CN112590863A - Train length calculation method, device and system - Google Patents
Train length calculation method, device and system Download PDFInfo
- Publication number
- CN112590863A CN112590863A CN202011539716.0A CN202011539716A CN112590863A CN 112590863 A CN112590863 A CN 112590863A CN 202011539716 A CN202011539716 A CN 202011539716A CN 112590863 A CN112590863 A CN 112590863A
- Authority
- CN
- China
- Prior art keywords
- train
- length
- line
- line section
- locomotive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004364 calculation method Methods 0.000 title claims description 28
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000003137 locomotive effect Effects 0.000 claims description 108
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 16
- 238000004590 computer program Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/026—Relative localisation, e.g. using odometer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The embodiment of the application provides a method, a device and a system for calculating the train length, wherein the method comprises the following steps: acquiring train head positioning information and train tail positioning information of a train; determining a corresponding vehicle head position point and a vehicle tail position point in an electronic map according to the vehicle head positioning information and the vehicle tail positioning information, and dividing a target line between the vehicle head position point and the vehicle tail position point in the electronic map into at least one first line section; the electronic map records map information of a route on which a train runs, and records a straight track area and a curve area on the route, wherein each first route section corresponds to one straight track area or one curve area on a target route; and calculating the real length of each first line section according to the divided endpoint coordinates of each first line section, and obtaining the total train length of the train according to the real length of each first line section. By adopting the scheme in the application, the problem that the train length is inaccurate in the prior art can be solved.
Description
Technical Field
The application relates to the technical field of rail transit, in particular to a method, a device and a system for calculating a train length.
Background
In the conventional control system of a mobile Block train, a train driver is required to manually input the number of locomotives and the number of vehicles of the train to obtain a train length, after the train length is obtained, a train-mounted device calculates the position of the train tail according to the train length, and a Radio Block Center (RBC) calculates the driving permission for a rear train according to the position of the train tail calculated by the train-mounted device. However, since the train formation is not fixed, it cannot be guaranteed that the number of drivers input each time is correct, and an inaccurate conductor can cause a wrong calculation of the position of the tail of the train, thereby bringing about a potential safety hazard for the driving of the following train.
Disclosure of Invention
The embodiment of the application provides a method, a device and a system for calculating the train length, which accurately calculate the train length through positioning information so as to solve the problem of inaccurate train length in the prior art.
According to a first aspect of embodiments of the present application, there is provided a train length calculation method, including: acquiring train head positioning information and train tail positioning information of a train; determining a corresponding vehicle head position point and a corresponding vehicle tail position point in an electronic map according to the vehicle head positioning information and the vehicle tail positioning information, and dividing a target line between the vehicle head position point and the vehicle tail position point in the electronic map into at least one first line section; the electronic map records map information of a route on which the train runs, and records a straight track area and a curve area on the route, wherein each first route section corresponds to one straight track area or one curve area on a target route; and calculating the real length of each first line section according to the divided endpoint coordinates of each first line section, and obtaining the total train length of the train according to the real length of each first line section.
In one embodiment of the first aspect, the obtaining the total length of the train according to the real length of each first line segment includes: and obtaining the total length of the train according to the sum of the real lengths of the at least one first line section.
In one embodiment of the first aspect, if the train is composed of at least two locomotives and a plurality of vehicles connected in series, the obtaining the total length of the train according to the real length of each first line segment comprises: obtaining a first train length of the train according to the sum of the real lengths of the at least one first line section; obtaining locomotive positioning information corresponding to a target locomotive behind a first locomotive in the at least two locomotives, and determining a corresponding locomotive position point in an electronic map according to the locomotive positioning information; obtaining a second length of the train according to the locomotive position point and the locomotive position point, wherein the second length is a real length between the first locomotive and the target locomotive; acquiring a third train length of the train, wherein the third train length is the real length between the target locomotive and the train tail; obtaining a fourth train length of the train according to the sum of the second train length and the third train length; and when the difference value between the first train length and the fourth train length is smaller than a first preset error value, obtaining the total train length of the train according to the first train length and the fourth train length.
In one embodiment of the first aspect, said deriving a total length of the train from the first length and the fourth length comprises: and taking the average value of the first train length and the fourth train length, and determining the average value as the total train length of the train.
In one embodiment of the first aspect, the obtaining a second length of the train from the locomotive location point and the locomotive location point comprises: dividing a sub-line between a locomotive position point and a locomotive position point in the electronic map into at least one second line section, wherein each second line section corresponds to a straight rail area or a curve area on the sub-line; and calculating the real length of each second line section according to the divided endpoint coordinates of each second line section, and obtaining the second train length of the train according to the real length of each second line section.
