Wireless communication quality detection device and method for TACS train control system

Abstract

The present invention provides a wireless communication quality detection device for a TACS train control system, comprising: at least one server, the server comprising: a ping command sending and receiving module, which periodically wirelessly sends first and second ping commands to an onboard TAU and an onboard signal host, respectively, over multiple redundant networks; a basic event generation module, which generates corresponding basic events based on the delays of the onboard TAU and the onboard signal host in responding to the first and second ping commands, as well as a preset delay reference value; the basic events including poor network quality, communication anomalies, and communication interruption events from the server to the onboard TAU / onboard signal host over the corresponding network; and a fault diagnosis module, which periodically polls the communication anomaly events and generates a communication fault diagnosis result based on all communication anomaly events currently polled. The present invention also provides a wireless communication quality detection method for a TACS train control system.

Description

Technical Field

[0001] The present invention relates to the technical field of train control system communications, and in particular to a wireless communication quality detection device and method for a TACS train control system. Background Art

[0002] TACS, short for Train Autonomous Circumambulate System, is an autonomous train operation system based on vehicle-to-vehicle communication. With its flexible management of trackside resources, reduced subway construction costs, and fully automated unmanned driving capabilities, TACS has become the next generation of train control technology in the rail transit industry.

[0003] Since the TACS train control technology based on vehicle-to-vehicle communication requires a stable and reliable wireless network technology to support it before it can be used, the current mainstream TACS train control system manufacturers all use LTE-M (Long term evolution-metro urban rail transit vehicle-ground integrated communication system) technology to achieve vehicle-ground-vehicle communication. Therefore, the quality of LTE (Long term evolution) wireless communication and whether its related ground and on-board communication equipment operate normally are key factors affecting whether the entire TACS train control system can operate normally and stably. Once the wireless communication equipment fails or the communication quality deteriorates, the TACS train control system will be degraded, which will in turn affect train operations.

[0004] Currently, there is no precedent for detecting and analyzing wireless communication quality and equipment status in the TACS train control system. Therefore, it is necessary to design and invent a monitoring device and method to solve this problem. Summary of the Invention

[0005] The purpose of the present invention is to provide a wireless communication quality detection device and method for a TACS train control system, which can accurately locate the location and cause of wireless communication faults in the TACS train control system, greatly improve the troubleshooting efficiency, and reduce the TACS system service delay caused by faults.

[0006] In order to achieve the above object, the present invention provides a wireless communication quality detection device for a TACS train control system, comprising: at least one server, wherein the server comprises:

[0007] A ping command sending and receiving module, which periodically sends a first ping command and a second ping command to the vehicle-mounted TAU and the vehicle-mounted signal host respectively through wireless signals under multiple redundant networks, and receives response messages from the vehicle-mounted TAU and the vehicle-mounted signal host to the first ping command and the second ping command;

[0008] a basic event generation module, which generates corresponding basic events based on the delay of the vehicle-mounted TAU and the vehicle-mounted signal host in responding to the first ping command and the second ping command, as well as a preset delay reference value; the basic events include poor network quality, communication anomaly, and communication interruption events between the server and the vehicle-mounted TAU / vehicle signal host under the corresponding network;

[0009] The fault diagnosis module periodically polls the abnormal communication events and generates a TACS train control system wireless communication fault diagnosis result based on all abnormal communication events polled at the current moment.

[0010] Optionally, the fault diagnosis module generates a corresponding logic code based on a set program and all communication abnormality events polled at the current moment; the fault diagnosis module also stores a logic table, which contains the logic code and the TACS train control system wireless communication fault cause corresponding to the logic code; the fault diagnosis module obtains the current TACS train control system wireless communication fault cause by querying the logic table.

[0011] Optionally, the detection device includes two servers, both of which are installed with dual-machine arbitration software; one of the two servers is selected as the working main server and the other server is selected as the non-working backup server through the dual-machine arbitration software; when the main server fails, the backup server works.

[0012] Optionally, the server further includes an event log generation module for generating a basic event log; the basic event log includes: network name, first ping command generation time, delay of the on-board TAU responding to the first ping command, second ping command generation time, delay of the on-board signal host responding to the second ping command, basic event generation time, and one or more causes of wireless communication failure of the TACS train control system.

[0013] Optionally, the server further includes an ATS system access module for obtaining the train location information sent by the ATS system, and storing the train location information corresponding to the basic event generation time in the corresponding basic event log.

