Group train screening method and device, storage medium and electronic equipment

Abstract

The invention belongs to the technical field of vehicle engineering technologies, and provides a group train screening method and device, a storage medium and electronic equipment.The method comprises the steps that track circuit effective codes of trains are obtained, and group state information of the trains is obtained; screening the head of the train according to the track circuit effective code and the group state information; and screening the tail of the train according to the effective code of the track circuit and the group state information. By means of the group train screening method, the head and the tail of the train can be rapidly and accurately screened, and the screening method is suitable for application scenes under the condition that track circuits are adopted.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle engineering, and in particular relates to a method, device, storage medium and electronic equipment for screening group trains. Background Art

[0002] Train screening is divided into head screening and tail screening, which is a necessary condition for safe tracking of trains in mobile block systems. The head screening of the train is used to determine that there are no hidden cars from the section where the head of the train is located to the front boundary of the section, and the tail screening of the train is used to determine that there are no hidden cars from the section where the tail of the train is located to the rear boundary of the section. The driving permit can only be calculated after the train completes the head screening. After the train completes the tail screening, the end point of the driving permit of the rear train can be extended to the tail of the train and tracked according to the mobile block mode, otherwise it can only be tracked according to automatic block or fixed block.

[0003] For the CBTC train control system, the train head screening methods are divided into automatic head screening, automatic tail screening and manual head screening. The automatic head screening mainly determines that the train has automatically completed the head screening by judging that the distance from the minimum safe front end of the train to the front boundary of the axle counting section is less than the minimum vehicle length, and the adjacent axle counting section in front of the train is idle. The automatic tail screening mainly determines that the train has automatically completed the tail screening by judging that the distance from the minimum safe front end of the train to the rear boundary of the axle counting section is less than the minimum vehicle length, and the adjacent axle counting section behind the rear of the train is idle. The manual head screening is a head screening method in which the device sends a front screening request to the driver, and the driver confirms that there is no hidden car in front and notifies the device through observation.

[0004] For CBTC train control systems, axle counting is mostly used to check train occupancy, and the train screening method is also based on axle counting. For national railways and heavy-duty railways, track circuits are mostly used to check train occupancy. For track section division, electrical insulation nodes or mechanical insulation nodes are mostly used. The train occupancy check at the insulation node is less accurate than axle counting. Since national railways and heavy-duty railways use track circuits, the above-mentioned train screening method using axle counting cannot meet the application scenario of train screening under the conditions of using track circuits.

[0005] Therefore, how to meet the train screening method under the conditions of using track circuits is a technical problem to be solved. Summary of the invention

[0006] Based on this, it is necessary to provide a screening method, device, storage medium and electronic device for group trains to address the defect that the existing screening method cannot be applied to application scenarios under track circuit conditions.

[0007] In a first aspect, an embodiment of the present invention provides a method for selecting a group train, the method comprising: Obtain the valid track circuit code of the train and obtain the group status information of the train; Screening the head of the train according to the track circuit valid code and the group status information; The tail of the train is screened according to the track circuit validity code and the group status information.

[0008] Optionally, screening the head of the train according to the track circuit valid code and the group status information includes: In the case where the group status information shows that the current train is the head train, if its track circuit valid code is received, it is determined that the head train screening of the current train is successful; or, When the group status information shows that the current train is the head train, if its track circuit valid code is not received, it is determined that the head screening of the current train has failed.

[0009] Optionally, screening the head of the train according to the track circuit valid code and the group status information includes: In the case where the group status information shows that the current train is the middle train, if its track circuit valid code is received, it is determined that the head screening of the current train is successful.

[0010] Optionally, the screening of the head of the train according to the track circuit valid code and the group status information further includes: Acquire the first positioning information of the current train, and acquire that the immediately preceding train of the current train is the first train; When the current condition meets the first preset condition, if it is determined that: the immediately preceding vehicle of the current train is the first train, the immediately following vehicle of the first train is the current train, and there is no other train between the first train and the current train, then it is determined that the head screening of the current train is successful; or, When the current condition meets the first preset condition, if it is determined that the current train has one of the first positional relationships with the first train, it is determined that the head screening of the current train has failed; The first position relationship between the current train and the first train includes: the current train is adjacent to a preceding train which is not the first train; or, The next following train of the first train is not the current train; or, There are other trains between the first train and the current train; The first preset condition includes: the group status information shows that the current train is the middle train, the first positioning information shows that the immediate preceding train of the current train is in the same track circuit section as the current train, and the current train cannot receive its track circuit valid code.

