Train data transmission method and train data transmission system

Abstract

The invention is suitable for the technical field of train operation detection, and provides a train data transmission method and a train data transmission system.The method executed by a data receiving terminal comprises the steps that multiple pieces of vehicle identification information, stored by the data receiving terminal, of a target train are obtained, and each piece of vehicle identification information indicates one carriage in the target train; under the condition that the first data message is received, searching first vehicle identification information in the multiple pieces of vehicle identification information; and under the condition that first vehicle identification information is found from the multiple pieces of vehicle identification information, the first data message is sent to a locomotive control terminal, and the locomotive control terminal is used for determining the running state of the first compartment based on the running state data so as to control running of the target train according to the running state of the first compartment. The running state data can be timely transmitted to the locomotive control terminal so as to control the running of the train, and the running safety of the train is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of train operation detection, and in particular, relates to a method for transmitting train data and a system for transmitting train data. Background Art

[0002] As an important pillar of the national economy, railway transportation carries a large amount of cargo transportation tasks, and has high requirements on the punctuality, stability, safety and energy efficiency of freight train operation.

[0003] At present, there are two methods for detecting the operating status of freight trains, such as safety. One is that after the freight train arrives at a designated location, the reading device of the 5T detection station at the designated location obtains the operating status data of the freight train and transmits it to the locomotive control terminal to detect the operating status of the freight train. The other is that after the freight train arrives at a designated location, the operating status data collected by the data acquisition device is sent to a designated server through a mobile communication network, so that the server can analyze the operating status data and then send the analysis results to the locomotive control terminal.

[0004] Both of the above methods require the freight train to arrive at the designated location before data can be transmitted, and the timeliness of the data cannot be guaranteed. Therefore, how to timely transmit the operating status data of each carriage in the freight train to the locomotive control terminal for data analysis in order to improve the locomotive control quality, train operation safety and operation quality has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The embodiments of the present application provide a train data transmission method and a train data transmission system, which can solve the problem of how to timely transmit the operating status data of each carriage in a freight train to the locomotive control terminal for data analysis, so as to improve the locomotive control quality, train operation safety and operation quality.

[0006] In a first aspect, an embodiment of the present application provides a method for transmitting train data, which is applied to a data receiving terminal, wherein the data receiving terminal establishes a communication connection with a locomotive control terminal, wherein the locomotive control terminal is used to control the travel of a target train, and the target train is equipped with a data receiving terminal, and the method includes:

[0007] Acquire multiple vehicle identification information of the target train stored in the data receiving terminal, each vehicle identification information indicates a carriage in the target train;

[0008] When receiving the first data message, searching for the first vehicle identification information among the plurality of vehicle identification information, the first data message including the first vehicle identification information and the running status data of the first carriage, the running status data being used to indicate the running condition of the first carriage;

[0009] When the first vehicle identification information is found from multiple vehicle identification information, the first data message is sent to the locomotive control terminal, and the locomotive control terminal is used to determine the operating status of the first car based on the operating status data to control the travel of the target train according to the operating status of the first car.

[0010] In some embodiments, the method further comprises:

[0011] When it is detected that the sending of the first data message fails, the first data message is resent to the locomotive control terminal.

[0012] Exemplarily, the method further includes: when the first vehicle identification information is not found in the multiple vehicle identification information, deleting the first data message from the received data messages, and not sending the deleted data message.

[0013] In a second aspect, an embodiment of the present application provides another method for transmitting train data, which is applied to a data acquisition terminal, wherein the data acquisition terminal establishes a communication connection with a data receiving terminal, and the method includes:

[0014] Acquire running status data of the first carriage and first vehicle identification information, the running status data including at least one of pressure data or acceleration data, the pressure data indicating the pressure in the brake cylinder in the first carriage, the acceleration data indicating the running stability of the first carriage, the first carriage being equipped with a data acquisition terminal;

[0015] When the data acquisition terminal is in a pressure data sending window period and / or the acceleration data is abnormal, generating a first data message based on the running status data and the first vehicle identification information;

[0016] The first data message is sent to a data receiving terminal, and the data receiving terminal is used to execute the method of any one of the embodiments described in the first aspect.

[0017] In some embodiments, sending the first data message to a data receiving terminal includes:

[0018] When the data acquisition terminal establishes a communication connection with the target communication base station, the first data message is sent to the data receiving terminal through the first communication mode, and the target communication base station is a 5G communication base station or a 4G communication base station;

[0019] When the data acquisition terminal has not established a communication connection with the target communication base station, the first data message is sent to the data receiving terminal through the second communication mode.

[0020] In some embodiments, the first data message further includes identity information of a data receiving terminal, and sending the first data message to the data receiving terminal through the first communication method includes:

[0021] The first data message is sent to a target communication base station, and the target communication base station is used to send the first data message to a data receiving terminal based on the identity information.

[0022] In some embodiments, before generating the first data message based on the operating status data and the first vehicle identification information, the method further includes:

[0023] When the first pressure threshold and the second pressure threshold are both less than the pressure data, it is determined that the data acquisition terminal is in the pressure data sending window period, the first pressure threshold indicates that the first carriage starts braking, and the second pressure threshold indicates that the first carriage ends braking;

[0024] When the pressure data is less than the second pressure threshold, determining that the data acquisition terminal is not in a driving state;

[0025] When the acceleration data is greater than a preset acceleration threshold, it is determined that the acceleration data is abnormal.

[0026] In some embodiments, the data acquisition terminal establishes a chain communication connection with the first data acquisition terminal and the second data acquisition terminal in the train to which the first carriage belongs, and the method further includes:

[0027] When the second data message is received, the second data message and the first data message are sent to the first data acquisition terminal. The second data message is a data message sent by the second data acquisition terminal to the data acquisition terminal via the second communication method. The first data acquisition terminal is used to send the second data message and the first data message to the data receiving terminal.

