CN114559989A - Train positioning method and device, terminal equipment and storage medium - Google Patents

Train positioning method and device, terminal equipment and storage medium Download PDF

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CN114559989A
CN114559989A CN202210094132.XA CN202210094132A CN114559989A CN 114559989 A CN114559989 A CN 114559989A CN 202210094132 A CN202210094132 A CN 202210094132A CN 114559989 A CN114559989 A CN 114559989A
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train
information
line
platform
station
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CN114559989B (en
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肖雄
肖中卿
贾建平
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Guangdong Huazhiyuan Information Engineering Co ltd
Guangzhou Huajia Software Co ltd
Guangzhou Jiadu Urban Rail Intelligent Operation And Maintenance Service Co ltd
PCI Technology Group Co Ltd
PCI Technology and Service Co Ltd
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Guangdong Huazhiyuan Information Engineering Co ltd
Guangzhou Huajia Software Co ltd
Guangzhou Jiadu Urban Rail Intelligent Operation And Maintenance Service Co ltd
PCI Technology Group Co Ltd
PCI Technology and Service Co Ltd
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Priority to CN202210094132.XA priority Critical patent/CN114559989B/en
Publication of CN114559989A publication Critical patent/CN114559989A/en
Priority to PCT/CN2022/134098 priority patent/WO2023142636A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02Indicating or recording positions or identities of vehicles or trains
    • B61L25/025Absolute localisation, e.g. providing geodetic coordinates
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The embodiment of the invention discloses a train positioning method, a train positioning device, terminal equipment and a storage medium, wherein the method comprises the following steps: obtaining line information of each line, wherein the line information comprises stations in two directions of going up and down on the line; acquiring train arrival information of each platform of each current station, wherein the train arrival information comprises train information of each platform, namely arrival at the station; according to the line information and the train arrival information, obtaining in-transit train information of each line, wherein the in-transit train information comprises a platform and arrival time of each train which is about to arrive at the station in the up-down two directions of each line; and determining the position information of each train on each line according to the on-road train information. The embodiment of the invention can realize the real-time positioning of the train position without newly adding equipment, and solves the technical problem that the real-time positioning of the train can not be realized under the condition of low cost in the prior art.

Description

Train positioning method and device, terminal equipment and storage medium
Technical Field
The embodiment of the application relates to the field of rail transit, in particular to a train positioning method, a train positioning device, terminal equipment and a storage medium.
Background
Currently, with the progress of scientific technology and the development of engineering technology, various train positioning technologies, such as track circuits, odometers, query/responder devices, speed measuring devices, satellite systems, wireless communication and inductive loop wires, are proposed. However, the existing train positioning technology has the following disadvantages:
(1) the train positioning based on the track circuit has the defects that the positioning accuracy depends on the length of the track circuit, the positioning is not accurate enough, and the moving block cannot be formed.
(2) Train positioning based on an inquiry/responder is the most widely applied mode in rail transit, but has the defects that only point type positioning information can be given, and the contradiction between the set distance and the investment scale exists.
(3) The train positioning technology based on wireless communication is a new positioning technology, and is a mobile block positioning method based on advanced communication technology and computer technology. By arranging radio equipment on the train and beside the track, the real-time positioning of the train is realized by utilizing advanced wireless communication and computer information processing technology. The method has the advantages of accurate positioning, but has the disadvantages of high investment cost due to the need of arranging the special spread spectrum base station along the line.
(4) The train positioning based on the induction loop is that when a train passes through each cable intersection, the vehicle-mounted equipment detects the polarity change of a signal in the loop and counts the number of the polarity change, so that the passing distance of the train is determined, and the positioning purpose is achieved. This positioning method is also affected by the length of the intersection zone, and if the intersection zone is narrow, the probability of position pulse missing meter is high, and the accuracy of positioning is low.
In summary, how to implement real-time positioning of the train position under the condition of low cost becomes a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention provides a train positioning method, a train positioning device, terminal equipment and a storage medium, and solves the technical problem that the real-time positioning of a train cannot be realized under the condition of low cost in the prior art.
In a first aspect, an embodiment of the present invention provides a train positioning method, including the following steps:
obtaining line information of each line, wherein the line information comprises stations in uplink and downlink directions of the line;
acquiring train arrival information of each platform of each current station, wherein the train arrival information comprises train information of each platform, namely arrival at the station;
Obtaining in-transit train information of each line according to the line information and the train arrival information, wherein the in-transit train information comprises a platform at which each train in the up-down two directions of each line is to arrive and arrival time;
and determining the position information of each train on each line according to the on-road train information.
