CN112319551A - Wireless communication method and system for train carriage - Google Patents
Wireless communication method and system for train carriage Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000006855 networking Effects 0.000 claims abstract description 96
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
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Abstract
The embodiment of the invention provides a wireless communication method and a wireless communication system for train carriages, which comprise the following steps: wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems; connecting a first subsystem set in the plurality of wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and connecting the remaining second subsystem sets with a second wireless networking mode in a star networking mode; and the first wireless assembly network and the second wireless assembly network are respectively accessed to the ETB network to complete the communication among the subsystems. The compartment wireless communication networking scheme provided by the embodiment of the invention provides backup networking, realizes redundant backup of key vehicle-mounted subsystems, effectively reduces the number of vehicle-mounted cables by applying wireless communication while ensuring the safe operation of a train, reduces the equipment cost and the maintenance difficulty, and improves the flexibility of upgrading the system functions.
Description
Technical Field
The invention relates to the technical field of rail transit wireless communication, in particular to a wireless communication method and a wireless communication system for train carriages.
Background
With the rapid development of the rail transit industry, subsystems in train carriages are more and more, and networking of a vehicle-mounted network is more and more complex.
The existing carriage subsystems all adopt wired networking, each subsystem has a set of networking and technology, communication protocols are different, for example, each system such as PIS, PA and CCTV is an independent networking, so that cables in a carriage are increased rapidly, and communication difficulty among the subsystems is increased more and more.
Therefore, a new communication method for the subsystems in the vehicle cabin needs to be provided to solve the existing problems.
Disclosure of Invention
The embodiment of the invention provides a wireless communication method and a wireless communication system for a train carriage, which are used for solving the defects of complex networking and difficult maintenance caused by wired communication between subsystems in the carriage in the prior art.
In a first aspect, an embodiment of the present invention provides a wireless communication method for use in a train car, including:
wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems;
connecting a first subsystem set in the plurality of wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and connecting the remaining second subsystem sets with a second wireless networking mode in a star networking mode;
and the first wireless assembly network and the second wireless assembly network are respectively accessed to the ETB network to complete the communication among the subsystems.
Further, wireless transformation is carried out to a plurality of subsystems in the train carriage, obtains a plurality of wireless subsystems, specifically includes:
replacing a vehicle-mounted network cable connected with the first subsystem set in the train carriage with a wireless connection, and acquiring and testing wireless performance indexes of the first subsystem set;
and after the wireless performance indexes meet preset performance indexes, replacing the vehicle-mounted network cables connected with the second subsystem set with wireless connection until wireless transformation of all the subsystems is completed to obtain the plurality of wireless subsystems.
Further, the connecting a first subsystem set of the wireless subsystems with a first wireless component network in a dual-homing backup networking mode, and the connecting the remaining second subsystem set with a second wireless component network in a star networking mode specifically includes:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers the data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a 5G V2X module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the two parallel redundant backup ETB nodes by adopting the preset connection mode and through the 5G V2X module.
Further, the connecting a first subsystem set of the wireless subsystems with a first wireless networking in a dual-homing backup networking mode, and the remaining second subsystem set with a second wireless networking in a star networking mode, further comprises:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a WiFi6 module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the ETB nodes of the two parallel redundant backups in the preset connection mode through the WiFi6 module.
Further, the connecting a first subsystem set of the wireless subsystems with a first wireless networking in a dual-homing backup networking mode, and the remaining second subsystem set with a second wireless networking in a star networking mode, further comprises:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers the data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a 5G V2X module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the two parallel redundant backup ETB nodes by adopting the preset connection mode and a WiFi6 module.
Further, the first set of subsystems includes time-sensitive subsystems, and the second set of subsystems includes time-insensitive subsystems;
the first wireless component network comprises a secure wireless component network, and the second wireless component network comprises a common wireless component network.
Further, the preset connection mode includes direct connection and convergence connection through a router.