[0028] Exemplarily, each carriage in the train to which the first carriage belongs is equipped with a data acquisition terminal, and the data acquisition terminals in each carriage establish a chain communication connection with each other. For the data acquisition terminal in the first vehicle, when it receives the second data message sent by the upper-level data acquisition terminal (the second data acquisition terminal) in the chain communication connection, if the data acquisition terminal determines that it has established a communication connection with the target communication base station, it will send the first data message and the second data message to the data receiving terminal based on the first communication method.

[0029] If the data acquisition terminal determines that it has not established a communication connection with the target communication base station, it will send the first data message and the second data message to the next level data acquisition terminal (first data acquisition terminal) in the chain communication connection based on the second communication method, so that the first data acquisition terminal will continue to send the received data message to the data receiving terminal. It can be understood that the first data acquisition terminal will still send the received data message to the data receiving terminal based on the first communication method when the communication connection is established between itself and the target communication base station, and vice versa, it will send the received data message to the next level data acquisition terminal connected to itself, and so on until the last level data acquisition terminal sends the received message to the data receiving terminal.

[0030] Exemplarily, the operating status data also includes at least one of the humidity of the track where the first carriage is located, the wind speed outside the first carriage, the lateral displacement of the first carriage, or the wheel-rail force between the track where the first carriage is located and the first carriage.

[0031] Exemplarily, the first data message also includes the collection time of each data in the running status data.

[0032] In a third aspect, an embodiment of the present application provides a system for transmitting train data, the system comprising:

[0033] A data acquisition terminal is used to obtain a first data message of a first carriage, the first data message includes running status data of the first carriage and first vehicle identification information, the running status data indicates the driving condition of the first carriage; send the first data message to a data receiving terminal, the first carriage is equipped with a data acquisition terminal;

[0034] The data receiving terminal is used to obtain multiple vehicle identification information of the target train stored in the terminal, each vehicle identification information indicates a car in the target train; when the first data message is received, the first vehicle identification information is searched in the multiple vehicle identification information; when the first vehicle identification information is found in the multiple vehicle identification information, the first data message is sent to the locomotive control terminal, and the target train is equipped with a data receiving terminal;

[0035] The locomotive control terminal is used to determine the operating status of the first car based on the operating status data, so as to control the travel of the target train according to the operating status of the first car.

[0036] In some embodiments, the data receiving terminal includes:

[0037] A first communication module, used for receiving a data message sent by a data acquisition terminal through a first communication mode, and sending the received data message to a first processor;

[0038] A second communication module, used for receiving a data message sent by the data acquisition terminal through a second communication mode, and sending the received data message to the first processor;

[0039] A first processor is used to send a first data message to a third communication module when the first vehicle identification information is found from the plurality of vehicle identification information;

[0040] The third communication module is used to send the first data message to the locomotive control terminal through a third communication method.

[0041] In some embodiments, the data collection terminal includes:

[0042] A second processor is used to detect the communication connection result between the data collection terminal and the target communication base station;

[0043] A fourth communication module, configured to send the first data message to the first communication module through the first communication mode when the second processor determines that the data acquisition terminal has established a communication connection with the target communication base station;

[0044] The fifth communication module is used to send the first data message to the second communication module through the second communication mode when the second processor determines that the data acquisition terminal has not established a communication connection with the target communication base station.

[0045] Exemplarily, the data collection terminal further includes a sixth communication module, which is used to receive an information editing instruction from the information writing device and send the information editing instruction to the second processor;

[0046] The second processor is further used to edit at least one of the stored vehicle identification information, identity information, preset acceleration threshold, first pressure threshold or second pressure threshold in response to the information editing instruction.

[0047] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it can implement the steps of the train data transmission method described in the first aspect or the second aspect above.

[0048] In a fifth aspect, an embodiment of the present application provides a computer program product. When the computer program product runs on a processor, the processor executes the steps of the train data transmission method described in the first aspect or the second aspect above.

[0049] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows: the data receiving terminal installed in the target train can receive data messages including motion status data in real time, so that when the vehicle identification information in the data message is in the multiple vehicle identification information existing in the target train, the data message is promptly sent to the locomotive control terminal with which the communication connection is established, so that the locomotive control terminal can timely analyze the running status of the carriage based on the driving status of the carriage indicated by the running status data, thereby timely controlling the target train, improving the locomotive control accuracy, train operation safety and operation quality. In addition, there is no need to transmit the running status data after the target train arrives at the designated location, so as to realize the real-time transmission of the running status data and ensure the real-time nature of the running status data received by the locomotive control terminal. Without the need to establish an additional server or install an additional reading device at the 5T detection station, the locomotive control terminal can obtain the running status data of the carriage in the target train in a timely manner, reducing the hardware complexity of the transmission of the running status data.