Preferably, the obtaining the in-transit train information of each route according to the route information and the train arrival information includes:
determining the uplink and downlink directions and the lines of each platform according to the train arrival information and the line information of each platform;
obtaining basic train arrival information of each platform of each line according to the train arrival information of each platform, the uplink and downlink directions and the line to which the station belongs;
and obtaining the in-transit train information of each line according to the arrival information of the basic train.
Preferably, the train information includes a destination station of a train to arrive at a station and the arrival time, and the train arrival information further includes stations to which the respective platforms belong.
Preferably, the determining the uplink and downlink directions and the lines of each platform according to the train arrival information of each platform and the line information includes:
Determining the line of each platform according to the line information and the destination station of the train to be arrived at in the train arrival information of each platform;
and determining the uplink and downlink directions of each platform according to the line information, the line of each platform and the train arrival information.
Preferably, the route information includes serial numbers of each station of the route in up and down directions, and the size of the serial number of the station is proportional to the distance between the station and a designated station on the route;
correspondingly, the determining the uplink and downlink directions of each station according to the line information, the line to which each station belongs, and the train arrival information includes:
acquiring first line information of a corresponding line according to the line of each station;
determining a first serial number of a station of each platform in the up-down two directions and a second serial number of a target station of a train to be arrived at the station of each platform in the up-down two directions from the first line information;
and determining the uplink and downlink directions of each station according to the first sequence number and the second sequence number.
Preferably, the obtaining the in-transit train information of each route according to the base train arrival information includes:
obtaining first train arrival information of each line according to the basic train arrival information, wherein the first train arrival information comprises arrival time of each platform of each line, namely a train which will arrive at the station;
and filtering the first train arrival information of each line to obtain the in-transit train information of each line.
Preferably, the determining the position information of each train on each route according to the in-transit train information includes:
according to the on-road train information, calculating the arrival distance between each platform and the train to be arrived at the station on each line;
and determining the position information of each train on each line according to the arrival distance.
Preferably, the calculating the arrival distance between each platform and the train to be arrived at the station on each line according to the on-road train information comprises:
calculating the average running speed of each train on each line in the corresponding interval of each platform;
and calculating the arrival distance between each platform on each line and the train to be arrived according to the average running speed and the arrival time of the train to be arrived at each platform on each line in the in-transit train information.
Preferably, the determining the position information of each train on each line according to the arrival distance includes:
calculating the proportion of each arrival distance in the interval corresponding to the corresponding station;
and determining the position information of each train on each line according to each specific gravity.
Preferably, the method further comprises the following steps:
and adjusting the preset train operation diagram in real time according to the position information of each train on each line.
In a second aspect, an embodiment of the present invention provides a train positioning apparatus, including:
the first information acquisition module is used for acquiring line information of each line, wherein the line information comprises stations in uplink and downlink directions of the line;
the second information acquisition module is used for acquiring train arrival information of each platform of each current station, wherein the train arrival information comprises train information of each platform, namely the arrival of each station;
the on-road train information generating module is used for obtaining on-road train information of each line according to the line information and the train arrival information, wherein the on-road train information comprises a platform and arrival time of each train which is about to arrive at the station in the uplink and downlink directions of each line;
And the train position determining module is used for determining the position information of each train on each route according to the on-road train information.
In a third aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes a processor and a memory;
the memory is used for storing a computer program and transmitting the computer program to the processor;
the processor is adapted to perform a train positioning method according to the first aspect in accordance with instructions in the computer program.
In a fourth aspect, embodiments of the present invention provide a storage medium storing computer-executable instructions for performing a train localization method as described in the first aspect when executed by a computer processor.
In the foregoing, an embodiment of the present invention provides a train positioning method, an apparatus, a terminal device, and a storage medium, including the following steps: obtaining line information of each line, wherein the line information comprises stations in two directions of downlink on the line; acquiring train arrival information of each platform of each current station, wherein the train arrival information comprises train information of each platform, namely arrival at the station; according to the line information and the train arrival information, obtaining in-transit train information of each line, wherein the in-transit train information comprises a platform and arrival time of each train which is about to arrive at the station in the up-down two directions of each line; and determining the position information of each train on each line according to the on-road train information.
The embodiment of the invention obtains the on-road train information by obtaining the line information of each line and the train arrival information of each platform of each current station, and finally obtains the position information of each train on each line by the on-road train information.
Drawings
Fig. 1 is a flowchart of a train positioning method according to an embodiment of the present invention.
Fig. 2 is a flowchart of another train positioning method according to an embodiment of the present invention.
