CN202918295U - Single-channel ultraviolet (uv) light communication system - Google Patents
Single-channel ultraviolet (uv) light communication system Download PDFInfo
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- CN202918295U CN202918295U CN 201220523030 CN201220523030U CN202918295U CN 202918295 U CN202918295 U CN 202918295U CN 201220523030 CN201220523030 CN 201220523030 CN 201220523030 U CN201220523030 U CN 201220523030U CN 202918295 U CN202918295 U CN 202918295U
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Abstract
The utility model discloses a single-channel uv light communication system, comprising a modulation circuit, an LED (Light-Emitting Diode) uv light source, an optical filter, a photomultiplier, a demodulation circuit and an amplification circuit. A signal in the input end of the demodulation circuit is an input signal; the output end of the demodulation circuit is connected with the input end of the LED uv light source; a light signal of the LED uv light source transmitted via an atmospheric channel is imported into a light-entering end of the optical filter; the photomultiplier is placed between a light-extraction end of the optical filter and a light-entering end of the demodulation circuit; the output end of the demodulation circuit is connected with the input end of the amplification circuit; and a signal in the output end of the amplification circuit is an output signal. The single-channel uv light communication system employs single-channel optical path communication, which is simple in structure and convenient for operation; and employs the photomultiplier to strengthen signals, which improves the anti-interference capability, improves the working efficiency and quality of a client, and is convenient to popularize.
Description
Technical field
The utility model relates to a kind of Ultraviolet Communication system, relates in particular to a kind of single channel Ultraviolet Communication system.
Background technology
Ultraviolet wavelength is the shortest part of spectrum medium wavelength between 10-400nm, mainly by solar radiation out, claims again ultraviolet ray, and the ultraviolet light transmission performance is closely related than the quality of atmosphere in the scope with biography, such as the O in the atmosphere
3The concentration at concentration, scattering seat, size, uniformity, physical dimension etc.The circulation way of ultraviolet light although decay is serious in the transmission course, can be walked around certain barrier take scattering as main, and these 2 have determined to entangle outer optical communication system and can realize round-the-clock non line of sight communication.
The multiple channel communication systems that formed by a plurality of LED ultraviolet sources that adopt of existing Ultraviolet Communication system more, its complex structure, with high costs, be difficult to popularize.Also there is part to adopt the single channel communication, but because its loss of optical signal is serious, so communication quality is difficult to be guaranteed.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure and reliable and stable single channel Ultraviolet Communication system with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Single channel Ultraviolet Communication described in the utility model system comprises modulation circuit, the LED ultraviolet source, filter, photomultiplier, demodulator circuit and amplifying circuit, the input end signal of described modulation circuit is input signal, the output of described modulation circuit is connected with the input of described LED ultraviolet source, the light inputting end of described filter imports the light signal through the described LED ultraviolet source of plasmas channel transmission, described photomultiplier places between the light inputting end of the bright dipping end of described filter and described demodulator circuit, the output of described demodulator circuit is connected with the input of described amplifying circuit, and the output end signal of described amplifying circuit is output signal.
Particularly, the model of described LED ultraviolet source is UV365-375; Described filter is the bandpass filter of 270-360nm.
The beneficial effects of the utility model are:
The utility model adopts the communication of single channel light path, and is simple in structure, easy to operate, adopts photomultiplier to strengthen signal, improved antijamming capability, improved client's operating efficiency and quality, is convenient to popularize.
Description of drawings
Fig. 1 is single channel Ultraviolet Communication system of systems structured flowchart described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, single channel Ultraviolet Communication described in the utility model system comprises modulation circuit, the LED ultraviolet source, filter, photomultiplier, demodulator circuit and amplifying circuit, the input end signal of modulation circuit is input signal, the output of modulation circuit is connected with the input of LED ultraviolet source, the light inputting end of filter imports the light signal through the LED ultraviolet source of plasmas channel transmission, photomultiplier places between the light inputting end of the bright dipping end of described filter and demodulator circuit, the output of demodulator circuit is connected with the input of amplifying circuit, and the output end signal of amplifying circuit is output signal.The model of above-mentioned LED ultraviolet source is UV365-375, and filter is the bandpass filter of 270-360nm.