In a second aspect, an embodiment of the present invention further provides a wireless communication system for use in a train car, including:
the transformation module is used for wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems;
the first networking module is used for connecting a first subsystem set in the wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and the rest second subsystem sets are connected with a second wireless networking mode in a star networking mode;
and the second networking module is used for accessing the first wireless networking module and the second wireless networking module into the ETB network respectively to complete the communication among the subsystems.
In a third aspect, an embodiment of the present invention further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and running on the processor, where the processor executes the program to implement the steps of any one of the above-mentioned wireless communication methods for train cars.
In a fourth aspect, the present invention further provides a non-transitory computer readable storage medium, on which a computer program is stored, the computer program, when executed by a processor, implementing the steps of the wireless communication method for use in a train car as described in any one of the above.
According to the wireless communication method and the wireless communication system for the train carriages, provided by the embodiment of the invention, through the provided carriage wireless communication networking scheme and the provided backup networking, the redundant backup of the key vehicle-mounted subsystem is realized, the number of vehicle-mounted cables is effectively reduced by the application of the wireless communication while the safe operation of the train is ensured, the equipment cost and the maintenance difficulty are reduced, and the flexibility of the system function upgrading is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a wireless communication method for train cars according to an embodiment of the present invention;
fig. 2 is a block diagram of a wireless communication networking based on 5G V2X according to an embodiment of the present invention;
fig. 3 is a block diagram of a wireless communication networking based on WiFi6 provided by an embodiment of the present invention;
fig. 4 is a block diagram of a hybrid wireless communication networking based on 5G V2X and WiFi6 provided by an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a wireless communication system for use in train cars according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Aiming at the problems of complex network topology, multiple interfaces, weak interoperability among subsystems, mutual influence and the like of subsystems in an urban rail transit train, the embodiment of the invention firstly applies a wireless communication technology to carriage internal communication, realizes the interconnection of all vehicle-mounted equipment through a uniform wireless network, effectively ensures the safe and reliable transmission of a keyword system and information through the design of a redundant backup network, and ensures the safe operation of a vehicle.
Fig. 1 is a schematic flow chart of a wireless communication method for train cars according to an embodiment of the present invention, as shown in fig. 1, including:
s1, wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems;
the wired vehicle-mounted network cable connection mode of a plurality of original subsystems of the carriage is modified and replaced by a wireless connection mode, namely all the subsystems are communicated in a wireless mode.
S2, connecting a first subsystem set in the wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and connecting the remaining second subsystem sets with a second wireless networking mode in a star networking mode;
aiming at the characteristics of each subsystem, the subsystems are divided into a first subsystem set sensitive to time and a second subsystem insensitive to time, and the requirements of different types of subsystems on communication indexes are different;
the wireless networking in the carriage adopts star networking for non-key subsystems, the dual-homing backup wireless networking is adopted for key subsystems, and the key subsystems are integrated with 2 wireless communication modules to form a redundant communication link with a wireless backbone network node. From the safety perspective, the time-insensitive subsystem only needs to integrate one wireless communication module, which is called wireless terminal device (WLED, wireless end-device) for short, the time-sensitive subsystem needs to integrate 2 wireless communication modules, which is called secure wireless terminal device (WLED-S, wireless end-device-security for short), the wireless ECN communicating with the wireless terminal device is called wireless component network (WLCN, wireless component network) for short, and the wireless ECN communicating with the secure wireless terminal device is called secure wireless component network (WLCN-S, wireless component network-security for short).
The two subsystems are respectively connected with the corresponding wireless combination network and then are accessed into the backbone communication network.
And S3, the first wireless component network and the second wireless component network are respectively accessed to the ETB network, and communication among the subsystems is completed.
And finally, the corresponding wireless assembly networks are respectively connected into the ETB backbone network, so that the subsystems are wirelessly communicated.
The embodiment of the invention realizes the redundant backup of the key vehicle-mounted subsystem by providing the carriage wireless communication networking scheme and providing the backup networking, effectively reduces the number of vehicle-mounted cables by applying the wireless communication while ensuring the safe operation of the train, reduces the equipment cost and the maintenance difficulty, and improves the flexibility of upgrading the system function.
