Vehicle-ground redundant communication connection method and device, product, equipment and medium

Abstract

The invention discloses a train-ground redundant communication connection method and device, a product, equipment and a medium, and relates to the technical field of rail transit, and the method comprises the steps: obtaining an IP address IPB1 of a first wireless mobile terminal, an IP address IPB2 of a second wireless mobile terminal, an IP address IPA1 of a radio block center interface unit I system, and an IP address IPA2 of a radio block center interface unit II system; establishing a first train-ground communication connection and a second train-ground communication connection between the IPB1 and the IPA1 and between the IPB1 and the IPA2; third train-ground communication connection and fourth train-ground communication connection between the IPB2 and the IPA1 and between the IPB2 and the IPA2 are established; wherein the four vehicle-ground communication connections are backup for each other. According to the invention, the technical problems of train-ground communication wireless timeout, train speed reduction operation and even degraded operation caused by low reliability of train-ground communication in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and in particular, to a method, device, product, equipment and medium for redundant vehicle-ground communication connection. Background Art

[0002] At present, the CTCS-3 level train control system transmits vehicle-ground safety control information based on GSM-R circuit switching technology. In the circuit switching mode, each radio can only establish one vehicle-ground communication connection, without redundant channels / connections. When any device passed by in the vehicle-ground communication channel / connection fails, vehicle-ground communication wireless timeout will occur, resulting in the train running at a reduced speed or even in a degraded operation mode.

[0003] In order to improve the reliability of vehicle-ground communication, in the related art, 5G-R network is used to transmit vehicle-ground safety control information, and the vehicle-ground communication adopts the packet switching mode. Therefore, it is proposed that ATP respectively establishes one vehicle-ground communication connection with two interface units (interface unit I system and interface unit II system) of RBC through two wireless mobile terminals MT1 and MT2.

[0004] In this solution, although the communication problems caused by single-point device failures on the vehicle-ground communication link can be avoided, when both MT1 and the interface unit II system fail, the vehicle-ground communication connection established between ATP and RBC will be disconnected, and a new vehicle-ground communication connection cannot be established either, still resulting in vehicle-ground communication wireless timeout, leading to the train running at a reduced speed or even in a degraded operation mode. Summary of the Invention

[0005] The present invention provides a method, device, product, equipment and medium for redundant vehicle-ground communication connection, which can solve the technical problems in the prior art that the reliability of vehicle-ground communication is low, resulting in vehicle-ground communication wireless timeout, the train running at a reduced speed or even in a degraded operation mode.

[0006] To achieve the above object, the present invention provides the following technical solutions: In a first aspect, an embodiment of the present invention provides a method for redundant vehicle-ground communication connection, the method comprising: Obtaining the IP address IP_B1 of the first wireless mobile terminal in the on-vehicle automatic protection equipment, the IP address IP_B2 of the second wireless mobile terminal in the on-vehicle automatic protection equipment, the IP address IP_A1 of the interface unit I system of the radio block center, and the IP address IP_A2 of the interface unit II system of the radio block center; Establishing a first vehicle-ground communication connection between the IP_B1 and the IP_A1, and a second vehicle-ground communication connection between the IP_B1 and the IP_A2; Establish a third vehicle - ground communication connection between the IP_B2 and the IP_A1, and a fourth vehicle - ground communication connection between the IP_B2 and the IP_A2; Among them, the first vehicle - ground communication connection, the second vehicle - ground communication connection, the third vehicle - ground communication connection, and the fourth vehicle - ground communication connection are backup vehicle - ground communication connections to each other.

[0007] Optionally, the IP_B1 and the IP_B2 are dynamically re - allocated through network processing after the on - vehicle automatic protection equipment is powered on or disconnected.

[0008] Optionally, the first vehicle - ground communication connection, the second vehicle - ground communication connection, the third vehicle - ground communication connection, and the fourth vehicle - ground communication connection share a communication network.

[0009] Optionally, among the first vehicle - ground communication connection, the second vehicle - ground communication connection, the third vehicle - ground communication connection, and the fourth vehicle - ground communication connection, any two vehicle - ground communication connections share a communication network, and the remaining two vehicle - ground communication connections share another communication network.

