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External safety warning and positioning system for optical cable and photoelectric composite cable

A photoelectric composite, security early warning technology, applied in the direction of alarm, phase influence characteristic measurement, material analysis by optical means, etc., to avoid negative influence, avoid data theft, and avoid indirect loss.

Active Publication Date: 2012-02-22
浙江诺可电子科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing traditional online monitoring system for optical cables is to alarm after the incident. At this time, the damage caused by the incident has already been formed, and the role of the emergency mechanism can only be the recovery of communication; if data theft occurs, there is currently no technical ability to , or even call the police afterwards

Method used

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  • External safety warning and positioning system for optical cable and photoelectric composite cable
  • External safety warning and positioning system for optical cable and photoelectric composite cable
  • External safety warning and positioning system for optical cable and photoelectric composite cable

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Embodiment

[0022] The optical cable and photoelectric composite cable external safety early warning and positioning system designed by the present invention, the whole system is constructed as follows figure 1 , the system is controlled by the operator through the host program. The operator starts the system through the host program interface and loads the electronic map of the location where the system is installed. After passing the relevant technical training, the operator sets parameters according to the system environment and specific requirements. After the program is started, the sensor starts to monitor the communication optical fiber in real time, continuously sends laser signals to the sensing unit as input excitation, and at the same time converts the received optical signal into an electrical signal and performs filtering and amplification. The signal after the above processing will be converted into a digital signal with a high sampling rate through the high-speed AD acqui...

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Abstract

The invention discloses an external safety early warning and positioning system for an optical cable and a photoelectric composite cable, which mainly includes an optical fiber sensing optical system, a signal processing system and system software, wherein the optical fiber sensing optical system is a bidirectional common optical path distributed optical fiber interferometer, The signal processing system is DFB semiconductor laser constant current drive circuit, temperature control circuit, PIN detector circuit and AD conversion acquisition circuit. The system software includes front-end acquisition and preprocessing software package, wavelet analysis and feature extraction software package, time delay judgment software package and user interface. This kind of external safety warning and positioning system for optical cables and photoelectric composite cables, real-time safety warning and accurate positioning system for communication optical cables can provide early warning before damage events occur, so that communication maintenance units can take corresponding preventive measures before the event occurs , so as to avoid the direct loss caused by destruction.

Description

technical field [0001] The invention belongs to the field of optoelectronics and information technology, in particular to an external safety early warning and positioning system for optical cables and photoelectric composite cables. Background technique [0002] Optical cables and photoelectric composite cables are currently widely used in the optical communication industry and the power industry as an information transmission medium. The operation safety of optical cables and photoelectric composite cables is related to social stability and the protection of national economic interests. Therefore, real-time online early warning and location monitoring of external infringement events during the operation of optical cables and photoelectric composite cables is the key to ensuring their safe operation. [0003] The damage detection of traditional optical cables and photoelectric composite cables is mainly carried out by optical time domain reflectometer (OTDR). This technology...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/958G01N21/45G08B21/00
Inventor 任尚今
Owner 浙江诺可电子科技发展有限公司
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