CN202663409U - Submarine light emitting diode (LED) communication system based on universal serial bus (USB) interface - Google Patents
Submarine light emitting diode (LED) communication system based on universal serial bus (USB) interface Download PDFInfo
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- CN202663409U CN202663409U CN 201220307442 CN201220307442U CN202663409U CN 202663409 U CN202663409 U CN 202663409U CN 201220307442 CN201220307442 CN 201220307442 CN 201220307442 U CN201220307442 U CN 201220307442U CN 202663409 U CN202663409 U CN 202663409U
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Abstract
The utility model discloses a submarine light emitting diode (LED) communication system based on a universal serial bus (USB) interface. The submarine LED communication system based on the USB interface comprises an external communication device, the USB interface, an impulse coding circuit, an LED drive circuit, an LED component, a photoelectric detector, a signal amplifying circuit and an impulse decoding circuit. The submarine LED communication system based on the USB interface is capable of achieving high-speed communication under water and strong in capacity of resisting disturbance.
Description
Technical field
The utility model relates to a kind of USB interface-based communication system of LED under water.
Background technology
The wireless technology develop rapidly, wireless network is used day by day universal, ubiquitous, high-quality radio communication that people are desirable to provide, and growing to the demand of high bandwidth support, quality of service guarantee.Compare with wire access technology, wireless access has deployment speed soon, does not need the advantage that cable and optical cable is laid, networking is flexible, market startup is fast, and wireless access plays an important role as a kind of important means of communication always.
Subsurface communication, especially deep-sea, ocean communication are the important topics the communications field in always, and that how can realize under water communicating by letter is unimpeded and free, realization under water tell communication, be instantly important problem.See that light underwater wireless communication system can realize with present underwater sound wave communication system having complementary advantages.At present, visible light underwater wireless communication system can realize the underwater wireless communication of short-distance and medium-distance, its anti-multipath effect capability is strong, transport tape is wide, transmission rate is high, while visible light underwater wireless communication system also has the little good portability of equipment volume, the characteristics such as manufacturing process is simple, power consumption is little, long service life, therefore has broad application prospects in the communication under water.Believe that in future along with the development of technology, the visible light wireless communication system also can be used for the subsurface communication of long distance under water.
The develop rapidly of optical communication and Primary Component thereof, so that visible light communication becomes global study hotspot, and the visible light access technology will become the hot technology of information technology, it need not the demand frequency resource, is not subjected to electromagnetic interference, environmental protection can be used as the WLAN (wireless local area network) of terminal or the access technology of Wireless Personal Network.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly can realize under water high-speed communication, the USB interface-based communication system of LED under water that antijamming capability is strong.
The utility model is for solving the problems of the technologies described above by the following technical solutions: the utility model has designed a kind of USB interface-based communication system of LED under water, comprise external communication device, USB interface, pulse moder, led drive circuit, LED device, photodetector, signal amplification circuit and pulse decoding circuit, wherein:
The output of described USB interface connects the input of pulse moder, and USB interface receives the baseband signal of external communication device, and with described base band signal transmission to pulse moder;
The output of described pulse moder connects the input of led drive circuit, and pulse moder carries out pulse code with baseband signal to be processed, and is converted to the signal of telecommunication, and transfers to led drive circuit;
The output of described led drive circuit connects the input of LED device, and led drive circuit carries out bias treatment with above-said current signal, produces coupled electrical signal, and described coupled electrical signal is transferred to the LED device, and the driving LED device is luminous;
Described LED device is used for converting coupled electrical signal to light signal, the mode by wireless transmission with described optical signal transmission to photodetector;
The output of described photodetector connects the input of signal amplification circuit, and photodetector receives above-mentioned light signal, and transfers to signal amplification circuit after described light signal is converted to the signal of telecommunication;
The output of described signal amplification circuit connects the input of pulse decoding circuit, and signal amplification circuit carries out power amplification with above-said current signal, and with the electric signal transmission after the power amplification to the pulse decoding circuit;
The output of described pulse decoding circuit connects the input of external communication device, and the signal of telecommunication of pulse decoding circuit after with above-mentioned power amplification transfers baseband signal to, transfers to external communication device by USB interface.
As a kind of optimizing structure of the present utility model: described LED device is selected white light LED part or blue-ray LED device.
The utility model adopts above technical scheme compared with prior art, has following technique effect:
The designed USB interface-based communication system of LED under water of the utility model can realize underwater high-speed communication, and antijamming capability is strong.