In one embodiment of the first aspect, the calculating a real length of each first line segment according to the divided endpoint coordinates of each first line segment includes: and if the first line section corresponds to a straight rail area on the target line, calculating the straight rail length corresponding to the first line section according to the coordinates of two end points on the first line section.
In one embodiment of the first aspect, the calculating a real length of each first line segment according to the divided endpoint coordinates of each first line segment includes: if the first line section corresponds to a curve area on a target line, calculating a turning angle formed by the train on the first line section according to coordinates of two end points on the first line section; and calculating the curve length corresponding to the first line section according to the turning angle and the turning radius of the curve area.
In one embodiment of the first aspect, after obtaining the total length of the train according to the real length of each first line segment, the method further comprises: obtaining the position information of the train tail line of the train tail on the running line according to the position information of the train head line of the train head on the running line and the total train length of the train; and sending the head line position information and the tail line position information to a Radio Block Center (RBC) so that the RBC calculates the driving permission of the rear train based on the head line position information and the tail line position information.
In one embodiment of the first aspect, after obtaining the total length of the train according to the real length of each first line segment, the method further comprises: and when the difference value between the total train length and the static train length of the train is larger than a second preset error value, controlling the train to stop running, and sending a train integrity abnormal indication to the RBC, so that the RBC changes the running permission of the rear train based on the train integrity abnormal indication.
According to a second aspect of the embodiments of the present application, there is provided a train length calculating device including: the positioning information acquisition module is used for acquiring the train head positioning information and the train tail positioning information of the train; the segmentation module is used for determining a corresponding vehicle head position point and a corresponding vehicle tail position point in an electronic map according to the vehicle head positioning information and the vehicle tail positioning information, and dividing a target line between the vehicle head position point and the vehicle tail position point in the electronic map into at least one first line section; the electronic map records map information of a route on which the train runs, and records a straight track area and a curve area on the route, wherein each first route section corresponds to one straight track area or one curve area on a target route; and the train length calculating module is used for calculating the real length of each first line section according to the end point coordinates of each divided first line section and obtaining the total train length of the train according to the real length of each first line section.
According to a third aspect of the embodiments of the present application, there is provided a train conductor calculating system, including: the train head positioning equipment is used for acquiring train head positioning information of the train; the train tail positioning device is used for acquiring train tail positioning information of the train; and the vehicle-mounted equipment is in communication connection with the train head positioning equipment and the train tail positioning equipment and is used for executing the train length calculating method in the first aspect and any optional embodiment of the first aspect.
By adopting the technical scheme provided by the embodiment of the application, the target route formed by the train on the electronic map is divided into the plurality of first line sections by the positioning information of the train head and the train tail, the train length is calculated in a segmented manner according to the corresponding area of each first line section, the real length of each first line section can be calculated according to the corresponding area pertinence, so that the obtained result accuracy of the train length is high, and the train length is calculated automatically based on the positioning information of the train without manually inputting the number of the trains, thereby greatly reducing the error rate of the train length and enhancing the running safety of the train.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a train conductor calculation system provided by an embodiment of the present application;
FIG. 2 shows a schematic of a train in a "1 + 0" consist mode;
FIG. 3 shows a schematic of a train in a "1 + 1" consist mode;
fig. 4 shows a flowchart of a train length calculating method provided in the embodiment of the present application;
fig. 5 shows a schematic diagram of the division of a travel route into a straight track area and a curve area in an electronic map;
FIG. 6 shows a schematic diagram of a true length calculation of a curve region;
FIG. 7 illustrates a flowchart detailing the step 230 when the train is comprised of at least two locomotives and a plurality of locomotives connected in series;
fig. 8 shows a schematic diagram of a train length calculating device provided in the embodiment of the present application.
Detailed Description
The following detailed description of exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, makes it apparent that the described embodiments are only some embodiments of the application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The embodiment of the application provides a train length calculation method, a train length calculation device and a train length calculation system, wherein the actual length of a train (including but not limited to a moving block train) running on a track line is calculated based on positioning information of a train head and a train tail, the obtained length is high in accuracy, and the length is automatically calculated based on the positioning information, so that the number of the trains is not required to be manually input, the error rate of the length is greatly reduced, and the running safety of the train is enhanced.
Fig. 1 is a schematic diagram illustrating a train conductor calculating system according to an embodiment of the present application, and referring to fig. 1, the system includes: the train positioning system comprises a train head positioning device 110, a train tail positioning device 120 and a vehicle-mounted device 130, wherein the train head positioning device 110 and the train tail positioning device 120 are in communication connection with the vehicle-mounted device 130, the train head positioning device 110 is arranged at the train head, for example, at the position of a first locomotive of a train, and is used for acquiring train head positioning information of the train, and the train tail positioning device 120 is arranged at the train tail and is used for acquiring train tail positioning information of the train. The vehicle head positioning device 110 sends the acquired vehicle head positioning information to the vehicle-mounted device 130, and the vehicle tail positioning device 120 sends the acquired vehicle tail positioning information to the vehicle-mounted device 130.
