Regional rain and snow train operation protection method and system based on train-train communication

Abstract

The embodiment of the invention provides a regional rain and snow train operation protection method and system based on train-to-train communication, and is applied to the technical field of urban rail transit train control. The method comprises the steps that an RC determines logic section information needing to set a regional rain and snow mode according to received information and sends the logic section information to an ATS in an alarm mode so that the ATS can set the regional rain and snow mode in an interface popup mode, and the logic section information with the set regional rain and snow mode is obtained and then sent to a TMC; and the TMC returns the successfully stored logic section information of the set area rain and snow mode to the RC, and then the RC sends the logic section information to the corresponding IVOC, so that the IVOC judges whether the train enters the rain and snow mode or not according to the train body rain and snow protection range and the received logic section information of the set area rain and snow mode. Therefore, the rain and snow conditions of each area of the line are monitored in real time through data exchange among the subsystems in the VBTC signal system, and timeliness and high efficiency of train operation protection processing are guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the field of urban rail transit train control technology, and in particular to a method and system for protecting train operation from regional rain and snow based on vehicle-to-vehicle communication. Background Art

[0002] With the rapid development of urban rail transit, more and more citizens tend to travel by urban rail transit, which requires not only safe operation during working hours, but also efficient operation. Especially in extreme rainy and snowy weather, the adhesion coefficient between the wheel and rail is reduced due to the coverage of rain and snow, which in turn leads to a decrease in adhesion. It is easy for trains to brake in time, resulting in major traffic accidents such as rear-end collisions with the preceding vehicle or even derailment. To ensure the safety and high efficiency of train operation in rainy and snowy weather, it depends on the core train signal control system.

[0003] With the development of technology, a train signal control system based on vehicle-to-vehicle communication, VBTC, which is more intelligent and safer than the traditional CBTC system based on communication, has gradually matured. However, when solving the problem of how to ensure the safe operation of trains in rainy and snowy weather, the VBTC system sets the rainy and snowy mode for the entire line so that all trains on the line enter the rainy and snowy mode, reducing the maximum operating speed and maximum braking rate of the train, thereby ensuring the safe operation of the train in rainy and snowy weather. Although this method can ensure the safe operation of trains in rainy and snowy weather, it also brings about the problem of reduced operating efficiency: when the rainy and snowy mode is set for the entire line due to rainy and snowy weather in some areas of the line, other areas of the line without rainy and snowy weather will passively enter the rainy and snowy mode, resulting in a decrease in the operating efficiency of the area. How to ensure the safe and efficient operation of trains in rainy and snowy weather requires a new method of protecting train operation in rainy and snowy weather. Summary of the invention

[0004] The present disclosure provides a method and system for protecting train operation in regional rain and snow based on vehicle-to-vehicle communication.

[0005] According to a first aspect of the present disclosure, a method for protecting train operation in rain and snow in a region based on vehicle-to-vehicle communication is provided, which is applied to RC. The method comprises:

[0006] Receive the status information of the section relay, the logical section information affected by rain and snow, and the logical section information contained in the area exceeding the tolerance value of the wheelset slip rate;

[0007] Summarize and remove duplicates of the axle counting section information corresponding to the section relays in the picked-up state, the logic section information affected by rain and snow, and the logic section information contained in the area exceeding the tolerance value of the wheelset slip rate, and obtain the logic section information for which the regional rain and snow mode needs to be set;

[0008] The logical segment information of the regional rain and snow mode that needs to be set is sent to the ATS as rain and snow alarm information, so that the ATS can set the regional rain and snow mode through the pop-up window of the interface, obtain the logical segment information of the regional rain and snow mode that has been set, and send the logical segment information of the regional rain and snow mode that has been set to the TMC, so that the TMC can save the received logical segment information of the regional rain and snow mode that has been set, and return the saved logical segment information of the regional rain and snow mode that has been set to the RC;

[0009] The received logical section information of the set regional rain and snow mode is sent to the corresponding IVOC, so that the IVOC can determine whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode.

[0010] According to the above aspects and any possible implementation, an implementation is further provided.