[0050] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1 It is a structural schematic diagram of a train data transmission system according to an embodiment of the present application;

[0053] Figure 2 is a structural diagram of a data receiving terminal in an embodiment of the present application;

[0054] Figure 3 is a schematic diagram of the structure of the improved TMIS in the embodiment of the present application;

[0055] Figure 4 It is a structural diagram of a data acquisition terminal in an embodiment of the present application;

[0056] Figure 5 It is a structural diagram of a data acquisition terminal in an application scenario;

[0057] Figure 6 It is a flow chart of a method for transmitting train data in an embodiment of the present application;

[0058] Figure 7It is a flow chart of another method for transmitting train data in an embodiment of the present application;

[0059] Figure 8 It is a schematic diagram of a process of sending a first data message by a data acquisition terminal provided in an embodiment of the present application;

[0060] Fig. 9 It is a flow chart of judging whether a data acquisition terminal is in a pressure data sending window period and whether acceleration data is abnormal, provided in an embodiment of the present application. DETAILED DESCRIPTION

[0061] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0062] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0063] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0064] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0065] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0066] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0067] Figure 1 Schematic diagram of the structure of a train data transmission system in an embodiment of the present application. Figure 1 As shown, the transmission system includes a data receiving terminal 110, a locomotive control terminal 120 and at least one data acquisition terminal 130. The data receiving terminal 110 establishes a communication connection with the locomotive control terminal 120, and each data acquisition terminal 130 establishes a communication connection with the data receiving terminal 110.

[0068] like Figure 1 As shown, the transmission system is installed in a target train, which includes a locomotive 140 and at least one carriage 150. A data acquisition terminal 130 is installed in each carriage 150, and a data receiving terminal 110 and a locomotive control terminal 120 can be installed in the locomotive 140. The target train can be any of a freight train, a high-speed train, a subway or a light rail train. The embodiment of the present application takes a freight train, especially a heavy-load train with a large number of carriages, for example, a heavy-load train with 100 or 200 carriages as an example.

[0069] In the case where the transmission system includes a plurality of data collection terminals, the plurality of data collection terminals 130 establish chain communication connections with each other.

[0070] The data acquisition terminal 130 is used to obtain a first data message from the first carriage, the first data message including the operating status data of the first carriage and the first vehicle identification information, the operating status data indicating the driving condition of the first carriage; the first data message is sent to the data receiving terminal 110, and the data acquisition terminal 130 is installed in the first carriage.

[0071] The data receiving terminal 110 is used to obtain multiple vehicle identification information of the target train stored in itself, each vehicle identification information indicates at least one car in the target train; when receiving the first data message, the first vehicle identification information is searched in the multiple vehicle identification information; when the first vehicle identification information is found in the multiple vehicle identification information, the first data message is sent to the locomotive control terminal 120.

[0072] The locomotive control terminal 120 is used to determine the running state of the first carriage based on the running state data, so as to control the travel of the target train according to the running state of the first carriage. The locomotive control terminal 120 may be a locomotive safety information integrated monitoring device, also known as a locomotive TAX box.

[0073] In some embodiments, Figure 2 As shown, the data receiving terminal 110 includes:

[0074] The first communication module 111 is used to receive a data message sent by the data acquisition terminal through a first communication mode, and send the received data message to the first processor;

[0075] The second communication module 112 is used to receive the data message sent by the data acquisition terminal through the second communication mode, and send the received data message to the first processor 113;

[0076] The first processor 113 is used to send the first data message to the third communication module 114 when the first vehicle identification information matches the plurality of vehicle identification information successfully;

[0077] The third communication module 114 is used to send the first data message to the locomotive control terminal 120 through a third communication method.

[0078] In application, for example, the first communication mode may be mobile communication, for example, the fourth generation mobile communication (The 4th Generation mobile communication technology, 4G communication) or the fifth generation mobile communication (The 5th Generation mobile communication technology, 5G communication), and the corresponding first communication module 111 may be a mobile communication module, for example, a 4G or 5G communication module. The second communication mode may be long range radio (Long Range Radio, LoRa) communication, and the corresponding second communication module 112 may be a LoRa communication module. The third communication mode may be serial communication, and the corresponding third communication module 114 may be an RS485 communication module.

[0079] In some embodiments, the first processor 113 is further configured to delete the first data message from the received data messages when the first vehicle identification information is not found in the plurality of vehicle identification information, and the deleted data message is not sent.

[0080] It is understandable that when the target train is running in parallel with other trains equipped with the above-mentioned transmission system, the data receiving terminal in each train may receive data messages sent by data acquisition terminals other than itself. In order to improve the reliability of the running status data, the data receiving terminal of each train will match the vehicle identification information in the data message with multiple vehicle identification information of its own train when receiving the data message, so as to determine whether the received data message is the data message sent by the data acquisition terminal in its own train. In this way, the data receiving terminal can avoid sending data messages of other trains to the locomotive control terminal to which it is connected, thereby reducing the probability of the locomotive control terminal miscontrolling the target train.

[0081] In some embodiments, the first processor 113 is further configured to resend the first data message to the locomotive control terminal 120 when detecting that the first data message fails to be sent.

[0082] In order to save the connection between the data receiving terminal and the locomotive control terminal and control the size of the data receiving terminal, in some embodiments, each module in the data receiving terminal 110 can be integrated on a circuit board card and inserted into a dedicated slot of the locomotive control terminal through the circuit board card.

[0083] In order to timely transmit the carriage motion status data to the locomotive control terminal while reducing the complexity of the above transmission system, in some embodiments, the data receiving terminal may be an improved Train Management and Information System (TMIS).

[0084] like Figure 3 As shown, a 4G or 5G communication module is added to the TMIS as the first communication module 111, a LoRa communication module is used as the second communication module 112, a first antenna and a second antenna, wherein the first antenna is electrically connected to the first communication module 111, and the second antenna is electrically connected to the second communication module 112, so that the 4G or 5G communication module and the LoRa communication module can receive data messages through their respective antennas. The original RS485 communication module 2 of the TMIS is used as the third communication module 114, and the microprocessor is used as the first processor 113, so that the improved TMIS, i.e., the data receiving terminal 110, can be obtained.