Fig. 3 is a schematic diagram for determining a train located section according to an embodiment of the present invention.
Fig. 4 is a flowchart of another train positioning method according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a train positioning device according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
The following description and the annexed drawings set forth in detail certain illustrative embodiments of the application so as to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments of the present application includes the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or terminal apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
Example one
As shown in fig. 1, fig. 1 is a flowchart of a train positioning method according to an embodiment of the present invention. The train positioning method provided by the embodiment of the invention can be executed by train positioning equipment, the train positioning equipment can be realized in a software and/or hardware mode, and the train positioning equipment can be formed by two or more physical entities or one physical entity. For example, the train positioning device can be a computer, an upper computer, a tablet, a server and other devices. In this embodiment, taking the integrated monitoring system as the train positioning device as an example, the method includes the following steps:
step 101, obtaining line information of each line, wherein the line information comprises stations in two directions of going up and down on the line.
In this embodiment, first, route information of each route needs to be acquired, where the route information of each route includes stops of each route in both uplink and downlink directions, and illustratively, the stop in the uplink direction of route a in the route information is { a1, a2, A3}, and the stop in the downlink direction is { A3, a2, a1 }. Wherein the route information may be obtained by a server. For the uplink direction and the downlink direction, the user can set according to actual needs, or according to the national standard document, the definition principle of the uplink direction and the downlink direction is as follows: east-west moving upward, east-west moving downward; the north-south direction indicates ascending and the south-south direction indicates descending.
And 102, acquiring train arrival information of each platform of each current station, wherein the train arrival information comprises the train information of each platform, namely the arrival to the station.
After the line information of each line is acquired, train arrival information of each platform of each current station is acquired, and the train arrival information comprises train information of each platform which is about to arrive at the station, such as arrival time of a train which is about to arrive at the station, a destination station of the train and train number of the train. It can be understood that each station is provided with at least two platforms, one platform is an ascending platform, and the other platform is a descending platform.
It should be further noted that the integrated monitoring system may poll the signal system for train arrival information every 500ms, or the signal system may actively push the train arrival information to the integrated monitoring system when the train location changes.
And 103, obtaining on-road train information of each line according to the line information and the train arrival information, wherein the on-road train information comprises a platform and arrival time of each train which is about to arrive at the station in the uplink and downlink directions of each line.
And then, further obtaining in-transit train information of each line according to the line information and the obtained train arrival information, wherein the in-transit train information comprises a platform and arrival time of each train which is about to arrive at the station in the uplink and downlink directions of each line. Specifically, in one embodiment, according to the train arrival information, the train information of each platform, that is, the train that will arrive at the station, can be determined, then the station and the route to which each platform belongs are further determined according to the route information, and finally, the platform at which each train will arrive at the station in the uplink and downlink directions of each route and the arrival time of each train at the platform can be obtained.
And step 104, determining the position information of each train on each line according to the on-road train information.
After the in-transit train information of each line is obtained, the position information of each train on each line can be determined according to the in-transit train information. Specifically, in one embodiment, the distance between each train and the corresponding platform can be calculated according to the arrival time of each train reaching the corresponding platform in the in-transit train information, and then the current interval of each train can be determined according to the distance, so that the position information of each train on each line can be obtained.
In one embodiment, after the position information of each train on each line is obtained, the position information of each train is sent to the dispatching platform, so that the dispatching platform can dispatch the trains according to the position information of the trains, the passenger transportation efficiency of rail transit is improved, or the current position of the train can be quickly determined according to the position information of the trains in the scene that the emergency rescue is needed, such as an earthquake or the loss of power of the trains, so that rescue teams can timely rush to the position of the train for rescue, and casualties are reduced.
As described above, in the embodiments of the present invention, the in-transit train information is obtained by obtaining the route information of each route and the train arrival information of each platform at each current station, and finally the position information of each train on each route is obtained by the in-transit train information, so that the real-time positioning of the train position is realized without adding additional equipment, and the technical problem that the real-time positioning of the train cannot be realized under the condition of low cost in the prior art is solved.
As shown in fig. 2, fig. 2 is a flowchart of another train positioning method provided in the embodiment of the present invention, including the following steps:
step 201, obtaining line information of each line, where the line information includes stations in two directions of downlink on the line.
Step 202, train arrival information of each platform of each current station is obtained, and the train arrival information comprises train information of each platform, namely arrival.
