CN104943710B - A kind of train locating method and system - Google Patents
A kind of train locating method and system Download PDFInfo
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- CN104943710B CN104943710B CN201410114412.8A CN201410114412A CN104943710B CN 104943710 B CN104943710 B CN 104943710B CN 201410114412 A CN201410114412 A CN 201410114412A CN 104943710 B CN104943710 B CN 104943710B
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Abstract
The invention discloses train locating method and system, this method includes：Collect the DB loss values of train to be positioned；According to the DB loss values being collected into, the DB loss values for positioning analysis are determined according to preset model；The variance that empirical value is lost with not co-orbital DB for the DB loss values of positioning analysis is calculated respectively, therefrom extracts the variance of minimum；Find out the DB loss empirical values corresponding to the variance of minimum, the orbital number that the orbital number corresponding to empirical value is lost in the DB is parked as train to be positioned.The present invention need not increase extra hardware input, can quickly and accurately carry out train positioning, be conducive to improving maintenance and the operating efficiency of administrative staff.
Description
Technical field
The present invention relates to Automatic Measurement Technique field, specifically, it is related to a kind of train locating method and system.
Background technology
The maintenance and maintenance of train usually require to carry out in train service shop, and maintenance and administrative staff are in maintaining
, it is necessary to determine the track that the train is parked first during train, so as to quickly carry out maintenance work.
The method that positioning train parks track at present is by way of manually being patrolled in maintenance storehouse, to be obtained with this
Obtain the information that train parks track.Time-consuming for this method, and efficiency is low.
Based on above-mentioned situation, a kind of method that can quickly carry out train positioning is needed badly.
The content of the invention
To solve the above problems, the invention provides a kind of train locating method, the described method comprises the following steps：
Collect the DB loss values of train to be positioned；
According to the DB loss values being collected into, the DB loss values for positioning analysis are determined according to preset model；
The variance that empirical value is lost with not co-orbital DB for the DB loss values of positioning analysis is calculated respectively, is therefrom extracted
Minimum variance；
The DB loss empirical values corresponding to the variance of minimum are found out, the DB is lost to the orbital number corresponding to empirical value and made
The orbital number parked for train to be positioned.
According to one embodiment of present invention, determine to use again after the quantity for the DB loss values being collected into reaches predetermined threshold value
In the DB loss values of positioning analysis.
According to one embodiment of present invention, the DB loss value steps determined according to preset model for positioning analysis
Further comprise：
Calculate the quantity for each DB loss value being collected into；
The most DB loss values of quantification, are used as the DB loss values for positioning analysis.
According to one embodiment of present invention, the DB loss value steps determined according to preset model for positioning analysis
Further comprise：
The average value for the DB loss values being collected into is calculated, the DB loss values for positioning analysis are used as.
According to one embodiment of present invention, if the minimum variance extracted is not unique, according to the default threshold being collected into
The DB loss values being collected into during the DB loss values and calculating minimum variance of value quantity, recalculate each DB loss value
Quantity, to determine the DB loss values for positioning analysis.
According to one embodiment of present invention, methods described also includes：
Train is gradually parked on each track, the DB loss empirical value corresponding with each orbital number is obtained；
According to each orbital number and corresponding DB loss empirical values, DB loss empirical values are built corresponding with orbital number
Relation list.
According to one embodiment of present invention, the span of the predetermined threshold value includes [60,100].
According to one embodiment of present invention, methods described is further comprising the steps of：
The train number of train to be positioned is collected, the train number is relative with the DB loss values of the train to be positioned
Should；And,
The orbital number that train to be positioned is parked is corresponding with train number progress, to determine each train number
The orbital number that train is stopped, realizes the positioning to train.
