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A kind of cbtc signal warning method in lte-m communication network

A communication network and signal technology, applied in the field of rail transit, can solve problems such as inability to locate accurately and quickly, and inability to monitor the communication performance of the LTE-M system, and achieve the effect of improving efficiency

Active Publication Date: 2021-05-18
WUHAN HONGXIN TECH DEV CO LTD
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Problems solved by technology

[0003] However, the current LTE-M system will only transmit the online status of the ground equipment to the CBTC system monitoring equipment, and will not report whether the communication interruption time exceeds 2.4 seconds, and the CBTC system monitoring equipment cannot monitor the communication performance of the LTE-M system
When CBTC signal loss occurs, it is impossible to accurately and quickly locate whether it is caused by the interruption of LTE-M system communication

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  • A kind of cbtc signal warning method in lte-m communication network
  • A kind of cbtc signal warning method in lte-m communication network
  • A kind of cbtc signal warning method in lte-m communication network

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[0025] The technical solutions of the present invention are described in detail below in conjunction with the accompanying drawings and embodiments, and details for a comprehensive understanding of the embodiments are provided. However, it will be understood by those skilled in the art that the present invention may be practiced without some of the details shown. In addition, some well-known structures or functions are not described in detail, so as not to obscure the related description of the embodiments of the present invention.

[0026] figure 1 It is a schematic diagram of the LTE-M data service interconnection and interworking architecture. The entire architecture consists of three parts: network management, LTE-M system, and train operation control system. The network management monitors the equipment in the LTE-M system in real time; the LTE-M system consists of two independent LTE-M networks, which are divided into red network and blue network. Each LTE-M network c...

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Abstract

The technical solution adopted in the present invention provides a CBTC signal alarm method in an LTE-M communication network. The core network analyzes the CBTC data interruption time of each vehicle terminal in real time, and when the problem that the CBTC signal interruption exceeds a specified threshold occurs, the CBTC is reported to the network management Signal interruption alarm: The network management locates the problem vehicle through the CBTC signal interruption alarm reported on the core network, and judges whether to report the EB serious alarm based on the CBTC signal interruption alarm of the data terminals at both ends of the problem vehicle within the timeout period, and the EB is emergency braking. The invention can quickly and effectively monitor the CBTC signals of all vehicles, replace manual inspection and positioning, and greatly improve the efficiency of finding and locating problems.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a CBTC signal warning method in an LTE-M communication network. Background technique [0002] At present, according to the LTE-M (Long Term Metro Evolution System) carrying CBTC (Communication-Based Train Control System) service and interface specifications, it is required: (1) In the case of a single network, the communication interruption time of the LTE-M system should not exceed the specified threshold of 2.4 seconds The probability is not less than 99.98%. (2) The LTE-M network should transmit the working status of the ground equipment to the CBTC system monitoring equipment to facilitate the maintenance of the CBTC system. (3) The redundant backup function requires a set of train access units to be installed at both ends of each train, respectively connected to two independent LTE-M networks, so as to ensure that there are two physically independent data c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04W4/42
CPCH04L41/0631H04L41/0677H04W4/42
Inventor 南亮王鑫鹏
Owner WUHAN HONGXIN TECH DEV CO LTD