CN102780528A - System for identifying ID (identity) information of lamp by white light of LED (light-emitting diode) - Google Patents
System for identifying ID (identity) information of lamp by white light of LED (light-emitting diode) Download PDFInfo
- Publication number
- CN102780528A CN102780528A CN2012102470271A CN201210247027A CN102780528A CN 102780528 A CN102780528 A CN 102780528A CN 2012102470271 A CN2012102470271 A CN 2012102470271A CN 201210247027 A CN201210247027 A CN 201210247027A CN 102780528 A CN102780528 A CN 102780528A
- Authority
- CN
- China
- Prior art keywords
- circuit module
- led
- information
- signal
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Optical Communication System (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to a system for identifying ID (identity) information of a lamp by white light of an LED (light-emitting diode). The system comprises a transmitting part and a receiving part, wherein the transmitting part comprises an information unit module which is used for transmitting the ID information of the lamp to an information encoding and modulation circuit module; an LED driving power supply module is used for transmitting constant current to a current control circuit module; the information encoding and modulation circuit is used for performing numbering and modulation on the information transmitted by the information unit module, then outputting a control signal and transmitting to the current control circuit module for further control of the output current of the current control circuit module; the LED power supply is used for receiving a current signal output by the current control circuit module and converting the current signal to an optical signal; and a photoelectric detection circuit module is used for receiving the optical signal of the LED lamp and converting the optical signal to an electric signal, and the electric signal is output after signal analysis processing and decoding by a decoding circuit module. The structure can be applied in a dark environment or an environment with single background light, and can be used for monitoring the state of a light source or positioning a mobile lamp and the like.
Description
Technical field
The present invention relates to based on a kind of LED white light communication technology, system that can identification id relates in particular to the system of a kind of LED white light identification light fixture ID, belongs to the unidirectional optical communication technique of houselights field.
Background technology
Current LED light fixture development is swift and violent, all is tending towards ripe in illumination every field technology.The LED lighting is compared than other thermoluminescence light sources or glow discharge spot lamp, and many advantages such as capacity usage ratio height, good stability, response speed be fast are just arranged.
For the visible light communication transmission technology; State-of-the art can realize utilizing houselights to get online without being tethered to a cable under indoor environment; It is higher that but this technology has cost; Technical difficulty is big, transmission of angle and distance have than limitations, noise light influences transmission bandwidth, and communicates by letter with the modes such as infrared, bluetooth of present comparative maturity and not have advantage clearly.
Summary of the invention
Technical problem to be solved by this invention provides the system of a kind of LED white light identification light fixture ID identity information, overcomes not see at present and use illumination of LED lamp and defective that can outline simultaneously.
The technical scheme that the present invention solves the problems of the technologies described above is following: a kind of system of LED white light identification light fixture ID identity information, comprise radiating portion and receiving unit, and said radiating portion and receiving unit pass through optical signal transmission;
Said radiating portion comprises the information unit module; Led drive circuit module, information coded modulation circuit module, current control circuit module, led light source; Said information unit module is with said light fixture ID identity information information conveyance to said information coded modulation circuit module; Said LED driving power module links to each other with an input port of said current control circuit module, and constant electric current is delivered to said current control circuit module; Said information coded modulation circuit links to each other with another input port of said current control circuit module; After the information that said information unit module is carried is carried out coded modulation; The output control signal flows to said current control circuit module and then controls the size of said current control circuit module output current; The output port of said current control circuit module is connected with said led light source, is used to control the brightness of led light source; Said led light source is transformed into light signal through the current signal that receives said current control circuit module output;
Said receiving unit comprises photodetection circuit module, signal analysis and processing and decoding circuit module; The light signal of said photodetection circuit module reception LED lamp changes the signal of telecommunication into and transfers to said signal analysis and processing module; Said signal analysis and processing module carries out the signal of telecommunication that receives to transfer to said decoding circuit module after filtering and the mould/number conversion, after said decoding circuit module decoding, passes through output module output as a result.