[0011] The logical segment information affected by rain and snow is obtained in the following manner:

[0012] ITE uses high-definition cameras to collect environmental information of the line in real time, identify areas covered by rain and snow, and finally determine the logical section information contained in the areas affected by rain and snow in combination with train location information.

[0013] According to the above aspects and any possible implementation manner, an implementation manner is further provided, wherein the logical section information contained in the area exceeding the wheelset slip rate tolerance value is obtained in the following manner:

[0014] IVOC collects train speed and drive motor speed;

[0015] IVOC calculates the train speed based on the drive motor speed;

[0016] IVOC calculates the wheelset slip rate based on the collected train speed and the train speed calculated based on the drive motor speed;

[0017] IVOC compares the wheelset slip rate with the wheelset slip rate tolerance value to obtain the logical segment information contained in the area exceeding the wheelset slip rate tolerance value.

[0018] According to the above aspects and any possible implementation, an implementation is further provided.

[0019] ATS will set the logical segment information of the regional rain and snow mode through the interface pop-up window to set the regional rain and snow mode, and obtain the logical segment information of the set regional rain and snow mode, including:

[0020] ATS will alert the dispatcher through a pop-up window on the interface about the logical section information that needs to set the regional rain and snow mode, so that the dispatcher can set the regional rain and snow mode for the logical section that needs to set the regional rain and snow mode in combination with the real-time monitoring screen of the orbital Starlink line, and obtain the logical section information for which the regional rain and snow mode has been set.

[0021] According to the above aspects and any possible implementation, an implementation is further provided.

[0022] IVOC determines whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode, including:

[0023] IVOC determines whether there is logical section information with a set regional rain and snow mode within the calculated rain and snow protection range of the train body based on the rain and snow protection range of the train body; if so, the train enters the rain and snow mode; if not, the train does not enter the rain and snow mode.

[0024] According to the above aspects and any possible implementation, an implementation is further provided, wherein the rain and snow protection range of the train body is calculated by the following steps:

[0025] IVOC calculates the rain and snow protection front check distance of the train based on the current running speed of the train, the maximum running speed of the train in rain and snow mode, and the deceleration of the train during braking;

[0026] IVOC calculates the current rain and snow protection range of the train body according to the rain and snow protection front inspection distance of the train, the length of the train body and the maximum rear slip distance of the train.

[0027] According to the above aspects and any possible implementation manner, an implementation manner is further provided, wherein the method further includes:

[0028] The logical segment information for which the regional rain and snow mode needs to be set is compared with the received logical segment information for which the regional rain and snow mode has been set, the logical segment information for which the regional rain and snow mode has not been set is determined, and the logical segment information for which the regional rain and snow mode has not been set is sent to the ATS as rain and snow alarm information.

[0029] According to a second aspect of the present disclosure, a regional rain and snow train operation protection system based on vehicle-to-vehicle communication is provided. The system includes: an automatic train monitoring system ATS, a vehicle management controller TMC, a resource controller RC, an object controller OC, a track star link TSL and an intelligent vehicle-mounted controller IVOC;

[0030] The resource controller RC is used to perform the following operations:

[0031] Receive the status information of the section relay, the logical section information affected by rain and snow, and the logical section information contained in the area exceeding the tolerance value of the wheelset slip rate;

[0032] Summarize and remove duplicates of the axle counting section information corresponding to the section relays in the picked-up state, the logic section information affected by rain and snow, and the logic section information contained in the area exceeding the tolerance value of the wheelset slip rate, and obtain the logic section information for which the regional rain and snow mode needs to be set;

[0033] The logical segment information of the regional rain and snow mode that needs to be set is sent to the ATS as rain and snow alarm information, so that the ATS can set the regional rain and snow mode through the pop-up window of the interface, obtain the logical segment information of the regional rain and snow mode that has been set, and send the logical segment information of the regional rain and snow mode that has been set to the TMC, so that the TMC can save the received logical segment information of the regional rain and snow mode that has been set, and return the saved logical segment information of the regional rain and snow mode that has been set to the RC;

[0034] The received logical section information of the set regional rain and snow mode is sent to the corresponding IVOC, so that the IVOC can determine whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode.

