CN110329308A - Track fracture inspection method and system - Google Patents
Track fracture inspection method and system Download PDFInfo
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- CN110329308A CN110329308A CN201910538920.1A CN201910538920A CN110329308A CN 110329308 A CN110329308 A CN 110329308A CN 201910538920 A CN201910538920 A CN 201910538920A CN 110329308 A CN110329308 A CN 110329308A
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- 238000007689 inspection Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 210000002105 tongue Anatomy 0.000 claims description 47
- 238000004891 communication Methods 0.000 claims description 24
- 230000009977 dual effect Effects 0.000 claims description 20
- 238000004422 calculation algorithm Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 13
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101100434411 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) ADH1 gene Proteins 0.000 description 1
- 101150102866 adc1 gene Proteins 0.000 description 1
- 101150042711 adc2 gene Proteins 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
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- 238000004886 process control Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 210000005181 root of the tongue Anatomy 0.000 description 1
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- 239000011540 sensing material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a rail fracture inspection method, which comprises the following steps: controlling a transmitter to transmit an electrical signal to N vibration generators, wherein N is an integer greater than 0; controlling the vibration generator to convert the electric signal into a vibration signal and transmitting the vibration signal to the steel rail; controlling M vibration sensors corresponding to the vibration generator to convert the received vibration signals into electric signals and send the electric signals to a receiver, wherein M is an integer greater than 0; and judging whether the track is broken or not according to the electric signal. The track fracture inspection method and system can realize real-time and efficient detection of track fracture, can detect a plurality of components in a turnout area, and are not interfered by an electric loop and a track signal; the control method and the equipment are flexible in arrangement, cost is saved, and control and management are facilitated; the system architecture is safe and stable, and the accuracy is high.
Description
Technical field
The invention belongs to field of track traffic, in particular to a kind of track fracture inspection method and system.
Background technique
Track fracture, which is checked, is related to the important detection project of track circuit safe operation as one, increasingly draws attention.
For section rail fracture, the method mostly used greatly in the prior art is, by ZPW2000A track circuit equipment, to utilize telecommunications
Number detect whether to occur the rail fracture failure of electrical on-off.Method is: transmitter sends electric signal, and electric signal passes through rail
Afterwards, it is received by the receiver；In case of broken rail, electric signal can not reach receiver, this Times failure by rail.But for
Track switch interval circuit can not be detected, at present since the equipment such as slide plate lead to its electric short circuit on route using electric signal
It is mostly that works department periodically flaw detection and inspection is needed to realize the inspection work to rail fracture.
Periodically flaw detection and inspection mainly uses ultrasonic inspection vehicle or manual inspection mode, advantage be testing precision compared with
Height can find rail infant cracking；But speed of detection is slow, low efficiency, occupies more Window time, does not accomplish round-the-clock inspection
It surveys.
How to realize the detection of the real-time high-efficiency of track fracture and avoids switch zones complexity electric loop and track electricity
Road signal interference is current orbit traffic safety technology field urgent problem to be solved.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of track fracture inspection method, comprising:
Control transmitter transmits the electrical signal to N number of vibration machine, and wherein N is the integer greater than 0；Control the vibration hair
The electric signal is converted to vibration signal by raw device, and passes to rail；
It controls M vibrating sensor corresponding with the vibration machine and the vibration signal received is converted into electricity
Signal simultaneously sends receiver for the electric signal, and wherein M is the integer greater than 0；
Judge whether track is broken according to the electric signal.
Further, described to judge whether track occurs fracture and include: according to the electric signal
It controls the receiver and judges whether track is broken according to the electric signal received, and by judging result
It is sent to control centre；
And/or
Control the receiver and send the control centre for the electric signal received, and by control centre according to
The electric signal judges whether track is broken.
Further, the control transmitter transmits the electrical signal to N number of vibration machine and includes:
Control transmitter will be converted to the road N amplification electric signal by electric signal all the way by discharge circuit, be sent to N number of vibration hair
Raw device, wherein N is the integer greater than 1.
Further, described to judge whether track occurs fracture and include: according to the electric signal
It controls and receives device and received multiple signals is handled using polling mode, individually handle one in each polling cycle
Road signal.
