CN107623592B

CN107623592B - Detection system and method for rail transit vehicle-ground communication system

Info

Publication number: CN107623592B
Application number: CN201710774496.1A
Authority: CN
Inventors: 刘波; 郜春海
Original assignee: Traffic Control Technology TCT Co Ltd
Current assignee: Traffic Control Technology TCT Co Ltd
Priority date: 2017-08-31
Filing date: 2017-08-31
Publication date: 2020-09-01
Anticipated expiration: 2037-08-31
Also published as: CN107623592A

Abstract

The invention provides a detection system and a method of a rail transit vehicle-ground communication system, which comprises the following steps: the system comprises an LTE-M vehicle-mounted detection device and an LTE-M ground detection device; the LTE-M vehicle-mounted detection device acquires vehicle position information acquired by a VOBC subsystem in real time, acquires working state information of vehicle-mounted equipment and RSRP and SINR values of a ground LTE-M network at preset intervals, judges whether the working state information and the RSRP and SINR values are within a preset normal range, marks the working state information and the RSRP and SINR values are abnormal if the working state information and the RSRP and SINR values are abnormal, and sends current time and date, abnormal judgment results, the RSRP and SINR values, the vehicle position information and the working state information to the LTE-M ground detection device; the LTE-M ground detection device analyzes the data packet, judges the severity of deviation of the RSRP and the SINR values from the normal values according to preset rules, and displays the positions/sections of the abnormal RSRP and the SINR values and the judged severity according to the vehicle position information and the CBTC line electronic map system. The position of the ground LTE-M network with the problem can be quickly and accurately positioned when the RSRP and the SINR values are abnormal, and the efficiency is high.

Description

Detection system and method for rail transit vehicle-ground communication system

Technical Field

The invention belongs to the technical field of rail transit, and particularly relates to a detection system and a detection method for a rail transit vehicle-ground communication system.

Background

At present, according to the vehicle-mounted interface specification of an LTE-M (urban rail transit vehicle-ground integrated communication system) and a CBTC (communication-based train control) system, the following requirements are met: (1) the LTE-M vehicle-mounted equipment can provide working state information required by the CBTC vehicle-mounted equipment so as to cooperate with the CBTC vehicle-mounted equipment to complete train self-checking. (2) The LTE-M in-vehicle apparatus should transmit received RSRP (reference signal received power) and SINR (signal to interference and noise ratio) values of the terrestrial LTE-M network to the CBTC in-vehicle apparatus or the maintenance management apparatus. (3) The interface of the LTE-M vehicle-mounted equipment and the CBTC vehicle-mounted equipment has a data recording function, all data transmitted and received through the LTE-M vehicle-mounted equipment are recorded, and the recording time is over 144 hours. Whether the ground LTE-M network coverage is good or not can be quickly judged according to the RSRP value and the SINR value.

However, the existing CBTC vehicle-mounted device may display or record RSRP and SINR values of the ground LTE-M network received by the LTE-M vehicle-mounted device, but may not actively report whether the RSRP and SINR values are normal, and lacks a self-checking function, and it is impossible to display where the RSRP and SINR values are on the track when data playback analysis is performed after a problem is found, and it is difficult to quickly locate the accurate position of the ground LTE-M network where the problem is found when the RSRP and SINR values are abnormal, and the difficulty in detecting the problem is increased by the personnel polling, and the efficiency is low.

Therefore, how to quickly and accurately locate the position of the problematic ground LTE-M network when the RSRP and SINR values are abnormal becomes a technical problem to be solved at present.

Disclosure of Invention

In view of this, embodiments of the present invention are directed to provide a detection system and method for a rail transit vehicle-ground communication system, which can quickly and accurately locate a problematic ground LTE-M network when RSRP and SINR values are abnormal, and improve efficiency of finding and locating problems.

