Train signal transmission processing method and system and rail vehicle

Abstract

The invention provides a train signal transmission processing method and system and a railway vehicle, the method is applied to the railway vehicle, each roof corner of the railway vehicle is provided with a directional antenna, and the body length of the railway vehicle is greater than a length threshold; the method comprises the steps that under the condition that the railway vehicle needs to receive transmission signals, the received signal strength values of directional antennas arranged at the roof angles are detected, and the transmission signals need to be transmitted outwards by the railway vehicle in a relay mode; based on the received signal strength value, a signal receiving directional antenna is determined from directional antennas arranged at the roof angles, and the received signal strength value of the signal receiving directional antenna is larger than a signal strength threshold value; and calling the signal receiving directional antenna to receive the transmission signal. Signal transmission can be efficiently and accurately carried out, and the problem that signal transmission is blocked due to the fact that a rubber wheel train body is too large is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of signal transmission processing, and particularly to a train signal transmission processing method, system and rail vehicle. Background Art

[0002] In the current intelligent transportation system, vehicle wireless communication technology (Vehicle to Everything, also known as V2X) plays a crucial role. It allows real-time data exchange between vehicles and between vehicles and infrastructure, thus greatly improving road safety, traffic efficiency and driving experience.

[0003] However, with the coexistence of various types of vehicles on the road, the application of V2X communication technology also faces many challenges. In particular, as a large transportation vehicle, the rubber-tyred train is significantly larger in size than ordinary small vehicles. This significant difference in size causes the rubber-tyred train to easily cause serious obstruction to the V2X transmission signals between surrounding small vehicles during driving. This signal obstruction phenomenon not only reduces the reliability of V2X transmission signal communication, but also may pose a potential threat to road safety.

[0004] Therefore, finding a train signal transmission processing method for efficient and accurate signal transmission has become a current research hotspot. Summary of the Invention

[0005] The present invention provides a train signal transmission processing method, system and rail vehicle, which realizes efficient and accurate signal transmission and overcomes the problem that the rubber-tyred train obstructs signal transmission due to its large body size.

[0006] The present invention provides a train signal transmission processing method, which is applied to a rail vehicle. Directional antennas are arranged at the top corners of the rail vehicle, and the body length of the rail vehicle is greater than a length threshold; the method includes: when the rail vehicle needs to receive a transmission signal, detecting the received signal strength values of the directional antennas arranged at each of the top corners, wherein the transmission signal needs to be relayed and transmitted outward by the rail vehicle; based on the received signal strength values, determining a signal receiving directional antenna among the directional antennas arranged at each of the top corners, wherein the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold; and calling the signal receiving directional antenna to receive the transmission signal.

[0007] A train signal transmission and processing method provided by the present invention, the signal receiving directional antenna includes a preferred signal receiving directional antenna, wherein the preferred signal receiving directional antenna is the signal receiving directional antenna with the maximum received signal strength value among the signal receiving directional antennas; the calling of the signal receiving directional antenna to receive the transmission signal specifically includes: calling the preferred signal receiving directional antenna to receive the transmission signal.

[0008] A train signal transmission and processing method provided by the present invention, the method further includes: when it is detected that there is a potential collision risk on one side of the rail vehicle corresponding to the roof angle of the rail vehicle, calling the directional antenna arranged at the roof angle corresponding to the side with the potential collision risk to receive the transmission signal.

[0009] A train signal transmission and processing method provided by the present invention, the potential collision risk on one side of the rail vehicle corresponding to the roof angle of the rail vehicle is determined by the following method: based on the position information of the rail vehicle included in the transmission signal, determining the collision time between the rail vehicle and other vehicles; when the collision time is less than the time threshold, it is determined that there is a potential collision risk on one side of the rail vehicle corresponding to the roof angle.

[0010] A train signal transmission and processing method provided by the present invention, the position information of the rail vehicle included in the transmission signal is set by the following method: obtaining the body size information of the rail vehicle, the geographical location information of the rail vehicle, and the relative position information of the geographical location information relative to the body size of the rail vehicle; based on the body size information of the rail vehicle, the geographical location information of the rail vehicle, and the relative position information of the geographical location information relative to the body size of the rail vehicle, determining the position information of the rail vehicle in the transmission signal.

[0011] A train signal transmission and processing method provided by the present invention, after the calling of the signal receiving directional antenna to receive the transmission signal, the method further includes: based on the received signal strength value, determining a signal sending directional antenna among the directional antennas arranged at each roof angle, wherein the received signal strength value of the signal sending directional antenna is less than or equal to the signal strength threshold; through directional relay, relaying the transmission signal received by the signal receiving directional antenna to the signal sending directional antenna; based on the signal sending directional antenna, transmitting the transmission signal outward.

[0012] A train signal transmission and processing method provided by the present invention, the signal transmission directional antenna includes a preferred signal transmission directional antenna, wherein the preferred signal transmission directional antenna is the signal transmission directional antenna with the minimum received signal strength value among the signal transmission directional antennas; based on the signal transmission directional antenna, transmitting the transmission signal outward specifically includes: transmitting the transmission signal outward based on the preferred signal transmission directional antenna.

