Inter-train direct communication method and inter-train direct communication device

Abstract

The invention relates to an inter-train direct communication method and an inter-train direct communication device, and belongs to the technical field of rail transit, the inter-train direct communication method comprises the following steps: obtaining an ID of a current train and a train ID of a receiving terminal of the current train; the position information of the current train is sent to a receiving terminal through a Beidou satellite navigation system; receiving position information sent by other trains to the current train; according to the received position information of the other trains and the position information of the current train, the position of a communication train of the current train and the ID of the communication train are judged; the current train sends information to the communication train and receives the information sent by the communication train, and communication between the current train and the communication train is carried out. According to the inter-train direct communication method, the position sharing between the trains can be realized, the communication train of the current train is judged according to the train position, and the ID of the communication train is obtained, so that the current train can directly communicate with the communication train, the communication time delay can be shortened, the Doppler frequency shift is reduced, and the communication efficiency is improved. And trackside equipment and communication nodes can be reduced, and the running safety of the current train is ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transportation, and in particular relates to a method and a device for direct communication between trains. Background Art

[0002] During the operation of a train, there are usually multiple trains running around it at the same time. At this time, these running trains, the tracks they are on, and various related elements are collectively referred to as the "operation network". Trains are in the operation network. If there is a lack of communication between trains, it is easy for trains to collide with each other or the tracks to be occupied and unable to run, which will affect the operation of the trains.

[0003] At present, trains mainly rely on indirect communication between trains, ground and train to achieve information exchange. This traditional indirect communication mode requires the use of a large number of trackside equipment to transfer communication signals between trains, which not only increases the construction cost of the system, but also makes the architecture of the entire communication network complex and bloated, and the difficulty of subsequent maintenance and management increases accordingly. Moreover, during the multiple transfers between trains, ground and train, delays will inevitably occur. This delay may cause the train to react to emergencies in the high-speed train operation scenario, affecting driving safety and operation efficiency. In addition, because the indirect communication path is circuitous and interfered by various factors, the end-to-end speed difference of train communication is difficult to effectively control, which in turn causes a large Doppler frequency shift phenomenon.

[0004] Therefore, designing a method to realize direct communication between trains so that trains can communicate directly is of great significance to the efficient and safe operation of rail transit. Summary of the invention

[0005] In view of the shortcomings existing in the related technologies, the present invention provides a method and a device for direct communication between trains. During operation, a train can send its own position to other trains and receive the positions of other trains through the Beidou satellite navigation system, thereby realizing the sharing of positions between trains. The train can then determine the train with which the current train needs to communicate and the ID of the communication train based on the positions of each train, thereby realizing direct communication between trains.

[0006] In a first aspect, the present invention provides a method for direct communication between trains, comprising the following steps:

[0007] Get the ID of the current train and the train ID of the receiving terminal of the current train;

[0008] Send the current train location information to the receiving terminal via the Beidou satellite navigation system;

[0009] Receive location information sent by other trains to the current train;

[0010] According to the received location information of other trains and the location information of the current train, determine the location of the communication train of the current train and the ID of the communication train;

[0011] The current train sends information to the communication train and receives information sent by the communication train, thereby communicating between the current train and the communication train.

[0012] This technical solution enables the train to actively share its own position with other trains so that the position information of each train can be shared among the trains. The current train can then determine the communication train of the current train based on its own position and the positions of other surrounding trains, and obtain the ID of the communication train, so that the current train can communicate directly with the communication train. This can not only shorten the communication delay and reduce the Doppler frequency shift, but also reduce the trackside equipment and communication nodes, and ensure the safety of the current train operation.

[0013] In some of the embodiments, the information sent between the current train and the communicating train includes at least the ID of the other train. After receiving the information, the current train and / or the communicating train checks the train ID to determine whether the recipient is correct.

[0014] This technical solution ensures the communication effect by including the ID of the other train in the information sent between the current train and the communicating train, so that the current train and / or the communicating train can verify the train ID after receiving the information to determine whether the recipient is correct.