[0085] Among them, the LoRa communication module communicates with the microprocessor through a serial communication bus, and is used to obtain data from the microprocessor and transmit it on the air interface channel, and send the data message received from the air interface channel to the microprocessor. The 4G or 5G module communicates with the microprocessor through a serial communication bus, and is used to obtain data from the microprocessor and send it to the target communication base station, such as a mobile communication base station, and send the data received from the target communication base station (including data messages) to the microprocessor. The RS485 communication module 2 receives the data (including data messages) sent to the microprocessor by the LoRa communication module and the 4G or 5G module from the microprocessor through serial communication, connects to the locomotive control terminal through a dedicated cable, and sends data to the locomotive control terminal.

[0086] like Figure 3 As shown, the data receiving terminal 110 may also include a locomotive electronic tag programming module, an RS485 communication module 1, an RS232 communication module, a power processing module, an indicator light, and a backplane connector.

[0087] The locomotive electronic tag programming module communicates with the microprocessor through a serial peripheral interface (SPI) bus, and is used to initialize, configure and / or program the locomotive electronic tag. The RS485 communication module 1 is connected to the RS485 communication line on the backplane of the locomotive control terminal 120 through the pins on the backplane connector, and is used to obtain the data sent by the locomotive control terminal and send the data to the microprocessor through serial communication, so that the microprocessor can respond in time.

[0088] The RS232 communication module is connected to external devices except the locomotive control terminal through a 9-pin D-subminiature 9 (DB9) cable connector to obtain data input by the external device and send the data to the microprocessor through serial communication.

[0089] The power processing module is used to supply power to the data receiving terminal 110. The indicator light is configured to indicate at least one of the communication status, operation status or fault information of the data receiving terminal through different colors and flashing modes.

[0090] Through the above-mentioned data receiving terminal, a simple communication module and antenna are integrated on the original TMIS to send data messages to the locomotive control terminal in a timely manner, so that the locomotive control terminal can directly analyze the operating status of the carriages in the train and control the movement of the train. There is no need to install additional reading devices at the 5T detection station on the ground or establish a server for data analysis, which greatly reduces the cost of the locomotive control terminal to obtain operating status data and the complexity of the transmission system.

[0091] In some embodiments, Figure 4As shown, the data collection terminal 130 includes:

[0092] The second processor 131 is used to detect the communication connection result between the data collection terminal and the target communication base station.

[0093] The fourth communication module 132 is configured to send the first data message to the first communication module through the first communication mode when the second processor determines that the data acquisition terminal has established a communication connection with the target communication base station.

[0094] The fifth communication module 133 is used to send the first data message to the second communication module through the second communication mode when the second processor determines that the data acquisition terminal has not established a communication connection with the target communication base station.

[0095] like Figure 4 As shown, the data acquisition terminal 130 also includes a data acquisition module 134, which is used to obtain the operating status data of the first compartment and the first vehicle identification information, and send the operating status data and the first vehicle identification information to the second processor 131, the operating status data includes at least one of pressure data or acceleration data, the pressure data indicates the pressure in the brake cylinder in the first compartment, and the acceleration data indicates the smoothness of the driving of the first compartment.

[0096] The second processor 131 is further configured to generate a first data message based on the operating status data and the first vehicle identification information when the data acquisition terminal 130 is in a pressure data sending window and / or the acceleration data is abnormal.

[0097] In some embodiments, the data acquisition module 134 includes a pressure measurement sensor and an acceleration measurement sensor. The pressure measurement sensor is used to collect pressure data of the first compartment; the acceleration measurement sensor is used to collect acceleration data of the first vehicle.

[0098] In some embodiments, the second processor 131 is used to obtain identity information, the first data message includes the identity information, and when it is determined that the data acquisition terminal 130 has established a communication connection with the target communication base station, the first data message is sent to the fourth communication module 132, and the identity information is used to indicate the data receiving terminal that receives the first data message;

[0099] The fourth communication module 132 is used to send the identity information and the first data message to the target communication base station, so that the target communication base station sends the first data message to the data receiving terminal indicated by the identity information.

[0100] In some embodiments, the data acquisition terminal 130 further includes a sixth communication module 135, which is used to receive an information editing instruction from the information writing device and send the information editing instruction to the second processor 131; the second processor 131 is also used to edit at least one of the stored vehicle identification information, identity information, preset acceleration threshold, first pressure threshold or second pressure threshold in response to the information editing instruction. The sixth communication module 135 can be a built-in communication module of the second processor.

[0101] It can be understood that, in order to facilitate the fourth communication module to the sixth communication module to receive or send data, as shown in FIG. Figure 4 As shown, the data collection terminal 130 also includes a third antenna to a fifth antenna connected to the fourth communication module to the sixth communication module respectively.

[0102] In some embodiments, the data acquisition terminal further includes a power supply module for supplying power to the data acquisition terminal.

[0103] In applications, for example, Figure 5 As shown, the pressure measuring sensor (i.e. Figure 5 The brake cylinder pressure measurement module in the Figure 5 The acceleration measurement module in the embodiment of the present invention) are connected to the second processor 131 (i.e. Figure 5 The fourth communication module 132 may be a 4G or 5G communication module, which communicates with the second processor 131 through a serial communication bus, obtains data (including the first data message) from the second processor 131 and sends it to the target communication base station, or sends the data received from the target communication base station to the second processor 131. The fifth communication module 133 may be a LoRa communication module, which communicates with the second processor 131 through a serial communication bus, obtains data (including the first data message) from the second processor 131 and transmits it on an air interface channel, or sends the data received on the air interface channel to the second processor 131. The sixth communication module 135 may be a Bluetooth communication module built into the second processor 131, that is, Figure 5 The Bluetooth firmware built into the microprocessor has the function of Bluetooth communication with the information writing device after being configured with the fifth antenna.

