CN205584207U - Two -way audio frequency optical transmitter and receiver - Google Patents
Two -way audio frequency optical transmitter and receiver Download PDFInfo
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- CN205584207U CN205584207U CN201620322269.6U CN201620322269U CN205584207U CN 205584207 U CN205584207 U CN 205584207U CN 201620322269 U CN201620322269 U CN 201620322269U CN 205584207 U CN205584207 U CN 205584207U
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- 239000000835 fiber Substances 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
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Abstract
The utility model discloses a two -way audio frequency optical transmitter and receiver includes: first receiving and dispatching end and second receiving and dispatching end that the structure is the same, this first receiving and dispatching end and second receiving and dispatching end are through single core optical fiber communication intercommunication, first interface unit, voice unit, FPGA unit and light transmit -Receive unit are drawn together to first receiving and dispatching hand ladle, the one end of first interface unit is used for connecting audio input unit or ethernet, the other end with voice unit both -way communication, the one end and the voice unit both -way communication of FPGA unit are connected realization audio transmission, the other end and the transmission of light transmit -Receive unit both -way communication of FPGA unit should be connected with single core optical fiber by the light transmit -Receive unit. This technical scheme can realize two -way audio transmission, has realized the synchronization, and this optical transmitter and receiver operation is stable.
Description
Technical field
This utility model relates to optical transmitter and receiver technical field, especially a kind of two way audio optical transmitter and receiver.
Background technology
Fibre Optical Communication Technology plays important role in the process that social informatization develops, and is an important branch of communication technology.Along with microelectronics and the continuous renewal of large scale integrated circuit, Fibre Optical Communication Technology have also been obtained development rapidly.World record currently as the maximum transmission rate of laboratory is that 10.9Tbit/s wireless relay transmits 300km.Optical fiber instead of copper cash in a lot of occasions and becomes main transmission medium, the no matter comprehensive wiring system in telecommunication backbone net or Ethernet or campus network or even intelligent building,, there is the existence of optical fiber no matter land or ocean, is directed to Fibre Optical Communication Technology.
Traditional audio frequency optical transmitter and receiver is mainly one-way transmission, it is difficult to meets and uses requirement, is especially voice conferencing or video conference process, it is impossible to realize simultaneous voice, and this problem needs to solve.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model proposes a kind of two way audio optical transmitter and receiver, its objective is to realize bi-directional synchronization voice, improve stability and the real-time Transmission effect of bi-directional light terminal.
In order to solve above-mentioned technical problem, the basic technical scheme that the utility model proposes is: a kind of two way audio optical transmitter and receiver, including:
The first sending and receiving end and the second sending and receiving end, this first sending and receiving end and the second sending and receiving end that structure is identical are communicated by single-core fiber and connect；
Described first sending and receiving end includes first interface unit, voice unit, FPGA unit and light Transmit-Receive Unit, one end of described first interface unit is used for connecting audio input unit or Ethernet, the other end and institute's speech units two-way communication, one end of described FPGA unit is connected with voice unit two-way communication and realizes audio transmission, the other end of described FPGA unit transmits with light Transmit-Receive Unit two-way communication, and this light Transmit-Receive Unit is connected with single-core fiber；
Described second sending and receiving end includes light Transmit-Receive Unit, FPGA unit, voice unit and second interface unit consistent with first interface unit, one end of described smooth Transmit-Receive Unit connects single-core fiber, other end two-way communication connects described FPGA unit, the other end two-way communication of this FPGA unit connects voice unit, the other end two-way communication of this voice unit connects the second interface unit, and the other end of described second interface unit is used for connecting audio input unit or Ethernet；
Wherein, institute's speech units all connects the SPI control module of FPGA unit.
Further, institute's speech units is TLV320AIC23 chip.
Further, described first and second interface unit is XLR interface.
Further, described smooth Transmit-Receive Unit is single fiber bi-directional optical fiber transceiver module.
Further, described FPGA unit is EP2C35F672C8 chip.
The beneficial effects of the utility model are:
In the technical solution of the utility model, it is designed as two-way audio transmission, it is possible to realize two way audio transmission, it is achieved that synchronization；It addition, the optical transmitter and receiver of this programme is stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of two way audio optical transmitter and receiver.
Detailed description of the invention
Below with reference to accompanying drawing 1, this utility model is described further, but protection domain of the present utility model should not limited with this.
This utility model one two way audio optical transmitter and receiver, including:
The first sending and receiving end 100 and the second sending and receiving end 200 that structure is identical, this first sending and receiving end 100 and the second sending and receiving end 200 are communicated connection by single-core fiber 01.Can be with audio input unit to obtain audio signal by the first sending and receiving end 100, owing to being two-way, this first sending and receiving end 100 can also receive the signal that Ethernet transmits and be then passed through single-core fiber 01 and be transferred to the second sending and receiving end 200.The second in like manner described sending and receiving end 200 and the function of the first sending and receiving end 02 are the same, do not repeat.
Detailed, described first sending and receiving end 100 includes first interface unit 1001, voice unit 1002, FPGA unit 1003 and light Transmit-Receive Unit 1004, one end of described first interface unit 1001 is used for connecting audio input unit or Ethernet, the other end and institute's speech units 1002 two-way communication, one end of described FPGA unit 1003 is connected with voice unit 1002 two-way communication and realizes audio transmission, the other end of described FPGA unit 1003 transmits with light Transmit-Receive Unit 1004 two-way communication, and this light Transmit-Receive Unit 1004 is connected with single-core fiber 01；Concrete, light Transmit-Receive Unit 1004 is single fiber bi-directional optical fiber transceiver module, has optical transmission circuit and optical receiving circuit, and it is connected realization and receives or send signal with single-core fiber 01.
