CN116331309A - Train position determining system and method for cooperative train-road alarm - Google Patents
Train position determining system and method for cooperative train-road alarm Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/40—Handling position reports or trackside vehicle data
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
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- 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
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Abstract
The invention provides a train position determining system and method for cooperative train-road alarming, which belong to the field of railway communication, and locomotive comprehensive wireless communication equipment broadcasts train approaching early warning information and sends train number checking information to a cooperative train-road alarming platform; the train route cooperative alarm ground equipment is used for receiving train approaching early warning information, extracting locomotive heartbeat information from the train approaching early warning information, and transmitting the locomotive heartbeat information to the train route cooperative alarm platform through a transmission network, wherein the locomotive heartbeat information comprises locomotive attribute information and locomotive position information; and the train-road cooperative alarm platform determines the train position according to the train number checking information and the locomotive heartbeat information. According to the invention, the train number checking information and the locomotive heartbeat information are uploaded to the train-to-train cooperative alarm platform through the locomotive comprehensive wireless communication equipment and the train-to-train cooperative alarm ground equipment, so that the train position is determined, a new positioning device is not required to be constructed on the train, the cost is reduced, and the operability is improved.
Description
Technical Field
The invention relates to the technical field of railway communication, in particular to a train position determining system and method for train cooperative alarming.
Background
As the speed of the railway train is continuously improved and the driving density is increasingly increased, not only is the high-speed development of socioeconomic driven, but also higher requirements are put forward for monitoring the operation environment along the railway. On the one hand, a geological disaster monitoring system, a fence (land) intrusion alarm system, a limit intrusion alarm system and a high-speed railway train running environment safety monitoring platform are required to be built, and various disaster monitoring alarm information is integrated comprehensively, so that a unified command, scientific monitoring and coordination ordered train-way cooperative alarm system is established, and the railway running safety protection level is improved; on the other hand, when a line alarm occurs, alarm information is accurately transmitted to the related running train. For this reason, it is necessary to precisely determine the position of the running train.
In the prior art, most of the information is obtained through a track circuit and a transponder at the front end of a train control system, a TDCS (railway dispatch command information management system) and a TDMS (transportation dispatch management system) at the rear end, and a train cooperative alarm system cannot obtain position information from the train control system. If the satellite positioning position acquisition device is installed on the train, the position information is transmitted to the train cooperative alarm system through the wireless transmission system, higher cost is generated, and the operability is poor.
Disclosure of Invention
The invention provides a train position determining system and method for a cooperative train alarm, which are used for solving the defects that in the prior art, a satellite positioning and the like acquiring device is arranged on a train, and position information is transmitted to the cooperative train alarm system through a wireless transmission system, so that higher cost is generated and operability is poor.
The invention provides a train position determining system for cooperative train-road alarming, which comprises locomotive comprehensive wireless communication equipment, at least one ground equipment for cooperative train-road alarming and a cooperative train-road alarming platform;
the locomotive comprehensive wireless communication equipment is arranged on the running train and is used for broadcasting train approaching early warning information and sending train number checking information to the train cooperative warning platform;
the train route cooperative alarm ground equipment is arranged along a train route and is used for receiving the train approaching early warning information, extracting locomotive heartbeat information from the train approaching early warning information and transmitting the locomotive heartbeat information to the train route cooperative alarm platform through a transmission network, wherein the locomotive heartbeat information comprises locomotive attribute information and locomotive position information;
the train-road cooperative alarm platform is used for determining the train position according to the train number checking information and the locomotive heartbeat information.
According to the train position determining system for the cooperative train-road alarm provided by the invention, the locomotive comprehensive wireless communication equipment comprises a first service processing unit and a second service processing unit;
the first service processing unit is used for determining the train approaching early warning information according to the train position information, the train state information and the train positioning information and broadcasting the train approaching early warning information;
the second service processing unit is used for acquiring the alarm information transmitted by the vehicle-road cooperative alarm platform, and displaying and broadcasting the alarm information.
According to the train position determining system for the cooperative road warning provided by the invention, the locomotive attribute information at least comprises a locomotive number, a train number and a speed, and the locomotive position information at least comprises a line section name, a kilometer post and a longitude and latitude; the alarm information at least comprises dangerous situation alarm time, dangerous situation category, dangerous situation occurrence place and dangerous situation occurrence place kilometer sign.
According to the train position determining system for the cooperative alarm of the train and the road, the train position is determined according to the train number checking information and the locomotive heartbeat information, and the train position determining system comprises the following steps:
Extracting first locomotive position information of a target train from the train number checking information;
extracting second locomotive position information of the target train from at least one locomotive heartbeat information;
determining the running direction of the locomotive according to the locomotive attribute information;
obtaining the estimated position of the target train according to the running direction of the locomotive;
and screening the first locomotive position information and the second locomotive position information according to the estimated position to determine the position of the target train.
