CN116980854A - Data transmission method, device and medium after integration of train multi-communication network - Google Patents
Data transmission method, device and medium after integration of train multi-communication network Download PDFInfo
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Abstract
The application discloses a data transmission method, a device and a medium after integration of multiple communication networks of a train, which are applied to the technical field of communication. In the method, the train adopts an integrated network structure, and the terminal equipment is divided into different priorities according to the functions of the terminal equipment in the train, and different types of data in the train are divided into different priorities. And then determining the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data. And finally, respectively distributing the data of each type in each terminal device to the corresponding network segments according to the priority order, and controlling each network segment to carry out data transmission according to the priority order so as to preferentially ensure the reliability and/or the real-time performance of the data with higher priority. According to the data importance degree and the data type of the terminal equipment, the data transmission network section and the data transmission priority are planned, the data transmission failure rate is reduced, the transmission efficiency is improved, and therefore normal data transmission is ensured.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, an apparatus, and a medium for data transmission after integration of multiple train communication networks.
Background
With the rapid development of digital information technology and network technology, the intelligent degree of rail vehicles or trackless vehicles is also higher and the transmission data amount is multiplied, and the application mode of the rail transit vehicle network is to simultaneously configure multiple sets of networks separated from each other, such as a train control network, an ethernet maintenance network, an expert diagnosis system, a passenger information system transmission network and a multimedia network, a train broadcasting system transmission network and a multimedia network, and other subsystem networks based on ethernet communication (such as a running part monitoring intranet, a vehicle door internal communication network and a pantograph video monitoring system internal communication network).
At present, a plurality of sets of networks which are separated from each other increase the complexity of a network topological structure, so that the design, operation and maintenance cost of the train is greatly increased. If a plurality of sets of vehicle-mounted networks separated from each other are integrated, the data transmission of the networks is not easy to manage, so that the failure rate is high, the data transmission efficiency is low, and the data cannot be normally transmitted.
Therefore, how to integrate and design multiple sets of vehicle-mounted networks separated from each other and ensure normal transmission of data is a problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a data transmission method, device and medium after fusion of multiple communication networks of a train, which are used for solving the problems of high failure rate and low efficiency in data transmission after integrated fusion design of multiple sets of mutually separated vehicle-mounted networks.
In order to solve the technical problems, the application provides a data transmission method after the integration of multiple communication networks of a train, wherein the train is of an integrated network structure, and the method comprises the following steps:
dividing each terminal device into different priorities according to the functions of each terminal device in the train;
dividing different types of data in the train into different priorities;
determining the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data;
respectively distributing various types of data in each terminal device to corresponding network segments according to the priority order;
and controlling each network segment to transmit data according to the priority order.
Preferably, the dividing each terminal device into different priorities according to the functions of each terminal device in the train includes:
dividing the terminal equipment related to traction, braking and driving safety into key terminal equipment;
dividing the terminal equipment with big data transmission requirement into special terminal equipment;
dividing the terminal equipment except the key terminal equipment and the special terminal equipment into common terminal equipment;
the priority of each terminal device is from high to low: the key terminal equipment, the common terminal equipment and the special terminal equipment.
Preferably, the classifying the different types of data in the train into different priorities includes:
dividing process data and message data of the train into first type data;
dividing the video file data of the train into second type data;
dividing the recorded file data of the train into third type data;
the priority of each type of data is from high to low: first type data, second type data, third type data.
Preferably, the method further comprises:
when the data transmission is congested and/or interfered, the broadcast domain of each message is limited according to the order of the data priority from low to high.
Preferably, each vehicle level network employs a two-wire communication network architecture of link aggregation or ring networks.
Preferably, the whole car communication network architecture employs a plurality of network consists when the number of train consists is greater than a preset value.
Preferably, when the train needs flexible consist, the whole car communication network architecture adopts multiple network consists according to a flexible consist scheme.
In order to solve the technical problem, the application also provides a data transmission device after the integration of the train multi-communication network, wherein the train is of an integrated network structure, and the data transmission device comprises:
the first dividing module is used for dividing each terminal device into different priorities according to the functions of each terminal device in the train;
the second dividing module is used for dividing different types of data in the train into different priorities;
a determining module, configured to determine the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data;
the distribution module is used for respectively distributing various types of data in the terminal equipment to the corresponding network segments according to the priority order;
and the control module is used for controlling the network segments to transmit data according to the priority order.