Further, method includes:
N number of vibration machine is arranged on track tongue and/or heart rail, wherein N is the integer greater than 1.
Further, N number of vibration machine is arranged on track tongue and/or heart rail and includes:
First vibration machine is arranged on the first tongue of rail switch；
Second vibration machine is arranged on the second tongue of the rail switch；
The receiver receives the first electric signal of the first vibrating sensor corresponding with the first vibration machine；
The receiver receives the second electric signal of the first vibrating sensor corresponding with the second vibration machine；
It is described to judge whether track occurs fracture and include: according to the electric signal
By the first electric signal and the second electric signal respectively compared with corresponding normal recordings, the signal caused by environmental factor
Exception is checked.
Further, the electric signal that the control receiver receives judges whether track is broken, and wraps
It includes:
The receiver is set as dual processors, and different algorithms is respectively adopted to the electric signal received in the dual processors
It is analyzed and processed；
The analysis processing includes comparing the difference of the electric signal and track normal condition, judges whether track is broken.
Also a kind of track of the present invention is broken inspection system, comprising:
Control centre, at least one transmitter, at least one receiver, at least one vibration machine, at least one vibration
Dynamic sensor；
The control centre is for sending vibration control instruction to the transmitter；
The transmitter, which is used to be converted to electric signal according to vibration control instruction, is sent at least one described vibration
Generator；
The vibration machine is used to the electric signal being converted to vibration signal, and passes to rail；
The vibrating sensor is for receiving the vibration signal, and after the vibration signal received is converted to electric signal
It is sent to the receiver；
The receiver is used to receive the electric signal of at least one vibrating sensor；
The receiver is also used to electric signal based on the received and judges whether track is broken, and judging result is sent
To the control centre；And/or send the control centre for the electric signal received, by the control centre according to
The electric signal judges whether track is broken.
Further,
The system contains at least two vibration machine, the vibration machine be arranged on two tongues of track or
It is arranged on the tongue and heart rail of track；
At least two vibration machine is connect with the same transmitter.
Further,
The system contains at least two vibrating sensor, the vibration machine be arranged on two tongues of track or
It is arranged on the tongue and heart rail of track；
At least two vibrating sensor is connect with the same receiver.
Further,
The transmitter includes first processor, second processor, field programmable gate array, the first processor and
The second processor is connected with the field programmable gate array；
The first processor and the second processor are used to send the scene for vibration control instruction can
Program gate array；
The field programmable gate array is used for the vibration control from first processor and second processor
Instruction is modulated, and generates two groups of modulating frequency information；
The field programmable gate array is also used to count described two modulating frequency information, generates two groups of countings
Information, and inspection processor is sent back by two groups of count informations, described time inspection processor is the first processor or institute
State second processor；
Described time inspection processor is compared judgement to two groups of count informations.
Further,
The receiver includes first processor and second processor；
The first processor and second processor for receiving vibration signal respectively；
The first processor and second processor are respectively used to handle received vibration signal, obtain respective
Calculating critical data；
The first processor and second processor are respectively used to carry out crack detection according to the respective critical data
It calculates, the first processor and second processor execute the crack detection using different algorithms and calculate, and obtain judgement knot
Fruit；
The first processor is used to send the second processor for its described critical data and judging result；It is described
Second processor is for the critical data and judging result of the first processor and second processor to be compared.
Further,
The receiver further includes backboard；
The backboard includes power supply module interface and communication module interface；
The power supply module interface includes power supply power supply interface and solar powered interface；
The communication module interface includes CAN, 485, USB interface.
Track fracture inspection method of the invention and system can be realized the real-time high-efficiency detection of track fracture, can be right
Multiple components of switch zones are detected, not by the interference of electric loop and track signal；Control method and equipment arrangement spirit
Living, save the cost, convenient for control management, detection covering is comprehensive；System architecture is steady safely, by returning to the frequency information of transmission
It examines, docking collection of letters breath carries out dual processors comparison, carries out reference judgement to tongue reception information all, improves the accurate of detection process
Property.System and device is designed using back plate type, facilitates modular arrangements.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Pointed structure is achieved and obtained in claim and attached drawing.