[0010] In a second aspect, an embodiment of the present invention provides a vehicle - ground redundant communication connection device, and the device includes: An information acquisition module, configured to acquire the IP address IP_B1 of the first wireless mobile terminal in the on - vehicle automatic protection equipment, the IP address IP_B2 of the second wireless mobile terminal in the on - vehicle automatic protection equipment, the IP address IP_A1 of the wireless block center interface unit I system, and the IP address IP_A2 of the wireless block center interface unit II system; A communication connection establishment module, configured to establish a first vehicle - ground communication connection between the IP_B1 and the IP_A1, and a second vehicle - ground communication connection between the IP_B1 and the IP_A2; establish a third vehicle - ground communication connection between the IP_B2 and the IP_A1, and a fourth vehicle - ground communication connection between the IP_B2 and the IP_A2; Among them, the first vehicle - ground communication connection, the second vehicle - ground communication connection, the third vehicle - ground communication connection, and the fourth vehicle - ground communication connection are backup vehicle - ground communication connections to each other.

[0011] In a third aspect, an embodiment of the present invention further provides an electronic device, including: a memory, a processor; the processor is used to read and execute the computer program stored in the memory to implement the steps of the foregoing vehicle - ground redundant communication connection method.

[0012] Fourthly, an embodiment of the present invention further provides a computer storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed, the steps of the foregoing method for redundant vehicle-ground communication connection are implemented.

[0013] Fifthly, an embodiment of the present invention further provides a computer program product, including a computer program / instructions, and when the computer program / instructions are executed by a processor, the steps of the foregoing method for redundant vehicle-ground communication connection are implemented.

[0014] The beneficial effects brought by the technical solutions provided by the embodiments of the present invention include: Obtain the IP address IP_B1 of the first wireless mobile terminal in the on-vehicle automatic protection equipment, the IP address IP_B2 of the second wireless mobile terminal in the on-vehicle automatic protection equipment, the IP address IP_A1 of the I-system of the radio block center interface unit, and the IP address IP_A2 of the II-system of the radio block center interface unit; establish a first vehicle-ground communication connection between the IP_B1 and the IP_A1, and a second vehicle-ground communication connection between the IP_B1 and the IP_A2; establish a third vehicle-ground communication connection between the IP_B2 and the IP_A1, and a fourth vehicle-ground communication connection between the IP_B2 and the IP_A2; wherein, the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection are backup vehicle-ground communication connections to each other. Through the present invention, the four vehicle-ground communication connections are backup to each other. If a cross fault occurs, the communication between the ATP and the RBC will not be disconnected, and the reliability is better, solving the problem in the related art that the reliability of vehicle-ground communication is relatively low, and single-point faults or cross faults (special double-point faults) will cause wireless timeout of vehicle-ground communication, the train to decelerate, or even degrade. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic flowchart of an embodiment of the method for redundant vehicle-ground communication connection of the present invention; Figure 2 It is a schematic diagram of the vehicle-ground communication architecture of the CTCS-3 level train control system; Figure 3 It is a schematic diagram of the structure of the dual-channel redundant system under the 5G-R network; Figure 4 It is a schematic diagram of the first embodiment of vehicle-ground dual-connection communication under the 5G-R network; Figure 5 Schematic diagram of the second embodiment of the vehicle-ground dual-connection communication in the 5G-R network; Figure 6 Schematic diagram of the third embodiment of the vehicle-ground dual-connection communication in the 5G-R network; Figure 7 Schematic diagram of the first embodiment of the vehicle-ground redundant communication connection method of the present invention; Figure 8 Schematic diagram of the second embodiment of the vehicle-ground redundant communication connection method of the present invention; Figure 9 Schematic diagram of the functional modules of an embodiment of the vehicle-ground redundant communication connection device of the present invention; Figure 10 Schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] In a first aspect, an embodiment of the present invention provides a vehicle-ground redundant communication connection method.

[0020] In one embodiment, referring to Figure 1 , Figure 1 is a schematic flow chart of an embodiment of the vehicle-ground redundant communication connection method of the present invention. As Figure 1 shown, the vehicle-ground redundant communication connection method includes: Step S10, obtaining the IP address IP_B1 of the first wireless mobile terminal in the on-vehicle automatic protection equipment, the IP address IP_B2 of the second wireless mobile terminal in the on-vehicle automatic protection equipment, the IP address IP_A1 of the wireless block center interface unit I system, and the IP address IP_A2 of the wireless block center interface unit II system; In this embodiment, Figure 2 is a schematic diagram of the vehicle-ground communication architecture of the CTCS-3 level train control system. As Figure 2As shown in the figure, ATP (Automatic Train Protection) includes an ATP host, an on-vehicle wireless transmission unit, MT1, and MT2. RBC (Radio Block Center) includes a circuit domain interface unit and an RBC host. BTS is the Base Transceiver Station, BSC is the Base Station Control, and MSC is the Mobile Switching Center.