[0035] According to a third aspect of the present disclosure, an electronic device is provided, which includes a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the program, the method described above is implemented.

[0036] According to a fourth aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored. When the program is executed by a processor, the method according to the first aspect of the present disclosure is implemented.

[0037] The embodiment of the present disclosure provides a method and system for protecting train operation in regional rain and snow based on vehicle-to-vehicle communication. The RC determines the logical section information that needs to be set for the regional rain and snow mode through the received information, and sends the logical section information to the ATS through an alarm, so that the ATS can set the regional rain and snow mode through an interface pop-up window, and sends the logical section information of the regional rain and snow mode to the TMC after obtaining it. The TMC returns the logical section information of the regional rain and snow mode that has been successfully saved to the RC, and the RC sends it to the corresponding IVOC, so that the IVOC can judge whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the regional rain and snow mode. The rain and snow conditions of each section of the line can be monitored in real time. When it is detected that there is a logical section affected by rain and snow on the line, the RC can promptly alarm the ATS, and the dispatcher can set the regional rain and snow mode for the logical section affected by rain and snow. Under the premise of not affecting the operation of other non-rain and snow areas of the line, it is ensured that the line train can safely pass through such rain and snow sections, thereby improving the operation efficiency of the overall line due to regional rain and snow. And there is no need to rely on manual input, that is, dispatchers do not need to actively check the weather forecast to determine whether the rain and snow mode needs to be set. Through data exchange between subsystems in the VBTC signal system, the rain and snow conditions in various areas of the line can be monitored in real time to ensure the timeliness and efficiency of train operation protection in rainy and snowy weather.

[0038] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, among which:

[0040] Figure 1 A flow chart of a method for protecting train operation in regional rain and snow based on vehicle-to-vehicle communication according to an embodiment of the present disclosure is shown;

[0041] Figure 2 A block diagram of a regional rain and snow train operation protection system based on vehicle-to-vehicle communication according to an embodiment of the present disclosure is shown;

[0042] Figure 3 A schematic block diagram of an exemplary electronic device capable of implementing an embodiment of the present disclosure is shown;

[0043] Figure 4A data interaction diagram of regional rain and snow information of each subsystem in a VBTC system capable of implementing an embodiment of the present disclosure is shown;

[0044] Figure 5 A schematic diagram of regional rain and snow train operation protection processing in a VBTC system capable of implementing an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0046] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] In the present disclosure, when rainy or snowy weather that affects the safe operation of trains is detected on the line, preventive emergency treatment can be used to enable the train to enter the rainy or snowy mode in advance to avoid accidents and circumvent risks.

[0048] Figure 1 A flow chart of a method 100 for protecting train operation in rain and snow in a region based on vehicle-to-vehicle communication according to an embodiment of the present disclosure is shown, which is applied to RC. The method 100 includes:

[0049] Step 110, receiving status information of the section relay, information of the logical section affected by rain and snow, and information of the logical section included in the area exceeding the tolerance value of the wheelset slip rate.

[0050] In some embodiments, the logical section information affected by rain and snow is obtained in the following manner: ITE collects environmental information of the line in real time through a high-definition camera, identifies areas covered by rain and snow, and finally determines the logical section information contained in the area affected by rain and snow in combination with the train position information.

[0051] In some embodiments, the logical section information contained in the area that exceeds the wheelset slip rate tolerance value is obtained in the following manner: IVOC collects the train speed and the drive motor speed; IVOC calculates the train speed according to the drive motor speed; IVOC calculates the wheelset slip rate based on the collected train speed and the train speed calculated according to the drive motor speed; IVOC compares the wheelset slip rate with the wheelset slip rate tolerance value to obtain the logical section information contained in the area that exceeds the wheelset slip rate tolerance value.