[0015] In some of the embodiments, the current train collects train operation information from an onboard judicial recorder to obtain an ID of the running train.

[0016] In some of the embodiments, the current train and the communication train respectively use the 5G-R frequency band to send information to each other.

[0017] In a second aspect, the present invention further provides a train-to-train direct communication module, comprising:

[0018] A data acquisition module is used to obtain train operation information from the on-board judicial recorder to obtain the ID of the current train and the train ID of the receiving terminal of the current train;

[0019] Beidou transceiver module, the Beidou transceiver module is connected to the Beidou satellite navigation system, and the Beidou transceiver module is used to send the location information of the current train to the receiving terminal, and receive the location information sent by other trains to the current train;

[0020] CPU module, the CPU module is connected to the Beidou transceiver module, and the CPU module is used to determine the position of the communication train and the ID of the communication train according to the position of the current train and the positions of other trains;

[0021] The communication module is used to send information to the communication train and receive information sent by the communication train to the current train.

[0022] This technical solution sets up a Beidou transceiver module to exchange information with the Beidou satellite navigation system, so that the Beidou transceiver module can send the location information of the current train to other trains through the Beidou satellite navigation system, and the Beidou transceiver module can also receive the location information sent to the current train by other trains through the Beidou satellite navigation system, thereby realizing the sharing of location information between trains; by setting up a CPU module, the CPU module determines the communication train of the current train and the ID of the communication train according to the current train position and the positions of other trains; by setting up a communication module, the communication module sends information to the communication train and receives information sent by the communication train to the current train, so as to realize direct communication between trains.

[0023] In some of the embodiments, the information sent by the Beidou transceiver module to the Beidou satellite navigation system includes at least the ID of the current train, the location information of the current train, and the ID of the receiving terminal;

[0024] The information sent by the Beidou satellite navigation system to the Beidou transceiver module includes at least the ID of the sending train and the location information of the sending train.

[0025] In some of the embodiments, the information sent by the communication module includes the ID of the receiving train, and the CPU module is connected to the communication module. The CPU module is also used to compare the train ID to determine whether the recipient is correct.

[0026] In some of the embodiments, a storage module is also included, and the storage module is connected to the data acquisition module and the Beidou transceiver module respectively;

[0027] 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.

[0028] In some of the embodiments, the communication module transmits the received information of the communication train to the CPU module. After the CPU module determines that the recipient is correct, the CPU module transmits the received information to the storage module for storage.

[0029] In some of the embodiments, the storage module sends the received communication train operation information to the on-board ATP device, and the on-board ATP device adjusts the operation information of the current train according to the information between the current train and the communication train.

[0030] Based on the above technical scheme, the direct communication method between trains in the embodiment of the present invention can realize the sharing of train positions according to the train ID based on the Beidou satellite navigation system, so that the current train can determine the communication train of the current train and the ID of the communication train according to the current train position and other train positions. After clarifying the communication train of the current train, the current train can communicate directly with the communication train, which can not only shorten the communication delay and reduce the Doppler frequency shift, but also reduce the trackside equipment and communication nodes, and ensure the safety of the current train operation.

[0031] The inter-train direct communication device in the embodiment of the present invention can realize direct communication between trains. Compared with the current indirect communication mode of vehicle-ground-vehicle, it has the advantages of significantly reducing the end-to-end speed difference of communication equipment, reducing Doppler frequency shift, and minimizing the trackside equipment and communication nodes, thereby shortening the communication delay. By using the Beidou satellite navigation system to obtain the current train position and the position of the communication train, it can fully utilize the short message receiving and sending function of the Beidou system, reduce the trackside equipment, and gradually transform the train control system from ground-centric to train-centric. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 A schematic diagram of the working principle of an embodiment of a direct communication device between trains of the present invention;

[0034] Figure 2 This is a schematic diagram of the working principle when a PWR module supplies power to other modules in one embodiment of the inter-train direct communication device of the present invention;

[0035] Figure 3 The figure is a schematic diagram of the structure of an embodiment of the inter-train direct communication device of the present invention applied in trains that communicate with each other. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the method or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In actual applications, when trains are running, there are usually multiple trains running at the same time within a certain range. The train operation process is affected by many factors, and the train operation information is prone to change. When the operation information of a certain train changes, it is necessary to adjust the operation information of other trains in time to prevent collisions between trains or occupation of the running tracks, etc., which will affect the safe operation of the trains.

