A multi-mode vehicle-mounted radio, service processing method and device

Abstract

The present disclosure relates to the technical field of railway wireless train dispatching communication, and provides a multi-mode vehicle-mounted radio, a service processing method and device. The method includes: receiving service requirement information from vehicle-mounted devices and network registration success messages from each communication module; using the correspondence between service attributes, service communication models, service priorities and service IDs to determine the service ID corresponding to the service attribute identifier, service communication model identifier and service priority identifier carried in the service requirement information; using the correspondence between service IDs and communication modules to find the communication module corresponding to the determined service ID; selecting a communication module from the found communication modules based on the received network registration success messages; and sending the service requirement information to the selected communication module. By classifying and controlling the transmission of service requirement information using the correspondence between service IDs and communication modules, it is possible to make full use of five spectrum resources, namely GSM-R, communication satellites, LTE-R, 5G-R, and public networks, to achieve more efficient data transmission.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of railway wireless train dispatching communication, and particularly relates to a multi-mode vehicle-mounted radio, a service processing method and a device. Background Art

[0002] Currently, the most widely used technology in China's high-speed railways is GSM-R (Global System for Mobile Communications - Railway), which is a data-based mobile radio communication technology developed specifically for railways based on the mature and general GSM platform of public mobile radio communication systems.

[0003] In the existing GSM-R / 450 MHz railway integrated wireless communication system, the Cab Integrated Radio communication equipment (CIR) is an upgraded version of the locomotive radio in the railway wireless train dispatching communication system. It is an integrated vehicle-mounted communication equipment developed based on GSM-R digital mobile communication technology, GPS global positioning technology, 450 MHz analog radio communication technology, etc., including services such as voice and data, and is mainly applied to passenger dedicated lines or high-speed railways. The CIR has two working modes: GSM-R and 450 MHz. It completes functions such as train dispatching communication, train number transmission, dispatching order transmission, and end-of-train air pressure information transmission in these two modes. In the GSM-R mode, the data interface can be used to transmit the data transmission function that the locomotive may expand in the future, with extremely strong function expandability. In addition, it also includes an end-of-train radio system to ensure the normal monitoring and operation of the end of the train.

[0004] As a vehicle-mounted terminal device, the CIR vehicle-mounted radio constructs a wireless transmission channel with the ground base station to provide communication services that ensure the safety of vehicle-to-ground train control data. However, with the development of domestic and foreign communication technologies and the increasing business demands of rail transit, the CIR vehicle-mounted radio faces problems such as low data rate, difficulty in developing various new services on the existing CIR vehicle-mounted radio, and the inability of the existing GSM-R network capacity to meet the development needs of the future railway industry.

[0005] Future rail transit will face a situation where multi-system wireless communication systems coexist, and multiple sets of different system radios need to be deployed separately for vehicle-mounted wireless communication equipment. In this way, problems such as duplicate equipment construction, waste of bandwidth resources, and low utilization rate of spectrum resources will be faced during the network construction process. Summary of the Invention

[0006] To solve the above problems, the present disclosure provides a multi-mode vehicle-mounted radio and a service processing method. By using the correspondence between service attributes and communication modules, the service demand information is classified and controlled for transmission, which can improve the utilization efficiency of spectrum resources.

[0007] In a first aspect, a multi-mode vehicle-mounted radio is provided, including: an interface module, a core processing module, a wireless communication module, a radio frequency module, and a power supply module; wherein:

[0008] The core processing module includes: a core processor; the core processor is configured to receive service demand information from vehicle-mounted devices and network registration success messages from each communication module through the interface module; use the correspondence between service attributes, service communication models, service priorities, and service IDs to determine the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the service demand information; use the correspondence between service IDs and communication modules to find the communication module corresponding to the determined service ID; select a communication module from the found communication modules based on the received network registration success message; and send the service demand information to the selected communication module;

[0009] The wireless communication module is connected to the core processing module through the interface module and includes: a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, a low-earth orbit communication satellite communication module, and a public network communication module; each communication module is configured to register the corresponding network, send the network registration success message to the core processing module, and send the service demand information to the radio frequency module;

[0010] The radio frequency module is configured to modulate the service demand information onto a radio frequency signal and send the radio frequency signal through an antenna;

[0011] The power supply module is configured to provide power for each module.

