Inter-train direct communication device and train

Abstract

The utility model relates to an inter-train direct communication device and a train, and belongs to the technical field of rail train communication. The inter-train direct communication device comprises a data acquisition module, a Beidou transceiver module, a CPU module and a communication module. The data acquisition module is used for acquiring train operation information and the ID of the current train from a vehicle-mounted judicial recorder and receiving the train ID of the terminal; the Beidou transceiver module is connected with the Beidou satellite navigation system so as to send the position information of the current train to the receiving terminal and receive the position information sent by other trains to the current train; the CPU module is connected with the Beidou transceiver module and is used for judging the communication train and the ID of the communication train according to the current train position and the positions of other running trains; the communication module is connected with the CPU module and used for sending information to the communication train and receiving information sent by the communication train to the current train. The inter-train direct communication device provided by the utility model not only can shorten communication time delay and reduce Doppler frequency shift, but also can reduce trackside equipment and communication nodes.

Description

Technical Field

[0001] This utility model belongs to the field of rail train communication technology, and in particular relates to a direct communication device between trains and a train. Background Technology

[0002] In the field of modern rail transit, communication between trains plays a vital role in ensuring train safety, improving transportation efficiency, and optimizing train operation management.

[0003] During train operation, multiple trains typically run simultaneously in the vicinity. These running trains, the tracks they occupy, and all related elements are collectively referred to as the "operating network." Trains situated within this network are susceptible to collisions or track blockages if communication between them is lacking, thus impacting train operation.

[0004] Currently, trains primarily rely on indirect communication between trains and the ground to achieve information exchange. This traditional indirect communication mode requires a large number of trackside devices to relay communication signals between trains. This not only increases the system's construction cost but also makes the entire communication network architecture complex and cumbersome, consequently increasing the difficulty of subsequent maintenance and management. Moreover, delays are inevitable during the multiple relays between trains and the ground. In high-speed train operation scenarios, these delays may lead to delayed responses to emergencies, affecting operational safety and efficiency. Furthermore, because the indirect communication path is circuitous and susceptible to interference from various factors, the end-to-end speed difference in train communication is difficult to control effectively, resulting in significant Doppler shift.

[0005] Therefore, designing a device that enables direct communication between trains is of great significance for the efficient and safe operation of rail transit. Utility Model Content

[0006] In view of the shortcomings of related technologies, this utility model provides a direct communication device between trains and a train. Trains can communicate directly through the direct communication device between trains, which can not only shorten communication delay and reduce Doppler shift, but also reduce trackside equipment and communication nodes.

[0007] This utility model provides a direct communication device between trains, comprising:

[0008] The data acquisition module is used to obtain train operation information, the current train ID, and the train ID of the receiving terminal from the on-board judicial recorder.

[0009] The BeiDou transceiver module connects to the BeiDou satellite navigation system to send the current train's location information to the receiving terminal and to receive location information sent to the current train by other trains.

[0010] The CPU module is connected to the Beidou transceiver module. The CPU module is used to determine the communication train and its ID based on the current train position and the positions of other running trains.

[0011] The communication module is connected to the CPU module and is used to send information to the communication train and receive information sent by the communication train to the current train.

[0012] This technical solution enables the BeiDou transceiver module to exchange information with the BeiDou satellite navigation system, allowing the BeiDou transceiver module to send the current train's location information to other trains via the BeiDou satellite navigation system. Furthermore, the BeiDou transceiver module can receive location information sent to the current train by other trains via the BeiDou satellite navigation system, thus achieving location information sharing between trains. A CPU module is also included, which determines the current train's communication train and its ID based on the current train's location and the locations of other trains. Finally, a communication module is provided, enabling direct communication between trains to send and receive information from the communication train.

[0013] In some embodiments, the communication module uses the 5G-R band to send and receive messages.

[0014] This technical solution enables direct communication between trains by using the 5G-R frequency band for the communication module, thereby giving the communication module ultra-high bandwidth, ultra-low latency, and massive connectivity, while also making the communication module small in size and easy to deploy.

[0015] In some embodiments, the CPU module is also used to send instructions to the BeiDou transceiver module and the communication module; the BeiDou transceiver module and the communication module are used to execute the instructions sent by the CPU module.

[0016] In some embodiments, a storage module is also included, which is connected to the BeiDou transceiver module, the communication module, and the data acquisition module, respectively, and is used to receive and store information sent to the storage module by the BeiDou transceiver module, the communication module, the CPU module, and the data acquisition module.