[0013] A train signal transmission and processing method provided by the present invention, the rail vehicle at least includes a rubber-tired train.

[0014] The present invention also provides a train signal transmission and processing system, the system is applied to a rail vehicle, directional antennas are arranged at the respective roof corners of the rail vehicle, and the body length of the rail vehicle is greater than a length threshold; the system includes: a detection module, configured to detect the received signal strength values of the directional antennas arranged at the respective roof corners when the rail vehicle needs to receive a transmission signal, wherein the transmission signal needs to be relayed and transmitted outward by the rail vehicle; a determination module, configured to determine a signal reception directional antenna among the directional antennas arranged at the respective roof corners based on the received signal strength values, wherein the received signal strength value of the signal reception directional antenna is greater than a signal strength threshold; a processing module, configured to call the signal reception directional antenna to receive the transmission signal.

[0015] The present invention also provides a rail vehicle, the rail vehicle includes: a vehicle body, wherein directional antennas are arranged at the respective roof corners of the vehicle body, and a processor, wherein the processor is configured to execute any one of the train signal transmission and processing methods.

[0016] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, it implements any one of the train signal transmission and processing methods as described above.

[0017] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements any one of the train signal transmission and processing methods as described above.

[0018] The present invention also provides a computer program product, including a computer program, and when the computer program is executed by a processor, it implements any one of the train signal transmission and processing methods as described above.

[0019] The train signal transmission processing method, system and rail vehicle provided by the present invention are applied to a rail vehicle. Directional antennas are arranged at the top corners of each car body of the rail vehicle, and the body length of the rail vehicle is greater than a length threshold value. The method includes: when the rail vehicle needs to receive a transmission signal, detecting the received signal strength values of the directional antennas arranged at the top corners of each car body, where the transmission signal needs to be relayed and transmitted outward by the rail vehicle; based on the received signal strength values, determining a signal receiving directional antenna among the directional antennas arranged at the top corners of each car body, where the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold value; and invoking the signal receiving directional antenna to receive the transmission signal. It realizes efficient and accurate signal transmission and overcomes the problem that the rubber-tired train blocks the signal transmission due to its too large body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is one of the flowcharts of the train signal transmission processing method provided by the present invention.

[0022] Figure 2 It is the flowchart of determining that there is a potential collision risk on one side of the rail vehicle corresponding to the direction of the top corner of the rail vehicle body provided by the present invention.

[0023] Figure 3 It is the flowchart of setting the position information of the rail vehicle in the transmission signal provided by the present invention.

[0024] Figure 4 It is the second flowchart of the train signal transmission processing method provided by the present invention.

[0025] Figure 5 It is the structural schematic diagram of the train signal transmission processing system provided by the present invention.

[0026] Figure 6 It is the structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will, in conjunction with the accompanying drawings of the present invention, clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts fall within the scope of protection of the present invention.

[0028] In modern railway transportation systems, the reliability and stability of train signal transmission are of crucial importance. For rail vehicles with a relatively long body length, such as high-speed trains or certain freight trains, due to the long body, traditional omnidirectional antennas may not be able to meet the requirements for signal reception intensity and stability. Especially in cases where signal relay transmission is required, how to ensure that the train can accurately and stably receive signals has become an urgent problem to be solved.

[0029] To solve the above problems, the present invention proposes a train signal transmission processing method, which is particularly applicable to rail vehicles with a body length greater than a length threshold. Directional antennas are provided at the respective roof corners of these rail vehicles to improve the pertinence and stability of signal reception.

[0030] The train signal transmission processing method provided by the present invention places directional antennas, such as V2X antennas, at the four corners of the roof respectively, and solves the problem of signal occlusion, such as V2X signal transmission, caused by the overly long body of the rubber-tired train through space diversity.

[0031] Figure 1 is one of the flow schematic diagrams of the train signal transmission processing method provided by the present invention.

[0032] The following will, in conjunction with Figure 1 describe the process of the train signal transmission processing method provided by the present invention.

[0033] In an exemplary embodiment of the present invention, the train signal transmission processing method can be applied to a rail vehicle, and directional antennas are provided at the respective roof corners of the rail vehicle, and the body length of the rail vehicle is greater than the length threshold. In other words, the scenario to which the present invention is applied is a rail vehicle with a relatively long body.

[0034] In another exemplary embodiment of the present invention, the rail vehicle can be a rubber-tired train.

[0035] In conjunction with Figure 1 it can be seen that the train signal transmission processing method may include steps 110 to 130, and each step will be introduced separately below.

[0036] In step 110, when the rail vehicle needs to receive a transmission signal, the received signal strength values of the directional antennas arranged at each roof corner are detected, wherein the transmission signal needs to be relayed and transmitted outward by the rail vehicle.

[0037] In one embodiment, when the rail vehicle needs to receive a transmission signal (which needs to be relayed and transmitted outward by the train), the received signal strength values of the directional antennas arranged at each roof corner can be detected, that is, the RSSI signal values are obtained. The purpose is to obtain the reception situation of each directional antenna for the current signal, providing a basis for determining the best receiving antenna subsequently, that is, the signal receiving directional antenna described below.