The vehicle-mounted device 130 is disposed in a first locomotive of the train, and is configured to obtain the head positioning information and the tail positioning information, compare the head positioning information and the tail positioning information with an electronic map, and determine a head position point and a tail position point in the electronic map. The electronic map records map information of a route on which the train travels and records a straight track area and a curve area on the route. The vehicle-mounted device 130 is configured to determine a target route from a head position point to a tail position point in the electronic map according to the head position point and the tail position point, and divide the target route into at least one first route section according to an area, where each first route section corresponds to a straight track area or a curve area on the target route.
The on-board device 130 is configured to calculate a real length of each first line segment according to the divided end point coordinates of each first line segment, and obtain a total length of the train according to the real length of each first line segment.
It should be noted that the train formation modes include the following two types:
mode (1): the locomotive consists of a locomotive and a plurality of vehicles behind the locomotive which are connected in series, namely a '1 + 0' marshalling mode;
mode (2): the locomotive consists of at least two locomotives and a plurality of vehicles which are connected in series, wherein at least one vehicle is connected in series behind each locomotive; currently, a "1 + 1" consist mode is generally used, i.e., two locomotives and multiple cars are involved.
Fig. 2 shows a schematic diagram of a train in a marshalling mode of "1 + 0", where a first locomotive is provided with a vehicle-mounted device and a head positioning device, a tail positioning device is provided at a tail of the train, and the head positioning device and the tail positioning device are configured to acquire positioning information and send the acquired positioning information to the vehicle-mounted device.
Further included in the computing system is: RBC (Radio Block Center); the RBC is in communication connection with the vehicle-mounted equipment, and the vehicle-mounted equipment is used for sending the head line position information and the tail line position information of the train to the RBC, receiving the driving permission sent by the RBC and controlling the train to run according to the safe distance in the driving permission.
Fig. 3 shows a schematic diagram of a train in a "1 + 1" consist mode, with an on-board device and a head locating device provided at a first locomotive, a locomotive locating device provided at a second locomotive of the train, and a tail locating device provided at a tail of the train. The locomotive positioning equipment, the locomotive positioning equipment and the tail positioning equipment are used for sending the acquired positioning information to the vehicle-mounted equipment at the first locomotive.
Fig. 4 is a flowchart illustrating a method for calculating a train length according to an embodiment of the present application, where the method is executed by an on-board device in the system, and please refer to fig. 4, where the method includes:
step 210: and acquiring the train head positioning information and the train tail positioning information of the train.
The vehicle-mounted equipment obtains the train head positioning information through the train head positioning equipment, obtains the train tail positioning information through the train tail positioning equipment, and the train head positioning information and the train tail positioning information are longitude and latitude coordinate information of the train head and longitude and latitude coordinate information of the train tail, which are obtained through satellite positioning.
Step 220: and determining a corresponding vehicle head position point and a corresponding vehicle tail position point in the electronic map according to the vehicle head positioning information and the vehicle tail positioning information, and dividing a target line between the vehicle head position point and the vehicle tail position point in the electronic map into at least one first line section.
The electronic map records map information of a route on which a train runs, straight track areas and curve areas on the route, and simultaneously records end point coordinates of each straight track area and end point coordinates of each curve area and the turning radius of each curve area. In step 220, each of the first line segments divided corresponds to a straight track region or a curve region on the target line.
Prior to step 210, the computing method further comprises: and acquiring the on-site satellite positioning data of the running line of the train, and constructing an electronic map for calculating the train length. As shown in fig. 5, the driving route is divided into a straight track area and a curve area, satellite positioning coordinates of end points of each area, such as coordinates of a positioning point 1, coordinates of a positioning point 2 and coordinates of a positioning point 3, are recorded, and the curve radius of the curve area is recorded, and the above information is formed into an electronic map.
Step 230: and calculating the real length of each first line section according to the divided endpoint coordinates of each first line section, and obtaining the total train length of the train according to the real length of each first line section.
If the target line in the electronic map is divided into a plurality of first line sections, the target line is calculated in a segmented mode, the real length of each first line section is calculated, and then the total train length of the train is obtained according to the real length of each first line section.
In the process, the target route formed by the train on the electronic map is divided into a plurality of first line sections through the positioning information of the train head and the train tail, the train length is calculated in a segmented mode according to the area corresponding to each first line section, the real length of each first line section can be calculated in a pertinence mode according to the corresponding area, the accuracy of the obtained train length result is high, and the train length is calculated automatically based on the positioning information of the train without manually inputting the number of the trains, so that the error rate of the train length is greatly reduced, and the running safety of the train is enhanced.