In a first aspect, an embodiment of the present invention provides a detection system for a rail transit vehicle-ground communication system, including: the system comprises an LTE-M vehicle-mounted detection device in a VOBC subsystem and an LTE-M ground detection device arranged in a ground maintenance center;

the LTE-M vehicle-mounted detection device comprises: the system comprises a vehicle-mounted data acquisition module, a vehicle-mounted data processing module and a vehicle-mounted data sending module;

the LTE-M ground detection device comprises: the system comprises a ground data receiving module, a ground data processing module and a ground data display module;

the vehicle-mounted data acquisition module is used for acquiring vehicle position information acquired by the VOBC subsystem in real time in the running process of a train, and acquiring working state information of the LTE-M vehicle-mounted equipment and RSRP and SINR values of a ground LTE-M network received by the LTE-M vehicle-mounted equipment at preset intervals;

the vehicle-mounted data processing module is used for judging whether the RSRP and the SINR values are within a preset normal range or not, if not, marking the RSRP and the SINR values as abnormal, and packaging the current time and date, the judgment result marked as abnormal, the RSRP and the SINR values, the vehicle position information and the working state information of the LTE-M vehicle-mounted equipment into a data packet;

the vehicle-mounted data sending module is used for sending the data packet to the ground data receiving module;

the ground data processing module is used for analyzing the data packet received by the ground data receiving module, judging the severity of deviation of the RSRP and the SINR values from normal values according to preset rules, and displaying the positions/sections of the RSRP and the SINR values marked as abnormal and the severity obtained through judgment through the ground data display module by combining a CBTC (communication based train control) line electronic map system according to the vehicle position information.

Optionally, the LTE-M vehicle-mounted detection apparatus further includes:

and the vehicle-mounted data storage module is used for storing the data packet output by the vehicle-mounted data processing module in a storage unit.

Optionally, the LTE-M ground detection apparatus further includes:

and the ground data storage module is used for locally storing the received data packet.

Optionally, the severity level includes two levels of warning and severity, and accordingly, the preset rule includes:

if the deviation of the RSRP and the SINR values from the normal values is smaller than a preset threshold value, the severity of the deviation of the RSRP and the SINR values from the normal values is a warning;

if the deviation of the RSRP and the SINR values from the normal values is larger than or equal to the preset threshold value, the deviation of the RSRP and the SINR values from the normal values is serious.

Optionally, the LTE-M ground detection apparatus further includes:

and the ground data sending module is used for sending the positions/sections of the RSRP and SINR values marked as abnormal and the severity obtained by judgment to a ground control center for displaying if the severity of the RSRP and SINR values deviating from the normal values is severe.

In a second aspect, an embodiment of the present invention provides a detection method for a rail transit vehicle-ground communication system, where the detection system based on the rail transit vehicle-ground communication system includes:

the method comprises the steps that an LTE-M vehicle-mounted detection device in a VOBC subsystem of a vehicle-mounted controller obtains vehicle position information collected by the VOBC subsystem in real time in the running process of a train, and obtains working state information of LTE-M vehicle-mounted equipment and RSRP and SINR values of a ground LTE-M network received by the LTE-M vehicle-mounted equipment at intervals of a preset distance;

the LTE-M vehicle-mounted detection device judges whether the RSRP and the SINR values are both in a preset normal range, and if not, the RSRP and the SINR values are marked as abnormal;

the LTE-M vehicle-mounted detection device packs data of the current time and date, the judgment result marked as abnormal, the RSRP and SINR values, the vehicle position information and the working state information of the LTE-M vehicle-mounted equipment and sends the data to an LTE-M ground detection device arranged in a ground maintenance center;

the LTE-M ground detection device analyzes the received data packet, judges the severity of deviation of the RSRP and the SINR values from normal values according to preset rules, and displays the positions or sections of the RSRP and the SINR values marked as abnormal and the severity obtained through judgment by combining a CBTC line electronic map system according to the vehicle position information.

Optionally, the method further comprises:

and the LTE-M vehicle-mounted detection device stores a data packet obtained after data packaging in a storage unit.

Optionally, the method further comprises:

and the LTE-M ground detection device locally stores the received data packet.