[0011] Optionally, screening the tail of the train according to the track circuit valid code and the group status information includes: When the group status information shows that the current train is the head train and there is no following train, the first operation is performed to filter the tail of the current train: Executing the first operation to screen the tail of the current train includes: Recording the status data of the current train being in the first physical section of 3G; When it is determined according to the state data that the current train has traveled to the second physical section of 9DG and the minimum safe rear end has left the first physical section of 3G, the slow absorption characteristic data of the relay of the track circuit from occupation to clearing are obtained; If it is determined according to the slow absorption characteristic data that the relay clears the 3G first physical section within the maximum slow absorption time, it is determined that the tail screening of the current train is successful; or, When the group status information shows that the current train is the head train and there is no following train, the second operation is performed to filter the tail of the current train: The second operation is performed to filter the tail of the current train, including: Recording the status data of the current train being in the first physical section of 3G; When it is determined according to the status data that the current train has traveled to the second physical section of 9DG and the minimum safe rear end has left the first physical section of 3G, a plurality of key parameters are obtained, wherein the plurality of key parameters are used to determine whether the tail screening of the current train is successful, and the plurality of key parameters at least include: the current speed of the current train, the communication delay time of the current train communicating with the ground, the minimum length of the current train, and the distance between the minimum safe rear end of the current train and the rear boundary of the section where the minimum safe rear end of the current train is located; Determine, based on the communication delay time and the current speed of the current train, the travel distance of the current train within the communication delay time range; Add the minimum length of the current train and the travel distance of the current train to obtain the added distance; If the distance between the minimum safe rear end of the current train and the rear boundary of the section where the train is located is less than the added distance, it is determined that the tail screening of the current train is successful.

[0012] Optionally, screening the tail of the train according to the track circuit valid code and the group status information includes: When the group status information shows that the current train is the middle train, the following train of the current train is the second train, and the current condition meets the second preset condition, if it is determined that the following train of the current train is the second train, and the following train of the second train is the current train, and there is no other train between the current train and the second train, then it is determined that the tail screening of the current train is successful; or, When the group status information shows that the current train is the middle train, the following train of the current train is the second train, and the current condition meets the second preset condition, if it is determined that there is one of the second positional relationships between the current train and the second train, it is determined that the tail screening of the current train fails; The second position relationship between the current train and the second train includes: the current train is adjacent to a following train which is not the second train; or, The second train is next to the preceding train which is not the current train; or, There are other trains between the current train and the second train; The second preset condition includes: the current train and the second train are in the same track circuit section, and the second train cannot receive its track circuit valid code.

[0013] Optionally, screening the tail of the train according to the track circuit valid code and the group status information includes: In the case where the group status information shows that the current train is the head train or the middle train, and the train immediately following the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that: there are no other trains in the section where the minimum safe rear end of the current train is located and in the rear adjacent section of the section where the minimum safe rear end is located, it is determined that the tail screening of the current train is successful; or, In the case where the group status information shows that the current train is the head train or the middle train, and the next train after the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that the next train in the section where the minimum safe rear end of the current train is located is the fourth train, and the fourth train is not the next train after the current train, it is determined that the tail screening of the current train has failed; or, When the group status information shows that the current train is the lead car or the middle car, and the immediate rear car of the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that the immediate rear train in the rear adjacent section of the section where the current minimum safe rear end is located is the fifth train, and the fifth train is not the immediate rear car of the current train, then it is determined that the rear screening of the current train has failed.

[0014] In a second aspect, an embodiment of the present invention provides a screening device for a group of trains, the device comprising: An acquisition module is used to acquire the valid code of the track circuit of the train and the group status information of the train; A first screening module, used for screening the head of the train according to the track circuit valid code and the group status information; The second screening module is used to screen the tail of the train according to the track circuit validity code and the group status information.

[0015] In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes instructions, and when the instructions are executed on an electronic device, the electronic device executes any one of the methods of the first aspect above.

[0016] In a fourth aspect, an embodiment of the present invention provides an electronic device, one or more processors, and a memory, wherein the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the electronic device to execute a method as described in any one of the first aspects above.