Present invention also offers a kind of train positioning system that train positioning is carried out using method as described above, its feature exists
In the system includes：
Electromagnetic wave transceiver module, its electromagnetic wave for being used to send certain power and is produced corresponding according to the electromagnetic wave that receives
Data-signal；
Electromagnetic wave attenuation analysis module, it is used for the DB loss values that electromagnetic wave is calculated according to the electromagnetic wave received, and will
The DB loss values are exported in the form of an electromagnetic wave；
Electromagnetic transmission module, its be connected to the electromagnetic wave transceiver module and the electromagnetic wave attenuation analysis module it
Between, the transmission for realizing electromagnetic wave between the electromagnetic wave transceiver module and the electromagnetic wave attenuation analysis module；
Position detecting module, it is connected with the electromagnetic wave transceiver module, for determining train according to the DB loss values
The orbital number of stop.
According to one embodiment of present invention, electromagnetic wave attenuation analysis module every preset duration according to the electromagnetism received
Ripple calculates the DB loss values of electromagnetic wave, and exports the DB loss values every the preset duration.
The train locating method that the present invention is provided is by the way that the DB received loss values are compared with experience DB loss values
To determine the parking orbit of train, the hardware input extra without increasing can quickly and accurately carry out train positioning, favorably
In the operating efficiency for improving maintenance and administrative staff.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and accompanying drawing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing required in technology description to do simple introduction：
Fig. 1 is the structure chart of train positioning system according to an embodiment of the invention；
Fig. 2 is the flow chart of train locating method according to an embodiment of the invention；
Fig. 3 is the flow chart of the train locating method according to an embodiment of the invention for many trains.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the present invention is applied whereby
Technological means solves technical problem, and reaches the implementation process of technique effect and can fully understand and implement according to this.Need explanation
As long as not constituting each embodiment in conflict, the present invention and each feature in each embodiment can be combined with each other,
The technical scheme formed is within protection scope of the present invention.
Embodiment one：
Fig. 1 shows the structure chart of train positioning system in the present embodiment, and Fig. 2 shows train positioning side in the present embodiment
The flow chart of method, below with reference to train positioning system come the purpose of train locating method provided the present invention, principle and
Advantage is further illustrated.
As shown in figure 1, in the present embodiment, train positioning system includes electromagnetic wave attenuation analysis module 101, electromagnetic transmission
Module 102, electromagnetic wave transceiver module 103 and position detecting module 104.
When carrying out train positioning, electromagnetic wave transceiver module 103 sends the electricity of certain power to electromagnetic transmission module 102
Magnetic wave.Electromagnetic transmission module 102 is by the electromagnetic transmission of the certain power to electromagnetic wave attenuation analysis module 101.Electromagnetic wave
There can be decay during transmission, electromagnetic wave attenuation analysis module 101 is every preset duration T according to the electromagnetic wave received
Power and storage electromagnetic wave power (i.e. the power for the electromagnetic wave that electromagnetic wave transceiver module 103 is sent) calculating obtain electromagnetism
The DB loss values of ripple.Wherein, electromagnetic wave attenuation analysis module 101 is installed ON TRAINS, and it can be with electromagnetic wave transceiver module 103
Between carry out electromagnetic wave transmission.
In the present embodiment, electromagnetic transmission module 102 includes some waveguides, and waveguide is corresponding with track respectively to be installed.
Each waveguide is equipped with label in waveguide managed network, and the label is corresponding with orbital number.Waveguide passes through ripple in series
Conduit network.
Because the distance between each waveguide and electromagnetic wave transceiver module 103 are different, this has resulted in electromagnetic wave
The loss that the electromagnetic wave for the certain power that transceiver module 103 is sent is produced when being transferred to different tracks is also just different.Distance electricity
The more remote track of magnetic wave transceiver module 103, its electromagnetic wave loss is also bigger.So the loss value of electromagnetic wave is numbered with waveguide
Between have corresponding relation, the loss value by electromagnetic wave is the numbering that can determine that the waveguide that electromagnetic wave is transferred to, and then
Determine the orbital number corresponding to the waveguide.
