Railway track driver operation vehicle-mounted safety management system

Abstract

The application discloses a track vehicle driver operation vehicle-mounted safety management system and belongs to the field of track vehicles. A high-speed power line carrier communication and an exchange communication dual-path autonomous switching communication mode are adopted between a vehicle-mounted terminal safety device and a vehicle-mounted comprehensive safety management and control device, communication faults between vehicle-mounted devices in special conditions such as tunnels and network attacks can be avoided, and normal operation of the track vehicle is ensured. A ground platform can acquire vehicle-mounted device information in real time and realizes remote management and control, and the safety and reliability of track vehicle operation are increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail cars, in particular to a rail car driver operation vehicle-mounted safety management system. BACKGROUND

[0002] Rail cars (including lifting rail cars and power rail cars) are the main transportation equipment for railway construction, equipment repair, emergency repair and inspection in the departments of railway equipment maintenance, overhaul, infrastructure and construction, and its safe operation is particularly important. The driver needs to have standardized and standardized operation before, during and after getting on the car, but in practice, due to inadequate supervision, there are often incomplete forms and processes, which pose a risk to the safe operation of the vehicle. The statistics of various reports need to be completed manually, and the driver cannot obtain important information in time, which also reduces the work efficiency. There is an urgent need for an intelligent safety management system that can assist the driver and the driver to implement static and dynamic detection of the rail car and real-time and reliable management during the operation process. HPLC technology uses existing basic power cables as communication media and basic power networks as communication networks to complete the local area network link of the vehicle-mounted terminal, without the need to lay additional communication lines, with long transmission distance, high communication frequency band, fast networking, strong self-organization and self-adaptability, etc.

[0003] At present, the rail car driver operation vehicle-mounted safety management mainly has the following two ways:

[0004] 1. Through various monitoring devices (such as vehicle-mounted video), driver standard fine operation, and filling out a large number of forms according to various regulations and systems, the overall safety factor of the driver operation is improved. The workload is large and mainly relies on the driver's active observation, recording and operation. The management effect of this way is greatly affected by subjective factors such as the driver's physical condition and emotional fluctuations, and objective factors such as no one supervises during vehicle operation. There are often some omissions, which affect the comprehensive operation safety of the vehicle.

[0005] 2. On the basis of various monitoring devices, a man-machine interaction management interface is added to real-time display of important parameter information of related devices, to assist the driver to complete part of the statistical work and facilitate the driver's management operation. It is mainly to perfect the function of each scattered rail car terminal safety device, and to form a system control by comprehensive integration. The scattered terminal safety devices and the total control device use WIFI and other wireless communication. When the rail car passes through the mountain tunnel during driving, the communication between the scattered locomotive safety devices is easily disturbed and the communication effect is poor; using switch communication, the device communication is easily attacked by broadcast storm and other network attacks. All of the above can cause the centralized management platform to fail to obtain important device information in time, affecting the safe operation of the rail car under special conditions. SUMMARY

[0006] The purpose of the present application is to provide a track car driver operation vehicle-mounted safety management system, which can avoid communication failure between vehicle-mounted devices in special situations such as tunnels and network attacks, and ensure the safety of track car operation.

[0007] To achieve the above-mentioned purpose, the present application provides the following solutions.

[0008] A track car driver operation vehicle-mounted safety management system comprises a vehicle-mounted comprehensive safety management device and a ground platform.

[0009] The vehicle-mounted comprehensive safety management device is arranged on the track car.

[0010] The vehicle-mounted comprehensive safety management device is used to adopt a dual-path autonomous switching communication mode of high-speed power line carrier communication and switch communication according to the communication quality, acquire the working state and fault information of each vehicle-mounted terminal safety device on the track car, and generate alarm information according to the fault information, while packaging the working state and alarm information of each vehicle-mounted terminal safety device into operation record information and uploading to the ground platform.

[0011] The vehicle-mounted comprehensive safety management device is also used to directly establish a transparent channel between the vehicle-mounted terminal safety device and the ground platform according to the request of the ground platform, and transmit the image and video data of the vehicle-mounted terminal safety device to the ground platform.

[0012] The ground platform is used to store the operation record information, image and video data, and also used to issue control instructions, which are forwarded to the vehicle-mounted terminal safety device by the vehicle-mounted comprehensive safety management device for execution.

[0013] According to the specific embodiments provided by the present application, the following technical effects are disclosed.

