CN106585668B - The railway code keeping method and device of a kind of track circuit confusion region - Google Patents
The railway code keeping method and device of a kind of track circuit confusion region Download PDFInfo
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- CN106585668B CN106585668B CN201611127900.8A CN201611127900A CN106585668B CN 106585668 B CN106585668 B CN 106585668B CN 201611127900 A CN201611127900 A CN 201611127900A CN 106585668 B CN106585668 B CN 106585668B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0072—On-board train data handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/18—Railway track circuits
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- Automation & Control Theory (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Railway code keeping method and device, method the embodiment of the invention discloses a kind of track circuit confusion region include：Vehicle-mounted Main Processor Unit MPU is inscribed track circuit confusion region received first object information and judges；If first object information is different from target carrier frequency for no code information or the corresponding decoding carrier frequency of first object information, the railway code in last cycle is kept；According to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods, MPU cycles and TCR code retention times, keeping at a distance for railway code is determined.Device includes：Signal judgement module, railway code keep module and determining module of keeping at a distance.When the embodiment of the present invention judges first object information for no code information or the corresponding decoding carrier frequency of the first object information different from target carrier frequency by vehicle-mounted Main Processor Unit, keep the railway code in last cycle and determine to keep at a distance, it can be suitable for improved vehicle-mounted signal device, effectively solve the problems, such as to influence signal system normal work.
Description
Technical field
The present embodiments relate to technical field of rail traffic, and in particular to a kind of railway code of track circuit confusion region is protected
Hold method and device.
Background technology
Foundation of Beijing Metro Line 5 is one of backbone of running due north and due south, opens operation in October, 2007, and signal system uses
Quasi-moving block system based on multi information non-insulated track circuit (FS2500) plus transponder positioning.Nearly ten years, with north
Capital is northern to be developed rapidly, and the volume of the flow of passengers of No. 5 lines increases rapidly, and the average daily volume of the flow of passengers of 2015 has reached 850,000 person-times, highest
Reach 108.5 ten thousand person-times, significantly larger than design 400,000 person-times of the average daily volume of the flow of passengers estimated initial stage.With the lasting increasing of the volume of the flow of passengers
Add, operator is forced to take increasing purchase vehicle, shortens the measures such as operation interval to improve transport power.With operation interval shortening and
The aging of signal system equipment, the failure rate of No. 5 lines will further improve.Nearly 2 years, because signal system failure repeatedly causes No. 5
Line Train delay, operation interval widen, transport power declines, passenger is detained, and are subject to the extensive concern of society.
In order to break away from the track circuit of No. 5 lines in the future, it will compress the departure interval, for example, being compressed to from 150 seconds 100 seconds.Need
No. 5 alignment cars are upgraded in the case where No. 5 lines are not stopped transport, it is possessed the ability for running CBTC systems in the future.For
Do not influence normal operation, the transformation phase in of No. 5 line signal systems, a phase upgrades mobile unit, it is compatible both
There are ground rail circuit arrangement and American Standard transponder.
Due to the reason of No. 5 line upgrading time phasings, a phase only transforms vehicle-mounted signal device, and ground installation includes rail
The equipment such as road circuit, transponder, semaphore remain unchanged, it means that, ground installation, especially frequently results in signal system event
The equipment state of the track circuit of barrier will remain unchanged as, its fault mode and malfunction will continue to influence the normal of signal system
Work；And No. 5 lines use jointless track circuit (FS2500), formed when dividing track section between two neighboring section
Confusion region.The processing of railway code is the basis of improved vehicle-mounted signal device communication, and the prior art lacks to track circuit
The processing method of railway code in confusion region.
The content of the invention
Due to the above-mentioned problems in the prior art, the embodiment of the present invention proposes a kind of track of track circuit confusion region
Code keeping method and device.
In a first aspect, the embodiment of the present invention proposes a kind of railway code keeping method of track circuit confusion region, including：
Vehicle-mounted Main Processor Unit MPU is inscribed track circuit confusion region received first object information and judges；
If the first object information carries for no code information or the corresponding decoding carrier frequency of the first object information with target
Frequency is different, then keeps the railway code in last cycle；
According to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods, the MPU cycles and
The TCR code retention times, determine keeping at a distance for the railway code.