[0012] Further, the service ID includes: A - F, where A corresponds to railway emergency calls, train operation-related dispatching, train operation information, and train operation safety; B corresponds to operation and maintenance voice, C corresponds to operation and maintenance alarms, D corresponds to operation and maintenance data, E corresponds to operation and maintenance video, and F corresponds to emergency rescue data.

[0013] Further, services A and B correspond to the low-earth orbit communication satellite communication module, the GSM-R communication module, the LTE-R communication module, and the 5G-R communication module;

[0014] Services C, D, and E preferentially correspond to the public network module and also correspond to the low-earth orbit communication satellite communication module;

[0015] Service F corresponds to the low-earth orbit communication satellite communication module and the 5G-R communication module.

[0016] Further, the radio frequency module includes: 5 first transceiver switching components, 5 PAs, 5 LNAs, 5 second transceiver switching components, 1 combiner / divider, and an antenna;

[0017] The core processing module is further configured to output a control signal to the radio frequency module to switch the transceiver states of the first transceiver switching component and the second transceiver switching component;

[0018] Specifically, the radio frequency module is configured to, under the control of the control signal, respectively amplify the power of the received wireless signals from the GSM-R communication module, LTE-R communication module, 5G-R communication module, low-earth orbit communication satellite communication module, and public network communication module through the first transceiver switching component, PA, second transceiver switching component, combiner / divider, and antenna, and then transmit them through the antenna after combining; and respectively distribute and perform gain compensation on the received wireless signals through the antenna, combiner / divider, second transceiver switching component, LNA, and first transceiver switching component, and then send them to the corresponding communication modules.

[0019] Further, the core processor is further configured to receive the heartbeat messages of each communication module through the channels with each communication module; and determine the corresponding relationship between the channels and the communication modules by using the communication network mode identifiers carried in the heartbeat messages.

[0020] Further, the power supply module is specifically configured to independently supply power to each communication module;

[0021] The core processor is further configured to, when it is determined that a certain communication module crashes, implement a cold start of the crashed communication module by controlling the power supply module.

[0022] Further, it further includes: a communication switching module connected to the core processor; the interface module further includes an Ethernet interface unit connected to an extended service transmission device;

[0023] The communication switching module includes: an Ethernet switching chip; the Ethernet switching chip is used for routing and forwarding of each service data.

[0024] Further, it further includes: a Trace tracker connected to the core processor;

[0025] The core processor is further configured to, when a communication failure occurs, trace the events in the log through the Trace tracker, identify the fault point and fault cause, and generate a fault information record and a diagnostic report;

[0026] The Ethernet switch chip is also used for logging, real-time monitoring of the operating status of GSM-R / LTE-R / 5G-R / LEO communication satellite communication modules, storing the log files of each communication module, recording the transmission path of data packets in the network, determining the source, destination, and nodes passed by the data packets; and simultaneously monitoring and recording device fault information.

[0027] In a second aspect, a service processing method is provided, including:

[0028] Receiving service requirement information from in-vehicle devices and network registration success messages from each communication module;

[0029] Using the correspondence between service attributes, service communication models, service priorities, and service IDs, determining the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the service requirement information;

[0030] Using the correspondence between service IDs and communication modules, finding the communication module corresponding to the determined service ID, where the communication modules include: LEO communication satellite communication modules, GSM-R communication modules, LTE-R communication modules, 5G-R communication modules, and public network communication modules;

[0031] Based on the received network registration success messages, selecting a communication module from the found communication modules;

[0032] Sending the service requirement information to the selected communication module.

[0033] In a third aspect, a service processing device is provided, including: a receiving unit, a service ID determination unit, a communication module determination unit, a selection unit, and a sending unit, where:

[0034] The receiving unit is used for receiving service requirement information from in-vehicle devices and network registration success messages from each communication module;

[0035] The service ID determination unit is used for using the correspondence between service attributes, service communication models, service priorities, and service IDs to determine the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the service requirement information;

[0036] The communication module determination unit is used for using the correspondence between service IDs and communication modules to find the communication module corresponding to the determined service ID, where the communication modules include: LEO communication satellite communication modules, GSM-R communication modules, LTE-R communication modules, 5G-R communication modules, and public network communication modules;

[0037] The selection unit is used for selecting a communication module from the found communication modules based on the received network registration success messages;

[0038] A sending unit, configured to send service requirement information to a selected communication module.