[0017] In some embodiments, the data acquisition module transmits the acquired train information to the storage module, and the storage module then transmits the train operation information to the Beidou transceiver module.

[0018] In some embodiments, a PWR module is also included, which is connected to a power supply and is used to supply power to the BeiDou transceiver module, communication module, CPU module, and data acquisition module.

[0019] In some embodiments, the PWR module is equipped with a backup power supply, which can temporarily power the BeiDou transceiver module, communication module, CPU module, and data acquisition module.

[0020] In some embodiments, a housing is also included, in which the BeiDou transceiver module, communication module, CPU module, data acquisition module, and PWR module are respectively installed in a pluggable manner.

[0021] In addition, this utility model also provides a train equipped with the aforementioned direct inter-train communication device; the train can directly communicate with other trains equipped with the aforementioned direct inter-train communication device.

[0022] In some embodiments, the train includes an onboard ATP device connected to a storage module. The storage module is used to send the received communication train information to the onboard ATP device, and the onboard ATP device is used to receive the information sent by the storage module.

[0023] Based on the above technical solution, the direct communication device between trains in this embodiment can realize direct communication between trains. Compared with the current indirect communication method between trains and the ground, it has the advantages of significantly reducing the end-to-end speed difference of communication equipment, reducing Doppler frequency shift, minimizing trackside equipment and communication nodes, and shortening communication latency. By using the Beidou satellite navigation system, it can share its own position with other trains and receive the position information of other trains through the Beidou satellite navigation system, thereby determining the position and ID of the communicating train, clarifying the communication target of the current train, and realizing communication between the current train and the communicating train. It can make full use of the short message sending and receiving function of the Beidou system, and reduce trackside equipment, gradually transforming the train control system from a ground-centric to a train-centric system. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0025] Figure 1 This is a schematic diagram illustrating the working principle of one embodiment of the direct communication device between trains according to this utility model.

[0026] Figure 2This is a schematic diagram illustrating the working principle of the PWR module supplying power to other modules in one embodiment of the utility model's inter-train direct communication device.

[0027] Figure 3 This is a structural schematic diagram of one embodiment of the train in this utility model. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] As attached Figure 1 As shown in the schematic embodiment of the direct communication device between trains of this utility model, the direct communication device between trains can realize direct communication between trains; the direct communication device between trains includes a data acquisition module, a Beidou transceiver module, a CPU module and a communication module.

[0033] In the aforementioned direct communication device between trains, the data acquisition module is used to obtain train operation information, the current train ID, and the train ID of the receiving terminal from the onboard judicial recorder. The receiving terminal is the train whose current location information is to be shared; the receiving terminal may be one train or multiple trains.

[0034] It should be noted that a vehicle-mounted judicial recorder is a device specifically designed for rail trains. Its main function is to record critical data during train operation, providing reliable data support for judicial matters such as accident investigations, safety assessments, and liability determinations. Vehicle-mounted judicial recorders are existing technology in this field and will not be elaborated upon further.

[0035] It should also be noted that in practical applications, each train has its own ID, and the corresponding train information can be found through the train ID. This is common knowledge in this field and will not be elaborated further.

[0036] In addition, it should be noted that the current train may communicate with multiple trains, and among these multiple trains, the current train will eventually communicate with the train that may affect the operation of the current train in order to ensure the safety of the current train operation.

[0037] In the aforementioned direct communication device between trains, the BeiDou transceiver module is connected to the BeiDou satellite navigation system, and the BeiDou transceiver module and the BeiDou satellite navigation system exchange messages. The BeiDou transceiver module can send the current train's location information to other trains through the BeiDou satellite navigation system, and can also receive the location information sent to the current train by other trains through the BeiDou satellite navigation system.

[0038] Knowing the train ID of the receiving terminal, the Beidou transceiver module sends the current train's location information to the receiving terminal through the Beidou satellite navigation system based on the train ID, so as to realize the sharing of the current train's location information between the current train and the receiving terminal, so that the receiving terminal can know the current train's location information.

[0039] Similarly, when the current train acts as a receiving terminal for other trains, the BeiDou transceiver modules of other trains will also send their location information to the current train through the BeiDou satellite navigation system based on the current train's ID, so that the current train can know the location information of other trains.

[0040] This can be understood as follows: the sharing of the current train's location information is proactive, meaning the current train needs to actively send its own location; the current train's reception of other trains' location information is passive, meaning other trains actively send their location information to the current train.