[0038] In another embodiment, the directional antennas arranged at each of the roof corners can be four directional antennas arranged at four roof corners.

[0039] In step 120, based on the received signal strength values, a signal receiving directional antenna is determined among the directional antennas arranged at each roof corner, wherein the received signal strength value of the signal receiving directional antenna is greater than the signal strength threshold.

[0040] In step 130, the signal receiving directional antenna is called to receive the transmission signal.

[0041] In another embodiment, based on the obtained received signal strength values, a signal receiving directional antenna can be determined among the four directional antennas arranged at four roof corners. The signal receiving directional antenna can refer to an antenna whose received signal strength value is greater than a preset signal strength threshold. By comparing the received signal strength values of each directional antenna with the signal strength threshold, an antenna with the best receiving effect can be determined as the signal receiving directional antenna.

[0042] Furthermore, the determined signal receiving directional antenna is called to receive the signal that needs to be relayed and transmitted. Since this antenna has the best receiving effect, it can ensure that the train can receive the signal accurately and stably, thereby improving the reliability and stability of signal transmission.

[0043] Through this embodiment, the rail vehicle can intelligently select the best directional antenna for signal reception according to its own body length and signal reception requirements. This method not only improves the pertinence and stability of signal reception, but also reduces the loss and interference during signal transmission, thereby ensuring the reliability and stability of train signal transmission.

[0044] In addition, since this method is particularly applicable to rail vehicles with a longer body length, it has wide applicability and promotion value in practical applications. By continuously optimizing and improving this method, the operation efficiency and safety of the railway transportation system can be further improved.

[0045] The train signal transmission and processing method provided by the present invention is applied to rail vehicles. Directional antennas are provided at each roof corner of the rail vehicle, and the body length of the rail vehicle is greater than a length threshold; the method includes: when the rail vehicle needs to receive a transmission signal, detecting the received signal strength values of the directional antennas provided at each roof corner, where the transmission signal needs to be relayed and transmitted outward by the rail vehicle; based on the received signal strength values, determining a signal receiving directional antenna among the directional antennas provided at each roof corner, where the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold; and invoking the signal receiving directional antenna to receive the transmission signal. It realizes efficient and accurate signal transmission and overcomes the problem that the rubber-tired train blocks the signal transmission due to its too large body.

[0046] In another exemplary embodiment of the present invention, the signal receiving directional antenna may include a preferred signal receiving directional antenna, where the preferred signal receiving directional antenna may be the signal receiving directional antenna with the maximum received signal strength value among the signal receiving directional antennas; continuing with Figure 1 the embodiment described above as an example, where invoking the signal receiving directional antenna to receive the transmission signal (corresponding to step 130) may be implemented in the following manner: Invoking the preferred signal receiving directional antenna to receive the transmission signal.

[0047] In one embodiment, the received signal strength values of the antennas may be further compared among the determined signal receiving directional antennas, and the antenna with the maximum received signal strength value may be selected as the preferred signal receiving directional antenna. The purpose is to ensure that the antenna with the best receiving effect is selected to receive the signal.

[0048] Further, invoking the determined preferred signal receiving directional antenna to receive the signal that needs to be relayed and transmitted. Since this antenna has the best receiving effect among all the signal receiving directional antennas, the quality and stability of signal transmission can be further improved.

[0049] Through this embodiment, the rail vehicle can intelligently select the antenna with the best receiving effect (i.e., the preferred signal receiving directional antenna) to receive the signal. This method not only improves the stability and reliability of signal reception, but also further enhances the quality of signal transmission.

[0050] In the railway transportation system, ensuring the safety of train operation is of utmost importance. Especially during the train operation, if a potential collision risk is detected, it becomes particularly important to receive and process signals in a timely and accurate manner. The following will introduce the process of introducing a detection mechanism for potential collision risks and dynamically adjusting the selection of signal receiving antennas according to the detection results in combination with the following embodiments.

[0051] In another exemplary embodiment of the present invention, continuing with the example described above Figure 1 The embodiment is used for illustration. The train signal transmission and processing method may further include the following steps: When it is detected that there is a potential collision risk on one side of the rail vehicle corresponding to the roof angle direction of the rail vehicle, the directional antenna set at the roof angle corresponding to the side with the potential collision risk is called to receive the transmission signal.

[0052] During the running of the train, it is possible to continuously detect whether there is a potential collision risk on one side of the rail vehicle corresponding to the roof angle direction of the rail vehicle. This can be achieved in various ways. For example, sensor devices such as radar, lidar (LiDAR), and cameras are used to monitor the surrounding environment, and analysis and judgment are made based on the monitoring data.

[0053] Furthermore, if a potential collision risk is detected, the directional antenna set at the roof angle corresponding to the side with the potential collision risk is immediately called to receive the signal that needs to be relayed. Thus, it can be ensured that in the case of a potential collision risk, the train can use the optimal antenna position to receive the signal, so as to make timely responses and processing. In this embodiment, the rail vehicle can dynamically adjust the selection of the signal receiving antenna when detecting a potential collision risk, ensuring the use of the optimal antenna position to receive the signal. This method not only improves the stability and reliability of signal reception but also further enhances the safety of train operation.