Alternatively, it is described current according to tuning area's ultimate range, train if the first object information is no code information
Speed, railway code receiver TCR decoding periods, MPU cycles and TCR code retention times, determine the holding of the railway code away from
From specifically including：
The S=S that keeps at a distance of the railway code0+Vtrain×T1-Vtrain×T2；
Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1Solved for railway code receiver TCR
Code the sum of cycle and MPU cycles, T2For the TCR code retention times.
Alternatively, the method further includes：
If being effective code information in inscribed received second target information of keeping at a distance, believed using the effective code
Cease corresponding effective code.
Alternatively, it is described according to tuning if the corresponding decoding carrier frequency of the first object information is different from target carrier frequency
Area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods, MPU cycles and TCR code retention times, determine
Keeping at a distance for the railway code, specifically includes：
The S=S that keeps at a distance of the railway code0+Vtrain×T1+Vtrain×T2；
Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1Solved for railway code receiver TCR
Code the sum of cycle and MPU cycles, T2For the TCR code retention times.
Alternatively, the method further includes：
If in the corresponding decoding carrier frequency of inscribed received 3rd target information of keeping at a distance and the target carrier frequency phase
Together, then using the corresponding effective code of the 3rd target information.
Alternatively, the method further includes：
If being no code information in inscribed received 4th target information of keeping at a distance, holding described in train driving is treated
After distance, emergency brake signal is exported.
Second aspect, the embodiment of the present invention also propose a kind of railway code holding meanss of track circuit confusion region, including：
Signal judgement module, judges for track circuit confusion region being inscribed received first object information；
Railway code keeps module, if being corresponded to for the first object information for no code information or the first object information
Decoding carrier frequency it is different from target carrier frequency, then keep the railway code in last cycle；
Keep at a distance determining module, for according to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR
Decoding periods, MPU cycles and TCR code retention times, determine keeping at a distance for the railway code.
Alternatively, if the railway code keep module described in first object information be no code information, it is described holding away from
Specifically included from determining module：
The S=S that keeps at a distance of the railway code0+Vtrain×T1-Vtrain×T2；
Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1Solved for railway code receiver TCR
Code the sum of cycle and MPU cycles, T2For the TCR code retention times.
Alternatively, described device further includes：
First effective code uses module, if for being effective code in inscribed received second target information of keeping at a distance
Information, then using the corresponding effective code of the effective code information.
Alternatively, if the railway code keeps the corresponding decoding carrier frequency of first object information described in module and target carrier frequency
Difference, then the determining module of keeping at a distance specifically include：
The S=S that keeps at a distance of the railway code0+Vtrain×T1+Vtrain×T2；
Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1Solved for railway code receiver TCR
Code the sum of cycle and MPU cycles, T2For the TCR code retention times.
Alternatively, described device further includes：
Second effective code uses module, if in the corresponding solution of inscribed received 3rd target information of keeping at a distance
Code carrier frequency is identical with the target carrier frequency, then using the corresponding effective code of the 3rd target information.
Alternatively, described device further includes：
Emergency braking module, if for being no code information in inscribed received 4th target information of keeping at a distance,
After keeping at a distance described in train driving, emergency brake signal is exported.
As shown from the above technical solution, the embodiment of the present invention judges first object information for nothing by vehicle-mounted Main Processor Unit
When code information or the corresponding decoding carrier frequency of the first object information different from target carrier frequency, the railway code in last cycle is kept simultaneously
Determine to keep at a distance, improved vehicle-mounted signal device can be suitable for, effectively solve to influence asking for signal system normal work
Topic.
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 attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these figures.