[0017] In an embodiment of the present invention, a valid code of a track circuit of a train is obtained, and group status information of the train is obtained; the head of the train is screened according to the valid code of the track circuit and the group status information; and the tail of the train is screened according to the valid code of the track circuit and the group status information. The screening method for group trains provided in an embodiment of the present invention can quickly and accurately screen the head of the train and the tail of the train according to the valid code of the track circuit and the group status information; and the screening method can be a train screening method under track circuit conditions, which is applicable to a wider range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By referring to the following drawings, a more complete understanding of the exemplary embodiments of the present invention can be obtained. The drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the drawings, the same reference numerals generally represent the same components or steps.

[0019] Figure 1 A flowchart of a method for selecting a group train according to an exemplary embodiment of the present invention; Figure 2 A schematic diagram of screening the head of a train; Figure 3 Another schematic diagram for screening the head of a train; Figure 4Another schematic diagram for screening the head of a train; Figure 5 A schematic diagram of screening the rear of a train; Figure 6 Another schematic diagram of screening the rear of a train; Figure 7 Another schematic diagram for screening the rear of a train; Figure 8 It is a schematic structural diagram of a screening device 400 for a group train provided according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0020] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0021] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present invention should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0022] In addition, the terms "first" and "second" etc. are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, product or equipment that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or equipment.

[0023] Embodiments of the present invention provide a method and device for selecting a group train, an electronic device, and a computer-readable medium, which are described below in conjunction with the accompanying drawings.

[0024] The screening method provided by the embodiment of the present invention can be applied to application scenarios using track circuit conditions. The main working states of the track circuit are adjustment state, shunt state, and broken track state. The adjustment state refers to when the track circuit is not occupied by a locomotive or vehicle, regardless of any unfavorable power supply and weather conditions, the relay at the receiving end is in an energized state, and sends out information that the track circuit section is idle. The shunt state refers to when the track circuit is occupied by a locomotive or vehicle, regardless of any unfavorable power supply and weather conditions, the relay at the receiving end is in a demagnetized state, and sends out information that the track circuit section is occupied. The broken track state refers to when any part of the track circuit fails, the relay at the receiving end is in a demagnetized state, and a fault message is sent. When the track circuit is in the shunt state, the locomotive receives the carrier frequency and low frequency (i.e., the valid code) of the track circuit to determine how many track sections are idle in front of the train.

[0025] Please refer to Figure 1 , which shows a flow chart of a method for screening group trains provided in some embodiments of the present invention, such as Figure 1 As shown, the screening method of the group train may include the following steps: Step S101: Acquire the valid code of the track circuit of the train, and acquire the group status information of the train.

[0026] In step S101, the group status information of the train includes the leading car, the middle car, and the last car. If the group status information of the train is displayed as the leading car, it means that there is no immediate preceding car; if the group status information of the train is displayed as the middle car, it means that there is an immediate preceding car and an immediate following car; if the group status information of the train is displayed as the last car, it means that there is an immediate preceding car but no immediate following car.

[0027] In actual application scenarios, if the current train receives a valid code for its track circuit, it is determined that there are no other trains at the boundary ahead of the current train to the track circuit section; if the current train does not receive a valid code for its track circuit, it is considered that there are other trains at the boundary ahead of the train to the track circuit section.

[0028] Step S102: Screen the head of the train according to the track circuit validity code and group status information.

[0029] In one example, if the current train is the lead train, there are two situations: The first case: According to the track circuit valid code and group status information, the head of the train is screened, including the following steps: When the group status information shows that the current train is the head train, if a valid track circuit code is received, it is determined that the head screening of the current train is successful.

[0030] The second case: According to the track circuit valid code and group status information, the head of the train is screened, including the following steps: When the group status information shows that the current train is the head train, if its track circuit valid code is not received, it is determined that the head screening of the current train has failed.

[0031] like Figure 2 The figure shows a schematic diagram of screening the head of a train.

[0032] like Figure 2 As shown, train 1 is at 3G, and the train reports that it is the lead train. If the train reports that it has received a valid track circuit code, the train has completed the lead screening; if the train reports that it has not received a valid track circuit code, the train has not completed the lead screening.

[0033] In one example, if the current train is the middle train, there are several situations as follows: The first case: According to the track circuit valid code and group status information, the head of the train is screened, including the following steps: When the group status information shows that the current train is the middle train, if its track circuit valid code is received, it is determined that the head screening of the current train is successful.

[0034] like Figure 3 Shown is another schematic diagram of screening the head of a train.

[0035] like Figure 3 As shown, the group status of Train 2 is the middle car, Train 2 is on 3G, and when it receives the valid track circuit code, it is determined that Train 2 has completed the first screening.