[0039] Compared with the prior art, the present disclosure has the following advantages:

[0040] 1. Efficient utilization of spectrum resources: By using the correspondence between service IDs and communication modules, classifying, controlling, and transmitting service requirement information can make full use of the spectrum resources of five communication technologies, namely GSM-R, low-earth-orbit communication satellites, LTE-R, 5G-R, and public networks, to achieve more efficient data transmission.

[0041] 2. Enhanced system compatibility: Without modifying the original connection to ATP devices, the GSM-R / LTE-R / 5G-R / low-earth-orbit communication satellite communication modules are uniformly accessed using the original hardware solution, and are compatible with various services in the railway system, such as voice services, data transmission services, monitoring services, etc., for unified access.

[0042] 3. Enhanced system scalability: Support for multi-mode wireless communication transmission of LTE-R radios / 5G-R radios / GSM-R radios / satellite radios. Select a secure and reliable channel according to service requirements for data transmission with ground devices, and realize train control data and other service data, such as signal authorization, line data, temporary speed limit information, MA information, ATO plan data, etc., which can improve the reliability of wireless transmission data.

[0043] Other features and advantages of the present disclosure will be described in the subsequent specification, and some of them will become obvious from the specification, or can be understood by implementing the present disclosure. The objectives and other advantages of the present disclosure can be achieved and obtained through the structures pointed out in the specification, claims, and drawings. Brief Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0045] Figure 1 Shows a schematic diagram of the structure of a wireless communication system including a multi-mode vehicle-mounted radio according to an embodiment of the present disclosure;

[0046] Figure 2 Shows a schematic diagram of the hardware structure of a multi-mode radio device according to an embodiment of the present disclosure;

[0047] Figure 3Shows a schematic diagram of the hardware structure of another multi-mode radio device according to an embodiment of the present disclosure;

[0048] Figure 4 Shows a radio frequency structure diagram of a GSM-R / LTE-R / 5G-R / satellite multi-mode communication device according to an embodiment of the present disclosure;

[0049] Figure 5 Shows a schematic diagram of a service processing method according to an embodiment of the present disclosure. Detailed implementation manners

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0051] Figure 1 Shows a schematic diagram of the structure of a wireless communication system including a multi-mode vehicle-mounted radio according to an embodiment of the present disclosure, Figure 1 wherein the GSM-R / LTE-R / 5G-R / communication satellite radio is a multi-mode vehicle-mounted radio. The multi-mode vehicle-mounted radio supports GSM-R / LTE-R / 5G-R / satellite communications. It is a vehicle-mounted wireless access terminal device and an important device on the wireless side of the train control system. The multi-mode vehicle-mounted radio can intelligently identify and connect to GSM-R, LTE-R, 5G-R, and satellite communication networks. When the train is running in an area covered by the GSM-R network, the multi-mode vehicle-mounted radio will automatically connect to the GSM-R network, and perform train control service data transmission with the vehicle-mounted device host in the train control system through an interface, and communicate with the base station through the Um air interface. Similarly, when the train enters an area covered by the LTE-R, 5G-R, or communication satellite network, the multi-mode vehicle-mounted radio will automatically switch to the corresponding network, and perform train control service data transmission with the vehicle-mounted device host in the train control system through an interface, and communicate with the base station through the corresponding Uu air interface.

[0052] Figure 2 Shows a schematic diagram of the hardware structure of a multi-mode vehicle-mounted radio according to an embodiment of the present disclosure, including: an interface module, a core processing module, a wireless communication module, a radio frequency module, and a power supply module;

[0053] The core processing module includes: a core processor; the core processor is used to receive service requirement information from in-vehicle devices and network registration success messages from each communication module through the interface module; use the service attributes, service communication models, and the correspondence between service priorities and service IDs to determine the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the service requirement information; use the correspondence between service IDs and communication modules to find the communication module corresponding to the determined service ID; from the found communication modules, select a communication module based on the received network registration success message; and send the service requirement information to the selected communication module.

[0054] The wireless communication module is connected to the core processing module through the interface module and includes: a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, a low-earth orbit communication satellite communication module, and a public network communication module; each communication module is used to register the corresponding network, send the network registration success message to the core processing module, and send the service requirement information to the radio frequency module.