According to the train position determining system for the train path cooperative alarm, which is provided by the invention, the train path cooperative alarm platform is also used for determining the distance between the running train and the target place according to the train position;
wherein the determining the distance between the running train and the target location according to the train position comprises:
if the train position corresponding to the running train only contains longitude and latitude information, fitting the longitude and latitude information into first kilometer scale information;
and determining the distance between the running train and the target place based on the first kilometer scale information and the second kilometer scale information corresponding to the predetermined target place.
According to the train position determining system for the cooperative alarm of the train route provided by the invention, the longitude and latitude information is fitted into first kilometer post information, and the train position determining system comprises:
acquiring longitude and latitude corresponding to the kilometer post of each train line based on a preset distance interval to obtain a line database, wherein the line database is used for representing the corresponding relation between the kilometer post and the longitude and latitude;
determining a target train route corresponding to the longitude and latitude information according to the route database;
and determining a kilometer post corresponding to the longitude and latitude information according to the distance between the longitude and latitude corresponding to the target train line and the longitude and latitude information so as to complete fitting.
The invention provides a train position determining system for cooperative vehicle-road alarming, which comprises an antenna feeder unit, a receiving unit, a control unit, a cooperative vehicle-road alarming platform interface unit and a power supply unit, wherein the antenna feeder unit is connected with the receiving unit;
the receiving unit is used for acquiring the train approaching early warning information through the antenna feeder unit, decoding the train approaching early warning information and then sending the decoded train approaching early warning information to the control unit;
The control unit is used for extracting the locomotive heartbeat information from the decoded train approaching early warning information;
the vehicle-road cooperative alarm platform interface unit is used for uploading the heartbeat information of the locomotive through a railway intranet after registration;
the power supply unit is used for supplying power to the receiving unit, the control unit and the vehicle-road cooperative alarm platform interface unit.
According to the train position determining system for the cooperative road warning provided by the invention, the type of the power supply unit and the installation height of the antenna feeder unit are determined based on the installation place of the cooperative road warning ground equipment, and the installation place and the installation interval of the cooperative road warning ground equipment are determined based on the installation environment.
According to the train position determining system for the cooperative warning of the train route, the train approach early warning information is broadcasted, and the train position determining system comprises:
broadcasting the train approaching early warning information according to a preset running distance interval or a preset running time interval.
The invention also provides a train position determining method for the cooperative alarm of the train and the road, which comprises the following steps:
determining train approaching early warning information based on locomotive comprehensive wireless communication equipment on an operating train, broadcasting the train approaching early warning information, and sending train number checking information to the train cooperative warning platform;
Receiving the train approaching early warning information based on train path cooperative warning ground equipment along a train path, extracting locomotive heartbeat information from the train approaching early warning information, and transmitting the locomotive heartbeat information to the train path cooperative warning platform through a transmission network, wherein the locomotive heartbeat information comprises locomotive attribute information and locomotive position information;
and the train-road cooperative alarm platform determines the train position according to the train number checking information and the locomotive heartbeat information.
According to the train position determining system and method for the cooperative train alarm, the train number checking information and the locomotive heartbeat information are uploaded to the cooperative train alarm platform through the comprehensive wireless communication equipment of the locomotive and the cooperative train alarm ground equipment, so that the train position is determined, a new positioning device is not required to be constructed on a train, the cost is reduced, and the operability is improved.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a train position determination system for a collaborative warning of a train route provided by the present invention;
FIG. 2 is a schematic block diagram of a locomotive integrated wireless communication device provided by the present invention;
FIG. 3 is a schematic flow chart of determining the position of a train provided by the invention;
FIG. 4 is a schematic flow chart of determining a distance between a running train and a target location provided by the present invention;
fig. 5 is a schematic flow chart of step S420 in fig. 4 according to the present invention;
FIG. 6 is a schematic diagram of a workflow of the vehicle-road cooperative alarm ground equipment provided by the invention;
FIG. 7 is a schematic block diagram of a road cooperative alarm ground device provided by the invention;
fig. 8 is a schematic flow chart of a train position determining method for a cooperative train-road alarm.
Reference numerals:
the system comprises 1-locomotive comprehensive wireless communication equipment, 110-first service processing units, 120-second service processing units, 2-vehicle-road cooperative alarm ground equipment, 210-antenna feeder units, 220-receiving units, 230-control units, 240-vehicle-road cooperative alarm platform interface units, 250-power supply units, 260-alarm units and 3-vehicle-road cooperative alarm platforms.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on those shown in the drawings, are merely for convenience in describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the embodiments of the present application will be understood by those of ordinary skill in the art in a specific context.