In the present embodiment, electromagnetic wave attenuation analysis module 101 damages the DB for calculating obtained electromagnetic wave every preset duration T
Consumption value is sent to electromagnetic transmission module 102 in the form of an electromagnetic wave, and electromagnetic transmission module 102 will include DB loss values letter
The electromagnetic transmission of breath is to electromagnetic wave transceiver module 103.Value information is lost from the DB that contains received in electromagnetic wave transceiver module 103
Electromagnetic wave extract and obtain DB loss values, and the DB loss values are sent to position detecting module 104.Position detecting module 104
DB loss values according to receiving determine the orbital number that train to be positioned is stopped, so as to realize the positioning to train to be positioned.
In the present embodiment, the corresponding relation set up between DB loss values and orbital number is needed before train positioning is carried out
Table.
Successively train is parked in all tracks first, train can be connect by electromagnetic wave attenuation analysis module 101
Receive electromagnetic transmission module 102 and transmit the electromagnetic wave of coming, and calculate the DB loss values obtained corresponding to different waveguide pipe.Because each
Individual waveguide is deployed in by respective rail, so can determine corresponding orbital number according to the DB loss values of waveguide.
According to orbital number and corresponding DB loss values, a tables of data TabDBGNumber, i.e. DB loss values are set up
With orbital number GNumber corresponding relation list.In the present embodiment, using the DB loss values in corresponding relation list as corresponding
The DB loss empirical values δ of tracki, DB loss empirical values δiObtained according to test of many times.
After the completion of DB loss values and orbital number GNumber corresponding relation list are set up, the positioning of train, figure are carried out
2 show the flow chart of train locating method in the present embodiment.
As shown in Fig. 2 collecting the DB loss values of train to be positioned in step s 201 first.In the present embodiment, carrying out
When train is positioned, it is undetermined that the electromagnetic wave attenuation analysis module configured on train to be positioned can send this according to prefixed time interval T
Rank the DB loss values that car parks track.Wherein, time interval T is passed according to onboard wireless in electromagnetic wave attenuation analysis module
What the time interval of defeated unit detection DB loss values was determined, i.e., train sends the time interval and train detection electromagnetism of DB loss values
The time interval for the electromagnetic wave that the transmission of ripple transport module comes is consistent.
Position detecting device 104 is during DB loss values are collected, and meeting real-time judge in step S202 is collected into
Whether the quantity of DB loss values reaches predetermined threshold value k.If reaching predetermined threshold value k, step S203 is performed；If be not reaching to
Threshold value k, then continue executing with step S201.In the present embodiment, by test of many times, k span is set as [60,100],
But the invention is not restricted to this.
Then according to current collection to DB loss values according to preset model determine DB loss value δ for positioning analysis,
For being positioned to train to be positioned.
In the present embodiment, the most DB loss values of occurrence number in the DB loss values being collected into are regard as train to be positioned
DB loss values δ for positioning analysis.As shown in figure 1, the DB loss values for positioning analysis in order to determine train to be positioned
δ, calculates the quantity of each DB loss value in k DB loss value being collected into step S203 first, and in step S204
The most DB loss values of quantification, and using the DB loss values as train to be positioned the DB loss values δ for positioning analysis.
It should be noted that in other embodiments in accordance with the invention, the DB for positioning analysis of train to be positioned
Loss value can also be determined by other rational methods, for example using current collection to each DB loss value average value as treating
The DB loss values for positioning analysis of train are positioned, the invention is not restricted to this.
In step S205, the DB loss locator value δ and tables of data TabDBGNumber for positioning analysis are calculated respectively
In each known track DB loss empirical values δiVariance, and extract in step S206 each variance for calculating and obtaining
In minimum variance Dmin。
In step S207, the minimum variance D that judgment step S206 is obtainedminWhether it is unique.If unique, hold
Row step S208.