[0014] The present application discloses a track car driver operation vehicle-mounted safety management system, which adopts a dual-path autonomous switching communication mode of high-speed power line carrier communication and switch communication between the vehicle-mounted terminal safety device and the vehicle-mounted comprehensive safety management device, can avoid communication failure between vehicle-mounted devices in special situations such as tunnels and network attacks, and ensure the normal operation of the track car. The ground platform can acquire vehicle-mounted device information in real time and realize remote control, thereby increasing the safety and reliability of track car operation. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1A structure schematic diagram of a track vehicle driver operation vehicle-mounted safety management system provided by an embodiment of the present application is provided.

[0017] Figure 2 A principle block diagram of an OFDM modulation and demodulation method provided by an embodiment of the present application is provided. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0019] At present, track vehicle driver operation vehicle-mounted safety management is mainly achieved by increasing various monitoring devices (such as vehicle-mounted video), increasing human-computer interaction management interface, real-time centralized display of important parameter information of related devices, assisting the driver to complete part of statistical work, combining with the standard fine operation of the driver, and improving the overall safety factor of the driver operation.

[0020] The above safety management method, on the one hand, the human-computer interaction management interface centralized management is not comprehensive, and there are still many manual statistical work, resulting in large work load of the driver, and some omissions often exist, affecting the comprehensive operation safety of the vehicle. On the other hand, the WIFI or switch communication between the dispersed terminal safety devices and the general control device exists, and when the track vehicle passes through the tunnel or the switch is attacked by the network, the communication is interrupted, the centralized management platform cannot obtain important device information in time, and the operation safety of the track vehicle under special conditions is affected.

[0021] The present application provides a track vehicle driver operation vehicle-mounted safety management system, the high-speed power line carrier communication (HPLC, High Powerline Communication) and switch communication are used between the vehicle-mounted terminal safety device and the comprehensive safety management and control device, and the double-way autonomous switching communication mode can avoid the communication failure between the communication vehicle-mounted devices under special conditions such as tunnel and network attack, and ensure the normal operation of the track vehicle.

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0023] As Figure 1As shown, the railcar driver operation vehicle-mounted safety management system provided by the embodiment of the present application comprises: a vehicle-mounted comprehensive safety management device and a ground platform. The vehicle-mounted comprehensive safety management device is arranged on the railcar. The vehicle-mounted comprehensive safety management device is used to acquire the working state and fault information of each vehicle-mounted terminal safety device on the railcar according to the dual automatic switching communication mode of high-speed power line carrier communication and switch communication according to the communication quality, and generate alarm information according to the fault information, and meanwhile, pack the working state and alarm information of each vehicle-mounted terminal safety device into operation record information and upload to the ground platform. The vehicle-mounted comprehensive safety management device is also used to directly establish a transparent channel of the vehicle-mounted terminal safety device and the ground platform according to the request of the ground platform, and transparently transmit the image and video data of the vehicle-mounted terminal safety device to the ground platform. The ground platform is used to store the operation record information, image and video data; the ground platform is also used to issue control instructions, and the control instructions are forwarded to the vehicle-mounted terminal safety device by the vehicle-mounted comprehensive safety management device for execution.

[0024] The vehicle-mounted comprehensive safety management device autonomously switches between the two modes of HPLC and switch communication according to the communication quality, realizes reliable communication with each vehicle-mounted terminal safety device, monitors the working state and fault information of each vehicle-mounted terminal safety device in real time, analyzes the safety risk and gives voice alarm, and uploads the working state and alarm information of each device to the ground platform.

[0025] The vehicle-mounted comprehensive safety management device switches between high-speed power line carrier communication and switch communication according to the communication quality for each communication between the vehicle-mounted comprehensive safety management device and the vehicle-mounted terminal safety device. If both high-speed power line carrier communication and switch communication are normal, the vehicle-mounted comprehensive safety management device receives the working state and fault information sent by the vehicle-mounted terminal safety device by using high-speed power line carrier communication and switch communication at the same time, and compares the received information of high-speed power line carrier communication and switch communication to ensure the accuracy and safety of the received information.

[0026] Exemplarily, the railcar driver operation vehicle-mounted safety management system further comprises: a switch, a plurality of high-speed power line carrier communication modules and a plurality of network communication modules.

