CN106740995B - A kind of frequency locking processing method of adjacent rail signal leakage - Google Patents
A kind of frequency locking processing method of adjacent rail signal leakage Download PDFInfo
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- CN106740995B CN106740995B CN201611127862.6A CN201611127862A CN106740995B CN 106740995 B CN106740995 B CN 106740995B CN 201611127862 A CN201611127862 A CN 201611127862A CN 106740995 B CN106740995 B CN 106740995B
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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
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- 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)
Abstract
The embodiment of the invention discloses a kind of frequency locking processing methods of adjacent rail signal leakage, comprising: under default low-speed run state, determines the target track section of adjacent rail signal leakage；According to the target track section, target logic section corresponding with the target track section in electronic map is determined；If judgement knows that train current location corresponds to the target logic section, frequency locking instruction is sent to railway code receiver TCR.The embodiment of the present invention passes through the target logic section for determining adjacent rail signal leakage in electronic map, and judge that train reaches the target track section of adjacent rail signal leakage according to target logic section, frequency locking instruction is sent to railway code receiver, so that operation line is in the case where keeping ground motionless, inside mobile unit, the problem caused by the decoding error because of the track section revealed by adjacent rail is preferably resolved.
Description
Technical field
The present embodiments relate to technical field of rail traffic, and in particular to a kind of frequency locking processing of adjacent rail signal leakage
Method.
Background technique
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
The volume of the flow of passengers of the rapid development in capital the north, No. 5 lines increases rapidly, and the average daily volume of the flow of passengers in 2015 has reached 850,000 person-times, highest
Reach 108.5 ten thousand person-times, significantly larger than 400,000 person-times of the average daily volume of the flow of passengers estimating of design 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 failure rate of the aging of signal system equipment, No. 5 lines will further improve.Nearly 2 years, because signal system failure repeatedly leads to No. 5
Line Train delay, operation interval widen, transport power declines, passenger is detained, the extensive concern by society.
It in order to get rid of the track circuit of No. 5 lines in the future, will compress the departure interval, for example, being compressed to from 150 seconds 100 seconds.It needs
No. 5 alignment vehicles are upgraded in the case where No. 5 lines are not stopped transport, it is made to have the ability for running CBTC system 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 track circuit equipment and American Standard transponder.
Due to the reason of No. 5 line upgrading time phasings, vehicle-mounted signal device is only transformed in a phase, and ground installation includes rail
The equipment such as road circuit, transponder, semaphore remain unchanged, which means that ground installation, especially frequently results in signal system event
The equipment state of the track circuit of barrier will remain unchanged as, and fault mode and malfunction will continue to influence the normal of signal system
Work；And No. 5 lines use jointless track circuit (FS2500), are formed between two neighboring section when dividing track section
Confusion region.Frequency locking processing is an important content of improved vehicle-mounted signal device, and the frequency locking processing of mistake will affect train
Operational safety, and the prior art lack in track circuit confusion region adjacent rail signal leakage frequency locking processing method.
Summary of the invention
Due to the above-mentioned problems in the prior art, the embodiment of the present invention proposes a kind of frequency locking of adjacent rail signal leakage
Processing method.
The embodiment of the present invention proposes a kind of frequency locking processing method of adjacent rail signal leakage, comprising:
Under default low-speed run state, the target track section of adjacent rail signal leakage is determined；
According to the target track section, target logic area corresponding with the target track section in electronic map is determined
Section；
If judgement knows that train current location corresponds to the target logic section, sends and lock to railway code receiver TCR
Frequency instructs.
Optionally, the method also includes:
If the TCR receives the frequency locking instruction, carrier frequency and code frequency are screened according to frequency locking instruction；
If screening obtains first object carrier frequency corresponding with frequency locking instruction and first object code frequency, by described first
Target carrier frequency and first object code frequency are sent to vehicle-mounted Main Processor Unit MPU；Otherwise it sends to the MPU without code information.
Optionally, the method also includes:
If judgement knows that train current location far from the target logic section, sends frequency locking releasing to the TCR and refers to
It enables.
Optionally, the method also includes:
If the TCR, which does not receive the frequency locking instruction or receives the frequency locking, releases instruction, obtained according to screening
Maximum second target carrier frequency of energy and the second object code frequency, and second target carrier frequency and second object code are taken place frequently
It send to the MPU.