Preferably, the data transmission device after the integration of the train multi-communication network further comprises: and the limiting module is used for limiting the broadcasting domain of each message according to the order of the data priority from low to high when the data transmission is in communication congestion and/or communication interference.
In order to solve the technical problem, the application also provides a data transmission device after the integration of the train multi-communication network, which comprises the following components: a memory for storing a computer program;
and the processor is used for realizing the data transmission method after the integration of the train multi-communication network when executing the computer program.
In order to solve the technical problem, the application also provides a computer readable storage medium, wherein the computer readable storage medium is stored with a computer program, and the computer program realizes the steps of the data transmission method after the train multi-communication network fusion when being executed by a processor.
According to the data transmission method after the integration of the train multi-communication network, the communication networks of the train are integrated to realize integrated design, and compared with a plurality of sets of networks separated from each other, the design, operation and maintenance cost of the train is reduced. However, the problem of data transmission occurs, the failure rate is high, and the data transmission efficiency is low, namely, the data cannot be normally transmitted. Therefore, the scheme firstly divides each terminal device into different priorities according to the functions of each terminal device in the train, and divides different types of data in the train into different priorities. And then determining the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data. And finally, respectively distributing the data of each type in each terminal device to the corresponding network segments according to the priority order, and controlling each network segment to carry out data transmission according to the priority order so as to preferentially ensure the reliability and/or the real-time performance of the data with higher priority. According to the data importance degree and the data type of the terminal equipment, the data transmission network segments and the data transmission priorities are planned, the data transmission failure rate is reduced, and the transmission efficiency is improved, so that the normal transmission of the data is ensured, and the network utilization rate and the network safety are improved. According to the application, a plurality of sets of vehicle-mounted networks separated from each other are integrated, so that a plurality of networks such as a data transmission network, a multimedia network, a maintenance network, an information network and the like are integrated, a whole vehicle integrated data aorta is built, and the design, operation and maintenance costs of a train are reduced on the premise of ensuring safe running of the vehicle.
The application also provides a data transmission device and a computer readable storage medium after the integration of the train multi-communication network, which correspond to the method, so that the method has the same beneficial effects as the method.
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For a clearer description of embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a flowchart of a data transmission method after merging of multiple train communication networks according to an embodiment of the present application;
fig. 2 is a schematic diagram of a network segment division method of a multi-network convergence network according to an embodiment of the present application;
fig. 3 is a schematic diagram of a looped network rail transit vehicle communication network architecture based on multi-network integration according to an embodiment of the present application;
fig. 4 is a schematic diagram of a link aggregation rail transit vehicle communication network architecture based on multi-network integration according to an embodiment of the present application;
fig. 5 is a block diagram of a data transmission device after merging of multiple train communication networks according to an embodiment of the present application;
fig. 6 is a block diagram of a data transmission device after merging of multiple communication networks of a train according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present application.
The application provides a data transmission method, a device and a medium after the integration of multiple communication networks of a train, which are used for solving the problems of high failure rate and low efficiency during data transmission after the integrated integration design of multiple sets of mutually separated vehicle-mounted networks.
In order to better understand the aspects of the present application, the present application will be described in further detail with reference to the accompanying drawings and detailed description.
In order to solve the technical problems, the embodiment of the application provides a data transmission method after multi-communication network integration of a train, wherein the train is of an integrated network structure, a plurality of communication networks of the train are integrated to realize an integrated design, and compared with a plurality of networks separated from each other, the design, operation and maintenance costs of the train are reduced. Fig. 1 is a flowchart of a data transmission method after merging of multiple train communication networks according to an embodiment of the present application; as shown in fig. 1, the method comprises the steps of:
s10: and dividing the terminal equipment into different priorities according to the functions of the terminal equipment in the train.
S11: different types of data in the train are classified into different priorities.
S12: and determining the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data.
S13: and respectively distributing the data of each type in each terminal device to the corresponding network segment according to the priority order.