[0014] Optionally, the wireless communication quality detection device for the TACS train control system further includes a shared storage device, which is connected to the server via Ethernet and is used to store basic event logs.

[0015] Optionally, the wireless communication quality detection device for the TACS train control system also includes a human-computer interaction terminal, which is connected to the server via Ethernet communication and accesses a shared storage device through the server; the human-computer interaction terminal is used to query, delete, and count basic event logs, and visually display the corresponding query, deletion, and statistical results.

[0016] Optionally, the multiple redundant networks include two networks, namely the first network and the second network; the server is connected to the on-board TAU and the on-board signal host through the first vehicle control switch and the first signal switch of the first network by wireless signals; the server is connected to the on-board TAU and the on-board signal host through the second vehicle control switch and the second signal switch of the second network by wireless signals.

[0017] Optionally, the server includes five interfaces, namely: a first vehicle control switch interface, a first signal switch interface, a second vehicle control switch interface, a second signal switch interface, and a data interface;

[0018] The server is connected to the first vehicle control switch and the first signal switch via wireless signals of the first vehicle control switch interface and the first signal switch interface;

[0019] The server is connected to the second vehicle control switch and the second signal switch via the second vehicle control switch interface and the second signal switch interface via wireless signals;

[0020] Data transmission between the server and the shared storage device is achieved through the data interface.

[0021] Optionally, the delay reference value is a configurable parameter.

[0022] Optionally, the logic code is a binary code.

[0023] Optionally, the first network and the second network are LTE networks.

[0024] The present invention further provides a method for detecting the quality of wireless communication for a TACS train control system, which is implemented using the device for detecting the quality of wireless communication for a TACS train control system according to the present invention, and comprises the following steps:

[0025] S1. The server periodically sends a first ping command and a second ping command to the vehicle-mounted TAU and the vehicle-mounted signal host wirelessly through multiple redundant networks;

[0026] S2. A basic event generation module generates corresponding basic events based on the latency and latency reference values ​​of the vehicle TAU and vehicle signal host in responding to the first and second ping commands; the basic events include poor network quality, abnormal communication, and communication interruption events between the server and the vehicle TAU / vehicle signal host in the corresponding network.

[0027] S3. The fault diagnosis module periodically polls the abnormal communication events and generates a TACS train control system wireless communication fault diagnosis result based on all abnormal communication events polled at the current moment.

[0028] Optionally, step S3 includes:

[0029] The fault diagnosis module generates corresponding logic codes based on the set program and all communication abnormal events polled at the current moment, and queries the logic table based on the logic code to obtain the cause of the current TACS train control system wireless communication fault.

[0030] Optionally, the wireless communication quality detection method for the TACS train control system further includes:

[0031] Step S4: query, delete, and count basic event logs through the human-computer interaction terminal, and visually display the corresponding query, deletion, and statistical results.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1) Originality and promotion: The TACS train control system belongs to the cutting-edge technology field of the rail transit signal industry and is currently rarely used throughout the country and even the world. The wireless communication quality detection device and method for the TACS train control system of the present invention make up for the shortcomings of the TACS system in terms of vehicle-to-ground vehicle communication quality detection means. The present invention has the ability to analyze faults at the junction of the TACS train control signal system and the wireless communication system, providing technical support for the debugging and commissioning of the TACS system. It plays an important role in troubleshooting vehicle-to-ground wireless communication faults and problems in the debugging stage before commissioning. After commissioning, it will also become an important auxiliary equipment for signal system maintenance and support personnel. Its originality and promotion are of great significance.

[0034] 2) Compatibility, scalability, flexibility, and stability: Because the present invention does not rely on actual on-site wireless communication equipment, there are no compatibility issues. Furthermore, the detection device is highly flexible and can be deployed at a line maintenance center or a station, connected to the nearest train control network switch to perform relevant detection functions. It can also be configured at any time to expand the range of monitored trains. It also features dual-machine redundancy and excellent stability.