Optionally, the method further comprises:

and if the severity of the deviation of the RSRP and the SINR values from the normal values is serious, the positions/sections of the RSRP and the SINR values marked as abnormal and the severity obtained by judgment are sent to a ground control center for displaying.

According to the technical scheme, the detection system and the detection method of the rail transit vehicle-ground communication system provided by the embodiment of the invention have the advantages that the LTE-M vehicle-mounted detection device is added in the VOBC (vehicle-mounted controller) subsystem, and the LTE-M ground detection device is installed in the ground maintenance center, so that the position of the ground LTE-M network with the problem can be quickly and accurately positioned when the RSRP and SINR values are abnormal, manual routing inspection and positioning are replaced, and the efficiency of finding and positioning the problem is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a detection system of a rail transit vehicle-ground communication system according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a detection system of another rail transit vehicle-ground communication system provided by an embodiment of the invention;

fig. 3 is a flowchart illustrating a detection method of a rail transit vehicle-ground communication system according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a schematic structural diagram illustrating a detection system of a rail transit vehicle-ground communication system according to an embodiment of the present invention. As shown in fig. 1, the detection system of the rail transit vehicle-ground communication system according to the embodiment of the present invention includes: the system comprises an LTE-M vehicle-mounted detection device 01 in a VOBC subsystem and an LTE-M ground detection device 02 arranged in a ground maintenance center;

the on-vehicle detection device 01 of LTE-M includes: the system comprises a vehicle-mounted data acquisition module 011, a vehicle-mounted data processing module 012 and a vehicle-mounted data sending module 013;

the LTE-M ground detection apparatus 02 includes: a ground data receiving module 021, a ground data processing module 022 and a ground data display module 023;

the vehicle-mounted data acquisition module 011 is used for acquiring vehicle position information acquired by the VOBC subsystem in real time in the running process of a train, and acquiring working state information of the LTE-M vehicle-mounted equipment and RSRP and SINR values of a ground LTE-M network received by the LTE-M vehicle-mounted equipment at preset intervals;

the vehicle-mounted data processing module 012 is configured to determine whether the RSRP and SINR values are both within a preset normal range, and if not, mark the RSRP and SINR values as abnormal, and pack the current time and date, the determination result marked as abnormal, the RSRP and SINR values, the vehicle location information, and the operating state information of the LTE-M vehicle-mounted device into a data packet;

the vehicle-mounted data sending module 013 is configured to send the data packet to the ground data receiving module 021;

the ground data processing module 022 is configured to analyze the data packet received by the ground data receiving module 021, determine the severity of the RSRP and SINR values deviating from the normal values according to a preset rule, and display the positions/sections of the RSRP and SINR values marked as abnormal and the determined severity through the ground data display module 023 by combining the CBTC line electronic map system according to the vehicle location information.

Specifically, the ground data display module 023 may be configured to display an electronic map corresponding to the position or the section of the RSRP and SINR value marked as abnormal and the severity obtained by the judgment on a screen of the ground maintenance center, so as to prompt a worker of the ground maintenance center to find and locate the problem in time and perform corresponding subsequent processing.

In a specific application, the preset distance may be configured in advance according to a user requirement, and is generally collected in a meter unit.

In a specific application, both the preset normal range of the RSRP value of the ground LTE-M network and the preset normal range of the SINR value of the ground LTE-M network may be preset according to an actual situation, which is not limited in this embodiment.

In a specific application, the vehicle-mounted data sending module 013 sends the data packet to the ground data receiving module 021 through a vehicle-ground communication network and a ground backbone network.

In particular applications, the severity may include: the two levels of warning and severity, respectively, may include:

Specifically, for example, the preset threshold may be set to 10%, which is not limited in this embodiment, and the preset threshold may be specifically configured and adjusted according to an actual situation.

It can be understood that, in the embodiment, by combining the position information of the VOBC subsystem, the RSRP and SINR value abnormal positions or sections of the terrestrial LTE-M network can be accurately marked.