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 this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 shows a kind of track fracture inspection method flow chart according to an embodiment of the present invention；
Fig. 2 shows a kind of track fracture inspection system schematics according to an embodiment of the present invention；
Fig. 3 shows turnout rail fracture according to an embodiment of the present invention and checks system schematic；
Fig. 4 shows a kind of transmitter architecture schematic diagram according to an embodiment of the present invention；
Fig. 5 shows a kind of receiver architecture schematic diagram according to an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention clearly and completely illustrated, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of track fracture inspection method, after being transmitted on rails by generation vibration signal, by
Whether the vibration signal that vibrating sensor returns, detection track occur fracture defect, and the fracture defect includes that track is disconnected, split
Line etc. is abnormal.In the following, being illustrated by taking the detection of turnout rail broken rail as an example to method of the invention.
As shown in Figure 1, a kind of track fracture inspection method of the embodiment of the present invention includes:
(1) vibration control instruction is sent to transmitter.In the present embodiment, control instruction, control are sent by control centre
Center be have data storage, data processing, interactive capability terminal.In practical application, a control centre can root
One or more transmitters are communicatively connected to according to control area and implementation demand.The communication connection is including wired connection or wirelessly
Connection, wired connection such as passes through CAN and 485 communication interfaces carry out wire communication, is wirelessly connected as communicated by 4G network.
Vibration control instruction refers to the order of control vibrating sensor vibration, including specified sensor information, specified vibration frequency, specified
Time of origin etc..Illustratively, control centre sends a vibration control instruction, and occurrence frequency is specified sensor 1 immediately
The vibration of 180kHz frequency.
(2) vibration machine is transmitted the electrical signal to.Control instruction of the transmitter according to the above-mentioned steps (1) received, hair
It send and the consistent modulation signal of frequency requirement to vibration machine.In the present embodiment, a transmitter may be coupled to N number of vibration
Dynamic generator, wherein N is the integer greater than 0.It can according to need, control transmitter:
Send simultaneously all the way electric signal to N number of vibration machine；Alternatively,
It controls transmitter and sends multi-channel electric signal to N number of vibration machine, wherein N is the integer greater than 1.Multiple signals
Frequency can be different, and timesharing is sent.
In the present embodiment, N number of vibration machine is arranged on track tongue, heart rail, wherein N is the integer greater than 1.Such as
Shown in Fig. 3, vibration machine can be respectively set on the tongue A, tongue B of track, can also be arranged on tongue A, heart rail
Vibration machine can also be respectively provided with vibration transmitter on tongue A, tongue B, heart rail.Preferably, the point of said one track switch
Vibration machine on rail, heart rail can be controlled by a transmitter.In the present embodiment, control centre controls transmitter simultaneously
Electric signal all the way is sent simultaneously to vibration machine connected to it, i.e., sends same modulation signal to multiple vibrations simultaneously
Generator.In the present embodiment, a transmitter shares the output of three tunnels, and point tongue A, tongue B, the heart can be connected in the case of connecing entirely
Rail.In the present embodiment, the first vibration machine and corresponding first vibrating sensor are set on tongue A, on tongue B
Second vibration machine and corresponding second vibrating sensor are set, third vibration machine and therewith is set on heart rail
Corresponding third vibrating sensor.Transmitter is to realize to generate a signal by hardware circuit, is sent to the vibration of three tunnels and occurs
Device.It is the pulse train modulated that transmitter, which is given per what is sent all the way, achievees the purpose that prevent interference by signal modulation.
In the present embodiment, inspection also is carried out back to modulated signal by dual processors and FPGA before sending electric signal.Transmitter is logical
It crosses communication interface and receives vibration control instruction, carry out signal modulation respectively according to two cpu instructions of transmitter and obtain two groups of frequencies
Information, and two group frequency informations are counted, one of CPU is sent by two groups of count informations and is compared, and compares one
When cause, it is believed that modulated signal is errorless, can send.