The invention has the beneficial effects as follows: owing to adopted led light source communication not only can realize illumination functions but also can realize communication function; And corresponding speed is fast; Can be applicable to can be used for the purposes such as location of light source condition monitoring or movable lamps in the single environment of dark situation or bias light.
On the basis of technique scheme, the present invention can also do following improvement.
Further, said optical signal transmission process comprises the light signal amplification that is used for said led light source emission, the optical system of filtering, and said optical system receives light signal output after filter light, amplification of led light source.
Adopt the beneficial effect of above-mentioned further scheme to be: between led light source and photodetection circuit module, to be provided with optical system, can to amplify the light signal of said led light source emission, filter, can obtain the higher light signal of signal to noise ratio.
Further, the channel of the optical signal transmission of said led light source is the visible illumination channel.
Further, the information of said information coded modulation circuit module coding adopts pulse width modulation mode.
Further, said led light source is the area source of array plurality of LEDs light source of arranging or integrated form encapsulation.
Further, the control signal of said information coded modulation circuit module output is directly to export through single-chip microcomputer.
Adopt the beneficial effect of above-mentioned further scheme to be: said single-chip microcomputer can be controlled the time of the height that sends frequency and the continuity of height frequency.
Further; Said current control circuit module has a switching device and a branch current load to constitute; Said switching device divides current load whether to insert said current control circuit module through the height control of the frequency of single-chip microcomputer output, and the circuit of said switching device and said minute current load formation is parallelly connected with said led light source.
Adopt the beneficial effect of above-mentioned further scheme to be: owing in said current control circuit module, be provided with a switching device and a branch current load, can avoid the LED light and shade to change influences illuminating effect too by force.Certainly, if the control signal time of control LED low-light level is enough short, can not use shunt resistance.
Further, said switching device is a triode.
Further, said photodetection circuit module is photomultiplier or photodiode.Like the need high accuracy, can use CCD or PIN diode.
Further, said radiating portion and/or receiving unit are portable set.
Adopt the beneficial effect of above-mentioned further scheme to be: location that can the Rapid Realization light fixture or move.
Description of drawings
Fig. 1 is the system configuration sketch map of a kind of LED white light identification of the present invention light fixture ID identity information;
In the accompanying drawing, the list of parts of each label representative is following:
1, radiating portion, 2, receiving unit, 3, optical system, 101, information coded modulation circuit module; 102, LED driving power module, 103, the current control circuit module, 104, led light source; 105, information unit module, 201, the information analysis processing module, 202, the photodetection circuit module; 203, output module as a result, 204, the decoding circuit module.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and characteristic are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
As shown in Figure 1; A kind of system of LED white light identification light fixture ID identity information; Comprise radiating portion 1 and receiving unit 2; Said radiating portion comprises information unit module 105, led drive circuit module 102, information coded modulation circuit module 101, current control circuit module 103, led light source 104
Said information unit module 105 is used for said light fixture id information is delivered to said information coded modulation circuit module 101; Said LED driving power module 102 links to each other with an input port of said current control circuit module 103, to the electric current of said current control circuit module 103 delivered constant; Said information coded modulation circuit 101 links to each other with another input port of said current control circuit module 103; (the ID identity information information of light fixture also can be made as digital coding to the information that said information unit module 105 is carried in the information unit module; Be compiled into the defeated waveform digital signal of binary system; And as control signal) carry out coded modulation after; The output control signal directly flows to said current control circuit module 103 and then controls the size of said current control circuit module 103 output currents through single-chip microcomputer; The output port of said current control circuit module is connected with said led light source, is used to control the brightness of led light source; Said led light source 104 is used for being transformed into light signal through the current signal of received current control circuit module 103 output, the area source that plurality of LEDs light source that said led light source 104 is arranged for array or integrated form encapsulate;
Digital code information through information after the information coded modulation circuit module coded modulation or directly setting all is compiled into the size of the defeated waveform digital signal of binary system as control signal and then Control current; Like this, corresponding binary control signal, so the parameter of led light source has only two states; From light intensity; Have only normal brightness and brighter (or not working) two states because LED has the fast characteristics of response speed, so state duration and signal controlling time be consistent.The signal that is optical parameter also is a digital signal.