[0055] The radio frequency module is used to modulate the service requirement information onto a radio frequency signal and send the radio frequency signal through an antenna.

[0056] The power supply module is used to convert the input voltage into the voltage required by the module and supply power to each module.

[0057] The above core processing module is the main core computing part of the multi-mode in-vehicle radio, and it can automatically identify the capabilities of connecting to GSM-R, LTE-R, 5G-R, and low-earth orbit communication satellite networks according to the service ID.

[0058] The interface module includes: an interface unit for connecting to the in-vehicle ATP device and an interface unit for connecting to each communication module.

[0059] The wireless communication module supports the communication capabilities of 2G / 4G / 5G / satellite and can be connected to the core processing module using a standard MiniPCIe interface.

[0060] Specifically, the above power supply module is powered by direct current and input from the backplane. The first-stage step-down converts the input voltage into the voltage required by the module. The core power supply is divided into three parts: system power supply, wireless communication module power supply, and other peripheral power supplies. The second-stage step-down converts the module voltage into the voltage required by the circuit, etc. The GSM-R / LTE-R / 5G-R / satellite communication module, EMMC (Embedded Multimedia Card), and DDR adopt independent power supply systems, and other peripherals and the system share a power supply system. In addition to considering from the perspective of the output current of the power chip, a more important design idea is that independent power supply can enable the core calculator to control the power supply of each module. Especially when it is judged by the software self-check mechanism that a certain module of the GSM-R / LTE-R / 5G-R / satellite communication module crashes, the cold start of the module can be achieved through power control, thus realizing the self-healing function. Considering that the device reserves EMMC for storing application data, device logs, and fault data to avoid abnormal file systems caused by sudden power outages, a super capacitor is added as a backup power supply in the design. When the device loses power, it can notify the system to process the EMMC, and actively cut off the backup power supply after the processing is completed. The working time of the backup power supply is not less than 3 seconds.

[0061] Further, the above core processing module is also used to monitor the status of the registered network information of each communication module through control information and receive the registration success messages of each communication module;

[0062] The wireless communication module is also used to perform the action of registering the network and feedback the registration network success message to the core processing module.

[0063] Further, when the selected communication module is a low-earth orbit communication satellite communication module, the core processor is specifically used to convert the service requirement information into an IP data stream that matches the satellite communication protocol and use the selected low-earth orbit communication satellite communication module to send the IP data stream that matches the satellite communication protocol.

[0064] Further, the core processor is also used to receive the heartbeat messages of each communication module through the channels between the core processor and each communication module; and determine the corresponding relationship between the channels and the communication modules by using the communication network mode identifier carried in the heartbeat messages.

[0065] In the above solution, the core processor determines whether the communication module is working properly through the heartbeat; based on the received registration network success message, determines the accessed network, and then selects a communication module from the found communication modules, and uses the corresponding relationship between the channels and the communication modules to select a channel to send the service requirement information to the selected communication module.

[0066] Further, the multimode radio station further includes: a communication switching module connected to the core processor; the interface module further includes an Ethernet interface unit connected to the extended service transmission device;

[0067] The communication switching module includes: an Ethernet switching chip for routing and forwarding of each service data.

[0068] The Ethernet switching chip can be used to connect the processor and each wireless communication module group, distribute the service data to each communication module group; it can also be connected to the core processor to perform routing and forwarding of various service data, as Figure 3 shown.

[0069] Further, the multimode radio station further includes: a Trace tracker connected to the core processor;

[0070] The core processor is further configured to, when a communication failure occurs, trace the events in the log through the Trace tracker, identify the fault point and the cause of the fault, and generate a fault information record and a diagnostic report;

[0071] The Ethernet switching chip is further configured for log recording, real-time monitoring of the operating status of the GSM-R / LTE-R / 5G-R / LEO communication satellite communication module groups, storing the log files of each communication module group, recording the transmission path of data packets in the network, determining the source, destination, and passing nodes of the data packets; and simultaneously monitoring and recording the device fault information.

[0072] The above Ethernet switching chip can provide an Ethernet interface to connect to the backplane and the front panel, and connect to the power amplifier, services, etc. through the backplane or the front panel, for data service transmission, control service transmission, log recording, power amplifier control, etc., and has network protocols such as layer 2 / layer 3.