Fig. 1 is the curve synoptic diagram of the ideal signal for the track circuit confusion region that the prior art provides；
Fig. 2 is the curve synoptic diagram of the more satisfactory signal for the track circuit confusion region that the prior art provides；
Fig. 3 is the curve synoptic diagram of the low-desired signal for the track circuit confusion region that the prior art provides；
Fig. 4 is a kind of flow signal of the railway code keeping method for track circuit confusion region that one embodiment of the invention provides
Figure；
Fig. 5 is that a kind of TCR for track circuit confusion region that one embodiment of the invention provides decodes structure diagram；
Fig. 6 is that a kind of ATP for track circuit confusion region that one embodiment of the invention provides receives the schematic diagram of railway code；
Fig. 7 is a kind of structural representation of the railway code holding meanss for track circuit confusion region that one embodiment of the invention provides
Figure.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is further described.Following embodiments are only used for more
Technical scheme is clearly demonstrated, and is not intended to limit the protection scope of the present invention and limits the scope of the invention.
Track circuit confusion region of the present invention is described first below：
Foundation of Beijing Metro Line 5 uses jointless track circuit (FS2500), in two neighboring area when dividing track section
Confusion region is formed between section.Analysis result according to mobile unit to live railway code barcode scanning signal, No. 5 line all fronts confusion region
Signal characteristic is more complicated, to sum up have following three kinds of features, and also they are all the presence of " reasonable ".
Processing of the mobile unit to track code signal is mainly completed by two parts, railway code receiver (TCR) and vehicle-mounted master
Processing unit (MPU).TCR mainly completes hardware filtering and the data acquisition of the track code signal received to ATP antennas, and passes through
Software carries out sampled data the computing such as resampling, FFT after digital filtering, adding window, track section where parsing ATP antennas
Carrier frequency and code frequency information, if TCR analysis results are invalid for no code or decoding condition, to ensure the stabilization of output, TCR can be
The last effective decoded result of output is to MPU in the time (T2) of setting, and MPU is according to these information combination current train positions
Mobile authorization, protection curve are calculated with electronic map, and train is protected.
Fig. 1 shows the curve synoptic diagram of the ideal signal of track circuit confusion region, this signal distributions is ideal situation, i.e.,
Before the carrier frequency amplitude reduction of previous section to railway code receiver (TCR) decoding threshold, the signal amplitude of next section is high
In might have some interference signals in TCR decoding thresholds, confusion region, but its signal amplitude and not up to TCR decoding thresholds.This
Signal gap is not present for TCR decodings, will persistently export effective decoded result.
Fig. 2 shows the curve synoptic diagram of the more satisfactory signal of track circuit confusion region, this signal distributions is to compare reason
Think situation, after carrier frequency amplitude reduction to the TCR decoding thresholds of previous section, after a distance, next section
Signal amplitude is higher than TCR decoding thresholds, also with some interference signals in confusion region, but its signal amplitude and not up to TCR
Decoding threshold.This for TCR decoding for may presence signal gap, if ATP antennas residence time in confusion region surpass
Going out decoding the output holding time T2, TCR of TCR will export without code.
Fig. 3 shows the curve synoptic diagram of the low-desired signal of track circuit confusion region, which is harsh conditions, when
After the carrier frequency amplitude reduction of 7G to TCR decoding thresholds, the amplitude of interference signal exceeds TCR decoding thresholds in confusion region, and holds
After continuous certain distance, the normal signal amplitude of next section 9G is just higher than interference signal amplitude.This for decoding, as long as
Time of the ATP antenna dwells in confusion region is enough, and TCR will solve interference signal, and export to MPU.
The ATP signals of above-mentioned three kinds of situations, situation corresponding for Fig. 2 and Fig. 3, TCR may export no code or mistake
Error code information is, it is necessary to which MPU carries out railway code holding processing according to current train speed and configuration information.
Fig. 4 shows a kind of flow signal of the railway code keeping method of track circuit confusion region provided in this embodiment
Figure, including：
S401, vehicle-mounted Main Processor Unit MPU are inscribed track circuit confusion region received first object information and judge.
Wherein, the railway code letter of received TCR transmissions is inscribed for MPU in track circuit confusion region for the first object information
Breath.
If S402, the first object information are no code information or the corresponding decoding carrier frequency of the first object information and mesh
Carrier frequency difference is marked, then keeps the railway code in last cycle.
