CN103326785A - Vehicle-mounted optical transmitter and receiver - Google Patents
Vehicle-mounted optical transmitter and receiver Download PDFInfo
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- CN103326785A CN103326785A CN2013102662577A CN201310266257A CN103326785A CN 103326785 A CN103326785 A CN 103326785A CN 2013102662577 A CN2013102662577 A CN 2013102662577A CN 201310266257 A CN201310266257 A CN 201310266257A CN 103326785 A CN103326785 A CN 103326785A
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Abstract
The invention discloses a vehicle-mounted optical transmitter and receiver which comprises an optical transmitter and an optical receiver. The optical transmitter and the optical receiver are connected through optical fibers, the optical transmitter comprises an audio-video transmitting module, a launching FPGA chip and a first photoelectric converter, the launching FPGA chip is connected with the first photoelectric converter, and the audio-video transmitting module is connected with the launching FPGA chip. The optical receiver comprises an audio-video receiving module, a receiving FPGA chip and a second photoelectric converter, the second photoelectric converter is connected with the receiving FPGA chip, and the first photoelectric converter is connected with the second photoelectric converter. A front end carries out digitalization on multiple lines of information stream through the audio-video transmitting module, electric signals are converted into optical signals through the first photoelectric converter under the action of the launching FPGA chip, and the optical signals are transmitted to the audio-video receiving module through the optical fibers. After the optical signals are received, the optical signals are reverted into multiple lines of digital signals, and the digital signals are recovered to analog videos, analog audios and data.
Description
Technical field
The present invention relates to the computer network transmission technology, specifically refer to Vehicle Optical Terminal.
Background technology
Optical transceiver is an optical fiber communication equipment that prolongs transfer of data, and it mainly is by technology such as signal modulation, photoelectric conversions, utilizes light-transfer characteristic to reach the purpose of remote transmission.The general paired use of optical transceiver is divided into optical sender and optical receiver, and optical sender is finished electricity/light conversion, and light signal is launched for Optical Fiber Transmission; Optical receiver mainly is the light signal that receives from optical fiber to be restored be the signal of telecommunication, finishes light/electricity conversion, and the optical transceiver effect is exactly to be used for the remote transmission data.
In military field, the transmission of information is particularly important, because relate to a large amount of national defence data and safe and secret data transfer.In the general transmission system, the modes such as coaxial cable, twisted-pair feeder are adopted in long short-range transmission more, but use the degree of decay of coaxial cable and Double-strand transmission signal large, and the distance that makes it to transmit is short, poor anti jamming capability.At receiving terminal, the image information that receives and data are easy to impaired serious.
Summary of the invention
The present invention solves the problems such as the interior easy distortion of transfer of data of military field by Vehicle Optical Terminal is set, and reaches the purpose that improves the transmission equipment antijamming capability.
Purpose of the present invention reaches by the following technical programs:
The present invention includes optical sender and optical receiver, described optical sender links to each other by optical fiber with optical receiver, described optical sender comprises audio frequency and video transmitter module, emission fpga chip and the first optical-electrical converter, described emission fpga chip links to each other with the first photoelectric conversion module, and the audio frequency and video transmitter module links to each other with the emission fpga chip; Described optical receiver comprises the audio frequency and video receiver module, receives fpga chip and the second optical-electrical converter, and described the second optical-electrical converter links to each other with the reception fpga chip, and the first optical-electrical converter links to each other with the second optical-electrical converter.The video camera of front end is crossed the audio frequency and video transmitter module with video, audio frequency and the data communication device of multichannel and is carried out high-resolution digital, formation high-speed figure stream, then under the effect of emission fpga chip, carry out multi-path digital stream multiplexing, rapidly by the first optical-electrical converter, convert the electrical signal to light signal, be transmitted through the fiber to the audio frequency and video receiver module of optical receiver; The audio frequency and video receiver module receives signal, carries out demultiplexing by receiving fpga chip, reverts back to each railway digital signal, reverts at last analog video, audio frequency and data.The setting of fpga chip is so that the optical transceiver transmission has higher speed and stability.