[0073] Further, the power supply module is specifically configured to independently supply power to each communication module group;

[0074] The core processor is further configured to, when determining that a certain communication module group crashes, perform a cold start on the crashed communication module group by controlling the power supply module.

[0075] Further, the hardware structure of the radio frequency module is as Figure 3 shown, including: 5 first transceiver switching components, 5 PAs, 5 LNAs, 5 second transceiver switching components, and 1 combiner / divider and antenna;

[0076] The core processing module is further configured to output a control signal to the radio frequency module to switch the transceiver states of the first transceiver switching components and the second transceiver switching components;

[0077] The radio frequency module is specifically configured to, under the control of the control signal provided by the core processing module, respectively amplify and combine the wireless signals received from the GSM-R communication module, LTE-R communication module, 5G-R communication module, low-earth orbit communication satellite communication module, and public network communication module through the first transceiver switching component, PA (Power Amplifier), second transceiver switching component, combiner / divider, and antenna, and then transmit them through the antenna; and respectively distribute and perform gain compensation on the received wireless signals through the antenna, combiner / divider, second transceiver switching component, LNA (Low Noise Amplifier), and first transceiver switching component, and then send them to the corresponding communication modules.

[0078] Further, the multi-mode radio also includes GPS / Beidou: GPS / Beidou can not only be used for positioning but also as a precise clock source. Therefore, the GPS / Beidou circuit is retained in the design, and communication between GPS / Beidou and the CPU uses the UART interface.

[0079] Further, the interface module also includes: a serial port unit connected to the debugging device, a UBS interface unit for log management, an interface unit for power amplifier control, a front panel indicator interface unit, etc.

[0080] Further, the multi-mode radio also includes an I / O circuit: Many functional modules in the design of the vehicle-ground communication radio board require I / O control, such as power control of each module of GSM-R / LTE-R / 5G-R / satellite communication, watchdog feeding signals, indicator signals, etc.

[0081] Based on the same inventive concept, the embodiments of the present disclosure also provide a service processing method, the process of which is as Figure 5 shown, including the following steps:

[0082] Step 1: The core processing module receives service requirement information from the vehicle and determines the service ID;

[0083] The service attribute identifier, service communication model identifier, and service priority identifier carried in the above service requirement information.

[0084] Specifically, the core processing module uses the correspondence between service attributes, service communication models, service priorities, and service IDs to query the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the received service requirement message, and uses the queried service ID as the determined service ID.

[0085] The service attributes include: safety-related services and non-safety-related services. Safety-related services include: train control services and emergency services; non-safety-related services include operation and maintenance services.

[0086] After receiving the data sent by the vehicle-mounted terminal, the core processor parses the data. According to the data service attribute identifier carried in the service requirement information, it distinguishes the train control service, the operation and maintenance service, and the emergency service;

[0087] The data service attribute identifiers include: 0, 1, 2; where 0 represents the emergency service, 1 represents the train control service; 2 represents the operation and maintenance service.

[0088] The service communication models include: voice communication models 1 / 2 / 3, data communication models 1 / 2 / 3, and video communication models 1 / 2 / 3 / 4. The service priority QoS includes 6 levels, 0-5, with 0 having the highest priority and so on.

[0089] The service communication identifiers include: CS identifier, PS identifier, and VI identifier.

[0090] For example: If the service communication identifier is CS1 identifier, it belongs to the voice service communication model 1; if the service communication identifier is PS1, it belongs to the data service communication model 1; if the service communication identifier is VI1, it belongs to the video service communication model 1.

[0091] Suppose the data carried in the service message is <1 train control service - CS1 voice communication model 1 - Qos service priority is 0>. Then, using Table 1, the service ID can be determined as Class A service. This kind of service with high real-time, security, and continuity, the core processor will select a dedicated network for data transmission;

[0092] Suppose the data service carried in the service message is <2 operation and maintenance service - PS2 data communication model 2 - Qos service priority is 4>. Then, using Table 1, the service ID can be determined as Class C service. This kind of data service with non-security and allowing breakpoint resumption will select the public network for data transmission and preferentially select the public network for service transmission;

[0093] Suppose the emergency service carried in the service message is <0 emergency service - CS1 voice communication model 1 / PS1 data communication model 1 / VI1 video communication model 1 - Qos service priority is 0>. Then, using Table 1, the service ID can be determined as Class A service, and the satellite / special network channel will be preferentially selected.

