CN114084202A - Train tail screening method and device and storage medium - Google Patents
Train tail screening method and device and storage medium Download PDFInfo
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- CN114084202A CN114084202A CN202010760775.4A CN202010760775A CN114084202A CN 114084202 A CN114084202 A CN 114084202A CN 202010760775 A CN202010760775 A CN 202010760775A CN 114084202 A CN114084202 A CN 114084202A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
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- B61L1/16—Devices for counting axles; Devices for counting vehicles
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Abstract
The application provides a train tail screening method, a train tail screening device and a storage medium, wherein the method comprises the following steps: determining whether the train to be screened meets a preset tail screening condition, wherein the preset tail screening condition is associated with at least one of train suspension, axle counting state acquisition delay and train-ground communication delay, the train suspension and/or train-ground communication delay is associated with a distance judgment condition included in the preset tail screening condition, and the train-ground communication delay is associated with a section idle judgment condition included in the preset tail screening condition; when the train to be screened meets the preset tail screening condition, determining that the tail of the train to be screened passes the screening; and when the train to be screened does not meet the preset tail screening condition, determining that the tail screening of the train to be screened does not pass. The train tail screening condition that this application adopted considers train dangling, meter axle state acquisition delay and train-ground communication delay in at least one item, makes train tail screening result more accurate to make train tail screening more reasonable safer.
Description
Technical Field
The application relates to the technical field of vehicle control, in particular to a train tail screening method, a train tail screening device and a storage medium.
Background
The existing train control technology generally screens trains when the trains run, and hidden trains possibly existing in front of and behind the trains are eliminated. Screening typically includes head of train screening and tail of train screening. The existing train tail screening method only considers whether the distance between a screened train and the starting point of a physical section where the screened train is located is smaller than the minimum train length of line screening and whether an adjacent physical section behind the physical section where the screened train tail is located is idle or not when the train tail is screened.
The existing train tail screening method has the following problems: the distance (called as 'suspension') between the last axle counting detection plate at the tail of the hidden train and the tail of the train is not considered, so that under the condition of short communication delay, the last axle counting detection plate at the tail of the hidden train at the rear of the train to be screened is driven out of a rear adjacent physical section but does not completely enter the physical section where the train to be screened is located, and the rear adjacent physical section is idle at the moment, so that the tail screening is misjudged successfully; the train-ground communication delay is not considered, so that the condition that the train tail position to be screened sent by a Zone Controller (Zone Controller, abbreviated as ZC) through a Vehicle-mounted Controller (Vehicle On-Board Controller, abbreviated as VOBC) meets the condition that the distance from the starting point of the physical section to the train tail position to be screened is less than the minimum train length of the line is actually not met; the time delay of the axle counting state acquisition is not considered, the rear adjacent physical section has the train running in but the ZC receives that the physical section is idle, so that the tail screening condition that the rear adjacent physical section is idle is judged successfully.
Disclosure of Invention
The present application has been made to solve at least one of the above problems. According to an aspect of the present application, there is provided a train tail screening method, the method including: determining whether a train to be screened meets a preset tail screening condition, wherein the preset tail screening condition is associated with at least one of train suspension, axle counting state acquisition delay and train-ground communication delay, the train suspension and/or the train-ground communication delay are/is associated with a distance judgment condition included in the preset tail screening condition, and the train-ground communication delay is associated with a section idle judgment condition included in the preset tail screening condition; when the train to be screened meets the preset tail screening condition, determining that the tail of the train to be screened passes screening; and when the train to be screened does not meet the preset tail screening condition, determining that the tail screening of the train to be screened does not pass.
According to another aspect of the present application, there is provided an end-of-train screening apparatus comprising a memory and a processor, the memory having stored thereon a computer program for execution by the processor, the computer program, when executed by the processor, causing the processor to perform the steps of: determining whether a train to be screened meets a preset tail screening condition, wherein the preset tail screening condition is associated with at least one of train suspension, axle counting state acquisition delay and train-ground communication delay, the train suspension and/or the train-ground communication delay are/is associated with a distance judgment condition included in the preset tail screening condition, and the train-ground communication delay is associated with a section idle judgment condition included in the preset tail screening condition; when the train to be screened meets the preset tail screening condition, determining that the tail of the train to be screened passes screening; and when the train to be screened does not meet the preset tail screening condition, determining that the tail screening of the train to be screened does not pass.