According to the detection system of the rail transit vehicle-ground communication system, the LTE-M vehicle-mounted detection device is added in the VOBC subsystem, and the LTE-M ground detection device is installed in the ground maintenance center, so that the position of the ground LTE-M network with problems can be quickly and accurately positioned when the RSRP and SINR values are abnormal, manual routing inspection and positioning are replaced, and the efficiency of finding and positioning the problems is improved.

Further, as shown in fig. 2, the LTE-M vehicle-mounted detection apparatus 01 according to this embodiment may further include:

and an on-vehicle data storage module 014 configured to store the data packet output by the on-vehicle data processing module 012 in a storage unit.

Specifically, the storage unit may adopt a cyclic storage manner to satisfy the number of the storage vehicles running for more than 144 hours.

It is understood that, in the present embodiment, the on-board data storage module 014 is used to store the data packet output by the on-board data processing module 012 in the storage unit, which can facilitate the subsequent analysis and use of the stored data packet.

Further, as shown in fig. 2, the LTE-M ground detection apparatus 02 according to this embodiment may further include:

and the ground data storage module 024 is used for locally storing the received data packet.

It can be understood that the present embodiment utilizes the ground data storage module 024 to locally store the received (abnormal) data packet, which can facilitate subsequent analysis and viewing.

and the ground data sending module 025 is configured to send the position/section of the RSRP and SINR value marked as abnormal and the determined severity to the ground control center for display if the severity of the RSRP and SINR values deviating from the normal values is severe.

In a specific application, the ground data sending module 025 sends the positions/sections of the RSRP and SINR values marked as abnormal and the severity obtained by the judgment to a ground control center for display through a ground backbone network.

It can be understood that the ground control center can display the electronic map corresponding to the positions or sections of the RSRP and SINR values marked as abnormal and the determined severity on a screen of the ground control center, so as to prompt a worker of the ground control center to find and locate a problem in time and perform corresponding subsequent processing.

The detection system of the rail transit vehicle-ground communication system can quickly and accurately locate the position of the ground LTE-M network with problems when the RSRP and the SINR values are abnormal, replaces manual inspection and location, and improves the efficiency of finding and locating the problems. The embodiment combines a CBTC system maintenance center, an electronic map system and a control center, and can send the problem position and the severity to the visual screen of each center, so that related personnel can find and know the problem condition in time, and the problem condition can be accurately dealt with.

Fig. 3 shows a detection method of a rail transit vehicle-ground communication system according to an embodiment of the present invention, and based on the detection system of the rail transit vehicle-ground communication system, as shown in fig. 3, the detection method of the rail transit vehicle-ground communication system according to the embodiment includes:

s1, a long term evolution-M (LTE-M) vehicle-mounted detection device in a VOBC (vehicle-mounted controller) subsystem acquires vehicle position information acquired by the VOBC subsystem in real time in the running process of a train, and acquires working state information of LTE-M vehicle-mounted equipment and RSRP (reference signal received power) and SINR (signal to interference ratio) values of a ground LTE-M network received by the LTE-M vehicle-mounted equipment at preset intervals.

And S2, the LTE-M vehicle-mounted detection device judges whether the RSRP and the SINR values are both in a preset normal range, and if not, the RSRP and the SINR values are marked as abnormal.

And S3, the LTE-M vehicle-mounted detection device packages data of the current time and date, the judgment result marked as abnormal, the RSRP and SINR values, the vehicle position information and the working state information of the LTE-M vehicle-mounted equipment and sends the packaged data to the LTE-M ground detection device installed in the ground maintenance center.

In specific application, the step is to transmit a data packet obtained by data packaging to an LTE-M ground detection device installed in a ground maintenance center through a vehicle-ground communication network and a ground backbone network.

And S4, the LTE-M ground detection device analyzes the received data packet, judges the severity of the deviation of the RSRP and the SINR values from the normal values according to a preset rule, and displays the positions or sections of the RSRP and the SINR values marked as abnormal and the judged severity by combining a CBTC line electronic map system according to the vehicle position information.