[0094] As shown in Table 1, the service ID can include: A - F, and the corresponding meanings are railway emergency call, train operation-related dispatching, train operation information, train operation safety, operation and maintenance voice, operation and maintenance alarm, operation and maintenance data, operation and maintenance video, and emergency rescue data.

[0095] The correspondence between service attributes, service IDs, and other relevant information is shown in Table 1 below. It should be noted that Table 1 only exemplarily gives the correspondence.

[0096] Generally speaking, the priority of security-related services is higher than that of non-security-related services; voice services have high requirements for real-time performance, and the priority of voice services is higher than that of data services; therefore, in Table 1, the priority of voice in operation and maintenance is higher.

[0097]

[0098] Step 2: The core processing module identifies the communication network mode.

[0099] The core processing module uses existing communication network mode identification methods to identify the network mode. In addition, the core processing module and each communication module will transmit heartbeat information. Through the heartbeat information, it is ensured that the channels between the core processing module and the communication module are unobstructed. In addition, the network mode identifier is carried in the heartbeat information, carrying the identifiers of LTM / GSM-R / Satellite communication / LTW-M / 5G-R, and the core module can judge the corresponding relationship between the channel and the communication module.

[0100] Step 3: The core processing module determines whether it has received the information indicating successful network registration of the wireless module. If so, it proceeds to Step 4; if not, it jumps back to Step 2;

[0101] In the above Step 3, the core processing module will monitor the status of the network registration information of the wireless module through control information. When each communication module registers successfully, it will feedback a message indicating successful registration of the communication module to the core processing module; if the registration is unsuccessful, the communication module will periodically perform the action of registering the network until the network registration is successful and feedbacks the information to the core processing module.

[0102] Step 4: The core processing module determines the network mode with successful registration.

[0103] Step 5: The core processing module selects a communication network mode.

[0104] Specifically, the core processing module uses the correspondence between the service ID and the communication module to query the communication module corresponding to the determined service ID, and selects one communication module from the queried communication modules.

[0105] The service ID and the communication module are specifically shown in Table 2 below.

[0106]

[0107] Generally, the correspondence between service attributes and communication modules reflected in Table 2 is:

[0108] The train control service corresponds to the communication modules of satellite / GSM-R / LTE-R / 5G-R;

[0109] The emergency service preferentially corresponds to the low-earth orbit communication satellite communication module / 5G-R communication module; in a certain specific scenario (such as in mountainous areas where there is no network coverage), satellite communication is used for emergency communication for service transmission, and the inter-satellite IP method is adopted.

[0110] The operation and maintenance service corresponds to the public network communication module.

[0111] Since the voice service in the operation and maintenance service has a higher priority, and those with higher priority need to use the private network, the service ID corresponding to the voice service in the operation and maintenance service is B, which needs to use the private network or satellite.

[0112] Step 6: The core processing module uses the selected communication module to implement vehicle-ground / vehicle-vehicle service transmission.

[0113] Because in Step 2, the core module can judge the corresponding relationship between the channel and the communication module, so in this Step 6, when receiving service data from in-vehicle equipment, after the core module parses the data, it sends the service data into the channel corresponding to the selected communication module for transmission.

[0114] Meanwhile, the core processing module also controls the first transceiver switching component and the second transceiver switching component of the radio frequency module, and opens the transmission channel corresponding to the selected communication module in the radio frequency module to send the service data.

[0115] Specifically, when using a satellite communication module to transmit service data, the data service control plane encapsulates NAS signaling in the S-RRC message and transmits it to the on-board base station through the space-ground air interface link. The on-board base station performs relevant IP encapsulation and forwards it to the ground gateway station. The gateway station device converts it into a standard NG-AP message and carries it on the standard STCP to send to the 5G-R core network for processing. The data service user plane encapsulates the data service into an IP packet and converts the IP packet into S-PDCP information, which is transmitted to the on-board base station through the space-ground air interface link. The GTP tunnel established by the on-board base station forwards the encapsulated data with satellite identification to the ground gateway station. The gateway station device converts it into a standard S-PDCP data packet and sends it to the 5G-R core network for processing. The voice service control plane converts the voice signaling into S-PDCP information and transmits it to the on-board base station through the space-ground air interface link. The GTP tunnel established by the on-board base station forwards the encapsulated data with satellite identification to the ground gateway station. The gateway station device restores the voice signaling in the S-PDCP, converts it into an IP-based SIP signaling, and sends it to the IMS device of the 5G-R core network service system to complete the signaling processing. The voice service data plane converts the voice data into S-PDCP information and transmits it to the on-board base station through the space-ground air interface link. The on-board base station encapsulates it into a corresponding data packet and forwards it to the gateway station, restores the voice data in the S-PDCP, encapsulates it into an IP packet, and sends it to the IMS device of the 5G-R core network service system to complete the service processing.

