Train control method, device and train

Abstract

This invention provides a train control method, device, and train. The method includes: upon receiving an instruction to instruct a target train to enter a rain / snow mode, acquiring target data, including the current emergency braking trigger speed of the target train, the target distance between the front and rear of the target train at the current moment, and a predefined target braking acceleration, whereby the target braking acceleration is the minimum braking acceleration of the target train in rain / snow weather; and, based on the target data, determining that the target train meets the conditions for entering the rain / snow mode at the current moment, controlling the target train to enter the rain / snow mode. The train control method, device, and train provided by this invention can control a train to enter a rain / snow mode without stopping it upon receiving an instruction to instruct it to do so, avoiding reduced train operating efficiency due to stopping and reducing operational safety risks before entering the rain / snow mode.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a train control method, device, and train. Background Technology

[0002] When trains are running on elevated or ground-level lines, rain and snow can cause the train's braking acceleration to be less than that in clear weather, resulting in the train slipping. This makes it impossible to ensure that the train can stop safely in an emergency, seriously affecting the safety of train operation.

[0003] Rain / snow mode is a special train control strategy. When a train encounters rain or snow, it can promptly enter rain / snow mode to improve operational safety during such weather conditions.

[0004] In related technologies, when trains encounter rain or snow, they need to stop before they can enter rain / snow mode, which seriously affects the train's operational efficiency. Furthermore, since trains cannot stop arbitrarily during operation, there is still a risk of slippage before the train stops and enters rain / snow mode, posing a safety hazard to the train's operation. Summary of the Invention

[0005] This invention provides a train control method, device, and train to address the shortcomings of existing technologies, such as reduced train operation efficiency caused by trains stopping to enter rain and snow mode, and significant safety hazards before trains stop to enter rain and snow mode. It enables trains to enter rain and snow mode without stopping.

[0006] This invention provides a train control method, comprising:

[0007] Upon receiving an instruction to instruct the target train to enter rain and snow mode, target data is acquired. The target data includes the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the destination of the target train at the current moment, and a predefined target braking acceleration, which is the minimum braking acceleration of the target train in rain and snow weather.

[0008] If, based on the target data, it is determined that the target train meets the conditions for entering the rain and snow mode at the current moment, the target train is controlled to enter the rain and snow mode.

[0009] According to a train control method provided by the present invention, based on the target data, determining whether the target train meets the conditions for entering the rain / snow mode at the current time includes:

[0010] Based on the emergency braking trigger speed and the target braking acceleration of the target train at the current moment, calculate the maximum braking distance of the target train at the current moment;

[0011] Compare the target distance between the front of the target train and the destination of the target train at the current moment with the sum of the maximum braking distance and the preset protection distance of the target train at the current moment;

[0012] If the target distance between the front of the target train and the destination of the target train at the current moment is greater than the sum of the maximum braking distance and the preset protection distance of the target train at the current moment, then the target train at the current moment is determined to meet the conditions for entering the rain and snow mode.

[0013] According to a train control method provided by the present invention, the step of calculating the maximum braking distance of the target train at the current moment based on the emergency braking trigger speed of the target train and the target braking acceleration at the current moment includes:

[0014] Calculate the square of the emergency braking trigger speed of the target train at the current moment as the first intermediate result, and calculate twice the target braking acceleration as the second intermediate result;

[0015] The quotient of the first intermediate result and the second intermediate result is calculated as the maximum braking distance of the target train at the current moment.

[0016] According to a train control method provided by the present invention, obtaining the emergency braking trigger speed of the target train at the current moment includes:

[0017] Obtain the maximum operating speed of the operating section where the target train is located at the current moment;

[0018] Based on the maximum operating speed of the operating section where the target train is located at the current moment, the emergency braking trigger speed of the target train at the current moment is determined.

[0019] According to a train control method provided by the present invention, obtaining the emergency braking trigger speed of the target train at the current moment includes:

[0020] Obtain the maximum operating speed of the line where the target train is located at the current moment;

[0021] Based on the maximum operating speed of the line where the target train is located at the current moment, the emergency braking trigger speed of the target train at the current moment is determined.