[0104] Optionally, the acceleration measurement sensor can be composed of an IIS2DH chip and its peripheral devices, and has the characteristics of small size, low power consumption and high precision. The fifth communication module 133 and the second communication module 112 can both be composed of an E22-400T22S chip and its peripheral devices. The fourth communication module 132 and the first communication module 111 can both adopt an RG200U-CN communication module. The first processor 113 and the second processor 131 can both adopt an N32WB452 low-power microcontroller. The third antenna and the first antenna can both be composed of a combination of four 5G-specific patch ceramic antennas, the fourth antenna and the second antenna can both adopt a 470MHz frequency band patch ceramic antenna, and the sixth antenna can adopt a 2.4GHz frequency band patch ceramic antenna.

[0105] The train data transmission method of an embodiment of the present application is described in detail below. Figure 6 is a flow chart of a method for transmitting train data in an embodiment of the present application. The method can be performed by Figure 1 The data receiving terminal in the embodiment shown executes, for example Figure 6 As shown, the method comprises the following steps:

[0106] Step S101, obtaining multiple vehicle identification information of the target train stored in the data receiving terminal.

[0107] The data receiving terminal establishes a communication connection with the locomotive control terminal, the locomotive control terminal is used to control the travel of the target train, and the target train is equipped with the data receiving terminal. Each vehicle identification information indicates a carriage in the target train. The data receiving terminal can obtain multiple vehicle identification information of the target train pre-stored through its own first processor.

[0108] It can be understood that the vehicle identification information can be the car number of the target vehicle, and multiple vehicle identification information can be stored in the data receiving terminal in the form of a table. For example, multiple vehicle identification information can be combined into a vehicle number table for storage.

[0109] Step S102: when the first data message is received, searching for the first vehicle identification information among the plurality of vehicle identification information.

[0110] The first data message includes the first vehicle identification information and the running status data of the first carriage, and the running status data is used to indicate the driving condition of the first carriage. The first data message is a message sent by the data acquisition terminal to the data receiving terminal, and the running status data includes at least one of the pressure data or the acceleration data of the first carriage, the pressure data indicates the pressure in the brake cylinder in the first carriage, and the acceleration data indicates the driving stability of the first carriage.

[0111] When the data receiving terminal monitors that it has received data in a specific format (for example, a message of a fixed length, a message containing preset characters, or the type indicated by the type field in the message is operating status data, etc.), it can determine that the first data message has been received, or, when it monitors that the first processor has received data sent by the first communication module or the second communication module, it can determine that the first data message has been received.

[0112] The data receiving terminal can retrieve the first vehicle identification information from the multiple vehicle identification information through the first processor. If the first vehicle identification information is retrieved through the first processor, the data receiving terminal can determine that the first vehicle identification information is found from the multiple vehicle identification information. Otherwise, the first vehicle identification information is not found from the multiple vehicle identification information. The specific retrieval process is not specifically limited in the embodiment of the present application. For example, the retrieval can be performed through a string matching algorithm or a pruning algorithm.

[0113] It is understandable that when the first vehicle identification information is found out from the multiple vehicle identification information, it means that the first car is a car in the target train, and the first data message should be sent to the locomotive control terminal that can control the travel of the target train in a timely manner. Otherwise, it means that the first car is not a car in the target train, and the first data message reflecting its travel status does not need to be sent to the locomotive control terminal.

[0114] Step S103, when the first vehicle identification information is found from multiple vehicle identification information, the first data message is sent to the locomotive control terminal, and the locomotive control terminal is used to determine the operating status of the first car based on the operating status data to control the travel of the target train according to the operating status of the first car.

[0115] The data receiving terminal may send the first data message to the locomotive control terminal via wired communication, such as serial communication, or may send the first data message to the locomotive control terminal via wireless communication, such as 4G or 5G communication or long-distance radio communication.

[0116] In one example, the data receiving terminal is connected to the locomotive control terminal via a dedicated cable, such as an RS-485 cable. The data receiving terminal sends the first data message to its own third communication module through the first processor, so that the third communication module sends the first data message to the locomotive control terminal via the dedicated cable.

[0117] It should be noted that the running status data includes at least one of pressure data or acceleration data, the pressure data indicates the pressure in the brake cylinder in the first car, and the acceleration data indicates the running stability of the first car. The brake cylinder is the action component at the end of the brake of each car, and the pressure in the cylinder can reflect the working state and performance of the brake, thereby reflecting the safety of the train operation. In this way, the locomotive control system can timely determine the safety and stability of the target train during operation based on the analysis of each data in the running status data, so as to take emergency measures in time when it is determined that the target train has a sudden unstable event or a brake failure, such as speed reduction or emergency braking, to control the travel of the target train, thereby avoiding safety accidents.

[0118] In the case that the first vehicle identification information is not found from the multiple vehicle identification information, the data receiving terminal will delete the first data message from the received data messages, and the deleted data message will not be sent.

[0119] In order to improve the reliability of the data message received by the locomotive control terminal, in some embodiments, the method further includes, when the data receiving terminal detects that the first data message fails to be sent, resending the first data message to the locomotive control terminal. Resending the data message when the first data message fails to be sent can ensure that the locomotive control terminal receives the complete data message as much as possible, which facilitates the locomotive control terminal to determine the operating status of the first car.

[0120] In one example, when the locomotive control terminal receives the first data message, it will feedback information that the first data message has been received to the data receiving terminal. When the data receiving terminal receives the feedback within a preset time period, for example, 1s (seconds) or 0.5s, it is determined that the first data message is sent successfully. Otherwise, it is determined that the first data message fails to be sent.