In one embodiment of the present application, the preset tail-screening condition includes at least two of: a distance determination condition, the distance determination condition including: the distance from the tail part of the train to be screened to the starting point of the physical section where the train to be screened is located is less than a first preset distance; a first section idle determination condition, the first section idle determination condition including: the adjacent physical section behind the physical section where the train to be screened is located is idle; a second section idle determination condition, the second section idle determination condition including: the physical section behind the starting point of the adjacent physical section behind the physical section where the train to be screened is located is idle within a second preset distance; the first preset distance is related to the minimum line screening length and is related to the overhang of the hidden train behind the train to be screened and/or the running distance of the train to be screened in the position reporting delay period, and the second preset distance is the running distance of the hidden train behind the train to be screened in the axle counting state acquisition delay period.
In one embodiment of the present application, the first preset distance is equal to any one of: subtracting the value obtained by the suspension of the hidden train behind the train to be screened from the minimum train length of the line screening; subtracting the running distance of the train to be screened in the position reporting delay period from the minimum train length of the line screening; and subtracting the suspension of the hidden train behind the train to be screened from the minimum train length for the line screening, and then subtracting the running distance of the train to be screened during the position reporting delay period.
In one embodiment of the present application, the second predetermined distance is equal to the product of the maximum speed of the train allowed by the train and the axle counting state acquisition delay.
In an embodiment of the present application, the axle counting state acquisition delay includes a sum of time occupied by the following steps: after the hidden train behind the train to be screened drives into the physical section within the second preset distance, the first axle counting detection plate crosses the initial end axle counting of the physical section within the second preset distance; detecting that a hidden train behind the train to be screened enters the physical section within the second preset distance by the starting end counting shaft of the physical section within the second preset distance, and sending a detection result to a Computer Interlocking (CI for short); the computer interlock updates the state of the physical section within the second preset distance into an occupied state, and sends the occupied state of the physical section within the second preset distance to the local station area controller; and the local station area controller receives the occupation state of the physical section within the second preset distance.
In an embodiment of the present application, when the physical segments within the second preset distance include a physical segment corresponding to a neighbor area controller calculated based on the sum of the times, the axle counting state acquisition delay is calculated as the sum of the times occupied by the following steps: after the hidden train behind the train to be screened drives into the physical section within the second preset distance, the first axle counting detection plate crosses the initial end axle counting of the physical section within the second preset distance; detecting that a hidden train behind the train to be screened enters the physical section within the second preset distance by the starting end shaft counting of the physical section within the second preset distance, and sending a detection result to a computer for interlocking; the computer interlock updates the state of the physical section within the second preset distance to an occupied state, and sends the occupied state of the physical section within the second preset distance to the adjacent station area controller; the adjacent station area controller receives the occupation state of the physical section within the second preset distance and sends the occupation state of the physical section within the second preset distance to the local station area controller; and the local station area controller receives the occupation state of the physical section within the second preset distance.
According to yet another aspect of the present application, there is provided a storage medium having stored thereon a computer program which, when executed by a processor, causes the processor to execute the above-mentioned end-of-train screening method.
According to the train tail screening method and device and the tail screening condition adopted by the storage medium, at least one of train suspension, axle counting state acquisition delay and train-ground communication delay is considered, so that the train tail screening result is more accurate, and the train tail screening is more reasonable and safer.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally represent like parts or steps.
Fig. 1 is a schematic diagram showing a tail section screening condition adopted in a conventional train tail section screening method.
Fig. 2 shows a schematic flow chart of an end-of-train screening method according to an embodiment of the present application.
Fig. 3 is a schematic diagram illustrating an example of preset tail filter conditions adopted by the train tail filter method according to the embodiment of the present application.
Fig. 4 is a schematic diagram illustrating another example of the preset tail filter condition adopted by the train tail filter method according to the embodiment of the present application.
Fig. 5 is a schematic diagram illustrating still another example of the preset tail filter condition adopted by the train tail filter method according to the embodiment of the present application.
Fig. 6 is a schematic diagram illustrating information flows during the axle counting state acquisition delay period corresponding to the second preset distance in the preset tail filter condition shown in fig. 5.
Fig. 7 is a schematic diagram illustrating still another example of the preset tail filter condition adopted by the train tail filter method according to the embodiment of the present application.
Fig. 8 is a schematic diagram illustrating information flows during the axle counting state acquisition delay period corresponding to the second preset distance in the preset tail filter condition shown in fig. 7.
Fig. 9 shows a schematic block diagram of an end-of-train screening apparatus according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, exemplary embodiments according to the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and that the present application is not limited by the example embodiments described herein. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the application described in the application without inventive step, shall fall within the scope of protection of the application.