[0021] The CTCS-3 level (abbreviated as C3) train control system realizes two-way transmission of vehicle-ground information based on wireless communication. The RBC (Radio Block Center) generates a "movement authority" and sends it to the ATP (Automatic Train Protection). The ATP realizes train positioning through balises, sends the positioning information to the RBC, and adopts a continuous speed control mode with target distance to monitor the safe operation of the train. The CTCS-3 level train control system carries vehicle-ground safety control information based on the GSM-R circuit switching technology. In the circuit switching mode, each radio can only establish one vehicle-ground communication connection. Therefore, a single-channel connection method in the circuit domain is adopted between the ATP and the RBC, that is, only one vehicle-ground communication channel / connection is established between the ATP and each RBC (the idle radio is used for the RBC handover scenario), without redundant channels / connections. Therefore, when any device passed by in the vehicle-ground communication channel / connection fails, the vehicle-ground communication has a wireless timeout, and the train runs at a reduced speed, and in severe cases, it operates in a degraded mode.

[0022] When using the 5G-R network to transmit vehicle-ground safety control information, the vehicle-ground communication adopts the packet switching mode. Therefore, it is proposed that the ATP can use two radios to establish two redundant vehicle-ground communication connections with the RBC respectively. Through the redundant backup method, the C3 wireless timeout caused by a single-point device failure on the vehicle-ground communication link is avoided, and the reliability of the vehicle-ground wireless communication is greatly improved. The structure of the dual-channel redundant system under the 5G-R network is as Figure 3 shown. Figure 3 In the figure, ATP (Automatic Train Protection) includes an ATP host, a dual-mode on-vehicle wireless transmission unit, MT1, and MT2. RBC (Radio Block Center) includes a packet domain interface unit and an RBC host. A dual-channel connection method in the packet domain is adopted between the ATP and the RBC, that is, two vehicle-ground communication channels / connections are established between the ATP and each RBC, with redundant channels / connections.

[0023] Among them, the network elements of the 5G core network include: 1. AMF (Access and Mobility Management Function): Responsible for user access and mobility management; 2. SMF (Session Management Function): Responsible for user session management; 3. UPF (User Plane Function): Responsible for user plane processing; 4. gNB (Radio Resource Management Function), including radio bearer control, link mobility control, and UE uplink and downlink dynamic resource allocation (scheduling).

[0024] When using the 5G-R network to transmit train-ground safety control information, in order to achieve redundant train-ground dual-channel communication, a train-ground dual-connection communication scheme is generally adopted at present. For the specific scheme, refer to Figure 4 , Figure 4 which is a schematic diagram of the first embodiment of train-ground dual-connection communication in the 5G-R network. As Figure 4 shown, the ATP (On-board Automatic Protection Equipment) establishes 1 train-ground communication connection with each of the two interface units of the RBC through two wireless mobile terminals MT1 and MT2 respectively: MT1 establishes a train-ground communication connection with the IP address IP_A1 of Interface Unit I through the IP address IP_B1, and MT2 establishes another train-ground communication connection with the IP address IP_A2 of Interface Unit II through the IP address IP_B2. The two train-ground communication connections transmit the same user data, and the two connections are backup to each other, which can avoid the C3 wireless timeout caused by a single-point device failure on the train-ground communication link. As Figure 5 shown, after MT1 fails, the train-ground communication connection between MT2 and Interface Unit II of the RBC is not affected, but it is powerless against cross failures. As Figure 6 shown, when both MT1 and Interface Unit II fail, the established train-ground communication connection between the ATP and the RBC will be disconnected, and a new train-ground communication connection cannot be established either, still unable to avoid the C3 wireless timeout caused by a single-point device failure on the train-ground communication link.

[0025] To avoid the problems brought by cross failures, as a communication client, after the on-board automatic protection equipment is powered on, the first wireless mobile terminal MT1 and the second wireless mobile terminal MT2 register to the wireless network (5G-R or other wireless networks) and obtain their own IP addresses IP_B1 and IP_B2 from the network respectively. These two IP addresses (IP_B1 and IP_B2) are dynamically allocated by the network and will be re-obtained each time the on-board automatic protection equipment is powered on or disconnected, and the IP address values obtained each time may be different. As a communication server, the Interface Unit I and Interface Unit II of the Radio Block Center (RBC) use fixed IP addresses IP_A1 and IP_A2 to receive the train-ground communication connections from the client.