Wherein, the no code information is the corresponding TCR of more satisfactory signal of the corresponding track circuit confusion regions of Fig. 2
Export result.
The target carrier frequency is the carrier frequency of track section where train head's ATP logical places.
S403, according to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods, the MPU cycles
And the TCR code retention times, determine keeping at a distance for the railway code.
Keeping at a distance for the railway code uses the distance of current orbit code continuous service for train.
The present embodiment judges that first object information is believed for no code information or the first object by vehicle-mounted Main Processor Unit
Cease it is corresponding decoding carrier frequency it is different from target carrier frequency when, keep the railway code in last cycle and determine to keep at a distance, can be applicable in
In improved vehicle-mounted signal device, effectively solve the problems, such as to influence signal system normal work.
Further, it is described if the first object information is no code information on the basis of above method embodiment
Kept according to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods, MPU cycles and TCR codes
Time, determines keeping at a distance for the railway code, specifically includes：
The S=S that keeps at a distance of the railway code0+Vtrain×T1-Vtrain×T2；
Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1Solved for railway code receiver TCR
Code the sum of cycle and MPU cycles, T2For the TCR code retention times.
Further, if being effective code information in inscribed received second target information of keeping at a distance, use
The corresponding effective code of the effective code information.
If being no code information in inscribed received 4th target information of keeping at a distance, holding described in train driving is treated
After distance, emergency brake signal is exported.
Wherein, second target information and the 4th target information are that MPU is received in described keep at a distance
TCR send railway code information.
By receiving effective code information in keeping at a distance, then using effective code, enable to the fast quick-recoveries of MPU effective
Code so that the operation of train is safer.
Specifically, MPU monitors the carrier frequency and code frequency information of TCR in real time, when MPU receive TCR output without code information when
(more satisfactory signal as shown in Figure 2), MPU starts the effective railway code for keeping a cycle to receive, the distance of holding
For S, as shown in Figure 5.
Work as S>When 0, its value is the distance that In-vehicle device controller (VOBC) needs to keep；
Work as S<When=0, when representing that train is run with current vehicle speed, the distance of train operation is more than MPU during TCR codes are kept
Code keep at a distance, MPU need not continue to keep.
In the distance S kept, if MPU receives the non-zero effective code of TCR, MPU recovers to use the effective code；
Keep at a distance in S, if MPU persistently receives completely keeping at a distance after S without code, meter for TCR, MPU will export urgent system
It is dynamic.
Further, on the basis of above method embodiment, if the first object information it is corresponding decoding carrier frequency with
Target carrier frequency is different, then it is described according to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods,
MPU cycles and TCR code retention times, determine keeping at a distance for the railway code, specifically include：
The S=S that keeps at a distance of the railway code0+Vtrain×T1+Vtrain×T2；
Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1Solved for railway code receiver TCR
Code the sum of cycle and MPU cycles, T2For the TCR code retention times.
Further, if inscribed received 3rd target information of keeping at a distance it is corresponding decoding carrier frequency with it is described
Target carrier frequency is identical, then using the corresponding effective code of the 3rd target information.
Wherein, the railway code letter that the 3rd target information sends for MPU in the inscribed received TCR that keeps at a distance
Breath.
By receiving effective code information in keeping at a distance, then using effective code, enable to the fast quick-recoveries of MPU effective
Code so that the operation of train is safer.
Specifically, due to the installation site of ATP antennas, electronic map error, ATP position errors, the decoded hysteresis of TCR
Property, MPU railway codes the reason such as keep, when headstock is across tuning area, it is possible that ATP logical places have been enter into new section and
Several even follow-up cycles of ATP logics current period still receive the situation of previous track section railway code, such as Fig. 6 institutes
Show, the low-desired signal shown in specific corresponding diagram 3, the railway code holding processing method to this scene is：
When the TCR decoding carrier frequency that the carrier frequency of track section and MPU where headstock ATP logical places are received is inconsistent,
MPU starts to keep the railway code of a cycle, in the distance S1 of holding, the distance S1 of holding, if MPU receive it is consistent
Railway code, MPU recover to use the effective code.
