Detection method and device for POI leaky coaxial cable and leaky coaxial cable detection system

Abstract

The invention discloses a detection method and device for point of interface (POI) leaky coaxial cable and a leaky coaxial cable detection system. The detection method comprises the following steps: in response to a start detection operation instruction, selecting a current slave detection device sequentially from a plurality of slave detection devices according to a preset detection sequence; foreach of the currently selected detection devices, acquiring actual signal power of a radio frequency signal detected by the current slave detection device; acquiring original signal power of the radio frequency signal detected by a primary detection device; calculating a power difference between the actual signal power and the original signal power; determining whether the power difference meetsa preset insertion loss requirement; and if the power difference does not meet the insertion loss requirement, determining that a problem exists in the leaky coaxial cable between the current slave detection device and the primary detection device, and ending the detecting operation. The invention realizes remote real-time monitoring of the installation status of the POI leaky coaxial cable and the determination of the fault location of the leaky coaxial cable.

Description

technical field [0001] The invention belongs to the field of leaky cable loss detection, and in particular relates to a leaky cable detection method and device for a multi-system access platform and a leaky cable detection system. Background technique [0002] Leaky cable is the abbreviation of leaky coaxial cable (Leaky Coaxial Cable), usually referred to as leaky cable or leaky cable. Its structure is basically the same as that of ordinary coaxial cable. The conductor consists of three parts. While the electromagnetic wave is transmitted longitudinally in the leaky cable, the electromagnetic wave is radiated to the outside through the slot; the external electromagnetic field can also be induced into the inside of the leaky cable through the slot and transmitted to the receiving end. When testing whether the leaky cable of the multi-system platform (POI, Pointof Interface) is installed correctly and whether there is an open circuit in the existing technology, one of the me...

AI Technical Summary

Problems solved by technology

However, the existing testing technology has the following defects: when it is necessary to test whether there is a problem with the insertion loss of the leaky cable when the POI leaky cable device is used, the heavy equipment must be manually carried, and the input and output ports of the POI leaky cable device need to be disconnected for testing. device, causing a communication interruption

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