figure 1, be distributed across the different position of terminal device, specific installation position and towards can be with
Reasonable Arrangement is carried out according to the physical distribution of terminal device；It can also be as shown in Fig. 2, being first fully integrated into same mounting base 28
Independent visible light R-T unit is made on (such as safety cap or the helmet), light transmitting-receiving dress then will be seen that by data-interface again
It puts and is connected with terminal device.
It should be noted that when as shown in Fig. 2, multiple optical transmitters 24 and multiple optical receivers 26 are integrated into visible ray
When in R-T unit, these optical transmitters 24 and optical receiver 26 are preferably arranged successively according to default angle and interval as array
Structure in order to correspond to the visible light signal of transmission/reception different directions respectively, is received and dispatched so as to form multi-direction visible ray and filled
It puts.In this embodiment, optical transmitter 24 and 26 preferred arrangement of optical receiver are cambered surface array, such as spherical array, spherical calotte
Array, ellipsoid array etc., therefore, the outer surface of mounting base 28 is preferably cambered surface, is most preferably spherical surface, optical transmitter 24 and light
Receiver 26 is sequentially arranged at the outer surface of mounting base 28 according to default angle and interval.Signal processing circuit can be integrated in
Mounting base 28 can also be mounted in the terminal device of visible light communication terminal 22, as long as can realize and optical transmitter 24 and light
The connection respectively of receiver 26.
Compared with prior art, visible light communication terminal 22 of the present invention or its visible light R-T unit are provided with multiple light hairs
Device 24 and multiple optical receivers 26 are sent, therefore the available visible light signal of system from multiple directions can be received, it can also
Visible light signal is sent to multiple directions, so as to efficiently solve the visible light communication direction caused by visible linear propagation of light
Property it is poor the problem of, it is logical between each visible light communication base station 20 under various regimes to improve visible light communication terminal 22
Believe effect and quality, improve the reliability of visible light communication, provided better usage experience to the user.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in specific embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In used some specific terms, but these terms are merely for convenience of description, do not limit the present invention in any way.
Claims (7)
1. a kind of visible light R-T unit for visible light communication, the light including mounting base, for receiving visible light signal
Receiver and the optical transmitter for sending visible light signal, optical receiver and optical transmitter are installed in the outer surface of mounting base
On；It is characterized in that：The quantity of the optical receiver and optical transmitter is respectively two or more, and each comfortable mounting base
On according to default angle and be intervally arranged as array structure, becoming visible light R-T unit can receive from multiple directions
The available visible light signal of system, also can to multiple directions send visible light signal multi-direction visible light R-T unit；
The arrangement of the optical transmitter and optical receiver is：By an optical transmitter and an optical receiver two-by-two group to rear adjacent
Arrangement, it is ensured that each layout points can be achieved at the same time sending and receiving for visible light signal；
The visible light R-T unit further includes the signal processing circuit being connected respectively with optical receiver and optical transmitter, at signal
The available all visible light signals of system that reason circuit receives optical receiver are handled, and visible to need to send
Optical signal selection optical transmitter is sent；When signal processing circuit is needs the visible light signal sent selection optical transmitter,
It is the intensity of the available visible light signal of system received according to each optical receiver, selection is available most strong visible with system
One of optical signal corresponding direction or the transmission of the several optical transmitters progress visible light signals in periphery.
2. visible light R-T unit according to claim 1, it is characterised in that：The outer surface of the mounting base is cambered surface,
Optical receiver is arranged as cambered surface array.
3. visible light R-T unit according to claim 1, it is characterised in that：The signal processing circuit can use system
All visible light signals when being handled, processing mode is selects the wherein most strong available visible light signal of system to be led to
Believe or communicated using diversity reception mode.
