Rail transit vehicle-mounted big data storage, analysis and transmission device and method

Abstract

The invention provides a rail transit vehicle-mounted big data storage, analysis and transmission device and method.The big data storage, analysis and transmission device is arranged in a 3U case and comprises a dual-power module, a communication module, a CPU module, a PHM module and a safety module; the communication module is in data communication with a train control network, train control network data collection is achieved, and the collected data are sent to the CPU module through the Ethernet. The CPU module monitors the health state of each module and communicates with a train control system through the communication module; the PHM module realizes data interaction with each system through an Ethernet interface, realizes storage of system state diagnosis data, performs data interaction with the CPU module through the Ethernet, and displays storage of train control data; and an Ethernet security isolation module established by the security module realizes security protection between the vehicle internal network and the ground network. According to the invention, collection of big data of the train is realized, collection and transmission of monitoring data of an intelligent train system are realized to the greatest extent, a safe and reliable data transmission method is provided, and sufficient data support and a safe data transmission strategy can be provided for an intelligent train operation and maintenance system.

Description

Technical Field

[0001] The present invention relates to the technical field of data analysis and transmission, and in particular to a rail transit vehicle-mounted big data storage, analysis and transmission device and method. Background Art

[0002] With the development of rail transit technology and the widespread application of train intelligent technology, the fault data and diagnostic data during train operation are increasing day by day. In the application of intelligent operation and maintenance systems, it is necessary to transmit the train data to the ground intelligent operation and maintenance server through vehicle-to-ground transmission to achieve train status monitoring, fault diagnosis, life prediction, and intelligent maintenance. In order to achieve the integrity of train data storage, the screening of effective train data, and the timeliness of vehicle-to-ground data transmission, reasonable and effective vehicle-mounted big data storage, analysis, and transmission have become a topic that needs to be solved urgently.

[0003] In the prior art, data recorders are used to store train control network data, and the data recorders send the stored data to the ground intelligent operation and maintenance system through wireless channels. Data recorders usually only record train control data, but cannot store diagnostic data of various vehicle systems. The amount of data transmitted by data recorders for intelligent operation and maintenance data does not meet the functional requirements of the train intelligent operation and maintenance system.

[0004] In the existing technology, each vehicle system communicates with the vehicle-to-ground transmission status through an Ethernet switch; the data of each system is sent to the ground intelligent operation and maintenance server separately. For vehicle-to-ground transmission, a larger bandwidth needs to be reserved to meet the redundancy requirements of unconnected systems. Discrete data transmission leads to poor real-time reference of data and inability to realize comprehensive application of multi-system data.

[0005] In the prior art, there is also a special data transfer device (WTD) equipped on the vehicle, which communicates with the data recorder and other devices through the Ethernet interface; the WTD sends the collected data to the ground server through a wireless channel. It is necessary to set up a special WTD device, and because it involves Ethernet data transmission issues, it is necessary to set up security protection (such as firewalls, etc.) separately. The number of devices is large and the transmission path is complex. Moreover, as a transfer device, it is impossible to clean and filter the train data, and a large amount of invalid data is transmitted, which puts a lot of pressure on the wireless channel transmission. Summary of the invention

[0006] According to the technical problems mentioned in the above background technology, a rail transit vehicle-mounted big data storage, analysis and transmission device and method are provided. The present invention uses hardware integrated design to build a reasonable hardware architecture to construct an integrated vehicle-mounted big data storage, analysis and transmission device; and through a reasonable hardware architecture and transmission interface solution, it realizes the collection, analysis, screening and data transmission functions of train big data; to support the needs of intelligent operation and maintenance and intelligent maintenance of rail transit.

[0007] The technical means adopted by the present invention are as follows:

[0008] A rail transit vehicle-mounted big data storage, analysis and transmission device, arranged in a 3U chassis, comprising: a dual power supply module, a communication module, a CPU module, a PHM module and a safety module;

[0009] The communication module performs data communication with the train control network to realize data collection of the train control network, and sends the collected data to the CPU module via Ethernet;

[0010] The CPU module monitors the health status of each module and communicates with the train control system through the communication module; the CPU module stores the data in the train control network and communicates with the maintenance terminal through the Ethernet interface to download and analyze the train storage data;

[0011] The PHM module implements data interaction through the Ethernet interface to realize the storage of train status diagnosis data, and performs data interaction with the CPU module through Ethernet to display the storage of train control data;

[0012] The Ethernet security isolation module established by the security module realizes the security protection of the vehicle internal network and the ground communication network;

[0013] The dual power supply module provides continuous and stable power to the communication module, the CPU module, the PHM module and the security module.