Optionally, the manner of calculating the real length of the first line segment includes:
and if the first line section corresponds to a straight rail area on the target line, calculating the straight rail length corresponding to the first line section according to the coordinates of the two end points on the first line section.
If the first line section corresponds to a curve area on a target line, calculating a turning angle formed by the train on the first line section according to coordinates of two end points on the first line section, and calculating a curve length corresponding to the first line section according to the turning angle and the turning radius of the curve area.
After the target line is divided into at least one first line section according to the area, a corresponding calculation mode is selected in a targeted mode according to the area corresponding to each first line section to obtain the corresponding length, so that the accuracy of the obtained length result is high, and particularly when the first line section of the curve area is calculated, the curve length of the first line section of the curve area can be accurately obtained according to the turning angle and the turning radius of the curve area recorded in the electronic map.
Fig. 6 is a schematic diagram illustrating calculation of the actual length of a curve region, where as shown in fig. 6, a train head is located in the curve region, a train tail is located in a straight rail region, a target line between a head position point and a tail position point is divided into two first line segments, namely a line segment 1 and a line segment 2, the line segment 1 corresponds to the curve region, end points of the line segment are a head position point and a positioning point 2, the line segment 2 corresponds to the straight rail region, and end points of the line segment are a positioning point 2 and a tail position point.
The line section 1 corresponds to a curve area, a straight line distance L3 between a head position point and a positioning point 2 is calculated according to longitude and latitude coordinates of the head position point and the positioning point 2, a turning angle beta formed between the head position point and the positioning point 2 is calculated according to the straight line distance L3 and a turning radius R of the curve area, wherein,
after the turning angle beta is obtained, calculating the real length between the head position point and the positioning point 2 according to an arc length formula, and recording as L1,
and the line 2 corresponds to a straight rail area, and the real length between the positioning point 2 and the tail position point is obtained by directly calculating through a distance formula between the two coordinates according to the longitude and latitude coordinates of the positioning point 2 and the tail position point and is marked as L2.
After the actual lengths of the line segment 1 and the line segment 2 are obtained, the total length L of the train is L1+ L2.
If the length of the train is short or the head and the tail of the train are both located in the same area on the route, the target route in the electronic map only divides a first route section, and the real length of the first route section is the total length of the train.
It can be understood that, for both the grouping mode (1) and the grouping mode (2), the total length of the train can be obtained according to the sum of the real lengths of all the first line segments after obtaining the real length of each first line segment, and since the total length can be obtained only by adding the real lengths of all the first line segments, the calculation amount is small, and the method can be generally applied to any train grouping mode, including but not limited to the two grouping modes described above in this embodiment.
After the on-board device executes step 210 and step 230 to obtain the total length of the train, the position information of the train tail line of the train tail on the running line is obtained according to the position information of the train head line of the train head on the running line and the total length of the train. And the vehicle-mounted equipment sends the head line position information and the tail line position information to the RBC. The RBC is a computer control system based on wireless communication, and can send train running permission and train control information to all trains in the jurisdiction area according to the position condition, the running condition, the line condition, the scheduling command and the access state of the trains, so that the trains can run safely on the lines in the jurisdiction area of the RBC.
The RBC calculates the driving permission of the rear train based on the position information of the train head line and the position information of the train tail line, and sends the driving permission to the vehicle-mounted equipment on the rear train.
It can be understood that the train total length obtained by the vehicle-mounted device is very accurate, so that the train tail line position information obtained by the RBC and the train running permission calculated based on the train tail line position information are also accurate, and the train on the line can be ensured to run more safely.
The vehicle head line position information can be obtained through a ground transponder.
Optionally, in the grouping mode (2), since the train length of the grouping mode is longer, generally 2000 m to 3000 m, two train length results of the train can be calculated respectively through two calculation methods, and the obtained two train length results are compared to obtain a more accurate train length.
Therefore, if the train is in the consist mode (2), i.e. the train is composed of at least two locomotives and a plurality of trains connected in series, referring to fig. 7, the process of obtaining the total length of the train according to the real length of each first line segment in step 230 includes the following steps:
step 231: and obtaining the first train length of the train according to the sum of the real lengths of the at least one first line section.
The first train length is calculated by the vehicle-mounted equipment in the first locomotive through the train head positioning information and the train tail positioning information.
Step 232: the method comprises the steps of obtaining locomotive positioning information corresponding to a target locomotive behind a first locomotive, and determining a corresponding locomotive position point in an electronic map according to the locomotive positioning information.