In the examples herein, a first feature "on" or "under" a second feature may be either the first and second features in direct contact, or the first and second features in indirect contact via an intermediary, unless expressly stated and defined otherwise. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
FIG. 1 is one of the functional block diagrams of a train position determining system for a cooperative road warning provided by the invention, and as shown in FIG. 1, the invention provides a train position determining system for a cooperative road warning, which comprises a locomotive integrated wireless communication device 1, at least one ground device 2 for a cooperative road warning and a cooperative road warning platform 3;
the locomotive comprehensive wireless communication equipment 1 is arranged on an operating train and is used for broadcasting train approaching early warning information and sending train number checking information to the train cooperative alarm platform;
the train route cooperative alarm ground equipment 2 is arranged along a train route and is used for receiving the train approaching early warning information, extracting locomotive heartbeat information from the train approaching early warning information and transmitting the locomotive heartbeat information to the train route cooperative alarm platform 3 through a transmission network, wherein the locomotive heartbeat information comprises locomotive attribute information and locomotive position information;
the train-road cooperative alarm platform 3 is used for checking the train number information and the locomotive heartbeat information and determining the train position.
Optionally, the train number checking information includes basic information such as a train number, an operating speed and the like of an operating train, and also includes position information such as a kilometer sign, longitude and latitude, a road crossing number, a line code, a cell ID, a position ID and the like.
Specifically, the locomotive integrated wireless communication equipment 1 is installed on an operating train, is existing equipment arranged in the existing railway equipment system, and is used for running state information such as train number, speed and the like through position information such as an operating section, kilometer posts and the like of train operation, which are obtained from a train operation monitoring device through a TAX box device; the locomotive integrated wireless communication device 1 is also provided with a satellite positioning unit, and can acquire position information such as longitude and latitude. The train operation monitoring device obtains locomotive operation information such as kilometer post, train number, speed, train number and the like of the locomotive.
The TAX box provides information sources for the wireless train number checking system, and the train number information is periodically transmitted to the locomotive data acquisition encoder through the RS-485 interface.
Optionally, the train operation monitoring device can be an LKJ-2000 type train operation monitoring recording device, and the basic components comprise a main case and two displays. The speed information is from a photoelectric speed sensor, the locomotive signal information is from a general locomotive signal, the pressure monitoring detects the pressure of a locomotive brake cylinder and the pressure of a balancing cylinder besides the pressure of a train pipe, the pressure sensor can adopt a TQG type locomotive pressure transmitter, and the pointer type speed indication can adopt a ZL type or EGZ3/8 type double-needle speedometer.
Specifically, the locomotive integrated wireless communication device 1 is provided with an LBJ (train protection alarm device), a power interface, an antenna interface, a TAX box/CIR data interface and a maintenance data interface of an LBJ functional unit are connected to corresponding interfaces of the CIR B subframe, and each time the train runs a 200 m LBJ device, the information containing the contents of train number, locomotive number, kilometer sign, longitude and latitude and the like is sent by a wireless mode.
It can be understood that the invention respectively uploads the train number checking information and the locomotive heartbeat information to the train cooperative alarm platform 3 through the locomotive comprehensive wireless communication equipment 1 and the train cooperative alarm ground equipment 2 so as to determine the train position, and a new positioning device is not required to be constructed on the train, so that the cost is reduced and the operability is improved. The road cooperative alarm ground equipment 2 is newly added equipment, and the existing network and train approach early warning information broadcasted by a vehicle are used, so that new positioning equipment is not required to be installed on a train, a network transmission channel is not required to be deployed on the ground, the equipment cost is low, in addition, the road cooperative alarm ground equipment 2 uses the existing railway network, and the safety coefficient is high.
FIG. 2 is a schematic block diagram of a locomotive integrated wireless communication device according to the present invention, and as shown in FIG. 2, based on the above embodiment, the locomotive integrated wireless communication device 1 includes a first service processing unit 110 and a second service processing unit 120 as an alternative embodiment;
The first service processing unit 110 is configured to determine the train approaching early warning information according to the train position information, the train state information and the train positioning information, and broadcast the train approaching early warning information; the train position information comprises information of the running section, the kilometer post and the like of the running of the train, and is acquired from a train running monitoring device based on a TAX box device; the train state information comprises state information such as running locomotive number, train number, speed and the like, and is acquired from a train running monitoring device based on the TAX box device; the train positioning information comprises longitude and latitude information of train operation and is obtained from a satellite positioning unit.
The second service processing unit 120 is configured to obtain the alarm information transmitted by the vehicle-road cooperative alarm platform 3, and display and broadcast the alarm information;
the locomotive attribute information at least comprises a locomotive number, a train number and a speed, and the locomotive position information at least comprises a line section name, a kilometer post and longitude and latitude; the alarm information at least comprises dangerous situation alarm time, dangerous situation category, dangerous situation occurrence place and dangerous situation occurrence place kilometer sign.