[0026] The IP addresses used by ATP are dynamically allocated by the network. After MT1 and MT2 are registered to the wireless network, the network will allocate IP addresses from its own IP address pool to MT1 and MT2. The IP addresses are uniformly managed and allocated by the network. Using dynamic IP addresses for ATP has obvious advantages: 1) It can reduce the complexity of IP configuration and management. If fixed IP addresses are used, there are more than 3,000 high-speed trains in the country currently. According to 2 sets of ATP for each train and 2 fixed IP addresses for each set of ATP, more than 6,000 IP addresses are needed. Considering the increase in the number of trains in the future, this is a huge workload for data configuration and IP management; 2) It can efficiently and fully utilize IP addresses. If fixed IP addresses are used, the IP addresses will be continuously occupied by the train whether it is in operation or not. If dynamic IP addresses are used, only the ATP of the operating trains will apply for and obtain IP addresses from the network. Therefore, not many IP addresses will be occupied at the same time, and the IP addresses can be fully utilized.

[0027] Step S20, establish a first vehicle-ground communication connection between the IP_B1 and the IP_A1, and a second vehicle-ground communication connection between the IP_B1 and the IP_A2; Step S30, establish a third vehicle-ground communication connection between the IP_B2 and the IP_A1, and a fourth vehicle-ground communication connection between the IP_B2 and the IP_A2; Among them, the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection are backup vehicle-ground communication connections to each other.

[0028] In this embodiment, as Figure 7 shown, establish a first vehicle-ground communication connection (TCP connection 1) between the first wireless mobile terminal MT1 included in ATP and the interface unit I of the radio block center (RBC), a second vehicle-ground communication connection (TCP connection 2) between the first wireless mobile terminal MT1 and the interface unit II, a third vehicle-ground communication connection (TCP connection 3) between the second wireless mobile terminal MT2 and the interface unit I of the radio block center (RBC), and a fourth vehicle-ground communication connection (TCP connection 4) between the second wireless mobile terminal MT2 and the interface unit II of the radio block center (RBC), and a total of 4 TCP connections are established.

[0029] ATP and RBC send application data through four cross-redundant TCP connections. The four TCP connections are backup to each other and transmit the same application data. As long as one TCP connection is available, the communication between ATP and RBC can proceed normally. Only when all four TCP connections are disconnected will the communication between ATP and RBC be disconnected. At this time, ATP and RBC need to re-establish communication, reducing the probability of all TCP connections being disconnected at once. This not only avoids communication problems caused by single-point device failures on the vehicle-ground communication link but also solves problems brought by cross failures, improving the reliability of vehicle-ground communication.

[0030] Exemplarily, as Figure 8 shown, when both MT1 and interface unit II system fail, there is still one TCP connection between ATP and RBC that will not be disconnected (the vehicle-ground communication connection between MT2 and interface unit I system will not be disconnected). This not only has no impact on the established vehicle-ground communication connection but also allows for the establishment of a new vehicle-ground communication connection, improving the reliability of vehicle-ground communication.

[0031] Furthermore, as Figures 4 to 8 shown in any of the accompanying drawings, inter-system communication can be carried out between interface unit I system and interface unit II system of the radio block center (RBC). Interface unit I system communicates with RBC host I system through the internal Ethernet, and interface unit II system communicates with RBC host II system through the internal Ethernet.

[0032] Optionally, in one embodiment, the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection share a communication network.

[0033] In the application scenario of the present application, the two communication parties (ATP and RBC) generally use a mobile communication network, that is, the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection share a communication network. There is no need to establish two sets of independent communication networks. The redundancy of the network is the responsibility of the communication network operator to improve the adaptability of the solution of the present application.

[0034] Furthermore, in one embodiment, among the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection, any two vehicle-ground communication connections share a communication network, and the remaining two vehicle-ground communication connections share another communication network.