First, a conventional end-of-train screening method is described with reference to fig. 1. Fig. 1 is a schematic diagram showing a tail section screening condition adopted in a conventional train tail section screening method. As shown in fig. 1, the tail screening conditions adopted by the existing train tail screening method include: (1) the distance from the tail of the train to be screened to the starting point A1 of the physical section A1B1 (namely the physical section with the starting point A1 and the end point B1) where the train to be screened is located is less than the minimum train length of the line screening (the minimum train length of the line screening can be simply called as the minimum train length); (2) the adjacent physical section C1A1 (namely, the physical section with the starting point of C1 and the ending point of A1) behind the physical section A1B1 at the tail part of the train to be screened is idle.
As described above, the tail screening condition adopted by the existing train tail screening method does not consider the distance (called "overhang") between the last axle counting detection plate at the tail of the hidden train and the tail of the train, so that under the condition of short communication delay, the last axle counting detection plate at the tail of the hidden train behind the train to be screened is already driven out of the rear adjacent physical section C1A1 but does not completely enter the front of the physical section A1B1 where the train to be screened is located, at this time, the rear adjacent physical section C1A1 is idle, and the tail screening is misjudged successfully; the train-ground communication delay is not considered, so that the condition that the distance from the tail position of the train to be screened, which is sent by the vehicle-mounted controller and received by the area controller, to the starting point of the physical section A1B1 is less than the minimum train length for line screening is actually not met; the axle counting state acquisition delay is not considered, the train enters the rear adjacent physical section C1A1, but the area controller receives that the physical section C1A1 is idle, so that the rear adjacent physical section C1A1 is idle, and the tail screening condition is misjudged successfully.
Based on this, the present application provides a train tail screening scheme that employs tail screening conditions that take into account at least one of train suspension, axle count state acquisition delay, and train-to-ground communication delay, which can solve at least one of the above-mentioned problems. The following describes in detail an end-of-train screening scenario according to an embodiment of the present application with reference to the accompanying drawings.
Fig. 2 shows a schematic flow diagram of an end-of-train screening method 200 according to an embodiment of the present application. As shown in fig. 2, the method 200 for screening train tail according to the embodiment of the present application may include the following steps:
in step S210, it is determined whether the train to be screened satisfies a preset tail screening condition, where the preset tail screening condition is associated with at least one of train suspension, axle counting state acquisition delay, and train-ground communication delay. Wherein the train overhang and/or the train-to-ground communication delay is associated with a distance determination condition included in the preset tail screening condition, and the train-to-ground communication delay is associated with a section idle determination condition included in the preset tail screening condition. When it is determined that the train to be screened satisfies the preset tail screening condition, the method 200 proceeds to step S220; when it is determined that the train to be screened does not satisfy the preset tail screening condition, the method 200 proceeds to step S230.
In step S220, it is determined that the train to be screened meets the preset tail screening condition, and the tail of the train to be screened passes the screening.
In step S230, it is determined that the train to be screened meets the condition that the tail screening is not preset, and the tail screening of the train to be screened does not pass.
In the embodiment of the application, when determining whether the train tail screening to be screened passes or not, the adopted preset tail screening condition takes at least one of train suspension, axle counting state acquisition delay and train-ground communication delay into consideration, so that at least one of the problems in the existing train tail screening method can be solved.
Specifically, in the embodiment of the present application, the preset tail filter condition in step S210 may include at least two of the following conditions: (1) a distance determination condition, the distance determination condition including: the distance from the tail part of the train to be screened to the starting point of the physical section where the train to be screened is located is smaller than a first preset distance; (2) a first section idle determination condition, the first section idle determination condition including: the adjacent physical section behind the physical section where the train to be screened is located is idle; (3) a second section idle determination condition, the second section idle determination condition including: and the physical section behind the starting point of the adjacent physical section behind the physical section where the train to be screened is located within a second preset distance is idle. The first preset distance is related to the minimum line screening length and is related to the overhang of a hidden train behind the train to be screened and/or the running distance of the train to be screened during the position reporting delay period; the second preset distance is the running distance of a hidden train behind the train to be screened in the axle counting state acquisition delay period.
For convenience of description, the above conditions are respectively referred to as the first condition, the second condition and the third condition, that is, in the embodiment of the present application, the preset tail filter condition in step S210 may be the following cases: (1) comprises a first condition and a second condition; (2) comprises a first condition and a third condition; (3) comprises a second condition and a third condition; (4) including a first condition, a second condition, and a third condition. No matter which of the above four cases the preset tail filter condition described in step S210 is, satisfying the preset tail filter condition means satisfying each of the conditions included in the preset tail filter condition. Some examples of the preset tail filter conditions adopted by the train tail filter method according to the embodiment of the present application are described below with reference to fig. 3 to 8.