Specifically, the first service processing unit 110 is an existing function of the locomotive integrated wireless communication device 1, and the second service processing unit 120 is a vehicle-road cooperative alarm program function added to the locomotive integrated wireless communication device 1, and is mainly used for realizing registration to the vehicle-road cooperative alarm platform 3, receiving alarm pictures and data sent by the vehicle-road cooperative alarm platform 3 and sending out an audible and visual alarm prompt function.
The locomotive integrated wireless communication device 1 is abbreviated as CIR and is special communication device for railways. The CIR equipment is used as an upgrade product of a traditional wireless train-tuning radio station, is necessary equipment for ensuring driving safety, and is a comprehensive platform for realizing vehicle-road data and voice transmission.
The locomotive integrated wireless communication device 1 in the invention has the following functions: the registration information is sent to a vehicle-road cooperative alarm platform 3, and the vehicle-road system alarm platform acquires information of a locomotive related to the running of a road; sending locomotive heartbeat information including locomotive number, train number, longitude and latitude, kilometer post and line name to the cooperative alarm platform 3; the GSM-R network is used for receiving alarm information of the vehicle-road cooperative alarm platform 3 and carrying out interface display and voice broadcast on dangerous information alarm time, dangerous information category, dangerous information occurrence place and dangerous information occurrence place kilometer post; receiving an alarm picture of the vehicle-road cooperative alarm platform 3 through a GSM-R network, and displaying the received alarm picture; the radio station broadcast receives the alarm information sent by the vehicle-road cooperative alarm ground equipment 2, and can carry out interface display and sound broadcast on dangerous information alarm time, dangerous information category, dangerous information occurrence place and dangerous information occurrence place kilometer sign.
It can be understood that the first service processing unit 110 and the second service processing unit 120 are provided, so that the locomotive integrated wireless communication device 1 has an alarm function, realizes cooperative alarm of a vehicle and a road, does not need to add new devices, and reduces cost.
FIG. 3 is a schematic flow chart of determining the position of a train provided by the invention; as shown in fig. 3, optionally, determining the train position according to the train number checking information and the locomotive heartbeat information includes:
s310, extracting first locomotive position information of a target train from the train number checking information;
s320, extracting second locomotive position information of the target train from at least one locomotive heartbeat information;
s330, determining the running direction of the locomotive according to the locomotive attribute information;
s340, obtaining the estimated position of the target train according to the running direction of the locomotive;
s350, screening the first locomotive position information and the second locomotive position information according to the estimated position, and determining the position of the target train.
Specifically, in order to ensure reliability, the vehicle-road cooperative alarm platform receives position information through two channels of vehicle number checking information and vehicle-road cooperative alarm ground equipment in a redundant manner, and train approach early warning information sent by a locomotive may be received by a plurality of vehicle-road cooperative alarm ground equipment, and the plurality of vehicle-road cooperative alarm ground equipment all report the position information to the cooperative alarm platform, so that the position of the locomotive may be disturbed front and back due to the influence of a transmission path and a network when the data arrive successively. The collaborative alarm platform calculates the running direction according to the current position and running speed of the locomotive, predicts the position of the train according to time, filters out obvious unreasonable position information caused by the reasons of large network delay and the like, for example, filters out the back-off position data which does not accord with the running direction of the train according to the principle that the train cannot back-off, determines the accurate position of the train, and filters out the disturbance before and after the position of the train.
It can be understood that the train-path cooperative alarm platform 3 acquires the train position information through two channels and finally determines the train position, so that the accuracy of position determination is improved.
FIG. 4 is a schematic flow chart of determining a distance between a running train and a target location, as shown in FIG. 4, according to the present invention, the road cooperative alarm platform is further configured to determine a distance between the running train and the target location according to the train position, as an alternative embodiment based on the above embodiment;
wherein the determining the distance between the running train and the target location according to the train position comprises:
s410, if the train position corresponding to the running train only comprises longitude and latitude information, fitting the longitude and latitude information into first kilometer post information;
s420, determining the distance between the running train and the target place based on the first kilometer scale information and the second kilometer scale information corresponding to the predetermined target place.
Specifically, kilometer post and longitude and latitude calculation can be adopted when calculating the distance between the running train and the target site. Because the straight line distance between the target place and the running train is calculated by using the longitude and latitude, and the railway line is limited by the environment and is difficult to be a straight line in construction, the distance calculated by using the longitude and latitude is generally inaccurate, kilometer posts are generally adopted in calculation, and if only the longitude and latitude position is used, the longitude and latitude are generally fitted into the kilometer post for calculation, so that the accuracy of the distance calculation is improved.
Alternatively, the target site may be a dangerous situation occurrence site, and the position of the target site may be represented by a dangerous situation occurrence kilometer sign.
It can be appreciated that the invention provides a technical scheme for calculating the distance between the running train and the target place, and the accuracy of distance calculation can be improved by fitting longitude and latitude information into kilometer posts.