Optionally, the method also includes:
Code information and train current location calculate mobile authorization and protection curve to the MPU based on the received；
Wherein, the code information includes the first object carrier frequency, first object code frequency, without code information, described the
Two target carrier frequencies and second object code frequency.
Optionally, the electronic map is the map in the train automatic controlling system CBTC based on communication.
As shown from the above technical solution, the embodiment of the present invention passes through the target for determining adjacent rail signal leakage in electronic map
Logic block, and judge that train reaches the target track section of adjacent rail signal leakage according to target logic section, to railway code
Receiver sends frequency locking instruction, so that operation line is in the case where keeping ground motionless, it is preferable to solve inside mobile unit
Because the track section revealed by adjacent rail decoding error caused by problem.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is 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 (A) and (B) are the curve synoptic diagram of adjacent rail signal leakage in the prior art；
Fig. 2 is the analysis schematic diagram of adjacent rail signal leakage in the prior art；
Fig. 3 is a kind of process signal of the frequency locking processing method for adjacent rail signal leakage that one embodiment of the invention provides
Figure；
Fig. 4 is a kind of structural representation of the frequency locking processing system for adjacent rail signal leakage that one embodiment of the invention provides
Figure.
Specific embodiment
With reference to the accompanying drawing, further description of the specific embodiments of the present invention.Following embodiment is only used for more
Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
Adjacent rail signal leakage problem is described first below:
Its parameter can drift about ground track circuit device element with changes in environmental conditions as time goes by, in addition right
Ground installation safeguards the factors such as improper, eventually leads to track code signal and leaks to track section adjacent thereto, as Fig. 1 (A) is
The F6 signal of the curve synoptic diagram of signal normal distribution, 6G shown in Fig. 1 (B) leaks to 8G, wherein track circuit sends track
Code be it is directive, signaling direction is opposite with current of traffic.
8G shown in Fig. 1 (B) is set as rail of turning back, train drive into after 8G rail the operation that will carry out turning back (in the Fig. 1 (B),
It turns back and means that train is travelled from right to left to the parking of 8G rail, completion switches end to end, then travels to the right).Ground is set
The standby arrangement for mainly completing reversed route and the retrograde orbit code of turning back is (that is, signaling direction can be by the change to the right in Fig. 1 (B)
For to the left) transmission, under normal circumstances, 1 end (left end of train) mobile unit control train drive into 8G and come to a complete stop after, it is vehicle-mounted to set
Standby and ground installation starts to turn back, and mobile unit controls train by 2 ends (right end of train) after the completion of turning back and sails out of 8G.Ground
Equipment judges train, and in the condition that 8G comes to a complete stop, for the 8G section, by train occupation several seconds, (this data is according to operation interval and turns back
Ability etc. is determining, and generally 30 seconds to 45 seconds), that is to say, that ground installation judges that train, can not be definitely when 8G comes to a complete stop
Know whether train drives into 8G completely, does not also know whether to have stopped.
It can bring about following problem in this way: if train fails to stop in 8G contraposition before the deadline for some reason
Vehicle, and be to continue with and moved forward by 1 end control train low speed, and ground installation has been completed to turn back at this time, sends and rolls over to train
Return the railway code of rail to platform direction.In this case, 8G is by train occupation, and 1 end mobile unit is not (because mobile unit starts
Turn back, so 2 end mobile units do not work also) the railway code 2/2N for not receiving 8G (is indicated into the 2 track section skies in front
It is not busy), as shown in Fig. 2, railway code 0/0N (the expression front rail-free section of 6G will be received positioned at the 1 end mobile unit of 8G
It is idle), if the distance of train current location to the end 8G is greater than the safe clearance of setting, do not considering other protection logics
In the case of, mobile unit is shown as " code is effective " and " promptly triggering speed (EBI) will not be 0 " at this time, will not export urgent
Braking, it is meant that driver can continue to move forward in 1 end control train, this has resulted in the logic error of signal system, and
It and is grave error.
Fig. 3 shows a kind of flow diagram of the frequency locking processing method of adjacent rail signal leakage provided in this embodiment,
Include:
S301, under default low-speed run state, determine the target track section of adjacent rail signal leakage.