Keep at a distance in S1, if MPU persistently receives completely keeping at a distance after S1 without code, meter for TCR, MPU will be exported promptly
Braking.
To ensure safety, keep at a distance caused by above-mentioned railway code holding scheme, calculate train emergency braking triggering
It can be included in during curve in safe clearance.
Railway code keeping method provided in this embodiment is applied to Foundation of Beijing Metro Line 5 mobile unit development project, into
Work(solves the problems, such as to cause to fall code since train is parked in confusion region and export urgent, and improve efficiency of operation and signal system can
The property used.
Fig. 7 shows a kind of structural representation of the railway code holding meanss of track circuit confusion region provided in this embodiment
Figure, described device include：Signal judgement module 701, railway code keep module 702 and determining module 703 of keeping at a distance, wherein：
Described information judgment module 701, sentences for track circuit confusion region being inscribed received first object information
It is disconnected；
The railway code keeps module 702, if being no code information or the first object for the first object information
The corresponding decoding carrier frequency of information is different from target carrier frequency, then keeps the railway code in last cycle；
The determining module 703 of keeping at a distance, for being connect according to tuning area's ultimate range, train current vehicle speed, railway code
Device TCR decoding periods, MPU cycles and TCR code retention times are received, determines keeping at a distance for the railway code.
Specifically, described information judgment module 701, for track circuit confusion region being inscribed received first object information
Judged；The railway code keeps module 702, if being no code information or the first object for the first object information
The corresponding decoding carrier frequency of information is different from target carrier frequency, then keeps the railway code in last cycle；The determining module of keeping at a distance
703, for according to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods, the MPU cycles and
The TCR code retention times, determine keeping at a distance for the railway code.
The present embodiment judges that first object information is believed for no code information or the first object by vehicle-mounted Main Processor Unit
Cease it is corresponding decoding carrier frequency it is different from target carrier frequency when, keep the railway code in last cycle and determine to keep at a distance, can be applicable in
In improved vehicle-mounted signal device, effectively solve the problems, such as to influence signal system normal work.
Further, on the basis of above device embodiment, if the railway code keeps the first mesh described in module 702
It is no code information to mark information, then the determining module of keeping at a distance specifically includes：
The S=S that keeps at a distance of the railway code0+Vtrain×T1-Vtrain×T2；
Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1Solved for railway code receiver TCR
Code the sum of cycle and MPU cycles, T2For the TCR code retention times.
Further, on the basis of above device embodiment, described device further includes：
First effective code uses module, if for being effective code in inscribed received second target information of keeping at a distance
Information, then using the corresponding effective code of the effective code information.
Further, on the basis of above device embodiment, if the railway code keeps the first mesh described in module 702
The corresponding decoding carrier frequency of mark information is different from target carrier frequency, then the determining module of keeping at a distance specifically includes：
The S=S that keeps at a distance of the railway code0+Vtrain×T1+Vtrain×T2；
Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1Solved for railway code receiver TCR
Code the sum of cycle and MPU cycles, T2For the TCR code retention times.
Further, on the basis of above device embodiment, described device further includes：
Second effective code uses module, if in the corresponding solution of inscribed received 3rd target information of keeping at a distance
Code carrier frequency is identical with the target carrier frequency, then using the corresponding effective code of the 3rd target information.
Further, on the basis of above device embodiment, described device further includes：
Emergency braking module, if for being no code information in inscribed received 4th target information of keeping at a distance,
After keeping at a distance described in train driving, emergency brake signal is exported.
The railway code holding meanss of track circuit confusion region described in the present embodiment can be used for performing above method implementation
Example, its principle is similar with technique effect, and details are not described herein again.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, physics list is may or may not be as the component that unit is shown
Member, you can with positioned at a place, or can also be distributed in multiple network unit.It can be selected according to the actual needs
In some or all of module realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Work in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
The part that technical solution substantially in other words contributes to the prior art is stated to embody in the form of software product, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Order is used so that a computer equipment (can be personal computer, server, or network equipment etc.) performs each implementation
Method described in some parts of example or embodiment.