[0054] It can also be understood that the directional antenna set at the roof angle corresponding to the side with the potential collision risk is the directional antenna closest to the other vehicle, and its signal reception performance is the highest. Based on the directional antenna set at the roof angle corresponding to the side with the potential collision risk, receiving the transmission signal can ensure the integrity and efficiency of signal reception.

[0055] In another embodiment, it is also possible to give a relay forwarding strategy by comprehensively analyzing the message relevance of each area based on the relative position relationship between the other vehicle and itself and combining the relative driving directions. On the one hand, it reduces the signal attenuation problem caused by the occlusion of the rubber-tired train, and on the other hand, it avoids the message storm problem caused by omnidirectional broadcasting. The following will describe the process of forwarding messages or information by giving a relay forwarding strategy through comprehensively analyzing the message relevance of each area in combination with the relative driving directions: In one example, if another vehicle is at the front left and is moving in the opposite direction to the vehicle in parallel, then there is a potential collision risk for the vehicle behind, and the message is forwarded by the antenna at the rear left of the rubber-tired vehicle; if they are moving in the same direction and the speed of the other vehicle is faster than that of the vehicle, then the message is forwarded by the antenna at the front left; otherwise, if they are moving in the same direction and the speed of the other vehicle is slower than that of the vehicle, then the message is forwarded by the antenna at the rear left; if the other vehicle is at the front left and is approaching the vehicle in the vertical direction, then there is a potential collision risk for the vehicle at the front right, and the message is forwarded by the antenna at the front right of the rubber-tired vehicle; if the other vehicle is at the front left and is moving away from the vehicle in the vertical direction, then the received message is ignored.

[0056] In another example, if another vehicle is directly in front and its speed is slower than that of the vehicle, then the message is forwarded by the antennas at the front left and front right; if the speed of the other vehicle is faster than that of the vehicle, then the received message is ignored.

[0057] In another example, if another vehicle is at the front right and is moving in the opposite direction to the vehicle in parallel, then there is a potential collision risk for the vehicle behind, and the message is forwarded by the antenna at the rear right of the rubber-tired vehicle; if they are moving in the same direction and the speed of the other vehicle is faster than that of the vehicle, then the message is forwarded by the antenna at the front right; otherwise, if they are moving in the same direction and the speed of the other vehicle is slower than that of the vehicle, then the message is forwarded by the antenna at the rear right; if the other vehicle is at the front right and is approaching the vehicle in the vertical direction, then there is a potential collision risk for the vehicle at the front left, and the message is forwarded by the antenna at the front left of the rubber-tired vehicle; if the other vehicle is at the front right and is moving away from the vehicle in the vertical direction, then the received message is ignored.

[0058] In another example, if another vehicle is at the rear left and is moving in the opposite direction to the vehicle in parallel, then there is a potential collision risk for the vehicle behind, and the message is forwarded by the antenna at the rear left of the rubber-tired vehicle; if they are moving in the same direction and the speed of the other vehicle is faster than that of the vehicle, then the message is forwarded by the antenna at the front left; otherwise, if they are moving in the same direction and the speed of the other vehicle is slower than that of the vehicle, then the message is forwarded by the antenna at the rear left; if the other vehicle is at the rear left and is approaching the vehicle in the vertical direction, then there is a potential collision risk for the vehicle at the rear right, and the message is forwarded by the antenna at the rear right of the rubber-tired vehicle; if the other vehicle is at the rear left and is moving away from the vehicle in the vertical direction, then the received message is ignored.

[0059] In another example, if another vehicle is directly behind and its speed is faster than that of the vehicle, then the message is forwarded by the antennas at the rear left and rear right; if the speed of the other vehicle is slower than that of the vehicle, then the received message is ignored.

[0060] In another example, if another vehicle is at the rear right and moving in the opposite direction to the host vehicle in a parallel direction, there is a potential collision risk for the rear vehicle, and the message is relayed by the antenna at the rear right of the rubber-tired vehicle; if moving in the same direction and the speed of the other vehicle is faster than that of the host vehicle, the message is relayed by the antenna at the front right; otherwise, if moving in the same direction and the speed of the other vehicle is slower than that of the host vehicle, the message is relayed by the antenna at the rear right; if another vehicle is at the rear right and approaching the host vehicle in a perpendicular direction, there is a potential collision risk for the vehicle at the left rear, and the message is relayed by the antenna at the left rear of the rubber-tired vehicle; if another vehicle is at the rear right and moving away from the host vehicle in a perpendicular direction, the received message is ignored.

[0061] Figure 2 It is a schematic flow chart of determining the potential collision risk on one side of the rail vehicle corresponding to the roof angle of the rail vehicle provided by the present invention.

[0062] Next, in combination with Figure 2 the process of determining the potential collision risk on one side of the rail vehicle corresponding to the roof angle of the rail vehicle provided by the present invention will be described.