[0036] The second case: screening the head of the train according to the track circuit valid code and group status information, also includes the following steps: Acquire the first positioning information of the current train, and acquire that the immediately preceding train of the current train is the first train; When the current condition meets the first preset condition, if it is determined that: the immediately preceding vehicle of the current train is the first train, the immediately following vehicle of the first train is the current train, and there is no other train between the first train and the current train, then it is determined that the head selection of the current train is successful; The first preset condition includes: the group status information shows that the current train is the middle train, the first positioning information shows that the immediate preceding train of the current train is in the same track circuit section as the current train, and the current train cannot receive its track circuit valid code.

[0037] The third case: screening the head of the train according to the track circuit valid code and group status information, further comprising the following steps: Acquire the first positioning information of the current train, and acquire that the immediately preceding train of the current train is the first train; When the current conditions meet the first preset conditions, if it is determined that the current train has one of the first position relationships with the first train, it is determined that the head screening of the current train has failed; the first preset conditions include: the group status information shows that the current train is the middle train, the first positioning information shows that the immediate preceding train of the current train is in the same track circuit section as the current train, and the current train cannot receive its track circuit valid code.

[0038] In actual application scenarios, the first position relationship between the current train and the first train includes the following situations: The first case: the current train is adjacent to the preceding train which is not the first train.

[0039] The second situation: the next following train of the first train is not the current train.

[0040] The third situation: there are other trains between the first train and the current train.

[0041] like Figure 4 Shown is another schematic diagram of screening the head of a train.

[0042] like Figure 4 As shown, the group status of Train 2 is the middle car, Train 2 and Train 1 are in the same track circuit section, and Train 2 cannot receive the valid track circuit code.

[0043] If Train 2 reports that the immediately preceding vehicle in the group is Train 1, and Train 1 reports that the immediately following vehicle is Train 2, and there are no other trains before Train 2 and Train 1, then it is determined that Train 2 has completed the first screening.

[0044] If train 2 reports that the immediately preceding vehicle in the group is not train 1, or train 1 reports that the immediately following vehicle is not train 2, or there are other trains between train 2 and train 1, it is determined that train 2 has not completed the first screening.

[0045] Step S103: Screen the tail of the train according to the track circuit validity code and group status information.

[0046] In one example, if the current train is the leading train and there is no following train, there are two situations to determine whether the tail screening of the current train is successful, as described below: The first case: According to the track circuit valid code and group status information, the tail of the train is screened, including the following steps: When the group status information shows that the current train is the head train and there is no following train, the first operation is performed to filter the tail of the current train: Executing the first operation to screen the tail of the current train includes: Recording the status data of the current train being in the first physical section of 3G; When it is determined according to the status data that the current train has traveled to the second physical section of 9DG and the minimum safe rear end has left the first physical section of 3G, the slow absorption characteristic data of the relay of the track circuit from occupation to clearing are obtained; If it is determined according to the slow-suction characteristic data that the relay is within the maximum slow-suction time and the 3G first physical section is cleared, it is determined that the tail screening of the current train is successful.

[0047] like Figure 5 FIG. 1 is a schematic diagram showing screening of the rear of a train.

[0048] like Figure 5 As shown, train 2 is the head car of the group. When train 2 is in the first physical section of 3G, it is judged that the train has no tail screen and the status of the first physical section of 3G is recorded. After train 2 travels to the second physical section of 9DG and the minimum safe rear end leaves the first physical section of 3G, according to the slow absorption characteristics of the track circuit relay from occupation to clearing, the first physical section of 3G is cleared within the maximum slow absorption time of the relay, and it is judged that the tail screen of train 2 is completed.

[0049] The second case: According to the track circuit valid code and group status information, the tail of the train is screened, including the following steps: When the group status information shows that the current train is the head train and there is no following train, the second operation is performed to filter the tail of the current train: The second operation is performed to filter the tail of the current train, including: Recording the status data of the current train being in the first physical section of 3G; When it is determined according to the status data that the current train has traveled to the second physical section of 9DG and the minimum safe rear end has left the first physical section of 3G, a plurality of key parameters are obtained, and the plurality of key parameters are used to determine whether the tail screening of the current train is successful. The plurality of key parameters at least include: the current speed of the current train, the communication delay time of the current train communicating with the ground, the minimum length of the current train, and the distance between the minimum safe rear end of the current train and the rear boundary of the section where the minimum safe rear end of the current train is located; Based on the communication delay time and the current speed of the current train, determine the travel distance of the current train within the communication delay time range; Add the minimum length of the current train and the travel distance of the current train to obtain the added distance; If the distance between the minimum safe rear end of the current train and the rear boundary of the section where it is located is less than the added distance, it is determined that the tail screening of the current train is successful.