Based on the above embodiment, step S1 in the method specifically includes:
replacing a vehicle-mounted network cable connected with the first subsystem set in the train carriage with a wireless connection, and acquiring and testing wireless performance indexes of the first subsystem set;
and after the wireless performance indexes meet preset performance indexes, replacing the vehicle-mounted network cables connected with the second subsystem set with wireless connection until wireless transformation of all the subsystems is completed to obtain the plurality of wireless subsystems.
Specifically, because the wireless transformation engineering quantity is large, the transformation of each system is carried out according to steps, firstly, the wireless transformation is carried out on the second subsystem set, namely the time insensitive subsystem, and then the wireless transformation is carried out on the first subsystem, namely the time sensitive subsystem after the performances of the wireless communication technology, such as time delay, packet loss, jitter and the like, are gradually stabilized and meet the transmission requirement of the time sensitive subsystem, so that the stable transition of the whole transformation can be ensured.
The embodiment of the invention realizes the wireless network of the whole vehicle, avoids the use of a large number of cables, effectively reduces the equipment cost and the operation and maintenance difficulty, and improves the flexibility of system upgrading.
Based on any of the above embodiments, step S2 in the method specifically includes:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers the data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a 5G V2X module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the two parallel redundant backup ETB nodes by adopting the preset connection mode and through the 5G V2X module.
Specifically, the embodiment of the present invention employs a wireless communication scheme based on 5G V2X, as shown in fig. 2, 2 vehicle-mounted backbone network ETB nodes are deployed in each car, the ETB employs parallel redundancy backup, and the WLCN backbone network and the terminal both employ a vehicle-mounted 5G V2X module for communication. The WLCN-S gathers data of a key subsystem and passes through a router, if the number of subsystems is large, the router is required to be added if ETB interfaces are insufficient, the ETB interfaces are respectively accessed into parallel redundant ETB backbone networks, the WLCN gathers data of non-key subsystems and accesses a WLTB through the router, because V2X adopts a broadcasting mechanism, each subsystem is integrated with a V2X module, the key subsystem needs to be redundant backup of a wireless network and needs to be respectively accessed into 2 backup WLCN-S, and a common subsystem only needs to be accessed into one WLCN.
The 5G V2X technology adopted by the embodiment of the invention provides good network performance based on the advantages of low time delay, high reliability and the like of a 5G network, and simultaneously adopts special frequency points to effectively overcome the interference problem.
Based on any of the above embodiments, step S2 in the method further includes:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a WiFi6 module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the ETB nodes of the two parallel redundant backups in the preset connection mode through the WiFi6 module.
Specifically, the embodiment of the present invention adopts a wireless communication scheme based on WiFi6, as shown in fig. 3, 2 vehicle backbone network ETB nodes are deployed in each car, the ETB adopts parallel redundant backup, and the WLCN backbone network and the terminal both adopt a WiFi6 module for communication. The WLCN-S gathers data of a key subsystem and passes through a router, if the number of subsystems is large, an ETB interface is insufficient, the router needs to be added, parallel redundant ETB backbone networks are respectively accessed, the WLCN gathers data of a non-key subsystem and accesses a WLTB through the router, the key subsystem needs to make redundant backup of a wireless network and needs to be respectively accessed into 2 backup WLCN-S, and a common subsystem only needs to be accessed into one WLCN.
The advantages of WiFi6 technology are that it can provide good network performance based on the higher throughput, lower latency, and higher number of access terminals that can be provided compared to previous generations of WiFi technology. WiFi6 can support uplink and downlink MU-MIMO simultaneously, so that a plurality of users can upload and download simultaneously, the spectrum efficiency is further improved, the uplink transmission time is greatly shortened, and the time for the users to use the network is reduced. Compared with the OFDM technology of WiFi5, WiFi6 adopts a more advanced OFDMA technology, allows multiple users to share the same channel, improves the channel use efficiency, reduces the queuing and forwarding time of the users, and reduces the transmission time. The characteristic is particularly suitable for low-data-volume and high-frequency communication of the vehicle-mounted module, frequency spectrum conflict and queuing waiting time can be effectively reduced, and transmission delay is effectively reduced. WiFi6 supports two frequency channels 2.4G and 5G simultaneously, compares traditional 2.4G interference problem better solution, and the cost is lower.