Fig. 3 is a schematic diagram illustrating an example of preset tail filter conditions adopted by the train tail filter method according to the embodiment of the present application. As shown in fig. 3, the preset tail filter condition in this example includes the aforementioned first condition and second condition, that is, the preset tail filter condition in this example includes: (1) the distance from the tail part of the train to be screened to the starting point A2 of the physical section A2B2 (namely the physical section with the starting point A2 and the end point B2) where the train to be screened is located is less than the first preset distance L1; (2) the adjacent physical section C2A2 (namely, the physical section with the starting point of C2 and the ending point of A2) behind the physical section A2B2 where the train to be screened is located is idle. Wherein the first predetermined distance L1 is associated with a minimum line screening length and with a catenary hang of a hidden train behind the train to be screened. Specifically, the first preset distance L1 may be equal to the line screening minimum car length minus the overhang of the hidden train.
The preset tail screening condition in the example shown in fig. 3 takes train overhang into consideration, so that in the case of short communication delay, the last axle counting detection board at the tail of the train to be screened has exited the rear adjacent physical section C2A2 but has not completely entered the physical section A2B2 where the train to be screened is located, at this time, the rear adjacent physical section C2A2 is determined to be free, but the starting point A2 of the tail of the train to be screened, which is far from the physical section A2B2 where the train to be screened is located, may be greater than or equal to the first preset distance L1(L1 is the minimum train length for line screening — the overhang of the hidden train), so that the above-mentioned first condition is not met, i.e., tail screening does not pass, and misjudgment is avoided.
Fig. 4 is a schematic diagram illustrating another example of the preset tail filter condition adopted by the train tail filter method according to the embodiment of the present application. As shown in fig. 4, the preset tail filter condition in this example includes the aforementioned first condition and second condition, that is, the preset tail filter condition in this example includes: (1) the distance from the tail part of the train to be screened to the starting point A2 of a physical section A2B2 where the train to be screened is located is less than a first preset distance L1'; (2) the adjacent physical section C2A2 behind the physical section A2B2 where the train to be screened is located is free. The first preset distance L1' is related to the minimum line screening length, and is related to the overhang of the hidden train behind the train to be screened and the travel distance L0 (i.e., the difference between the actual position and the reported position) of the train to be screened during the position reporting delay. Specifically, the first preset distance L1' may be equal to the minimum train length for line screening minus the overhang of the hidden train minus the travel distance L0 of the train to be screened during the location reporting delay.
The example shown in fig. 4 illustrates a case where the preset tail filter condition takes into account train overhang and train-to-ground communication delay. The method comprises the steps that the last axle counting detection plate at the tail of a hidden train at the rear of a train to be screened is driven out of a rear adjacent physical section C2A2 but does not completely enter a physical section A2B2 where the train to be screened is located, the rear adjacent physical section C2A2 is judged to be idle at the moment, secondly, due to train-ground communication delay, when the distance from the tail of the train to be screened to the starting point A2 of the physical section A2B2 where the train to be screened is located is calculated to be smaller than L1(L1 is the minimum train length for line screening-the suspension of the hidden train), the train to be screened already advances by the distance L0, and the condition that the distance from the tail starting point A2 to the tail of the train to be screened is smaller than L1 is not met actually. Based on this, as shown in the example of fig. 4, the train overhang and train-ground communication delay time are considered, the preset tail screening condition is set to be that the tail of the train to be screened is less than the first preset distance L1 '(L1' is the minimum train length for line screening-overhang of hidden train-the running distance L0 of the train to be screened during the position reporting delay time) from the starting point A2 of the physical section A2B2 where the train to be screened is located, and therefore, compared with the example shown in fig. 3, misjudgment caused by the train-ground communication delay time not considered can be avoided.
In an embodiment of the present application, a further example of the preset tail filter condition adopted by the train tail filter method may be a preset tail filter condition including (not shown in the drawings): (1) the distance from the tail part of the train to be screened to the starting point of the physical section where the train to be screened is located is smaller than a first preset distance; (2) and the adjacent physical section behind the physical section where the train to be screened is located is free. The first preset distance is related to the minimum line screening length and the traveling distance of the train to be screened during the position reporting delay. Specifically, the first preset distance may be equal to a value obtained by subtracting a running distance of the train to be screened during the position reporting delay from the minimum train length for line screening. The preset tail screening condition in this example takes the train-ground communication delay into account, so when the train tail position to be screened, which is received by the zone controller and sent by the on-board controller, meets the requirement that the distance from the start point of the physical section is less than the first preset distance, even if the train to be screened advances for a certain distance during the position reporting delay, the train to be screened is still less than the minimum train length for line screening, that is, misjudgment is avoided.