Fig. 5 is a schematic flow chart of step S420 in fig. 4 provided in the present invention, as shown in fig. 5, based on the above embodiment, as an alternative embodiment,
fitting the longitude and latitude information to first kilometer post information comprises:
s510, acquiring longitude and latitude corresponding to the kilometer post of each train line based on a preset distance interval to obtain a line database, wherein the line database is used for representing the corresponding relation between the kilometer post and the longitude and latitude;
alternatively, the longitude and latitude of the corresponding point of the kilometer post can be acquired at intervals of a certain distance d1 (generally 100 meters) along the railway line, so that a database of the corresponding relationship between the kilometer post and the longitude and latitude is obtained, one railway line corresponds to one data set, a plurality of data sets of a plurality of lines are combined into one large line database, and the line database is used as a basic data set for determining the position of a train.
S520, determining a target train route corresponding to the longitude and latitude information according to the route database;
optionally, determining the target trainline includes two cases:
a, performing primary calculation. And matching and screening the longitude and latitude information to be fitted and the longitude and latitude in the basic data set, matching out similar longitudes and latitudes, calculating a linear distance d2 between the similar longitudes and latitudes, and taking a line corresponding to the longitude and latitude with the nearest distance (with the d2 being smaller than 200 meters) as a train line corresponding to the longitude and latitude to be fitted, namely a target train line.
And b, calculating again. If the train data is calculated before, only checking whether the longitude and latitude to be fitted and the longitude and latitude of less than 200 m exist in the data set corresponding to the original line, if yes, preferentially considering that the train runs on the original line, otherwise, calculating according to the step a.
And S530, determining a kilometer post corresponding to the longitude and latitude information according to the distance between the longitude and latitude corresponding to the target train line and the longitude and latitude information so as to complete fitting.
Optionally, calculating a linear distance between the longitude and latitude to be fitted and the longitude and latitude corresponding to the target train line, finding out a minimum distance d3, a longitude and latitude corresponding to the minimum distance d3, a next minimum distance d4 and a longitude and latitude corresponding to the minimum distance d4, judging whether A, B is adjacent longitude and latitude, and if A, B is adjacent longitude and latitude, marking kilometers as follows:
Wherein Ba is the point A kilometer sign and Bb is the point B kilometer sign. A. And B is not adjacent longitude and latitude, taking the kilometer sign at the point A as the kilometer sign of the longitude and latitude to be fitted, namely the first kilometer sign information.
It can be appreciated that the invention provides a technical scheme for fitting longitude and latitude information into kilometer posts, and the accuracy of distance calculation can be improved by fitting the longitude and latitude information into kilometer posts.
On the basis of the above embodiment, as an optional embodiment, the vehicle-road cooperative alarm ground device 2 includes an antenna feeder unit 210, a receiving unit 220, a control unit 230, and a vehicle-road cooperative alarm platform interface unit 240;
the receiving unit 220 is configured to obtain the train approaching pre-warning information through the antenna feeder unit 210, decode the train approaching pre-warning information, and send the decoded train approaching pre-warning information to the control unit 230;
the control unit 230 is configured to extract the heartbeat information of the locomotive from the decoded train approaching warning information;
the train-road cooperative alarm platform interface unit 240 uploads the heartbeat information of the locomotive based on the railway intranet.
Optionally, the receiving unit 220 is a POCSAG code receiving unit 220, and the POCSAG code is a format of train data transmission. The receiving unit 220 receives the POCSAG information broadcast by the locomotive integrated wireless communication device 1, and transmits the received POCSAG information to the control unit 230, the control unit 230 extracts information such as the number of the train, the number of the locomotive, the running speed, the kilometer post, the longitude and latitude, and the like, controls the interface unit 240 of the train cooperative alarm platform 3, and transmits the information to the train cooperative alarm platform 3 through a transmission network, so that the position of the train running on the railway is obtained. The transmission network may be a wireless transmission network or utilize an existing security monitoring platform network.
Fig. 6 is a schematic diagram of a working flow of the vehicle-road cooperative alarm ground device provided by the present invention, as shown in fig. 6, optionally, the working flow of the vehicle-road cooperative alarm ground device 2 includes determining whether the vehicle-road cooperative alarm ground device 2 is registered on the vehicle-road cooperative alarm platform 3, if yes, determining whether the train approach warning information is received, and if yes, uploading the train position information and the train state information through the interface unit 240 of the vehicle-road cooperative alarm platform 3.
It can be understood that the road cooperative alarm ground equipment 2 extracts information such as train position information and train state information from the received train approaching early warning information and sends the information to the road cooperative alarm platform 3. The invention uses the existing equipment to transfer the train position information, does not need to set a new device, and reduces the cost.
On the basis of the above embodiment, as an alternative embodiment, the vehicle road cooperative alarm ground apparatus 2 further includes a power supply unit 250, where the power supply unit 250 is configured to supply power to the receiving unit 220, the control unit 230, and the vehicle road cooperative alarm platform interface unit 240.