It specifically, i.e., can only be to adopting since railway code receiver (TCR) is to the post-processing characteristic of the demodulation of track code signal
Sample data carry out the operations such as digital filtering, FFT, the various frequency contents that present sample data are included are obtained, then according to energy
The principles such as amount size filter out unique carrier frequency and code frequency, output this to vehicle-mounted Main Processor Unit (MPU).As it can be seen that TCR has no way of
Learn whether current sampled data includes the frequency content for revealing, for this purpose, can only carry out in subsequent Filtering system
Logical process, in order to filter out by faced rail reveal track section, need train low speed run, with TCR to full line into
The scanning of row independent decoding, and data are recorded, subsequent to pass through manual analysis, you can get it is faced the track section of rail leakage, then is incited somebody to action
It is configured into designed electronic map, is inquired for MPU.
For example, TCR is by the way that resampling after sampled data progress digital filtering, adding window, the operations such as FFT are extracted
All frequency contents in sampled signal filter out carrier frequency and its corresponding code used in the line of Beijing 5 in these frequencies
Frequently, carrier frequency and its code frequency that CF signal amplitude is higher than the decoding threshold of setting, the as load of coincidence decoding condition are filtered out then
Frequency and its code frequency.
S302, according to the target track section, determine target corresponding with the target track section in electronic map
Logic block.
Wherein, track section be the existing railway system in linear module, logic block be railway new system in electronically
The linear module of figure.
The target track section is that there are the track sections of adjacent rail signal leakage.
The target logic section is the logic block in the corresponding electronic map of target track section.
The electronic map is the map in the train automatic controlling system CBTC based on communication.
If S303, judgement know that train current location corresponds to the target logic section, sent out to railway code receiver TCR
Frequency locking is sent to instruct.
Specifically, after MPU obtains train position, real-time query local terminal ATP antenna (headstock ATP antenna or the tailstock ATP days
Line) whether enter the track section for being faced rail leakage, if into frequency locking order being sent to TCR, if left, to TCR
It sends frequency locking and releases order.Frequency locking order is designed to consistent with by the carrier frequency of track section that rail is revealed is faced, that is, if by facing
The carrier frequency of the track section of rail leakage is F3, then needing the frequency that MPU will include into the frequency locking order that TCR is sent when frequency locking
It also is F3.
Frequency locking releases order and is designed to 0, that is, the frequency locking sent to TCR is released and ordered by MPU when needing to release frequency locking.It is special
Not, MPU directly sends frequency locking releasing order to TCR after train does not obtain position or position loss.
To solve the problems, such as that adjacent rail signal leakage is brought, processing of the mobile unit to railway code in the transformation of one phase of train
Targetedly frequency locking design has been carried out, i.e., has first found the position of adjacent rail signal leakage, when Train Approaching or these has been run to and lets out
When revealing position, frequency locking instruction is sent from MPU to TCR, TCR preferentially demodulates carrier frequency as defined in frequency locking order and code frequency information, and will
Decoding result is reported when cannot demodulate carrier frequency as defined in frequency locking order and code frequency information to MPU, TCR, is reported to MPU without code,
No code is the processing mode of guiding safety, will not cause the mistake of signal system.
By taking the frequency locking processing that the adjacent rail signal of Foundation of Beijing Metro Line 5 is revealed as an example, comprising the following steps:
A1, No. 5 lines run a track with low speed, find out the track section for having adjacent rail leakage on ground rail；
A2, the information for the track section revealed by adjacent rail is incorporated into electronic map, determines corresponding in electronic map patrol
Collect section；
A3, it (is shown in electronic map when train passes through the track section that these adjacent rails are revealed and passes through corresponding logic
Section) when, MPU sends frequency locking order to TCR；
If A4, TCR are received and the consistent railway code of frequency locking order, then it is assumed that receive normal signal and be directly output to MPU；
If the railway code that TCR is received in frequency locking order be included in railway code it is inconsistent, export " no code ", MPU be oriented to safe place
Reason.
Specifically, adjacent rail signal leakage problem, basic solution are adjustment ground, are fundamentally guaranteed ATP days
The track code signal that line receives is exactly the signal that it is currently located track section transmission, rather than adjacent rail reveals the letter to come
Number.
