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Optical fiber safety early warning signal identification system

A technology of safety early warning and signal recognition, which is applied in the direction of optical fiber/cable installation, measurement of vibration, measurement devices, etc., can solve problems such as difficult to work effectively, immature signal recognition, unstable optical system, etc.

Active Publication Date: 2008-01-02
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This invention is a breakthrough for the safety warning of long-distance linear targets or large-area area targets, but the disadvantage is that the optical path system of this invention is unstable, it is difficult to work effectively, and the identification of signals is not yet mature.

Method used

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  • Optical fiber safety early warning signal identification system

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Embodiment Construction

[0031] Embodiment. The specific embodiment of the present invention is described with this example and the present invention is described further. This example is an experimental prototype, and its composition is shown in Figure 2. The thick connecting lines in the figure are optical fibers, and the thin connecting lines are electric wires. Specifically constitute as: one output of the photoelectric signal processing circuit 302 is connected to the input of the characteristic signal processing main frame 303-1, and the output of the characteristic signal processing main frame 303-1 is connected to the input of the local management control system 110; the other output of the photoelectric signal processing circuit 302 is also It can be connected to the input of the positioning system 106, the output of the positioning system 106 is connected to the input of the visual data analysis system 308, one output of the visual data analysis system 308 is connected to the local managemen...

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Abstract

The invention is an optic fiber safety prewarning signal identifying system of buried tube, construction or important establishment and area. Output of the optic fiber interferometer is connected with photoelectricity signal process circuit [302], character signal pick-up module [303] connected with the photoelectricity signal process circuit [302] is connected with expert system [304] then connected with the analyzing and judging system [305], the analyzing and judging system [305] is connected with local managing system [110]; output of the photoelectricity signal process circuit [302] is connected with audio processor [306] with audio buffer [307], output of the audio processor [306] is connected with local managing system [110], another output is connected with D / A[309], amplifying circuit [310] to the audio output equipment [311], at the same time the local managing system [110] possesses a output to audio equipment [311]. The invention can detect any soil oscillation signal within 3 meters effectively; judgment for property of event is accurate, stable, and reliable, without leakage.

Description

technical field [0001] The invention relates to an optical fiber safety early warning signal identification system for safety protection and early warning of buried pipelines or structures or important facilities and areas, and relates to the technical fields of mechanical vibration measurement, impact measurement and pipeline systems. Background technique [0002] For substances such as oil, natural gas, refined oil, coal slurry and water, pipeline transportation is a safe, economical and efficient transportation method, and it is playing an increasingly important role in the global transportation industry, especially in petroleum, finished products Oil and natural gas play an extremely important role in the transportation of flammable and explosive energy substances with high transaction value. In our country, at least thousands of kilometers of pipelines are built every year. It can be said that pipelines are the main arteries of energy transportation. Oil, refined oil an...

Claims

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Application Information

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IPC IPC(8): G02B6/50G01H1/00G01P15/00
Inventor 张金权王小军焦书浩王飞方德学霍峰王赢倪明
Owner BC P INC CHINA NAT PETROLEUM CORP
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