Fig. 5 is a schematic diagram illustrating still another example of the preset tail filter condition adopted by the train tail filter method according to the embodiment of the present application. As shown in fig. 5, the preset tail filter condition in this example includes the aforementioned first condition, second condition and third condition, i.e., the preset tail filter condition in this example includes: (1) the distance from the tail part of the train to be screened to the starting point A2 of a physical section A2B2 where the train to be screened is located is smaller than a first preset distance; (2) the adjacent physical section C2A2 behind the physical section A2B2 where the train to be screened is located is idle; (3) and the physical section D2C2 in a second preset distance L2 behind the starting point C2 of the adjacent physical section C2A2 behind the physical section A2B2 where the train to be screened is located is idle. The first preset distance is related to the minimum line screening length, the overhang of a hidden train behind the train to be screened and/or the running distance of the train to be screened during the position reporting delay. In particular, the first preset distance is equal to any one of: subtracting the suspension of the hidden train behind the train to be screened from the minimum train length of the line screening; subtracting the running distance of the train to be screened in the position reporting delay period from the minimum train length of the line screening; and subtracting the suspension of the hidden train behind the train to be screened from the minimum train length for line screening, and then subtracting the running distance of the train to be screened during the position reporting delay period. The second predetermined distance L2 is equal to the product of the maximum speed allowed by the line and the axle counting state acquisition delay.
A schematic diagram of an information flow 600 during the axle counting state acquisition delay (denoted as the first delay time) corresponding to the second preset distance in the preset tail filter condition shown in fig. 5 is described below with reference to fig. 6. As shown in fig. 6, the axle counting state acquisition delay (i.e. the first delay time) may include the sum of the time occupied by the following steps S610 to S640:
in step S610, after the hidden train behind the train to be screened enters the physical section D2C2, the first axle counting detection plate crosses the start axle counting of the physical section D2C 2.
In step S620, the start axle of the physical section D2C2 detects that the hidden train behind the train to be screened enters the physical section D2C2, and sends the detection result to the computer interlock.
In step S630, the computer interlock updates the state of the physical segment D2C2 to the occupied state, and transmits the occupied state of the physical segment D2C2 to the local station zone controller.
In step S640, the local area controller receives the occupied status of the physical segment D2C 2.
The preset tail screening condition in the example shown in fig. 5 and fig. 6 takes into account train suspension and/or train-ground communication delay, and also takes into account a train-counting state acquisition delay, wherein during the train-counting state acquisition delay, a hidden train behind the train to be screened advances by a second preset distance L2, and when the physical section D2C2 is idle in the range of L2, the adjacent physical section C2A2 behind the physical section A2B2 where the tail of the train to be screened is located is truly idle, so that idle misjudgment of the adjacent physical section C2A2 without taking into account the train-counting state acquisition delay is avoided.
In another embodiment of the present application, when a physical zone corresponding to a neighbor zone controller (which may be referred to as a neighbor ZC, and the neighbor zone controller may be referred to as the ZC for short) exists in the L2 range calculated according to the above-mentioned axle counting state acquisition delay (i.e., the first delay time), as shown in fig. 7, the axle counting state acquisition delay may be calculated again according to the steps included in fig. 8 when the physical zone occupation state delay (i.e., the axle counting state acquisition delay) in the L2 range is calculated.
Fig. 8 is a diagram illustrating an information flow 800 during the axle counting state acquisition delay (denoted as the second delay time) corresponding to the second predetermined distance in the predetermined tail filter condition shown in fig. 7. As shown in fig. 8, the axle counting state collecting delay (i.e. the second delay time) may include the sum of the time occupied by the following steps S810 to S850:
in step S810, after the hidden train behind the train to be screened enters the physical section D2C2, the first axle counting detection plate crosses the start axle counting of the physical section D2C 2.
In step S820, the start axle of the physical section D2C2 detects that the hidden train behind the train to be screened enters the physical section D2C2, and sends the detection result to the computer interlock.
In step S830, the computer interlock updates the state of the physical segment D2C2 to the occupied state and transmits the occupied state of the physical segment D2C2 to the neighbor area controller.
In step S840, the neighboring station area controller receives the occupied status of the physical zone D2C2, and sends the occupied status of the physical zone D2C2 to the local station area controller.
In step S850, the local area controller receives the occupied state of the physical zone D2C 2.