Specifically, the power supply unit 250 may employ a power supply system of the security monitoring platform device or a solar power supply system according to the condition of the installation site.
It can be appreciated that the present invention can be used in an emergency in an unexpected situation by providing the power supply unit 250 to the road cooperative alarm ground device 2, thereby improving safety.
Fig. 7 is a schematic block diagram of the road cooperative alarm ground device provided by the invention, as shown in fig. 7, optionally, the road cooperative alarm ground device further includes an alarm unit 260, which can receive train approaching early warning information sent by a train and send the information to a road cooperative alarm platform through a railway intranet, so as to determine the position of the train by the road cooperative alarm platform; on the other hand, the alarm information sent by the vehicle-road cooperative alarm platform is pushed to the CIR of the approaching locomotive through the alarm unit.
The vehicle-road cooperative alarm ground equipment has the functions that the early warning receiving unit receives CIR (common information request) to send proximity early warning information, acquires contents such as vehicle number, locomotive number, kilometer post, longitude and latitude and the like, and sends the contents to the vehicle-road cooperative alarm platform through an intranet; the method comprises the steps that the network unit is used for receiving alarm information of a train-road cooperative alarm platform from a railway intranet, and triggering a radio station alarm broadcast to be sent to a vehicle-mounted CIR; the vehicle-road cooperative alarm ground equipment is provided with a function of sending registration information and state information to the vehicle-road cooperative alarm platform.
Optionally, the performance of the ground equipment with the cooperative alarm at least comprises IP65 with the IP protection level, the antenna feeder unit with the transmitting power of 5W and the standing wave ratio of the antenna of less than 1.5.
The invention relates to a newly added road cooperative alarm ground device, which mainly comprises a host, an antenna feeder unit and a lightning protection system, wherein the host comprises a receiving unit 220, a control unit 230, a road cooperative alarm platform interface unit 240, a power supply unit 250 and an alarm unit 260, and the host and the antenna feeder unit are both arranged in a protection hole and are not exposed when being arranged in a tunnel. The ground equipment mainly receives locomotive approaching information and alarm information sent by vehicle-mounted broadcasting, and the principle is that the preset kilometers are covered along the line, meanwhile, field intensity tests are required to be conducted in combination with the actual geographical environment of the site, optimized deployment is conducted according to the field intensity coverage condition of the site, and the ground equipment is added to the weak field section. For example, the optical fiber is used along the line to uniformly access the intranet rear vehicle road cooperative alarm platform, the test line is 42 km long, 15 sets of vehicle road cooperative alarm ground equipment are used, and the existing transmission and power supply resources are utilized for transmission and power supply, so that the cost is reduced, and the operability is improved.
On the basis of the above-described embodiment, as an alternative embodiment, the type of the power supply unit 250 and the installation height of the antenna feeder unit 210 are both determined based on the installation site of the road-cooperative alarm floor apparatus 2.
Alternatively, the antenna feed unit 210 is installed at a height of 3-15 meters depending on the terrain environment of the installation site.
It will be appreciated that the present invention has a high flexibility in determining the type of the power supply unit 250 and the installation height of the antenna feeder unit 210 according to the installation location of the vehicle-road cooperative alarm ground device 2.
On the basis of the above-described embodiment, as an alternative embodiment, the installation site and the installation interval of the road cooperation warning ground apparatus 2 are determined based on the installation environment.
Alternatively, the vehicle road system alarm ground equipment is arranged at an interval of 5-10 km in a plain environment, 3-5 km in a mountain environment, and the installation interval in a tunnel is 2-3 km.
It can be understood that the invention has higher flexibility in determining the installation place and the installation interval according to the installation environment of the vehicle-road cooperative alarm ground equipment 2.
On the basis of the foregoing embodiment, as an optional embodiment, the broadcasting the train approach warning information includes:
broadcasting the train approaching early warning information according to a preset running distance interval or a preset running time interval.
Specifically, the LBJ device transmits information containing the contents of train number, locomotive number, kilometer sign, longitude and latitude and the like once in a wireless mode every 200 m of train operation.
It can be understood that the invention reduces the energy consumption by presetting the running distance interval or the running time interval without transmitting broadcast information in real time.
The train position determining method for the cooperative road warning provided by the invention is described below, and the train position determining method for the cooperative road warning described below and the train position determining system for the cooperative road warning described above can be correspondingly referred to each other.
Fig. 8 is a schematic flow chart of a train position determining method for cooperative road warning provided by the invention, and as shown in fig. 8, the invention also provides a train position determining method for cooperative road warning, which comprises the following steps:
s810, determining train approaching early warning information based on locomotive comprehensive wireless communication equipment on an operating train and broadcasting the train approaching early warning information;
s820, receiving the train approaching early warning information based on train cooperative warning ground equipment along a train line, extracting locomotive heartbeat information from the train approaching early warning information, and transmitting the locomotive heartbeat information to the train cooperative warning platform through a transmission network, wherein the locomotive heartbeat information comprises locomotive attribute information and locomotive position information;
And S830, the train-road cooperative alarm platform determines the train position according to the train number checking information and the locomotive heartbeat information.