S14: and controlling each network segment to transmit data according to the priority order.
The application mainly discloses a rail transit communication network architecture and a control method based on multi-network integration, which can simplify the communication network architecture of rail transit vehicles, improve the safety and reliability of the network and reduce the design, operation and maintenance costs of trains. The core lies in according to the data importance of the terminal equipment and the transmission data type of the port, planning data transmission network segments, data transmission priorities and data transmission periods, dividing network segments and planning data transmission priorities, ensuring that control data, video data and maintenance data are not affected each other, and improving network utilization rate and network security.
In this embodiment, a specific scheme for dividing priority and a control scheme for data transmission are provided, and fig. 2 is a schematic diagram of a network segment dividing method of a multi-network convergence network provided in the embodiment of the present application; as shown in fig. 2, the method comprises the steps of:
s20: according to the data importance of the terminal equipment, the terminal equipment is divided into key terminal equipment, common terminal equipment and special terminal equipment.
The key terminal equipment refers to terminal equipment related to traction, braking, driving safety and the like, such as a traction system, a braking system, a control system, a signal system, a car door system, a fire disaster system and the like.
The general terminal device is other devices than the key terminal device and the special terminal device, such as an air conditioning system, a traveling part fault diagnosis system, a passenger information system, a train broadcasting system, a pantograph video monitoring system, a contact net detection system, a track detection system, a wireless transmission system, and the like.
The special terminal equipment is terminal equipment with large data transmission requirements, such as equipment with video monitoring data transmission requirements, for example, a passenger information system, a train broadcasting system, a pantograph video monitoring system, a contact net detection system, a track detection system and the like.
S21: according to the transmission data type of the terminal equipment port, the terminal equipment port is divided into a control port, a video port and a maintenance port.
The control port transmits the process data and the message data, the real-time requirement is high, and the data transmitted by the port corresponds to the first type data. The video port transmits video files, the real-time requirement is higher, and the data transmitted by the port corresponds to the second type of data. And maintaining a port transmission record file, wherein the real-time requirement is low, and the data transmitted by the port corresponds to the third type of data.
S22: the control data ports of the key terminal equipment are allocated to a separate transmission network segment (e.g., network segment 1), the control data ports of the general terminal equipment are allocated to a separate transmission network segment (e.g., network segment 2), the video data ports of the special terminal equipment are allocated to a separate transmission network segment (e.g., network segment 3), and the maintenance data ports of all the equipment are allocated to a separate transmission network segment (e.g., network segment 4).
In the actual data transmission process, firstly judging the network segment where the transmission data is located, if the network segment is the network segment 1: the priority of data transmission is highest, and the data transmission must meet the requirements of reliability and real-time. If it is network segment 2: the priority of data transmission is only inferior to that of the network segment 1, and the requirements of the reliability and the instantaneity of the data transmission of the transmission network segment 2 are further ensured on the premise of ensuring the reliability of the data transmission of the network segment 1. If it is network segment 3: the priority of data transmission is only inferior to that of network segments 1 and 2, and the requirements of data transmission reliability and instantaneity of the transmission network segment 3 are further ensured on the premise of ensuring the reliability of the data transmission of the network segments 1 and 2. If it is network segment 4: the priority of data transmission is the lowest, and the requirements of the data transmission reliability and the real-time performance of the transmission network segment 4 are further ensured on the premise of ensuring the data transmission reliability of the network segments 1, 2 and 3.
The embodiment is assembled into a whole vehicle integrated data aorta, simplifies a vehicle-mounted network structure, reduces wiring and maintenance costs of the whole vehicle, improves the utilization rate of monitoring data, and builds a vehicle-mounted platform foundation for a health diagnosis system and a big data platform. The method has the advantages of high reliability, low design cost, high transmission efficiency and the like.
In addition, in practical application, according to the traffic prediction values of the data transmitted by the terminal equipment, the vehicle-level communication node and the train-level communication node, traffic management and current limiting control can be carried out on each communication port, so that big data communication congestion can be avoided. The firewall can be set according to the requirement, so that an external system is prevented from accessing the vehicle-mounted network, and network storm is avoided. When network data is in communication congestion or communication interference, the broadcasting domain of the message can be limited according to the sequence of the data transmission priority from low to high according to the network segment division and the data importance, the flow of unnecessary messages in the network is reduced, and the network performance is improved. Therefore, the method of dividing network segments and planning data transmission priority, flow control, firewall and the like can improve network utilization rate and network security.