[0121] In the embodiment of the present application, the data receiving terminal installed in the target train can receive the data message including the motion status data in real time, so that when the vehicle identification information in the data message is in the multiple vehicle identification information existing in the target train, the data message is promptly sent to the locomotive control terminal that establishes a communication connection with itself, so that the locomotive control terminal can timely analyze the running status of the carriage based on the running status of the carriage indicated by the running status data, so as to timely control the target train, for example, the running of the freight train, thereby improving the locomotive control accuracy, train operation safety and operation quality. In addition, there is no need to transmit the running status data after the target train arrives at the designated location, so as to realize the real-time transmission of the running status data and ensure the real-time nature of the running status data received by the locomotive control terminal. On the basis of not having to establish an additional server or install an additional reading device at the 5T detection station, the locomotive control terminal can obtain the running status data of the carriage in the target train in a timely manner, reducing the hardware complexity of the transmission of the running status data.

[0122] Figure 7 is a flow chart of another method for transmitting train data in an embodiment of the present application. The method can be performed by Figure 1 The data acquisition terminal in the embodiment shown executes, for example Figure 7 As shown, the method comprises the following steps:

[0123] Step S201, obtaining the operating status data of the first compartment and the first vehicle identification information.

[0124] The running state data includes at least one of pressure data or acceleration data, the pressure data indicates the pressure in the brake cylinder in the first compartment, and the acceleration data indicates the running stability of the first compartment. A data acquisition terminal is installed in the first compartment, and the data acquisition terminal can read the first vehicle identification information stored in itself through its second processor, and collect the running state data of the first compartment through its own data acquisition module.

[0125] It should be noted that the acceleration data includes a first acceleration, a second acceleration and a third acceleration. The first acceleration is the acceleration of the first car perpendicular to the ground, the second acceleration is the acceleration of the first car along the track, and the third acceleration is the acceleration of the first car on the horizontal plane perpendicular to the track.

[0126] It is understandable that if the first carriage experiences an unstable event such as derailment or tilting, the acceleration data of the first carriage will inevitably exceed the normal range. Therefore, the stability of the first carriage during operation can be detected through the acceleration data of the first carriage.

[0127] In one example, the data acquisition terminal may utilize the pressure measurement sensor and the acceleration sensor in the data acquisition module to respectively acquire the pressure data and the acceleration data of the first compartment, and the pressure data and the acceleration data are used as the operation status data.

[0128] In one example, the data acquisition module may further include a humidity sensor, a wind speed sensor, a lateral displacement sensor, and a wheel-rail force sensor. The data acquisition terminal may also use the humidity sensor to collect the humidity of the track where the first carriage is located, use the wind speed sensor to collect the wind speed outside the first carriage, use the lateral displacement sensor to collect the lateral displacement of the first carriage, and use the force sensor to collect the wheel-rail force between the track where the first carriage is located and the first carriage. At least one of the humidity, wind speed, lateral displacement, or wheel-rail force and the pressure data and / or acceleration data constitute the operating status data.

[0129] Step S202: When the data acquisition terminal is in the pressure data sending window period and / or the acceleration data is abnormal, a first data message is generated based on the operating status data and the first vehicle identification information.

[0130] The data acquisition terminal uses the second processor to analyze whether it is in the pressure data sending window period and whether the acceleration data is abnormal based on the collected operating status data. When the data acquisition terminal determines that it is in the pressure data sending window period or the acceleration data is abnormal, the first vehicle identification information and the operating status data are merged into a data string in a specific format. The merged data string is the first data message.

[0131] In one example, the data collection terminal also integrates the collection time of each data in the running status data and the identity information of the data receiving terminal in the train where the first car is located into the above data string. The identity information can be the address information or unique identification code of the data receiving terminal and other information that can indicate the data receiving terminal.

[0132] In one example, when the data acquisition terminal determines that it is in the pressure data sending window period, it merges the pressure data, the first vehicle identification information and the collection time of the pressure data into a data string in a specific format to obtain a first data message.

[0133] In one example, when the data acquisition terminal determines that the acceleration is abnormal, the acceleration data, the first vehicle identification information, and the acquisition time of the acceleration data are merged into a data string of a specific format to obtain a first data message. It is understandable that when the motion data includes pressure data and acceleration data, the data acquisition terminal will merge the two together into the first data message.

[0134] Step S203: Send the first data message to the data receiving terminal, which is used to execute the following steps: Figure 6 Any train data transmission method described in the illustrated embodiments.

[0135] The data acquisition terminal sends the first data message outward through its own fourth communication module or fifth communication module, so that the data receiving terminal will receive the first data message. When the multiple vehicle identification information of the target train successfully matches the first vehicle identification information, the data receiving terminal will send the first data message to the locomotive control system to control the travel of the target train according to the operating status of the first car.

[0136] In the embodiment of the present application, the operation status data of the first car can be obtained in real time through the data acquisition terminal, and when the data acquisition terminal is in the pressure data sending window period or the acceleration data is abnormal, a first data message is generated based on the first vehicle identification information and the collected operation status data, and the first data message is sent to the data receiving terminal in a timely manner so that the data receiving terminal can promptly determine whether to forward the first data message. The data receiving terminal can receive data messages with multi-dimensional information, avoid the data receiving terminal receiving scattered data and forwarding it, reduce the workload of the data receiving terminal, and realize the timely transmission of the operation status data, ensuring the efficiency and reliability of data transmission. In addition, the first data message generated by the data acquisition terminal can be sent directly to the locomotive control system through the forwarding of the data receiving terminal on the train, without the need for a ground data forwarding server or a reading device, which can reduce the complexity of the system.