[0027] The number of high-speed power line carrier communication modules and network communication modules is the same as the number of vehicle-mounted terminal safety devices on the railcar. One high-speed power line carrier communication module and one network communication module are arranged on one vehicle-mounted terminal safety device; the switch is integrated in the vehicle-mounted comprehensive safety management device. The vehicle-mounted terminal safety device realizes communication with the vehicle-mounted comprehensive safety management device through the high-speed power line carrier communication module, and the vehicle-mounted terminal safety device also realizes communication with the vehicle-mounted comprehensive safety management device through the network communication module and the switch.

[0028] Vehicle terminal safety equipment: various devices and apparatuses for safety protection on the vehicle, such as train control equipment, anti-slip device, axle temperature alarm device, anti-collision device, and the like. The existing equipment needs to be reformed in communication, and the HPLC communication module and the network communication module are added.

[0029] As can be seen from Figure 1 , one vehicle-mounted comprehensive safety management and control device is configured on each rail car, and the vehicle terminal safety equipment on each rail car communicates with the vehicle-mounted comprehensive safety management and control device through high-speed power line carrier communication and switch communication. All vehicle-mounted comprehensive safety management and control devices, all vehicle terminal safety equipment, all switches, all high-speed power line carrier communication modules, and all network communication modules are collectively referred to as vehicle-mounted equipment.

[0030] Referring to Figure 1 , the rail car driver operation vehicle-mounted safety management system further includes a vehicle-ground communication system. The vehicle-mounted comprehensive safety management and control device communicates with the ground platform through the vehicle-ground communication system.

[0031] The vehicle-ground communication system includes a railway comprehensive information network. The vehicle-mounted comprehensive safety management and control device accesses the railway comprehensive information network through a public mobile communication network or a dedicated mobile communication network, communicates with the ground platform, and can obtain vehicle-mounted equipment information in real time on a user terminal of the ground platform, and realizes remote management and control, thereby increasing the safety and reliability of rail car operation. Specifically, the working state and alarm information of the vehicle-mounted comprehensive safety management and control device are packaged into operation record information and ground user terminal remote control instructions, which are transmitted to the railway comprehensive information network through a dedicated mobile communication network channel. The image data and video data of the vehicle-mounted comprehensive safety management and control device are transmitted to the railway comprehensive information network through a public mobile communication network channel.

[0032] Specifically, the ground platform includes a GMS system platform, a comprehensive safety management system platform, and a plurality of user terminals.

[0033] The GMS system platform is mainly used for analyzing the operation record information of the vehicle-mounted comprehensive safety management and control device, and sorting and storing the analyzed operation record information.

[0034] The comprehensive safety management system platform is mainly used for transmission, storage, and control of image and video data. The business information interaction with the ground platform is completed through the user terminal, and the current real-time state information of all vehicle drivers and attendants can be inquired on the cloud platform. In special cases, the vehicle can also be remotely controlled for emergency braking, etc.

[0035] As shown in Figure 1 , the GMS system platform and the comprehensive safety management system platform are each configured with a storage device, a data server, and a central system server.

[0036] User terminal: composed of PC machines distributed in the PC machine group of the job station section value room or monitoring center. The PC machine runs the client software or WEB client, accesses the GMS system platform and the comprehensive safety management system platform through the railway integrated information network, and realizes business query and operation. The user terminal is mainly used to send a call request to the vehicle-mounted comprehensive safety management and control device through the comprehensive safety management system platform, the vehicle-mounted comprehensive safety management and control device forwards the call request to the vehicle terminal safety device, the vehicle terminal safety device confirms the call request, the vehicle-mounted comprehensive safety management and control device directly establishes a transparent channel between the vehicle terminal safety device and the comprehensive safety management system platform, and transmits the image and video data of the vehicle terminal safety device to the comprehensive safety management system platform. The comprehensive safety management system platform stores and distributes the image and video data to the user terminal.

[0037] The user terminal is also used to call the parsed operation record information from the GMS system platform according to the time axis for user query and comprehensive analysis.

[0038] When performing remote control, the user terminal sends a control instruction, which is forwarded to the vehicle terminal safety device through the communication established by the comprehensive safety management system platform and the vehicle-mounted comprehensive safety management and control device for execution.

[0039] High-speed power line carrier communication technology (HPLC) constructs a track vehicle terminal local area network, uses the existing basic power cable in the track vehicle as the communication medium and the basic power network as the communication network to complete the link of the vehicle terminal local area network link, and does not need to lay additional communication lines. In particular, the HPLC technology introduces an advanced OFDM modulation and coding method, which can well eliminate the influence of time-varying, strong interference and other factors of the carrier channel, provide a reliable and stable information transmission rate of 10 Mbps, and has the advantages of long transmission distance, high communication frequency band, fast networking, automatic switching and recovery of routing, strong self-organization and adaptability, etc.