The embodiment of the application provides a rail transit vehicle communication network architecture based on multi-network integration, which specifically comprises a train-level communication node, a relay node, a vehicle-level communication node, terminal equipment, a train-level communication bus, a vehicle-level communication bus and an equipment-level communication bus. Typically, a vehicle-level communication node (corresponding to a car of a train) includes a plurality of terminal devices, and a train-level communication node includes a plurality of vehicle-level communication nodes. A train may be considered as a train-level communication node, or in the case of a large number of cars, a train may be divided into a plurality of train-level communication nodes, each including a respective corresponding train-level communication node. For example, different marshalling modes can be adopted according to the length of the train marshalling and the transmission data quantity, when the train marshalling is more than or equal to n (preset value), the whole train communication network architecture can adopt two network marshalling (one network marshalling corresponds to one train-level communication node), and when the train marshalling is less than n, the whole train communication network architecture can adopt one network marshalling. In addition, when the train needs to be flexibly grouped, the whole vehicle communication network architecture can also adopt a plurality of network groups, for example, each vehicle-level communication node can be used as an independent train-level communication node in actual application, and any train-level communication node can be removed at the moment, so that the flexible grouping is realized.
Additionally, in implementations, the train-level communication bus may employ a two-wire communication network architecture in a link aggregation manner. If the requirement of reconnection is not met and the whole vehicle communication network architecture adopts one network group, a train-level network can not be configured. According to actual needs, the end carriage can be provided with a plurality of train-level communication nodes, and the middle carriage can be provided with a plurality of relay nodes according to needs. The train-level communication node is connected to the relay node of the middle train carriage through a communication cable, so that the communication function between two network groups can be realized. The train-level communication node is connected to the external reconnection coupler through a communication cable, so that the multi-train reconnection communication function can be realized. The train-level communication cable forms a double-line redundancy network arrangement, single-line faults do not affect Ethernet communication, single communication node or relay node faults can be isolated through a bypass function, and Ethernet communication is not affected.
The vehicle-level communication bus may employ a two-wire communication network architecture of a link aggregation or ring network. A plurality of vehicle-level communication nodes are configured for each car according to the requirements, and the vehicle-level communication nodes are connected to the train-level communication nodes through communication cables, so that the communication functions of the vehicle level and the train level can be realized. The vehicle-level communication node is connected to the vehicle-level communication node of the other vehicle through a communication cable, so that the communication function of the vehicle-level network in the consist can be realized. The vehicle-level communication node is connected with the terminal equipment through a communication cable, and can realize data communication with the terminal equipment. When the vehicle level adopts a link aggregation double-line communication network architecture, two parallel communication buses are built between vehicle level network nodes in the group, the Ethernet communication is not affected by single line faults, and the Ethernet communication is not affected by single communication node faults which can be isolated through a bypass function. When the vehicle level adopts a double-wire communication network architecture of a ring network, a ring network communication bus is formed between vehicle level network nodes in the group, the Ethernet communication is not affected by single line faults, and the Ethernet communication is not affected by single communication node faults.
The terminal device may be connected to the vehicle-level communication node in the vehicle cabin through a number of network ports (e.g., 2 or 3) according to the importance of the data or the maintenance requirements. The communication buses of the train level, the vehicle level and the equipment level can adopt double-line redundancy communication, train control data is preferentially transmitted on the line A, and when the line A fails, the communication buses are automatically switched to the line B, and maintenance or video data is transmitted on the line B.