The preset tail screening conditions in the examples shown in fig. 7 and 8 take into account train suspension and/or train-ground communication delay, the axle counting state acquisition delay, and the situation in a multi-zone controller scenario, where a hidden train behind the train to be screened advances by a second preset distance L2 during the axle counting state acquisition delay, and when all the physical zones D2C2 within the range of L2 are idle, the adjacent physical zone C2A2 behind the physical zone A2B2 at the tail of the train to be screened is truly idle, thereby avoiding idle misjudgment of the adjacent physical zone C2A2 without taking into account the axle counting state acquisition delay.
Based on the above description, the train tail screening method according to the embodiment of the application adopts the tail screening condition that at least one of train suspension, axle counting state acquisition delay and train-ground communication delay is considered, so that the train tail screening result is more accurate, and the train tail screening is more reasonable and safer.
The end-of-train screening method according to the embodiment of the present application is exemplarily described above. An end-of-train screening apparatus provided according to another aspect of the present application is described below in conjunction with fig. 9. Fig. 9 is a schematic block diagram of an end-of-train screening apparatus 900 according to an embodiment of the present application. As shown in fig. 9, the end-of-train screening apparatus 900 includes a memory 910 and a processor 920, the memory 910 stores a computer program executed by the processor 920, and the computer program, when executed by the processor 920, causes the processor 920 to execute the end-of-train screening method 200 according to the embodiment of the present application. Those skilled in the art can understand the specific operation of the processor 920 according to the foregoing description, and details are not repeated here for brevity, and only the main operation of the processor 920 is described.
In one embodiment of the application, the computer program, when executed by the processor 920, causes the processor 920 to perform the steps of: determining whether the train to be screened meets a preset tail screening condition, wherein the preset tail screening condition is associated with at least one of train suspension, axle counting state acquisition delay and train-ground communication delay, the train suspension and/or the train-ground communication delay are/is associated with a distance judgment condition included in the preset tail screening condition, and the train-ground communication delay is associated with a section idle judgment condition included in the preset tail screening condition; when the train to be screened meets the preset tail screening condition, determining that the tail of the train to be screened passes screening; and when the train to be screened does not meet the preset tail screening condition, determining that the tail screening of the train to be screened does not pass.
In one embodiment of the present application, the preset tail-screening condition includes at least two of: a distance determination condition, the distance determination condition including: the distance from the tail part of the train to be screened to the starting point of the physical section where the train to be screened is located is less than a first preset distance; a first section idle determination condition, the first section idle determination condition including: the adjacent physical section behind the physical section where the train to be screened is located is idle; a second section idle determination condition, the second section idle determination condition including: the physical section behind the starting point of the adjacent physical section behind the physical section where the train to be screened is located is idle within a second preset distance; the first preset distance is related to the minimum line screening length and is related to the overhang of the hidden train behind the train to be screened and/or the running distance of the train to be screened in the position reporting delay period, and the second preset distance is the running distance of the hidden train behind the train to be screened in the axle counting state acquisition delay period.
In one embodiment of the present application, the first preset distance is equal to any one of: subtracting the value obtained by the suspension of the hidden train behind the train to be screened from the minimum train length of the line screening; subtracting the running distance of the train to be screened in the position reporting delay period from the minimum train length of the line screening; and subtracting the suspension of the hidden train behind the train to be screened from the minimum train length for the line screening, and then subtracting the running distance of the train to be screened during the position reporting delay period.
In one embodiment of the present application, the second predetermined distance is equal to the product of the maximum speed of the train allowed by the train and the axle counting state acquisition delay.
In an embodiment of the present application, the axle counting state acquisition delay includes a sum of time occupied by the following steps: after the hidden train behind the train to be screened drives into the physical section within the second preset distance, the first axle counting detection plate crosses the initial end axle counting of the physical section within the second preset distance; detecting that a hidden train behind the train to be screened enters the physical section within the second preset distance by the starting end shaft counting of the physical section within the second preset distance, and sending a detection result to a computer for interlocking; the computer interlock updates the state of the physical section within the second preset distance into an occupied state, and sends the occupied state of the physical section within the second preset distance to the local station area controller; and the local station area controller receives the occupation state of the physical section within the second preset distance.
In an embodiment of the present application, when the physical segments within the second preset distance include a physical segment corresponding to a neighbor area controller calculated based on the sum of the times, the axle counting state acquisition delay is calculated as the sum of the times occupied by the following steps: after the hidden train behind the train to be screened drives into the physical section within the second preset distance, the first axle counting detection plate crosses the initial end axle counting of the physical section within the second preset distance; detecting that a hidden train behind the train to be screened enters the physical section within the second preset distance by the starting end shaft counting of the physical section within the second preset distance, and sending a detection result to a computer for interlocking; the computer interlock updates the state of the physical section within the second preset distance to an occupied state, and sends the occupied state of the physical section within the second preset distance to the adjacent station area controller; the adjacent station area controller receives the occupation state of the physical section within the second preset distance and sends the occupation state of the physical section within the second preset distance to the local station area controller; and the local station area controller receives the occupation state of the physical section within the second preset distance.