(3) vibration signal is sent to rail.It controls vibration machine and the electric signal received is converted into vibration signal, and
Pass to rail.As shown in figure 3, vibration machine can be arranged in the root of tongue and a side of heart rail in the present embodiment
On.
(4) electric signal is converted by vibration signal.Control is corresponding with vibration machine, and (vibrating sensor is corresponding to be connect
Receive the signal of an intended vibratory generator) vibration signal received is converted to electric signal and will be electric by M vibrating sensor
Signal is sent to receiver, and wherein M is the integer greater than 0.In the present embodiment, receiver can be connected with multiple vibrating sensors
It connects, is respectively processed after receiving the signal of multiple vibrating sensors, in the present embodiment, receiver receives different vibrating sensors
Signal, vibration sensor signal of not going the same way is distinguished according to different port on the access of access receiver.It, can in actual implementation
To send the multiple vibration sensor signals arranged on a track switch in a receiver.In a further embodiment, root
Needs are factually applied, such as track structure difference, vibrating sensor type selecting are different, treatment effeciency requirement, it can be by same generator
One group of vibrating sensor of control receives processing signal by multiple receivers.
(5) judge whether rail is broken.Judge whether track is broken based on the received electrical signal, that is, uses
Identification of Cracks algorithm will receive electric signal and be compared with the electric signal of rail normal condition, be more than normal note when receiving signal
When the threshold value of record, it is believed that fracture defect occurs in rail.In the present embodiment, it is flat based on multiple measurement data for providing broken rail judgement
Value after mean value, i.e. reception signal progress window are average.
Further, in this embodiment also according to two tongue signals respectively compared with corresponding normal recordings, to environment
Factor, the abnormal signal as caused by sleet etc. are checked or are compensated, and broken rail is avoided to report by mistake.Specifically, two tongue structure phases
Seemingly, it is respectively at fitting track and repels away from the state of track, when tongue is in both states, the signal key number of normal recordings
Meet certain threshold value respectively according to value, when there is sleet interference, may cause the signal critical data of the first tongue-tongue A
Value is exceptional value, that is, is more than the normal recordings threshold value of tongue A state (be bonded or repel away from) at this time, also needs to refer to second at this time
Tongue-tongue B signal key data values, if the key data values of B also be proximally more than tongue B normal recordings threshold
Value, then it is assumed that the deviation of signal of tongue A and B are as caused by environmental factor, so that the track switch environment to tongue A and B carries out
It checks.A possibility that being broken simultaneously due to tongue A and B is smaller, and when leading to deviation of signal due to environmental factor, due to point
Rail structure is similar, and the direction (both greater than or a certain amount of less than normal recordings threshold value) of deviation is also similar, therefore can pass through two
The signal of tongue refers to mutually, reduces broken rail erroneous judgement caused by environmental factor.In the present embodiment, the execution of rail fracture is judged
There are two types of modes:
(a) it controls and receives device and judges whether track is broken according to the electric signal received, " two take with use
Two " dual processors compare framework, in the present embodiment, by realizing different fractures inspection algorithms using two sets codings in two CPU,
The analysis processing to data are received is realized respectively, and comparison and the difference of normal condition obtain the judgement whether being broken.Connect
Receipts device uses frame design, calculates acquisition data difference algorithm, needs to obtain after dual processors compare critical data and result later
Final result out.When comparison result is inconsistent, it is believed that receiver failure issues Trouble Report to control centre." two take two " frame
Structure can substantially reduce system wrong report number, increase robustness.Judging result is sent control centre by receiver.Receiver
CPU handles received multiple signals using poll, and signal all the way is individually handled in each polling cycle, will be to from difference
The data distribution of sensor is handled in different polling cycles.For example the acquisition data of calculating tongue A are obtained a result in 0.5s,
The data operation of tongue B is calculated in next 0.5s.Receiver persistently receives multiple signals, if received every time a certain
The signal on road just immediately treats, then be easy to cause inadequate resource, handles multiple signals by process control poll, processing is per all the way
When signal, the latest data for obtaining the road signal is calculated, and can be guaranteed that broken rail recognizer calculation resources are enough in this way, be mentioned
The efficiency and stability of high operation.