If minimum variance DminIt is not unique, then it represents that to be used for the DB loss values for positioning train to be positioned in step S203
Quantity is inadequate.For such case, in the present embodiment, as minimum variance DminWhen not unique, step S203, root will be re-executed
The quantity of each DB loss value is recalculated according to collected DB loss values.
Because needing the consuming time during the steps such as calculating minimum variance are performed, step S201 will be performed to step
Duration spent by S207 is designated as t, and the quantity for the DB loss values that onboard wireless transport module is sent in duration t is designated as i, then
The quantity for the DB loss values being now collected into is k+i.Now according to the k+i DB loss value in step S203 and step S204
Redefine the DB loss values for positioning analysis of train to be positioned.
As obtained minimum variance DminWhen being unique, now in step S208, minimum variance D is found outminInstitute is right
The DB loss empirical values answered.
Finally, determine that warp is lost in the DB that step S208 is obtained according to using tables of data TabDBGNumber in step S209
The train rail numbering Gnumber corresponding to value is tested, train rail numbering is the orbital number that train to be positioned is parked,
So as to realize the positioning of train.
The train locating method that the present invention is provided is by the way that the DB received loss values are compared with experience DB loss values
Track is parked determine train, the hardware input extra without increasing can quickly and accurately carry out train positioning, favorably
In the operating efficiency for improving maintenance and administrative staff.
Embodiment two：
The train locating method that the present invention is provided can also be simultaneously to resting in many trains on different tracks while entering
Row positioning, Fig. 3 shows the flow chart for the train locating method that many trains are positioned in the present embodiment.
As shown in figure 3, the train number of train to be positioned is collected in step S301 first and corresponding with train number
DB loss values.For the DB loss values received, classified according to train number, for each train number, its is right
The DB loss values answered are the DB loss values that are sent of train of the train number.So for each train number,
Can be according to determining the orbital number that the train is stopped to the method that single train is positioned.
In the present embodiment, determined in step S302 to step S309 according to the corresponding DB loss values of each train number
Go out the orbital number corresponding to corresponding train number, its implementation process and principle and the step S202 in embodiment one to step
S209 is identical, will not be repeated here.
It is in step S310, each orbital number for determining to obtain in step S309 is corresponding with train number progress, enter
And the orbital number that the train of each train number is stopped is determined, so as to complete many positioning to train.
In the present embodiment, by will determine that obtained orbital number is corresponding with train number so that the present embodiment is provided
Train locating method on the basis of the localization method that embodiment one is provided, additionally it is possible to realize simultaneously to resting in different tracks
On many trains positioning so that the application of train locating method that the present invention is provided is more extensive.
Although disclosed herein embodiment as above, described content is only to facilitate understanding the present invention and adopting
Embodiment, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (9)
1. a kind of train locating method, it is characterised in that comprise the following steps：
Collect the DB loss values of train to be positioned；
According to the DB loss values being collected into, the DB loss values for positioning analysis are determined according to preset model；
The variance that empirical value is lost from the DB of different orbital numbers for the DB loss values of positioning analysis is calculated respectively, is therefrom extracted
Minimum variance；
The DB loss empirical values corresponding to the variance of minimum are found out, using the orbital number corresponding to empirical value is lost in the DB as treating
Position the orbital number of train park；
Wherein, if extract minimum variance it is not unique, the DB loss values based on the pre-set threshold numbers being collected into, with reference to
The DB loss values being collected into during calculating minimum variance, recalculate the quantity of each DB loss value, fixed to determine to be used for
The DB loss values of position analysis.
2. the method as described in claim 1, it is characterised in that after the quantity for the DB loss values being collected into reaches predetermined threshold value
The DB loss values for positioning analysis are determined again.
3. the method as described in claim 1, it is characterised in that the DB damages determined according to preset model for positioning analysis
Consumption value step further comprises：
Calculate the quantity for each DB loss value being collected into；
The most DB loss values of quantification, are used as the DB loss values for positioning analysis.