It should be further noted that, in an embodiment, the train information includes a destination station and an arrival time of the train to arrive at the station, and the train arrival information further includes a station to which each platform belongs. For example, in one embodiment, the train information includes destination stations of two trains to arrive at the station and arrival times of the two trains, and train arrival information T 'defining each station platform of the line' kComprises the following steps:
Figure BDA0003490396380000081
wherein, T'kDenotes the kth station OkTrain arrival information of siShows the station to which the station belongs,
Figure BDA0003490396380000082
respectively representing the arrival time, m, of the coming train and the next train1、m2Destination stations respectively representing the arriving train and the next train to follow, ck-1、ck-2Respectively representing the train number of the coming train and the train number of the next coming train.
And step 203, determining the uplink and downlink directions and the lines of each platform according to the train arrival information and the line information of each platform.
In this embodiment, first, the uplink and downlink directions and the route information of each station platform are determined according to the train arrival information and the route information of each station platform. Specifically, the line to which each platform belongs can be determined according to the destination station of the train to which the station is to be arrived in the train arrival information, then, the stations in the uplink and downlink directions of the line to which the station belongs are obtained from the corresponding line information further according to the line to which the station belongs, and finally, the uplink and downlink directions of each platform can be determined by combining the stations in the uplink and downlink directions of the line to which the station belongs according to the destination station in the train arrival information and the station to which the station belongs.
On the basis of the above embodiment, the step 203 of determining the uplink and downlink directions and the corresponding routes of each platform according to the train arrival information and the route information of each platform is specifically executed by steps 2031 to 2032, and includes:
step 2031, determining the route of each platform according to the route information and the destination station of the train to be arrived in the train arrival information of each platform.
Illustratively, in one embodiment, each line LjThe following route information:
Lj{ [ up: s1,s2,…,sn](ii) a [ downstream: sn,…;s2,s1]}
T 'for u stations, assuming there are u stations per line'uData, defined as
Figure BDA0003490396380000083
Figure BDA0003490396380000084
For each station OkFrom train information T 'per platform'kDestination station m of train to be arrived at1、m2At each line LjIf m is the corresponding station is searched in the line information1Or
Figure BDA0003490396380000091
The station belongs to the line Lj
Step 2032, determining the uplink and downlink directions of each platform according to the line information, the line to which each platform belongs and the train arrival information.
After the line to which the platform belongs is determined, corresponding line information is further obtained according to the line to which each platform belongs, and the uplink and downlink directions of each platform are determined in the line information according to the station to which each platform belongs in the train arrival information of each platform and the destination station of the train to be arrived at.
On the basis of the above embodiment, the route information includes serial numbers of each station of the route in both up and down directions, and the size of the serial number of the station is proportional to the distance between the station and a designated station on the route.
Illustratively, in the present embodiment, the line information L is definedjThe following were used:
Figure BDA0003490396380000092
wherein L isjThe j-th line is represented, and each line can be divided into an uplink direction and a downlink direction according to the running direction of the train.
Ascending: s1,s2…snDenotes s1To snThe direction is ascending;
descending: sn…s2,s1Denotes snTo s1The direction is downward;
xidenotes siNumber of station, 1 ≤ xiN (the number of stations n of the line), in this embodiment, s of the line is set1The station is a designated station, x at the moment1Has the smallest value of (a), xnThe value of (c) is maximum.
siIndicating a station, i indicates a station number, the value of which is xiAnd (5) the consistency is achieved.
liDenotes siStation and si-1Physical distance of station, constant,/1Corresponding s1Is the starting station in the up direction, at this time1=0。
Correspondingly, the step 2032 of determining the uplink and downlink directions of each station according to the route information, the route to which each station belongs, and the train arrival information is specifically executed in steps 20321 to 20323, and includes:
step 20321, obtain the first line information of the corresponding line according to the line to which each station belongs.
First, according to the line of each station, first line information of the corresponding line is acquired.
Step 20322, from the first route information, a first serial number of the station of each platform in the up-down two directions is determined, and a second serial number of the destination station of the train to be arrived at each platform in the up-down two directions is determined.
And then, further determining a first serial number of the station of each platform in the up-down two directions according to the serial number of each station in the up-down two directions in the first line information, and determining a second serial number of a target station of a train to be arrived at each platform in the up-down two directions. Illustratively, in one embodiment, the first line information LjIn the method, the station s of the platform is determinediFirst sequence number x ofiSimultaneously, the destination station m of the train to be arrived at is obtained in the first line information1、m2Second number x ofm1、xm2
Step 20323, determining the uplink and downlink directions of each sta according to the first sequence number and the second sequence number.