[0041] Traditionally, trains use an indirect vehicle-ground-vehicle communication method, with ground equipment used as a transfer station to transmit information. This method not only requires the installation of communication equipment on the ground, but also causes communication delays during the multiple transfers of signals between vehicle-ground-vehicle, affecting driving safety and operating efficiency, and the communication process is easily affected by interference factors.

[0042] In the present invention, direct communication between trains is achieved to shorten communication delay, reduce Doppler frequency shift, and reduce trackside equipment and communication nodes.

[0043] In an exemplary embodiment of the inter-train direct communication method of the present invention, the inter-train direct communication method includes the following steps:

[0044] Get the ID of the current train and the train ID of the receiving terminal of the current train;

[0045] Send the current train location information to the receiving terminal via the Beidou satellite navigation system;

[0046] Receive location information sent by other trains to the current train;

[0047] According to the received location information of other trains and the location information of the current train, determine the location of the communication train of the current train and the ID of the communication train;

[0048] The current train sends information to the communication train and receives information sent by the communication train, thereby communicating between the current train and the communication train.

[0049] It should be noted that when the positions of multiple trains are known, the train that may affect the operation of the current train can be determined based on the position information of the current train. The current train needs to communicate with the train that may affect the operation of the current train to ensure the safety of the current train operation. Therefore, in some embodiments, the communicating train is a train that may affect the operation of the current train.

[0050] In the above-mentioned direct communication method between trains, the train actively shares its own position with other trains so that the position information of each train can be shared among the trains, so that the current train can determine the communication train of the current train based on its own position and the positions of other surrounding trains, and obtain the ID of the communication train. After the current train clearly identifies the communication object, it can communicate directly with the communication train, which can not only shorten the communication delay and reduce Doppler frequency shift, but also reduce trackside equipment and communication nodes, and ensure the safety of the current train operation.

[0051] In some embodiments of the present invention, the information sent between the current train and the communicating train includes at least the ID of the other train. After receiving the information, the current train and / or the communicating train performs a train ID check to determine whether the recipient is correct, thereby ensuring the accuracy of the communication object as well as the communication efficiency and communication effect.

[0052] In some embodiments, the information sent between the current train and the communication train is stored in the current train and the communication train respectively. Once an accident occurs, the stored communication information can accurately restore the interaction details between the trains before the accident, just like the black box record of an airplane. In addition, the storage of communication information can also help regulatory authorities to verify whether the train operation follows the established process.

[0053] In some embodiments, the current train and the communication train use the 5G-R frequency band to send information to each other. Compared with the currently used GSM-R frequency band, the 5G-R frequency band has the characteristics of ultra-large bandwidth, ultra-low latency, and massive connections. At the same time, 5G communication equipment is smaller in size and more suitable for configuration in the limited space on board.

[0054] As attached Figure 1 As shown, the present invention also provides a direct communication device between trains, which is installed on a train and is used to 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.

[0055] The data acquisition module is used to obtain train operation information from the on-board judicial recorder, and the ID of the running train can be obtained based on the train operation information. It should be noted that the ID of the running train includes the ID of the current train and the train with which the current train wants to share the location information of the current train. The train with which the current train wants to share the location information may be one train or multiple trains. The train with which the current train wants to share the location information is called a receiving terminal.

[0056] The Beidou transceiver module is connected to the data acquisition module, and the data acquisition module transmits the current train ID and receiving terminal ID to the Beidou transceiver module.