And a locomotive positioning device is arranged at a target locomotive behind the first locomotive in the train and is used for acquiring locomotive positioning information of the target locomotive. In the "1 + 1" consist mode, the target locomotive is the second locomotive. The locomotive positioning equipment sends the locomotive positioning information to the vehicle-mounted equipment in the first section of locomotive, and the vehicle-mounted equipment determines a corresponding locomotive position point in the electronic map according to the locomotive positioning information.
Step 233: and obtaining a second train length of the train according to the locomotive position point and the locomotive position point, wherein the second train length is the real length between the first locomotive and the target locomotive.
And the vehicle-mounted equipment calculates the real length between the first locomotive and the target locomotive according to the locomotive position point and the locomotive position point to obtain a second locomotive length.
The second vehicle length calculation mode comprises the following steps: dividing a sub-line between a locomotive position point and a locomotive position point in an electronic map into at least one second line section, wherein each second line section corresponds to a straight rail area or a curve area on the sub-line; and calculating the real length of each second line section according to the divided endpoint coordinates of each second line section, and obtaining the second train length of the train according to the real length of each second line section. The calculation method of the second vehicle length may refer to the calculation method of the first vehicle length, which is not described herein.
In step 233, since the calculation method of the second length of train is consistent with the calculation method of the first length of train, it can be ensured that the second length of train obtained in this embodiment and the fourth length of train obtained based on the second length of train are more accurate, and therefore, when the first length of train is compared with the fourth length of train, the error caused by the longer length of train can be reduced.
Step 234: and acquiring a third train length of the train, wherein the third train length is the real length between the target locomotive and the train tail.
In one embodiment, the vehicle-mounted device in the first locomotive is used as a main vehicle-mounted device, the auxiliary vehicle-mounted device is arranged in the target locomotive, the locomotive positioning device sends the locomotive positioning information to the auxiliary vehicle-mounted device, the tail positioning device sends the tail positioning information to the auxiliary vehicle-mounted device, the auxiliary vehicle-mounted device obtains the locomotive positioning information and the tail positioning information, and the corresponding locomotive position point and the tail position point are determined in the electronic map. And the auxiliary vehicle-mounted equipment calculates the real length between the target locomotive and the train tail according to the locomotive position point and the train tail position point to obtain a third vehicle length, and sends the third vehicle length to the main vehicle-mounted equipment. The calculation method of the third vehicle length may refer to the calculation method of the first vehicle length, which is not described herein.
It can be understood that since the on-board device in the first locomotive has already acquired the car tail positioning information in step 210 and acquired the locomotive positioning information in step 232, in step 234, the real length between the target locomotive and the train car tail can also be calculated by the on-board device according to the locomotive position point and the car tail position point, so as to obtain the third length.
Step 235: and obtaining a fourth train length of the train according to the sum of the second train length and the third train length.
Step 236: judging whether the difference value of the first vehicle length and the fourth vehicle length is smaller than a first preset error value or not; if so, go to step 237.
If not, the driver is prompted that the train length calculation fails.
The first preset error value is determined based on satellite positioning errors. Taking the Beidou satellite positioning as an example, the Beidou positioning information has a maximum positioning error of 10 meters, so that the maximum error of the first vehicle length is 20 meters, the maximum error of the fourth vehicle length is 30 meters, and the first preset error value can be set as the sum of the maximum error of the first vehicle length and the maximum error of the fourth vehicle length, such as 50 meters. When the difference between the first length and the fourth length is within 50 meters, the train length calculation is considered to be successful, and the step 236 is executed to obtain the total length of the train.
Step 237: and obtaining the total train length according to the first train length and the fourth train length.
In step 237, the average of the first length and the fourth length is determined as the total length of the train, which can reduce the error caused by a single calculation and improve the accuracy of the obtained total length of the train. Of course, one of the first length or the fourth length may be taken as the total length of the train, or a weighted average of the first length and the fourth length may be taken as the total length of the train.
Further, the integrity of the train is an important condition for preventing the train from being tracked by the moving block, and after the total length of the train is obtained, the integrity of the train can be detected based on the total length of the train.
When the difference value between the total train length and the static train length of the train is larger than a second preset error value, the train is not complete, and therefore the vehicle-mounted equipment controls the train to stop running and sends a train integrity abnormal indication to the RBC, so that the RBC changes the running permission of the rear train based on the train integrity abnormal indication.
The static train length is the train length calculated under the state that the train stops.