[0052] In some embodiments, multiple means are used to monitor the rain and snow status of each section of the line in real time, and the RC is responsible for summarizing and determining the logical sections affected by rain and snow, and finally the information of these logical sections is fed back to the ATS in the form of alarms. Among them, the means of monitoring the rain and snow status of the logical sections of the line specifically include:

[0053] (1) Liquid level sensors are placed next to the track in units of axle counter sections, and section liquid level relays connected to them are placed near them. When water accumulates in a local area of ​​the line due to heavy rainfall, snowfall, or clogged drains and floods the liquid level sensor, the sensor converts the water pressure into an electrical signal and amplifies it through the amplifier circuit and compensates it through the compensation circuit, and finally outputs it in the form of current. The current output by the sensor will be transmitted to the corresponding section liquid level relay, and the relay armature will change from the falling state to the attracted state. Based on the above principle, the OC cycle will eventually collect the status of all section relays under its jurisdiction and send it to the RC, which will process it uniformly.

[0054] (2) Each train is equipped with an Intelligent Train Eagle Eye Equipment (ITE) at both ends. During the operation of the train, the ITE collects environmental information of the line in real time through high-definition cameras, identifies areas covered by rain and snow through image recognition algorithms, and finally determines the logical section information contained in the area affected by rain and snow in combination with the train position information output by the inertial navigation device. The ITE sends the identified logical section information affected by rain and snow to the IVOC, which then periodically sends it to the RC for unified processing by the RC.

[0055] (3) IVOC periodically monitors the slip rate of the train wheels according to the collected train speed and the calculated train speed. The calculation method of the wheelset slip rate f is as follows:

[0056]

[0057] Among them, v is the collected train speed; v c IVOC is the train speed calculated according to the driving motor speed, and its calculation method is:

[0058]

[0059] Among them, π is the pi; r is the rotation radius of the wheelset; n is the speed of the motor.

[0060] IVOC compares the calculated wheelset slip rate with the wheelset slip rate tolerance value in the configuration data, and sends the logical segments contained in the area exceeding the wheelset slip rate tolerance value to RC, which will process them uniformly.

[0061] Step 120, aggregate and deduplicate the axle counter segment information corresponding to the segment relay in the engaged state, the logical segment information affected by rain and snow, and the logical segment information contained in the area exceeding the wheelset slip rate tolerance value, and obtain the logical segment information for which the regional rain and snow mode needs to be set.

[0062] In some embodiments, based on the above monitoring means, RC selects the axle counting segments corresponding to the segment level relays in the state of being sucked up, removes duplication and summarizes the logical segments contained in these axle counting segments and the logical segments contained in the areas exceeding the tolerance value of the wheelset slip rate sent by IVOC, as well as the logical segments affected by rain and snow, obtains the logical segment information that needs to set the regional rain and snow mode, and sends it to ATS in the form of an alarm. For example, as shown in the attached Figure 5 As shown, when rain and snow are detected in logical segments 2G and 7G, RC1 and RC2 will send the logical segment IDs corresponding to logical segments 2G and 7G to ATS respectively.

[0063] In some embodiments, the RC compares the logical segment information of the area rain and snow mode that needs to be set with the received logical segment information of the area rain and snow mode that has been set, determines the logical segment information of the area rain and snow mode that is not set, and sends the logical segment information of the area rain and snow mode that is not set as rain and snow alarm information to the ATS. In this way, a real-time alarm is formed.

[0064] Step 130, sending the logical segment information for which the regional rain and snow mode needs to be set to the ATS as rain and snow alarm information.

[0065] In some embodiments, the ATS will set the regional rain and snow mode through a pop-up window on the interface, obtain the logical segment information of the regional rain and snow mode that has been set, and send the logical segment information of the regional rain and snow mode that has been set to the TMC, so that the TMC can save the received logical segment information of the regional rain and snow mode that has been set, and return the saved logical segment information of the regional rain and snow mode that has been set to the RC. Specifically, the ATS will alert the dispatcher through a pop-up window on the interface that the logical segment information of the regional rain and snow mode that needs to be set can be used to set the regional rain and snow mode for the logical segment that needs to be set in combination with the real-time line monitoring screen of the orbiting Starlink TSL, and obtain the logical segment information of the regional rain and snow mode that has been set. For example, as shown in the attached figure, Figure 5 As shown, the ATS pop-up window alerted the occurrence of rain and snow in logical segments 2G and 7G, and then the dispatcher set the regional rain and snow mode for logical segments 2G and 7G through ATS.