[0057] The Beidou transceiver module is connected to the Beidou satellite navigation system, and the Beidou transceiver module and the Beidou satellite navigation system send messages to each other; the Beidou transceiver module can send the location information of the current train to other trains through the Beidou satellite navigation system, and can also receive location information sent to the current train by other trains through the Beidou satellite navigation system.

[0058] Knowing the train ID of the receiving terminal, the Beidou transceiver module sends the location information of the current train to the receiving terminal through the Beidou satellite navigation system according to the train ID, so as to realize the sharing of the current train location information between the current train and the receiving terminal, so that the train of the receiving terminal can know the location information of the current train.

[0059] Similarly, when the current train serves as the receiving terminal of other trains, the Beidou transceiver modules of other trains will also send the location information to the current train through the Beidou satellite navigation system according to the current train ID, so that the current train can know the location information of other trains.

[0060] It can be understood that: the sharing of the current train's position information is active, that is, the current train needs to actively send its own position; the current train's reception of other trains' position information is passive, that is, the position information of other trains is actively sent to the current train.

[0061] It should be noted that the Beidou satellite navigation system can be regarded as an intermediate medium to realize the transmission of information between Beidou transceiver modules, wherein the current train is the sending end, and the location information of the current train is the message to be transmitted. It can be seen that the information sent by the Beidou transceiver module to the Beidou satellite navigation system, in addition to the location information of the current train and the ID of the current train, also needs to include the train ID of the receiving terminal, so that the Beidou satellite navigation system can send a message to the Beidou transceiver module of the receiving terminal train according to the train ID of the receiving terminal.

[0062] It should also be noted that, in actual applications, the Beidou satellite sends electromagnetic signals (navigation messages) to the Beidou transceiver module. The train's Beidou transceiver module calculates the train's own position based on the signals it receives from multiple satellites. This is common knowledge in the field and will not be elaborated on.

[0063] The communication module is used to send and receive information. The communication module uses the 5G-R frequency band to send information to the communication module of the communication train, and uses the 5G-R frequency band to receive information replied by the communication train.

[0064] It should be noted that the information sent by the communication module at least includes the ID of the recipient, so that after the current train and / or the communication train receives the information, the train ID can be compared to ensure the accuracy of the communication object.

[0065] That is, the information sent by the current train to the communication train includes the ID of the communication train, so that after the communication train receives the information, the communication train compares its own ID with the ID in the information sent by the current train.

[0066] Similarly, the reply from the communication train to the current train also includes at least the ID of the current train, so that after the current train receives the reply, the current train compares its own ID with the ID in the reply information from the communication train.

[0067] It should also be noted that, since the information sent by the current train includes the ID of the current train, in some embodiments, there is no need to repeatedly mark the ID of the sending train in the information sent between the current train and the communicating train.

[0068] The CPU module serves as the "brain" of the direct communication device between trains. It is used to issue instructions to the data acquisition module, Beidou transceiver module and communication module. The data acquisition module, Beidou transceiver module and communication module respond according to the instructions issued by the CPU module and perform corresponding operations.

[0069] Specifically, the CPU module transmits information including the ID of the recipient and the communication content to the communication module, and the communication module then sends the information to the communication module of the communication train.

[0070] The CPU module is also used to compare the current train ID with the ID of the recipient in the received information. If the recipient is correct, the current train communicates directly with the communication train. If the recipient is incorrect, the sending train is informed in time.

[0071] In some embodiments, the CPU module determines the communication train of the current train and the ID of the communication train based on the location information of the current train.

[0072] The above-mentioned inter-train direct communication device also includes a storage module, which is connected to the CPU module and is used to execute instructions issued by the CPU module and / or receive and store information sent by the CPU module.

[0073] The storage module is respectively connected to the data acquisition module and the Beidou transceiver module; 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 to store the train operation information in the storage module.

[0074] The communication module transmits the received information of the communication train to the CPU module. After the CPU module determines that the recipient is correct, the CPU module transmits the received information to the storage module for storage.