Description of drawings
Fig. 1 is the structured flowchart of the designed USB interface-based communication system of LED under water of the utility model.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described in further detail:
As shown in Figure 1, the utility model has designed a kind of USB interface-based communication system of LED under water, comprise external communication device, USB interface, pulse moder, led drive circuit, LED device, photodetector, signal amplification circuit and pulse decoding circuit, wherein:
The output of described USB interface connects the input of pulse moder, and USB interface receives the baseband signal of external communication device, and with described base band signal transmission to pulse moder;
The output of described pulse moder connects the input of led drive circuit, and pulse moder carries out pulse code with baseband signal to be processed, and is converted to the signal of telecommunication, and transfers to led drive circuit;
The output of described led drive circuit connects the input of LED device, and led drive circuit carries out bias treatment with above-said current signal, produces coupled electrical signal, and described coupled electrical signal is transferred to the LED device, and the driving LED device is luminous;
Described LED device is used for converting coupled electrical signal to light signal, the mode by wireless transmission with described optical signal transmission to photodetector;
The output of described photodetector connects the input of signal amplification circuit, and photodetector receives above-mentioned light signal, and transfers to signal amplification circuit after described light signal is converted to the signal of telecommunication;
The output of described signal amplification circuit connects the input of pulse decoding circuit, and signal amplification circuit carries out power amplification with above-said current signal, and with the electric signal transmission after the power amplification to the pulse decoding circuit;
The output of described pulse decoding circuit connects the input of external communication device, and the signal of telecommunication of pulse decoding circuit after with above-mentioned power amplification transfers baseband signal to, transfers to external communication device by USB interface.
As a kind of optimizing structure of the present utility model: described LED device is selected white light LED part or blue-ray LED device.
In specific embodiment, the described USB interface-based communication system of LED under water is arranged in the water-tight device, also can be fixed under water, as fixing permanent communication equipment.
Claims (2)
1. USB interface-based communication system of LED under water is characterized in that: comprise external communication device, USB interface, pulse moder, led drive circuit, LED device, photodetector, signal amplification circuit and pulse decoding circuit, wherein:
The output of described USB interface connects the input of pulse moder, and USB interface receives the baseband signal of external communication device, and with described base band signal transmission to pulse moder;
The output of described pulse moder connects the input of led drive circuit, and pulse moder carries out pulse code with baseband signal to be processed, and is converted to the signal of telecommunication, and transfers to led drive circuit;
The output of described led drive circuit connects the input of LED device, and led drive circuit carries out bias treatment with above-said current signal, produces coupled electrical signal, and described coupled electrical signal is transferred to the LED device, and the driving LED device is luminous;
Described LED device is used for converting coupled electrical signal to light signal, the mode by wireless transmission with described optical signal transmission to photodetector;
The output of described photodetector connects the input of signal amplification circuit, and photodetector receives above-mentioned light signal, and transfers to signal amplification circuit after described light signal is converted to the signal of telecommunication;
The output of described signal amplification circuit connects the input of pulse decoding circuit, and signal amplification circuit carries out power amplification with above-said current signal, and with the electric signal transmission after the power amplification to the pulse decoding circuit;
The output of described pulse decoding circuit connects the input of external communication device, and the signal of telecommunication of pulse decoding circuit after with above-mentioned power amplification transfers baseband signal to, transfers to external communication device by USB interface.
2. the USB interface-based communication system of LED under water according to claim 1, it is characterized in that: described LED device is selected white light LED part or blue-ray LED device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307442 CN202663409U (en) | 2012-06-28 | 2012-06-28 | Submarine light emitting diode (LED) communication system based on universal serial bus (USB) interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220307442 CN202663409U (en) | 2012-06-28 | 2012-06-28 | Submarine light emitting diode (LED) communication system based on universal serial bus (USB) interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202663409U true CN202663409U (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220307442 Expired - Fee Related CN202663409U (en) | 2012-06-28 | 2012-06-28 | Submarine light emitting diode (LED) communication system based on universal serial bus (USB) interface |
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| CN (1) | CN202663409U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119654A (en) * | 2015-08-26 | 2015-12-02 | 南京邮电大学 | Blue light underwater sensing system based on visible light communication |
| CN105790850A (en) * | 2016-04-15 | 2016-07-20 | 南京大学 | Underwater green laser communication system |
| CN109327271A (en) * | 2018-11-23 | 2019-02-12 | 西安电子科技大学 | Method is determined based on the undersea optical communications system ergodic capacity of partially coherent light |
-
2012
- 2012-06-28 CN CN 201220307442 patent/CN202663409U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119654A (en) * | 2015-08-26 | 2015-12-02 | 南京邮电大学 | Blue light underwater sensing system based on visible light communication |
| CN105790850A (en) * | 2016-04-15 | 2016-07-20 | 南京大学 | Underwater green laser communication system |
| CN109327271A (en) * | 2018-11-23 | 2019-02-12 | 西安电子科技大学 | Method is determined based on the undersea optical communications system ergodic capacity of partially coherent light |
| CN109327271B (en) * | 2018-11-23 | 2021-02-02 | 西安电子科技大学 | Method for determining average channel capacity of underwater optical communication system based on partially coherent light |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20130628 |