[0066] In some embodiments, RC determines the logical section affected by rain and snow through the input data of OC and the communicating train, and sends the logical section information to ATS through alarm; the dispatcher sends the logical section information for which the regional rain and snow mode needs to be set to TMC according to the alarm content and the real-time monitoring screen of TSL. After TMC receives the logical section information for which the regional rain and snow mode has been set by ATS, it saves it to disk, and sends the logical section information for which the saved data is successfully sent to RCs of the entire line, while periodically reporting the saved logical section information for which the regional rain and snow mode has been set to ATS. By saving the data, even if TMC unexpectedly crashes, after it restarts, there is no need for the dispatcher to re-set the regional rain and snow mode for the logical section. TMC can also read the saved data and send the logical section information for which the regional rain and snow mode has been set to RCs of the entire line. As shown in the attached figure Figure 5 As shown, TMC saves the logical segments 2G and 7G. After successful saving, it sends a message to the RC of the entire line that the regional rain and snow mode has been set for the logical segments 2G and 7G, and reports to ATS that the regional rain and snow mode has been set for the logical segments 2G and 7G.

[0067] In some embodiments, the ATS will periodically refresh the station interface information based on the logical segment information of the set regional rain and snow mode reported by the RC, and add a rain and snow envelope to the logical segment of the successfully set regional rain and snow mode (mark the logical segment with a rectangular frame to represent that there is rain and snow in this area), so that the dispatching personnel can quickly distinguish the logical segment of the set regional rain and snow mode from the logical segment of the non-set regional rain and snow mode. If the logical segment information of the set regional rain and snow mode reported by the TMC is inconsistent with the logical segment information of the set regional rain and snow mode reported by the RC of the entire line, the ATS will pop up an alarm "The regional rain and snow status information of the logical segment reported by the TMC is inconsistent with the regional rain and snow status information of the logical segment reported by the RC", reminding the dispatching personnel to promptly check whether there is a communication abnormality between the alarmed TMC and the RC.

[0068] Step 140, sending the received logical segment information of the set regional rain and snow mode to the corresponding IVOC.

[0069] In some embodiments, IVOC determines whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode.

[0070] In some embodiments, IVOC determines whether the train enters the rain and snow mode based on the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode, including: IVOC determines whether there is logical section information of the set regional rain and snow mode within the rain and snow protection range of the train body based on the calculated rain and snow protection range of the train body; if so, the train enters the rain and snow mode; if not, the train does not enter the rain and snow mode.

[0071] In some embodiments, the train body rain and snow protection range is calculated by the following steps: IVOC calculates the train rain and snow protection front check distance based on the train's current running speed, the train's maximum running speed in rain and snow mode, and the train's deceleration during braking; IVOC calculates the train's current body rain and snow protection range based on the train's rain and snow protection front check distance, the train body length, and the train's maximum rear slip distance.

[0072] In some embodiments, after RC receives the logical segment information of the set regional rain and snow mode sent by TMC (TMC transmits to RC all the logical segment information of the set regional rain and snow mode, and RC filters out the logical segments of the current control area), it caches the regional rain and snow mode information of the logical segments belonging to the current control area (the configuration information contains the logical segment information belonging to the current control area, and RC determines whether it belongs to the current control area based on the configuration information) locally. RC periodically sends the logical segment information of the set regional rain and snow mode in the current centralized area to IVOC that communicates with the current centralized area, and periodically reports the regional rain and snow status information of the logical segments of the current centralized area to ATS through code bits (for example, the logical segment of the set regional rain and snow mode is 1, and the logical segment of the non-set regional rain and snow mode is 0, which can be pre-defined by humans).

