CN104539364A - Audio data transmitting device based on optical fibers - Google Patents
Audio data transmitting device based on optical fibers Download PDFInfo
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- CN104539364A CN104539364A CN201410852218.XA CN201410852218A CN104539364A CN 104539364 A CN104539364 A CN 104539364A CN 201410852218 A CN201410852218 A CN 201410852218A CN 104539364 A CN104539364 A CN 104539364A
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- programmable logic
- logic device
- optical fiber
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Abstract
The invention discloses an audio data transmitting device based on optical fibers. The device is arranged between an audio mainframe and an upper computer, and comprises an audio signal source, an audio transceiver, a programmable logic device, a first optical module, a second optical module and a PCI transmission adapter used for optical fiber communication. A signal output end of the audio signal source is connected with a signal input end of the audio transceiver. The signal output end of an audio signal emitter is connected with the programmable logic device. The programmable logic device is connected with the first optical module through a LVDS electrical level port. The programmable logic device and the first optical module are arranged on the audio mainframe. The second optical module and the PCI transmission adapter are arranged on the upper computer. The second optical module is used as an optical fiber interface by the PCI transmission adapter. The first optical module is connected with the second optical module through the optical fibers. According to the audio data transmitting device, the digitization of the audio and the two-way direct-reverse data transmission can be achieved, the precise and correct transmission process can be achieved, and the high communication efficiency can be improved.
Description
Technical field
The present invention relates to a kind of fibre optic data transmission, be specifically related to based on optical fiber audio data transmission apparatus.
Background technology
Optical fiber telecommunications system take light as carrier wave, utilizes the glass-pulling of very high purity to become superfine optical fiber as transmission medium, by light-to-current inversion, use up the communication system of transmission information.Along with the development of informationized society, information capacity increases severely day by day, and for improving transmission speed and the capacity of information, optical fiber communication is widely used in informationalized development, becomes the important technology after microelectric technique in message area.And optical fiber audio data transmission is the one in optical fiber communication, is use for reference computer interconnected network structure, utilizes optical fiber as signal transmission medium, the transmission of the voice signal set up between various audio frequency apparatus and shared Achtechture.Along with the propelling of China's modernization, optical fiber audio data transmission is simple with system configuration, the advantage of high efficient and flexible, application has been started in management systems such as urban transit system, highway, industrial and mining enterprises, but, comparatively rugged environment, a large amount of signal distributing equipment that Signal share can be caused to add and the decay of wire long range propagation such as huge audio cable quantity, powerful Electromagnetic Interference, radiation or corrosion.So, definitely errorless in order to ensure optical fiber audio data transmission, communication efficiency is high, meet the need of market and there is great practical significance.
Summary of the invention
The technical problem to be solved in the present invention is to provide based on optical fiber audio data transmission apparatus, can realize digitized audio frequency and the forward and reverse data of two-way to biography, definitely errorless in transmitting procedure, communication efficiency is high.
Based on optical fiber audio data transmission apparatus, it is arranged between audio frequency main frame and host computer, comprise audio signal source, audio transceiver, programmable logic device, first optical module, second optical module and the PCI transmission card for optical fiber communication, described audio signal source signal output part connects the signal input part of audio transceiver, the signal output part of audio signal reflector connects programmable logic device, described programmable logic device and the first optical module to be arranged on audio frequency main frame and to be connected by LVDS electric level interface, described second optical module and PCI transmission card are arranged on host computer, PCI transmission card is using the second optical module as optical fiber interface, described first optical module and the second optical module pass through Fiber connection.
Preferably, described programmable logic device is integrated with data encoding decoder and serioparallel exchange module, and wherein data encoding decoder is connected with the two-way communication of serioparallel exchange module.
Further, described PCI transmission card is built-in with programmable logic device further.
Preferably, described first optical module and the second optical module are communicated to connect by fiber optic serial.
Preferably, described programmable logic device is CPLD programmable logic device.
Beneficial effect of the present invention is: the present invention is using optical fiber as transmission medium, audio signal is through the network equipment transmission of data signals of transform coding by optical fiber interface, original audio frequency is converted to again through decoding, few in data transmission procedure signal attenuation, effective opposing electromagnetic noise or forceful electric power interference etc., achieve digitized audio frequency and the forward and reverse data of two-way to biography, definitely errorless, communication efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that the present invention is based on optical fiber audio data transmission apparatus.
Embodiment
Accompanying drawing discloses concrete structure of the present invention without limitation, and below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, based on optical fiber audio data transmission apparatus, it is arranged between audio frequency main frame and host computer, comprise audio signal source, audio transceiver, programmable logic device, first optical module, second optical module and the PCI transmission card for optical fiber communication, described audio signal source signal output part connects the signal input part of audio transceiver, the signal output part of audio signal reflector connects programmable logic device, described programmable logic device and the first optical module to be arranged on audio frequency main frame and to be connected by LVDS electric level interface, described second optical module and PCI transmission card are arranged on host computer, PCI transmission card is using the second optical module as optical fiber interface, described first optical module and the second optical module pass through Fiber connection.Described programmable logic device is integrated with data encoding decoder and serioparallel exchange module, and wherein data encoding decoder is connected with the two-way communication of serioparallel exchange module.Described PCI transmission card is built-in with programmable logic device further.Described first optical module and the second optical module are communicated to connect by fiber optic serial.Described programmable logic device is CPLD programmable logic device.