(b) control and receive device and send the control centre for the electric signal received, and by control centre according to
The electric signal judges whether track is broken.Control centre can also carry out analysis using above-mentioned " two take two " framework and sentence
It is disconnected.
Judged using (a) mode, real-time is high, does not need a large amount of electrical signal information transmission, reduces in control
When heart system burden, especially control centre connect multiple receivers, each receiver is individually handled, more efficient.Using (b)
Mode is judged that the processor of control centre, which compares Embedded receiver, has better processing capacity and scalability,
And multiple received electric signal and processing result can be stored, count, analyze.When practical application, connected according to control
Relationship and demand select suitable processing mode.
Based on identical inventive concept, the embodiment of the present invention also provides a kind of track fracture inspection system, specifically includes that control
Center processed, at least one transmitter, at least one receiver, at least one vibration machine, at least one vibrating sensor；
Control centre is for sending vibration control instruction to the transmitter；
Transmitter, which is used to be converted to electric signal according to vibration control instruction, is sent at least one described vibration machine；
Vibration machine passes to rail for converting electrical signals to vibration signal；
Vibrating sensor is sent to institute after the vibration signal received is converted to electric signal for receiving vibration signal
State receiver；
Receiver is used to receive the electric signal of at least one vibrating sensor；
Receiver is also used to electric signal based on the received and judges whether track is broken, and sends control for judging result
Center processed；
Receiver can also send control centre for the electric signal received, by the control centre according to the telecommunications
Number judge whether track is broken；
Specifically, judge whether current rail produces fracture failure by algorithm for pattern recognition.
As shown in Fig. 2, only to include a transmitter, a receiver, a vibration machine, a vibrating sensor
For, show the connection relationship of all kinds of devices；As shown in figure 3, showing using track fracture inspection system to track switch
The system deployment schematic diagram that tongue and heart rail are detected, generator indicates that above-mentioned vibration machine, sensor indicate vibration in figure
Dynamic sensor.System is described in detail below with reference to Fig. 1, Fig. 3.
As shown in figure 3, system realizes three road rail of detection: point tongue A rail, point tongue B rail, road frog rail simultaneously.
In point tongue: vibration machine is mounted on tongue butt, as being used for detecting the generator 1 of tongue A, for detecting tongue in figure
The generator 2 of B；Vibrating sensor is mounted on the point of switch, as being used for detecting the sensor 1 of tongue A, for detecting tongue in figure
The sensor 2 of B.In road frog rail: vibration machine and vibrating sensor are separately mounted to two sides of heart rail, as sent out in figure
Raw device 3 and sensor 3.When executing detection, by generating vibration wave in generator, receives in corresponding receiver and passed by rail
After the wave passed, by analyzing crackle time-domain and frequency-domain, to judge whether this section of rail be cracked or is broken.Pair of above-mentioned transmitter
It should be related to (transmission-reception relationship) are as follows: 1 respective sensor 1 of generator, 2 respective sensor 2 of generator, generator 3 is to inductive sensing
Device 3.
System also power supply unit, wireless communication networks, trackside equipment cabinet.
Power supply unit turns 24V power module using 220V, also may be selected to be replaced using solar-electricity source module, realize
Power demands outside sunny region room.Wireless communication networks module is that trackside detecting devices and client server establish channel radio
Road can realize 4G transmission according to real network situation.According to user demand, can choose with control centre through wire communication or
Select wireless communication networks communication.Receiver has reserved CAN and 485 communication interfaces to carry out wire communication.If you need to wireless telecommunications, by
In reserving wireless communication interface on the receiver, only 4G communication antenna need to be installed outside cabinet, install 4G channel radio additional in cabinet
Interrogate module.Trackside equipment cabinet is used for the installation of transmitter, receiver, power supply unit and wireless communication module, Yi Jilei
Electricity protection, degree of protection are not less than IP65.Trackside equipment cabinet uses expansible back plate design, compatible CAN, 485, USB interface；
For different duty requirements, can select respectively indoor power supply power supply, external solar panels power supply power supply, wireless communication module or
Wire communication interface is freely combined.
