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FPGA and OTN based data acquisition and transmission system

A transmission system and data acquisition technology, applied in transmission systems, electromagnetic wave transmission systems, optical fiber transmission, etc., can solve problems that cannot be solved by FPGA and reduce data transmission rate, achieve low maintenance cost, increase data transmission rate, and improve communication quality Effect

Inactive Publication Date: 2018-03-27
STATE GRID ZHEJIANG ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a data acquisition and transmission system based on FPGA and OTN, which is used to solve the problem that the FPGA in the prior art cannot solve the problem that the data transmission rate of the optical module is reduced due to changes in temperature and transmission power

Method used

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  • FPGA and OTN based data acquisition and transmission system
  • FPGA and OTN based data acquisition and transmission system
  • FPGA and OTN based data acquisition and transmission system

Examples

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Embodiment 1

[0032] combined with figure 1As shown, a data acquisition and transmission system based on FPGA and OTN includes a data acquisition module for collecting optical signals and performing photoelectric conversion, the data acquisition module is connected with an FPGA module, and the FPGA module is connected to the communication module and The upper computer, the data acquisition module includes an optical module and a signal processing module, the optical module includes an optical fiber connector connected to an optical fiber, the optical fiber connector is connected to a transmitting end optical component and a receiving end optical component, and the optical module It also includes a control circuit connected to the optical component at the transmitting end and the optical component at the receiving end. The control circuit includes an automatic temperature control unit for controlling the temperature of the optical component at the transmitting end and an output control unit f...

Embodiment 2

[0036] On the basis of Example 1, in conjunction with the attached Figure 1-2 As shown, the automatic temperature control unit includes a temperature sensor circuit for detecting the temperature of the optical component at the transmitting end, the temperature sensor circuit is connected to a signal amplification circuit, the output end of the signal amplification circuit is connected to the first processor, The first processor is driven and connected to a refrigerator.

[0037] working principle:

[0038] The temperature sensor circuit in the automatic temperature control unit is used to detect the temperature of the optical component at the transmitting end. The temperature sensor uses a thermistor, and the temperature change of the optical component at the transmitting end is reflected by the change of the resistance of the thermistor. The change of the current in the temperature sensor circuit causes a change in the magnitude of the current. Therefore, according to the c...

Embodiment 3

[0040] On the basis of embodiment 2, in conjunction with the attached Figure 1-3 As shown, the automatic power control unit includes an output power detection circuit for detecting the optical power of the optical component at the transmitting end, the output power detection circuit is connected with a power deviation detection circuit, and the power deviation circuit is connected with a comparison amplifier circuit , the comparison amplifier circuit is connected with a bias current drive circuit for controlling the bias current tracking current threshold of the optical component at the transmitting end, and the bias current drive circuit is connected with the output power detection circuit.

[0041] working principle:

[0042] The automatic power control unit includes an output power detection circuit, which is used to detect the output power of the optical component at the transmitting end. Usually, a photodetector packaged in an optical module is used for backlight detecti...

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Abstract

The invention discloses an FPGA and OTN based data acquisition and transmission system, comprising a data acquisition module, wherein the data acquisition module is connected with an FPGA module, theFPGA module is sequentially connected with a communication module and an upper computer, the data acquisition module comprises an optical module and a signal processing module, the optical module comprises an optical fiber connector that is connected with an optical fiber, the optical fiber connector is connected with a transmitter optical component and a receiver optical component, the optical module also comprises a control circuit, and the control circuit comprises an automatic temperature control unit for controlling the temperature of the transmitter optical component and an automatic power control unit for controlling the output power of the transmitter optical component. According to the scheme of the invention, the optical module is provided with the automatic temperature control unit and the automatic power control unit for stabilizing the temperature and the output power of the transmitter optical component, the problem that the bit error rate and data transmission rate are reduced due to the changes of the temperature and the transmitting power can be avoided, and the communication quality of an optical transport network (OTN) can be improved.

Description

technical field [0001] The invention relates to the fields of data acquisition and data processing, in particular, a data acquisition and transmission system based on FPGA and OTN. Background technique [0002] In the field of data communication, because optical fiber communication has the advantages of high transmission rate, wide transmission frequency bandwidth, large communication capacity, small fiber attenuation, long transmission distance, and anti-interference, more and more optical fiber communication systems are used for data transmission. With the development of communication technology, the transmission rate of optical signals is getting higher and higher, and the processing of optical signals also requires a processor capable of processing high-speed data signals, and field programmable gate array FPGA has faster processing speed, so it is becoming more and more More FPGAs are connected to optical modules to process optical signals. In the prior art, the connec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/25H04B10/40
CPCH04B10/25H04B10/25891H04B10/40
Inventor 杨鸿珍吴秋晗程路明王云烨吴慧赵建鹏张明熙由奇林
Owner STATE GRID ZHEJIANG ELECTRIC POWER
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