[0063] In an exemplary embodiment of the present invention, in combination with Figure 2 it can be seen that determining the potential collision risk on one side of the rail vehicle corresponding to the roof angle of the rail vehicle may include step 210 and step 220, and each step will be introduced separately below.

[0064] In step 210, based on the position information of the rail vehicle included in the transmission signal, the collision time between the rail vehicle and another vehicle is determined; In step 220, when the collision time is less than the time threshold, it is determined that there is a potential collision risk on one side of the rail vehicle corresponding to the roof angle of the rail vehicle.

[0065] In one embodiment, the collision time between the rail vehicle and another vehicle can be calculated based on the position information of the rail vehicle included in the transmission signal. The collision time refers to the time elapsed from the current moment to the moment when the two vehicles may collide. This step can be implemented by various algorithms, such as calculation based on relative speed and distance, etc.

[0066] Furthermore, the calculated collision time can be compared with a preset time threshold. If the collision time is less than the time threshold, it is determined that there is a potential collision risk on one side of the rail vehicle corresponding to the roof angle of the rail vehicle. The time threshold can be set according to the actual situation to ensure that the train has enough time to respond and handle when a potential collision risk occurs.

[0067] Figure 3 It is a schematic flow chart of setting the position information of the rail vehicle in the transmission signal provided by the present invention.

[0068] The following will be combined with Figure 3 to describe the process of setting the position information of the rail vehicle in the transmission signal.

[0069] In an exemplary embodiment of the present invention, combined with Figure 3 it can be known that setting the position information of the rail vehicle in the transmission signal may include step 310 and step 320. Each step will be introduced separately below.

[0070] In step 310, obtain the body size information of the rail vehicle, the geographical location information of the rail vehicle, and the relative position information of the geographical location information relative to the body size of the rail vehicle; In step 320, based on the body size information of the rail vehicle, the geographical location information of the rail vehicle, and the relative position information of the geographical location information relative to the body size of the rail vehicle, determine the position information of the rail vehicle in the transmission signal.

[0071] In the railway transportation system, especially for rail vehicles with a relatively long body length (such as rubber-tired trains), how to accurately represent their position information and provide a basis for other vehicles to calculate the collision conflict time is a key issue. Therefore, based on the previously proposed train signal transmission processing method, this embodiment introduces a method for determining the position information in the transmission signal based on the body size information, geographical location information, and relative position information of the rail vehicle.

[0072] In one embodiment, the body size information (such as length, width, height, etc.) and geographical location information (such as longitude, latitude, altitude, etc.) of the rail vehicle can be obtained through on-vehicle sensors or external data sources. These information are the basis for subsequently determining the position information in the transmission signal.

[0073] In another embodiment, the relative position information of the geographical location information relative to the body size of the rail vehicle can also be calculated according to the obtained geographical location information and body size information. For example, the offset of the geographical location of the vehicle head or tail relative to the vehicle center can be determined, etc.

[0074] Furthermore, based on the body size information of the rail vehicle determined above, the geographical location information of the rail vehicle, and the relative position information of the geographical location information relative to the body size of the rail vehicle, determine the position information of the rail vehicle in the transmission signal. These information not only include the absolute geographical location information of the vehicle, but also the relative position information relative to the body size. In this way, the position and size information of the rail vehicle can be accurately represented in the transmission signal.

[0075] In this embodiment, the position information of the rail vehicle in the transmission signal not only gives the geographical location information p of the rail vehicle, but also includes the body size of the rubber-tyred train and the relative position information of the geographical location information p in the size of the rubber-tyred train. It is equivalent to accurately characterizing the position of the rubber-tyred train with the body size and the position information relative to the body, which helps other vehicles calculate the moving trajectory of the rubber-tyred train more accurately, achieves the purpose of optimizing the TTC calculation, and improves the collision warning effect when the rubber-tyred train participates in the vehicle networking. It solves the problem that the body of the rubber-tyred train is too long to accurately represent its accurate position, resulting in inaccurate collision warning.

[0076] In another embodiment, when encapsulating the transmission signal, such as the BSM message, the size information of the rubber-tyred train can be filled. The left front corner coordinate of the rubber-tyred train is marked as (0, 0), its width w and length l are filled in the standard field of the BSM, and at the same time, the deviation of the body position information relative to the left front corner is filled in the extended field. w_offset represents the lateral deviation and l_offset represents the longitudinal deviation.

[0077] Figure 4 It is the second schematic flow chart of the train signal transmission and processing method provided by the present invention.

[0078] Next, it will be combined with Figure 4 to describe the process of another train signal transmission and processing method.

[0079] In an exemplary embodiment of the present invention, in combination with Figure 4 it can be known that after calling the signal receiving directional antenna to receive the transmission signal, the train signal transmission and processing method further includes steps 410 to 430. Each step will be introduced separately below: In step 410, based on the received signal strength value, the signal sending directional antenna is determined among the directional antennas arranged at each roof corner, where the received signal strength value of the signal sending directional antenna is less than or equal to the signal strength threshold; In step 420, through the directional relay, the transmission signal received by the signal receiving directional antenna is relayed to the signal sending directional antenna; In step 430, based on the signal sending directional antenna, the transmission signal is transmitted outward.