4. a kind of visible light communication terminal, including being used to send the optical transmitter of visible light signal and for receiving visible light signal
Optical receiver, it is characterised in that：The quantity of the optical receiver and optical transmitter is respectively two or more；Light-receiving
Device is arranged in different horizontal planes and/or towards different direction, can use in order to receive the system from all directions
Visible light signal；Optical transmitter is also arranged in different horizontal planes and/or towards different direction, in order to each
Direction sends visible light signal；The arrangement of the optical transmitter and optical receiver on terminal device or mounting base is：It will
Group is adjacently positioned to after two-by-two for one optical transmitter and an optical receiver, it is ensured that each layout points can be achieved at the same time can
See sending and receiving for optical signal；
The visible light communication terminal further includes the signal processing circuit being connected respectively with optical receiver and optical transmitter, at signal
The available all visible light signals of system that reason circuit receives optical receiver are handled, and visible to need to send
Optical signal selection optical transmitter is sent；When signal processing circuit is needs the visible light signal sent selection optical transmitter,
It is the intensity of the available visible light signal of system received according to each optical receiver, selection is available most strong visible with system
One of optical signal corresponding direction or the transmission of the several optical transmitters progress visible light signals in periphery.
5. visible light communication terminal according to claim 4, it is characterised in that：The visible light communication terminal further includes one
A or more than one terminal device；The optical receiver and optical transmitter are distributed across the different position of terminal device respectively,
Or be first fully integrated into and independent visible light R-T unit is made in same mounting base, it then again can by data-interface
See that light R-T unit is connected with terminal device.
6. visible light communication terminal according to claim 4, it is characterised in that：The signal processing circuit can use system
All visible light signals when being handled, processing mode is selects the wherein most strong available visible light signal of system to be led to
Believe or communicated using diversity reception mode.
7. a kind of visible light communication system, including at least one visible light communication base station and at least one visible light communication terminal,
Visible light communication base station and visible light communication terminal are communicated by visible light signal；Each visible light communication base station and each
Visible light communication terminal is equipped with to send the optical transmitter of visible light signal and the light-receiving for receiving visible light signal
Device；It is characterized in that：Visible light communication terminal of the visible light communication terminal any one of claim 4 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511028157.6A CN105450302B (en) | 2015-12-31 | 2015-12-31 | It can be seen that light R-T unit, visible light communication terminal and visible light communication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511028157.6A CN105450302B (en) | 2015-12-31 | 2015-12-31 | It can be seen that light R-T unit, visible light communication terminal and visible light communication system |
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| CN105450302A CN105450302A (en) | 2016-03-30 |
| CN105450302B true CN105450302B (en) | 2018-05-29 |
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| CN106533559A (en) * | 2016-12-23 | 2017-03-22 | 南京邮电大学 | Visible light non-planar stereo receiver, visible light receiving terminal and visible light communication system |
| GB201622169D0 (en) * | 2016-12-23 | 2017-02-08 | Univ Court Of The Univ Of Edinburgh The | Receiver and associated mobile communications device |
| US10439714B2 (en) | 2017-04-18 | 2019-10-08 | Purelifi Limited | Mobile device for optical wireless communication |
| CN112152710B (en) * | 2019-06-28 | 2022-03-22 | Oppo广东移动通信有限公司 | Data transmission method and device, electronic equipment and storage medium |
| CN112153358B (en) * | 2019-06-28 | 2023-03-24 | Oppo广东移动通信有限公司 | Projection system, mobile terminal and projector |
| CN112152711B (en) * | 2019-06-28 | 2022-07-26 | Oppo广东移动通信有限公司 | Optical fidelity LiFi communication control method and system for mobile terminal |
| CN112152709B (en) * | 2019-06-28 | 2022-05-20 | Oppo广东移动通信有限公司 | Light fidelity LiFi control method and device of mobile terminal, mobile terminal and medium |
| CN112152716B (en) * | 2019-06-28 | 2022-08-02 | Oppo广东移动通信有限公司 | LiFi communication control method and system for mobile terminal |
| CN112637385A (en) * | 2019-10-08 | 2021-04-09 | Oppo广东移动通信有限公司 | Mobile terminal |
| CN114040040B (en) * | 2021-12-17 | 2023-07-14 | 中国人民解放军96911部队 | External visible light communication expansion module of handheld intelligent mobile terminal |
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