[0050] like Figure 5As shown, train 2 is the head car of the group. When train 2 is in the first physical section of 3G, it is determined that the train has no tail screen and the status of the first physical section of 3G is recorded. After the minimum safe rear end of train 2 leaves the first physical section of 3G, the following formula (1) is used to determine whether the train has completed the tail screen, as described below: Formula (1); In the above formula (1), is the distance between the current train's minimum safe rear end and the rear boundary of the section where it is located. is the communication delay time between the current train and the ground. is the current speed of the current train, is the minimum length of the current train.

[0051] The process of judging the train's completion of the tail screen by the above formula (1) is as follows: Based on the communication delay time and the current speed of the current train , determine the current train communication delay time The distance travelled by the current train within the range; the minimum length of the current train Add the distance traveled by the current train to get the added distance; if the distance between the current train's minimum safe rear end and the rear boundary of the section is If it is less than the added distance, it is determined that the tail screening of the current train is successful.

[0052] In one example, if the current train is the middle train and the following train of the current train is the second train, there are two cases to determine whether the tail screening of the current train is successful, as described below: In the first case, the tail of the train is screened according to the track circuit valid code and group status information, including the following steps: When the group status information shows that the current train is the middle train, the following train of the current train is the second train, and the current condition meets the second preset condition, if it is determined that: the train immediately following the current train is the second train, and the train immediately preceding the second train is the current train, and there is no other train between the current train and the second train, then it is determined that the tail screening of the current train is successful; the second preset condition includes: the current train and the second train are in the same track circuit section, and the second train cannot receive its track circuit valid code.

[0053] In the second case, the tail of the train is screened according to the track circuit valid code and group status information, including the following steps: When the group status information shows that the current train is the middle train, the following train of the current train is the second train, and the current condition meets the second preset condition, if it is determined that there is one of the second position relationships between the current train and the second train, it is determined that the tail screening of the current train has failed; the second preset condition includes: the current train and the second train are in the same track circuit section, and the second train cannot receive its track circuit valid code.

[0054] In actual application scenarios, the second position relationship between the current train and the second train includes the following situations: The first case: the current train is adjacent to the following train which is not the second train.

[0055] The second situation: the second train is adjacent to the preceding train but is not the current train.

[0056] The third situation: there are other trains between the current train and the second train.

[0057] like Figure 6 FIG. 2 is another schematic diagram of screening the rear of a train.

[0058] As shown in Figure 6, the group status of Train 1 is the leading car, and there is a report of the following car. Train 2 and Train 1 are in the same track circuit section, and Train 2 cannot receive the valid track circuit code.

[0059] If train 1 reports that the next car in the group is train 2, and train 2 reports that the next car in the group is train 1, and there is no other train between train 2 and train 1, then it is determined that train 1 has completed the tail screening.

[0060] If train 1 reports that the immediately following vehicle in the group is not train 2, or train 2 reports that the immediately preceding vehicle is not train 1, or there are other trains between train 2 and train 1, it is determined that train 1 has not completed the tail screening. In one example, if the current train is the leading train or the middle train, and the train immediately following the current train is the third train, and the second positioning information of the third train is not obtained, there are two cases to determine whether the tail screening of the current train is successful, as described below: In the first case, the tail of the train is screened according to the track circuit valid code and group status information, including the following steps: When the group status information shows that the current train is the lead car or the middle car, and the car immediately behind the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that there are no other trains in the section where the minimum safe rear end of the current train is located and in the adjacent section behind the section where the train is located, then it is determined that the tail screening of the current train is successful.

[0061] The second situation: when the group status information shows that the current train is the lead car or the middle car, and the immediate rear car of the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that the immediate rear train in the section where the minimum safe rear end of the current train is located is the fourth train, and the fourth train is not the immediate rear car of the current train, then it is determined that the rear screening of the current train has failed.

[0062] The third situation: when the group status information shows that the current train is the lead car or the middle car, and the immediate rear car of the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that the immediate rear train in the adjacent section behind the section where the current minimum safe rear end is located is the fifth train, and the fifth train is not the immediate rear car of the current train, then it is determined that the rear screening of the current train has failed.

[0063] like Figure 7 As shown, it is another schematic diagram of screening the rear of a train.