Further, institute's speech units is TLV320AIC23 chip；High performance stereo audio Codec chip, built-in earphone out amplifier, support two kinds of input modes (alternative) of MIC and LINE IN, and input and output are all had programmable-gain regulation.Analog-digital converter and digital to analog converter have been internally integrated it at TLV320AIC23, use ∑-△ oversampling technique, sample rate optional 16bit/s, 20bit/s, 24bi/s t and 32bit/s, conversion accuracy is the highest, the output signal-to-noise ratio of analog-digital converter is 90dB, and the output signal-to-noise ratio of digital to analog converter is 100dB.
Wherein, described first and second interface unit is XLR interface.Described FPGA unit is EP2C35F672C8 chip.
Additionally, the second described sending and receiving end 200 is completely the same with the structure of the first described sending and receiving end 100, particularly as follows: include light Transmit-Receive Unit 1004, FPGA unit 1003, voice unit 1002 and second interface unit 1001 consistent with first interface unit, one end of described smooth Transmit-Receive Unit connects single-core fiber, other end two-way communication connects described FPGA unit, the other end two-way communication of this FPGA unit connects voice unit, the other end two-way communication of this voice unit connects the second interface unit, the other end of described second interface unit is used for connecting audio input unit or Ethernet.
Wherein, institute's speech units all connects the SPI control module 02 of FPGA unit.
By the technical program, overcome the drawback of original simulated light terminal, use module design, there is vast potential for future development, have begun to application at aspects such as telecommunications, electric power, monitoring, Industry Control, transmission of videos.Its operation stability is high, and can realize bi-directional synchronization voice transfer, greatly meets use requirement.
The announcement of book and teaching according to the above description, above-mentioned embodiment can also be changed and revise by this utility model those skilled in the art.Therefore, this utility model is not limited to detailed description of the invention disclosed and described above, should also be as falling in scope of the claims of the present utility model to modifications and changes more of the present utility model.Although additionally, employ some specific terms in this specification, but these terms are merely for convenience of description, this utility model is not constituted any restriction.
Claims (5)
1. a two way audio optical transmitter and receiver, it is characterised in that including:
The first sending and receiving end and the second sending and receiving end, this first sending and receiving end and the second sending and receiving end that structure is identical are communicated by single-core fiber and connect；
Described first sending and receiving end includes first interface unit, voice unit, FPGA unit and light Transmit-Receive Unit, one end of described first interface unit is used for connecting audio input unit or Ethernet, the other end and institute's speech units two-way communication, one end of described FPGA unit is connected with voice unit two-way communication and realizes audio transmission, the other end of described FPGA unit transmits with light Transmit-Receive Unit two-way communication, and this light Transmit-Receive Unit is connected with single-core fiber；
Described second sending and receiving end includes light Transmit-Receive Unit, FPGA unit, voice unit and second interface unit consistent with first interface unit, one end of described smooth Transmit-Receive Unit connects single-core fiber, other end two-way communication connects described FPGA unit, the other end two-way communication of this FPGA unit connects voice unit, the other end two-way communication of this voice unit connects the second interface unit, and the other end of described second interface unit is used for connecting audio input unit or Ethernet；
Wherein, institute's speech units all connects the SPI control module of FPGA unit.
2. a kind of two way audio optical transmitter and receiver as claimed in claim 1, it is characterised in that:
Institute's speech units is TLV320AIC23 chip.
3. a kind of two way audio optical transmitter and receiver as claimed in claim 1, it is characterised in that:
Described first and second interface unit is XLR interface.
4. a kind of two way audio optical transmitter and receiver as claimed in claim 1, it is characterised in that:
Described smooth Transmit-Receive Unit is single fiber bi-directional optical fiber transceiver module.
5. a kind of two way audio optical transmitter and receiver as claimed in claim 1, it is characterised in that:
Described FPGA unit is EP2C35F672C8 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322269.6U CN205584207U (en) | 2016-04-18 | 2016-04-18 | Two -way audio frequency optical transmitter and receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322269.6U CN205584207U (en) | 2016-04-18 | 2016-04-18 | Two -way audio frequency optical transmitter and receiver |
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| Publication Number | Publication Date |
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| CN205584207U true CN205584207U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620322269.6U Expired - Fee Related CN205584207U (en) | 2016-04-18 | 2016-04-18 | Two -way audio frequency optical transmitter and receiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507316A (en) * | 2021-06-22 | 2021-10-15 | 武汉凹伟能源科技有限公司 | Single-fiber bidirectional passive optical fiber audio transmission system and optical fiber transmission network |
-
2016
- 2016-04-18 CN CN201620322269.6U patent/CN205584207U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507316A (en) * | 2021-06-22 | 2021-10-15 | 武汉凹伟能源科技有限公司 | Single-fiber bidirectional passive optical fiber audio transmission system and optical fiber transmission network |
| CN113507316B (en) * | 2021-06-22 | 2023-04-18 | 武汉凹伟能源科技有限公司 | Single-fiber bidirectional passive optical fiber audio transmission system and optical fiber transmission network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160914 Termination date: 20190418 |
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| CF01 | Termination of patent right due to non-payment of annual fee |