CN215417524U

CN215417524U - System for realizing far end extension of analog voice in any direction through optical signals

Info

Publication number: CN215417524U
Application number: CN202121651613.3U
Authority: CN
Inventors: 陈敏; 蔡亦智; 夏念明; 戴良才; 白喜喜; 林南建; 王建豪
Original assignee: Shanghai Shenou Communication Equipment Co ltd
Current assignee: Shanghai Shenou Communication Equipment Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-01-04
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a system for realizing that analog voice passes through arbitrary direction of light signal and extends distal end belongs to the communications field, including communication host and communication auxiliary engine, communication host and communication between the auxiliary engine through PDH and PCU for the module optical fiber cable be connected, PCU is from taking the single mode single fiber, communication host be connected with user power supply circuit, communication host include CPU module, FPGA module, DSP module, PDH circuit module, optical fiber cable carrier, auxiliary engine PCU module and auxiliary engine user circuit module, be coupled through the circuit between each module. The utility model discloses a code stream to analog voice is handled, transmits this section speech signal to distal end with the help of the optic fibre medium through the FPGA algorithm, solves not having under the circumstances of network, and most of cable transmission pronunciation distance limitation's problem is broken in super remote analog voice transmission.

Description

System for realizing far end extension of analog voice in any direction through optical signals

Technical Field

The utility model relates to the field of communication, in particular to a system for realizing the extension of analog voice to a far end in any direction through an optical signal.

Background

In the prior industrial communication field, data communication in long distance is directly communicated through cables, and the cable communication has large signal attenuation and is easily interfered by external electromagnetic field and electromagnetic wave in the data transmission process, so the transmission distance is short, and the communication cable has high cost and poor confidentiality. With the continuous development of the industrial field, optical fiber has become the main transmission medium in the industrial communication field. The optical fiber has the advantages of strong anti-interference capability, long transmission distance, high transmission rate, good confidentiality, low cost and the like, thereby solving the problem of cable transmission.

However, after the optical fiber signal is received by the switch, the optical fiber signal needs to be transmitted to each company department, and the existing switch does not enhance the signal, so that some departments far away from the switch can deteriorate when receiving the network signal, which may cause the phenomenon of data loss or interruption in the transmission process, thus causing inconvenience in use, and if another switch is erected, the capital needs to be increased.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model transmits the voice signal of the section to the far end by processing the code stream of the analog voice and an FPGA algorithm by means of an optical fiber medium, thereby solving the problems of ultra-far distance analog voice transmission and breaking the limit of the voice transmission distance of most cables under the condition of no network.

In order to solve the above problems, the present invention provides a system for extending a far end in any direction of an analog voice through an optical signal, and the technical scheme is as follows:

a system for realizing the far-end extension of analog voice in any direction through optical signals comprises a communication host and a communication auxiliary machine, wherein the communication host and the communication auxiliary machine are connected by an optical fiber line through a PDH module and a PCU module, and the PCU is provided with a single-mode single fiber; the communication host is connected with a user power supply circuit and comprises a CPU module, an FPGA module, a DSP module, a PDH circuit module, an optical fiber line carrier, an auxiliary machine PCU module and an auxiliary machine user circuit module, and all the modules are coupled through circuits.

Furthermore, the FPGA module is connected with a host user power supply circuit through a circuit.

Furthermore, the CPU module is coupled with the FPGA module and the DSP module through the HPI interface for communication, so that the data bidirectional transmission is realized.

Furthermore, the FPGA module collects and classifies all code stream signals through an HPI interface.

Furthermore, the DSP module is connected with the FPGA module through an HP interface circuit, the DSP module supports 256 DTMF signal number receiving, and key-press and voice noise analysis can be carried out on each code stream.

Furthermore, the PDH circuit module is connected with a host through the FPGA module, and a single-mode single-fiber optical module circuit is adopted for inter-module connection.

Further, the optical module of the PDH circuit module is connected with the PCU module of the remote communication auxiliary machine through an optical fiber cable medium.

Furthermore, the PCU circuit module decrypts, compresses and transmits the optical data of the host to the user circuit ground through the FPGA module and the DSP module of the communication auxiliary machine.

The working principle of the utility model is that the CPU module is adopted to pack and compress the signals collected by the FPGA algorithm, the FPGA module collects the analog code stream signals according to 8M signals through an analog user circuit, and the DSP module analyzes the analog audio signals on the code stream through a dual-audio technology and packs the analog audio signals in a classified manner. The FPGA module transmits a local terminal voice signal to the remote communication auxiliary machine through the optical fiber cable, the remote communication auxiliary machine receives a communication host terminal voice signal through the PCU module, and the analog voice is decoded and output through the DSP module, so that the ultra-remote analog voice transmission is realized.