[0041] It should be noted that the BeiDou Navigation Satellite System can be considered an intermediary medium for information transmission between BeiDou transceiver modules. The current train is the sender, and its location information is the message to be transmitted. Therefore, the information sent from the BeiDou transceiver module to the BeiDou Navigation Satellite System includes not only the current train's location information and ID, but also the train ID of the receiving terminal. This allows the BeiDou Navigation Satellite System to send messages to the BeiDou transceiver module of the receiving train based on the train ID.

[0042] It should also be noted that in practical applications, the BeiDou satellites send electromagnetic signals (navigation messages) to the BeiDou transceiver module. The train's BeiDou transceiver module then calculates the train's position based on the signals it receives from multiple satellites. This is common knowledge in the field and will not be elaborated further.

[0043] In the aforementioned direct communication device between trains, the CPU module is connected to the Beidou transceiver module. The CPU module is used to determine the communication train and its ID based on the current train position and the positions of other running trains.

[0044] In the aforementioned direct communication device between trains, the communication module is used to send information to the communication train and receive information sent by the communication train to the current train, so as to realize direct communication between the current train and the communication train.

[0045] The communication module uses the 5G-R frequency band to send and receive messages, enabling it to have ultra-high bandwidth, ultra-low latency, and massive connectivity, while also being small in size and easy to deploy.

[0046] It should be noted that the 5G-R band has the characteristics of ultra-large bandwidth, ultra-low latency, and massive connectivity compared to the currently used GSM-R band. At the same time, 5G communication equipment is smaller in size and more suitable for deployment in the limited space of vehicles.

[0047] It should be noted that the information sent by the communication module includes at least the ID of the receiving object, so that the current train and / or the communicating train can compare the train IDs after receiving the information, thus ensuring the accuracy of the communication object.

[0048] That is, the information sent by the current train to the communication train includes the ID of the communication train, so that after receiving the information, the communication train can compare its own ID with the ID in the information sent by the current train.

[0049] Similarly, the reply from the communication train to the current train should at least include the ID of the current train, so that after receiving the reply, the current train can compare its own ID with the ID in the reply from the communication train.

[0050] It should also be noted that since the information sent by the current train includes the ID of the current train, the information exchanged between the current train and the communicating train does not need to repeatedly indicate the ID of the sending train.

[0051] The aforementioned direct communication device between trains uses a BeiDou transceiver module to exchange information with the BeiDou Navigation Satellite System, enabling it to share its own location with other trains and receive the locations of other operating trains. A CPU module is also included to determine the current train's communication train and its ID based on its current location. Furthermore, a communication module is set up to send information to and receive information from the communication train sent to the current train, thus achieving direct communication between trains.

[0052] In the aforementioned direct communication device between trains, the CPU module is also used to send instructions to the BeiDou transceiver module and the communication module; the BeiDou transceiver module and the communication module are used to execute the instructions sent by the CPU module.

[0053] The aforementioned direct communication device between trains also includes a storage module, which is connected to the CPU module. The storage module is used to execute instructions issued by the CPU module and / or receive and store information sent by the CPU module.

[0054] The CPU module sends the information received by the CPU module to the storage module, and the storage module stores the information received by the CPU module.

[0055] The storage module is also connected to the BeiDou transceiver module, the communication module, and the data acquisition module, respectively, to receive and store information sent to the storage module by the BeiDou transceiver module, the communication module, and the data acquisition module.

[0056] In some embodiments, the data acquisition module transmits the acquired train operation information to the storage module, and the storage module then transmits the train operation information to the Beidou transceiver module.

[0057] In some embodiments, the storage module provides the information received by the storage module to the onboard ATP device, and the onboard ATP device adjusts the train operation parameters according to the communication content to ensure the safety of train operation.

[0058] The aforementioned direct communication device between trains also includes a PWR module, which is connected to a power supply and is used to power the Beidou transceiver module, communication module, CPU module, and data acquisition module.

[0059] In some embodiments, the PWR module is equipped with a backup power supply, which can temporarily power the Beidou transceiver module, communication module, CPU module, and data acquisition module.

[0060] In other embodiments, after a power outage, the PWR module can also provide uninterrupted power to the Beidou transceiver module, communication module, CPU module, and data acquisition module for 30 minutes to ensure the reliability of the direct communication device between trains.

[0061] The aforementioned direct communication device between trains also includes a housing, in which the Beidou transceiver module, communication module, CPU module, data acquisition module, and PWR module are installed in a pluggable manner.