In the present invention, transmitter architecture as shown in figure 4, dual processors (first processor and second processor) according to CAN bus
Order is received, use two takes two frameworks；Two CPU are all made of TMS320, which has very strong anti-interference ability, and dominant frequency reaches
150MHz, the high speed of processor ensure the timely processing of task and event.Internal ROM Space be 8KB, ram space 36KB,
The space FLASH is 256KB.Internal address space abundant saves exterior extension.And there is I/O expansion function abundant
Energy.FPGA (Field-Programmable Gate Array, i.e. field programmable gate array) is realized according to cpu instruction and is modulated
Signal, after giving the frequency information that modulation generates to dual processors inspection, the frequency information upchecked is sent to filter and amplification electricity
Road.Specifically, in the present embodiment, inspection modulating frequency information mode is sent and returned using dual processors is:
(1) two CPU:CPU1 (first processor of transmitter) and CPU2 (second processor of transmitter) will be received
Vibration control instruction be separately sent in FPGA.
(2) FPGA is respectively modulated two cpu instructions, two modulating frequency information of generation.
(3) FPGA respectively counts two modulating frequency information, obtains two frequency counting information: by independent
Clock counts period and the record of low frequency and carrier frequency respectively.
(4) two frequency counting information are issued into one of CPU, that is, returns inspection processor, such as CPU2, CPU2 is to receiving
Count information be compared.
There is SPI synchronizing channel between dual processors, can efficiently realize that the clock between dual processors is synchronous and data are transmitted.
It when dual processors count information is less consistent, is recalculated using the newest signal that receives, continuous several times (such as 3
It is secondary) it is less consistent when report mistake.When count information comparison result is consistent, control modulated signal is sent to filter and amplification electricity
Road.In the present embodiment, amplifying circuit will also be converted into three road signals, i.e., one by signal all the way while realizing signal amplification
Input circuit corresponds to three output loops.
By carrying out back inspection after instructing frequency modulation to dual processors, increase system reliability.
In the present embodiment, the FPGA of use is the EP1C6Q240C8 produced by ALTRA company, has 5980 logics
Unit (LE)；Amount to 92160 bit ram spaces；185 available I/O.Signal amplification circuit, Ke Yishi are used inside transmitter
The amplification output of existing modulated signal.Transmitter includes two-way CAN communication circuit, communicates with control centre, wants respectively according to agreement
It asks and is unpacked and organized packet, CAN bus has electrical isolation.
Receiver functional structure is as shown in figure 5, compare framework using dual processors, by two sets of codings realizations to reception data
Analysis processing, the judgement whether being broken obtained with the difference of normal condition comparison.And two frameworks are taken by two, are compared
Critical data, comprising: the critical data for needing to compare includes: collected low frequency, carrier frequency and amplitude are averaged afterwards effectively
Be worth, judge broken rail result, timestamp information etc., obtain final output.Use this framework that can subtract with safeguards system reliability
Report risk by mistake less.Illustratively, the detailed process for receiving data is analyzed using dual processors are as follows:
(1) ADC1 acquires vibration signal and carries out analog high-pass filtering to it, is subsequently sent to CPU1 (the first of receiver
Processor)；ADC2 acquisition vibration signal simultaneously carries out analog high-pass filtering to it, is subsequently sent to CPU2 (at the second of receiver
Manage device).
(2) digital filtering, the flat equalization process of window are carried out to the vibration signal received respectively in CPU1, CPU2, obtained
Critical data, and crack detection calculating is carried out according to critical data.Dual processors are using different digital filtering, crack detection algorithm
It realizes, calculates vibration signal on time domain, frequency domain and the deviation of normal condition vibration signal, obtain judging result.
(3) critical data in CPU1 and judging result are sent to CPU2 by serial communication between dual processors, are sentenced by CPU2
It is disconnected that whether information is consistent.Judging result is exported when information is consistent.It when information is inconsistent, recalculates, continuous several times information is different
When cause, output error report information.
The interaction of interactive information peripheral circuit, Read-write Catrol, more afterwards control output action order etc. between CPLD and CPU.