[0073] In some embodiments, in particular, the communication method between RC and IVOC includes dual-network redundant main channel communication and dual-network redundant backup channel communication. When the main channel communication is abnormal, IVOC can also obtain the rain and snow mode status information of the corresponding logical segment area of ​​RC through the backup channel communication. Figure 5 As shown, RC1 will store the regional rain and snow mode status information of the logical segment 2G, and send it to IVOC1, IVOC2, IVOC4~IVOC6 communicating with it, and report to ATS that the regional rain and snow mode has been set for the logical segment 2G; RC2 will store the regional rain and snow mode status information of the logical segment 7G, and send it to IVOC1~IVOC5 communicating with it, and report to ATS that the regional rain and snow mode has been set for the logical segment 7G.

[0074] In some embodiments, after IVOC receives the logical segment information of the set regional rain and snow mode sent by RC, it caches the logical segment regional rain and snow mode status information locally with RC as a unit, and periodically calculates the rain and snow protection range L of the train body, and the calculation formula is as follows:

[0075] L=L r +L v +L f

[0076] In the above formula, L r L is the rain and snow protection back-check distance of the train, and its value is the maximum back-check distance of the line train in the data configuration. The maximum back-check distance of the train on different lines may be different; v is the length of the train body; L f The distance before the train is checked for rain and snow protection, which is calculated as follows:

[0077]

[0078] In the above formula, v c is the current running speed of the train; v maxis the maximum operating speed of the train in rain and snow mode on the line in the data configuration. The maximum operating speed of the train in rain and snow mode on different lines may be different; a is the deceleration of the train during braking. To ensure the comfort of passengers, a=2.5m / s 2 When v c Greater than v max When the train is decelerated to v max , L f Calculate according to the above formula; when v c Less than or equal to v min When the train does not need to brake to slow down, L f Take 0.

[0079] IVOC calculates the rain and snow protection range L for the train body according to the above calculation formula. When there is a logical section with a set regional rain and snow mode within the rain and snow protection range of the train body, the rain and snow mode set by IVOC is effective, and the train will enter the rain and snow mode to reduce the running speed and braking rate to ensure running safety. Figure 5 As shown, taking IVOC2 as an example, P h is the position of the train head, P f Add a rain and snow protection to the front of the train to check the distance. t is the position of the rear of the train, P r Add a rain and snow protection to the rear of the train and check the distance. f To P r The distance is the rain and snow protection range of the train body. Since the rain and snow protection range of IVOC2 includes the logical section 7G where the regional rain and snow mode has been set, IVOC2 needs to enter the rain and snow mode. Based on this, it can be determined whether all trains on the line need to enter the rain and snow mode.

[0080] In some embodiments, when IVOC and RC main and standby dual channels cannot communicate normally, IVOC can obtain regional rain and snow mode status information of the corresponding logical section in the RC concentration area from other IVOCs through vehicle-to-vehicle communication, and then determine whether the train needs to be set to rain and snow mode operation. In particular, since IVOC and RC main and standby dual channels have no communication, IVOC needs to be manually driven when entering this RC operation. At this time, if IVOC calculates that the train needs to enter the rain and snow mode, it needs to prompt the driver to enter the rain and snow mode through the human-machine interface (MMI), and finally the driver confirms whether the train enters the rain and snow mode. As shown in the attached Figure 5As shown in the figure, if both the main and standby dual channels of IVOC5 and RC1 cannot communicate normally, at this time, IVOC5 can obtain the regional rain and snow mode status information of all logical sections in the RC1 centralized area from IVOC1~IVOC3 and IVOC6 through vehicle-to-vehicle communication, and then determine whether it is necessary to prompt the driver to let the train enter the rain and snow mode according to the calculated rain and snow protection range of the train body.

[0081] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present disclosure is not limited by the order of the actions described, because according to the present disclosure, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present disclosure.

[0082] The above is an introduction to the method embodiment. The following is a further explanation of the scheme disclosed in the present invention through an apparatus embodiment.