[0040] The HPLC using the OFDM modulation and demodulation method subdivides the power line channel into N sub-channels, each sub-channel is orthogonal to each other, converts high-speed serial data into parallel data on the line, and combines it in the sub-channel to realize high-speed data transmission, good anti-interference ability, high stability, strong anti-attenuation, and its single-stage communication distance can reach 1.5 kilometers, supports multi-stage relay, and can well meet the requirements of track vehicle terminal local area network data transmission, as shown in Figure 2

[0041] Working process of track vehicle driver operation vehicle safety management system:

[0042] (1) The vehicle terminal safety device arranges its working state, fault information and heartbeat packet data, and periodically sends them to the vehicle-mounted comprehensive safety management and control device through HPLC and network communication; ​

[0043] (2) The vehicle-mounted comprehensive safety management device autonomously switches between HPLC and switch communication according to communication quality, realizes reliable communication with each vehicle-mounted terminal safety device, monitors the working state and fault information of each vehicle-mounted terminal safety device in real time, analyzes safety risks and issues voice alarms, and packs the working state and alarm information of each device into operation record information, which is automatically uploaded to the GMS system platform through the railway special mobile network and the railway comprehensive information network. The GMS system platform analyzes, sorts and saves the operation record. When the client analyzes the data, it can be retrieved from the GMS system platform.

[0044] (3) For image and video data, the client sends a request through the comprehensive safety management system platform, and the railway comprehensive information network and the public mobile communication network (public / 4G) establish communication with the vehicle-mounted comprehensive safety management device. The vehicle-mounted comprehensive safety management device switches between HPLC communication and network communication according to the communication quality, and forwards the request to the vehicle-mounted terminal safety device. After the vehicle-mounted terminal safety device confirms the request, the vehicle-mounted comprehensive safety management device directly establishes a transparent channel between the vehicle-mounted terminal safety device and the comprehensive safety management system platform, and transmits the image and video data of the vehicle-mounted terminal safety device to the comprehensive safety management system platform. The platform stores the data and distributes it to the client.

[0045] (4) For remote control information, the client sends control instructions through the comprehensive safety management system platform, and the railway comprehensive information network and the railway special mobile communication network establish communication with the vehicle-mounted comprehensive safety management device. The vehicle-mounted comprehensive safety management device switches between HPLC communication and network communication according to the communication quality, and forwards the control instructions to the vehicle-mounted terminal safety device for execution.

[0046] (5) When the client performs comprehensive analysis and query, it retrieves operation records from the GMS system platform and image and video data from the comprehensive safety management system platform according to the time axis.

[0047] The local area network between the vehicle-mounted terminal safety device and the vehicle-mounted comprehensive safety management device adopts a dual autonomous switching communication mode of high-speed power line carrier (HPLC) communication and switch communication. When the switch communication fails, it automatically switches to HPLC communication, avoiding communication failure between vehicle-mounted devices in special situations such as tunneling and network attacks, and ensuring normal operation. The ground comprehensive safety management cloud platform can obtain vehicle-mounted device information in real time through public mobile communication or wireless and special networks, and realize remote control, increasing the safety and reliability of track car operation.

[0048] The comprehensive safety management content of the track car driver's on-board safety management system is more comprehensive and intelligent, and the management mode is more diversified, including cloud platform remote control.

[0049] The various embodiments described in this specification are presented for the purpose of illustrating the principles of the present application and its best mode of operation. Each of the embodiments described in this specification has been provided for the purpose of illustration and is not intended to limit the application.