The optical signal transmission process comprises the light signal amplification that is used for said led light source emission, the optical system 3 of filtering, and said optical system 3 receives light signal output after filter light, amplification of led light sources 104; Said receiving unit 2 comprises photodetection circuit module 202, signal analysis and processing and decoding circuit module 201; The light signal that said photodetection circuit module 202 receives the LED lamp changes the signal of telecommunication into and transfers to said signal analysis and processing module 201; Said signal analysis and processing module 201 carries out the signal of telecommunication that receives to transfer to said decoding circuit module 204 after filtering and the mould/number conversion; Through output module 203 outputs as a result, described output module as a result 203 is charactron or display screen or other forms output device directly perceived after said decoding circuit module 204 decodings.Said receiving unit 2 is a portable set, is convenient to detect.
Said photodetection circuit module 202 is photomultiplier or photodiode; The channel of the optical signal transmission of said led light source 104 is the visible illumination channel.
The information coding of said information coded modulation circuit module 101 adopts pulse width modulation mode.
Said current control circuit module 103 has a switching device and a branch current load to constitute; Said switching device divides current load whether to insert said current control circuit module through the height control of the frequency of single-chip microcomputer output; The circuit of said switching device and said minute current load formation is parallelly connected with said led light source, and said switching device is a triode.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the system of a LED white light identification light fixture ID identity information is characterized in that comprise radiating portion and receiving unit, said radiating portion and receiving unit pass through optical signal transmission;
Said radiating portion comprises the information unit module, led drive circuit module, information coded modulation circuit module, current control circuit module, led light source,
Said information unit module is with said light fixture ID identity information information conveyance to said information coded modulation circuit module;
Said LED driving power module links to each other with an input port of said current control circuit module, and constant electric current is delivered to said current control circuit module;
Said information coded modulation circuit module links to each other with another input port of said current control circuit module; After the information that said information unit module is carried is carried out coded modulation; The output control signal flows to said current control circuit module and then controls the size of said current control circuit module output current;
The output port of said current control circuit module is connected with said led light source, is used to control the brightness of led light source;
Said led light source is transformed into light signal through the current signal that receives said current control circuit module output;
Said receiving unit comprises photodetection circuit module, signal analysis and processing and decoding circuit module;
The light signal of said photodetection circuit module reception LED lamp changes the signal of telecommunication into and transfers to said signal analysis and processing module;
Said signal analysis and processing module carries out the signal of telecommunication that receives to transfer to said decoding circuit module after filtering and the mould/number conversion, after said decoding circuit module decoding, passes through output module output as a result.
2. discern the system of light fixture ID identity information according to claim 1 LED white light; It is characterized in that; Said optical signal transmission process comprises the light signal amplification that is used for said led light source emission, the optical system of filtering, and said optical system receives light signal output after filter light, amplification of led light source.
3. according to the system of claim 1 LED white light identification light fixture ID identity information, it is characterized in that the channel of the optical signal transmission of said led light source is the visible illumination channel.
4. according to the system of claim 1 LED white light identification light fixture ID identity information, it is characterized in that the information coding of said information coded modulation circuit module adopts pulse width modulation mode.
5. according to the system of claim 1 LED white light identification light fixture ID identity information, it is characterized in that said led light source is the array plurality of LEDs light source of arranging or the area source of integrated form encapsulation.
6. according to the system of each said a kind of LED white light identification light fixture ID identity information of claim 1 to 5, it is characterized in that the control signal of said information coded modulation circuit module output is directly to export through single-chip microcomputer.
7. discern the system of light fixture ID identity information according to the said a kind of LED white light of claim 6; It is characterized in that; Said current control circuit module has a switching device and a branch current load to constitute; Said switching device divides current load whether to insert said current control circuit module through the height control of the frequency of single-chip microcomputer output, and the circuit of said switching device and said minute current load formation is parallelly connected with said led light source.