Finally, further according to the first sequence number xiAnd a second number xm1、xm2The uplink and downlink directions of the station are determined. Illustratively, in one embodiment, if x i<xm1Or xi<xm2If the station is in the uplink direction; if xi>xm1Or xi>xm2The station is the station in the downlink direction.
And step 204, obtaining basic train arrival information of each platform of each line according to the train arrival information, the uplink and downlink directions and the line of each platform.
And then, the basic train arrival information of each platform of each line can be further obtained according to the train arrival information, the uplink and downlink directions and the line of each platform. Illustratively, in one embodiment, the base train-to-station information defining each station is:
Figure BDA0003490396380000101
Tkdenotes the kth station OkB represents the uplink and downlink signs of the station, for example, when b is 0, the station is an uplink station, when b is 1, the station is a downlink station, or b is an uplink station and b is a downlink station.
And step 205, obtaining in-transit train information of each line according to the base train arrival information, wherein the in-transit train information comprises a station platform and arrival time of each train to be arrived at the station in the uplink and downlink directions of each line.
On the basis of the above embodiment, the obtaining of the in-transit train information of each route in step 205 according to the base train arrival information is specifically executed by steps 2051 to 2052, and includes:
And step 2051, obtaining first train arrival information of each line according to the basic train arrival information, wherein the first train arrival information comprises arrival time of each platform of each line, namely the train which will arrive at the station.
The base train arrival information comprises the arrival time of the train which is about to arrive at each platform, and the base train arrival information of each platform on each line is summarized, so that the arrival time of the train which is about to arrive at each platform on each line, namely the first train arrival information, can be obtained. In one embodiment, the first train-to-station information D'LjThe acquisition mode is as follows:
summarizing basic train arrival information T of each platform on each linekTo obtain
Figure BDA0003490396380000102
According to
Figure BDA0003490396380000111
Obtaining first train arrival information D'Lj
D′Lj=[T1,c1-1,tc1-1,c1-2,tc1-2;…Tu,cu-1,tcu-1,cu-2,tcu-2]
Wherein, ck-1、ck-2Respectively representing the train numbers, tc, of the coming train and the next train to the station at the kth stationk-1、tck-2Respectively representing the arrival time of the coming train and the next train at the kth platform, wherein k is more than or equal to 1 and less than or equal to u.
And step 2052, filtering the first train arrival information of each line to obtain the in-transit train information of each line.
First train-to-station information D 'for each obtained line' LjFurther, the first train arrival information D'LjFiltration is carried out. Specifically, for first train to station information D'LjReserving the train number appearing for the first time, and removing the repeated train number appearing for the subsequent time to obtain the in-transit train information D of each lineLjThe data of (2).
In one embodiment, in-transit train information for each route is defined
Figure BDA0003490396380000112
Comprises the following steps:
Figure BDA0003490396380000113
wherein, cyIndicating the train number of the y-th train,
Figure BDA0003490396380000114
and z is the number of the trains, and y is more than or equal to 1 and less than or equal to z.
And step 206, determining the position information of each train on each line according to the on-road train information.
On the basis of the above embodiment, the step 206 of determining the location information of each train on each line according to the in-transit train information is specifically executed by the steps 2061 to 2062, and includes:
step 2061, calculating the arrival distance between each platform and the train to be arrived on each line according to the train-in-transit information.
Because the in-transit train information of each line comprises the arrival time of each train on each line, the arrival distance between each platform on each line and the train to be arrived at the station can be calculated according to the arrival time and the running speed of the train.
Based on the above embodiment, the step 2061 of calculating the arrival distance between each station platform and the train to be arrived at the station on each line according to the in-transit train information is specifically performed by the steps 20611-20612, and includes:
and step 20611, calculating the average running speed of each train on each line in the corresponding interval of each platform.
Firstly, the average running speed of each train on each line in the corresponding interval of each platform is calculated. In one embodiment, the average running speed of each train in the section corresponding to each platform is defined as
Figure BDA0003490396380000121
Represents Ok-1Station s corresponding to platformi-1To OkStation s corresponding to platformiAverage running speed of (2).
Figure BDA0003490396380000122
Wherein liRepresents Ok-1Station s corresponding to platformi-1To OkStation s corresponding to platformiThe distance of (a) to (b),
Figure BDA0003490396380000123
showing the train's subordination station s on the dayi-1To station siWhen averagedIn between, the average time can be obtained from the signal system.
Step 20612, calculating the arrival distance between each platform and the train to be arrived at the station on each line according to the average running speed and the arrival time of the train to be arrived at each platform on each line in the in-transit train information.