Claims (5)
1. based on optical fiber audio data transmission apparatus, it is arranged between audio frequency main frame and host computer, comprise audio signal source, audio transceiver, programmable logic device, first optical module, second optical module and the PCI transmission card for optical fiber communication, it is characterized in that: described audio signal source signal output part connects the signal input part of audio transceiver, the signal output part of audio signal reflector connects programmable logic device, described programmable logic device and the first optical module to be arranged on audio frequency main frame and to be connected by LVDS electric level interface, described second optical module and PCI transmission card are arranged on host computer, PCI transmission card is using the second optical module as optical fiber interface, described first optical module and the second optical module pass through Fiber connection.
2. according to claim 1 based on optical fiber audio data transmission apparatus, it is characterized in that: described programmable logic device is integrated with data encoding decoder and serioparallel exchange module, wherein data encoding decoder is connected with the two-way communication of serioparallel exchange module.
3. according to claim 1 based on optical fiber audio data transmission apparatus, it is characterized in that: described PCI transmission card is built-in with programmable logic device further.
4. according to claim 1 based on optical fiber audio data transmission apparatus, it is characterized in that: described first optical module and the second optical module are communicated to connect by fiber optic serial.
5. according to claim 1 or 3 based on optical fiber audio data transmission apparatus, it is characterized in that: described programmable logic device is CPLD programmable logic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852218.XA CN104539364A (en) | 2014-12-31 | 2014-12-31 | Audio data transmitting device based on optical fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410852218.XA CN104539364A (en) | 2014-12-31 | 2014-12-31 | Audio data transmitting device based on optical fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104539364A true CN104539364A (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410852218.XA Pending CN104539364A (en) | 2014-12-31 | 2014-12-31 | Audio data transmitting device based on optical fibers |
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| CN (1) | CN104539364A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253986A (en) * | 2016-08-18 | 2016-12-21 | 桂林创研科技有限公司 | Fiber optic communications devices |
Citations (6)
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|---|---|---|---|---|
| CN101039150A (en) * | 2006-12-23 | 2007-09-19 | 邓志华 | Vehicle audio optical fiber transmission device |
| CN101330326A (en) * | 2007-06-18 | 2008-12-24 | 上海普天邮通科技股份有限公司 | Digital circuit for implementing audio data optical transmission using CPLD and method thereof |
| CN201904783U (en) * | 2010-11-29 | 2011-07-20 | 大连捷成实业发展有限公司 | DVI (digital visual interface) and audio remote transmission device based on optical fibers |
| CN203574660U (en) * | 2013-12-02 | 2014-04-30 | 韶山恒旺电气有限公司 | SPDIF optical fiber audio frequency decoding and forwarding circuit |
| CN104104893A (en) * | 2013-04-07 | 2014-10-15 | 北京同步科技有限公司 | Device capable of carrying out remote transmission on mixed signals simultaneously through single optical fiber and transmission method |
| CN204334577U (en) * | 2014-12-31 | 2015-05-13 | 桂林铭瑶电子科技有限公司 | Based on optical fiber audio data transmission apparatus |
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2014
- 2014-12-31 CN CN201410852218.XA patent/CN104539364A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101039150A (en) * | 2006-12-23 | 2007-09-19 | 邓志华 | Vehicle audio optical fiber transmission device |
| CN101330326A (en) * | 2007-06-18 | 2008-12-24 | 上海普天邮通科技股份有限公司 | Digital circuit for implementing audio data optical transmission using CPLD and method thereof |
| CN201904783U (en) * | 2010-11-29 | 2011-07-20 | 大连捷成实业发展有限公司 | DVI (digital visual interface) and audio remote transmission device based on optical fibers |
| CN104104893A (en) * | 2013-04-07 | 2014-10-15 | 北京同步科技有限公司 | Device capable of carrying out remote transmission on mixed signals simultaneously through single optical fiber and transmission method |
| CN203574660U (en) * | 2013-12-02 | 2014-04-30 | 韶山恒旺电气有限公司 | SPDIF optical fiber audio frequency decoding and forwarding circuit |
| CN204334577U (en) * | 2014-12-31 | 2015-05-13 | 桂林铭瑶电子科技有限公司 | Based on optical fiber audio data transmission apparatus |
Non-Patent Citations (1)
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| 生安财 等: "基于CPLD的数字光端机的设计与实现", 《应用科技》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253986A (en) * | 2016-08-18 | 2016-12-21 | 桂林创研科技有限公司 | Fiber optic communications devices |
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Application publication date: 20150422 |