[0022] According to a train control method provided by the present invention, controlling the target train to enter the rain / snow mode includes:

[0023] Replace the original braking acceleration in the emergency braking trigger speed model of the target train with the braking acceleration in the rain and snow mode, add the speed limit information in the rain and snow mode to the movement authorization information of the target train, and switch the original vehicle control parameters of the target train to the vehicle control parameters in the rain and snow mode.

[0024] The present invention also provides a train control device, comprising:

[0025] The data acquisition module is used to acquire target data when an instruction is received to instruct the target train to enter rain and snow mode. The target data includes the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the end point of the target train at the current moment, and a predefined target braking acceleration, which is the minimum braking acceleration of the target train in rain and snow weather.

[0026] The train control module is used to control the target train to enter the rain and snow mode when it is determined, based on the target data, that the target train meets the conditions for entering the rain and snow mode at the current time.

[0027] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement any of the train control methods described above.

[0028] The present invention also provides a train, including: the electronic equipment described above.

[0029] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the train control method as described above.

[0030] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements any of the train control methods described above.

[0031] The train control method, device, and train provided by this invention, upon receiving an instruction to instruct the target train to enter rain and snow mode, acquires the emergency braking trigger speed of the target train at the current moment, the target distance between the front and rear of the target train at the current moment, and a predefined target braking acceleration as target data. Based on the target data, and after determining that the target train meets the conditions for entering rain and snow mode at the current moment, the method controls the target train to enter rain and snow mode. This allows the train to enter rain and snow mode without stopping, even upon receiving an instruction to instruct the train to enter rain and snow mode. It enables more precise and efficient control of the train entering rain and snow mode, avoids the reduction in train operating efficiency caused by stopping to enter rain and snow mode, and reduces the operational safety risks of the train before entering rain and snow mode. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is one of the flowcharts of the train control method provided by the present invention;

[0034] Figure 2 This is the second flowchart of the train control method provided by the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of the train control device provided by the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] It should be noted that in the relevant technology, the vehicle on board controller (VOBC) of the train can only enter the rain and snow mode when the train speed is zero, that is, when the train is stopped, after receiving the instruction to instruct the train to enter the rain and snow mode.

[0040] For trains operating on short-distance lines, the onboard controller of the aforementioned train can enter rain and snow mode when the train stops at the platform, upon receiving an instruction to do so.

[0041] For trains operating on long-distance lines, when the onboard controller of the train receives an instruction to enter rain and snow mode, the train needs to temporarily stop within the section before entering rain and snow mode, or the train can enter rain and snow mode after it has stopped at the platform.

[0042] However, if the train makes a temporary stop within the section, it will seriously affect the train's operating efficiency. If the train's onboard controller enters the rain and snow mode after the train has stopped at the platform, the train will still slip after the onboard controller receives the rain and snow mode instruction and before it stops at the platform, posing a safety hazard to the train.

[0043] To address this issue, the present invention provides a train control method. Based on the train control method provided by the present invention, when an instruction is received to instruct the train to enter rain / snow mode, the train can enter rain / snow mode without stopping. This method enables more precise and efficient control of the train to enter rain / snow mode, avoids the reduction in train operating efficiency caused by stopping to enter rain / snow mode, and reduces the operational safety risks of the train before entering rain / snow mode.

[0044] Figure 1 This is one of the flowcharts illustrating the train control method provided by this invention. The following is in conjunction with... Figure 1 Describe the train control method of the present invention. For example... Figure 1As shown, the method includes: Step 101, when an instruction is received to instruct the target train to enter the rain and snow mode, target data is acquired. The target data includes the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the end point of the target train at the current moment, and a predefined target braking acceleration, which is the minimum braking acceleration of the target train in rain and snow weather.

[0045] It should be noted that the executing entity in this embodiment of the invention is a train control device.