And then, multiplying the average running speed of each train running in the interval corresponding to each platform by the arrival time of the train which is about to arrive at the corresponding platform to obtain the arrival distance between each platform and the train which is about to arrive at the station on each line.
In one embodiment, the y-th train and the upcoming O are definedkDistance to station between stations
Figure BDA0003490396380000124
Figure BDA0003490396380000125
Wherein, cyIndicating the number of trains of the y-th train, tcyIndicating that the y-th train is about to arrive at OkThe arrival time of a station, i.e. how long it has arrived.
Step 2062, determining the position information of each train on each line according to the arrival distance.
After the arrival distance between each platform and the train to be arrived at the station on each line is obtained, the current position information of each train on each line can be determined according to the arrival distance.
In one embodiment, the determining the location information of each train on each line based on the distance to the station in step 2062 is specifically performed by steps 20621-20622, including:
step 20621, calculating the proportion of each arrival distance in the interval corresponding to the corresponding station.
Definition cySection q to which train belongsy,cyPercentage information p of train sectiony
As shown in FIG. 3, if
Figure BDA0003490396380000126
Q is thenyStation(s)i-1And station siAn interval;
Figure BDA0003490396380000127
if it is not
Figure BDA0003490396380000128
The calculation is stopped.
Step 20622, determining the position information of each train on each line according to each specific gravity.
Key data G defining the y-th on-road train cy
Gcy=[cy,Ocy,qy,py]
Wherein, OcyIs the platform that the y-th on-road train is about to reach.
Defining the current calculation time node of the line and the key array information of all on-road trains
Figure BDA0003490396380000131
I.e. the real-time position information of all on-road trains on the line.
Figure BDA0003490396380000132
As shown in fig. 4, fig. 4 is a flowchart of a train positioning method provided in an embodiment of the present invention, including the following steps:
301, obtaining line information of each line, wherein the line information comprises stations in two directions of downlink on the line;
step 302, obtaining train arrival information of each platform of each current station, wherein the train arrival information comprises the train information of each platform, namely the arrival of the train;
303, obtaining in-transit train information of each line according to the line information and train arrival information, wherein the in-transit train information comprises a platform and arrival time of each train which is about to arrive at the station in the uplink and downlink directions of each line;
and step 304, determining the position information of each train on each line according to the on-road train information.
And 305, adjusting the preset train operation diagram in real time according to the position information of each train on each line.
In one embodiment, after the position information of each train on each line is obtained, the position information of each train in each line is compared with the estimated running position of each train in a preset train running chart, if the deviation is greater than a preset value, the train running table of the line is adjusted in real time, and the delay reason of the train at each station can be considered in the adjusting process, for example, when the number of people entering the station in the time interval that two adjacent trains reach is greater than the train carrying capacity, the peak delay is realized; if the number of people entering the station is less than the carrying capacity, the delay is caused by the sudden situation possibly, and the train operation diagram is adjusted according to different delay reasons, so that the operation efficiency of the train and the passenger conveying capacity are improved.
Example two
As shown in fig. 5, fig. 5 is a schematic structural diagram of a train positioning device provided in an embodiment of the present invention, including:
a first information obtaining module 401, configured to obtain line information of each line, where the line information includes stations in two directions, namely uplink and downlink;
a second information obtaining module 402, configured to obtain train arrival information of each platform at each current station, where the train arrival information includes train information that each platform is to arrive at;
the in-transit information generating module 403 is configured to obtain in-transit train information of each route according to the route information and train arrival information, where the in-transit train information includes a station platform and arrival time of each train at which each train is to arrive at the station in the uplink and downlink directions of each route;
a train position determining module 404, configured to determine position information of each train on each line according to the in-transit train information.
On the basis of the above embodiment, the in-transit information generating module 403 is configured to obtain in-transit train information of each route according to the route information and the train arrival information, and includes:
the system comprises a plurality of platforms, a control unit and a control unit, wherein the control unit is used for determining the up-down direction and the line of each platform according to the train arrival information and the line information of each platform; obtaining basic train arrival information of each platform of each line according to the train arrival information, the uplink and downlink directions and the line to which the train arrives at each platform of each line; and obtaining the in-transit train information of each line according to the arrival information of the basic trains.
On the basis of the above embodiment, the train information includes the destination station and the arrival time of the train to arrive at the station, and the train arrival information also includes the station to which each platform belongs.
On the basis of the above embodiment, the on-route information generating module 403 is configured to determine the uplink and downlink directions and the routes of each platform according to the train arrival information and the route information of each platform, and includes:
the system comprises a route determining module, a route determining module and a route determining module, wherein the route determining module is used for determining a route of each platform according to route information and a target station of a train to be arrived in the train arrival information of each platform; and determining the uplink and downlink directions of each platform according to the line information, the line of each platform and the train arrival information.