According to the data transmission method after the integration of the train multi-communication network, provided by the embodiment of the application, the communication networks of the train are integrated to realize an integrated design, and compared with a plurality of sets of networks separated from each other, the design, operation and maintenance costs of the train are reduced. However, the problem of data transmission occurs, the failure rate is high, and the data transmission efficiency is low, namely, the data cannot be normally transmitted. Therefore, the scheme firstly divides each terminal device into different priorities according to the functions of each terminal device in the train, and divides different types of data in the train into different priorities. And then determining the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data. And finally, respectively distributing the data of each type in each terminal device to the corresponding network segments according to the priority order, and controlling each network segment to carry out data transmission according to the priority order so as to preferentially ensure the reliability and/or the real-time performance of the data with higher priority. According to the data importance degree and the data type of the terminal equipment, the data transmission network segments and the data transmission priorities are planned, the data transmission failure rate is reduced, and the transmission efficiency is improved, so that the normal transmission of the data is ensured, and the network utilization rate and the network safety are improved. According to the embodiment of the application, a plurality of sets of vehicle-mounted networks which are separated from each other are integrated, so that a plurality of networks such as a data transmission network, a multimedia network, a maintenance network, an information network and the like are integrated, a whole vehicle integrated data aorta is formed, and the design, operation and maintenance costs of a train are reduced on the premise of ensuring safe running of the vehicle.
In the above embodiment, it is mentioned that each terminal device needs to be divided into different priorities according to the functions of each terminal device in the train, but the actual division manner is not limited, and this embodiment provides a specific division scheme. Terminal devices associated with traction, braking, driving safety are classified as critical terminal devices, such as traction systems, braking systems, control, signaling systems, door systems, fire systems, etc., which have the highest priority. Terminal equipment with large data transmission requirements is divided into special terminal equipment, such as equipment with video monitoring data transmission requirements, for example, passenger information systems, train broadcasting systems, pantograph video monitoring systems, overhead line system detection systems, track detection systems and the like, and the priority of the equipment is lowest. Terminal apparatuses other than the key terminal apparatus and the special terminal apparatus are classified into general terminal apparatuses such as an air conditioning system, a traveling section fault diagnosis system, a passenger information system, a train broadcasting system, a pantograph video monitoring system, a contact net detection system, a track detection system, a wireless transmission system, and the like. The priority of each terminal device is from high to low: key terminal equipment, common terminal equipment and special terminal equipment.
In practical application, different types of data in the train are required to be divided into different priorities, and the different types of data are transmitted by the corresponding ports respectively, namely, the transmission ports are divided into different priorities. The embodiment of the application provides a specific dividing scheme, wherein a control port transmits process data and message data, the real-time requirement is high, and the process data and the message data of a train are divided into first type data. The video port transmits video files, the real-time requirement is high, and the video file data of the train are divided into second type data. The maintenance port transmits the record file, so that the real-time requirement is low, and the record file data of the train is divided into the third type of data. The priority of each type of data is from high to low: first type data, second type data, third type data.
In practical application, each vehicle-level network adopts a two-wire communication network architecture of link aggregation or looped network. Fig. 3 is a schematic diagram of a looped network rail transit vehicle communication network architecture based on multi-network integration according to an embodiment of the present application; as shown in fig. 3, the rail transit vehicle communication network architecture based on the multi-network convergence includes a train-level communication node 1, a train-level communication node 2, a train-level communication node 3, a train-level communication node 4, a relay node 1, relay nodes 2, … …, a relay node m, a vehicle-level communication node 1, a vehicle-level communication node 2, … …, a vehicle-level communication node 2n, a terminal device 1, a terminal device 2, … …, a terminal device 2q, a train-level communication bus a, a train-level communication bus B, a vehicle-level communication bus a, a vehicle-level communication bus B, a device-level communication bus a, and a device-level communication bus B. Each vehicle-level communication node is connected in a ring network.
Fig. 4 is a schematic diagram of a link aggregation rail transit vehicle communication network architecture based on multi-network integration according to an embodiment of the present application; as shown in fig. 4 (each node and the communication bus are the same as fig. 3), the vehicle-level communication bus adopts a link-converged dual-line communication network architecture, two parallel communication buses are built between vehicle-level network nodes in a group, the ethernet communication is not affected by single line faults, and single communication node faults can be isolated by a bypass function and the ethernet communication is not affected.