CPLD is for realizing extension I/O interface.There is control signal wire between CPLD and ADC.
Its processor uses TMS320 C32, which has 32 high performance float-point CPU, and dominant frequency reaches 150MHZ, place
The high speed processing ability of reason device improves the real-time of task.Track switch A rail, B rail, tri- Lu Zhen of heart Gui Shang are received in receiver respectively
The acquisition signal of dynamic sensor.Digital quantity after ADC (analog-digital converter) conversion is filtered, window is average, Zhi Houying
It is calculated in its time domain and frequency domain with crack detection algorithm and the deviation of normal condition.Therefore all for hardware computing resource and speed
It has higher requirements.The CPLD chip CPLD-XC95216-10PQ160 of a Xilinx, low-cost and high-performance may be implemented
Extension I/O port function is realized in the choosing of the interaction piece of CPU and peripheral circuit, read-write operation.CAN communication is using PHILIPS company
SJA1000 controller realizes the data interaction between control centre.AD acquisition uses AD7865 chip, and highest has 4 Channel Synchronous
Sample 14 bit A/D converters.
The track fracture inspection method and system of the embodiment of the present invention, can will all the way transmitter output signal to simultaneously it is more
Vibrating sensor is received on the rail of road, and all accesses receiver all the way for signal is received, and it is disconnected that rail is run in this receiver
Detection algorithm is split, comes on real-time detection multichannel rail whether to be broken, saves deployment cost, switch structure can be carried out complete
Face detection.
Using the cabinet-type mounting means of back plate type design and spare interface, expansible, good compatibility can be according to user
Demand, using different communication modules, power supply module.
Since vibration machine is different with the frequency optimum traffic of vibrating sensor, transmitter is required in working frequency humorous
Vibration point attachment, receiver require bigger sampling bandwidth, after arranged apart, the sensing material of vibration machine and vibrating sensor
Material is different.According to finite element simulation and experimental result, the frequency laser propagation effect and good, the transmitter to the performance of crackle of 20kHz
With regard to selective resonance frequency 20K or so vibration machine, the output energy of 20k frequency attachment can be higher than other frequencies very
It is more.For receiving the sensor of vibration, need bandwidth bigger, selection can receive the signal in the section 2k to 60k, be conducive to do
Algorithm obtains the signal of different orders when calculating., hence it is evident that efficiency of transmission is improved, the volume for receiving vibrating sensor is reduced, is adapted to
Site requirement.
Receiver uses " two take two " frame design, calculates acquisition data difference algorithm, obtains judging result.It needs later
Final result is obtained after dual processors compare critical data and result.System wrong report number is substantially reduced, robustness is increased.
Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should manage
Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (13)
1. a kind of track is broken inspection method characterized by comprising
Control transmitter transmits the electrical signal to N number of vibration machine, and wherein N is the integer greater than 0；Control the vibration machine
The electric signal is converted into vibration signal, and passes to rail；
It controls M vibrating sensor corresponding with the vibration machine and the vibration signal received is converted into electric signal
And receiver is sent by the electric signal, wherein M is the integer greater than 0；
Judge whether track is broken according to the electric signal.
2. judging whether track breaks according to the electric signal the method according to claim 1, wherein described
It splits and includes:
It controls the receiver and judges whether track is broken according to the electric signal received, and judging result is sent
To control centre；
And/or
It controls the receiver and sends the control centre for the electric signal received, and as control centre according to
Electric signal judges whether track is broken.
3. method according to claim 1 or 2, which is characterized in that the control transmitter transmits the electrical signal to N number of vibration
Generator includes:
Control transmitter will be converted to the road N amplification electric signal by electric signal all the way by discharge circuit, be sent to N number of vibration and occur
Device, wherein N is the integer greater than 1.
4. method according to claim 1 or 2, which is characterized in that described to judge whether track is sent out according to the electric signal
Life is broken
It controls and receives device and received multiple signals is handled using polling mode, individually handle in each polling cycle and believe all the way
Number.
5. the method according to claim 1, wherein including:
N number of vibration machine is arranged on track tongue and/or heart rail, wherein N is the integer greater than 1.