In practical applications, since No. 5 lines are operating lines, other risks, frequency locking may be introduced to the adjustment on ground
Processing scheme is in the case where keeping ground motionless, from mobile unit inside, to solve the track because being revealed by adjacent rail
Problem caused by the decoding error of section.The line mobile unit development project of Beijing 5 has successfully solved the village Song Jia 8G, the Temple of Heaven east
The track sections such as door 20G are because of TCR decoding error problem caused by being faced rail leakage, to solve adjacent rail signal leakage bring
Problem.Further, it needs to upgrade No. 5 alignment vehicles in the case where No. 5 lines are not stopped transport, has it and run in the future
The ability of CBTC system.In the interim transformation process of No. 5 line signal systems, mobile unit is upgraded, compatibility is existing
Ground track circuit equipment and American Standard transponder；The track electricity of No. 5 lines is got rid of after the completion of No. 5 line signal system modernization overlays
Road will be compressed the departure interval, for example, being compressed to from 150 seconds 100 seconds.
The present embodiment passes through the target logic section for determining adjacent rail signal leakage in electronic map, and according to target logic
Section judges that train reaches the target track section of adjacent rail signal leakage, sends frequency locking instruction to railway code receiver, so that
Line is runed in the case where keeping ground motionless, inside mobile unit, preferably resolves the track because being revealed by adjacent rail
Problem caused by the decoding error of section.
Further, on the basis of above method embodiment, the method also includes:
If S304, the TCR receive the frequency locking instruction, carrier frequency and code frequency are sieved according to frequency locking instruction
Choosing.
If S305, screening obtain first object carrier frequency corresponding with frequency locking instruction and first object code frequency, by institute
It states first object carrier frequency and first object code frequency is sent to vehicle-mounted Main Processor Unit MPU；Otherwise it sends to the MPU without code
Information.
Wherein, it is corresponding with frequency locking instruction after the first object carrier frequency receives effective frequency locking instruction for TCR
Carrier frequency.
The first object code frequency is code frequency corresponding with the first object carrier frequency.
Specifically, if receiving effective frequency locking order, the preferential carrier frequency for exporting coincidence decoding condition and its code frequency are extremely
MPU；If receiving effective frequency locking order but the carrier frequency of not corresponding coincidence decoding condition and its code frequency, TCR is to MPU
Output is without code；If do not receive effective frequency locking order or receive release frequency locking order the case where, TCR according to energy size from
The highest carrier frequency of energy and its output of corresponding code frequency are filtered out in the carrier frequency of coincidence decoding condition to MPU.
By sending different code information to MPU, enabling to MPU root according to different carrier frequency and code frequency the selection result
According to the adjacent rail signal leak case of received code information processing.
Further, on the basis of above method embodiment, the method also includes:
If S306, judgement know that train current location far from the target logic section, sends frequency locking solution to the TCR
Except instruction.
By releasing instruction far from transmission frequency locking after target logic section, so that TCR timely learning train operation state, i.e.,
Track section far from the leakage of adjacent rail signal.
Further, on the basis of above method embodiment, the method also includes:
If S307, the TCR, which do not receive the frequency locking instruction or receive the frequency locking, releases instruction, according to screening
Maximum second target carrier frequency of energy and the second object code frequency are obtained, and by second target carrier frequency and second object code
Frequency is sent to the MPU.
Wherein, second target carrier frequency is after TCR does not receive frequency locking instruction or receives frequency locking releasing instruction, in institute
There is screening in carrier frequency to obtain the maximum carrier frequency of energy.
The second object code frequency is code frequency corresponding with second target carrier frequency.
By the maximum carrier frequency of screening energy and its correspondence code frequency, it is sent to MPU, MPU is enabled to voluntarily to judge and locate
Manage adjacent rail signal leak case.
Further, on the basis of above method embodiment, the method also includes:
Code information and train current location calculate mobile authorization and protection curve based on the received by S308, the MPU；
Wherein, the code information includes the first object carrier frequency, first object code frequency, without code information, described the
Two target carrier frequencies and second object code frequency.
Specifically, after by the frequency locking processing to the track section revealed by adjacent rail, TCR is exported to the railway code of MPU
Information is the railway code of track section where ATP antenna or without code, and MPU calculates shifting according to these information combination current locations
Dynamic authorization, protection curve, and train is protected.
