Position detection method and device for fault of cable

A technology of fault location and detection method, applied in the field of communication, can solve the problem of inability to determine the specific location of the cable fault point, and achieve the effect of realizing self-diagnosis function, improving fault diagnosis efficiency and reducing cost.

Active Publication Date: 2014-02-19
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This standing wave ratio detection technology can only determine whether the system standing wave ratio is faulty

Method used

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  • Position detection method and device for fault of cable
  • Position detection method and device for fault of cable
  • Position detection method and device for fault of cable

Examples

Experimental program
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Effect test

Embodiment

[0036] Such as figure 1 As shown, this embodiment provides a cable fault position detection device, including:

[0037] A frequency scanning transmitting module, used for transmitting a frequency scanning signal;

[0038] Wherein, the frequency scanning transmitting module also includes:

[0039] The baseband module is used for sweeping and transmitting baseband signals;

[0040] The transmitting module is configured to modulate and encode the baseband signal into a radio frequency signal.

[0041] A reflection coefficient acquisition module, configured to calculate reflection coefficients under a set of frequencies;

[0042] The fault point judgment module is used to calculate the relationship between the reflection coefficient and the cable position or the relationship between the standing wave ratio and the cable position according to the reflection coefficient corresponding to the group of frequencies; and compare the reflection coefficient or the standing wave ratio wi...

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Abstract

The invention discloses a position detection method and device for a fault of a cable. The method includes: transmitting swept-frequency signals, obtaining reflection coefficients at a group of frequencies through calculation; obtaining a relation between the reflection coefficients and positions of the cable or a relation between standing-wave ratios and the positions of the cable through calculation according to the reflection coefficients corresponding to the group of frequencies; comparing the reflection coefficients or the standing-wave ratios with preset threshold values and if one specific reflection coefficient or one specific standing-wave ratio is larger than a corresponding threshold value, a position of the cable, corresponding to the reflection coefficient or the standing-wave ratio is a fault point of the cable. The position detection method and device for the fault of the cable does not require adding of a hardware device or location of the fault through an instrument carried by detecting personnel and a breakpoint or a fault position of a cable between a device and an antenna feeder can be detected only through a soft procedure so that cost is reduced greatly, fault-diagnosing efficiency is improved and self-diagnosing function of the device is realized.

Description

technical field [0001] The invention relates to the communication field, in particular to a cable fault position detection method and device. Background technique [0002] With the continuous development of mobile communication systems, operators have set their sights on the serviceability of equipment in addition to paying attention to the performance and quality of equipment itself. Standing wave ratio detection is an important service function, an important means of checking equipment failures, and used to ensure the quality of signals in the communication process. [0003] In the prior art, the standing wave ratio detection is to calculate the reflection coefficient and standing wave ratio by detecting the transmitted signal and the reflected signal. The reflection coefficient and standing wave ratio correspond to a certain frequency point, and only the reflection coefficient of a specific frequency point is obtained. and standing wave ratio. The VSWR detection technol...

Claims

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Application Information

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IPC IPC(8): G01R31/08G01R31/02
Inventor 王国强马兴望别业楠游爱民
Owner ZTE CORP
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