[0075] In some embodiments, the storage module provides the information received by the storage module to the on-board ATP device, and the on-board ATP device adjusts the train operation parameters according to the communication content to ensure the safety of the train operation.

[0076] It should be noted that the train operating parameters include but are not limited to the train operating speed. The train operating parameters and the on-board ATP equipment adjusting the train operating parameters according to the communication content belong to the existing technology in this field and will not be repeated here.

[0077] The above-mentioned direct communication device between trains also includes a PWR module, which is connected to a power supply and used to power the Beidou transceiver module, the communication module, the CPU module, and the data acquisition module.

[0078] In some embodiments, the PWR module is provided with a backup power supply, which can temporarily power the Beidou transceiver module, the communication module, the CPU module, and the data acquisition module.

[0079] In other embodiments, after a power outage, the PWR module can also provide 30 minutes of uninterrupted power supply to the Beidou transceiver module, communication module, CPU module, and data acquisition module to ensure the reliability of the direct communication device between trains.

[0080] The above-mentioned direct communication device between trains also includes a shell, and the Beidou transceiver module, communication module, CPU module, data acquisition module and PWR module are respectively installed in the shell in a pluggable manner.

[0081] By designing the direct communication device between trains to be modular, and installing each module in the shell in a plug-in manner, when one of the modules fails, the faulty module can be directly replaced by a normal module, which is convenient to operate and reduces the difficulty of maintenance and fault repair time.

[0082] It should be noted that the trains that communicate with each other are respectively equipped with train-to-train direct communication devices to enable direct communication between the trains.

[0083] In the above-mentioned direct communication device between trains, when the current train sends information to the surrounding trains, the data acquisition module of the current train collects the train operation data and the receiving terminal ID from the on-board judicial recorder of the current train, and the Beidou transceiver module of the current train obtains the "surrounding train position, ID, and own position" from the Beidou satellite navigation system, and provides this information to the CPU module of the current train for processing, and finally analyzes the "communication train position, ID, and information to be sent", and generates a sending instruction for the communication module to send the information to be sent to the corresponding ID communication train.

[0084] In the above-mentioned direct communication device between trains, when the current train receives information from surrounding trains, that is, when the communication module of the current train receives information sent by surrounding trains through the communication modules of surrounding trains, the communication module of the current train transmits the received information to the CPU module of the current train. After comparing the ID information, the CPU module of the current train determines that the information receiving terminal ID is consistent with its own ID, and then sends the received information to the storage module of the current train. Finally, the storage module of the current train transmits the received information to the ATP device of the current train for protection calculation and safe operation of the current train.

[0085] The working process of the above train-to-train direct communication device is as follows:

[0086] The data acquisition module obtains the train operation information from the on-board judicial recorder, and obtains the ID of the current train and the train ID of the receiving terminal of the current train according to the train operation information.

[0087] The data acquisition module transmits information including the current train ID and the train ID of the receiving terminal to the storage module; the storage module receives information including the current train ID and the train ID of the receiving terminal from the data acquisition module, the storage module stores the information including the current train ID and the train ID of the receiving terminal and transmits it to the Beidou transceiver module, the Beidou transceiver module extracts the information including the current train ID and the train ID of the receiving terminal from the storage module, the Beidou transceiver module sends information including the train ID and the current train position to the Beidou satellite navigation system, and the Beidou satellite navigation system sends the current train ID and position information to the Beidou transceiver module of the corresponding train according to the ID of the receiving terminal.

[0088] It should be noted that when other trains send location information to the current train through the Beidou satellite navigation system, the other trains act as the sending end and the current train acts as the receiving terminal.

[0089] The sending train sends the ID and location information of the sending train to the Beidou transceiver module of the current train through the Beidou satellite navigation system, so that the current train can obtain the location information of the sending train. It should be noted that the sending train includes but is not limited to the train of the receiving terminal, but the sending train is usually the train of the receiving terminal.