8. according to the system of the said a kind of LED white light identification light fixture ID identity information of claim 7, it is characterized in that said switching device is a triode.
9. according to the system of the said a kind of LED white light identification light fixture ID identity information of claim 7, it is characterized in that said photodetection circuit module is photomultiplier or photodiode.
10. according to the system of the said a kind of LED white light identification light fixture ID identity information of claim 7, it is characterized in that said radiating portion and/or receiving unit are portable set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102470271A CN102780528A (en) | 2012-07-17 | 2012-07-17 | System for identifying ID (identity) information of lamp by white light of LED (light-emitting diode) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102470271A CN102780528A (en) | 2012-07-17 | 2012-07-17 | System for identifying ID (identity) information of lamp by white light of LED (light-emitting diode) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102780528A true CN102780528A (en) | 2012-11-14 |
Family
ID=47125300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102470271A Pending CN102780528A (en) | 2012-07-17 | 2012-07-17 | System for identifying ID (identity) information of lamp by white light of LED (light-emitting diode) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102780528A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104363049A (en) * | 2014-11-05 | 2015-02-18 | 太原科技大学 | Identity recognition system and identity recognition method both based on white-light communication |
| CN104567853A (en) * | 2013-10-24 | 2015-04-29 | 张炯 | Position calibration device and method based on LED visible light source |
| CN105259842A (en) * | 2015-11-16 | 2016-01-20 | 中江联合(北京)科技有限公司 | Intelligent terminal for timely and automatically collecting LED digital display data |
| CN105444752A (en) * | 2014-09-02 | 2016-03-30 | 深圳市芯通信息科技有限公司 | Light source brightness-based indoor positioning method, and apparatus and system thereof |
| CN105939175A (en) * | 2016-06-01 | 2016-09-14 | 苏州杰姆斯特机械有限公司 | Submarine CCD optical communication device |
| CN106060994A (en) * | 2016-03-10 | 2016-10-26 | 文成县刀锋科技有限公司 | Lighting control system for visible light communication |
| CN106073439A (en) * | 2016-06-20 | 2016-11-09 | 苏州迈奇杰智能技术有限公司 | A kind of CCD Special Automatic curtain of optic communication partly-exposed basement |
| CN106388538A (en) * | 2016-06-20 | 2017-02-15 | 苏州迈奇杰智能技术有限公司 | Automatic curtain based on LIFI remote control |
| CN109343388A (en) * | 2018-09-30 | 2019-02-15 | 西安理工大学 | Automatic control system for parking position lock and its control method based on car light identification |
| CN113864681A (en) * | 2021-09-23 | 2021-12-31 | 佛山电器照明股份有限公司 | Spliced lamp system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725370A (en) * | 2008-10-14 | 2010-06-09 | 海洋王照明科技股份有限公司 | Underground locating and monitoring system |
| CN201965651U (en) * | 2011-03-08 | 2011-09-07 | 李玉平 | RFID mine personnel locating card |
| CN102434785A (en) * | 2011-08-02 | 2012-05-02 | 盛桂元 | Underground people positioning and bidirectional paging communication method for mine and special mine lamp |
-
2012
- 2012-07-17 CN CN2012102470271A patent/CN102780528A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725370A (en) * | 2008-10-14 | 2010-06-09 | 海洋王照明科技股份有限公司 | Underground locating and monitoring system |
| CN201965651U (en) * | 2011-03-08 | 2011-09-07 | 李玉平 | RFID mine personnel locating card |
| CN102434785A (en) * | 2011-08-02 | 2012-05-02 | 盛桂元 | Underground people positioning and bidirectional paging communication method for mine and special mine lamp |
Non-Patent Citations (1)
| Title |
|---|
| 谭家杰: "室内LED可见光MIMO通信研究", 《中国优秀博士论文数据库》, 15 May 2012 (2012-05-15) * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567853A (en) * | 2013-10-24 | 2015-04-29 | 张炯 | Position calibration device and method based on LED visible light source |