[0116] Based on the same inventive concept, the present disclosure also provides a service processing device, including: a receiving unit, a service ID determination unit, a communication module determination unit, a selection unit, and a sending unit, where:

[0117] The receiving unit is configured to receive service requirement information from an in-vehicle device and network registration success messages from each communication module;

[0118] The service ID determination unit is configured to use the correspondence between service attributes, service communication models, service priorities, and service IDs to determine the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the service requirement information;

[0119] The communication module determination unit is configured to use the correspondence between service IDs and communication modules to find and determine the communication module corresponding to the determined service ID, where the communication modules include: a low-earth orbit communication satellite communication module, a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, and a public network communication module;

[0120] The selection unit is configured to select a communication module from the found communication modules based on the received network registration success messages;

[0121] A sending unit, configured to send service requirement information to a selected communication module.

[0122] Based on the same inventive concept, the present disclosure also provides a computer storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0123] Although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A multi-mode vehicle-mounted radio, characterized in that, Comprising: An interface module, a core processing module, a wireless communication module, a radio frequency module, and a power supply module; wherein: The core processing module includes: a core processor; the core processor is configured to receive service requirement information from an in-vehicle device and network registration success messages from each communication module through the interface module; determine the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the service requirement information by using the service attribute, service communication model, and the correspondence between service priority and service ID; find the communication module corresponding to the determined service ID by using the correspondence between the service ID and the communication module; select a communication module from the found communication modules based on the received network registration success message; and send the service requirement information to the selected communication module. The service ID includes: A - F, where A corresponds to railway emergency call, train operation-related dispatching, train operation information, and train operation safety; B corresponds to operation and maintenance voice, C corresponds to operation and maintenance alarm, D corresponds to operation and maintenance data, E corresponds to operation and maintenance video, and F corresponds to emergency rescue data; Service A and Service B correspond to low-earth orbit communication satellite communication modules, GSM-R communication modules, LTE-R communication modules, and 5G-R communication modules; Service C, Service D, and Service E preferentially correspond to public network modules and also correspond to low-earth orbit communication satellite communication modules; Service F corresponds to low-earth orbit communication satellite communication modules and 5G-R communication modules; The wireless communication module is connected to the core processing module through the interface module and includes: a GSM-R communication module, an LTE-R communication module, a 5G-R communication module, a low-earth orbit communication satellite communication module, and a public network communication module; each communication module is configured to register the corresponding network, send the network registration success message to the core processing module, and send the service requirement information to the radio frequency module; The radio frequency module is configured to modulate the service requirement information onto a radio frequency signal and transmit the radio frequency signal through an antenna; The power supply module is configured to convert the input voltage into the voltage required by the module and supply power to each module.

2. The multimode vehicle-mounted radio according to claim 1, wherein The radio frequency module includes: 5 first transceiver switching components, 5 PAs, 5 LNAs, 5 second transceiver switching components, 1 combiner / divider, and an antenna; The core processing module is further configured to output a control signal to the radio frequency module to switch the transceiver states of the first transceiver switching component and the second transceiver switching component; The radio frequency module is specifically configured to, under the control of the control signal, respectively amplify the power and combine the wireless signals received from the GSM-R communication module, LTE-R communication module, 5G-R communication module, low-earth orbit communication satellite communication module, and public network communication module through the first transceiver switching component, PA, second transceiver switching component, combiner / divider, and antenna, and then transmit them through the antenna; and respectively distribute and perform gain compensation on the received wireless signals through the antenna, combiner / divider, second transceiver switching component, LNA, and first transceiver switching component, and then send them to the corresponding communication module.