[0035] In this embodiment, the two communication parties (ATP and RBC) can also adapt to the scenario of two sets of independent communication networks, that is, the first vehicle-ground communication connection and the second vehicle-ground communication connection share a communication network, and the third vehicle-ground communication connection and the fourth vehicle-ground communication connection share another communication network; or, the first vehicle-ground communication connection and the third vehicle-ground communication connection share a communication network, and the second vehicle-ground communication connection and the fourth vehicle-ground communication connection share another communication network; or, the first vehicle-ground communication connection and the fourth vehicle-ground communication connection share a communication network, and the second vehicle-ground communication connection and the third vehicle-ground communication connection share another communication network. In this way, if one of the communication networks fails, there is still another communication network for communication, that is, the other two vehicle-ground communication connections will not be disconnected. Even in the case of cross failures, for example, both MT1 and interface unit II have failures, and the communication network shared by the first vehicle-ground communication connection and the second vehicle-ground communication connection also fails, there is still the third vehicle-ground communication connection (TCP connection 3) between the second wireless mobile terminal MT2 and interface unit I of the radio block center (RBC) that will not be disconnected, greatly improving the reliability of vehicle-ground communication and the adaptability of the technical solution of this application.

[0036] In this embodiment, obtain the IP address IP_B1 of the first wireless mobile terminal in the on-vehicle automatic protection equipment, the IP address IP_B2 of the second wireless mobile terminal in the on-vehicle automatic protection equipment, the IP address IP_A1 of interface unit I of the radio block center, and the IP address IP_A2 of interface unit II of the radio block center; establish the first vehicle-ground communication connection between IP_B1 and IP_A1, and the second vehicle-ground communication connection between IP_B1 and IP_A2; establish the third vehicle-ground communication connection between IP_B2 and IP_A1, and the fourth vehicle-ground communication connection between IP_B2 and IP_A2; where the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection are backup vehicle-ground communication connections to each other. Through this embodiment, the four vehicle-ground communication connections are backup to each other. If a cross failure occurs, the communication between ATP and RBC will not be disconnected, and the reliability is better, solving the problem in the related art that the reliability of vehicle-ground communication is relatively low, and single-point failures or cross failures (special double-point failures) will cause wireless timeout of vehicle-ground communication, the train to decelerate, or even degrade.

[0037] In a second aspect, an embodiment of the present invention further provides a vehicle-ground redundant communication connection device.

[0038] In one embodiment, referring to Figure 9 , Figure 9 is a schematic diagram of the functional modules of an embodiment of the vehicle-ground redundant communication connection device of the present invention. As Figure 9 shown, the vehicle-ground redundant communication connection device includes: An information acquisition module 10 is configured to acquire the IP address IP_B1 of the first wireless mobile terminal in the on-vehicle automatic protection device, the IP address IP_B2 of the second wireless mobile terminal in the on-vehicle automatic protection device, the IP address IP_A1 of the wireless block center interface unit series I, and the IP address IP_A2 of the wireless block center interface unit series II; A communication connection establishment module 20 is configured to establish a first vehicle-ground communication connection between the IP_B1 and the IP_A1, and a second vehicle-ground communication connection between the IP_B1 and the IP_A2; establish a third vehicle-ground communication connection between the IP_B2 and the IP_A1, and a fourth vehicle-ground communication connection between the IP_B2 and the IP_A2; Wherein, the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection are backup vehicle-ground communication connections to each other.

[0039] Optionally, in an embodiment, the IP_B1 and the IP_B2 are dynamically re-allocated through a network after the on-vehicle automatic protection device is powered on or disconnected.

[0040] Optionally, in an embodiment, the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection share a communication network.

[0041] Optionally, in an embodiment, among the first vehicle-ground communication connection, the second vehicle-ground communication connection, the third vehicle-ground communication connection, and the fourth vehicle-ground communication connection, any two vehicle-ground communication connections share a communication network, and the remaining two vehicle-ground communication connections share another communication network.

[0042] Wherein, the functions of each module in the above vehicle-ground redundant communication connection device correspond to the steps in the above embodiments of the vehicle-ground redundant communication connection method, and their functions and implementation processes will not be elaborated here one by one.

[0043] In a third aspect, an embodiment of the present invention further provides an electronic device, the structure of which is as Figure 10 shown, including: a memory, a processor, and the processor is used to read and execute the computer program stored in the memory to implement the foregoing vehicle-ground redundant communication connection method.

[0044] In a fourth aspect, an embodiment of the present invention further provides a computer storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed, the foregoing vehicle-ground redundant communication connection method is implemented.