[0080] In one embodiment, after the signal receiving directional antenna receives the transmission signal, the system can continue to detect the received signal strength values of each directional antenna. At this time, the system searches for the directional antenna whose received signal strength value is less than or equal to the signal strength threshold and determines it as the signal sending directional antenna. Since the received signal strength of these antennas is weak, they may not be able to directly receive the transmission signals from other rail vehicles, but can be used as the sending end of the signal relay.

[0081] Furthermore, through the method of directional relaying, the transmission signal received by the signal receiving directional antenna is relayed to the signal sending directional antenna. Based on the signal sending directional antenna, the transmission signal is transmitted outward. Among them, these signals may include the position information, operating status, etc. of the rail vehicle, and are used for communication and interaction with other rail vehicles or signal sources. Through this embodiment, it can be ensured that the signal can be effectively transmitted and relayed between different antennas, improving the rational utilization of the directional antennas arranged at the corners of each car roof.

[0082] Through this embodiment, after receiving the transmission signal, the signal sending directional antenna can be determined according to the received signal strength value, and the signal is transmitted through directional relaying. This method not only improves the stability and reliability of signal transmission, but also optimizes the efficiency of signal relaying.

[0083] In another exemplary embodiment of the present invention, the signal sending directional antenna may include a preferred signal sending directional antenna, where the preferred signal sending directional antenna may be the signal sending directional antenna with the minimum received signal strength value among the signal sending directional antennas; Continuing with the example of the embodiment described above Figure 4 Taking the above-mentioned embodiment as an example for illustration, where transmitting the transmission signal outward based on the signal sending directional antenna (corresponding to step 430) can be implemented in the following manner: Transmit the transmission signal outward based on the preferred signal sending directional antenna.

[0084] In one embodiment, after receiving the transmission signal, the system can continue to detect the received signal strength values of each directional antenna, and find the directional antennas with received signal strength values less than or equal to the signal strength threshold as candidates for the signal sending directional antenna. Then, select the antenna with the minimum received signal strength value from these candidate antennas as the preferred signal sending directional antenna.

[0085] Furthermore, transmit the transmission signal outward based on the preferred signal sending directional antenna. In this embodiment, transmitting the transmission signal outward based on the signal sending directional antenna with the minimum signal strength value as the preferred signal sending directional antenna can use the directional antenna with a high signal strength value, that is, a high-performance directional antenna, as the receiving antenna, thereby improving the comprehensive utilization rate and rational utilization rate of the directional antennas arranged at the corners of each car roof.

[0086] To further introduce the train signal transmission processing method provided by the present invention, the following will be described in conjunction with the following embodiments.

[0087] In yet another embodiment, when the rubber-tired train receives the BSM message, it can sort according to the received signal strength indication information RSSI, select the received message with the largest RSSI value, and then select the antenna with the smallest RSSI value to forward the BSM message. When forwarding, at the extended position 1 of the BSM message header, it is indicated that it is a relay message. This improves the comprehensive utilization rate and reasonable utilization rate of the directional antennas set at each roof corner.

[0088] As can be seen from the foregoing description, the train signal transmission and processing method provided by the present invention is applied to a rail vehicle. Directional antennas are provided at each roof corner of the rail vehicle, and the body length of the rail vehicle is greater than a length threshold; the method includes: when the rail vehicle needs to receive a transmission signal, detecting the received signal strength values of the directional antennas provided at each roof corner, where the transmission signal needs to be relayed outward by the rail vehicle; based on the received signal strength values, determining a signal receiving directional antenna among the directional antennas provided at each roof corner, where the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold; and invoking the signal receiving directional antenna to receive the transmission signal. It realizes efficient and accurate signal transmission and overcomes the problem of signal transmission occlusion caused by the too large body of the rubber-tired train.

[0089] The train signal transmission and processing system provided by the present invention will be described below. The train signal transmission and processing system described below can be mutually corresponding and referred to with the train signal transmission and processing method described above.

[0090] Figure 5 It is a schematic structural diagram of the train signal transmission and processing system provided by the present invention.

[0091] The following will be combined with Figure 5 to illustrate the structure of the train signal transmission and processing system provided by the present invention.

[0092] In an exemplary embodiment of the present invention, the train signal transmission and processing system can be applied to a rail vehicle. Directional antennas are provided at each roof corner of the rail vehicle, and the body length of the rail vehicle is greater than a length threshold; combined with Figure 5 it can be known that the train signal transmission and processing system can include a detection module 510, a determination module 520, and a processing module 530. Each module will be introduced separately below.

[0093] The detection module 510 can be configured to, when the rail vehicle needs to receive a transmission signal, detect the received signal strength values of the directional antennas provided at each of the roof corners, where the transmission signal needs to be relayed outward by the rail vehicle; A determination module 520 can be configured to determine a signal receiving directional antenna from among the directional antennas disposed at each roof corner based on the received signal strength value, where the received signal strength value of the signal receiving directional antenna is greater than the signal strength threshold; A processing module 530 can be configured to call the signal receiving directional antenna to receive the transmission signal.