[0035] 3) Simple and convenient application and maintenance, good user experience: The detection device records the detection results and process in detail in the form of log files, and can provide analysis reports in the form of human-computer interface, which is simple and convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are one embodiment of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort:

[0037] Figure 1 Schematic diagram of the structure of the detection device of the present invention;

[0038] Figure 2 This is a schematic diagram of the detection device of the present invention sending a first ping command and a second ping command to the vehicle-mounted TAU and the vehicle-mounted signal host in a redundant network;

[0039] Figure 3 A schematic diagram of the server structure of the present invention;

[0040] Figure 4 For the present invention, a basic event schematic diagram is generated;

[0041] Figure 5 This is a flow chart of the wireless communication quality detection method of the present invention;

[0042] In the figure: 101, wireless communication quality detection device;

[0043] 1. Server; 11. Ping command sending and receiving module; 12. Basic event generation module; 13. Fault diagnosis module; 14. Event log generation module; 15. ATS system access module;

[0044] 2. Shared storage device; 3. Human-computer interaction terminal. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] It will be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0047] It should also be understood that the terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0048] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0049] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0050] In addition, in the description of the present application, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0051] Currently, there is no precedent for detecting and analyzing wireless communication quality and equipment status in TACS train control systems. Therefore, a detection device is urgently needed that can simultaneously meet the needs of wireless communication quality detection and fault analysis, and on-board equipment status detection and fault analysis in TACS train control systems. The detection device must meet the following requirements:

[0052] 1) Ability to analyze and locate faults at the junction of signal systems and wireless communication systems

[0053] Currently, in the operation of the TACS train control system, vehicle-ground-vehicle communications involve many devices such as on-board signal hosts, on-board TAUs (on-board access terminals), antennas, LTE ground base stations, etc. These devices are often provided by different suppliers. Usually, the signal system has an independent maintenance support system that can monitor the operating status of on-board equipment and collect the operating logs of the on-board signal hosts. LTE has an independent network management system that can monitor the operating status of LTE-related equipment. Once a fault occurs, it is necessary to manually check different maintenance terminals and analyze maintenance logs from different sources, which is time-consuming and labor-intensive, and will also increase the time to handle faults and repair problems, thereby affecting operational efficiency. Once the cause of the fault can be accurately located as a device in the signal system or the wireless communication system, the troubleshooting efficiency will be greatly improved and the fault delay will be reduced.

[0054] 2) Good compatibility, easy scalability and high availability

[0055] The detection device performing wireless communication quality testing must demonstrate excellent compatibility and should not rely on the protocol support of the device being tested. It must also support new trains and their associated communication equipment. Furthermore, as a device that monitors the operation of signaling and wireless communication systems in real time, it also needs to have a redundant design to improve availability.

[0056] 3) It must be simple and easy to use, and it must automatically summarize and analyze the logs and data generated during the detection and analysis process, and provide simple and easy-to-use retrieval analysis and analysis result visualization functions.

[0057] 4) It needs to be able to interface with the ATS system and receive train location information in real time to facilitate accurate positioning when analyzing faults.

[0058] The present invention provides a wireless communication quality detection device 101 for a TACS train control system. Figure 1 As shown, the detection device includes: at least one server 1, a human-computer interaction terminal 3, and a shared storage device 2.

[0059] In this embodiment, the detection device includes two servers 1, both of which are installed with dual-machine arbitration software; the dual-machine arbitration software selects one of the two servers 1 as the working main server and the other server 1 as the non-working backup server; when the main server fails, the backup server works.

[0060] The server 1 connects the vehicle TAU and the vehicle signal host via multiple redundant network wireless signals. In this embodiment, the multiple redundant networks include two networks, namely a first network and a second network. The first network and the second network are LTE networks.

[0061] like Figure 1 、 Figure 2 As shown, server 1 is connected to the vehicle TAU and vehicle signal host via wireless signals of the first vehicle control switch and the first signal switch of the first network. Server 1 is connected to the vehicle TAU and vehicle signal host via wireless signals of the second vehicle control switch and the second signal switch of the second network.

[0062] In this embodiment, the hardware of server 1 adopts an industrial computer. Each industrial computer is equipped with at least 5 RJ45 network ports (also called 5 interfaces) for accessing mutually isolated signal professional networks. The 5 interfaces are: the first vehicle control switch interface, the first signal switch interface, the second vehicle control switch interface, the second signal switch interface, and the data interface.

[0063] Server 1 is wirelessly connected to the first vehicle control switch and the first signal switch via the first vehicle control switch interface and the first signal switch interface. Server 1 is wirelessly connected to the second vehicle control switch and the second signal switch via the second vehicle control switch interface and the second signal switch interface. The data interface is used to facilitate data transmission between server 1 and the shared storage device 2.