[0062] By designing the direct communication device between trains as a modular system, with each module installed in the housing in a plug-in manner, when one module fails, a normal module can be directly used to replace the faulty module, making operation convenient and reducing maintenance difficulty and fault repair time.

[0063] like Figure 2 As shown, based on the above-mentioned direct inter-train communication device, this utility model also provides a train equipped with the above-mentioned direct inter-train communication device; the train can directly communicate with other trains equipped with the above-mentioned direct inter-train communication device.

[0064] It should be noted that trains equipped with direct train communication devices use the BeiDou transceiver module to send their own ID and location to other trains via the BeiDou satellite navigation system, and to receive location information from other trains. This enables the sharing of location information between trains, allowing the current train to determine which train it needs to communicate with based on its own location and the locations of other trains.

[0065] The train includes an onboard ATP (Automatic Train Protection) system, which is connected to a storage module. The storage module transmits received train communication information to the onboard ATP system, which in turn receives the information transmitted by the storage module. Based on the train communication information, the onboard ATP system calculates and adjusts the train's speed and other parameters to ensure safe operation.

[0066] In the aforementioned direct communication device between trains, when the current train sends information to surrounding trains, the current train's data acquisition module collects train operation data and receiving terminal ID from the current train's onboard judicial recorder. The current train's Beidou transceiver module sends the current train's location information to the receiving terminal's Beidou transceiver module via the Beidou satellite navigation system. The current train's Beidou transceiver module also receives location information sent to the current train by other trains via the Beidou satellite navigation system. The current train provides its own location information and the received location information of other trains to the current train's CPU module for processing. The CPU module ultimately analyzes the location of the train that the current train needs to communicate with, the ID of the train that needs to communicate with, and the content that needs to be communicated, and generates a sending command, causing the communication module to send the communication content to the communicating train.

[0067] When the current train receives information from surrounding trains—that is, when the current train's communication module receives information sent by surrounding trains through their communication modules—the current train's communication module transmits the received information to the current train's CPU module. The current train's CPU module compares the ID information, determines that the information receiving terminal ID matches its own ID, and then sends the received information to the current train's storage module. Finally, the current train's storage module transmits the received information to the current train's ATP (Automatic Train Protection) equipment for the current train's protection calculations and safe operation.

[0068] The following describes the workflow of the direct communication device between trains using five trains as an example. The IDs of the five trains are A, B, C, D, and E. Among them, B, C, D, and E are the receiving terminals of train A. Train A sends its location to trains B, C, D, and E through the BeiDou satellite navigation system. At the same time, train A is also the receiving terminal of trains B, C, D, and E. Trains B, C, D, and E send their respective locations to train A through the BeiDou satellite navigation system.

[0069] Train A's data acquisition module obtains train operation information from the train's onboard judicial recorder, thereby acquiring the IDs of trains B, C, D, and E. Train A's data acquisition module then transmits these five train IDs to its storage module, which stores them. Finally, Train A's storage module transmits these five train IDs to Train A's BeiDou transceiver module.

[0070] Train A's BeiDou transceiver module will send information including Train A's ID, Train A's location information, and the receiving terminal trains' IDs (B, C, D, and E) to the BeiDou Navigation Satellite System. The BeiDou Navigation Satellite System will then send Train A's ID and location information to the BeiDou transceiver modules of Trains B, C, D, and E respectively. The BeiDou transceiver modules of Trains B, C, D, and E will then receive Train A's ID and location information respectively.

[0071] The BeiDou transceiver modules of trains B, C, D, and E respectively send their respective train IDs and location information to the BeiDou transceiver module of train A via the BeiDou satellite navigation system. The BeiDou transceiver module of train A receives the IDs and location information of trains B, C, D, and E respectively.

[0072] After receiving the location information of trains B, C, D, and E, the Beidou transceiver module of train A transmits the received information to the CPU module of train A. The CPU module of train A analyzes the location of trains B, C, D, and E based on the location of train A and determines that train A needs to communicate with train B to prevent train B from affecting the normal operation of train A.

[0073] Train A's CPU module transmits information including communication content and Train B's ID to Train A's communication module, and Train A's communication module uses the 5G-R band to send the information to Train B's communication module.

[0074] Train B's communication module transmits the received information from Train A to Train B's CPU module. Train B's CPU module compares the train ID in the received information from Train A with Train B's ID. If they match, Train B's CPU module stores the received information from Train A in Train B's storage module. Train B's CPU module then sends a reply, including Train A's ID, to Train B's communication module. Train B's communication module then uses the 5G-R frequency band to send the information to Train A's communication module.