[0014] Furthermore, the dual power supply module includes: two power supply modules; the two power supply modules are mutually redundant; the power supply module is powered by 110V DC provided by the vehicle, and converts the 110V DC into 12V DC / 5V DC through a voltage conversion module arranged inside the power supply module.

[0015] Furthermore, the CPU module is a data storage module of a wide-temperature solid-state hard disk.

[0016] Furthermore, the communication module performs data communication with the train control network via an Ethernet / MVB network.

[0017] Furthermore, the communication module sends the train data to the CPU module through the backplane, and the CPU module stores the data.

[0018] Furthermore, the CPU module synchronously forwards the data sent by the communication module to the PHM module through the backplane.

[0019] Furthermore, the PHM module stores and cleans the control network data sent by the CPU module and the monitoring data sent by the vehicle monitoring network, and transmits data through the Ethernet interface and the wireless transmission channel to realize the transmission of train data to the ground operation and maintenance system.

[0020] Furthermore, one-way transmission is adopted between the communication module and the CPU module.

[0021] Furthermore, the communication module is provided with a plurality of communication interfaces.

[0022] The present invention also includes a rail transit vehicle-mounted big data storage, analysis and transmission method, comprising the following steps:

[0023] Step 1: The communication module communicates with the train control network to collect data from the train control network, and sends the collected data to the CPU module via Ethernet;

[0024] Step 2: The CPU module monitors the health status of each module and communicates with the train control system through the communication module;

[0025] Step 3: The CPU module stores the data in the train control network and communicates with the maintenance terminal through the Ethernet interface;

[0026] Step 4: The PHM module realizes data interaction through the Ethernet interface, realizes the storage of train status diagnosis data, and interacts with the CPU module through Ethernet to display the storage of train control data;

[0027] Step 5: Establish an Ethernet security isolation module through the security module to achieve security protection between the vehicle's internal network and the ground communication network.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] The present invention realizes the collection of train big data, realizes the collection and transmission of train intelligent system monitoring data to the greatest extent, and can provide sufficient data support for the train intelligent operation and maintenance system; solves the problem of clock asynchrony during the transmission of data from different subsystems of urban rail transit trains to the ground, and meets the needs of synchronous analysis of train status data; performs preliminary cleaning and screening of various train data, filters invalid data, and transmits train-to-ground data in the form of a whole message, which can effectively optimize the train-to-ground transmission bandwidth and reduce wireless transmission pressure. Building a redundant collection and transmission architecture can realize data backup and redundant transmission to avoid train data loss.

[0030] The present invention adopts an integrated architecture design, and integrates a vehicle data control data storage device (CPU module), a big data acquisition / storage device (PHM module), and a data security module. Through an intensive layout, the installation space can be effectively reduced and the external interface requirements can be reduced.

[0031] The present invention realizes the isolation of the train control network and the subsystem status monitoring network through the one-way data transmission between the communication module and the CPU module, avoids the interference of the monitoring network on the control network, and can ensure the reliability of the train control network.

[0032] The present invention realizes isolation between the vehicle network and the vehicle-to-ground communication through one-way transmission between the PHM module and the safety protection module, and can effectively prevent the vehicle-to-ground communication from interfering with or intruding the vehicle network.

[0033] The present invention cleans train data through a high-performance PHM module, which can effectively reduce the transmission of invalid data, lower the bandwidth requirements for train-to-ground transmission, and optimize the storage, analysis and data application of the ground intelligent operation and maintenance server.

[0034] The present invention realizes the collection, cleaning and analysis of control and status monitoring data through a high-performance PHM module, can form a preliminary train status analysis with high real-time data, and can provide fault / status abnormality reminders in the first time.