3. The multi-mode vehicle-mounted radio according to claim 1, wherein, The core processor is further configured to receive heartbeat messages of each communication module through channels between the core processor and each communication module, and determine the corresponding relationship between the channels and the communication modules by using the communication network mode identifiers carried in the heartbeat messages.

4. The multi-mode vehicle-mounted radio according to claim 1, characterized in that, The power supply module is specifically configured to independently supply power to each communication module; The core processor is further configured to, when determining that a certain communication module crashes, perform a cold start on the crashed communication module by controlling the power supply module.

5. The multi-mode vehicle-mounted radio according to claim 1, wherein It further includes: A communication switching module connected to the core processor; The interface module further includes an Ethernet interface unit connected to an extended service transmission device; The communication switching module includes: an Ethernet switching chip; The Ethernet switching chip is used for routing and forwarding of each service data.

6. The multi-mode vehicle-mounted radio according to claim 5, characterized in that It further includes: A Trace tracker connected to the core processor; The core processor is further configured to, when a communication failure occurs, trace events in the log through the Trace tracker, identify the failure point and cause of the failure, and generate a failure information record and a diagnostic report; The Ethernet switching chip is further used for log recording, real-time monitoring of the operating status of GSM-R / LTE-R / 5G-R / low-earth-orbit communication satellite communication modules, storing the log of each communication module, recording the transmission path of data packets in the network, determining the source, destination, and nodes passed by the data packets; and simultaneously monitoring and recording device failure information.

7. A service processing method, characterized in that, It includes: Receiving service requirement information from in-vehicle devices and network registration success messages from each communication module; Using the corresponding relationship between service attributes, service communication models, service priorities, and service IDs, determining the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the service requirement information. The service IDs include: A - F, where A corresponds to railway emergency calls, train operation-related dispatching, train operation information, and train operation safety; B corresponds to operation and maintenance voice, C corresponds to operation and maintenance alarms, D corresponds to operation and maintenance data, E corresponds to operation and maintenance video, and F corresponds to emergency rescue data; Services A and B correspond to low-earth-orbit communication satellite communication modules, GSM-R communication modules, LTE-R communication modules, and 5G-R communication modules; Services C, D, and E preferentially correspond to public network modules and also correspond to low-earth-orbit communication satellite communication modules; Service F corresponds to low-earth-orbit communication satellite communication modules and 5G-R communication modules; Using the corresponding relationship between service IDs and communication modules, searching for the communication module corresponding to the determined service ID, where the communication modules include: low-earth-orbit communication satellite communication modules, GSM-R communication modules, LTE-R communication modules, 5G-R communication modules, and public network communication modules; Based on the received network registration success messages, selecting a communication module from the found communication modules; Sending the service requirement information to the selected communication module.

8. A service processing device, characterized in that, It includes: A receiving unit, a service ID determination unit, a communication module determination unit, a selection unit, and a sending unit, where: The receiving unit is configured to receive service requirement information from in-vehicle devices and network registration success messages from each communication module; A service ID determination unit, which is configured to use the correspondence between service attributes, service communication models, and service priorities and service IDs to determine the service ID corresponding to the service attribute identifier, service communication model identifier, and service priority identifier carried in the service requirement information. The service IDs include: A - F, where A corresponds to railway emergency calls, train operation - related dispatching, train operation information, and train operation safety; B corresponds to operation and maintenance voice, C corresponds to operation and maintenance alarms, D corresponds to operation and maintenance data, E corresponds to operation and maintenance video, and F corresponds to emergency rescue data; Service A and Service B correspond to low - earth - orbit communication satellite communication modules, GSM - R communication modules, LTE - R communication modules, and 5G - R communication modules; Service C, Service D, and Service E preferentially correspond to public network modules and also correspond to low - earth - orbit communication satellite communication modules; Service F corresponds to low - earth - orbit communication satellite communication modules and 5G - R communication modules; A communication module determination unit, which is configured to use the correspondence between service IDs and communication modules to find the communication module corresponding to the determined service ID. The communication modules include: low - earth - orbit communication satellite communication modules, GSM - R communication modules, LTE - R communication modules, 5G - R communication modules, and public network communication modules; A selection unit, which is configured to select a communication module from the found communication modules based on the received network registration success message; A sending unit, which is configured to send the service requirement information to the selected communication module.

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