Input signal is the initialize signal of the transmitting terminal of wireless telecommunications, at first encodes through overmodulated circuit, then is modulated to the LED ultraviolet source and carries out the electric light conversion, and the light signal of its output transmits in plasmas channel.
Because the light signal that the LED ultraviolet source sends is through Multiple Scattering and the absorption of plasmas channel, signal can be very faint when arriving the filter of receiving terminal, at first after obtaining purifying by filter, to carry out the reinforcement of light signal, optional 8212 types of photomultiplier through photomultiplier.In order to make waveform undistorted in transmission, follow-up loop should obstruct with the characteristic of cable and be complementary.Photomultiplier is decoded by demodulator circuit after the light signal that receives is converted into the signal of telecommunication, carries out the signal of telecommunication through amplifying circuit again and amplifies, and obtains at last output signal, and this output signal is the final signal of the receiving terminal of wireless telecommunications.
Claims (3)
1. single channel Ultraviolet Communication system, it is characterized in that: comprise for modulation circuit, the LED ultraviolet source, filter, photomultiplier, demodulator circuit and amplifying circuit, the input end signal of described modulation circuit is input signal, the output of described modulation circuit is connected with the input of described LED ultraviolet source, the light inputting end of described filter imports the light signal through the described LED ultraviolet source of plasmas channel transmission, described photomultiplier places between the light inputting end of the bright dipping end of described filter and described demodulator circuit, the output of described demodulator circuit is connected with the input of described amplifying circuit, and the output end signal of described amplifying circuit is output signal.
2. single channel Ultraviolet Communication according to claim 1 system, it is characterized in that: the model of described LED ultraviolet source is UV365-375.
3. single channel Ultraviolet Communication according to claim 1 system, it is characterized in that: described filter is the bandpass filter of 270-360nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523030 CN202918295U (en) | 2012-10-14 | 2012-10-14 | Single-channel ultraviolet (uv) light communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523030 CN202918295U (en) | 2012-10-14 | 2012-10-14 | Single-channel ultraviolet (uv) light communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202918295U true CN202918295U (en) | 2013-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220523030 Expired - Fee Related CN202918295U (en) | 2012-10-14 | 2012-10-14 | Single-channel ultraviolet (uv) light communication system |
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| CN (1) | CN202918295U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595483A (en) * | 2013-11-20 | 2014-02-19 | 中国电子科技集团公司第四十一研究所 | Multiband modulation light source based on ultraviolet LED |
| CN105553550A (en) * | 2015-12-31 | 2016-05-04 | 南京理工大学 | Optical wireless communication device and method applied to turbid media |
| CN108988942A (en) * | 2018-08-23 | 2018-12-11 | 西安蜂语信息科技有限公司 | The communication means and device of lighting apparatus |
-
2012
- 2012-10-14 CN CN 201220523030 patent/CN202918295U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595483A (en) * | 2013-11-20 | 2014-02-19 | 中国电子科技集团公司第四十一研究所 | Multiband modulation light source based on ultraviolet LED |
| CN103595483B (en) * | 2013-11-20 | 2016-11-23 | 中国电子科技集团公司第四十一研究所 | A kind of Multiband modulation light source based on ultraviolet LED |
| CN105553550A (en) * | 2015-12-31 | 2016-05-04 | 南京理工大学 | Optical wireless communication device and method applied to turbid media |
| CN108988942A (en) * | 2018-08-23 | 2018-12-11 | 西安蜂语信息科技有限公司 | The communication means and device of lighting apparatus |
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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: 20130501 Termination date: 20131014 |