Fault location method and system for subway indoor distribution system
An indoor distribution system and fault location technology, applied in the field of mobile communication indoor distribution system, can solve problems such as not supporting leaking cables, unable to monitor source faults of indoor distribution system, etc., and achieve the effect of precise positioning
Inactive Publication Date: 2021-05-28
中国联合网络通信有限公司湖北省分公司
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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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[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0036] MR (Measurement Report) is a measurement report, which is a measurement report reported by the user terminal to the network during the execution of services, and can reflect the real situation of the current wireless environment of the user terminal. The reporting period of the periodic MR is generally set to 5 seconds. Based on this, the present invention utilizes the collected MR original files to realize real-time and precise positioning of the fault area of the subway indoor distribution system, thereby improving user perception and operation efficiency. The fault location method and system of the subway indoor distribution system provided by the present invention do not rely on third-party RFID tag information, can avoid making any changes to the original indoor distribution system, and can monitor the antenna feeder and s...
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The invention discloses a method for locating a fault in an indoor distribution system of a subway, comprising: Step S1), performing geographic grid processing along the subway line; and Step S2), establishing a location fingerprint mapped one by one between the geographic grid and the signal characteristics of the indoor distribution system library; step S3), collect the MR records periodically reported by the user terminal and match them with the location fingerprint library; step S4), count the number of matched MR records in the geographic grid; step S5), locate according to the geographic grid Geographical location of faults in subway indoor distribution systems. The invention also discloses a fault location system for the subway indoor distribution system. The present invention adopts the coverage level characteristic fingerprint of each geographic grid in the subway to realize the synchronous generation and mapping of the geographic grid and the location fingerprint database, and collects the MR original file with the minimum time granularity to realize the relative real-time positioning of the fault of the indoor distribution system of the subway , to realize the precise location of faults in the subway indoor distribution system.
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 consists of feeders, passive devices, and antennas to realize the transmission and coverage of radio frequency...
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IPC IPC(8): H04L12/24H04W24/04
CPCH04L41/0677H04W24/04
Inventor 滕祖伟周杰华王勇肖波
Owner 中国联合网络通信有限公司湖北省分公司