[0090] After receiving the location information of the sending train, the Beidou transceiver module of the current train transmits the received information to the storage module and the CPU module respectively. The storage module and the CPU module respectively receive information containing the ID of the sending train and the location information of the sending train from the Beidou transceiver module.

[0091] Based on the received information including the ID of the sending train and the location information of the sending train, the CPU module determines the trains that may affect the operation of the current train based on the current train's own position and the sending train's position, and determines the communication train of the current train and the ID of the communication train.

[0092] The CPU module transmits instructions containing the current train ID and the communication train ID to the Beidou transceiver module to relocate the position of the current train and the communication train; the Beidou transceiver module receives instructions containing the current train ID and the communication train ID from the CPU module, and transmits the information including the current train ID and the position information of the current train to the Beidou satellite navigation system, so that the Beidou satellite navigation system sends the current train ID and the position information of the current train to the Beidou transceiver module of the communication train, and the Beidou transceiver module of the communication train sends the ID of the communication train and the position information of the communication train to the Beidou transceiver module of the current train through the Beidou satellite navigation system, so that the current train and the communication train can regain the position of the current train and the position of the communication train.

[0093] The CPU module transmits instructions containing the communication train position, communication train ID, communication content, etc. to the communication module. The communication module receives instructions containing the communication train position, communication train ID, communication content, etc. from the CPU module. The communication module transmits the received communication train position, communication train ID, communication content, etc. to the communication train.

[0094] The communication module receives information transmitted by the communication train and transmits the received information to the CPU module, and the CPU module receives information transmitted by the communication train received by the communication module from the communication module.

[0095] The CPU module transmits the information transmitted by the received communication train to the storage module, the storage module receives the information transmitted by the communication train received by the CPU module from the CPU module, the storage module provides the received communication train transmission information to the on-board ATP device, and the on-board ATP device adjusts the operating parameters of the current train to ensure the safe operation of the current train.

[0096] Since the CPU module is usually transmitted in the form of instructions, the working principle of the above-mentioned inter-train direct communication device can be expressed as follows:

[0097] The data acquisition module obtains the train operation information from the on-board judicial recorder, and obtains the ID of the running train according to the train operation information, wherein the ID of the running train includes the ID of the current train and the IDs of other running trains.

[0098] The data acquisition module transmits information including "information to be transmitted, receiving terminal ID" and other contents to the storage module; the storage module receives information including "information to be transmitted, receiving terminal ID" and other contents from the data acquisition module; it should be noted that the receiving terminal ID is the ID of other running trains, and other trains may be the communication trains of the current train.

[0099] The storage module transmits information including "its own position, receiving terminal ID" and other contents to the Beidou transceiver module. The Beidou transceiver module extracts information including "its own position, receiving terminal ID" and other contents from the storage module. The Beidou transceiver module transmits information including "its own position, receiving terminal ID" and other contents to the Beidou satellite navigation system. The Beidou satellite navigation system responds to the information transmitted by the Beidou transceiver module.

[0100] The Beidou transceiver module receives information including "surrounding train positions, IDs, own positions" and other contents from the Beidou satellite navigation system. The Beidou transceiver module transmits the received information including "surrounding train positions, IDs, own positions" and other contents to the storage module and the CPU module respectively. The storage module and the CPU module respectively receive the information including "surrounding train positions, IDs, own positions" and other contents from the Beidou transceiver module.

[0101] Based on the received information including "surrounding train positions, IDs, own positions", etc., the CPU module determines the trains that may affect the operation of the current train based on the current train's own position and the positions of surrounding trains, and determines the communication train of the current train and the ID of the communication train.

[0102] The CPU module transmits instructions containing content such as "locating its own position, communication train position" to the Beidou transceiver module. The Beidou transceiver module receives instructions containing content such as "locating its own position, communication train position" from the CPU module, and transmits information including "its own ID, communication train ID" to the Beidou satellite navigation system to re-acquire the current train position and the communication train position.

