Method and system for locating failure of subway indoor distribution system

Abstract

The invention discloses a method for locating a failure of a subway indoor distribution system. The method includes the steps that S1, a subway is subjected to geographical rasterization processing along a line; S2, a position fingerprint database of one-to-one mapping between geographical rasters and signal features of the indoor distribution system is established; S3, MR records reported periodically by a user terminal are collected and matched with the position fingerprint database; S4, the number of the matched MR records in the geographical rasters is counted; S5, according to the geographical rasters, the geographical position of the failure of the subway indoor distribution system is located. The invention further discloses a system for locating the failure of the subway indoor distribution system. Through measurement, a covering level feature fingerprint of each geographical raster in the subway is obtained to realize synchronous generation and mapping of the geographical rasters and the position fingerprint database, MR original files with the minimum time granularity are collected to realize relative and real-time localization for the failure of the subway indoor distribution system, and the failure of the subway indoor distribution system is accurately located.

Description

technical field [0001] The invention relates to the field of mobile communication indoor distribution systems, in particular to a fault location method and system for a subway indoor distribution system. Background technique [0002] The subway has become the most common way of public travel in cities, and users often use the mobile Internet to fill their travel time. Therefore, it is becoming more and more important to ensure the perception of subway users. However, at present, faults in the indoor distribution system of subways are mainly found through "passive response" to customer complaints, which has a large lag, and the fault location is cumbersome, heavy workload, and low positioning accuracy. [0003] The indoor distribution system of mobile communication is mainly composed of active equipment and passive distribution system. The passive distribution system is composed of feeders, passive devices and antennas to realize the transmission and coverage of radio frequen...

AI Technical Summary

Problems solved by technology

[0013] (1) The original indoor distribution system involves changes, and an RFID tag system needs to be added

[0014] (2) Only the antenna feeder failure of the indoor distribution system can be monitored, but the source failure of the indoor distribution system cannot be monitored

[0015] (3) It is only suitable for ceiling antennas or omnidirectional antennas, and does not support leaky cables, so the existing methods are not suitable for indoor distribution systems that require a large number of leaky cables, such as subways and railway tunnels

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