The utility model has the beneficial effects that: the novel practical scheme has the advantages that the problem that the traditional switch cannot transmit communication in a long distance and cannot transmit analog voice of a user module under the same CPU to a long distance is solved, real-time data transmission monitoring is realized, voice and DTMF (dual tone multi frequency) transmission are collected in real time, the communication mode can be connected by using common optical fibers, the most common optical modules can directly transmit the voice to places in and out of dozens of kilometers, meanwhile, automatic detection of optical fiber disconnection is provided, warning and reminding are provided, and the remote communication telephone system can be normally used in practical application in an all-round mode.

Drawings

Fig. 1 is a diagram of an optical signal data transmission structure of the present invention.

The system comprises a CPU module, a 2-FPGA module, a 3-DSP module, a 4-PDH circuit module, a 5-auxiliary unit PCU module and a 6-communication auxiliary unit user module.

Detailed Description

Examples

The utility model will be further described in detail with reference to the following examples, which are given in the accompanying drawings.

Referring to fig. 1, a system for realizing analog voice extending far end in any direction through optical signals in this embodiment includes a communication host and a communication auxiliary, where the communication host and the communication auxiliary are connected by an optical fiber line through a PDH module 4 and a PCU module 5, and the PCU module 5 has a single-mode single fiber; the communication host is connected with a user power supply circuit, and comprises a CPU module 1, an FPGA module 2, a DSP module 3, a PDH circuit module 4, an optical fiber carrier, an auxiliary machine PCU module 5 and an auxiliary machine user circuit module, wherein the modules are coupled through a circuit.

The FPGA module 2 is connected with a host user power supply circuit through a circuit, the FPGA module 2 realizes acquisition of analog code stream signals according to 8M signals through an analog user circuit, and the FPGA module acquires and classifies all code stream signals through an HPI interface.

The CPU module 1 is coupled with the FPGA module 2 and the DSP module 3 through an HPI interface for communication, so that data bidirectional transmission is realized, and the CPU module 1 packs and compresses signals acquired by the FPGA module 2 through an algorithm.

The DSP module 3 is connected with the FPGA module 2 through an HP interface circuit, the DSP module 3 supports 256 DTMF signal number receiving, key pressing and voice noise analysis can be carried out on each code stream, and the DSP module 3 analyzes analog audio signals on the code streams through a dual-audio technology and packages the analog audio signals in a classified mode.

The PDH circuit module 4 is connected with the host through the FPGA module 2, a single-mode single-fiber optical module circuit is adopted for inter-module connection, and the FPGA module 2 transmits a local terminal voice signal to the remote auxiliary machine through an optical fiber cable.

And the optical module of the PDH circuit module 4 is connected with a remote communication auxiliary PCU module 5 through an optical fiber cable medium.

The PCU circuit module 5 decrypts, compresses and transmits the host optical data to a user circuit through an FPGA module and a DSP module of the communication auxiliary machine, the far-end auxiliary machine receives the host voice signal through the PCU module, and the analog voice is decoded and output through the DSP module.

The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the present disclosure may be made by those skilled in the art without departing from the spirit of the present disclosure.

Claims

1. A system for realizing analog voice to extend far end in any direction through optical signals comprises a communication host and a communication auxiliary machine, and is characterized in that the communication host and the communication auxiliary machine are connected by an optical fiber line through a PDH circuit module (4) and a PCU module (5), and the PCU module (5) is provided with a single-mode single fiber; the communication host is connected with a user power supply circuit and comprises a CPU module (1), an FPGA module (2), a DSP module (3), a PDH circuit module (4), an optical fiber carrier, an auxiliary machine PCU module (5) and an auxiliary machine user circuit module (6), wherein the CPU module (1) is coupled with the FPGA module (2) and the DSP module (3) through an HPI interface for communication, so that bidirectional data transmission is realized; the DSP module (3) is connected with the FPGA module (2) through an HP interface circuit, the PDH circuit module (4) is connected with a host through the FPGA module (2), an optical module of the PDH circuit module (4) is connected with a remote communication auxiliary PCU module (5) through an optical fiber cable medium, and the PCU module (5) decrypts, compresses and transmits host optical data to a user circuit ground through the FPGA module and the DSP module of the communication auxiliary.

2. The system according to claim 1, wherein the DSP module (3) supports 256 DTMF signal receipts, and can perform key-press and voice noise analysis on each code stream.

3. The system for realizing the extension of the analog voice in any direction through the optical signal as claimed in claim 2, wherein the PDH circuit module (4) is connected with the FPGA module (2) by a single-mode single-fiber optical module circuit.

4. The system for realizing the extension of the analog voice to the far end in any direction of the optical signal according to the claim 2 is characterized in that the FPGA module (2) realizes the acquisition of the analog code stream signal according to the 8M signal through the analog user circuit, and the DSP module (3) analyzes the analog audio signal on the code stream through the dual audio technology and packages the analog audio signal in a classified way.