Based on any of the above embodiments, step S2 in the method further includes:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers the data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a 5G V2X module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the two parallel redundant backup ETB nodes by adopting the preset connection mode and a WiFi6 module.
Specifically, the embodiment of the present invention employs a hybrid networking scheme based on 5G V2X and WiFi6, as shown in fig. 4, 2 technologies of the foregoing embodiment are merged, a security subsystem employs a 5G V2X technology in consideration of performance such as time delay and packet loss, and a non-security subsystem employs a WiFi6 technology for wireless communication. Therefore, the advantages of the 2 technologies can be fully exerted, the performance of the safety subsystem is effectively ensured, and the cost is also considered on the basis of meeting the communication requirement of the non-safety subsystem.
Each carriage is provided with 2 vehicle-mounted backbone network ETB nodes, ETB adopts parallel redundant backup, and WLCN backbone networks and terminals adopt WiFi6 modules for communication. The WLCN-S gathers data of a key subsystem and accesses the data through a router and a 5G V2X module, if the number of subsystems is large, the router is needed to be added if ETB interfaces are insufficient, the ETB interfaces are respectively accessed to parallel redundant ETB backbone networks, the WLCN gathers data of non-key subsystems and accesses a WLTB through the router, the key subsystem needs to make redundant backup of a wireless network and needs to access 2 backup WLCN-S respectively, and a common subsystem only needs to access one WLCN.
The embodiment of the invention realizes the networking structure in the carriage based on the all-wireless communication, simplifies the vehicle-mounted network and realizes the interface unification of the vehicle-mounted subsystem; meanwhile, a redundant backup networking scheme of a wireless network is realized, and the transmission reliability of the vehicle-mounted subsystem is effectively ensured.
The following describes a wireless communication system for train cars according to an embodiment of the present invention, and the wireless communication system for train cars described below and the wireless communication system for train cars described above may be referred to correspondingly.
Fig. 5 is a schematic structural diagram of a wireless communication system for use in train cars according to an embodiment of the present invention, and as shown in fig. 5, the wireless communication system includes: a reconstruction module 51, a first networking module 52 and a second networking module 53; wherein:
the transformation module 51 is used for wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems; the first networking module 52 is configured to connect a first subsystem set of the plurality of wireless subsystems with a first wireless networking in a dual-homing backup networking manner, and connect the remaining second subsystem set with a second wireless networking in a star networking manner; the second networking module 53 is configured to access the first wireless networking and the second wireless networking to the ETB network, respectively, to complete communication among the subsystems.
The embodiment of the invention realizes the redundant backup of the key vehicle-mounted subsystem by providing the carriage wireless communication networking scheme and providing the backup networking, effectively reduces the number of vehicle-mounted cables by applying the wireless communication while ensuring the safe operation of the train, reduces the equipment cost and the maintenance difficulty, and improves the flexibility of upgrading the system function.
Fig. 6 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 6: a processor (processor)610, a communication interface (communication interface)620, a memory (memory)630 and a communication bus (bus)640, wherein the processor 610, the communication interface 620 and the memory 630 are communicated with each other via the communication bus 640. The processor 610 may invoke logic instructions in the memory 630 to perform a method for wireless communication within a train car, the method comprising: wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems; connecting a first subsystem set in the plurality of wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and connecting the remaining second subsystem sets with a second wireless networking mode in a star networking mode; and the first wireless assembly network and the second wireless assembly network are respectively accessed to the ETB network to complete the communication among the subsystems.