[0094] In an exemplary embodiment of the present invention, the signal receiving directional antenna includes a preferred signal receiving directional antenna, where the preferred signal receiving directional antenna is the signal receiving directional antenna having the maximum received signal strength value among the signal receiving directional antennas; The processing module 530 can implement calling the signal receiving directional antenna to receive the transmission signal in the following manner: Call the preferred signal receiving directional antenna to receive the transmission signal.

[0095] In an exemplary embodiment of the present invention, the processing module 530 can also be configured to: In the case of detecting a potential collision hazard on one side of the rail vehicle corresponding to the direction of the roof corner of the rail vehicle, call the directional antenna disposed at the roof corner corresponding to the side with the potential collision hazard to receive the transmission signal.

[0096] In an exemplary embodiment of the present invention, the processing module 530 can also implement determining that there is a potential collision hazard on one side of the rail vehicle corresponding to the direction of the roof corner of the rail vehicle in the following manner: Based on the position information of the rail vehicle included in the transmission signal, determine the collision time between the rail vehicle and another vehicle; In the case where the collision time is less than the time threshold, determine that there is a potential collision hazard on one side of the rail vehicle corresponding to the direction of the roof corner of the rail vehicle.

[0097] In an exemplary embodiment of the present invention, the processing module 530 can also implement setting the position information of the rail vehicle included in the transmission signal in the following manner: Obtain the body size information of the rail vehicle, the geographical location information of the rail vehicle, and the relative position information of the geographical location information with respect to the body size of the rail vehicle; Based on the body size information of the rail vehicle, the geographical location information of the rail vehicle, and the relative position information of the geographical location information with respect to the body size of the rail vehicle, determine the position information of the rail vehicle in the transmission signal.

[0098] In an exemplary embodiment of the present invention, the processing module 530 can also be configured to: Based on the received signal strength values, a signal transmitting directional antenna is determined among the directional antennas arranged at each of the roof corners, wherein the received signal strength value of the signal transmitting directional antenna is less than or equal to the signal strength threshold; Through directional relaying, relay the transmission signal received by the signal receiving directional antenna to the signal transmitting directional antenna; Based on the signal transmitting directional antenna, transmit the transmission signal outward.

[0099] In an exemplary embodiment of the present invention, the signal transmitting directional antenna includes a preferred signal transmitting directional antenna, wherein the preferred signal transmitting directional antenna is the signal transmitting directional antenna with the smallest received signal strength value among the signal transmitting directional antennas; The processing module 530 can also implement transmitting the transmission signal outward based on the signal transmitting directional antenna in the following manner: Based on the preferred signal transmitting directional antenna, transmit the transmission signal outward.

[0100] In an exemplary embodiment of the present invention, the rail vehicle at least includes a rubber-tired train.

[0101] Based on the same inventive concept, the present application also provides a rail vehicle, and the rail vehicle will be introduced below in combination with the following embodiments.

[0102] In one embodiment, a rail vehicle may include a vehicle body and a processor. Among them, Directional antennas are arranged at each roof corner of the vehicle body, and The processor is configured to execute the train signal transmission processing method described in any one of the above.

[0103] Through the rail vehicle described in this embodiment, signal transmission can be carried out efficiently and accurately, overcoming the problem that the large body of the rubber-tired train causes signal transmission to be blocked.

[0104] Figure 6 An example of a schematic physical structure diagram of an electronic device is shown in Figure 6As shown in the figure, the electronic device may include: a processor 610, a communications interface 620, a memory 630, and a communication bus 640. Among them, the processor 610, the communications interface 620, and the memory 630 complete communication with each other through the communication bus 640. The processor 610 may call the logical instructions in the memory 630 to execute the train signal transmission processing method, which is applied to a rail vehicle. Directional antennas are provided at the apex angles of each car body of the rail vehicle, and the body length of the rail vehicle is greater than a length threshold. The method includes: when the rail vehicle needs to receive a transmission signal, detecting the received signal strength values of the directional antennas provided at each of the apex angles, where the transmission signal needs to be relayed and transmitted outward by the rail vehicle; based on the received signal strength values, determining a signal receiving directional antenna among the directional antennas provided at each of the apex angles, where the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold; and calling the signal receiving directional antenna to receive the transmission signal.

[0105] In addition, when the logical instructions in the above-mentioned memory 630 are implemented in the form of software functional units and sold or used as an independent product, they may be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: various media such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc that can store program codes.

[0106] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the train signal transmission processing method provided by each of the above methods. The method is applied to a rail vehicle, and directional antennas are provided at each roof corner of the rail vehicle. The body length of the rail vehicle is greater than a length threshold. The method includes: when the rail vehicle needs to receive a transmission signal, detecting the received signal strength values of the directional antennas provided at each roof corner, where the transmission signal needs to be relayed and transmitted outward by the rail vehicle; based on the received signal strength values, determining a signal receiving directional antenna among the directional antennas provided at each roof corner, where the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold; and invoking the signal receiving directional antenna to receive the transmission signal.