As one embodiment, the locomotive integrated wireless communication device includes a first service processing unit and a second service processing unit;
the first service processing unit is used for determining the train approaching early warning information according to the train position information, the train state information and the train positioning information and broadcasting the train approaching early warning information;
the second service processing unit is used for acquiring the alarm information transmitted by the vehicle-road cooperative alarm platform, and displaying and broadcasting the alarm information;
the locomotive attribute information at least comprises a locomotive number, a train number and a speed, and the locomotive position information at least comprises a line section name, a kilometer post and longitude and latitude; the alarm information at least comprises dangerous situation alarm time, dangerous situation category, dangerous situation occurrence place and dangerous situation occurrence place kilometer sign.
As one embodiment, the determining the train position according to the train number checking information and the locomotive heartbeat information includes:
extracting first locomotive position information of a target train from the train number checking information;
Extracting second locomotive position information of the target train from at least one locomotive heartbeat information;
determining the running direction of the locomotive according to the locomotive attribute information;
obtaining the estimated position of the target train according to the running direction of the locomotive;
and screening the first locomotive position information and the second locomotive position information according to the estimated position to determine the position of the target train.
As one embodiment, the train-path cooperative alarm platform is further configured to determine a distance between the running train and a target location according to the train position;
wherein the determining the distance between the running train and the target location according to the train position comprises:
if the train position corresponding to the running train only contains longitude and latitude information, fitting the longitude and latitude information into first kilometer scale information;
and determining the distance between the running train and the target place based on the first kilometer scale information and the second kilometer scale information corresponding to the predetermined target place.
As one embodiment, the fitting the longitude and latitude information to the first kilometer post information includes:
Acquiring longitude and latitude corresponding to the kilometer post of each train line based on a preset distance interval to obtain a line database, wherein the line database is used for representing the corresponding relation between the kilometer post and the longitude and latitude;
determining a target train route corresponding to the longitude and latitude information according to the route database;
and determining a kilometer post corresponding to the longitude and latitude information according to the distance between the longitude and latitude corresponding to the target train line and the longitude and latitude information so as to complete fitting.
As an embodiment, the vehicle-road cooperative alarm ground equipment comprises an antenna feeder unit, a receiving unit, a control unit, a vehicle-road cooperative alarm platform interface unit and a power supply unit;
the receiving unit is used for acquiring the train approaching early warning information through the antenna feeder unit, decoding the train approaching early warning information and then sending the decoded train approaching early warning information to the control unit;
the control unit is used for extracting the locomotive heartbeat information from the decoded train approaching early warning information;
the vehicle-road cooperative alarm platform interface unit is used for uploading the heartbeat information of the locomotive based on the railway intranet after registration;
The power supply unit is used for supplying power to the receiving unit, the control unit and the vehicle-road cooperative alarm platform interface unit.
As one embodiment, the type of the power supply unit and the installation height of the antenna feeder unit are both determined based on the installation site of the vehicle-road cooperative alarm ground equipment.
As one embodiment, the installation location and the installation interval of the road cooperative alarm ground equipment are determined based on the installation environment.
As one embodiment, the broadcasting the train approach warning information includes:
broadcasting the train approaching early warning information according to a preset running distance interval or a preset running time interval.
According to the train position determining system and method for the cooperative train-road alarm, the train number checking information and the locomotive heartbeat information are respectively uploaded to the cooperative train-road alarm platform through the comprehensive locomotive wireless communication equipment and the cooperative train-road alarm ground equipment, so that the train position is determined, a new positioning device is not required to be constructed on a train, the cost is reduced, and the operability is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The train position determining system for the cooperative train road alarm is characterized by comprising a locomotive comprehensive wireless communication device, at least one ground equipment for cooperative train road alarm and a cooperative train road alarm platform;
the locomotive comprehensive wireless communication equipment is arranged on the running train and is used for broadcasting train approaching early warning information and sending train number checking information to the train cooperative warning platform;
the train route cooperative alarm ground equipment is arranged along a train route and is used for receiving the train approaching early warning information, extracting locomotive heartbeat information from the train approaching early warning information and transmitting the locomotive heartbeat information to the train route cooperative alarm platform through a transmission network, wherein the locomotive heartbeat information comprises locomotive attribute information and locomotive position information;
the train-road cooperative alarm platform is used for determining the train position according to the train number checking information and the locomotive heartbeat information.