[0103] The CPU module transmits instructions containing contents such as "communication train position, ID, and information to be transmitted" to the communication module, and the communication module receives instructions containing contents such as "communication train position, ID, and information to be transmitted" from the CPU module.

[0104] The communication module receives information transmitted by the communication train and transmits the received information to the CPU module, and the CPU module receives information transmitted by the communication train received by the communication module from the communication module.

[0105] The CPU module transmits the information transmitted by the received communication train to the storage module, the storage module receives the information transmitted by the communication train received by the CPU module from the CPU module, and the storage module provides the received communication train transmission information to the on-board ATP device.

[0106] The above-mentioned direct communication device between trains is configured to exchange information with the Beidou satellite navigation system by setting a Beidou transceiver module, so as to use the Beidou satellite navigation system to obtain its own position and the positions of other running trains; by setting a CPU module, the CPU module determines the communication train of the current train and the ID of the communication train according to the current train position; by setting a communication module, the communication module sends information to the communication train and receives information sent by the communication train to the current train, so as to realize direct communication between trains.

[0107] The following is a detailed description of the workflow of the above-mentioned inter-train direct communication device, taking five trains as an example. The IDs of the five trains are A, B, C, D, and E, respectively. Among them, B, C, D, and E are the receiving terminals of train A, and train A sends the position of train A 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, and trains B, C, D, and E send their respective positions to train A through the Beidou satellite navigation system.

[0108] The above-mentioned inter-train direct communication method comprises the following steps:

[0109] The data acquisition module of train A obtains train operation information from the onboard judicial recorder of train A, thereby obtaining the IDs of four trains B, C, D, and E. The data acquisition module of train A transmits the acquired IDs of five trains A, B, C, D, and E to the storage module of train A, and the storage module of train A stores the IDs of five trains A, B, C, D, and E, and the storage module of train A transmits the IDs of five trains A, B, C, D, and E to the Beidou transceiver module of train A.

[0110] The Beidou transceiver module of train A will send the information containing the ID of train A, the location information of train A, and the IDs of the receiving terminal trains B, C, D, and E to the Beidou satellite navigation system. The Beidou satellite navigation system will send the ID of train A and the location information of train A 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 receive the ID of train A and the location information of train A respectively.

[0111] The Beidou transceiver modules of the four trains B, C, D, and E respectively send the ID and location information of their respective trains to the Beidou transceiver module of train A through the Beidou satellite navigation system. The Beidou transceiver module of train A respectively receives the ID and location information of the four trains B, C, D, and E.

[0112] After receiving the position information of five trains A, 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 positions of four trains B, C, D and E according to the position 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.

[0113] The CPU module of Train A transmits information including communication content and the ID of Train B to the communication module of Train A, and the communication module of Train A uses the 5G-R frequency band to send the information to the communication module of Train B.

[0114] The communication module of Train B transmits the received information from Train A to the CPU module of Train B. The CPU module of Train B compares the train ID in the received information from Train A with the ID of Train B. If the two are consistent, the CPU module of Train B stores the received information from Train A in the storage module of Train B. The CPU module of Train B responds, and the CPU module of Train B transmits the reply content including the ID of Train A to the communication module of Train B. The communication module of Train B uses the 5G-R frequency band to send the information to the communication module of Train A.

[0115] The communication module of Train A transmits the received information of Train B to the CPU module of Train A. The CPU module of Train A compares the train ID in the received information of Train B with the ID of Train A. If the two are consistent, the CPU module of Train A stores the received information of Train B in the storage module of Train A. The CPU module of Train A responds, and the CPU module of Train A transmits the reply content including the ID of Train B to the communication module of Train A. The communication module of Train A uses the 5G-R frequency band to send the information to the communication module of Train B.

[0116] During or after the communication between Train A and Train B, the operating parameters of Train A and / or the operating parameters of Train B need to be adjusted to ensure the normal operation of Train A and Train B.

