CN202750093U - System for recognizing lamp ID information by LED (light-emitting diode) white light - Google Patents
System for recognizing lamp ID information by LED (light-emitting diode) white light Download PDFInfo
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- CN202750093U CN202750093U CN 201220346723 CN201220346723U CN202750093U CN 202750093 U CN202750093 U CN 202750093U CN 201220346723 CN201220346723 CN 201220346723 CN 201220346723 U CN201220346723 U CN 201220346723U CN 202750093 U CN202750093 U CN 202750093U
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Abstract
The utility model relates to a system for recognizing lamp ID information by LED (Light-emitting diode) white light. The system comprises an emitting part and a receiving part, wherein the emitting part comprises an information unit module for transmitting the lamp ID information to an information coding modulation circuit module; an LED drive power supply module supplies constant current for a current control circuit module; an information coding modulation circuit codes and modulates the information transmitted by the information unit module, and outputs a control signal to the current control circuit module so as to control the size of current output by the current control circuit module; an LED light source converts a current signal output by the current control circuit module into an optical signal; and a photoelectric detection circuit module receives the optical signal of an LED lamp, converts the optical signal into an electric signal, decodes the electric signal through a signal analysis processing and decoding circuit module, and outputs a decoded signal. The structure provided by the utility model can be used for dark environments or the environment with signal bias light, and can be used for light source state monitoring, or mobile lamp locating, and the like.
Description
Technical field
The utility model relates to based on a kind of LED white light communication technology, and system that can identification id relates in particular to the system of a kind of LED white light identification light fixture ID, belongs to houselights Unidirectional light communication technical 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 the many advantages such as capacity usage ratio is high, good stability, fast response time 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 a cost, technical difficulty is large, transmission of angle and distance have larger restriction, noise light to affect transmission bandwidth, and communicates by letter with the modes such as infrared, bluetooth of present comparative maturity and there is no clearly advantage.
The utility model content
Technical problem to be solved in the utility model provides the system of a kind of LED white light identification light fixture ID identity information, overcomes to have no at present to use simultaneously the illumination of LED lamp and defective that can outline.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of system of LED white light identification light fixture ID identity information, comprise radiating portion and receiving unit, and described radiating portion and receiving unit pass through optical signal transmission;
Described radiating portion comprises the information unit module, LED driving power module, information coding modulation circuit module, current control circuit module, led light source, described information unit module, with described light fixture ID identity information information conveyance to described information coding modulation circuit module; Described LED driving power module links to each other with an input port of described current control circuit module, and constant electric current is delivered to described current control circuit module; Described information coding modulation circuit links to each other with another input port of described current control circuit module, after the information that described information unit module is carried is carried out coded modulation, the output control signal flows to described current control circuit module and then controls the size of described current control circuit module output current; The output port of described current control circuit module is connected with described led light source, is used for the brightness of control led light source; Described led light source is transformed into light signal by the current signal that receives described current control circuit module output;
Described receiving unit comprises photodetection circuit module, signal analysis and processing and decoding circuit module; The light signal that described photodetection circuit module receives the LED lamp changes electric signal transmission into to described signal analysis and processing module, described signal analysis and processing module carries out the signal of telecommunication that receives to transfer to described decoding circuit module after filtering and the mould/number conversion, passes through as a result output module output after described decoding circuit module decoding.
The beneficial effects of the utility model are: owing to having 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 utility model can also be done following improvement.
Further, described optical signal transmission process comprises for the optical signal amplification that described led light source is launched, the optical system of filtration, exports after the light signal process of described optical system reception led light source filters, amplifies.
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 optical signal amplification, the filtration of described led light source emission, can to obtain the higher light signal of signal to noise ratio.
Further, the channel of the optical signal transmission of described led light source is the visible illumination channel.
Further, the information coding of described information coding modulation circuit module adopts pulse width modulation mode.
Further, described led light source is the area source of the array plurality of LEDs light source of arranging or integrated form encapsulation.
Further, the control signal of described information coding modulation circuit module output is directly to export by single-chip microcomputer.
Adopt the beneficial effect of above-mentioned further scheme to be: described single-chip microcomputer can be controlled the time of the height that sends frequency and the continuity of height frequency.
Further, described current control circuit module has a switching device and a minute current load to consist of, whether described switching device accesses described current control circuit module by the height control minute current load of the frequency of single-chip microcomputer output, and the circuit of described switching device and described minute current load formation is in parallel with described led light source.
Adopt the beneficial effect of above-mentioned further scheme to be: owing to being provided with a switching device and a minute current load in described current control circuit module, can avoid the LED light and shade to change affects too by force illuminating effect.Certainly, if the control signal time of control LED low-light level is enough short, can not use shunt resistance.