[0050] The principles and implementations of the present application have been described in the specification with specific examples. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation and application range of the present application can be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A railcar crew on-board safety management system, comprising: The application relates to a vehicle-mounted comprehensive safety management and control device and a ground platform. The vehicle-mounted comprehensive safety management and control device is arranged on a rail vehicle. The vehicle-mounted comprehensive safety management and control device is used for acquiring the working states and fault information of each vehicle-mounted terminal safety device on the rail vehicle according to a double-path autonomous switching communication mode of high-speed power line carrier communication and switch communication according to communication quality, and generating alarm information according to the fault information, and meanwhile, the working states and alarm information of each vehicle-mounted terminal safety device are packaged into operation record information and uploaded to the ground platform. The vehicle-mounted comprehensive safety management and control device is also used for directly establishing a transparent channel between the vehicle-mounted terminal safety device and the ground platform according to the request of the ground platform, and transmitting the image and video data of the vehicle-mounted terminal safety device to the ground platform. The ground platform is used for storing the operation record information, image and video data, and issuing control instructions which are forwarded to the vehicle-mounted terminal safety device by the vehicle-mounted comprehensive safety management and control device for execution. The vehicle-mounted comprehensive safety management and control device switches between the high-speed power line carrier communication and the switch communication according to the communication quality for each path of communication between the vehicle-mounted comprehensive safety management and control device and the vehicle-mounted terminal safety device. If the high-speed power line carrier communication and the switch communication are both normal, the vehicle-mounted comprehensive safety management and control device simultaneously receives the working states and fault information sent by the vehicle-mounted terminal safety device through the high-speed power line carrier communication and the switch communication, and compares the received information of the high-speed power line carrier communication and the switch communication to ensure the accuracy of the received information. The application further relates to the following technical scheme:

2. The railcar foreman's car onboard safety management system of claim 1, wherein, The application further relates to the following technical scheme: The application further relates to the following technical scheme: The number of the high-speed power line carrier communication modules and the network communication modules is the same as that of the vehicle-mounted terminal safety devices on the rail vehicle. One high-speed power line carrier communication module and one network communication module are arranged on one vehicle-mounted terminal safety device, and the switch is integrated in the vehicle-mounted comprehensive safety management and control device. The vehicle-mounted terminal safety device realizes communication with the vehicle-mounted comprehensive safety management and control device through the high-speed power line carrier communication module, and also realizes communication with the vehicle-mounted comprehensive safety management and control device through the network communication module and the switch.

3. The railcar foreman's car onboard safety management system of claim 1, wherein, The application further relates to the following technical scheme: The vehicle-ground communication system is used for data interaction between the vehicle-mounted comprehensive safety management and control device and the ground platform. The vehicle-ground communication system comprises a railway comprehensive information network.

4. The railcar conductor waycar onboard safety management system of claim 3, wherein, The working states and alarm information of the vehicle-mounted comprehensive safety management and control device are packaged into operation record information and ground user terminal remote control instructions, and are transmitted to the railway comprehensive information network through a special mobile communication network channel. The image data and video data of the vehicle-mounted comprehensive safety management and control device are transmitted to the railway comprehensive information network through a public mobile communication network channel. The ground platform comprises a GMS system platform, a comprehensive safety management system platform and a plurality of user terminals.

5. The railcar conductor waycar onboard safety management system of claim 1, wherein, The GMS system platform is used for analyzing the operation record information of the vehicle-mounted comprehensive safety management and control device, and sorting and storing the analyzed operation record information. The user terminal is used for calling the analyzed operation record information from the GMS system platform according to a time axis, so as to be used for user query and comprehensive analysis. ​ The user terminal is also used for issuing a calling request to the vehicle-mounted comprehensive safety management and control device through the comprehensive safety management system platform, the vehicle-mounted comprehensive safety management and control device forwards the calling request to the vehicle terminal safety device, the vehicle terminal safety device confirms the calling request, the vehicle-mounted comprehensive safety management and control device directly establishes a transparent channel of the vehicle terminal safety device and the comprehensive safety management system platform, the image and video data of the vehicle terminal safety device are transparently transmitted to the comprehensive safety management system platform, and the comprehensive safety management system platform stores and distributes the image and video data to the user terminal; When remote control is performed, the user terminal issues a control instruction, the control instruction is forwarded to the vehicle terminal safety device through communication established by the comprehensive safety management system platform and the vehicle-mounted comprehensive safety management and control device, and the vehicle terminal safety device is executed.

6. The railcar conductor waycar onboard safety management system of claim 5, wherein, The user terminal comprises PC machines distributed in work type station segment duty rooms or monitoring centers; Client software or a WEB client is run on the PC machine, the GMS system platform and the comprehensive safety management system platform are accessed through a railway comprehensive information network, and business query and operation are realized.

7. The railcar conductor waycar onboard safety management system of claim 1, wherein, The high-speed power line carrier communication adopts an OFDM modulation and demodulation method, power line channels are subdivided into N sub-channels, the sub-channels are orthogonal to each other, high-speed serial data is converted into parallel data on a line, the parallel data are combined in the sub-channels, and data transmission is realized.

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