6. according to the method described in claim 5, it is characterized in that,
Described N number of vibration machine is arranged on track tongue and/or heart rail includes: that the first vibration machine is arranged
On the first tongue of rail switch；Second vibration machine is arranged on the second tongue of the rail switch；
The receiver receives the first electric signal of the first vibrating sensor corresponding with the first vibration machine；
The receiver receives the second electric signal of the first vibrating sensor corresponding with the second vibration machine；
It is described judge according to the electric signal track whether occur fracture include: by the first electric signal and the second electric signal respectively with
Corresponding normal recordings compare, and the abnormal signal caused by environmental factor checks.
7. according to the method described in claim 2, it is characterized in that, the electric signal that the control receiver receives
Judge whether track is broken, comprising:
The receiver is set as dual processors, and the dual processors are respectively adopted different algorithms and carry out to the electric signal received
Analysis processing；
The analysis processing includes comparing the difference of the electric signal and track normal condition, judges whether track is broken.
8. a kind of track is broken inspection system characterized by comprising
Control centre, at least one transmitter, at least one receiver, at least one vibration machine, at least one vibration pass
Sensor；
The control centre is for sending vibration control instruction to the transmitter；
The transmitter is used to be converted to electric signal according to vibration control instruction and is sent at least one described vibration generation
Device；
The vibration machine is used to the electric signal being converted to vibration signal, and passes to rail；
The vibrating sensor is sent after the vibration signal received is converted to electric signal for receiving the vibration signal
To the receiver；
The receiver is used to receive the electric signal of at least one vibrating sensor；
The receiver is also used to electric signal based on the received and judges whether track is broken, and sends institute for judging result
State control centre；And/or the control centre is sent by the electric signal received, as the control centre according to
Electric signal judges whether track is broken.
9. system according to claim 8, which is characterized in that
The system contains at least two vibration machine, and the vibration machine is arranged on two tongues of track or arranges
On the tongue and heart rail of track；
At least two vibration machine is connect with the same transmitter.
10. system according to claim 8, which is characterized in that
The system contains at least two vibrating sensor, and the vibration machine is arranged on two tongues of track or arranges
On the tongue and heart rail of track；
At least two vibrating sensor is connect with the same receiver.
11. the system according to any one of claim 8-10, which is characterized in that
The transmitter includes first processor, second processor, field programmable gate array, the first processor and described
Second processor is connected with the field programmable gate array；
The first processor and the second processor are used to send the field-programmable for vibration control instruction
Gate array；
The field programmable gate array is used for the vibration control instruction from first processor and second processor
It is modulated, generates two groups of modulating frequency information；
The field programmable gate array is also used to count described two modulating frequency information, generates two groups of counting letters
Breath, and inspection processor is sent back by two groups of count informations, described time inspection processor is the first processor or described
Second processor；
Described time inspection processor is compared judgement to two groups of count informations.
12. the system according to any one of claim 8-10, which is characterized in that
The receiver includes first processor and second processor；
The first processor and second processor for receiving vibration signal respectively；
The first processor and second processor are respectively used to handle received vibration signal, obtain respective calculating
Use critical data；
The first processor and second processor are respectively used to carry out crack detection calculating according to the respective critical data,
The first processor and second processor execute the crack detection using different algorithms and calculate, and obtain judging result；
The first processor is used to send the second processor for its described critical data and judging result；Described second
Processor is for the critical data and judging result of the first processor and second processor to be compared.
13. the system according to any one of claim 8-10, which is characterized in that
The receiver further includes backboard；
The backboard includes power supply module interface and communication module interface；
The power supply module interface includes power supply power supply interface and solar powered interface；
The communication module interface includes CAN, 485, USB interface.
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| CN201910538920.1A CN110329308B (en) | 2019-06-20 | 2019-06-20 | Track fracture inspection method and system |
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| CN201910538920.1A CN110329308B (en) | 2019-06-20 | 2019-06-20 | Track fracture inspection method and system |
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| CN115782956A (en) * | 2023-01-29 | 2023-03-14 | 北京全路通信信号研究设计院集团有限公司 | Steel rail fault monitoring method and device |
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