[0137] Figure 8 is a schematic diagram of a process of sending a first data message by a data acquisition terminal provided in an embodiment of the present application. Figure 7 An example of step S203 in Figure 8 As shown, the method may include steps S301 to S302:

[0138] Step S301: When a data acquisition terminal establishes a communication connection with a target communication base station, a first data message is sent to a data receiving terminal through a first communication method.

[0139] The first communication mode may be mobile communication, for example, 4G communication or 5G communication, and the target communication base station is a 5G communication base station or a 4G communication base station. The data acquisition terminal generally detects the network connection status of its first communication module, and when it determines that the network connection status is connected, it determines that it has established a communication connection with the target communication base station. At this time, the data acquisition terminal sends the first data message to the first communication module so that the first communication module sends the first data message to the target communication base station, so that the target communication base station forwards the first data message to the data receiving terminal.

[0140] In some embodiments, the first data message further includes identity information of a data receiving terminal, and sending the first data message to the data receiving terminal through the first communication method includes:

[0141] The first data message is sent to a target communication base station, and the target communication base station is used to send the first data message to a data receiving terminal based on the identity information.

[0142] The data collection terminal will add the identity information of the data receiving terminal in the train where the first carriage is located in the first data message to prompt the target communication base station to receive the data receiving terminal of the first data message. The above method can ensure that when the first data message is wirelessly transmitted over a long distance through the target communication base station, the first data message is sent to the correct data receiving terminal, thereby improving communication reliability.

[0143] Step S302: When no communication connection is established between the data acquisition terminal and the target communication base station, the first data message is sent to the data receiving terminal through the second communication mode.

[0144] The second communication mode may be LoRa communication. When the data acquisition terminal determines that the network connection state of the first communication module is not connected, it determines that it has not established a communication connection with the target communication base station, and sends the first data message to its own second communication module, so that the second communication module sends the first data message to other data acquisition terminals connected to itself, so that other data acquisition terminals can forward the received first data message to the data receiving terminal. Alternatively, when the data acquisition terminal establishes LoRa communication with the data receiving terminal, the data acquisition terminal can also send the first data message to the data receiving terminal through its own second communication module.

[0145] In some embodiments, the data acquisition terminal establishes a chain communication connection with a first data acquisition terminal and a second data acquisition terminal in the train to which the first carriage belongs, and the method further includes: when the second data message is received, sending the second data message to the first data acquisition terminal.

[0146] Among them, the second data message is a data message sent by the second data acquisition terminal in the train to the data acquisition terminal through the second communication method, and the first data acquisition terminal is used to send the second data message and the first data message to the data receiving terminal. When the data acquisition terminal receives a data message sent by any other data acquisition terminal (second data acquisition terminal) other than the first data acquisition terminal and itself through the second communication method, that is, the second data message, if the data acquisition terminal determines that it has established a communication connection with the target communication base station, the data acquisition terminal will send the first data message and the second data message to the data receiving terminal based on the first communication method.

[0147] If the data acquisition terminal determines that it has not established a communication connection with the target communication base station, the data acquisition terminal will send the first data message and the second data message to the first data acquisition terminal based on the second communication method, so that the first data acquisition terminal can send the received data message to the data receiving terminal. In this way, the data acquisition terminal can send the data message generated by other data acquisition terminals to the data receiving terminal, which can ensure that the data receiving terminal has multiple opportunities to receive the data sent by the data acquisition terminal in the train where the first car is located, thereby improving the success rate of data transmission.

[0148] In one example, the second communication mode is a chained LoRa communication with relays from one level to another.

[0149] In the above method, the data acquisition terminal has two communication modes. When no communication connection is established with the target communication base station, the second communication mode can be switched in time to send data to the data receiving terminal, thereby improving the reliability of communication.

[0150] Fig. 9 This is a flow chart of judging whether a data acquisition terminal is in a pressure data transmission window period and acceleration data is abnormal, provided in an embodiment of the present application. Figure 7 An example of step S202 in Fig. 9 As shown, the method may include steps S401 to S404:

[0151] Step S401: When the first pressure threshold and the second pressure threshold are both smaller than the pressure data, it is determined that the data acquisition terminal is in the pressure data sending window period.

[0152] The first pressure threshold indicates that the first carriage starts braking, and the second pressure threshold indicates that the first carriage ends braking. The first pressure threshold may be greater than the second pressure threshold. In one example, the first pressure threshold and the second pressure threshold may be set based on the pressure in the brake cylinder of the first carriage during historical driving, or may be written into the data acquisition terminal through an information writing device.

[0153] Step S402: when the pressure data is less than the second pressure threshold, determine that the data acquisition terminal is not in the pressure data sending window period.

[0154] Step S403: when the acceleration data is greater than a preset acceleration threshold, determine that the acceleration data is abnormal.

[0155] In one example, the preset acceleration threshold may be set based on the acceleration of the first carriage when an unstable event (derailment and / or tilt, etc.) occurs during historical travel, or the preset acceleration threshold may be written into the data acquisition terminal through an information writing device.

[0156] It should be noted that, when the acceleration data includes the first acceleration, the second acceleration and the third acceleration, the preset acceleration threshold includes the first acceleration threshold, the second acceleration threshold and the third acceleration threshold corresponding to the first acceleration, the second acceleration and the third acceleration, respectively. When at least one of the first acceleration, the second acceleration or the third acceleration is greater than the acceleration threshold corresponding to itself, the acceleration data is determined to be abnormal.

[0157] Step S404: when the data acquisition terminal is in the pressure data sending window period or the acceleration data is abnormal, a first data message is generated based on the operating status data and the first vehicle identification information.