[0064] like Figure 7 As shown, the group status of train 1 is the head car or the middle car, and there is a report of the immediate following car train 2. At this time, train 2 has not reported the train position, and there are no other trains in the section where the minimum safe rear end of train 1 is located and the adjacent section behind it, then set train 1 to complete the tail screen. If there is a train in the section where the minimum safe rear end of train 1 is located or the adjacent section behind it, and the train is not the immediate following car reported by train 1, then set train 1 to have no tail screen.

[0065] The method for screening group trains provided in an embodiment of the present invention obtains the valid code of the track circuit of the train, and obtains the group status information of the train; the head of the train is screened according to the valid code of the track circuit and the group status information; and the tail of the train is screened according to the valid code of the track circuit and the group status information. The method for screening group trains provided in an embodiment of the present invention can quickly and accurately screen the head of the train and the tail of the train according to the valid code of the track circuit and the group status information; and the screening method can be a train screening method under the condition of track circuit, which is applicable to a wider range of application scenarios.

[0066] In the above embodiment, a method for screening a group train is provided, and correspondingly, the present invention also provides a device for screening a group train. The device for screening a group train provided in the embodiment of the present invention can implement the above method for screening a group train, and the device for screening a group train can be implemented by software, hardware, or a combination of software and hardware. For example, the device for screening a group train can include integrated or separate functional modules or units to perform the corresponding steps in the above methods.

[0067] Please refer to Figure 8, which shows a schematic diagram of a screening device for a group train provided by some embodiments of the present invention. Since the device embodiment is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described below is only illustrative.

[0068] like Figure 8 As shown, the screening device 800 of the group train may include: The acquisition module 801 is used to acquire the track circuit validity code of the train and acquire the group status information of the train; The first screening module 802 is used to screen the head of the train according to the track circuit valid code and the group status information; The second screening module 803 is used to screen the tail of the train according to the track circuit validity code and the group status information.

[0069] In some implementations of the embodiments of the present invention, the first screening module 802 is specifically used to: When the group status information shows that the current train is the head train, if its track circuit valid code is received, it is determined that the head train screening of the current train is successful; or, When the group status information shows that the current train is the head train, if its track circuit valid code is not received, it is determined that the head screening of the current train has failed.

[0070] In some implementations of the embodiments of the present invention, the first screening module 802 is specifically used to: When the group status information shows that the current train is the middle train, if its track circuit valid code is received, it is determined that the head screening of the current train is successful.

[0071] In some implementations of the embodiments of the present invention, the first screening module 802 is further specifically used for: Acquire the first positioning information of the current train, and acquire that the immediately preceding train of the current train is the first train; When the current condition meets the first preset condition, if it is determined that: the immediately preceding vehicle of the current train is the first train, the immediately following vehicle of the first train is the current train, and there is no other train between the first train and the current train, then it is determined that the head screening of the current train is successful; or, When the current condition meets the first preset condition, if it is determined that the current train has one of the first positional relationships with the first train, it is determined that the head screening of the current train has failed; The first position relationship between the current train and the first train includes: the current train is adjacent to a preceding train which is not the first train; or, The next train after the first train is not the current train; or, There are other trains between the first train and the current train; The first preset condition includes: the group status information shows that the current train is the middle train, the first positioning information shows that the immediate preceding train of the current train is in the same track circuit section as the current train, and the current train cannot receive its track circuit valid code.

[0072] In some implementations of the embodiments of the present invention, the second screening module 803 is specifically used to: When the group status information shows that the current train is the head train and there is no following train, the first operation is performed to filter the tail of the current train: Executing the first operation to screen the tail of the current train includes: Recording the status data of the current train being in the first physical section of 3G; When it is determined according to the status data that the current train has traveled to the second physical section of 9DG and the minimum safe rear end has left the first physical section of 3G, the slow absorption characteristic data of the relay of the track circuit from occupation to clearing are obtained; If it is determined according to the slow suction characteristic data that the relay is within the maximum slow suction time, the 3G first physical section is cleared, then it is determined that the tail screening of the current train is successful; or, When the group status information shows that the current train is the head train and there is no following train, the second operation is performed to filter the tail of the current train: The second operation is performed to filter the tail of the current train, including: Recording the status data of the current train being in the first physical section of 3G; When it is determined according to the status data that the current train has traveled to the second physical section of 9DG and the minimum safe rear end has left the first physical section of 3G, a plurality of key parameters are obtained, and the plurality of key parameters are used to determine whether the tail screening of the current train is successful. The plurality of key parameters at least include: the current speed of the current train, the communication delay time of the current train communicating with the ground, the minimum length of the current train, and the distance between the minimum safe rear end of the current train and the rear boundary of the section where the minimum safe rear end of the current train is located; Based on the communication delay time and the current speed of the current train, determine the travel distance of the current train within the communication delay time range; Add the minimum length of the current train and the travel distance of the current train to obtain the added distance; If the distance between the minimum safe rear end of the current train and the rear boundary of the section where it is located is less than the added distance, it is determined that the tail screening of the current train is successful.