Fig. 4 shows a kind of structural schematic diagram of the frequency locking processing system of adjacent rail signal leakage provided in this embodiment,
It include: vehicle-mounted Main Processor Unit (MPU) 401 and railway code receiver (TCR) 402；
The MPU 401 is used for:
Under default low-speed run state, the target track section of adjacent rail signal leakage is determined；
According to the target track section, target logic area corresponding with the target track section in electronic map is determined
Section；
If judgement knows that train current location corresponds to the target logic section, frequency locking is sent to the TCR402 and is referred to
It enables；
The TCR 402 is used for:
Receive the frequency locking instruction that the MPU 401 is sent.
The present embodiment passes through the target logic section for determining adjacent rail signal leakage in electronic map, and according to target logic
Section judges that train reaches the target track section of adjacent rail signal leakage, sends frequency locking instruction to railway code receiver, so that
Line is runed in the case where keeping ground motionless, inside mobile unit, preferably resolves the track because being revealed by adjacent rail
Problem caused by the decoding error of section.
Further, on the basis of above-mentioned apparatus embodiment, the TCR 402 is also used to:
If receiving the frequency locking instruction, carrier frequency and code frequency are screened according to frequency locking instruction；
If screening obtains first object carrier frequency corresponding with frequency locking instruction and first object code frequency, by described first
Target carrier frequency and first object code frequency are sent to vehicle-mounted Main Processor Unit MPU 401；Otherwise nothing is sent to the MPU 401
Code information.
Further, on the basis of above-mentioned apparatus embodiment, the MPU 401 is also used to:
If judgement knows that train current location far from the target logic section, sends frequency locking to the TCR402 and releases
Instruction.
Further, on the basis of above-mentioned apparatus embodiment, the TCR 402 is also used to:
If not receiving the frequency locking instruction or receiving the frequency locking and release instruction, energy maximum is obtained according to screening
The second target carrier frequency and the second object code frequency, and second target carrier frequency and second object code frequency be sent to described
MPU 401。
Further, on the basis of above-mentioned apparatus embodiment, the MPU 401 is also used to:
Code information and train current location calculate mobile authorization and protection curve based on the received；
Wherein, the code information includes the first object carrier frequency, first object code frequency, without code information, described the
Two target carrier frequencies and second object code frequency.
The frequency locking processing system of adjacent rail signal leakage described in the present embodiment can be used for executing above method embodiment,
Its principle is similar with technical effect, and details are not described herein again.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
It is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although reference
Invention is explained in detail for previous embodiment, those skilled in the art should understand that: it still can be right
Technical solution documented by foregoing embodiments is modified or equivalent replacement of some of the technical features；And this
It modifies or replaces, the spirit and model of technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (4)
1. a kind of frequency locking processing method of adjacent rail signal leakage characterized by comprising
Under default low-speed run state, the target track section of adjacent rail signal leakage is determined；
According to the target track section, target logic section corresponding with the target track section in electronic map is determined；
If judgement knows that train current location corresponds to the target logic section, frequency locking is sent to railway code receiver TCR and is referred to
It enables；
If judgement knows that train current location far from the target logic section, sends frequency locking to the TCR and releases instruction；
If the TCR, which does not receive the frequency locking instruction or receives the frequency locking, releases instruction, energy is obtained according to screening
Maximum second target carrier frequency and the second object code frequency, and second target carrier frequency and second object code frequency are sent to
MPU。
2. the method according to claim 1, wherein the method also includes:
If the TCR receives the frequency locking instruction, carrier frequency and code frequency are screened according to frequency locking instruction；
If screening obtains first object carrier frequency corresponding with frequency locking instruction and first object code frequency, by the first object
Carrier frequency and first object code frequency are sent to vehicle-mounted Main Processor Unit MPU；Otherwise it sends to the MPU without code information.
3. the method according to claim 1, wherein the method also includes:
Code information and train current location calculate mobile authorization and protection curve to the MPU based on the received；
Wherein, the code information include first object carrier frequency, first object code frequency, without code information, second target carrier frequency and
The second object code frequency.
4. the method according to claim 1, wherein the electronic map is the train auto-matic control based on communication
Map in system CBTC.
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