4. the method as described in claim 1, it is characterised in that the DB damages determined according to preset model for positioning analysis
Consumption value step further comprises：
The average value for the DB loss values being collected into is calculated, the DB loss values for positioning analysis are used as.
5. such as method according to any one of claims 1 to 4, it is characterised in that methods described also includes：
Train is gradually parked on each track, the DB loss empirical value corresponding with each orbital number is obtained；
According to each orbital number and corresponding DB loss empirical values, the corresponding relation of DB loss empirical values and orbital number is built
List.
6. method as claimed in claim 2, it is characterised in that the span of the predetermined threshold value includes [60,100].
7. such as method according to any one of claims 1 to 4, it is characterised in that methods described is further comprising the steps of：
The train number of train to be positioned is collected, the train number is corresponding with the DB loss values of the train to be positioned；With
And,
The orbital number that train to be positioned is parked is corresponding with train number progress, to determine the train of each train number
The orbital number stopped, realizes the positioning to train.
8. a kind of train positioning system that train positioning is carried out using the method as any one of claim 1~7, its feature
It is, the system includes：
Electromagnetic wave transceiver module, its electromagnetic wave for being used to send certain power and produces corresponding number according to the electromagnetic wave that receives
It is believed that number；
Electromagnetic wave attenuation analysis module, it is used for the DB loss values that electromagnetic wave is calculated according to the electromagnetic wave received, and will be described
DB loss values are exported in the form of an electromagnetic wave；
Electromagnetic transmission module, it is connected between the electromagnetic wave transceiver module and the electromagnetic wave attenuation analysis module, is used
In the transmission for realizing electromagnetic wave between the electromagnetic wave transceiver module and the electromagnetic wave attenuation analysis module；
Position detecting module, it is connected with the electromagnetic wave transceiver module, for determining that train is stopped according to the DB loss values
Orbital number.
9. system as claimed in claim 8, it is characterised in that electromagnetic wave attenuation analysis module is every preset duration according to reception
The electromagnetic wave arrived calculates the DB loss values of electromagnetic wave, and exports the DB loss values every the preset duration.
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| CN201410114412.8A CN104943710B (en) | 2014-03-25 | 2014-03-25 | A kind of train locating method and system |
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| CN201410114412.8A CN104943710B (en) | 2014-03-25 | 2014-03-25 | A kind of train locating method and system |
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| CN104943710B true CN104943710B (en) | 2017-10-24 |
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| JP3580713B2 (en) * | 1998-11-24 | 2004-10-27 | 東日本旅客鉄道株式会社 | Train number reception method |
| CN102170697B (en) * | 2011-04-06 | 2014-09-17 | 北京邮电大学 | Indoor positioning method and device |
| CN103002574B (en) * | 2012-09-28 | 2017-02-22 | 华北电力大学 | System and method for positioning inspection robot in cable tunnel on basis of wireless network |
| CN103237344B (en) * | 2013-04-08 | 2015-06-10 | 北京航空航天大学 | Indoor antenna sensor network positioning method based on received signal strength indication |
| CN103209478B (en) * | 2013-04-27 | 2016-01-06 | 福建师范大学 | Based on the indoor orientation method of classification thresholds and signal strength signal intensity weight |
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Inventor after: Chen Chaolu Inventor after: Xiao Zhijun Inventor after: Chen Jianxiao Inventor after: Li Wei Inventor after: Rao Tiangui Inventor after: Ji Anhui Inventor after: Wang Chao Inventor after: Yu Jieren Inventor after: Mou Rong Inventor before: Chen Jianxiao Inventor before: Li Wei Inventor before: Rao Tiangui Inventor before: Ji Anhui Inventor before: Zhang Yufu Inventor before: Wang Chao Inventor before: Yu Jieren Inventor before: Mou Rong Inventor before: Xiao Zhijun |
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