[0035] The present invention realizes data clock synchronization of various train systems based on an integrated acquisition method.

[0036] The present invention adopts a modular design approach, and can add or reduce corresponding modules according to actual application requirements to achieve flexible customized functional requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 Schematic diagram of the hardware architecture of the present invention.

[0039] Figure 2 It is a schematic diagram of the integrated device of the present invention.

[0040] Figure 3 This is a schematic diagram of data transmission communication according to the present invention. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. 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 creative work should fall within the scope of protection of the present invention.

[0042] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0043] like Figure 1-Figure 3 As shown, the present invention provides a rail transit vehicle-mounted big data storage, analysis and transmission device, which is arranged in a 3U chassis (in addition to the functional modules described in this solution, customized functional requirements can also be achieved by adding modules in the vacant positions. For example, an audit module is added to realize the train Ethernet data transmission audit function; a 5G / 4G communication module is added to realize the vehicle-to-ground transmission function through the 5G / 4G module) including: a dual power module, a communication module, a CPU module, a PHM module and a security module.

[0044] As a preferred embodiment, the dual power module provides continuous and stable power for the communication module, the CPU module, the PHM module and the safety module. The dual power module includes: two power modules; the two power modules are mutually redundant; the power module receives power from the 110V DC provided by the vehicle, and converts the 110V DC into 12V DC / 5V DC through a voltage conversion module disposed inside the power module.

[0045] As a preferred implementation, the communication module communicates data with the train control network to collect data from the train control network, and sends the collected data to the CPU module via Ethernet; the communication module communicates data with the train control network via Ethernet / MVB network. The communication module of the integrated device is provided with a reliable communication interface, which can be configured as MVB / Ethernet / CAN, etc. according to the needs of the train. The communication module communicates with the train control network to collect key data for train control; the communication module sends key train data to the CPU module via the backplane, and the CPU stores the data;

[0046] As a preferred implementation, the CPU module monitors the health status of each module and communicates with the train control system through the communication module; the CPU module stores the data in the train control network, and communicates with the maintenance terminal through the Ethernet interface to download and analyze the train storage data; the CPU module is a data storage module for a wide temperature solid-state hard disk. The CPU module synchronously forwards the data sent by the MVB module to the PHM module through the backplane. At the same time, the CPU module is responsible for storing data on the train control network, and can be linked to the PTU through the Ethernet interface to download the train control data, and analyze it through dedicated PTU software to realize the analysis of train operation failures and data.

[0047] As a preferred implementation, the PHM module implements data interaction with various systems (such as traction, braking, air conditioning, doors, auxiliary, etc.) through the Ethernet interface, realizes the storage of train status diagnostic data, and interacts with the CPU module through Ethernet to display the storage of train control data; the PHM module is a high-performance big data storage unit; after obtaining the train control data and the status diagnostic data of each system, the data is cleaned and screened to establish a preliminary data diagnostic model; and the cleaned data is sent to the security module through the internal Ethernet. The PHM module is equipped with a dedicated Ethernet interface to communicate with the train monitoring network (subsystem operation and maintenance network), and receives the monitoring and operation and maintenance data sent by each subsystem through the train Ethernet. The PHM module stores and cleans the control network data sent by the CPU module and the monitoring data sent by the vehicle monitoring network, and transmits data through the Ethernet interface and the wireless transmission channel to realize the transmission of train data to the ground operation and maintenance system.

[0048] In this application, the security module is an Ethernet security isolation module established by means of firewalls, network gates, etc., to achieve communication between the internal network of the vehicle and the ground, avoiding abnormalities in the train network caused by abnormalities in the vehicle-ground network transmission. As shown in Table 1, this is an interface description in an embodiment of this application:

[0049] Table 1 Interface Description

[0050]

[0051] Preferably, two independent integrated devices may be provided in the present application for data collection, storage, and transmission to ensure data integrity.

[0052] Two independent integrated devices monitor each other's status through the train monitoring network and adopt a master-slave control strategy for train-to-ground transmission. When one device is in an abnormal state, the train-to-ground data can be transmitted through another integrated device to ensure data integrity.