[0045] Fifth aspect, an embodiment of the present invention provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement each process of the above-described embodiment of the vehicle-ground redundant communication connection method, and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0046] Finally, it should be noted that: in some processes described in the embodiments of the present invention, multiple operations or steps appear in a specific order. However, it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present invention or may be executed in parallel. The serial numbers of the operations are only used to distinguish different operations, and the serial numbers themselves do not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0047] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art may still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle-ground redundant communication connection method, characterized in that: The method comprises: Obtaining the IP address IP_B1 of the first wireless mobile terminal in the vehicle-mounted automatic protection device, the IP address IP_B2 of the second wireless mobile terminal in the vehicle-mounted automatic protection device, the IP address IP_A1 of the wireless blocking center interface unit I system, and the IP address IP_A2 of the wireless blocking center interface unit II system; Establishing a first vehicle-to-ground communication connection between the IP_B1 and the IP_A1, and a second vehicle-to-ground communication connection between the IP_B1 and the IP_A2; Establishing a third vehicle-to-ground communication connection between the IP_B2 and the IP_A1, and a fourth vehicle-to-ground communication connection between the IP_B2 and the IP_A2; The first vehicle-to-ground communication connection, the second vehicle-to-ground communication connection, the third vehicle-to-ground communication connection and the fourth vehicle-to-ground communication connection are backup vehicle-to-ground communication connections for each other.

2. The vehicle-to-ground redundant communication connection method according to claim 1, characterized in that: The IP_B1 and the IP_B2 are dynamically reallocated through the network after the vehicle-mounted automatic protection device is powered on or disconnected.

3. The vehicle-to-ground redundant communication connection method according to claim 1, characterized in that: The first vehicle-to-ground communication connection, the second vehicle-to-ground communication connection, the third vehicle-to-ground communication connection, and the fourth vehicle-to-ground communication connection share a communication network.

4. The vehicle-to-ground redundant communication connection method according to claim 1, characterized in that: Among the first vehicle-to-ground communication connection, the second vehicle-to-ground communication connection, the third vehicle-to-ground communication connection and the fourth vehicle-to-ground communication connection, any two vehicle-to-ground communication connections share one communication network, and the remaining two vehicle-to-ground communication connections share another communication network.

5. A vehicle-ground redundant communication connection device, characterized in that: The device comprises: The information acquisition module is configured to acquire the IP address IP_B1 of the first wireless mobile terminal in the vehicle-mounted automatic protection device, the IP address IP_B2 of the second wireless mobile terminal in the vehicle-mounted automatic protection device, the IP address IP_A1 of the wireless blocking center interface unit I system, and the IP address IP_A2 of the wireless blocking center interface unit II system; A communication connection establishing module is configured to establish a first vehicle-to-ground communication connection between the IP_B1 and the IP_A1, and a second vehicle-to-ground communication connection between the IP_B1 and the IP_A2; establish a third vehicle-to-ground communication connection between the IP_B2 and the IP_A1, and a fourth vehicle-to-ground communication connection between the IP_B2 and the IP_A2; The first vehicle-to-ground communication connection, the second vehicle-to-ground communication connection, the third vehicle-to-ground communication connection and the fourth vehicle-to-ground communication connection are backup vehicle-to-ground communication connections for each other.

6. The vehicle-to-ground redundant communication connection device according to claim 5, characterized in that: The IP_B1 and the IP_B2 are dynamically reallocated through the network after the vehicle-mounted automatic protection device is powered on or disconnected.

7. The vehicle-ground redundant communication connection device according to claim 5, characterized in that: The first vehicle-to-ground communication connection, the second vehicle-to-ground communication connection, the third vehicle-to-ground communication connection and the fourth vehicle-to-ground communication connection share a communication network; Among the first vehicle-to-ground communication connection, the second vehicle-to-ground communication connection, the third vehicle-to-ground communication connection and the fourth vehicle-to-ground communication connection, any two vehicle-to-ground communication connections share one communication network, and the remaining two vehicle-to-ground communication connections share another communication network.

8. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instruction is executed by a processor, the steps of the vehicle-to-ground redundant communication connection method as claimed in any one of claims 1 to 4 are implemented.

9. An electronic device, characterized in that: include: Memory and processor; The processor is used to read and execute the computer program stored in the memory to implement the steps of the vehicle-to-ground redundant communication connection method as described in any one of claims 1-4.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed, the steps of the vehicle-to-ground redundant communication connection method as described in any one of claims 1 to 4 are implemented.

Images