| CN105444752A (en) * | 2014-09-02 | 2016-03-30 | 深圳市芯通信息科技有限公司 | Light source brightness-based indoor positioning method, and apparatus and system thereof |
| CN104363049A (en) * | 2014-11-05 | 2015-02-18 | 太原科技大学 | Identity recognition system and identity recognition method both based on white-light communication |
| CN105259842A (en) * | 2015-11-16 | 2016-01-20 | 中江联合(北京)科技有限公司 | Intelligent terminal for timely and automatically collecting LED digital display data |
| CN106060994A (en) * | 2016-03-10 | 2016-10-26 | 文成县刀锋科技有限公司 | Lighting control system for visible light communication |
| CN105939175A (en) * | 2016-06-01 | 2016-09-14 | 苏州杰姆斯特机械有限公司 | Submarine CCD optical communication device |
| CN106073439A (en) * | 2016-06-20 | 2016-11-09 | 苏州迈奇杰智能技术有限公司 | A kind of CCD Special Automatic curtain of optic communication partly-exposed basement |
| CN106388538A (en) * | 2016-06-20 | 2017-02-15 | 苏州迈奇杰智能技术有限公司 | Automatic curtain based on LIFI remote control |
| CN109343388A (en) * | 2018-09-30 | 2019-02-15 | 西安理工大学 | Automatic control system for parking position lock and its control method based on car light identification |
| CN113864681A (en) * | 2021-09-23 | 2021-12-31 | 佛山电器照明股份有限公司 | Spliced lamp system |
| CN113864681B (en) * | 2021-09-23 | 2023-11-07 | 佛山电器照明股份有限公司 | Spliced lamp system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102780528A (en) | System for identifying ID (identity) information of lamp by white light of LED (light-emitting diode) | |
| CN202750093U (en) | System for recognizing lamp ID information by LED (light-emitting diode) white light | |
| US7650082B2 (en) | Optical communication transmitter, optical communication receiver, optical communication system, and communication apparatus | |
| CN105049118B (en) | Visible light communication method and its visible light communication system based on dual modulation technology | |
| CN102804924A (en) | Illumination System And Method With Improved Snr | |
| Li et al. | Two-way visible light communication and illumination with LEDs | |
| CN103841732A (en) | Indoor visible light communication method simultaneously achieving brightness control and data transmission | |
| US20140214362A1 (en) | Method and system of detecting flickering frequency of ambient light source | |
| CN103491667B (en) | Lighting | |
| CN109462437A (en) | A kind of visible light communication system and implementation method based on space combination modulation | |
| CN104038283A (en) | LED lighting communication system | |
| CN103037592A (en) | Light-emitting diode (LED) street lamp automatic control system and LED street lamp automatic control method | |
| CN104022822A (en) | RGB-type LED-based visible light communication frequency modulation method | |
| CN103840880A (en) | Visible light communication networking structure and method based on NLOS link | |
| CN103021337A (en) | Light-emitting diode (LED) display device with brightness adjusting device | |
| JP2008182446A (en) | Two-way visible-light communication apparatus | |
| Jenq et al. | An AC LED smart lighting system with visible light time-division multiplexing free space optical communication | |
| CN203722637U (en) | LED white light communication adapter system | |
| CN105044625A (en) | LED lamp multi-parameter detection device | |
| Jenq et al. | An AC LED smart lighting system with white light FSO communication | |
| KR101801621B1 (en) | Apparatus for traffic sign using mobile device | |
| CN204272129U (en) | The light signal receiving and transmitting apparatus of integration packaging visible light communication | |
| CN205039821U (en) | Apply to LED visible light communication system of audio signal transmission | |
| CN109981170A (en) | A kind of radio optical communication system and method | |
| CN101855847B (en) | Data transmission with room illuminations having light emitting diodes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121114 |