[0117] In some embodiments, during or after the communication between Train A and Train B, the storage module of Train A transmits the information during the communication process to the on-board ATP device of Train A, and the on-board ATP device of Train A adjusts the operating parameters of Train A.

[0118] In other embodiments, the storage module of train B transmits the information in the communication process to the on-board BTP device of train B, and the on-board BTP device of train B adjusts the operating parameters of train B.

[0119] In some other embodiments, during or after the communication between Train A and Train B, the storage module of Train A transmits the information during the communication process to the on-board ATP device of Train A, and the on-board 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 on-board ATP device of Train B, and the on-board ATP device of Train B adjusts the operating parameters of Train B.

[0120] The above-mentioned direct communication device between trains can realize direct communication between trains. Compared with the current indirect communication method of vehicle-ground-vehicle, it has the advantages of significantly reducing the end-to-end speed difference of communication equipment, reducing Doppler frequency shift, and minimizing trackside equipment and communication nodes, thereby shortening communication delay. By using the Beidou satellite navigation system to obtain the current train position and the position of the communication train, it can fully utilize the short message receiving and sending function of the Beidou system, reduce trackside equipment, and gradually transform the train control system from ground-centric to train-centric.

[0121] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0122] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for direct communication between trains, characterized in that: The following steps are involved: Get the ID of the current train and the train ID of the receiving terminal of the current train; Send the current train location information to the receiving terminal via the Beidou satellite navigation system; Receive location information sent by other trains to the current train; According to the received location information of other trains and the location information of the current train, determine the location of the communication train of the current train and the ID of the communication train; The current train sends information to the communication train and receives information sent by the communication train, thereby communicating between the current train and the communication train.

2. The train-to-train direct communication method according to claim 1, characterized in that: The information sent between the current train and the communication train includes at least the ID of the other train. After receiving the information, the current train and / or the communication train checks the train ID to determine whether the recipient is correct.

3. The train-to-train direct communication method according to claim 1, characterized in that: The current train collects train operation information from the on-board judicial recorder to obtain the ID of the running train.

4. The train-to-train direct communication method according to claim 1, characterized in that: Currently, trains and communication trains use the 5G-R frequency band to send information to each other.

5. A direct communication module between trains, characterized in that: include: A data acquisition module is used to obtain train operation information from the on-board judicial recorder to obtain the ID of the current train and the train ID of the receiving terminal of the current train; A Beidou transceiver module, the Beidou transceiver module is connected to the Beidou satellite navigation system, and the Beidou transceiver module is used to send the location information of the current train to the receiving terminal, and receive the location information sent by other trains to the current train; A CPU module, the CPU module is connected to the Beidou transceiver module, and the CPU module is used to determine the position of the communication train and the ID of the communication train according to the position of the current train and the positions of other trains; A communication module, wherein the communication module is used to send information to a communication train and receive information sent by the communication train to the current train.

6. The inter-train direct communication module according to claim 5, characterized in that: The information sent by the Beidou transceiver module to the Beidou satellite navigation system at least includes the ID of the current train, the location information of the current train and the ID of the receiving terminal; The information sent by the Beidou satellite navigation system to the Beidou transceiver module includes at least the ID of the sending train and the location information of the sending train.

7. The inter-train direct communication module according to claim 5, characterized in that: The information sent by the communication module includes the ID of the receiving train. The CPU module is connected to the communication module. The CPU module is also used to compare the train ID to determine whether the receiving object is correct.

8. The inter-train direct communication module according to claim 7, characterized in that: It also includes a storage module, which is connected to the data acquisition module and the Beidou transceiver module respectively; 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.

9. The inter-train direct communication module according to claim 8, characterized in that: The communication module transmits the received information of the communication train to the CPU module. After the CPU module determines that the recipient is correct, the CPU module transmits the received information to the storage module for storage.

10. The inter-train direct communication module according to claim 8, characterized in that: The storage module sends the received communication train operation information to the on-board ATP device, and the on-board ATP device adjusts the operation information of the current train according to the information between the current train and the communication train.

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