Further, described audio frequency and video transmitter module comprises camera, Mike, two A/D converters and the first high speed parallel-to-serial converter, camera, Mike link to each other successively with two A/D converters respectively, two A/D converters link to each other with the emission fpga chip respectively, and the first high speed parallel-to-serial converter links to each other with the first optical-electrical converter with fpga chip.Image information or data communication device that the multichannel camera is captured are crossed main amplifier, and image or data are processed, and by A/D converter analog signal conversion are being become digital signal; When the emission fpga chip multi-path digital is flowed multiplexing after, then under the effect of the first high speed parallel-to-serial converter, multi-path digital flow transmission to the first optical-electrical converter, optical-electrical converter the signal of telecommunication is converted to light signal so that Optical Fiber Transmission to optical receiver.
Further, described audio frequency and video receiver module comprises monitor, earphone, two D/A converters, monitor, earphone link to each other with two D/A converters respectively, two D/A converters link to each other with the reception fpga chip, and the second optical-electrical converter links to each other with the reception fpga chip by the second high speed parallel-to-serial converter.
After optical receiver receives signal, convert light signal to the signal of telecommunication by the second optical-electrical converter, the signal of telecommunication is under the effect of the second high speed parallel-to-serial converter, fast transport is to receiving fpga chip to carry out demultiplexing, after reverting back to multi-path digital stream, convert digital signal to analog signal by D/A converter, be sent to terminal display and earphone.
Further, described optical sender also comprises 7 way switch amount input interfaces and 7 way switch amount output interfaces.Remove the forward and reverse video of multichannel, multichannel bi-directional data, also support the synchronous transmission of 7 road forward switching values and No. 7 reverser amounts.
Further, described optical receiver also comprises 7 way switch amount output interfaces and 7 way switch amount input interfaces.7 road direct-reverse switch amounts that optical receiver arranges, 7 road direct-reverse switch amounts with optical sender adapt respectively, guarantee the complete transmission of Large Volume Data, image information.
Further, be provided with third level lightning protection device on the interfaces for external devices on the described transmitter and receiver.During normal operation, the access of third level lightning protection device does not affect the normal transmission of signal, and earth impedance should be large, and the impedance that is connected in the circuit is little; When thunder and lightning attacked communication bus, third level lightning protection device can be brought into play good voltage clamping effect; Suppressing to be no more than in the thunder and lightning attack process of the maximum through-current capacity of lightning protection device, third level lightning protection device attacks thunder and lightning has enough fast response speed, guarantees that electronic equipment is in the safe handling in many thunderstorms area, western part.
Further, as preferably, described optical fiber is polymer optical fiber.Polymer optical fiber is comprised of the transparent polymer sandwich layer of high index of refraction and the transparent polymer covering of low-refraction, have that diameter is thick, pliability good, density is little and in the visible region low-loss, loss when the transmission of data or signal is little, anti-electromagnetic interference can be strong, and making it has extensive utilization in transducer and local area network (LAN).
The present invention compared with prior art, have following advantage and a beneficial effect:
1 optical sender of the present invention comprises audio frequency and video transmitter module, emission fpga chip and the first optical-electrical converter, and described emission fpga chip links to each other with the first photoelectric conversion module, and the audio frequency and video transmitter module links to each other with the emission fpga chip; Described optical receiver comprises the audio frequency and video receiver module, receives fpga chip and the second optical-electrical converter, and described the second optical-electrical converter links to each other with the reception fpga chip, and the audio frequency and video receiver module is connected with the audio frequency and video transmitter module.The setting of fpga chip is so that the optical transceiver transmission has higher speed and stability.
Be provided with third level lightning protection device on the interfaces for external devices on 2 transmitter and receivers of the present invention, when normally moving, the access of third level lightning protection device does not affect the normal transmission of signal, and earth impedance should be large, and the impedance that is connected in the circuit is little; When thunder and lightning attacked communication bus, third level lightning protection device can be brought into play good voltage clamping effect; Suppressing to be no more than in the thunder and lightning attack process of the maximum through-current capacity of lightning protection device, third level lightning protection device attacks thunder and lightning has enough fast response speed, guarantees that electronic equipment is in the safe handling in many thunderstorms area, western part.
Description of drawings
Fig. 1 is circuit block diagram of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1, the present embodiment comprises optical sender and optical receiver, described optical sender links to each other by optical fiber with optical receiver, described optical sender comprises audio frequency and video transmitter module, emission fpga chip and the first optical-electrical converter, described emission fpga chip links to each other with the first photoelectric conversion module, and the audio frequency and video transmitter module links to each other with the emission fpga chip; Described optical receiver comprises the audio frequency and video receiver module, receives fpga chip and the second optical-electrical converter, and described the second optical-electrical converter links to each other with the reception fpga chip, and the first optical-electrical converter links to each other with the second optical-electrical converter.The camera light transmitter of front end is crossed the audio frequency and video transmitter module with video, audio frequency and the data communication device of multichannel first and is carried out high-resolution digital, formation high-speed figure stream, then under the effect of emission fpga chip, carry out multi-path digital stream multiplexing, rapidly by the first optical-electrical converter, convert the electrical signal to light signal, be transmitted through the fiber to the audio frequency and video receiver module of optical receiver; The audio frequency and video module receives signal, carries out demultiplexing by receiving fpga chip, reverts back to each railway digital signal, reverts at last analog video, audio frequency and data.