[0064] like Figure 3 As shown, the server 1 further includes: a ping command sending-receiving module 11, a basic event generating module 12, a fault diagnosis module 13, an event log generating module 14, and an ATS system access module 15.

[0065] The ping command sending-receiving module 11 is used to periodically send a first ping command and a second ping command to the vehicle-mounted TAU and the vehicle-mounted signal host respectively under the first network and the second network;

[0066] The basic event generation module 12 generates corresponding basic events based on the latency of the vehicle-mounted TAU and vehicle-mounted signal host in responding to the first and second ping commands, as well as a preset latency reference value. These basic events include events such as poor network quality, communication anomalies, and communication interruption between server 1 and the vehicle-mounted TAU / vehicle signal host in the corresponding network.

[0067] In this embodiment, the delay reference value is a configurable parameter, including the network quality poor delay upper limit value T1 (usually 100ms to 500ms, default is 200ms), the communication abnormality delay upper limit value T2 (usually 500ms to 5s, default is 300ms), and the communication interruption delay upper limit value T3 (usually 500ms to 5s, default is 500ms).

[0068] The time delays for the on-board TAU and the on-board signal host to respond to the first ping command and the second ping command are recorded as t1 and t2 respectively.

[0069] As shown below, under the first network: Figure 4 When t1 < T1, it indicates that no basic event has occurred.

[0070] When the situation of T1 < t1 ≤ T2 appears continuously for more than 3 times, the event of "poor network quality from the server to the in-vehicle TAU under the first network" is generated;

[0071] When the situation of T2 < t1 ≤ T3 appears continuously for more than 3 times, the event of "abnormal communication from the server to the in-vehicle TAU under the first network" is generated;

[0072] When the situation of t1 > T3 appears continuously for more than 6 times, the event of "communication interruption from the server to the in-vehicle TAU under the first network" is generated;

[0073] When t2 < T1, it indicates that no basic event has occurred.

[0074] When the situation of T1 < t2 ≤ T2 appears continuously for more than 3 times, the event of "poor signal quality from the server to the in-vehicle signal host under the first network" is generated;

[0075] When the situation of T2 < t2 ≤ T3 appears continuously for more than 3 times, the event of "abnormal communication from the server to the in-vehicle signal host under the first network" is generated;

[0076] When the situation of t2 > T3 appears continuously for more than 6 times, the event of "communication interruption from the server to the in-vehicle signal host under the first network" is generated;

[0077] When the situation of t2 > T3 appears continuously for more than 6 times, the event of "communication interruption from the server to the in-vehicle signal host under the first network" is generated;

[0078] Under the second network:

[0079] When t1 < T1, it indicates that no basic event has occurred.

[0080] When the situation of T1 < t1 ≤ T2 appears continuously for more than 3 times, the event of "poor network quality from the server to the in-vehicle TAU under the second network" is generated;

[0081] When the situation of T2 < t1 ≤ T3 appears continuously for more than 3 times, the event of "abnormal communication from the server to the in-vehicle TAU under the second network" is generated;

[0082] When the situation of t1 > T3 appears continuously for more than 6 times, the event of "communication interruption from the server to the in-vehicle TAU under the second network" is generated;

[0083] When t2 < T1, it indicates that no basic event has occurred.

[0084] When the situation of T1 < t2 ≤ T2 appears continuously for more than 3 times, the event of "poor signal quality from the server to the in-vehicle signal host under the second network" is generated;

[0085] When the situation of T2<t2≤T3 occurs more than 3 times in a row, a "communication abnormality event between the server and the vehicle signal host in the second network" will be generated;

[0086] When the situation of t2>T3 occurs more than 6 times in a row, a "communication interruption event between the server and the vehicle signal host in the second network" is generated.

[0087] The fault diagnosis module 13 periodically polls the abnormal communication events and generates a TACS train control system wireless communication fault diagnosis result based on all abnormal communication events polled at the current moment.

[0088] The fault diagnosis module 13 generates corresponding logic codes based on a set program and all communication abnormality events polled at the current moment. In this embodiment, the fault diagnosis module 13 generates a binary logic code based on the following four events. The logic code is represented by "abcd", where a, b, c, and d represent 0 or 1 respectively.

[0089] If the polling at the current moment is "abnormal communication event between the server and the vehicle-mounted TAU in the first network", then a=0; otherwise, a=1.