2. The train position determination system for a collaborative alert for a train consist of claim 1, wherein the locomotive integrated wireless communication device includes a first service processing unit and a second service processing unit;
The first service processing unit is used for determining the train approaching early warning information according to the train position information, the train state information and the train positioning information and broadcasting the train approaching early warning information;
the second service processing unit is used for acquiring the alarm information transmitted by the vehicle-road cooperative alarm platform, and displaying and broadcasting the alarm information.
3. The train position determination system for a collaborative warning according to claim 2, wherein the locomotive attribute information includes at least a locomotive number, a train number, a speed, the locomotive position information includes at least a line section name, a kilometer post, a latitude and longitude; the alarm information at least comprises dangerous situation alarm time, dangerous situation category, dangerous situation occurrence place and dangerous situation occurrence place kilometer sign.
4. The train position determining system for a cooperative warning of a train route according to claim 1, wherein said determining a train position based on said train number check information and said locomotive heartbeat information comprises:
extracting first locomotive position information of a target train from the train number checking information;
extracting second locomotive position information of the target train from at least one locomotive heartbeat information;
Determining the running direction of the locomotive according to the locomotive attribute information;
obtaining the estimated position of the target train according to the running direction of the locomotive;
and screening the first locomotive position information and the second locomotive position information according to the estimated position to determine the position of the target train.
5. The train position determination system for a collaborative alert for a train according to claim 1, wherein the train collaborative alert platform is further configured to determine a distance between the running train and a destination location based on the train position;
wherein the determining the distance between the running train and the target location according to the train position comprises:
if the train position corresponding to the running train only contains longitude and latitude information, fitting the longitude and latitude information into first kilometer scale information;
and determining the distance between the running train and the target place based on the first kilometer scale information and the second kilometer scale information corresponding to the predetermined target place.
6. The train position determination system for a collaborative alarm according to claim 5, wherein the fitting the latitude and longitude information to first kilometer post information includes:
Acquiring longitude and latitude corresponding to the kilometer post of each train line based on a preset distance interval to obtain a line database, wherein the line database is used for representing the corresponding relation between the kilometer post and the longitude and latitude;
determining a target train route corresponding to the longitude and latitude information according to the route database;
and determining a kilometer post corresponding to the longitude and latitude information according to the distance between the longitude and latitude corresponding to the target train line and the longitude and latitude information so as to complete fitting.
7. The train position determination system for a cooperative vehicle-road warning according to claim 1, wherein the cooperative vehicle-road warning ground device includes an antenna feeder unit, a receiving unit, a control unit, a cooperative vehicle-road warning platform interface unit, and a power supply unit;
the receiving unit is used for acquiring the train approaching early warning information through the antenna feeder unit, decoding the train approaching early warning information and then sending the decoded train approaching early warning information to the control unit;
the control unit is used for extracting the locomotive heartbeat information from the decoded train approaching early warning information;
the vehicle-road cooperative alarm platform interface unit is used for uploading the heartbeat information of the locomotive through a railway intranet after registration;
The power supply unit is used for supplying power to the receiving unit, the control unit and the vehicle-road cooperative alarm platform interface unit.
8. The train position determination system for a road-cooperative alarm according to claim 7, wherein the type of the power supply unit and the installation height of the antenna feeder unit are both determined based on an installation site of the road-cooperative alarm ground equipment, and the installation site and the installation interval of the road-cooperative alarm ground equipment are determined based on an installation environment.
9. The train location determination system for a collaborative alert for a train consist according to claim 2, wherein broadcasting the train proximity warning information includes:
broadcasting the train approaching early warning information according to a preset running distance interval or a preset running time interval.
10. A train position determining method for a cooperative warning of a train route, comprising:
determining train approaching early warning information based on locomotive comprehensive wireless communication equipment on an operating train, broadcasting the train approaching early warning information, and sending train number checking information to the train cooperative warning platform;
receiving the train approaching early warning information based on train path cooperative warning ground equipment along a train path, extracting locomotive heartbeat information from the train approaching early warning information, and transmitting the locomotive heartbeat information to the train path cooperative warning platform through a transmission network, wherein the locomotive heartbeat information comprises locomotive attribute information and locomotive position information;
And the train-road cooperative alarm platform determines the train position according to the train number checking information and the locomotive heartbeat information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310228466.6A CN116331309A (en) | 2023-03-10 | 2023-03-10 | Train position determining system and method for cooperative train-road alarm |
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| CN202310228466.6A CN116331309A (en) | 2023-03-10 | 2023-03-10 | Train position determining system and method for cooperative train-road alarm |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116873002A (en) * | 2023-09-05 | 2023-10-13 | 北京三岭基业科技发展有限公司 | Method and device for acquiring current accurate position of train |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116873002A (en) * | 2023-09-05 | 2023-10-13 | 北京三岭基业科技发展有限公司 | Method and device for acquiring current accurate position of train |
| CN116873002B (en) * | 2023-09-05 | 2023-11-17 | 北京三岭基业科技发展有限公司 | Method and device for acquiring current accurate position of train |
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