On the basis of the embodiment, the line information comprises serial numbers of each station of the line in the up-down direction and the down-down direction, and the size of the serial number of the station is in direct proportion to the distance between the station and the designated station on the line;
correspondingly, the on-road information generating module 403 is configured to determine the uplink and downlink directions of each platform according to the line information, the line to which each platform belongs, and the train arrival information, and includes:
the system comprises a first line information acquisition unit, a second line information acquisition unit and a control unit, wherein the first line information acquisition unit is used for acquiring first line information of a corresponding line according to the line of each station; determining a first serial number of a station of each platform in the up-down two directions and a second serial number of a target station of a train to be arrived at each platform in the up-down two directions from the first line information; and determining the uplink and downlink directions of each station according to the first sequence number and the second sequence number.
On the basis of the above embodiment, the in-transit information generating module 403 is configured to obtain in-transit train information of each route according to the base train arrival information, and includes:
the system comprises a base train arrival information acquisition unit, a train arrival information acquisition unit and a train arrival information acquisition unit, wherein the base train arrival information acquisition unit is used for acquiring first train arrival information of each line according to the base train arrival information, and the first train arrival information comprises arrival time of each platform of each line, namely a train which will arrive at a station; and filtering the first train arrival information of each line to obtain the in-transit train information of each line.
On the basis of the above embodiment, the train position determining module 404 is configured to determine the position information of each train on each line according to the in-transit train information, and includes:
the system comprises a train information acquisition unit, a station acquisition unit and a station acquisition unit, wherein the train information acquisition unit is used for acquiring train information of each station on each line; and determining the position information of each train on each line according to the station-to-station distance.
On the basis of the above embodiment, the train position determining module 404 is configured to calculate an arrival distance between each platform and an upcoming train on each line according to the in-transit train information, and includes:
the system comprises a control center, a plurality of trains, a plurality of stations and a plurality of trains, wherein the control center is used for calculating the average running speed of each train on each line in the interval corresponding to each station; and calculating the arrival distance between each platform on each line and the train to be arrived according to the average running speed and the arrival time of each platform, namely the train to be arrived at the station, of each line in the in-transit train information.
On the basis of the above embodiment, the train position determining module 404 is configured to determine the position information of each train on each line according to the arrival distance, and includes:
the system is used for calculating the proportion of each arrival distance in the interval corresponding to the corresponding station; and determining the position information of each train on each line according to each specific gravity.
On the basis of the embodiment, the train operation diagram adjusting device further comprises an operation diagram adjusting module used for adjusting the preset train operation diagram in real time according to the position information of each train on each line.
EXAMPLE III
The present embodiment further provides a terminal device, as shown in fig. 6, a terminal device 50, where the terminal device includes a processor 500 and a memory 501;
the memory 501 is used for storing a computer program 502 and transmitting the computer program 502 to the processor;
the processor 500 is configured to execute the steps in one train positioning method embodiment described above according to the instructions in the computer program 502.
Illustratively, the computer program 502 may be partitioned into one or more modules/units that are stored in the memory 501 and executed by the processor 500 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 502 in the terminal device 50.
The terminal device 50 may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The terminal device 50 may include, but is not limited to, a processor 500 and a memory 501. Those skilled in the art will appreciate that fig. 6 is merely an example of a terminal device 50 and does not constitute a limitation of terminal device 50 and may include more or less components than those shown, or combine certain components, or different components, for example, terminal device 50 may also include input-output devices, network access devices, buses, etc.
The Processor 500 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 501 may be an internal storage unit of the terminal device 50, such as a hard disk or a memory of the terminal device 50. The memory 501 may also be an external storage terminal device of the terminal device 50, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are equipped on the terminal device 50. Further, the memory 501 may also include both an internal storage unit and an external storage device of the terminal device 50. The memory 501 is used for storing the computer programs and other programs and data required by the terminal device 50. The memory 501 may also be used to temporarily store data that has been output or is to be output.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing computer programs.
Example four
Embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a train localization method, the method including the steps of:
obtaining line information of each line, wherein the line information comprises stations in two directions of going up and down on the line;
acquiring train arrival information of each platform of each current station, wherein the train arrival information comprises train information of each platform, namely arrival at the station;
according to the line information and the train arrival information, obtaining in-transit train information of each line, wherein the in-transit train information comprises a platform and arrival time of each train which is about to arrive at the station in the up-down two directions of each line;
and determining the position information of each train on each line according to the on-road train information.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, adaptations, and substitutions are possible, without departing from the scope of the embodiments of the present invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.