The second preset error value is set to be different when the train is in different consist modes. For example, in the "1 + 0" grouping mode, the corresponding second preset error value may be set to 20 meters, and in the "1 + 1" grouping mode, the corresponding second preset error value may be set to 50 meters. In the moving process of the train, the vehicle-mounted equipment calculates the total train length of the train, compares the total train length with the static train length, considers satellite positioning errors, considers that the train is in a complete state when the difference value between the total train length and the static train length in a 1+0 marshalling mode is less than 20 meters, or considers that the difference value between the total train length and the static train length in a 1+1 marshalling mode is less than 50 meters, otherwise considers that the integrity of the train is abnormal, immediately applies braking to ensure that the train stops, informs RBC of the abnormal integrity state of the train to change the driving permission to a safe distance for a rear train.
It can be understood that the detection result of the integrity of the train is obtained based on the total train length of the train obtained by the embodiment, the accuracy of the detection result is high, the train can be further ensured not to derail or unhook when running, the integrity of the train is ensured, and the running safety of the rear train is ensured by timely changing the running permission when the integrity is abnormal.
Based on the same inventive concept, an embodiment of the present application provides a train length calculating device, which can be configured in a train-mounted device, please refer to fig. 8, and the device includes:
a positioning information obtaining module 310, configured to obtain train head positioning information and train tail positioning information of the train;
the segmentation module 320 is configured to determine a corresponding vehicle head position point and a corresponding vehicle tail position point in an electronic map according to the vehicle head positioning information and the vehicle tail positioning information, and divide a target route between the vehicle head position point and the vehicle tail position point in the electronic map into at least one first route section; the electronic map records map information of a route on which the train runs, and records a straight track area and a curve area on the route, wherein each first route section corresponds to one straight track area or one curve area on a target route;
a train length calculating module 330, configured to calculate a real length of each first line segment according to the end point coordinates of each first line segment, and obtain a total train length of the train according to the real length of each first line segment
Optionally, the vehicle length calculating module 330 is specifically configured to: and obtaining the total length of the train according to the sum of the real lengths of the at least one first line section.
Optionally, if the train is formed by at least two locomotives and a plurality of vehicles connected in series, the length calculating module 330 includes:
the first train length obtaining module is used for obtaining a first train length of the train according to the sum of the real lengths of the at least one first line section;
the position point determining module is used for acquiring locomotive positioning information corresponding to a target locomotive behind a first locomotive in the at least two locomotives and determining a corresponding locomotive position point in an electronic map according to the locomotive positioning information;
the second length obtaining module is used for obtaining a second length of the train according to the locomotive position point and the locomotive position point, wherein the second length is the real length between the first section of locomotive and the target locomotive;
the third train length obtaining module is used for obtaining a third train length of the train, wherein the third train length is the real length between the target locomotive and the train tail;
the fourth train length obtaining module is used for obtaining a fourth train length of the train according to the sum of the second train length and the third train length;
and the total train length calculating module is used for obtaining the total train length of the train according to the first train length and the fourth train length when the difference value of the first train length and the fourth train length is smaller than a first preset error value.
Optionally, the total length calculating module is specifically configured to: and taking the average value of the first train length and the fourth train length, and determining the average value as the total train length of the train.
Optionally, the second captain obtaining module includes:
the second line section dividing module is used for dividing a sub-line between a locomotive position point and a locomotive position point in the electronic map into at least one second line section, and each second line section corresponds to a straight rail area or a curve area on the sub-line;
and the second length calculating module is used for calculating the real length of each second line section according to the end point coordinates of each divided second line section and obtaining the second length of the train according to the real length of each second line section.
Optionally, the vehicle length calculating module 330 is specifically configured to: and if the first line section corresponds to a straight rail area on the target line, calculating the straight rail length corresponding to the first line section according to the coordinates of two end points on the first line section.
Optionally, the vehicle length calculating module 330 is specifically configured to: if the first line section corresponds to a curve area on a target line, calculating a turning angle formed by the train on the first line section according to coordinates of two end points on the first line section; and calculating the curve length corresponding to the first line section according to the turning angle and the turning radius of the curve area.
Optionally, the apparatus further comprises:
the train tail position determining module is used for obtaining train tail line position information of train tails on a running line according to train head line position information of the train heads on the running line and the total train length of the train;
and the line position sending module is used for sending the train head line position information and the train tail line position information to a Radio Block Center (RBC) so that the RBC can calculate the driving permission of a rear train based on the train head line position information and the train tail line position information.
Optionally, the apparatus further comprises:
and the integrity abnormity detection module is used for controlling the train to stop running and sending a train integrity abnormity indication to the RBC when the difference value between the total train length and the static train length of the train is larger than a second preset error value, so that the RBC changes the running permission of the rear train based on the train integrity abnormity indication.