[0073] In some implementations of the embodiments of the present invention, the second screening module 803 is specifically used to: When the group status information shows that the current train is the middle train, the following train of the current train is the second train, and the current condition meets the second preset condition, if it is determined that the following train of the current train is the second train, and the following train of the second train is the current train, and there is no other train between the current train and the second train, then it is determined that the tail screening of the current train is successful; or, When the group status information shows that the current train is the middle train, the following train of the current train is the second train, and the current condition meets the second preset condition, if it is determined that the current train has one of the second positional relationships with the second train, it is determined that the tail screening of the current train fails; The second position relationship between the current train and the second train includes: the current train is adjacent to a subsequent train which is not the second train; or, The second train is immediately adjacent to the preceding train which is not the current train; or There are other trains between the current train and the second train; The second preset condition includes: the current train and the second train are in the same track circuit section, and the second train cannot receive its track circuit valid code.

[0074] In some implementations of the embodiments of the present invention, the second screening module 803 is specifically used to: When the group status information shows that the current train is the head train or the middle train, and the train immediately following the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that there are no other trains in the section where the minimum safe rear end of the current train is located and in the rear adjacent section of the section where the minimum safe rear end of the current train is located, it is determined that the tail screening of the current train is successful; or, In the case where the group status information shows that the current train is the head train or the middle train, and the next train after the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that the next train in the section where the minimum safe rear end of the current train is located is the fourth train, and the fourth train is not the next train after the current train, it is determined that the tail screening of the current train has failed; or, When the group status information shows that the current train is the lead car or the middle car, and the immediate following car of the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that the immediate following train in the rear adjacent section of the section where the current minimum safe rear end is located is the fifth train, and the fifth train is not the immediate following car of the current train, then it is determined that the rear screening of the current train has failed.

[0075] In some implementations of the embodiments of the present invention, in some implementations of the embodiments of the present invention, the group train screening device 800 provided by the embodiments of the present invention is based on the same inventive concept as the group train screening method provided by the aforementioned embodiments of the present invention and has the same beneficial effects.

[0076] According to another embodiment, there is also provided a computer-readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to execute a combination of Figure 1 The method described.

[0077] According to another embodiment of the present invention, there is also provided an electronic device, comprising a memory and a processor, wherein the memory stores an executable code, and when the processor executes the executable code, the Figure 1 The method described.

[0078] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the present invention can be implemented by hardware, software, firmware or any combination thereof. When implemented by software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for selecting a group train, characterized in that: The method comprises: Obtain the valid track circuit code of the train and obtain the group status information of the train; Screening the head of the train according to the track circuit valid code and the group status information; The tail of the train is screened according to the track circuit validity code and the group status information.

2. The screening method according to claim 1, characterized in that The screening of the head of the train according to the track circuit valid code and the group status information includes: In the case where the group status information shows that the current train is the head train, if its track circuit valid code is received, it is determined that the head train screening of the current train is successful; or, When the group status information shows that the current train is the head train, if its track circuit valid code is not received, it is determined that the head screening of the current train has failed.

3. The screening method according to claim 1, characterized in that The screening of the head of the train according to the track circuit valid code and the group status information includes: In the case where the group status information shows that the current train is the middle train, if its track circuit valid code is received, it is determined that the head screening of the current train is successful.

4. The screening method according to claim 3, characterized in that The screening of the head of the train according to the track circuit valid code and the group status information further includes: Acquire the first positioning information of the current train, and acquire that the immediately preceding train of the current train is the first train; When the current condition meets the first preset condition, if it is determined that: the immediately preceding vehicle of the current train is the first train, the immediately following vehicle of the first train is the current train, and there is no other train between the first train and the current train, then it is determined that the head screening of the current train is successful; or, When the current condition meets the first preset condition, if it is determined that the current train has one of the first positional relationships with the first train, it is determined that the head screening of the current train has failed; The first position relationship between the current train and the first train includes: the current train is adjacent to a preceding train which is not the first train; or, The next following train of the first train is not the current train; or, There are other trains between the first train and the current train; The first preset condition includes: the group status information shows that the current train is the middle train, the first positioning information shows that the immediate preceding train of the current train is in the same track circuit section as the current train, and the current train cannot receive its track circuit valid code.