[0090] If the polling at the current moment is "abnormal communication event between the server and the vehicle-mounted TAU in the second network", then b=0; otherwise, b=1.

[0091] If the polling at the current moment finds "abnormal communication event between the server and the vehicle signal host in the first network", then c = 0. Otherwise, c = 1.

[0092] If the polling at the current moment finds "an abnormal communication event between the server and the vehicle-mounted signal host in the second network", then d = 0. Otherwise, d = 1.

[0093] The fault diagnosis module 13 also stores a logic table, which contains the logic code and the TACS train control system wireless communication fault cause corresponding to the logic code; the fault diagnosis module 13 obtains the current TACS train control system wireless communication fault cause by querying the logic table.

[0094] The logic table is as follows:

[0095]

[0096]

[0097] The event log generation module 14 is configured to generate a basic event log. The basic event log includes one or more of the following: the network name, the time the first ping command was generated, the delay of the onboard TAU responding to the first ping command, the time the second ping command was generated, the delay of the onboard signal host responding to the second ping command, the time the basic event was generated, and the cause of the wireless communication failure of the TACS train control system.

[0098] The ATS system access module 15 is used to obtain the train location information sent by the ATS system, and store the train location information corresponding to the basic event generation time in the corresponding basic event log.

[0099] The shared storage device 2 is connected to the server via Ethernet and is used to store basic event logs.

[0100] The human-computer interaction terminal 3 is connected to the server 1 via Ethernet and accesses the shared storage device 2 through the server 1. The human-computer interaction terminal 3 is used to query, select, and compile statistics for basic event logs, and visually display the corresponding query, selection, and statistical results. Analysts enter analysis criteria through the human-computer interaction terminal 3, which then pulls basic event log information from the main server for comprehensive analysis. The analysis results are then displayed graphically on the human-computer interaction interface, including a basic event statistics list, vehicle / hour event statistics analysis charts, vehicle / ground event statistics analysis charts, network performance statistics charts, and percentage statistics analysis charts. These functions greatly assist personnel in understanding the wireless communication quality of the TACS train control system.

[0101] The present invention also provides a wireless communication quality detection method for a TACS train control system, which is implemented by the wireless communication quality detection device 101 for a TACS train control system according to the present invention. Figure 5 As shown, it includes the following steps:

[0102] S1, server 1 periodically wirelessly sends a first ping command and a second ping command to the vehicle-mounted TAU and the vehicle-mounted signal host through multiple redundant networks;

[0103] S2. The basic event generation module 12 generates corresponding basic events based on the delay and delay reference value of the vehicle TAU and the vehicle signal host in responding to the first ping command and the second ping command; the basic events include poor communication quality, abnormal communication, and communication interruption events between the server 1 and the vehicle TAU / vehicle signal host in the corresponding network;

[0104] S3. The fault diagnosis module 13 periodically polls the abnormal communication events and generates a TACS train control system wireless communication fault diagnosis result based on all abnormal communication events polled at the current moment.

[0105] Step S3 specifically includes:

[0106] The fault diagnosis module 13 generates corresponding logic codes based on a set program and all communication abnormal events polled at the current moment, and queries a logic table based on the logic code to obtain the cause of the current TACS train control system wireless communication fault.

[0107] Step S4: query, delete, and count basic event logs through the human-computer interaction terminal 3, and visually display the corresponding query, deletion, and statistical results.

[0108] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0109] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A wireless communication quality detection device for a TACS train control system, characterized in that: Comprising: at least one server, the server comprising: A ping command sending and receiving module, which periodically sends a first ping command and a second ping command to the vehicle-mounted TAU and the vehicle-mounted signal host respectively through wireless signals under multiple redundant networks, and receives response messages from the vehicle-mounted TAU and the vehicle-mounted signal host to the first ping command and the second ping command; a basic event generation module, which generates corresponding basic events based on the delay of the vehicle-mounted TAU and the vehicle-mounted signal host in responding to the first ping command and the second ping command, as well as a preset delay reference value; the basic events include poor network quality, communication anomaly, and communication interruption events between the server and the vehicle-mounted TAU / vehicle signal host under the corresponding network; The fault diagnosis module periodically polls the abnormal communication events and generates a TACS train control system wireless communication fault diagnosis result based on all abnormal communication events polled at the current moment.