Further, described switching device is triode.
Further, described photodetection circuit module is photomultiplier or photodiode.Such as the need high accuracy, can use CCD or PIN diode.
Further, described radiating portion and/or receiving unit are portable set.
Adopt the beneficial effect of above-mentioned further scheme to be: can realize fast location or the movement of light fixture.
Description of drawings
Fig. 1 is the system configuration schematic diagram of a kind of LED white light identification of the utility model light fixture I D identity information;
In the accompanying drawing, the list of parts of each label representative is as follows:
1, radiating portion, 2, receiving unit, 3, optical system, 101, information coding 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 utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
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, described radiating portion comprises information unit module 105, LED driving power module 102, information coding modulation circuit module 101, current control circuit module 103, led light source 104
Described information unit module 105 is used for described light fixture id information is delivered to described information coding modulation circuit module 101; Described LED driving power module 102 links to each other with an input port of described current control circuit module 103, to the electric current of described current control circuit module 103 delivered constant; Described information coding modulation circuit 101 links to each other with another input port of described current control circuit module 103, (the ID identity information information of light fixture also can be made as digital coding to the information that described 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 described current control circuit module 103 and then controls the size of described current control circuit module 103 output currents by single-chip microcomputer; The output port of described current control circuit module is connected with described led light source, is used for the brightness of control led light source; Described led light source 104 is used for being transformed into light signal by the current signal of received current control circuit module 103 outputs, the area source that the plurality of LEDs light source that described led light source 104 is arranged for array or integrated form encapsulate;
Digital code information through the information after the information coding modulation circuit module coded modulation or directly setting all is compiled into the defeated waveform digital signal of binary system as the size of control signal and then control electric current, like this, corresponding binary control signal, therefore the parameter of led light source only has two states, from light intensity, only have normal brightness and brighter (or not working) two states, because LED has the characteristics of fast response time, thus state duration and signal controlling time be consistent.The signal that is optical parameter also is digital signal.
The optical signal transmission process comprises for the optical signal amplification that described led light source is launched, the optical system 3 of filtration, exports after the light signal process of described optical system 3 reception led light sources 104 filters, amplifies; Described receiving unit 2 comprises photodetection circuit module 202, signal analysis and processing and decoding circuit module 201; The light signal that described photodetection circuit module 202 receives the LED lamp changes electric signal transmission into to described signal analysis and processing module 201, described signal analysis and processing module 201 carries out the signal of telecommunication that receives to transfer to described decoding circuit module 204 after filtering and the mould/number conversion, by as a result output module 203 outputs, described as a result output module 203 is charactron or display screen or other formal intuition output devices after described decoding circuit module 204 decodings.Described receiving unit 2 is portable set, is convenient to detect.
Described photodetection circuit module 202 is photomultiplier or photodiode; The channel of the optical signal transmission of described led light source 104 is the visible illumination channel.
The information coding of described information coding modulation circuit module 101 adopts pulse width modulation mode.
Described current control circuit module 103 has a switching device and a minute current load to consist of, whether described switching device accesses described current control circuit module by the height control minute current load of the frequency of single-chip microcomputer output, the circuit of described switching device and described minute current load formation is in parallel with described led light source, and described switching device is triode.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
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, described radiating portion and receiving unit pass through optical signal transmission;
Described radiating portion comprises the information unit module, LED driving power module, information coding modulation circuit module, current control circuit module, led light source,
Described information unit module, with described light fixture ID identity information information conveyance to described information coding modulation circuit module;
Described LED driving power module links to each other with an input port of described current control circuit module, and constant electric current is delivered to described current control circuit module;
Described information coding modulation circuit module links to each other with another input port of described current control circuit module, after the information that described information unit module is carried is carried out coded modulation, the output control signal flows to described current control circuit module and then controls the size of described current control circuit module output current;
The output port of described current control circuit module is connected with described led light source, is used for the brightness of control led light source;
Described led light source is transformed into light signal by the current signal that receives described current control circuit module output;
Described receiving unit comprises photodetection circuit module, signal analysis and processing and decoding circuit module;
The light signal that described photodetection circuit module receives the LED lamp changes electric signal transmission into to described signal analysis and processing module;
Described signal analysis and processing module carries out the signal of telecommunication that receives to transfer to described decoding circuit module after filtering and the mould/number conversion, passes through as a result output module output after described decoding circuit module decoding.
2. the system of a kind of LED white light identification light fixture ID identity information according to claim 1, it is characterized in that, described optical signal transmission process comprises for the optical signal amplification that described led light source is launched, the optical system of filtration, exports after the light signal process of described optical system reception led light source filters, amplifies.