The vehicle-level communication bus adopts a two-line communication network architecture of a link aggregation or ring network. And a plurality of vehicle-level communication nodes are configured for each vehicle compartment according to the requirement. The vehicle-level communication node is connected to the train-level communication node through a communication cable, so that the communication functions of the vehicle level and the train level can be realized. The vehicle-level communication node is connected to the vehicle-level communication node of the other vehicle through a communication cable, so that the communication function of the vehicle-level network in the consist can be realized. The vehicle-level communication node is connected with the terminal equipment through a communication cable, and can realize data communication with the terminal equipment. When the vehicle level adopts a double-wire communication network architecture of a ring network, a ring network communication bus is formed between vehicle level network nodes in the group, the Ethernet communication is not affected by single line faults, and the Ethernet communication is not affected by single communication node faults.
In practical application, different grouping modes can be adopted according to the grouping length and the transmission data quantity, and the embodiment provides a specific scheme. For example, when the train consist is greater than or equal to n (n is a preset value and can be set to 6), the whole train communication network architecture can adopt two network consists; when the train consists < n, the whole vehicle communication network architecture can adopt one network consist; when the train needs flexible grouping, the whole car communication network architecture can adopt a plurality of network groupings.
In the above embodiment, the detailed description is given to the data transmission method after the train multi-communication network fusion, and the application also provides the corresponding embodiment of the data transmission device after the train multi-communication network fusion. It should be noted that the present application describes an embodiment of the device portion from two angles, one based on the angle of the functional module and the other based on the angle of the hardware.
Based on the angle of the functional module, the embodiment provides a data transmission device after the integration of multiple communication networks of a train, wherein the train is of an integrated network structure. Fig. 5 is a block diagram of a data transmission device after merging of multiple communication networks of a train, which is provided in an embodiment of the present application, as shown in fig. 5, where the device includes:
a first dividing module 10, configured to divide each terminal device into different priorities according to functions of each terminal device in the train;
a second dividing module 11, configured to divide different types of data in the train into different priorities;
a determining module 12, configured to determine the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data;
the allocation module 13 is configured to allocate each type of data in each terminal device to a corresponding network segment according to the priority order;
the control module 14 is configured to control each network segment to perform data transmission according to the priority order.
Since the embodiments of the apparatus portion and the embodiments of the method portion correspond to each other, the embodiments of the apparatus portion are referred to the description of the embodiments of the method portion, and are not repeated herein.
As a preferred embodiment, the data transmission device after the integration of the train multi-communication network further includes: and the limiting module is used for limiting the broadcasting domain of each message according to the order of the data priority from low to high when the data transmission is in communication congestion and/or communication interference.
The data transmission device after the integration of the train multi-communication network provided by the embodiment corresponds to the method, so that the data transmission device has the same beneficial effects as the method.
Based on the hardware angle, the embodiment provides another data transmission device after train multi-communication network fusion, fig. 6 is a structural diagram of the data transmission device after train multi-communication network fusion provided by another embodiment of the present application, as shown in fig. 6, where the data transmission device after train multi-communication network fusion includes: a memory 20 for storing a computer program;
a processor 21 for implementing the steps of the data transmission method after train multi-communication network integration as mentioned in the above embodiments when executing the computer program.
Processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 may be implemented in hardware in at least one of a digital signal processor (Digital Signal Processor, DSP), a Field programmable gate array (Field-Programmable Gate Array, FPGA), a programmable logic array (Programmable Logic Array, PLA). The processor 21 may also comprise a main processor, which is a processor for processing data in an awake state, also called central processor (Central Processing Unit, CPU), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with an image processor (Graphics Processing Unit, GPU) for taking care of rendering and rendering of the content that the display screen is required to display. In some embodiments, the processor 21 may also include an artificial intelligence (Artificial Intelligence, AI) processor for processing computing operations related to machine learning.
Memory 20 may include one or more computer-readable storage media, which may be non-transitory. Memory 20 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used for storing a computer program 201, where the computer program, after being loaded and executed by the processor 21, can implement the relevant steps of the data transmission method after the train multi-communication network fusion disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may further include an operating system 202, data 203, and the like, where the storage manner may be transient storage or permanent storage. The operating system 202 may include Windows, unix, linux, among others. The data 203 may include, but is not limited to, data related to a data transmission method after the integration of the train multi-communication network, and the like.