[0083] Figure 2 FIG. 2 shows a block diagram of a regional rain and snow train operation protection system 200 based on vehicle-to-vehicle communication according to an embodiment of the present disclosure. Figure 2 As shown, the system 200 includes: an automatic train monitoring system ATS210, a vehicle management controller TMC220, a resource controller RC 230, an object controller OC 240, a track star link TSL 250 and an intelligent vehicle controller IVOC260; wherein the resource controller RC 230 is used to perform the following operations:

[0084] Receive the status information of the section relay, the logical section information affected by rain and snow, and the logical section information contained in the area exceeding the tolerance value of the wheelset slip rate;

[0085] Summarize and remove duplicates of the axle counting section information corresponding to the section relays in the picked-up state, the logic section information affected by rain and snow, and the logic section information contained in the area exceeding the tolerance value of the wheelset slip rate, and obtain the logic section information for which the regional rain and snow mode needs to be set;

[0086] The logic segment information of the regional rain and snow mode that needs to be set is sent to ATS210 as rain and snow alarm information, so that ATS210 can set the regional rain and snow mode by means of an interface pop-up window, obtain the logic segment information of the regional rain and snow mode that has been set, and send the logic segment information of the regional rain and snow mode that has been set to TMC 220, so that TMC 220 can save the received logic segment information of the regional rain and snow mode that has been set, and return the saved logic segment information of the regional rain and snow mode that has been set to RC 230;

[0087] The received logical section information of the set regional rain and snow mode is sent to the corresponding IVOC 260, so that the IVOC 260 can determine whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode.

[0088] Among them, Figure 4 The data exchange process about rain and snow between the subsystems of the train automatic control system VBTC is shown. For the detailed process, please refer to the introduction of the above embodiment of the method, which will not be repeated here.

[0089] It should be noted that the train automatic control system VBTC described in the present disclosure is the regional rain and snow train operation protection system 200 based on vehicle-to-vehicle communication recorded above.

[0090] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0091] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device and a readable storage medium.

[0092] Figure 3 A schematic block diagram of an electronic device 300 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0093] The electronic device 300 includes a computing unit 301, which can perform various appropriate actions and processes according to a computer program stored in a ROM 302 or a computer program loaded from a storage unit 308 into a RAM 303. In the RAM 303, various programs and data required for the operation of the electronic device 300 can also be stored. The computing unit 301, the ROM 302, and the RAM 303 are connected to each other via a bus 304. An I / O interface 305 is also connected to the bus 304.

[0094] A number of components in the electronic device 300 are connected to the I / O interface 305, including: an input unit 306, such as a keyboard, a mouse, etc.; an output unit 307, such as various types of displays, speakers, etc.; a storage unit 308, such as a disk, an optical disk, etc.; and a communication unit 309, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 309 allows the electronic device 300 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0095] The computing unit 301 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 301 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 301 performs the various methods and processes described above, such as method 100. For example, in some embodiments, the method 100 may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 308. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 300 via the ROM 302 and / or the communication unit 309. When the computer program is loaded into the RAM 303 and executed by the computing unit 301, one or more steps of the method 100 described above may be performed. Alternatively, in other embodiments, the computing unit 301 may be configured to perform the method 100 in any other appropriate manner (e.g., by means of firmware).

[0096] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0097] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0098] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0099] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0100] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0101] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0102] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0103] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A method for protecting train operation in regional rain and snow based on vehicle-to-vehicle communication, characterized in that: Applied to RC, including: Receive the status information of the section relay, the logical section information affected by rain and snow, and the logical section information contained in the area exceeding the tolerance value of the wheelset slip rate; Summarize and remove duplicates of the axle counting section information corresponding to the section relays in the picked-up state, the logic section information affected by rain and snow, and the logic section information contained in the area exceeding the tolerance value of the wheelset slip rate, and obtain the logic section information for which the regional rain and snow mode needs to be set; The logical segment information of the regional rain and snow mode that needs to be set is sent to the ATS as rain and snow alarm information, so that the ATS can set the regional rain and snow mode through the pop-up window of the interface, obtain the logical segment information of the regional rain and snow mode that has been set, and send the logical segment information of the regional rain and snow mode that has been set to the TMC, so that the TMC can save the received logical segment information of the regional rain and snow mode that has been set, and return the saved logical segment information of the regional rain and snow mode that has been set to the RC; The received logical section information of the set regional rain and snow mode is sent to the corresponding IVOC, so that the IVOC can determine whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode.