It should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although reference
The present invention is described in detail in previous embodiment, it will be understood by those of ordinary skill in the art that：It still can be right
Technical solution described in foregoing embodiments is modified, or carries out equivalent substitution to which part technical characteristic；And this
A little modifications are replaced, and the essence of appropriate technical solution is departed from the spirit and model of various embodiments of the present invention technical solution
Enclose.
Claims (8)
- A kind of 1. railway code keeping method of track circuit confusion region, it is characterised in that including：Vehicle-mounted Main Processor Unit MPU is inscribed track circuit confusion region received first object information and judges；If the first object information for no code information or corresponding decoding carrier frequency and the target carrier frequency of the first object information not Together, then the railway code in last cycle is kept；According to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods, MPU cycles and TCR codes Retention time, determines keeping at a distance for the railway code；Wherein, if the first object information is no code information, it is described according to tuning area's ultimate range, train current vehicle speed, Railway code receiver TCR decoding periods, MPU cycles and TCR code retention times, determine keeping at a distance for the railway code, have Body includes：The S=S that keeps at a distance of the railway code0+Vtrain×T1-Vtrain×T2；Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1For railway code receiver TCR decoding periods The sum of with the MPU cycles, T2For the TCR code retention times.
- 2. according to the method described in claim 1, it is characterized in that, the method further includes：If being effective code information in inscribed received second target information of keeping at a distance, the effective code information pair is used The effective code answered.
- 3. if according to the method described in claim 1, it is characterized in that, the corresponding decoding carrier frequency of the first object information and mesh It is different to mark carrier frequency, then it is described according to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR decoding periods, MPU Cycle and TCR code retention times, determine keeping at a distance for the railway code, specifically include：The S=S that keeps at a distance of the railway code0+Vtrain×T1+Vtrain×T2；Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1For railway code receiver TCR decoding periods The sum of with the MPU cycles, T2For the TCR code retention times.
- 4. according to the method described in claim 3, it is characterized in that, the method further includes：If identical with the target carrier frequency in the corresponding decoding carrier frequency of inscribed received 3rd target information of keeping at a distance, Use the corresponding effective code of the 3rd target information.
- 5. the method according to claim 2 or 4, it is characterised in that the method further includes：If being no code information in inscribed received 4th target information of keeping at a distance, treat to keep at a distance described in train driving Afterwards, emergency brake signal is exported.
- A kind of 6. railway code holding meanss of track circuit confusion region, it is characterised in that including：Signal judgement module, judges for track circuit confusion region being inscribed received first object information；Railway code keeps module, if being no code information or the corresponding solution of the first object information for the first object information Code carrier frequency is different from target carrier frequency, then keeps the railway code in last cycle；Keep at a distance determining module, for being decoded according to tuning area's ultimate range, train current vehicle speed, railway code receiver TCR Cycle, MPU cycles and TCR code retention times, determine keeping at a distance for the railway code；Wherein, if the railway code keep module described in first object information be no code information, it is described keep at a distance it is definite Module specifically includes：The S=S that keeps at a distance of the railway code0+Vtrain×T1-Vtrain×T2；Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1For railway code receiver TCR decoding periods The sum of with the MPU cycles, T2For the TCR code retention times.
- 7. device according to claim 6, it is characterised in that if the railway code keeps first object letter described in module Cease it is corresponding decoding carrier frequency it is different from target carrier frequency, then the determining module of keeping at a distance specifically includes：The S=S that keeps at a distance of the railway code0+Vtrain×T1+Vtrain×T2；Wherein, the S0To tune area's ultimate range, VtrainFor train current vehicle speed, T1For railway code receiver TCR decoding periods The sum of with the MPU cycles, T2For the TCR code retention times.
- 8. the device according to claim 6 or 7, it is characterised in that described device further includes：Emergency braking module, if for being no code information in inscribed received 4th target information of keeping at a distance, waits to arrange After keeping at a distance described in car traveling, emergency brake signal is exported.
Priority Applications (1)
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| JP2001219849A (en) * | 2000-02-10 | 2001-08-14 | Nippon Signal Co Ltd:The | Ground transmitter, receiver, and transmitter-receiver for track circuit |
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