Furthermore, according to an embodiment of the present application, there is also provided a storage medium having stored thereon program instructions for executing the corresponding steps of the end-of-train screening method of the embodiment of the present application when the program instructions are executed by a computer or a processor. The storage medium may include, for example, a memory card of a smart phone, a storage component of a tablet computer, a hard disk of a personal computer, a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), a portable compact disc read only memory (CD-ROM), a USB memory, or any combination of the above storage media.
Furthermore, according to an embodiment of the present application, there is also provided a computer program for executing the corresponding steps of the train end screening method of the embodiment of the present application when the computer program is executed by a computer or a processor.
According to the train tail screening method and device and the tail screening condition adopted by the storage medium, at least one of train suspension, axle counting state acquisition delay and train-ground communication delay is considered, so that the train tail screening result is more accurate, and the train tail screening is more reasonable and safer.
Although the example embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the above-described example embodiments are merely illustrative and are not intended to limit the scope of the present application thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as claimed in the appended claims.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another device, or some features may be omitted, or not executed.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the description of exemplary embodiments of the present application, various features of the present application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the application and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present application should not be construed to reflect the intent: this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.
It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the present application may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some of the modules according to embodiments of the present application. The present application may also be embodied as apparatus programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present application may be stored on a computer readable medium or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the specific embodiments of the present application or the description thereof, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope disclosed in the present application, and shall be covered by the protection scope of the present application. The protection scope of the present application shall be subject to the protection scope of the claims.
Claims (13)
1. A method of end-of-train screening, the method comprising:
determining whether a train to be screened meets a preset tail screening condition, wherein the preset tail screening condition is associated with at least one of train suspension, axle counting state acquisition delay and train-ground communication delay, the train suspension and/or the train-ground communication delay are/is associated with a distance judgment condition included in the preset tail screening condition, and the train-ground communication delay is associated with a section idle judgment condition included in the preset tail screening condition;
when the train to be screened meets the preset tail screening condition, determining that the tail of the train to be screened passes screening;
and when the train to be screened does not meet the preset tail screening condition, determining that the tail screening of the train to be screened does not pass.
2. The method of claim 1, wherein the preset tail-screening conditions include at least two of:
a distance determination condition, the distance determination condition including: the distance from the tail part of the train to be screened to the starting point of the physical section where the train to be screened is located is less than a first preset distance;
a first section idle determination condition, the first section idle determination condition including: the adjacent physical section behind the physical section where the train to be screened is located is idle;
a second section idle determination condition, the second section idle determination condition including: the physical section behind the starting point of the adjacent physical section behind the physical section where the train to be screened is located is idle within a second preset distance;
the first preset distance is related to the minimum line screening length and is related to the overhang of the hidden train behind the train to be screened and/or the running distance of the train to be screened in the position reporting delay period, and the second preset distance is the running distance of the hidden train behind the train to be screened in the axle counting state acquisition delay period.
3. The method according to claim 2, characterized in that said first preset distance is equal to any one of the following:
subtracting the value obtained by the suspension of the hidden train behind the train to be screened from the minimum train length of the line screening;
subtracting the running distance of the train to be screened in the position reporting delay period from the minimum train length of the line screening;
and subtracting the suspension of the hidden train behind the train to be screened from the minimum train length for the line screening, and then subtracting the running distance of the train to be screened during the position reporting delay period.
4. The method of claim 2, wherein the second predetermined distance is equal to the product of the maximum speed of the train allowed by the line and the axle counting state acquisition delay.
5. The method of claim 4, wherein said axle count state acquisition delay comprises a sum of times taken by:
after the hidden train behind the train to be screened drives into the physical section within the second preset distance, the first axle counting detection plate crosses the initial end axle counting of the physical section within the second preset distance;
detecting that a hidden train behind the train to be screened enters the physical section within the second preset distance by the starting end shaft counting of the physical section within the second preset distance, and sending a detection result to a computer for interlocking;
the computer interlock updates the state of the physical section within the second preset distance into an occupied state, and sends the occupied state of the physical section within the second preset distance to the local station area controller;
and the local station area controller receives the occupation state of the physical section within the second preset distance.