3. the system of a kind of LED white light identification light fixture ID identity information according to claim 1 is characterized in that, the channel of the optical signal transmission of described led light source is the visible illumination channel.
4. the system of a kind of LED white light identification light fixture ID identity information according to claim 1 is characterized in that, the information coding of described information coding modulation circuit module adopts pulse width modulation mode.
5. the system of a kind of LED white light identification light fixture ID identity information according to claim 1 is characterized in that, described led light source is the array plurality of LEDs light source of arranging or the area source of integrated form encapsulation.
6. according to claim 1 to the system of 5 each described a kind of LED white light identification light fixture ID identity informations, it is characterized in that, the control signal of described information coding modulation circuit module output is directly to export by single-chip microcomputer.
7. the system of described a kind of LED white light identification light fixture ID identity information according to claim 6, it is characterized in that, described current control circuit module has a switching device and a minute current load to consist of, whether described switching device accesses described current control circuit module by the height control minute current load of the frequency of single-chip microcomputer output, and the circuit of described switching device and described minute current load formation is in parallel with described led light source.
8. the system of described a kind of LED white light identification light fixture ID identity information according to claim 7 is characterized in that, described switching device is triode.
9. the system of described a kind of LED white light identification light fixture ID identity information according to claim 7 is characterized in that, described photodetection circuit module is photomultiplier or photodiode.
10. the system of described a kind of LED white light identification light fixture ID identity information according to claim 7 is characterized in that, described radiating portion and/or receiving unit are portable set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346723 CN202750093U (en) | 2012-07-17 | 2012-07-17 | System for recognizing lamp ID information by LED (light-emitting diode) white light |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220346723 CN202750093U (en) | 2012-07-17 | 2012-07-17 | System for recognizing lamp ID information by LED (light-emitting diode) white light |
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| CN202750093U true CN202750093U (en) | 2013-02-20 |
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| CN 201220346723 Expired - Fee Related CN202750093U (en) | 2012-07-17 | 2012-07-17 | System for recognizing lamp ID information by LED (light-emitting diode) white light |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714601A (en) * | 2013-12-18 | 2014-04-09 | 清华大学 | Identity recognition system with visible light communication technology |
| CN104125015A (en) * | 2014-07-31 | 2014-10-29 | 山西大同大学 | Underground people positioning method based on visible light communication technology |
| CN104966038A (en) * | 2015-07-25 | 2015-10-07 | 河北中秦电子科技有限公司 | Photoelectric identity recognition system |
| CN104993874A (en) * | 2015-08-10 | 2015-10-21 | 中国人民解放军信息工程大学 | Visible light communication tunnel lamp used in mine pits |
| CN106304511A (en) * | 2016-10-30 | 2017-01-04 | 北京申安投资集团有限公司 | A kind of control method of spontaneous LED lamp information |
| CN106465521A (en) * | 2016-08-29 | 2017-02-22 | 深圳市窗科技有限责任公司 | Lamp control method and system, illumination control device, and server |
| CN107078800A (en) * | 2014-11-25 | 2017-08-18 | 高通股份有限公司 | Method and apparatus for transmitting safe VLC identifiers |
-
2012
- 2012-07-17 CN CN 201220346723 patent/CN202750093U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103714601A (en) * | 2013-12-18 | 2014-04-09 | 清华大学 | Identity recognition system with visible light communication technology |
| CN104125015A (en) * | 2014-07-31 | 2014-10-29 | 山西大同大学 | Underground people positioning method based on visible light communication technology |
| CN107078800A (en) * | 2014-11-25 | 2017-08-18 | 高通股份有限公司 | Method and apparatus for transmitting safe VLC identifiers |
| CN104966038A (en) * | 2015-07-25 | 2015-10-07 | 河北中秦电子科技有限公司 | Photoelectric identity recognition system |
| CN104993874A (en) * | 2015-08-10 | 2015-10-21 | 中国人民解放军信息工程大学 | Visible light communication tunnel lamp used in mine pits |
| CN106465521A (en) * | 2016-08-29 | 2017-02-22 | 深圳市窗科技有限责任公司 | Lamp control method and system, illumination control device, and server |
| CN106465521B (en) * | 2016-08-29 | 2019-02-22 | 深圳市一窗科技有限责任公司 | A kind of method for controlling lamp and system, illumination control apparatus, server |
| CN106304511A (en) * | 2016-10-30 | 2017-01-04 | 北京申安投资集团有限公司 | A kind of control method of spontaneous LED lamp information |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20150717 |
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| EXPY | Termination of patent right or utility model |