In summary, according to the method, the device and the system for calculating the train length of the train provided by the embodiment of the application, the target route formed by the train on the electronic map is divided into the plurality of first line sections according to the positioning information of the train head and the train tail, the train length is calculated in a segmented manner according to the corresponding area of each first line section, the real length of each first line section can be calculated according to the corresponding area pertinence, so that the accuracy of the obtained train length result is high, and the train length is calculated automatically based on the positioning information of the train without manually inputting the number of the trains, so that the error rate of the train length is greatly reduced, and the running safety of the train is enhanced.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (11)
1. A train length calculation method is characterized by comprising the following steps:
acquiring train head positioning information and train tail positioning information of a train;
determining a corresponding vehicle head position point and a corresponding vehicle tail position point in an electronic map according to the vehicle head positioning information and the vehicle tail positioning information, and dividing a target line between the vehicle head position point and the vehicle tail position point in the electronic map into at least one first line section; the electronic map records map information of a route on which the train runs, and records a straight track area and a curve area on the route, wherein each first route section corresponds to one straight track area or one curve area on a target route;
and calculating the real length of each first line section according to the divided endpoint coordinates of each first line section, and obtaining the total train length of the train according to the real length of each first line section.
2. The method of claim 1, wherein said deriving a total length of said train from a true length of each first line segment comprises:
and obtaining the total length of the train according to the sum of the real lengths of the at least one first line section.
3. The method of claim 1, wherein if the train is comprised of at least two locomotives and a plurality of vehicles connected in series, said deriving the total length of the train from the actual length of each first route segment comprises:
obtaining a first train length of the train according to the sum of the real lengths of the at least one first line section;
obtaining locomotive positioning information corresponding to a target locomotive behind a first locomotive in the at least two locomotives, and determining a corresponding locomotive position point in an electronic map according to the locomotive positioning information;
obtaining a second length of the train according to the locomotive position point and the locomotive position point, wherein the second length is a real length between the first locomotive and the target locomotive;
acquiring a third train length of the train, wherein the third train length is the real length between the target locomotive and the train tail;
obtaining a fourth train length of the train according to the sum of the second train length and the third train length;
and when the difference value between the first train length and the fourth train length is smaller than a first preset error value, obtaining the total train length of the train according to the first train length and the fourth train length.
4. The method of claim 3, wherein said deriving a total length of the train from the first length and the fourth length comprises:
and taking the average value of the first train length and the fourth train length, and determining the average value as the total train length of the train.
5. The method of claim 3, wherein the obtaining a second length of the train from the locomotive location point and the locomotive location point comprises:
dividing a sub-line between a locomotive position point and a locomotive position point in the electronic map into at least one second line section, wherein each second line section corresponds to a straight rail area or a curve area on the sub-line;
and calculating the real length of each second line section according to the divided endpoint coordinates of each second line section, and obtaining the second train length of the train according to the real length of each second line section.
6. The method according to any one of claims 1 to 5, wherein said calculating the true length of each first line segment based on the endpoint coordinates of each first line segment divided comprises:
and if the first line section corresponds to a straight rail area on the target line, calculating the straight rail length corresponding to the first line section according to the coordinates of two end points on the first line section.
7. The method according to any one of claims 1 to 5, wherein said calculating the true length of each first line segment based on the endpoint coordinates of each first line segment divided comprises:
if the first line section corresponds to a curve area on a target line, calculating a turning angle formed by the train on the first line section according to coordinates of two end points on the first line section;
and calculating the curve length corresponding to the first line section according to the turning angle and the turning radius of the curve area.
8. The method of claim 1, wherein after deriving the total length of the train from the real length of each first line segment, the method further comprises:
obtaining the position information of the train tail line of the train tail on the running line according to the position information of the train head line of the train head on the running line and the total train length of the train;
and sending the head line position information and the tail line position information to a Radio Block Center (RBC) so that the RBC calculates the driving permission of the rear train based on the head line position information and the tail line position information.
9. The method of claim 8, wherein after deriving the total length of the train from the real length of each first line segment, the method further comprises:
and when the difference value between the total train length and the static train length of the train is larger than a second preset error value, controlling the train to stop running, and sending a train integrity abnormal indication to the RBC, so that the RBC changes the running permission of the rear train based on the train integrity abnormal indication.
10. A train length calculating device, comprising:
the positioning information acquisition module is used for acquiring the train head positioning information and the train tail positioning information of the train;
the segmentation module is used for determining a corresponding vehicle head position point and a corresponding vehicle tail position point in an electronic map according to the vehicle head positioning information and the vehicle tail positioning information, and dividing a target line between the vehicle head position point and the vehicle tail position point in the electronic map into at least one first line section; the electronic map records map information of a route on which the train runs, and records a straight track area and a curve area on the route, wherein each first route section corresponds to one straight track area or one curve area on a target route;
and the train length calculating module is used for calculating the real length of each first line section according to the end point coordinates of each divided first line section and obtaining the total train length of the train according to the real length of each first line section.