6. The method of claim 5, wherein when the physical segments within the second predetermined distance comprise physical segments corresponding to neighbor site area controllers calculated based on the sum of the times, the axle counting state acquisition delay is calculated as the sum of the times comprising the following steps:
after the hidden train behind the train to be screened drives into the physical section within the second preset distance, the first axle counting detection plate crosses the initial end axle counting of the physical section within the second preset distance;
detecting that a hidden train behind the train to be screened enters the physical section within the second preset distance by the starting end shaft counting of the physical section within the second preset distance, and sending a detection result to a computer for interlocking;
the computer interlock updates the state of the physical section within the second preset distance to an occupied state, and sends the occupied state of the physical section within the second preset distance to the adjacent station area controller;
the adjacent station area controller receives the occupation state of the physical section within the second preset distance and sends the occupation state of the physical section within the second preset distance to the local station area controller;
and the local station area controller receives the occupation state of the physical section within the second preset distance.
7. An end-of-train screening apparatus, comprising a memory and a processor, the memory having stored thereon a computer program for execution by the processor, the computer program, when executed by the processor, causing the processor to perform the steps of:
determining whether a train to be screened meets a preset tail screening condition, wherein the preset tail screening condition is associated with at least one of train suspension, axle counting state acquisition delay and train-ground communication delay, the train suspension and/or the train-ground communication delay are/is associated with a distance judgment condition included in the preset tail screening condition, and the train-ground communication delay is associated with a section idle judgment condition included in the preset tail screening condition;
when the train to be screened meets the preset tail screening condition, determining that the tail of the train to be screened passes screening;
and when the train to be screened does not meet the preset tail screening condition, determining that the tail screening of the train to be screened does not pass.
8. The apparatus of claim 7, wherein the preset tail filter condition comprises at least two of:
a distance determination condition, the distance determination condition including: the distance from the tail part of the train to be screened to the starting point of the physical section where the train to be screened is located is less than a first preset distance;
a first section idle determination condition, the first section idle determination condition including: the adjacent physical section behind the physical section where the train to be screened is located is idle;
a second section idle determination condition, the second section idle determination condition including: the physical section behind the starting point of the adjacent physical section behind the physical section where the train to be screened is located is idle within a second preset distance;
the first preset distance is related to the minimum line screening length and is related to the overhang of the hidden train behind the train to be screened and/or the running distance of the train to be screened in the position reporting delay period, and the second preset distance is the running distance of the hidden train behind the train to be screened in the axle counting state acquisition delay period.
9. The apparatus of claim 8, wherein the first preset distance is equal to any one of:
subtracting the value obtained by the suspension of the hidden train behind the train to be screened from the minimum train length of the line screening;
subtracting the running distance of the train to be screened in the position reporting delay period from the minimum train length of the line screening;
and subtracting the suspension of the hidden train behind the train to be screened from the minimum train length for the line screening, and then subtracting the running distance of the train to be screened during the position reporting delay period.
10. The apparatus of claim 8 wherein the second predetermined distance is equal to the product of the maximum speed of the train permitted by the line and the axle count state acquisition delay.
11. The apparatus of claim 10, wherein the axle count state acquisition delay comprises a sum of times taken by:
after the hidden train behind the train to be screened drives into the physical section within the second preset distance, the first axle counting detection plate crosses the initial end axle counting of the physical section within the second preset distance;
detecting that a hidden train behind the train to be screened enters the physical section within the second preset distance by the starting end shaft counting of the physical section within the second preset distance, and sending a detection result to a computer for interlocking;
the computer interlock updates the state of the physical section within the second preset distance into an occupied state, and sends the occupied state of the physical section within the second preset distance to the local station area controller;
and the local station area controller receives the occupation state of the physical section within the second preset distance.
12. The apparatus of claim 11, wherein when the physical segment within the second predetermined distance comprises a physical segment corresponding to a neighbor area controller calculated based on the sum of the times, the axle counting state acquisition delay is calculated as the sum of the times comprising the following steps:
after the hidden train behind the train to be screened drives into the physical section within the second preset distance, the first axle counting detection plate crosses the initial end axle counting of the physical section within the second preset distance;
detecting that a hidden train behind the train to be screened enters the physical section within the second preset distance by the starting end shaft counting of the physical section within the second preset distance, and sending a detection result to a computer for interlocking;
the computer interlock updates the state of the physical section within the second preset distance to an occupied state, and sends the occupied state of the physical section within the second preset distance to the adjacent station area controller;
the adjacent station area controller receives the occupation state of the physical section within the second preset distance and sends the occupation state of the physical section within the second preset distance to the local station area controller;
and the local station area controller receives the occupation state of the physical section within the second preset distance.
13. A storage medium having stored thereon a computer program which, when executed by a processor, causes the processor to execute the end-of-train screening method of any one of claims 1-6.
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