[0053] The present invention also includes a rail transit vehicle-mounted big data storage, analysis and transmission method, comprising the following steps:

[0054] Step 1: The communication module communicates with the train control network to collect data from the train control network, and sends the collected data to the CPU module via Ethernet;

[0055] Step 2: The CPU module monitors the health status of each module and communicates with the train control system through the communication module;

[0056] Step 3: The CPU module stores the data in the train control network and communicates with the maintenance terminal through the Ethernet interface;

[0057] Step 4: The PHM module realizes data interaction through the Ethernet interface, realizes the storage of train status diagnosis data, and interacts with the CPU module through Ethernet to display the storage of train control data;

[0058] Step 5: Establish an Ethernet security isolation module through the security module to achieve security protection between the vehicle's internal network and the ground communication network.

[0059] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages and disadvantages of the embodiments. In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rail transit vehicle-mounted big data storage, analysis and transmission device, arranged in a 3U chassis, characterized in that: include: Dual power supply module, communication module, CPU module, PHM module and safety module; The communication module performs data communication with the train control network to realize data collection of the train control network, and sends the collected data to the CPU module via Ethernet; The CPU module monitors the health status of each module and communicates with the train control system through the communication module; the CPU module stores the data in the train control network and communicates with the maintenance terminal through the Ethernet interface to download and analyze the train storage data; The PHM module implements data interaction through the Ethernet interface to realize the storage of train status diagnosis data, and performs data interaction with the CPU module through Ethernet to display the storage of train control data; The Ethernet security isolation module established by the security module realizes the security protection of the vehicle internal network and the ground communication network; The dual power supply module provides continuous and stable power to the communication module, the CPU module, the PHM module and the security module.

2. The rail transit vehicle-mounted big data storage, analysis and transmission device according to claim 1, characterized in that: The dual power supply module includes: two power supply modules; the two power supply modules are mutually redundant; the power supply module receives power from 110V DC provided by the vehicle, and converts the 110V DC into 12V DC / 5V DC through a voltage conversion module arranged inside the power supply module.

3. The rail transit vehicle-mounted big data storage, analysis and transmission device according to claim 1, characterized in that: The CPU module is a data storage module of a wide-temperature solid-state hard disk.

4. The rail transit vehicle-mounted big data storage, analysis and transmission device according to claim 1, characterized in that: The communication module performs data communication with the train control network via the Ethernet / MVB network.

5. The rail transit vehicle-mounted big data storage, analysis and transmission device according to claim 1, characterized in that: The communication module sends the train data to the CPU module through the backplane, and the CPU module stores the data.

6. The rail transit vehicle-mounted big data storage, analysis and transmission device according to claim 1, characterized in that: The CPU module synchronously forwards the data sent by the communication module to the PHM module through the backplane.

7. The rail transit vehicle-mounted big data storage, analysis and transmission device according to claim 1, characterized in that: The PHM module stores and cleans the control network data sent by the CPU module and the monitoring data sent by the vehicle monitoring network, and transmits data through the Ethernet interface and the wireless transmission channel to realize the transmission of train data to the ground operation and maintenance system.

8. The rail transit vehicle-mounted big data storage, analysis and transmission device according to claim 1, characterized in that: One-way transmission is adopted between the communication module and the CPU module.

9. The rail transit vehicle-mounted big data storage, analysis and transmission device according to claim 1, characterized in that: The communication module is provided with a plurality of communication interfaces.

10. A method for storing, analyzing and transmitting big data on a rail transit vehicle, using any device of claims 1-9, characterized in that: The following steps are included Step 1: The communication module communicates with the train control network to collect data from the train control network, and sends the collected data to the CPU module via Ethernet; Step 2: The CPU module monitors the health status of each module and communicates with the train control system through the communication module; Step 3: The CPU module stores the data in the train control network and communicates with the maintenance terminal through the Ethernet interface; Step 4: The PHM module realizes data interaction through the Ethernet interface, realizes the storage of train status diagnosis data, and interacts with the CPU module through Ethernet to display the storage of train control data; Step 5: Establish an Ethernet security isolation module through the security module to achieve security protection between the vehicle's internal network and the ground communication network.

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