Embodiment 2
As shown in Figure 1, the present embodiment is on the basis of embodiment 1, described audio frequency and video transmitter module comprises camera, Mike, two A/D converters and the first high speed parallel-to-serial converter, camera, Mike link to each other successively with two A/D converters respectively, two A/D converters link to each other with the emission fpga chip respectively, and the first high speed parallel-to-serial converter links to each other with the first optical-electrical converter with fpga chip.Image information or data communication device that the multichannel camera is captured are crossed main amplifier, and image or data are processed, and by A/D converter analog signal conversion are being become digital signal; When the emission fpga chip multi-path digital is flowed multiplexing after, then under the effect of the first high speed parallel-to-serial converter, multi-path digital flow transmission to the first optical-electrical converter, optical-electrical converter the signal of telecommunication is converted to light signal so that Optical Fiber Transmission to optical receiver;
Described audio frequency and video receiver module comprises monitor, earphone, two D/A converters, monitor, earphone link to each other with two D/A converters respectively, two D/A converters link to each other with the reception fpga chip, and the second optical-electrical converter links to each other with the reception fpga chip by the second high speed parallel-to-serial converter.After optical receiver receives signal, convert light signal to the signal of telecommunication by the second optical-electrical converter, the signal of telecommunication is under the effect of the second high speed parallel-to-serial converter, fast transport is to receiving fpga chip to carry out demultiplexing, after reverting back to multi-path digital stream, convert digital signal to analog signal by D/A converter, be sent to terminal display and earphone.
Embodiment 3
As shown in Figure 1, the present embodiment is on the basis of embodiment 1, and described optical sender also comprises 7 way switch amount input interfaces and 7 way switch amount output interfaces, and described optical receiver comprises 7 way switch amount output interfaces and 7 way switch amount input interfaces.Remove the forward and reverse video of multichannel, multichannel bi-directional data, also support the synchronous transmission of 7 road forward switching values and No. 7 reverser amounts; 7 road direct-reverse switch amounts that optical receiver arranges, 7 road direct-reverse switch amounts with optical sender adapt respectively, guarantee the complete transmission of Large Volume Data, image information; Described optical receiver also comprises 7 way switch amount output interfaces and 7 way switch amount input interfaces.7 road direct-reverse switch amounts that optical receiver arranges, 7 road direct-reverse switch amounts with optical sender adapt respectively, guarantee the complete transmission of Large Volume Data, image information.
Embodiment 4
As shown in Figure 1, the present embodiment is provided with third level lightning protection device on the interfaces for external devices on the described transmitter and receiver on the basis of embodiment 1.During normal operation, the access of third level lightning protection device does not affect the normal transmission of signal, and earth impedance should be large, and the impedance that is connected in the circuit is little; When thunder and lightning attacked communication bus, third level lightning protection device can be brought into play good voltage clamping effect; Suppressing to be no more than in the thunder and lightning attack process of the maximum through-current capacity of lightning protection device, third level lightning protection device attacks thunder and lightning has enough fast response speed, guarantees that electronic equipment is in the safe handling in many thunderstorms area, western part.
Embodiment 5
As shown in Figure 1, the present embodiment is on the basis of embodiment 1, and as preferably, described optical fiber is polymer optical fiber.Polymer optical fiber is comprised of the transparent polymer sandwich layer of high index of refraction and the transparent polymer covering of low-refraction, have that diameter is thick, pliability good, density is little and in the visible region low-loss, loss when the transmission of data or signal is little, anti-electromagnetic interference can be strong, and making it has extensive utilization in transducer and local area network (LAN).