[0075] Train A's communication module transmits the received information from Train B to Train A's CPU module. Train A's CPU module compares the train ID in the received information from Train B with Train A's ID. If they match, Train A's CPU module stores the received information from Train B in Train A's storage module. Train A's CPU module then sends a reply, including Train B's ID, to Train A's communication module. Train A's communication module then uses the 5G-R frequency band to send the information to Train B's communication module.

[0076] During or after communication between train A and train B, the operating parameters of train A and / or train B need to be adjusted to ensure the normal operation of train A and train B.

[0077] In some embodiments, during or after communication between train A and train B, the storage module of train A transmits the information from the communication process to the onboard ATP device of train A, and the onboard ATP device of train A adjusts the operating parameters of train A.

[0078] In other embodiments, the storage module of train B transmits information during the communication process to the onboard BTP device of train B, and the onboard BTP device of train B adjusts the operating parameters of train B.

[0079] In some other embodiments, during or after communication between train A and train B, the storage module of train A transmits the information during the communication process to the onboard ATP device of train A, and the onboard ATP device of train A adjusts the operating parameters of train A; and the storage module of train B transmits the information during the communication process to the onboard ATP device of train B, and the onboard ATP device of train B adjusts the operating parameters of train B.

[0080] The aforementioned direct communication device between trains enables direct communication between trains. Compared with the current indirect communication method between trains, it has the advantages of significantly reducing the end-to-end speed difference of communication equipment, reducing Doppler frequency shift, minimizing trackside equipment and communication nodes, and shortening communication latency. By using the BeiDou satellite navigation system to obtain the current position of the train and the position of the communicating train, it can make full use of the BeiDou system's short message sending and receiving function, reduce trackside equipment, and gradually transform the train control system from a ground-centric to a train-centric system.

[0081] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0082] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A direct communication device between trains, characterized in that, include: The data acquisition module is used to obtain train operation information, the current train ID, and the train ID of the receiving terminal from the on-board judicial recorder. The Beidou transceiver module is connected to the Beidou satellite navigation system to send the current train's location information to the receiving terminal and to receive location information sent to the current train by other trains. The CPU module is connected to the Beidou transceiver module. The CPU module is used to determine the communication train and its ID based on the current train position and the positions of other running trains. A communication module is connected to the CPU module. The communication module is used to send information to the communication train and receive information sent by the communication train to the current train.

2. The direct communication device between trains according to claim 1, characterized in that, The communication module uses the 5G-R frequency band to send and receive messages.

3. The direct communication device between trains according to claim 1, characterized in that, The CPU module is also used to send instructions to the BeiDou transceiver module and the communication module; the BeiDou transceiver module and the communication module are used to execute the instructions sent by the CPU module.

4. The direct communication device between trains according to claim 3, characterized in that, It also includes a storage module, which is connected to the BeiDou transceiver module, the communication module, and the data acquisition module, respectively, and is used to receive and store information sent to the storage module by the BeiDou transceiver module, the communication module, the CPU module, and the data acquisition module.

5. The direct communication device between trains according to claim 4, characterized in that, The data acquisition module transmits the acquired train information to the storage module, and the storage module then transmits the train operation information to the Beidou transceiver module.

6. The direct communication device between trains according to claim 4, characterized in that, It also includes a PWR module, which is connected to a power supply and is used to supply power to the BeiDou transceiver module, the communication module, the CPU module, and the data acquisition module.

7. The direct communication device between trains according to claim 6, characterized in that, The PWR module is equipped with a backup power supply, which can temporarily power the Beidou transceiver module, the communication module, the CPU module, and the data acquisition module.

8. The direct communication device between trains according to claim 6, characterized in that, It also includes a housing, and the Beidou transceiver module, the communication module, the CPU module, the data acquisition module and the PWR module are respectively installed in the housing in a pluggable manner.

9. A train, characterized in that, The train is equipped with a direct inter-train communication device as described in any one of claims 4-8; the train can communicate directly with other trains equipped with the direct inter-train communication device as described in any one of claims 4-8.

10. The train according to claim 9, characterized in that, The train includes an onboard ATP device, which is connected to the storage module. The storage module is used to send the received communication train information to the onboard ATP device, and the onboard ATP device is used to receive the information sent by the storage module.

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