Claims (13)

1. A train positioning method is characterized by comprising the following steps:
obtaining line information of each line, wherein the line information comprises stations in uplink and downlink directions of the line;
acquiring train arrival information of each platform of each current station, wherein the train arrival information comprises train information of each platform, namely arrival at the station;
obtaining in-transit train information of each line according to the line information and the train arrival information, wherein the in-transit train information comprises a platform at which each train in the up-down two directions of each line is to arrive and arrival time;
and determining the position information of each train on each line according to the on-road train information.
2. The train positioning method according to claim 1, wherein the obtaining the in-transit train information of each route according to the route information and the train arrival information comprises:
determining the uplink and downlink directions and the lines of each platform according to the train arrival information and the line information of each platform;
obtaining basic train arrival information of each platform of each line according to the train arrival information of each platform, the uplink and downlink directions and the line to which the station belongs;
And obtaining the in-transit train information of each line according to the arrival information of the basic train.
3. The train positioning method according to claim 2, wherein the train information includes a destination station of the train to be arrived at and the arrival time, and the train arrival information further includes the station of each platform.
4. The method according to claim 3, wherein the determining the uplink and downlink directions and the corresponding line of each platform according to the train arrival information and the line information of each platform comprises:
determining the line of each platform according to the line information and the destination station of the train to be arrived in the train arrival information of each platform;
and determining the uplink and downlink directions of each platform according to the line information, the line of each platform and the train arrival information.
5. The train positioning method according to claim 4, wherein the route information includes serial numbers of each station of the route in both up and down directions, and the size of the serial number of the station is proportional to the distance between the station and a designated station on the route;
Correspondingly, the determining the uplink and downlink directions of each platform according to the line information, the line to which each platform belongs, and the train arrival information includes:
acquiring first line information of a corresponding line according to the line of each station;
determining a first serial number of a station of each platform in the up-down two directions and a second serial number of a target station of a train to be arrived at the station of each platform in the up-down two directions from the first line information;
and determining the uplink and downlink directions of each station according to the first sequence number and the second sequence number.
6. The train positioning method according to claim 3, wherein the obtaining the in-transit train information of each route according to the base train arrival information comprises:
obtaining first train arrival information of each line according to the basic train arrival information, wherein the first train arrival information comprises arrival time of each platform of each line, namely a train which will arrive at a station;
and filtering the first train arrival information of each line to obtain the in-transit train information of each line.
7. The method according to claim 6, wherein the determining the position information of each train on each route according to the on-train information comprises:
according to the on-road train information, calculating the arrival distance between each platform and the train to be arrived at the station on each line;
and determining the position information of each train on each line according to the arrival distance.
8. The method of claim 7, wherein calculating the arrival distance between each station platform and the upcoming train on each line based on the in-transit train information comprises:
calculating the average running speed of each train on each line in the corresponding interval of each platform;
and calculating the arrival distance between each platform on each line and the train to be arrived according to the average running speed and the arrival time of the train to be arrived at each platform on each line in the in-transit train information.
9. The train positioning method according to claim 8, wherein said determining the position information of each train on each line according to the arrival distance comprises:
Calculating the proportion of each arrival distance in the interval corresponding to the corresponding station;
and determining the position information of each train on each line according to each specific gravity.
10. The train positioning method according to claim 1, further comprising the steps of:
and adjusting the preset train operation diagram in real time according to the position information of each train on each line.
11. A train positioning device, comprising:
the first information acquisition module is used for acquiring line information of each line, wherein the line information comprises stations in uplink and downlink directions of the line;
the second information acquisition module is used for acquiring train arrival information of each platform of each current station, wherein the train arrival information comprises train information of each platform, namely the arrival of each station;
the on-road train information generating module is used for obtaining on-road train information of each line according to the line information and the train arrival information, wherein the on-road train information comprises a platform and arrival time of each train which is about to arrive at the station in the uplink and downlink directions of each line;
And the train position determining module is used for determining the position information of each train on each route according to the on-road train information.
12. A terminal device, characterized in that the terminal device comprises a processor and a memory;
the memory is used for storing a computer program and transmitting the computer program to the processor;
the processor is adapted to perform a train localization method according to any of claims 1-10 according to instructions in the computer program.
13. A storage medium storing computer executable instructions for performing a train localization method according to any one of claims 1-10 when executed by a computer processor.
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