Claims (7)
1. Vehicle Optical Terminal, comprise optical sender and optical receiver, described optical sender links to each other by optical fiber with optical receiver, it is characterized in that: described optical sender comprises audio frequency and video transmitter module, emission fpga chip and the first optical-electrical converter, described emission fpga chip links to each other with the first photoelectric conversion module, and the audio frequency and video transmitter module links to each other with the emission fpga chip; Described optical receiver comprises the audio frequency and video receiver module, receives fpga chip and the second optical-electrical converter, and described the second optical-electrical converter links to each other with the reception fpga chip, and the first optical-electrical converter links to each other with the second optical-electrical converter.
2. Vehicle Optical Terminal according to claim 1, it is characterized in that: described audio frequency and video transmitter module comprises camera, Mike, two A/D converters and the first high speed parallel-to-serial converter, camera, Mike link to each other successively with two A/D converters respectively, two A/D converters link to each other with the emission fpga chip respectively, and the first high speed parallel-to-serial converter links to each other with the first optical-electrical converter with fpga chip.
3. Vehicle Optical Terminal according to claim 1, it is characterized in that: described audio frequency and video receiver module comprises monitor, earphone, two D/A converters, monitor, earphone link to each other with two D/A converters respectively, two D/A converters link to each other with the reception fpga chip, and the second optical-electrical converter links to each other with the reception fpga chip by the second high speed parallel-to-serial converter.
4. Vehicle Optical Terminal according to claim 1 is characterized in that: described optical sender also comprises 7 way switch amount input interfaces and the 7 way switch amount output interfaces that link to each other with the emission fpga chip.
5. Vehicle Optical Terminal according to claim 1 is characterized in that: described optical receiver also comprises and the 7 way switch amount output interfaces and the 7 way switch amount input interfaces that receive fpga chip and link to each other.
6. the described Vehicle Optical Terminal of any one is characterized in that: be provided with third level lightning protection device on the interfaces for external devices on the described transmitter and receiver according to claim 1～5.
7. Vehicle Optical Terminal according to claim 1, it is characterized in that: described optical fiber is polymer optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102662577A CN103326785A (en) | 2013-06-28 | 2013-06-28 | Vehicle-mounted optical transmitter and receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102662577A CN103326785A (en) | 2013-06-28 | 2013-06-28 | Vehicle-mounted optical transmitter and receiver |
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| Publication Number | Publication Date |
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| CN103326785A true CN103326785A (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102662577A Pending CN103326785A (en) | 2013-06-28 | 2013-06-28 | Vehicle-mounted optical transmitter and receiver |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973270A (en) * | 2017-04-19 | 2017-07-21 | 成都市宏山科技有限公司 | Optical signal transmission receiving terminal based on field programmable gate array |
| CN106973269A (en) * | 2017-04-19 | 2017-07-21 | 成都市宏山科技有限公司 | Optical signal transmission launch terminal based on FPGA |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303332Y (en) * | 2008-11-13 | 2009-09-02 | 上海鸣啸实业发展有限公司 | Vehicle-mounted comprehensive information device based on IP platform |
| CN202050503U (en) * | 2011-03-11 | 2011-11-23 | 孙飞 | Multichannel uncompressed digital video optical fiber transmission device |
| CN202153773U (en) * | 2011-07-19 | 2012-02-29 | 南京苏瑞科技实业有限公司 | Video monitoring lightning protection equipment box |
| US20130071110A1 (en) * | 2011-09-16 | 2013-03-21 | Tony Susanto | Providing Optical Power Information from an Optical Receiver to an Optical Transmitter Using a Serial Bus |
-
2013
- 2013-06-28 CN CN2013102662577A patent/CN103326785A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303332Y (en) * | 2008-11-13 | 2009-09-02 | 上海鸣啸实业发展有限公司 | Vehicle-mounted comprehensive information device based on IP platform |
| CN202050503U (en) * | 2011-03-11 | 2011-11-23 | 孙飞 | Multichannel uncompressed digital video optical fiber transmission device |
| CN202153773U (en) * | 2011-07-19 | 2012-02-29 | 南京苏瑞科技实业有限公司 | Video monitoring lightning protection equipment box |
| US20130071110A1 (en) * | 2011-09-16 | 2013-03-21 | Tony Susanto | Providing Optical Power Information from an Optical Receiver to an Optical Transmitter Using a Serial Bus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973270A (en) * | 2017-04-19 | 2017-07-21 | 成都市宏山科技有限公司 | Optical signal transmission receiving terminal based on field programmable gate array |
| CN106973269A (en) * | 2017-04-19 | 2017-07-21 | 成都市宏山科技有限公司 | Optical signal transmission launch terminal based on FPGA |
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Application publication date: 20130925 |