2. The wireless communication quality detection device for a TACS train control system according to claim 1, characterized in that: The fault diagnosis module generates a corresponding logic code based on a set program and all communication abnormality events polled at the current moment; the fault diagnosis module also stores a logic table, which contains the logic code and the TACS train control system wireless communication fault cause corresponding to the logic code; the fault diagnosis module obtains the current TACS train control system wireless communication fault cause by querying the logic table.

3. The wireless communication quality detection device for a TACS train control system according to claim 1, characterized in that: The detection device includes two servers, both of which are installed with dual-machine arbitration software; the dual-machine arbitration software selects one of the two servers as a working primary server and the other server as a non-working backup server; When the primary server fails, the backup server takes over.

4. The wireless communication quality detection device for a TACS train control system according to claim 1, wherein: The server also includes an event log generation module for generating a basic event log; the basic event log includes: network name, first ping command generation time, delay of the on-board TAU responding to the first ping command, second ping command generation time, delay of the on-board signal host responding to the second ping command, basic event generation time, and one or more causes of wireless communication failure of the TACS train control system.

5. The wireless communication quality detection device for a TACS train control system according to claim 4, characterized in that: The server also includes an ATS system access module for obtaining the train location information sent by the ATS system and storing the train location information corresponding to the basic event generation time in the corresponding basic event log.

6. The wireless communication quality detection device for a TACS train control system according to claim 5, characterized in that: It also includes a shared storage device connected to the server via Ethernet for storing basic event logs.

7. The wireless communication quality detection device for a TACS train control system according to claim 6, characterized in that: It also includes a human-computer interaction terminal, which is connected to the server via Ethernet communication and accesses the shared storage device through the server; the human-computer interaction terminal is used to query, delete, and count basic event logs, and visually display the corresponding query, deletion, and statistical results.

8. The wireless communication quality detection device for a TACS train control system according to claim 1, wherein: The multiple redundant networks include two networks, namely the first network and the second network; the server is connected to the on-board TAU and the on-board signal host through the first vehicle control switch and the first signal switch of the first network by wireless signals; the server is connected to the on-board TAU and the on-board signal host through the second vehicle control switch and the second signal switch of the second network by wireless signals.

9. The wireless communication quality detection device for a TACS train control system according to claim 8, characterized in that: The server includes five interfaces: the first vehicle control switch interface, the first signal switch interface, the second vehicle control switch interface, the second signal switch interface, and the data interface. The server is connected to the first vehicle control switch and the first signal switch via wireless signals of the first vehicle control switch interface and the first signal switch interface; The server is connected to the second vehicle control switch and the second signal switch via the second vehicle control switch interface and the second signal switch interface via wireless signals; Data transmission between the server and the shared storage device is achieved through the data interface.

10. The wireless communication quality detection device for a TACS train control system according to claim 1, wherein: The delay reference value is a configurable parameter.

11. The wireless communication quality detection device for a TACS train control system according to claim 2, characterized in that: The logic code is a binary code.

12. The wireless communication quality detection device for a TACS train control system according to claim 8, characterized in that: The first network and the second network are LTE networks.

13. A method for detecting wireless communication quality of a TACS train control system, implemented by the device for detecting wireless communication quality of a TACS train control system according to any one of claims 1 to 12, characterized in that: Contains steps: S1. The server periodically sends a first ping command and a second ping command to the vehicle-mounted TAU and the vehicle-mounted signal host wirelessly through multiple redundant networks; S2. A basic event generation module generates corresponding basic events based on the latency and latency reference values ​​of the vehicle TAU and vehicle signal host in responding to the first and second ping commands; the basic events include poor network quality, abnormal communication, and communication interruption events between the server and the vehicle TAU / vehicle signal host in the corresponding network. S3. The fault diagnosis module periodically polls the abnormal communication events and generates a TACS train control system wireless communication fault diagnosis result based on all abnormal communication events polled at the current moment.

14. The wireless communication quality detection method for a TACS train control system according to claim 13, wherein: Step S3 includes: The fault diagnosis module generates corresponding logic codes based on the set program and all communication abnormal events polled at the current moment, and queries the logic table based on the logic code to obtain the cause of the current TACS train control system wireless communication fault.

15. The wireless communication quality detection method for a TACS train control system according to claim 13, wherein: Also includes: Step S4: query, delete, and count basic event logs through the human-computer interaction terminal, and visually display the corresponding query, deletion, and statistical results.

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