11. A train conductor calculation system, comprising:
the train head positioning equipment is used for acquiring train head positioning information of the train;
the train tail positioning device is used for acquiring train tail positioning information of the train;
the train length calculation method comprises the following steps of carrying out train length calculation according to any one of claims 1 to 9 by using vehicle-mounted equipment which is in communication connection with the train head positioning equipment and the train tail positioning equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539716.0A CN112590863A (en) | 2020-12-23 | 2020-12-23 | Train length calculation method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539716.0A CN112590863A (en) | 2020-12-23 | 2020-12-23 | Train length calculation method, device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112590863A true CN112590863A (en) | 2021-04-02 |
Family
ID=75200405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011539716.0A Pending CN112590863A (en) | 2020-12-23 | 2020-12-23 | Train length calculation method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112590863A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116279698B (en) * | 2023-05-17 | 2023-07-28 | 卡斯柯信号(北京)有限公司 | Train length calculation method and device based on train position and interlocking state |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006232211A (en) * | 2005-02-28 | 2006-09-07 | East Japan Railway Co | Train length calculating method, and train controlling system |
| CN110745162A (en) * | 2019-09-04 | 2020-02-04 | 北京全路通信信号研究设计院集团有限公司 | Train integrity checking method and system |
| CN111016974A (en) * | 2019-12-31 | 2020-04-17 | 卡斯柯信号有限公司 | Train integrity monitoring system and method based on electronic map |
| CN111267911A (en) * | 2020-02-10 | 2020-06-12 | 兰州交通大学 | Train integrity detection method |
-
2020
- 2020-12-23 CN CN202011539716.0A patent/CN112590863A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006232211A (en) * | 2005-02-28 | 2006-09-07 | East Japan Railway Co | Train length calculating method, and train controlling system |
| CN110745162A (en) * | 2019-09-04 | 2020-02-04 | 北京全路通信信号研究设计院集团有限公司 | Train integrity checking method and system |
| CN111016974A (en) * | 2019-12-31 | 2020-04-17 | 卡斯柯信号有限公司 | Train integrity monitoring system and method based on electronic map |
| CN111267911A (en) * | 2020-02-10 | 2020-06-12 | 兰州交通大学 | Train integrity detection method |
Non-Patent Citations (1)
| Title |
|---|
| 韩改堂等: "一种基于卫星导航的列车初始定位方法研究", 《铁道通信信号》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116279698B (en) * | 2023-05-17 | 2023-07-28 | 卡斯柯信号(北京)有限公司 | Train length calculation method and device based on train position and interlocking state |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8271153B2 (en) | System, method and computer readable memory medium for verifying track database information | |
| US8452467B2 (en) | System and method for verifying track database information | |
| CN111098894B (en) | Train positioning method and system based on track curve characteristics | |
| CN110837539B (en) | Railway electronic map construction method and electronic map position matching method | |
| DK3038879T3 (en) | Determination of the position of a rail vehicle | |
| CN107077791A (en) | Drive assistance device | |
| CN111137298B (en) | Vehicle automatic driving method, device, system and storage medium | |
| CA3045430A1 (en) | Systems and methods for determining track location and/or direction of travel | |
| JP6154929B2 (en) | Railway vehicle driving method and system | |
| US10752267B2 (en) | Radio blocking in a train control system | |
| CN102620741A (en) | Course guidance system, course guidance method, and course guidance program | |
| CN109923375A (en) | Road determining device and vehicle control system | |
| CN106463050A (en) | Method for processing measurement data of a vehicle in order to determine the start of a search for a parking space and computer program product | |
| CN110809233A (en) | DSRC-based vehicle positioning method and system | |
| CN113525458A (en) | LKJ basic data organization and application method | |
| CN108053643A (en) | A kind of fleet's fleet system | |
| CN104992568A (en) | Highway high-speed rail transit system and realization method | |
| CN112590863A (en) | Train length calculation method, device and system | |
| CN115892122A (en) | Train control system, method, electronic device, and storage medium | |
| CN106660562A (en) | Method for processing measurement data of a vehicle in order to determine the start of a search for a parking space and computer program product | |
| CN113799715B (en) | Method and device for determining cause of abnormality of vehicle, communication equipment and storage medium | |
| RU2422315C1 (en) | System for locomotive movement control during shunting operations | |
| CN115848454A (en) | Track section division method based on optimized operation interval | |
| US11754725B2 (en) | Vehicle location and control system | |
| US11708101B2 (en) | Vehicle orientation determination system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210402 |
|
| RJ01 | Rejection of invention patent application after publication |