2. The method according to claim 1, characterized in that The logical segment information affected by rain and snow is obtained in the following manner: ITE uses high-definition cameras to collect environmental information of the line in real time, identify areas covered by rain and snow, and finally determine the logical section information contained in the areas affected by rain and snow in combination with train location information.

3. The method according to claim 1, characterized in that The logical section information contained in the area exceeding the wheelset slip rate tolerance value is obtained in the following manner: IVOC collects train speed and drive motor speed; IVOC calculates the train speed based on the drive motor speed; IVOC calculates the wheelset slip rate based on the collected train speed and the train speed calculated based on the drive motor speed; IVOC compares the wheelset slip rate with the wheelset slip rate tolerance value to obtain the logical segment information contained in the area exceeding the wheelset slip rate tolerance value.

4. The method according to claim 1, characterized in that ATS will set the logical segment information of the regional rain and snow mode through the interface pop-up window to set the regional rain and snow mode, and obtain the logical segment information of the set regional rain and snow mode, including: ATS will alert the dispatcher through a pop-up window on the interface about the logical section information that needs to set the regional rain and snow mode, so that the dispatcher can set the regional rain and snow mode for the logical section that needs to set the regional rain and snow mode in combination with the real-time monitoring screen of the orbital Starlink line, and obtain the logical section information for which the regional rain and snow mode has been set.

5. The method according to claim 1, characterized in that IVOC determines whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode, including: IVOC determines whether there is logical section information with a set regional rain and snow mode within the calculated rain and snow protection range of the train body based on the rain and snow protection range of the train body; if so, the train enters the rain and snow mode; if not, the train does not enter the rain and snow mode.

6. The method according to claim 1 or 5, characterized in that: The rain and snow protection range of the train body is calculated by the following steps: IVOC calculates the rain and snow protection front check distance of the train based on the current running speed of the train, the maximum running speed of the train in rain and snow mode, and the deceleration of the train during braking; IVOC calculates the current rain and snow protection range of the train body according to the rain and snow protection front inspection distance of the train, the length of the train body and the maximum rear slip distance of the train.

7. The method according to claim 1, characterized in that The method further comprises: The logical segment information for which the regional rain and snow mode needs to be set is compared with the received logical segment information for which the regional rain and snow mode has been set, the logical segment information for which the regional rain and snow mode has not been set is determined, and the logical segment information for which the regional rain and snow mode has not been set is sent to the ATS as rain and snow alarm information.

8. A regional rain and snow train operation protection system based on vehicle-to-vehicle communication, characterized in that: include: Automatic train monitoring system ATS, vehicle management controller TMC, resource controller RC, object controller OC, orbital star link TSL and intelligent onboard controller IVOC; The resource controller RC is used to perform the following operations: Receive the status information of the section relay, the logical section information affected by rain and snow, and the logical section information contained in the area exceeding the tolerance value of the wheelset slip rate; Summarize and remove duplicates of the axle counting section information corresponding to the section relays in the picked-up state, the logic section information affected by rain and snow, and the logic section information contained in the area exceeding the tolerance value of the wheelset slip rate, and obtain the logic section information for which the regional rain and snow mode needs to be set; The logical segment information of the regional rain and snow mode that needs to be set is sent to the ATS as rain and snow alarm information, so that the ATS can set the regional rain and snow mode through the pop-up window of the interface, obtain the logical segment information of the regional rain and snow mode that has been set, and send the logical segment information of the regional rain and snow mode that has been set to the TMC, so that the TMC can save the received logical segment information of the regional rain and snow mode that has been set, and return the saved logical segment information of the regional rain and snow mode that has been set to the RC; The received logical section information of the set regional rain and snow mode is sent to the corresponding IVOC, so that the IVOC can determine whether the train enters the rain and snow mode according to the rain and snow protection range of the train body and the received logical section information of the set regional rain and snow mode.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1-7.

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