Specifically, according to the vehicle position information, in combination with a CBTC line electronic map system, the electronic map corresponding to the position or section marked with the abnormal RSRP and SINR value and the severity obtained by the judgment are displayed on a screen of the ground maintenance center, so as to prompt a worker of the ground maintenance center to find and locate the problem in time and perform corresponding subsequent processing.

The detection method of the rail transit vehicle-ground communication system is based on the detection system of the rail transit vehicle-ground communication system, an LTE-M vehicle-mounted detection device is added in a VOBC subsystem, the LTE-M ground detection device is installed in a ground maintenance center, vehicle position information acquired by the VOBC subsystem is acquired in real time in the running process of a train through the LTE-M vehicle-mounted detection device in the VOBC subsystem, working state information of LTE-M vehicle-mounted equipment and RSRP and SINR values of a ground LTE-M network received by the LTE-M vehicle-mounted equipment are acquired at preset intervals, whether the RSRP and SINR values are both in a preset normal range is judged, if not, the RSRP and SINR values are marked as abnormal, and the current time and date, the judgment result marked as abnormal, the RSRP and SINR values, the vehicle position information and the working state information of the LTE-M vehicle-mounted equipment are subjected to data packing and sent to installation The LTE-M ground detection device analyzes the received data packet, judges the severity of deviation of the RSRP and the SINR values from normal values according to preset rules, and displays the positions or sections of the RSRP and the SINR values marked as abnormal and the severity obtained by judgment by combining a CBTC line electronic map system according to the vehicle position information, so that the position of the ground LTE-M network with problems can be quickly and accurately positioned when the RSRP and the SINR values are abnormal, manual polling and positioning are replaced, and the efficiency of finding and positioning problems is improved.

Further, the method of this embodiment may further include:

It can be understood that, the LTE-M vehicle-mounted detection apparatus of this embodiment stores the data packet obtained by data packaging in the storage unit, which may facilitate subsequent analysis and use of the stored data packet.

Further, the method of this embodiment may further include:

and the LTE-M ground detection device locally stores the received data packet.

It can be understood that the LTE-M ground detection apparatus of this embodiment locally stores the received (abnormal) data packet, which can facilitate subsequent analysis and viewing.

Further, the method of this embodiment may further include:

In a specific application, the step is to send the positions/sections of the RSRP and SINR values marked as abnormal and the severity obtained by the judgment to a ground control center for display through a ground backbone network.

The detection method of the rail transit vehicle-ground communication system can quickly and accurately locate the position of the ground LTE-M network with problems when the RSRP and SINR values are abnormal, replaces manual inspection and location, and improves the efficiency of finding and locating the problems. The embodiment combines a CBTC system maintenance center, an electronic map system and a control center, and can send the problem position and the severity to the visual screen of each center, so that related personnel can find and know the problem condition in time, and the problem condition can be accurately dealt with.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

The above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A detection system for a rail transit vehicle-to-ground communication system, comprising: the system comprises an LTE-M vehicle-mounted detection device in a VOBC subsystem and an LTE-M ground detection device arranged in a ground maintenance center;

2. The system of claim 1, wherein the LTE-M vehicle detection apparatus further comprises:

3. The system of claim 1, wherein the LTE-M ground detection apparatus further comprises:

4. The system of claim 1, wherein the severity level comprises two levels of warning and severity, and accordingly, the preset rules comprise:

5. The system of claim 4, wherein the LTE-M ground detection apparatus further comprises:

6. A detection method of a rail transit vehicle-ground communication system based on the detection system of the rail transit vehicle-ground communication system according to any one of claims 1 to 5, comprising:

7. The method of claim 6, further comprising:

8. The method of claim 6, further comprising:

and the LTE-M ground detection device locally stores the received data packet.

9. The method of claim 6, wherein the severity level comprises two levels of warning and severity, and the preset rules comprise:

10. The method of claim 9, further comprising: