阅读说明：本技术 自动调车过程中列车安全防护方法、装置、系统及列车 (Train safety protection method, device and system in automatic shunting process and train ) 是由 杨丽丽 王延翠 于延尊 张安 迟鹏飞 于 2021-02-08 设计创作，主要内容包括：本发明提供了自动调车过程中列车安全防护方法、装置、系统及列车,应用至第一车辆,所述第一车辆为自动调车过程中定位丢失的车辆；包括：第一车辆获取其自身定位丢失时的位置信息,结合存储的运行计划,以当前时刻的位置为坐标的原点,重构虚拟运行地图；第一车辆根据运行计划并基于重构的虚拟运行地图规划运行路线；控制第一车辆在重构的虚拟运行地图上按照运行路线运行至目标位置。以解决在调车的过程中列车由于定位丢失造成的无法完成正常调车的问题,确保车辆在行驶过程中的安全性。(The invention provides a train safety protection method, a train safety protection device, a train safety protection system and a train in an automatic shunting process, which are applied to a first vehicle, wherein the first vehicle is a vehicle which is positioned and lost in the automatic shunting process; the method comprises the following steps: the method comprises the steps that a first vehicle obtains position information when the first vehicle is lost in self positioning, combines a stored operation plan, and reconstructs a virtual operation map by taking the position of the current moment as an origin of coordinates; planning an operation route by the first vehicle according to the operation plan and based on the reconstructed virtual operation map; and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route. The problem that normal shunting cannot be completed due to positioning loss of the train in the shunting process is solved, and the safety of the train in the driving process is ensured.)

1. The train safety protection method in the automatic shunting process is applied to a first vehicle, wherein the first vehicle is a vehicle which is positioned and lost in the automatic shunting process; the method is characterized by comprising the following steps:

the method comprises the steps that a first vehicle obtains position information when the first vehicle is lost in positioning, the position of the first vehicle at the current moment is taken as the origin of coordinates, and a virtual running map is reconstructed by combining distance information of the first vehicle, a passing point and a stopping point;

planning an operation route by the first vehicle according to the operation plan and based on the reconstructed virtual operation map;

and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route.

2. The method for protecting train safety during automatic shunting process as claimed in claim 1, wherein said method further comprises: and the first vehicle acquires a control output instruction at the moment when the vehicle positioning is lost, and if a braking instruction is output at the moment, the output state is kept until the train stops. Otherwise, reconstructing the virtual operation map.

3. The train safety protection method in the automatic shunting process as claimed in claim 1 or 2, wherein reconstructing the virtual operation map specifically comprises:

the first vehicle and the ground equipment perform information interaction, and the corresponding station type is judged according to the information type transmitted by the ground equipment;

and according to the position information when the first vehicle is positioned and lost, the obtained station type and the distance measurement information of the first vehicle and the station, the position information, the station type and the distance measurement information form map information, and the virtual operation map is constructed.

4. The train safety protection method in the automatic shunting process as claimed in claim 3, wherein the first vehicle virtual positioning is performed by accumulating the distance measurement information of the first vehicle and each station and the position information when the first vehicle positioning is lost.

5. The train safety protection method in the automatic shunting process as claimed in claim 3, wherein the ground equipment respectively performs information interaction with the first vehicle and sends response information to the first vehicle;

the first vehicle positions the intersection point as a passing point according to the location type in the received response message, and defines the end point as a parking point.

6. The train safety protection method in the automatic shunting process as claimed in claim 1, wherein after the virtual operation map is constructed, the first vehicle performs information interaction with ground equipment in real time, the virtual positioning position of the first vehicle is updated, and if the front is a passing point, traction is output to control the first vehicle to operate at a constant speed.

7. The train safety protection method in the automatic shunting process as claimed in claim 6, wherein the first vehicle runs at a constant speed, and simultaneously obtains the distance information between the second vehicle on the adjacent track and the junction, and locates the second vehicle with the possibility of junction on the line.

8. The method of claim 7, wherein a second vehicle with a potential for intersection on the route is located: the ground equipment at the intersection point performs information interaction with the first vehicle and the second vehicle respectively, the real-time distance of the first vehicle is sent to the second vehicle, the second vehicle controls the running speed after obtaining the distance information, and the first vehicle and the second vehicle are prevented from colliding at the intersection point, wherein the second vehicle is a vehicle with normal positioning signals.

9. The train safety protection method in the automatic shunting process as claimed in claim 1, wherein after the virtual operation map is constructed, the first vehicle performs information interaction with ground equipment in real time, the virtual position of the first vehicle is updated, if the front is a parking spot, the first vehicle is controlled to operate, meanwhile, the braking distance table is called and compared, and when the difference value between the distance between the first vehicle and the parking spot and the braking distance is smaller than or equal to the set threshold value, a route is planned according to the parking spot distance, and braking is output to control the first vehicle to park at the parking spot.

10. The train safety protection device is applied to a first vehicle in the automatic shunting process, and the first vehicle is a vehicle which is positioned and lost in the automatic shunting process; the method is characterized by comprising the following steps:

the running map reconstruction module is used for acquiring position information when the first vehicle is lost in self positioning, and reconstructing a virtual running map by taking the position of the current moment as the origin of coordinates and combining the distance information of the first vehicle and a passing point and a stopping point;

the operation route planning module is used for planning an operation route of the first vehicle according to the operation plan and based on the reconstructed virtual operation map;

and the vehicle operation control module is used for controlling the first vehicle to operate to the target position on the reconstructed virtual operation map according to the operation route.

11. The train safety protection system is applied to a first vehicle in the automatic shunting process, and the first vehicle is a vehicle which is positioned and lost in the automatic shunting process; it is characterized in that the utility model is characterized in that,

the safety protection system comprises: the system comprises a signal system, ground equipment and a vehicle-mounted system installed on a first vehicle, wherein the ground equipment is arranged according to the actual condition of a line;

the vehicle-mounted system is communicated with the signal system to obtain an effective position when the first vehicle is positioned and lost, and stored line information and an operation plan;

the vehicle-mounted system and the ground equipment carry out information interaction, and a virtual running map is reconstructed by combining the obtained information, taking the position of the current moment as the origin of coordinates and combining the distance information of the first vehicle and the passing point and the parking point;

planning an operation route according to the operation plan and based on the reconstructed virtual operation map;

and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route.

12. A train is characterized by comprising a vehicle-mounted system, wherein the vehicle-mounted system comprises an automatic shunting main control unit and vehicle-mounted ground interaction equipment, and the vehicle-mounted ground interaction equipment is used for carrying out information interaction with the ground equipment, acquiring position information of a first vehicle and transmitting the position information to the automatic shunting main control unit;

the automatic shunting main control unit receives position information when the first vehicle is lost in positioning, and reconstructs a virtual running map by taking the position of the current moment as an origin of coordinates and combining distance information of the first vehicle and a passing point and a parking point;

planning an operation route according to the operation plan and based on the reconstructed virtual operation map;

and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route.

Technical Field

The invention belongs to the technical field of automatic train shunting, and particularly relates to a train safety protection method, device and system in an automatic train shunting process and a train.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Aiming at the dispatching of the vehicle section, the actual operation mainly depends on manual work, but the efficiency, the accuracy and the timeliness of the manual planning operation are difficult to guarantee.

The main reasons for this are:

(1) the shunting operation is carried out in the motor train stations with huge numbers of parking station tracks and overhauling station tracks, the scene is complex, and the efficient and accurate completion of the overhauling operation and shunting and warehousing is difficult to take into account.

(2) Due to the fact that shunting conditions in a yard are complex, requirements on the speed and parking of the motor train unit are different in different routes and different positions, and monitoring and management implementation difficulty in the shunting process is high.

(3) The dispatching command system based on the vehicle section and the station main line is relatively independent, joint control is carried out by means of manual work and ground systems, information transmission is delayed, and waiting time is long, human resources are wasted, and efficiency is low due to human factors.

Therefore, based on the line conditions of the vehicle section and the current state of technical equipment, the automatic shunting technology is widely adopted to solve the problems in combination with the technical requirements on running time, speed, transportation safety and the like.

However, the inventor finds in research that the current automatic shunting technology has the following technical problems in the implementation process:

because train positioning of automatic shunting of the motor train unit is mainly based on communication between a vehicle-mounted signal system and a ground system transponder or a positioning server, when the train and ground communication is interrupted or positioning is lost due to other reasons in the shunting process, the train cannot identify the position of the train, accurate train operation control cannot be carried out, the automatic shunting mode needs to be quitted, emergency braking is applied to stop the train, manual processing is waited, and the efficiency of automatic shunting is greatly influenced.

Disclosure of Invention

In order to solve the problems, the invention provides a train safety protection method, a train safety protection device, a train safety protection system and a train based on the technology in the automatic shunting process, so that the problem that the train cannot normally shunting due to positioning loss in the shunting process is solved, and the safety of the train in the driving process is ensured.

According to some embodiments, the invention adopts the following technical scheme:

in a first aspect, a train safety protection method in an automatic shunting process is disclosed, and the method is applied to a first vehicle, wherein the first vehicle is a vehicle which is positioned and lost in the automatic shunting process; the method comprises the following steps:

the method comprises the steps that a first vehicle obtains position information when the first vehicle is lost in positioning, the position of the first vehicle at the current moment is taken as the origin of coordinates, and a virtual running map is reconstructed by combining distance information of the first vehicle, a passing point and a stopping point;

planning an operation route by the first vehicle according to the operation plan and based on the reconstructed virtual operation map;

and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route.

In some possible embodiments, the method further comprises: and the first vehicle acquires an output instruction at the moment when the vehicle is positioned and lost, if the first vehicle is outputting a braking instruction at the moment, the first vehicle keeps an output state, and if the first vehicle is not outputting the braking instruction, a virtual running map is reconstructed.

In some possible embodiments, reconstructing the virtual operation map specifically includes:

the first vehicle and the ground equipment perform information interaction, and the corresponding station type is judged according to the information type transmitted by the ground equipment;

and constructing a virtual operation map according to the position information when the first vehicle is lost in positioning, the obtained station type and the distance measurement information of the first vehicle and the station.

In some embodiments, the distance measurement information of the first vehicle and each station and the position information when the first vehicle positioning is lost are accumulated to perform the first vehicle virtual positioning.

In some possible embodiments, the ground device respectively performs information interaction with the first vehicle and sends response information to the first vehicle;

the first vehicle positions the intersection point as a passing point according to the location type in the received response message, and defines the end point as a parking point.

In some possible embodiments, after the virtual operation map is constructed, the first vehicle performs information interaction with the ground equipment in real time, the virtual position of the first vehicle is updated, and if the front is a passing point, traction is output to control the first vehicle to operate at a constant speed.

In some possible embodiments, the distance information between the second vehicle and the junction point on the adjacent track is obtained while the first vehicle is running at a constant speed, and the second vehicle with the possibility of junction on the line is positioned.

In some possible embodiments, a second vehicle is located on the route where there is a possibility of a junction: the ground equipment at the intersection point performs information interaction with the first vehicle and the second vehicle respectively, the real-time distance of the first vehicle is sent to the second vehicle, the second vehicle controls the running speed after obtaining the distance information, and the first vehicle and the second vehicle are prevented from colliding at the intersection point, wherein the second vehicle is a vehicle with normal positioning signals.

In some possible embodiments, after the virtual operation map is constructed, the first vehicle performs information interaction with the ground equipment in real time, the virtual position of the first vehicle is updated, if the front is a parking point, the first vehicle is controlled to operate, meanwhile, the braking distance table is called, comparison is performed, when the difference value between the distance between the first vehicle and the parking point and the braking distance is smaller than or equal to a set threshold value, a route is planned according to the distance between the first vehicle and the parking point, and braking is output to control the first vehicle to park at the parking point.

In a second aspect, a train safety protection device in an automatic shunting process is disclosed, which is applied to a first vehicle, wherein the first vehicle is a vehicle which is positioned and lost in the automatic shunting process; the method comprises the following steps:

the running map reconstruction module is used for acquiring position information when the first vehicle is lost in self positioning, and reconstructing a virtual running map by taking the position of the current moment as the origin of coordinates and combining the distance information of the first vehicle and a passing point and a stopping point;

the operation route planning module is used for planning an operation route of the first vehicle according to the operation plan and based on the reconstructed virtual operation map;

and the vehicle operation control module is used for controlling the first vehicle to operate to the target position on the reconstructed virtual operation map according to the operation route.

In a third aspect, a train safety protection system in an automatic shunting process is disclosed, which is applied to a first vehicle, wherein the first vehicle is a vehicle which is positioned and lost in the automatic shunting process;

the safety protection system comprises: the system comprises a signal system, ground equipment and a vehicle-mounted system installed on a first vehicle, wherein the ground equipment is arranged according to the actual condition of a line;

the vehicle-mounted system is communicated with the signal system to obtain an effective position when the first vehicle is positioned and lost, and stored line information and an operation plan;

the vehicle-mounted system and the ground equipment carry out information interaction, and a virtual running map is reconstructed by combining the obtained information, taking the position of the current moment as the origin of coordinates and combining the distance information of the first vehicle and the passing point and the parking point;

planning an operation route according to the operation plan and based on the reconstructed virtual operation map;

and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route.

In a fourth aspect, a train is disclosed, which includes a vehicle-mounted system, where the vehicle-mounted system includes an automatic shunting main control unit and a vehicle-mounted ground interaction device, where the vehicle-mounted ground interaction device is configured to perform information interaction with a ground device, obtain position information of a first vehicle, and transmit the position information to the automatic shunting main control unit;

the automatic shunting main control unit receives position information when the first vehicle is lost in positioning, and reconstructs a virtual running map by taking the position of the current moment as an origin of coordinates and combining distance information of the first vehicle and a passing point and a parking point;

planning an operation route according to the operation plan and based on the reconstructed virtual operation map;

and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route.

The vehicle-mounted ground interaction device may be a vehicle-mounted secondary radar,

the information transmitted when the vehicle-mounted secondary radar and the ground equipment perform information interaction is not limited to ranging, and can also comprise information such as speed, direction, track identification codes and the like.

Compared with the prior art, the invention has the beneficial effects that:

according to the technical scheme, a first vehicle acquires position information when the vehicle is lost in positioning, and an operation map is reconstructed by combining stored operation plan, operation route and parking position information; the first vehicle is controlled to run to the set position in the running plan according to the reconstructed running map, the problem that automatic shunting cannot be carried out after the vehicle positioning information is lost can be solved through the means, after the vehicle is subjected to map reconstruction according to the obtained information, the vehicle can normally shunt to the target position according to the plan, automatic shunting is really realized, manual participation is avoided, and the efficiency of automatic shunting can be improved.

The technical scheme of the disclosure adopts the virtual positioning method to identify the train which is interactive with the fault car, and control the train to run according to the positioning information on the line map, thereby avoiding the possibility of collision.

The safety protection method after the train is positioned and lost provided by the technical scheme of the disclosure not only depends on ground signals, adopts the detection equipment of the train to reconstruct a line map, positions the train in a space range on the map and is used as a fault train control guidance, fully utilizes the equipment resources of the existing automatic shunting system, adds a sensing speed measuring and distance measuring means before the train, and adopts a fixed point + map mode to replan shunting line on the basis of the original shunting line, thereby ensuring the train operation safety in the shunting process under the condition of positioning loss and simultaneously improving the operation efficiency under the condition of fault of the automatic shunting system.

Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a schematic diagram of a linkage between a missing vehicle-ground shunting system and a vehicle-mounted system in an embodiment of the disclosure;

FIG. 2 is a schematic diagram of a positioning process in an example embodiment of the present disclosure;

FIG. 3 is a schematic view of a running map reconstruction according to an embodiment of the disclosure;

fig. 4 is a schematic diagram of a train repositioning and protection method according to an embodiment of the disclosure.

The specific implementation mode is as follows:

the invention is further described with reference to the following figures and examples.

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The first embodiment is as follows:

in the embodiment, the automatic shunting of the motor train unit is taken as an example for illustration, but the scheme provided by the invention is not only applicable to the automatic shunting of the motor train unit. The method can also be suitable for automatic shunting of other types of vehicles according to different actual scenes or train objects.

Referring to fig. 1, in an embodiment, a train safety protection method in an automatic shunting process is disclosed, which is applied to a first vehicle, wherein the first vehicle is a vehicle for locating a loss in the automatic shunting process; the method comprises the following steps:

the method comprises the steps that a first vehicle obtains position information when the first vehicle is lost in self positioning, combines a stored operation plan, and reconstructs a virtual operation map by taking the position of the current moment as an origin of coordinates;

and controlling the first vehicle to run to the target position of the running plan based on the reconstructed virtual running map.

By the aid of the mode, the shunting route is re-planned on the basis of the original shunting route, the operation safety of the trains in the shunting process under the condition of positioning loss is guaranteed, and the operation efficiency under the condition of faults of the automatic shunting system is improved.

When it is necessary to explain, the operation plan includes not only the destination information, but also time and stop information, such as stop passing time, position, stop time, stop passing time, and the like. The first vehicle relies on the information to reconstruct a shunting route which is basically consistent with the operation plan according to the self distance measuring means and the response information on the ground so as to control the train.

In some possible embodiments, the method further comprises: and based on a safety guiding principle, only identifying the output instruction of the first vehicle at the moment when the vehicle positioning is lost, if the braking instruction is output at the moment, keeping the output state, and if not, reconstructing a virtual running map.

In some possible embodiments, reconstructing the virtual operation map specifically includes:

the first vehicle and the ground equipment perform information interaction, and the corresponding station type is judged according to the information type transmitted by the ground equipment;

and constructing a virtual operation map according to the position information when the first vehicle is lost in positioning, the obtained station type and the ranging information of the first vehicle.

The ground equipment respectively carries out information interaction with the first vehicle and sends response information to the first vehicle;

the first vehicle positions the intersection point as a passing point according to the location type in the received response message, and defines the end point as a parking point.

In a specific application, referring to fig. 2, the vehicle 1 is a positioning lost vehicle, and the vehicles 2 and 3 are normal running vehicles. Every switch on the ground to and storehouse gate all set up secondary radar signal machine. For the vehicle 1, the shunting route includes two: b1+ B2+ B3+ S4; b1+ B2+ B3+ S3.

The explanation here is as follows: the vehicle 1 is a first vehicle, the vehicle 2 is a second vehicle, and the vehicle 3 is a third vehicle.

In some possible embodiments, the method further comprises:

equipment at a meeting point and an end point in a shunting line respectively carries out information interaction with a first vehicle and sends response information to the first vehicle;

the first vehicle positions the meeting point as a passing point according to the type of the place in the received response message, and defines the end point as a parking point.

For example, when reconstructing a map, as shown in fig. 3, the main control unit uses the last valid position as a starting point, and uses the starting point as a virtual coordinate 0 point, the vehicle-mounted secondary radar performs information interaction with the ground secondary radar to complete speed measurement and distance measurement, at this time, the vehicle 1 acquires the distances between the vehicle and the intersection points B1, B2, and B3 and the stopping points S3 and S4, and accumulates the distances with the currently received valid positions to perform virtual train positioning. The response information transmitted from the secondary radars at B1, B2, and B3 to the vehicle 1 includes the point type "pass", and the response information transmitted from the secondary radars at S3 and S4 to the vehicle 1 includes the point type "stop". The vehicle 1 master control unit positions B1, B2, B3 as passing points and S3, S4 as parking points according to the received information. The distance between the "last valid position of the train" + "and the passing point" + "and the stopping point" constitutes map information, and the map is basically fixed, and the vehicle 1 runs on the map according to actual conditions.

In specific operation, referring to fig. 2, 3 and 4, after the map is constructed, the vehicle 1 measures the distances between itself and the passing points and the stopping points in real time, compares the distances with the map information in real time, calls a train braking distance table, and directly sends a maximum service braking instruction to control the train to stop if the distance is close to the train braking distance and is determined to be close to the specified stopping point S3 or S4.

If the train is on the main track of the station track, a traction instruction is output to control the train to run at a constant speed of 40km/h, the method of the secondary radar is adopted to virtually position the train in real time, a train braking distance table is called according to running line information, and when the distance difference between the current position of the train and a stopping point is smaller than the maximum service braking distance, the maximum service braking is output to control the train to stop.

According to the operation route information, the vehicle 1 and the vehicle 2 may meet at the point B2, the vehicle 2 is a normal vehicle, the vehicle 1 is a positioning lost vehicle, the vehicle 1 interacts with the information at the point B2, and the point B2 acquires the real-time distance from the vehicle 1. Meanwhile, the vehicle 2 and the secondary radar of the B2 perform information interaction, the B2 sends the real-time distance of the vehicle 1 to the vehicle 2, and the vehicle 2 obtains the distance information and controls the speed in advance according to running trend analysis.

Example II

The embodiment discloses a train safety protection device in an automatic shunting process, which is applied to a first vehicle, wherein the first vehicle is a vehicle which is positioned and lost in the automatic shunting process;

the method comprises the following steps:

the running map reconstruction module is used for acquiring position information when the first vehicle is lost in self positioning, and reconstructing a virtual running map by taking the position of the current moment as the origin of coordinates and combining the distance information of the first vehicle and a passing point and a stopping point;

the operation route planning module is used for planning an operation route of the first vehicle according to the operation plan and based on the reconstructed virtual operation map;

and the vehicle operation control module is used for controlling the first vehicle to operate to the target position on the reconstructed virtual operation map according to the operation route.

Specifically, according to the position information, operation planning is performed, a control instruction is output, and train operation is controlled, wherein the control strategy comprises integration of scene requirements for passing, stopping, anti-collision and the like.

Example III

Referring again to fig. 1, this embodiment discloses a train safety protection system during automatic shunting, applied to a first vehicle, which is a vehicle that is located lost during automatic shunting;

the safety protection system comprises: the system comprises a signal system, ground equipment and a vehicle-mounted system installed on a first vehicle, wherein the ground equipment is arranged according to the actual condition of a line;

the vehicle-mounted system is communicated with the signal system to obtain an effective position when the first vehicle is positioned and lost, and stored line information and an operation plan;

the vehicle-mounted system and the ground equipment carry out information interaction, and a virtual running map is reconstructed by combining the obtained information, taking the position of the current moment as the origin of coordinates and combining the distance information of the first vehicle and the passing point and the parking point;

planning an operation route according to the operation plan and based on the reconstructed virtual operation map;

and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route.

When the ground equipment is a ground secondary radar, the ground secondary radar is arranged on a node related to the ground according to the actual situation of the line.

Example four

Referring to fig. 1 again, the embodiment discloses a train, which includes a vehicle-mounted system, where the vehicle-mounted system includes an automatic shunting main control unit and a vehicle-mounted ground interaction device, where the vehicle-mounted ground interaction device is configured to perform information interaction with a ground device, obtain position information of a first vehicle, and transmit the position information to the automatic shunting main control unit;

the automatic shunting main control unit receives position information when the first vehicle is lost in positioning, and reconstructs a virtual running map by taking the position of the current moment as an origin of coordinates and combining distance information of the first vehicle and a passing point and a parking point;

planning an operation route according to the operation plan and based on the reconstructed virtual operation map;

and controlling the first vehicle to run to the target position on the reconstructed virtual running map according to the running route.

The vehicle-mounted ground interaction device may be a vehicle-mounted secondary radar,

the information transmitted when the vehicle-mounted secondary radar and the ground equipment perform information interaction is not limited to ranging, and can also comprise information such as speed, direction, track identification codes and the like.

It needs to be further explained that, the above-mentioned vehicle-mounted secondary radar can be replaced according to the need when being implemented specifically: the ground equipment can be realized by various means such as electronic tags, radars, transponders and the like, or can be used by the mixed use of the various means.

According to the safety protection technology for the lost train after positioning, provided by the technical scheme, the detection equipment of the train is adopted to reconstruct a route map not only by purely depending on ground signals, and the possibility of collision is analyzed by combining distance information of other trains, so that route planning is carried out again, and the train operation safety is controlled.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.