[0046] Specifically, the target train is the controlled object of the train control method provided by this invention. The target train can be determined based on actual needs. In this embodiment of the invention, the target train is not specifically limited.

[0047] It should be noted that the aforementioned train control device can be the onboard controller of the target train.

[0048] Specifically, when the onboard controller of the target train receives an instruction to instruct the train to enter rain and snow mode, it can obtain the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the destination of the target train at the current moment, and the predefined target braking acceleration as target data.

[0049] It should be noted that, in this embodiment of the invention, the emergency braking trigger speed of the target train at the current moment can be calculated based on the obstacle information in the target train's movement authorization information, or it can be determined based on the maximum operating speed of the operating section where the target train is located at the current moment, or it can be determined based on the maximum operating speed of the operating line where the target train is located at the current moment.

[0050] In this embodiment of the invention, the destination of the target train can be determined based on the destination information in the target train's mobility authorization information. Specifically, the mobility authorization information of the target train can be sent from the area controller of the area where the target train is located to the onboard controller of the target train.

[0051] In this invention, various adverse conditions in rainy and snowy weather can be simulated, and the braking acceleration of the target train under these conditions can be obtained. After obtaining the braking acceleration of the target train under various adverse conditions in rainy and snowy weather, the minimum braking acceleration of the target train in rainy and snowy weather can be determined as the target braking acceleration. It can be understood that the target braking acceleration is the braking acceleration of the target train under the most unfavorable condition in rainy and snowy weather.

[0052] It should be noted that the onboard controller of the target train can obtain the above-mentioned instructions for instructing the target train to enter rain and snow mode in the following two ways.

[0053] In the first approach, if the target train is operating at the Communication Based Train Control (CBTC) level, the onboard controller can send slippage information to the onboard signaling equipment. The onboard controller can also send the train's operational information to the onboard signaling equipment. The onboard signaling equipment can then transmit the slippage information, along with other operational information, to the integrated monitoring center.

[0054] Based on the target train's idling and slippage information and other operational information, the integrated monitoring center can determine if the target train meets the conditions for entering rain and snow mode, and then instruct the center's train dispatching to enter rain and snow mode.

[0055] The integrated monitoring center can also send instructions to the area controller of the train's location to instruct the target train to enter rain and snow mode when it determines that the central train dispatching has entered rain and snow mode.

[0056] When the area controller of the target train receives the instruction to instruct the target train to enter rain and snow mode, it can send the instruction to instruct the target train to enter sequence mode to the onboard controller of the target train.

[0057] In the second method, if the target train is at the block or interlocking (IL) level, the vehicle controller of the target train can receive instructions from the driver of the target train via a human-machine interface to instruct the target train to enter rain and snow mode.

[0058] Step 102: Based on the target data, if it is determined that the target train meets the conditions for entering the rain and snow mode at the current moment, control the target train to enter the rain and snow mode.

[0059] Specifically, after the onboard controller of the target train obtains the target data, it can determine whether the target train meets the conditions for entering the rain and snow mode at the current moment through numerical calculation, mathematical statistics, and other methods.

[0060] If the onboard controller of the target train determines, based on the target data, that the target train meets the conditions for entering rain and snow mode at the current moment, the onboard controller of the target train can control the target train to enter rain and snow mode.

[0061] As an optional embodiment, controlling the target train to enter the rain and snow mode includes: replacing the original braking acceleration in the emergency braking trigger speed model of the target train with the braking acceleration in the rain and snow mode, adding the speed limit information in the rain and snow mode to the movement authorization information of the target train, and switching the original train control parameters of the target train to the train control parameters in the rain and snow mode.

[0062] It should be noted that the braking acceleration, speed limit information, and vehicle control parameters in rain and snow mode can be predefined based on prior knowledge and / or actual conditions. In this embodiment of the invention, the specific values ​​of the braking acceleration, speed limit information, and vehicle control parameters in rain and snow mode are not limited.

[0063] The vehicle control parameters may include PID (Proportional Integral Derivative) control parameters. PID control parameters may include proportional control parameters, integral control parameters, and derivative control parameters.

[0064] This invention replaces the original braking acceleration in the emergency braking trigger speed model of the target train with the braking acceleration in rain and snow mode, adds the speed limit information in rain and snow mode to the movement authorization information of the target train, and switches the original train control parameters of the target train to the train control parameters in rain and snow mode. This can prevent the target train from slipping and improve the operational safety of the target train.

[0065] After the target train is put into rain and snow mode, if the target train is at the CBTC level, the central train dispatcher can send a manual instruction to the area controller of the area where the target train is located at any time to instruct the target train to exit rain and snow mode.

[0066] When the area controller of the target train receives the instruction to instruct the target train to exit the rain and snow mode, it can send the instruction to the onboard controller of the target train.

[0067] If the target train is in block or interlocking (IL) mode, the vehicle controller of the target train can receive instructions from the driver of the target train via a human-machine interface to instruct the target train to exit rain and snow mode.

[0068] Upon receiving the aforementioned instruction to instruct the target train to exit the rain and snow mode, the onboard controller of the target train can, after the target train stops, control the target train to exit the rain and snow mode, restore the original braking acceleration in the emergency braking trigger speed mode of the target train, remove the speed limit information in the rain and snow mode from the target train's movement authorization information, and switch the control parameters of the target train in the rain and snow mode to the original control parameters of the target train.

[0069] This invention, upon receiving an instruction to instruct a target train to enter rain / snow mode, acquires the target train's emergency braking trigger speed, the target distance between the train's front and rear ends, and a predefined target braking acceleration as target data. Based on this target data, and after determining that the target train meets the conditions for entering rain / snow mode at the current moment, it controls the target train to enter rain / snow mode. This allows for control of the train entering rain / snow mode without stopping, enabling more precise and efficient control. It avoids reduced train operating efficiency due to stopping to enter rain / snow mode and reduces operational safety risks before entering rain / snow mode.

[0070] As an optional embodiment, determining whether the target train meets the conditions for entering the rain / snow mode at the current moment based on the target data includes: calculating the maximum braking distance of the target train at the current moment based on the emergency braking trigger speed and target braking acceleration of the target train at the current moment.

[0071] Specifically, based on the emergency braking trigger speed and target braking acceleration of the target train at the current moment, the maximum braking distance of the target train at the current moment can be calculated numerically. The maximum braking distance of the target train at the current moment can be defined as the distance the target train would travel from the current moment until its speed reaches zero if the target train were to trigger emergency braking at the current moment.

[0072] As an optional embodiment, the maximum braking distance of the target train at the current moment is calculated based on the emergency braking trigger speed and the target braking acceleration of the target train at the current moment, including: calculating the square of the emergency braking trigger speed of the target train at the current moment as a first intermediate result, and calculating twice the target braking acceleration as a second intermediate result;

[0073] The quotient of the first intermediate result and the second intermediate result is calculated as the maximum braking distance of the target train at the current moment.

[0074] Specifically, in this embodiment of the invention, v can be used to represent the emergency braking trigger speed of the target train at the current moment; a can be used to represent the target braking acceleration; and s can be used to represent the maximum braking distance of the target train at the current moment. The specific formula for calculating the maximum braking distance s of the target train at the current moment, based on the emergency braking trigger speed v and the target braking acceleration a, is as follows:

[0075]

[0076] This invention provides a method to calculate the maximum braking distance of the target train at the current moment by using the square of the emergency braking trigger speed of the target train as the first intermediate result, and twice the target braking acceleration as the second intermediate result. The quotient of the first intermediate result and the second intermediate result is then calculated as the maximum braking distance of the target train at the current moment. This method can calculate the maximum braking distance of the target train at the current moment more simply and efficiently.

[0077] Compare the target distance between the front of the target train and the destination of the target train at the current moment with the sum of the target train's maximum braking distance and the preset protection distance at the current moment;

[0078] If the target distance between the front of the target train and the destination of the target train at the current moment is greater than the sum of the maximum braking distance and the preset protection distance of the target train at the current moment, then the target train at the current moment is determined to meet the conditions for entering the rain and snow mode.

[0079] It should be noted that the maximum braking distance of the target train at the current moment is greater than the target distance between the front of the target train and the destination of the target train at the current moment. This means that even if the target train brakes suddenly at the current moment, it can still stop before reaching the destination of the target train.

[0080] However, to further improve train operation safety, in this embodiment of the invention, the condition for the target train to enter rain and snow mode is set as follows: the target distance between the front and rear of the target train at the current moment is greater than the sum of the target train's maximum braking distance and the preset protection distance at the current moment. Based on the above condition, it is determined that the operational safety hazards of the target train in rain and snow weather can be eliminated to the greatest extent.

[0081] It should be noted that the preset protection distance in the embodiments of the present invention can be determined based on prior knowledge and / or actual conditions. The specific value of the preset protection distance is not limited in the embodiments of the present invention.

[0082] Specifically, after obtaining the maximum braking distance of the target train at the current moment, it is possible to compare the target distance between the front of the target train and the end point of the target train at the current moment to see if it is greater than the sum of the maximum braking distance of the target train at the current moment and the preset protection distance.

[0083] If the maximum braking distance of the target train at the current moment is greater than the sum of the maximum braking distance of the target train at the current moment and the preset protection distance, it can be determined that the target train at the current moment meets the conditions for entering the rain and snow mode, and the target train can be controlled to enter the rain and snow mode.

[0084] If the maximum braking distance of the target train at the current moment is not greater than the sum of the maximum braking distance of the target train at the current moment and the preset protection distance, it can be determined that the target train does not meet the conditions for entering the rain and snow mode at the current moment, and the target train will not enter the rain and snow mode.

[0085] This invention calculates the maximum braking distance of the target train at the current moment based on its emergency braking trigger speed and target braking acceleration. If the target distance between the front and rear of the target train at the current moment is greater than the sum of the maximum braking distance and the preset protection distance, it determines that the target train meets the conditions for entering rain and snow mode. This allows for more precise and efficient control of the train entering rain and snow mode, further improving the operational safety of the train in rain and snow weather.

[0086] As an optional embodiment, obtaining the emergency braking trigger speed of the target train at the current moment includes: obtaining the maximum operating speed of the operating section where the target train is located at the current moment;

[0087] The emergency braking trigger speed of the target train is determined based on the maximum operating speed of the operating section where the target train is located at the current moment.

[0088] As an optional embodiment, obtaining the emergency braking trigger speed of the target train at the current moment includes: obtaining the maximum operating speed of the line where the target train is located at the current moment;

[0089] Based on the maximum operating speed of the target train on the current line, determine the emergency braking trigger speed of the target train at the current moment.

[0090] It should be noted that if the emergency braking trigger speed of the target train at the current moment is calculated based on the obstacle information in the target train's movement authorization information, then it is necessary to determine whether the target train meets the conditions for entering rain / snow mode at the current moment by comparing its maximum braking distance before entering rain / snow mode with the sum of the target train's maximum braking distance at the current moment and the preset protection distance. The maximum braking distance before entering rain / snow mode can refer to the distance the target train travels from emergency braking to a complete stop when the target train is not in rain / snow mode.

[0091] However, the maximum braking distance of the target train at the current moment is calculated based on the emergency braking trigger speed and target braking acceleration of the target train at the previous moment. The target braking acceleration is the braking acceleration of the target train under the most unfavorable conditions in rain and snow. Therefore, it can be reasonably inferred that the maximum braking distance of the target train at the current moment must be greater than the maximum braking distance of the target train when it has not entered the rain and snow mode.

[0092] Therefore, if the emergency braking trigger speed of the target train at the current moment is calculated based on the obstacle information in the target train's movement authorization information, then if the target train is controlled to enter rain / snow mode, the safety of the target train's emergency braking cannot be guaranteed.

[0093] Furthermore, during train operation within a section, the movement authorization information sent by the area controller typically does not include obstacle information.

[0094] In this embodiment of the invention, the maximum operating speed of the operating section where the target train is located at the current moment can be obtained as the emergency braking trigger speed of the target train at the current moment. Alternatively, based on the maximum operating speed of the operating section where the target train is located at the current moment, the emergency braking trigger speed of the target train at the current moment can be obtained through numerical calculation, mathematical statistics, and other methods.

[0095] In this embodiment of the invention, the maximum operating speed of the line where the target train is located at the current moment can be obtained as the emergency braking trigger speed of the target train at the current moment. Alternatively, based on the maximum operating speed of the line where the target train is located at the current moment, the emergency braking trigger speed of the target train at the current moment can be obtained through numerical calculation, mathematical statistics, and other methods.

[0096] It should be noted that, in this embodiment of the invention, the maximum operating speed of the target train in the current operating section or the maximum operating speed of the target train on the current operating line can be obtained through data query, user input, or other means.

[0097] It is understandable that the current speed of the target train is less than the maximum speed of the operating section where the target train is located at the current time; and the current speed of the target train is less than the maximum speed of the operating line where the target train is located at the current time.

[0098] This invention determines the emergency braking trigger speed of the target train at the current moment based on the maximum operating speed of the operating section where the target train is located or the maximum operating speed of the operating line where the target train is located at the current moment, which can provide a more accurate data basis for whether to control the target train to enter the rain and snow mode.

[0099] To facilitate understanding of the train control method provided by this invention, an example is given below to illustrate the train control method provided by this invention. Figure 2 This is the second flowchart illustrating the train control method provided by this invention. Figure 2 As shown, after receiving the instruction to instruct the target train to enter the rain and snow mode, the maximum braking distance of the target train at the current moment can be calculated based on the emergency braking trigger speed and the target braking acceleration of the target train at the current moment.

[0100] After calculating the maximum braking distance of the target train at the current moment, it can be determined whether the target distance between the front of the target train and the end point of the target train at the current moment is greater than the sum of the maximum braking distance of the target train at the current moment and the preset protection distance.

[0101] If the target distance between the front of the target train and the destination of the target train at the current moment is greater than the sum of the maximum braking distance and the preset protection distance of the target train at the current moment, then the original braking acceleration in the emergency braking trigger speed model of the target train can be replaced with the braking acceleration in the rain and snow mode, the speed limit information in the rain and snow mode can be added to the movement authorization information of the target train, and the original vehicle control parameters of the target train can be switched to the vehicle control parameters in the rain and snow mode.

[0102] If the target distance between the front of the target train and the destination of the target train at the current moment is not greater than the sum of the maximum braking distance and the preset protection distance of the target train at the current moment, then the target train will not enter the rain and snow mode.

[0103] Figure 3 This is a structural schematic diagram of the train control device provided by the present invention. The following is in conjunction with… Figure 3 The train control device provided by this invention will be described below, and the train control device described below can be referred to in correspondence with the train control method provided by this invention described above. For example... Figure 3 As shown, there are data acquisition module 301 and train control module 302.

[0104] The data acquisition module 301 is used to acquire target data when it receives an instruction to instruct the target train to enter the rain and snow mode. The target data includes the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the end point of the target train at the current moment, and the predefined target braking acceleration, which is the minimum braking acceleration of the target train in rain and snow weather.

[0105] The train control module 302 is used to control the target train to enter the rain and snow mode when it is determined, based on the target data, that the target train meets the conditions for entering the rain and snow mode at the current moment.

[0106] Specifically, the data acquisition module 301 and the train control module 302 are electrically connected.

[0107] It should be noted that the train control device in the embodiments of the present invention can be the on-board controller of the target train.

[0108] Optionally, the train control module 302 can be specifically used to calculate the maximum braking distance of the target train at the current moment based on the emergency braking trigger speed and target braking acceleration of the target train at the current moment; compare the target distance between the front of the target train and the end point of the target train at the current moment with the sum of the maximum braking distance of the target train at the current moment and the preset protection distance; and determine that the target train at the current moment meets the conditions for entering the rain and snow mode if the target distance between the front of the target train and the end point of the target train at the current moment is greater than the sum of the maximum braking distance of the target train at the current moment and the preset protection distance.

[0109] Optionally, the train control module 302 can also be specifically used to calculate the square of the emergency braking trigger speed of the target train at the current moment as a first intermediate result, calculate twice the target braking acceleration as a second intermediate result, and calculate the quotient of the first intermediate result and the second intermediate result as the maximum braking distance of the target train at the current moment.

[0110] Optionally, the data acquisition module 301 can be specifically used to acquire the maximum operating speed of the operating section where the target train is located at the current time; and based on the maximum operating speed of the operating section where the target train is located at the current time, to determine the emergency braking trigger speed of the target train at the current time.

[0111] Optionally, the data acquisition module 301 can also be specifically used to acquire the maximum operating speed of the line where the target train is located at the current moment; and based on the maximum operating speed of the line where the target train is located at the current moment, determine the emergency braking trigger speed of the target train at the current moment.

[0112] Optionally, the train control module 302 can also be specifically used to replace the original braking acceleration in the emergency braking trigger speed model of the target train with the braking acceleration in the rain and snow mode, add the speed limit information in the rain and snow mode to the movement authorization information of the target train, and switch the original train control parameters of the target train to the train control parameters in the rain and snow mode.

[0113] The train control device in this embodiment of the invention, upon receiving an instruction to instruct the target train to enter rain and snow mode, acquires the emergency braking trigger speed of the target train at the current moment, the target distance between the front and rear of the target train at the current moment, and a predefined target braking acceleration as target data. Based on the target data, and after determining that the target train meets the conditions for entering rain and snow mode at the current moment, it controls the target train to enter rain and snow mode. This allows the train to enter rain and snow mode without stopping, even when receiving an instruction to instruct the train to enter rain and snow mode. It enables more precise and efficient control of the train entering rain and snow mode, avoids the reduction in train operating efficiency caused by stopping to enter rain and snow mode, and reduces the operational safety risks of the train before entering rain and snow mode.

[0114] Figure 4 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 4 As shown, the electronic device may include a processor 410, a communication interface 420, a memory 430, and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other through the communication bus 440. The processor 410 can call logical instructions in the memory 430 to execute a train control method, which includes: upon receiving an instruction to instruct the target train to enter rain / snow mode, acquiring target data, including the current emergency braking trigger speed of the target train, the target distance between the front and rear of the target train at the current moment, and a predefined target braking acceleration, wherein the target braking acceleration is the minimum braking acceleration of the target train in rain / snow weather; and, based on the target data, determining that the target train meets the conditions for entering rain / snow mode at the current moment, controlling the target train to enter rain / snow mode.

[0115] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0116] Based on the above embodiments, a train includes: electronic equipment as described above.

[0117] The train in this embodiment of the invention includes the aforementioned electronic equipment, which can implement the train control method provided by the present invention. This allows the train to enter rain and snow mode without stopping, enabling more precise and efficient control of the train entering rain and snow mode. It can also avoid the reduction in train operating efficiency caused by stopping to enter rain and snow mode and reduce the operational safety risks of the train before entering rain and snow mode.

[0118] 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 control method provided by the above methods. The method includes: when an instruction is received to instruct a target train to enter a rain / snow mode, acquiring target data, the target data including the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the end point of the target train at the current moment, and a predefined target braking acceleration, the target braking acceleration being the minimum braking acceleration of the target train in rain / snow weather; and, based on the target data, determining that the target train meets the conditions for entering the rain / snow mode at the current moment, controlling the target train to enter the rain / snow mode.

[0119] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, is implemented to perform the train control methods provided by the above methods. The method includes: upon receiving an instruction to instruct a target train to enter a rain / snow mode, acquiring target data, the target data including the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the end point of the target train at the current moment, and a predefined target braking acceleration, the target braking acceleration being the minimum braking acceleration of the target train in rain / snow weather; and, based on the target data, determining that the target train meets the conditions for entering the rain / snow mode at the current moment, controlling the target train to enter the rain / snow mode.

[0120] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0121] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence 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 cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions 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 control method, characterized in that, include: Upon receiving an instruction to instruct the target train to enter rain and snow mode, target data is acquired. The target data includes the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the destination of the target train at the current moment, and a predefined target braking acceleration, which is the minimum braking acceleration of the target train in rain and snow weather. Based on the target data, if it is determined that the target train meets the conditions for entering the rain and snow mode at the current moment, the target train is controlled to enter the rain and snow mode. Based on the target data, it is determined that the target train currently meets the conditions for entering the rain / snow mode, including: Based on the emergency braking trigger speed and the target braking acceleration of the target train at the current moment, calculate the maximum braking distance of the target train at the current moment; Compare the target distance between the front of the target train and the destination of the target train at the current moment with the sum of the maximum braking distance and the preset protection distance of the target train at the current moment; If the target distance between the front of the target train and the destination of the target train at the current moment is greater than the sum of the maximum braking distance and the preset protection distance of the target train at the current moment, then the target train at the current moment is determined to meet the conditions for entering the rain and snow mode.

2. The train control method according to claim 1, characterized in that, The calculation of the maximum braking distance of the target train at the current moment, based on the emergency braking trigger speed and the target braking acceleration, includes: Calculate the square of the emergency braking trigger speed of the target train at the current moment as the first intermediate result, and calculate twice the target braking acceleration as the second intermediate result; The quotient of the first intermediate result and the second intermediate result is calculated as the maximum braking distance of the target train at the current moment.

3. The train control method according to claim 1, characterized in that, Obtain the emergency braking trigger speed of the target train at the current moment, including: Obtain the maximum operating speed of the operating section where the target train is located at the current moment; Based on the maximum operating speed of the operating section where the target train is located at the current moment, the emergency braking trigger speed of the target train at the current moment is determined.

4. The train control method according to claim 1, characterized in that, Obtain the emergency braking trigger speed of the target train at the current moment, including: Obtain the maximum operating speed of the line where the target train is located at the current moment; Based on the maximum operating speed of the line where the target train is located at the current moment, the emergency braking trigger speed of the target train at the current moment is determined.

5. The train control method according to any one of claims 1 to 4, characterized in that, The control of the target train to enter the rain and snow mode includes: Replace the original braking acceleration in the emergency braking trigger speed model of the target train with the braking acceleration in the rain and snow mode, add the speed limit information in the rain and snow mode to the movement authorization information of the target train, and switch the original vehicle control parameters of the target train to the vehicle control parameters in the rain and snow mode.

6. A train control device, characterized in that, include: The data acquisition module is used to acquire target data when an instruction is received to instruct the target train to enter rain and snow mode. The target data includes the emergency braking trigger speed of the target train at the current moment, the target distance between the front of the target train and the end point of the target train at the current moment, and a predefined target braking acceleration, which is the minimum braking acceleration of the target train in rain and snow weather. The train control module is used to control the target train to enter the rain and snow mode when it is determined, based on the target data, that the target train meets the conditions for entering the rain and snow mode at the current time. The train control module is specifically used for: Based on the emergency braking trigger speed and the target braking acceleration of the target train at the current moment, calculate the maximum braking distance of the target train at the current moment; Compare the target distance between the front of the target train and the destination of the target train at the current moment with the sum of the maximum braking distance and the preset protection distance of the target train at the current moment; If the target distance between the front of the target train and the destination of the target train at the current moment is greater than the sum of the maximum braking distance and the preset protection distance of the target train at the current moment, then the target train at the current moment is determined to meet the conditions for entering the rain and snow mode.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the target train control method as described in any one of claims 1 to 5.

8. A train, characterized in that, include: The electronic device as claimed in claim 7.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the target train control method as described in any one of claims 1 to 5.

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