5. The screening method according to claim 1, characterized in that The screening of the tail of the train according to the track circuit valid code and the group status information includes: When the group status information shows that the current train is the head train and there is no following train, the first operation is performed to filter the tail of the current train: Executing the first operation to screen the tail of the current train includes: Recording the status data of the current train being in the first physical section of 3G; When it is determined according to the state data that the current train has traveled to the second physical section of 9DG and the minimum safe rear end has left the first physical section of 3G, the slow absorption characteristic data of the relay of the track circuit from occupation to clearing are obtained; If it is determined according to the slow absorption characteristic data that the relay clears the 3G first physical section within the maximum slow absorption time, it is determined that the tail screening of the current train is successful; or, When the group status information shows that the current train is the head train and there is no following train, the second operation is performed to filter the tail of the current train: The second operation is performed to filter the tail of the current train, including: Recording the status data of the current train being in the first physical section of 3G; When it is determined according to the status data that the current train has traveled to the second physical section of 9DG and the minimum safe rear end has left the first physical section of 3G, a plurality of key parameters are obtained, wherein the plurality of key parameters are used to determine whether the tail screening of the current train is successful, and the plurality of key parameters at least include: the current speed of the current train, the communication delay time of the current train communicating with the ground, the minimum length of the current train, and the distance between the minimum safe rear end of the current train and the rear boundary of the section where the minimum safe rear end of the current train is located; Determine, based on the communication delay time and the current speed of the current train, the travel distance of the current train within the communication delay time range; Add the minimum length of the current train and the travel distance of the current train to obtain the added distance; If the distance between the minimum safe rear end of the current train and the rear boundary of the section where the train is located is less than the added distance, it is determined that the tail screening of the current train is successful.

6. The screening method according to claim 1, characterized in that The screening of the tail of the train according to the track circuit valid code and the group status information includes: When the group status information shows that the current train is the middle train, the following train of the current train is the second train, and the current condition meets the second preset condition, if it is determined that the following train of the current train is the second train, and the following train of the second train is the current train, and there is no other train between the current train and the second train, then it is determined that the tail screening of the current train is successful; or, When the group status information shows that the current train is the middle train, the following train of the current train is the second train, and the current condition meets the second preset condition, if it is determined that there is one of the second positional relationships between the current train and the second train, it is determined that the tail screening of the current train fails; The second position relationship between the current train and the second train includes: the current train is adjacent to a following train which is not the second train; or, The second train is next to the preceding train which is not the current train; or, There are other trains between the current train and the second train; The second preset condition includes: the current train and the second train are in the same track circuit section, and the second train cannot receive its track circuit valid code.

7. The screening method according to claim 1, characterized in that The screening of the tail of the train according to the track circuit valid code and the group status information includes: In the case where the group status information shows that the current train is the head train or the middle train, and the train immediately following the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that: there are no other trains in the section where the minimum safe rear end of the current train is located and in the rear adjacent section of the section where the minimum safe rear end is located, it is determined that the tail screening of the current train is successful; or, In the case where the group status information shows that the current train is the head train or the middle train, and the next train after the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that the next train in the section where the minimum safe rear end of the current train is located is the fourth train, and the fourth train is not the next train after the current train, it is determined that the tail screening of the current train has failed; or, When the group status information shows that the current train is the lead car or the middle car, and the immediate rear car of the current train is the third train, and the second positioning information of the third train has not been obtained, if it is determined that the immediate rear train in the rear adjacent section of the section where the current minimum safe rear end is located is the fifth train, and the fifth train is not the immediate rear car of the current train, then it is determined that the rear screening of the current train has failed.

8. A screening device for a group train, characterized in that: The device comprises: An acquisition module is used to acquire the valid code of the track circuit of the train and the group status information of the train; A first screening module, used for screening the head of the train according to the track circuit valid code and the group status information; The second screening module is used to screen the tail of the train according to the track circuit validity code and the group status information.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium comprises a computer program, and when the computer program is executed on an electronic device, the electronic device executes the method according to any one of claims 1 to 7.

10. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the processor and the memory are coupled, and the memory is used to store a computer program. When the processor executes the computer program, the electronic device executes the method according to any one of claims 1 to 7.

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