[0107] In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the train signal transmission processing method provided by each of the above methods. The method is applied to a rail vehicle, and directional antennas are provided at each roof corner of the rail vehicle. The body length of the rail vehicle is greater than a length threshold. The method includes: when the rail vehicle needs to receive a transmission signal, detecting the received signal strength values of the directional antennas provided at each roof corner, where the transmission signal needs to be relayed and transmitted outward by the rail vehicle; based on the received signal strength values, determining a signal receiving directional antenna among the directional antennas provided at each roof corner, where the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold; and invoking the signal receiving directional antenna to receive the transmission signal.

[0108] The device embodiments described above are merely illustrative. 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 to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

[0109] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A train signal transmission processing method, characterized in that: The method is applied to a rail vehicle, wherein each roof corner of the rail vehicle is provided with a directional antenna, and the body length of the rail vehicle is greater than a length threshold; the method comprises: In the case where the rail vehicle needs to receive a transmission signal, detecting and obtaining a received signal strength value of a directional antenna arranged at each of the roof corners, wherein the transmission signal needs to be relayed and transmitted outwardly by the rail vehicle; Based on the received signal strength value, determining a signal receiving directional antenna among the directional antennas arranged at each of the roof corners, wherein the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold; The signal receiving directional antenna is called to receive the transmission signal.

2. The train signal transmission processing method according to claim 1, characterized in that: The signal receiving directional antenna comprises a preferred signal receiving directional antenna, wherein the preferred signal receiving directional antenna is a signal receiving directional antenna having the largest received signal strength value among the signal receiving directional antennas; The calling of the signal receiving directional antenna to receive the transmission signal specifically includes: The preferred signal receiving directional antenna is called to receive the transmission signal.

3. The train signal transmission processing method according to claim 1, characterized in that: The method further comprises: When it is detected that there is a potential collision risk on the side of the rail vehicle in the direction corresponding to the roof angle of the rail vehicle, a directional antenna arranged at the roof angle corresponding to the side with the potential collision risk is called to receive the transmission signal.

4. The train signal transmission processing method according to claim 3, characterized in that: The side of the rail vehicle corresponding to the direction of the roof angle of the rail vehicle has a potential collision risk, which is determined in the following manner: Determining a collision time between the rail vehicle and another vehicle based on the position information of the rail vehicle included in the transmission signal; When the collision time is less than the time threshold, it is determined that there is a potential collision risk on the side of the rail vehicle in the direction corresponding to the roof angle of the rail vehicle.

5. The train signal transmission processing method according to claim 4, characterized in that: The position information of the rail vehicle included in the transmission signal is set in the following manner: Acquire body size information of the rail vehicle, geographic location information of the rail vehicle, and relative position information of the geographic location information with respect to the body size of the rail vehicle; Based on the body size information of the rail vehicle, the geographical location information of the rail vehicle, and the relative position information of the geographical location information with respect to the body size of the rail vehicle, the position information of the rail vehicle in the transmission signal is determined.

6. The train signal transmission processing method according to claim 1, characterized in that: After calling the signal receiving directional antenna to receive the transmission signal, the method further includes: Based on the received signal strength value, determining a signal transmitting directional antenna among the directional antennas arranged at each of the roof corners, wherein the received signal strength value of the signal transmitting directional antenna is less than or equal to a signal strength threshold; Relaying the transmission signal received by the signal receiving directional antenna to the signal sending directional antenna through directional relay; The transmission signal is transmitted outwardly based on the signal sending directional antenna.

7. The train signal transmission processing method according to claim 6, characterized in that: The signal transmission directional antenna includes a preferred signal transmission directional antenna, wherein the preferred signal transmission directional antenna is a signal transmission directional antenna having the smallest received signal strength value among the signal transmission directional antennas; The transmitting the transmission signal outward based on the signal sending directional antenna specifically includes: The transmission signal is transmitted outwardly by sending a directional antenna based on the preferred signal.

8. The train signal transmission processing method according to any one of claims 1 to 7, characterized in that: The rail vehicle at least includes a rubber-tyred train.

9. A train signal transmission processing system, characterized in that: The system is applied to a rail vehicle, wherein each roof corner of the rail vehicle is provided with a directional antenna, and the body length of the rail vehicle is greater than a length threshold; the system comprises: A detection module, used for detecting and obtaining a received signal strength value of a directional antenna arranged at each of the roof corners when the rail vehicle needs to receive a transmission signal, wherein the transmission signal needs to be relayed and transmitted outwardly by the rail vehicle; A determination module, configured to determine a signal receiving directional antenna among the directional antennas arranged at each of the roof corners based on the received signal strength value, wherein the received signal strength value of the signal receiving directional antenna is greater than a signal strength threshold; The processing module is used to call the signal receiving directional antenna to receive the transmission signal.

10. A rail vehicle, wherein: The rail vehicle comprises: A vehicle body, wherein a directional antenna is provided at each roof corner of the vehicle body, and Processor, wherein the processor is used to execute the train signal transmission processing method described in any one of claims 1 to 8.

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