[0158] In the above method, by comparing the pressure data with the first pressure threshold and the second pressure threshold, and by comparing the acceleration data with the preset acceleration threshold, it is possible to quickly determine whether the data acquisition terminal is in the pressure data sending window period or whether the acceleration data is abnormal, thereby quickly determining whether to generate a first data message.

[0159] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0160] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0161] An embodiment of the present application provides a computer program product. When the computer program product runs on a processor, the processor can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0162] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the camera / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

[0163] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0164] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0165] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0166] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0167] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for transmitting train data, characterized in that: Applied to a data receiving terminal, the data receiving terminal establishes a communication connection with a locomotive control terminal, the locomotive control terminal is used to control the travel of a target train, the target train is equipped with the data receiving terminal, the method comprises: Acquire multiple vehicle identification information of the target train stored in the data receiving terminal, each of the vehicle identification information indicates a carriage in the target train; When receiving a first data message, searching for the first vehicle identification information among the plurality of vehicle identification information, the first data message including the first vehicle identification information and the running status data of the first carriage, the running status data being used to indicate the running condition of the first carriage; When the first vehicle identification information is found from multiple vehicle identification information, the first data message is sent to the locomotive control terminal, and the locomotive control terminal is used to determine the operating status of the first car based on the operating status data, so as to control the travel of the target train according to the operating status of the first car.

2. The method according to claim 1, characterized in that The method further comprises: When it is detected that the first data message fails to be sent, the first data message is resent to the locomotive control terminal.

3. A method for transmitting train data, characterized in that: Applied to a data acquisition terminal, the data acquisition terminal establishes a communication connection with a data receiving terminal, and the method comprises: Acquire running status data of a first carriage and first vehicle identification information, the running status data including at least one of pressure data or acceleration data, the pressure data indicating the pressure in a brake cylinder in the first carriage, the acceleration data indicating the smoothness of the running of the first carriage, the first carriage being equipped with the data acquisition terminal; When the data acquisition terminal is in a pressure data sending window period or the acceleration data is abnormal, generating a first data message based on the running status data and the first vehicle identification information; The first data message is sent to the data receiving terminal, and the data receiving terminal is used to execute the method according to claim 1 or 2.

4. The method according to claim 3, characterized in that The sending the first data message to the data receiving terminal includes: When the data acquisition terminal establishes a communication connection with a target communication base station, the first data message is sent to the data receiving terminal through a first communication mode, and the target communication base station is a 5G communication base station or a 4G communication base station; When the data acquisition terminal has not established a communication connection with the target communication base station, the first data message is sent to the data receiving terminal through a second communication method.

5. The method according to claim 4, characterized in that The first data message also includes identity information of the data receiving terminal, and sending the first data message to the data receiving terminal through the first communication method includes: The first data message is sent to the target communication base station, and the target communication base station is used to send the first data message to the data receiving terminal based on the identity information.

6. The method according to claim 3, characterized in that Before generating the first data message based on the running status data and the first vehicle identification information, the method further includes: When the first pressure threshold and the second pressure threshold are both smaller than the pressure data, it is determined that the data acquisition terminal is in the pressure data sending window period, the first pressure threshold indicates that the first carriage starts braking, and the second pressure threshold indicates that the first carriage ends braking; When the pressure data is less than the second pressure threshold, determining a window period during which the data acquisition terminal does not send pressure data; When the acceleration data is greater than a preset acceleration threshold, it is determined that the acceleration data is abnormal.

7. The method according to any one of claims 3 to 6, characterized in that The data acquisition terminal establishes a chain communication connection with a first data acquisition terminal and a second data acquisition terminal in a train to which the first carriage belongs, respectively, and the method further includes: When a second data message is received, the second data message and the first data message are sent to the first data acquisition terminal, the second data message is a data message sent by the second data acquisition terminal to the data acquisition terminal via a second communication method, and the first data acquisition terminal is used to send the second data message and the first data message to the data receiving terminal.

8. A train data transmission system, characterized in that: The system comprises: A data acquisition terminal is used to obtain a first data message of a first carriage, wherein the first data message includes running status data of the first carriage and first vehicle identification information, wherein the running status data indicates the driving condition of the first carriage; and send the first data message to a data receiving terminal, wherein the first carriage is equipped with the data acquisition terminal; The data receiving terminal is used to obtain a plurality of vehicle identification information of the target train stored in the data receiving terminal, each of which indicates a carriage in the target train; when the first data message is received, the first vehicle identification information is searched in the plurality of vehicle identification information; when the first vehicle identification information is found in the plurality of vehicle identification information, the first data message is sent to the locomotive control terminal, and the target train is equipped with the data receiving terminal; The locomotive control terminal is used to determine the operating status of the first carriage based on the operating status data, so as to control the travel of the target train according to the operating status of the first carriage.

9. The system according to claim 8, characterized in that The data receiving terminal comprises: A first communication module, used for receiving a data message sent by a data acquisition terminal through a first communication mode, and sending the received data message to a first processor; A second communication module, used for receiving a data message sent by a data acquisition terminal through a second communication mode, and sending the received data message to the first processor; The first processor is configured to send the first data message to the third communication module when the first vehicle identification information is found from the plurality of vehicle identification information; The third communication module is used to send the first data message to the locomotive control terminal through a third communication method.

10. The system according to claim 9, characterized in that The data acquisition terminal comprises: A second processor is used to detect the communication connection result between the data acquisition terminal and the target communication base station; a fourth communication module, configured to send the first data message to the first communication module through a first communication mode when the second processor determines that the data acquisition terminal has established a communication connection with the target communication base station; A fifth communication module is used to send the first data message to the second communication module through a second communication method when the second processor determines that the data acquisition terminal has not established a communication connection with the target communication base station.

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