In some embodiments, the data transmission device after the integration of the train multi-communication network may further include a display 22, an input/output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.
It will be appreciated by those skilled in the art that the structure shown in the figures does not constitute a limitation of the data transmission device after the integration of the train multiple communication network, and may include more or less components than those shown.
The data transmission device after the integration of the train multi-communication network provided by the embodiment of the application comprises a memory and a processor, wherein the processor can realize the following method when executing the program stored in the memory: a data transmission method after the integration of multiple communication networks of a train.
The data transmission device after the integration of the train multi-communication network provided by the embodiment corresponds to the method, so that the data transmission device has the same beneficial effects as the method.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when executed by a processor, performs the steps as described in the method embodiments above.
It will be appreciated that the methods of the above embodiments, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored on a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution contributing to the prior art, or may be embodied in the form of a software product stored in a storage medium, performing all or part of the steps of the method described in the various embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The computer readable storage medium provided in the present embodiment corresponds to the above method, and thus has the same advantageous effects as the above method.
The data transmission method, the device and the medium after the integration of the train multi-communication network are provided by the application are described in detail. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. The data transmission method after the integration of the train multi-communication network is characterized in that the train is of an integrated network structure and comprises the following steps:
dividing each terminal device into different priorities according to the functions of each terminal device in the train;
dividing different types of data in the train into different priorities;
determining the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data;
respectively distributing various types of data in each terminal device to corresponding network segments according to the priority order;
and controlling each network segment to transmit data according to the priority order.
2. The method for data transmission after merging of multiple communication networks for a train according to claim 1, wherein the dividing each terminal device into different priorities according to functions of each terminal device in the train comprises:
dividing the terminal equipment related to traction, braking and driving safety into key terminal equipment;
dividing the terminal equipment with big data transmission requirement into special terminal equipment;
dividing the terminal equipment except the key terminal equipment and the special terminal equipment into common terminal equipment;
the priority of each terminal device is from high to low: the key terminal equipment, the common terminal equipment and the special terminal equipment.
3. The method for data transmission after merging of multiple communication networks of a train according to claim 2, wherein the dividing the different types of data in the train into different priorities includes:
dividing process data and message data of the train into first type data;
dividing the video file data of the train into second type data;
dividing the recorded file data of the train into third type data;
the priority of each type of data is from high to low: first type data, second type data, third type data.
4. The method for data transmission after merging of multiple communication networks for a train according to claim 3, further comprising:
when the data transmission is congested and/or interfered, the broadcast domain of each message is limited according to the order of the data priority from low to high.
5. The method for data transmission after merging of multiple train communication networks according to any one of claims 1 to 4, wherein each vehicle-level network adopts a two-wire communication network architecture of link aggregation or ring network.
6. The method for data transmission after merging of multiple communication networks for a train according to claim 5, wherein the whole train communication network architecture adopts a plurality of network groups when the number of the train groups is greater than a preset value.
7. The method for data transmission after multi-communication network convergence of a train according to claim 6, wherein when the train needs flexible grouping, the whole-train communication network architecture adopts a plurality of network groupings according to a flexible grouping scheme.
8. The utility model provides a data transmission device after train multi-communication network fuses which characterized in that, the train is integrated network structure, includes:
the first dividing module is used for dividing each terminal device into different priorities according to the functions of each terminal device in the train;
the second dividing module is used for dividing different types of data in the train into different priorities;
a determining module, configured to determine the priority of each type of data in each terminal device according to the priority of each terminal device and the priority of each type of data;
the distribution module is used for respectively distributing various types of data in the terminal equipment to the corresponding network segments according to the priority order;
and the control module is used for controlling the network segments to transmit data according to the priority order.
9. The data transmission device after the integration of the train multi-communication network is characterized by comprising a memory for storing a computer program;
a processor for implementing the steps of the data transmission method after train multi-communication network integration according to any one of claims 1 to 7 when executing the computer program.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the data transmission method after train multi-communication network fusion according to any of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117692917A (en) * | 2024-02-01 | 2024-03-12 | 苏州抖文信息科技有限公司 | Relay control system for wireless communication network |
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