In addition, the logic instructions in the memory 630 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
In another aspect, an embodiment of the present invention further provides a computer program product, where the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the wireless communication method for train cars provided by the above-mentioned method embodiments, and the method includes: wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems; connecting a first subsystem set in the plurality of wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and connecting the remaining second subsystem sets with a second wireless networking mode in a star networking mode; and the first wireless assembly network and the second wireless assembly network are respectively accessed to the ETB network to complete the communication among the subsystems.
In yet another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to perform the wireless communication method for train cars provided in the above embodiments, the method including: wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems; connecting a first subsystem set in the plurality of wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and connecting the remaining second subsystem sets with a second wireless networking mode in a star networking mode; and the first wireless assembly network and the second wireless assembly network are respectively accessed to the ETB network to complete the communication among the subsystems.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of wireless communication within a train car, comprising:
wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems;
connecting a first subsystem set in the plurality of wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and connecting the remaining second subsystem sets with a second wireless networking mode in a star networking mode;
and the first wireless assembly network and the second wireless assembly network are respectively accessed to the ETB network to complete the communication among the subsystems.
2. The method according to claim 1, wherein the wirelessly transforming a plurality of subsystems in the train car to obtain a plurality of wireless subsystems comprises:
replacing a vehicle-mounted network cable connected with the first subsystem set in the train carriage with a wireless connection, and acquiring and testing wireless performance indexes of the first subsystem set;
and after the wireless performance indexes meet preset performance indexes, replacing the vehicle-mounted network cables connected with the second subsystem set with wireless connection until wireless transformation of all the subsystems is completed to obtain the plurality of wireless subsystems.
3. The method according to claim 1, wherein the connecting a first subsystem set of the plurality of wireless subsystems to a first wireless component network in a dual-homing backup networking manner, and the connecting the remaining second subsystem set to a second wireless component network in a star networking manner, specifically comprises:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers the data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a 5G V2X module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the two parallel redundant backup ETB nodes by adopting the preset connection mode and through the 5G V2X module.
4. The method according to claim 1, wherein the first subsystem set of the wireless subsystems is connected to the first wireless networking in a dual-homing backup networking manner, and the remaining second subsystem set is connected to the second wireless networking in a star networking manner, and further comprising:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a WiFi6 module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the ETB nodes of the two parallel redundant backups in the preset connection mode through the WiFi6 module.
5. The method according to claim 1, wherein the first subsystem set of the wireless subsystems is connected to the first wireless networking in a dual-homing backup networking manner, and the remaining second subsystem set is connected to the second wireless networking in a star networking manner, and further comprising:
two ETB nodes with parallel redundant backup are deployed in each carriage;
the first wireless mesh network gathers the data of the first subsystem set, and is respectively connected with the ETB nodes of the two parallel redundant backups through a 5G V2X module by adopting a preset connection mode;
and the second wireless component network converges the data of the second subsystem set, and is connected with any one node of the two parallel redundant backup ETB nodes by adopting the preset connection mode and a WiFi6 module.
6. The method of wireless communication for use within a train car of any one of claims 1 to 5, wherein the first set of subsystems comprises a time sensitive subsystem and the second set of subsystems comprises a time insensitive subsystem;
the first wireless component network comprises a secure wireless component network, and the second wireless component network comprises a common wireless component network.
7. The method for wireless communication inside a train car according to any one of claims 3 to 5, wherein the preset connection means includes a direct connection and a connection converged through a router.
8. A wireless communication system for use in a train car, comprising:
the transformation module is used for wirelessly transforming a plurality of subsystems in a train carriage to obtain a plurality of wireless subsystems;
the first networking module is used for connecting a first subsystem set in the wireless subsystems with a first wireless networking mode in a dual-homing backup networking mode, and the rest second subsystem sets are connected with a second wireless networking mode in a star networking mode;
and the second networking module is used for accessing the first wireless networking module and the second wireless networking module into the ETB network respectively to complete the communication among the subsystems.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor when executing the program implements the steps of the method for wireless communication in a train car according to any one of claims 1 to 7.
10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the steps of the method for wireless communication in a train car according to any one of claims 1 to 7.
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