CN110207810A - Axle box vibration detecting system - Google Patents
Axle box vibration detecting system Download PDFInfo
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- CN110207810A CN110207810A CN201810167277.1A CN201810167277A CN110207810A CN 110207810 A CN110207810 A CN 110207810A CN 201810167277 A CN201810167277 A CN 201810167277A CN 110207810 A CN110207810 A CN 110207810A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 16
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- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000004364 calculation method Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 abstract description 2
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- 238000013461 design Methods 0.000 description 9
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- 238000002955 isolation Methods 0.000 description 6
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- 239000003990 capacitor Substances 0.000 description 1
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- 238000013500 data storage Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- Electric Propulsion And Braking For Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention belongs to rail vehicle detection technique fields, disclose a kind of axle box vibration detecting system, including power module, for powering to each component；Data processing module is connected with power module, for carrying out calculation process to monitoring data；Sensor module obtains measured signal for monitoring axle box；Acquisition module is connected with sensor module and data processing module respectively, carries out prime processing for the measured signal to sensor module；Communication module is connected with data processing module, for communication with the outside.A kind of axle box vibration detecting system provided by the present invention, by the way that sensor module is vertical and oscillation crosswise, study axle box derailing algorithm, judgment criteria, pass through Data Analysis Services, realize the on-line checking of derailing, it notifies at once before and after train discovery derailing to train control system, pre-alarm is proposed, to guarantee the safety and reliability of train operation.
Description
Technical field
The invention belongs to rail vehicle detection technique fields, and in particular to a kind of axle box vibration detecting system.
Background technique
In field of track traffic, China opened high-speed rail from 2008 as one of the main high-speed rail industry in world state, developed
It is very fast, but many technologies are still immature, it is still at an early stage.In track Vehicle Rotating Parts vehicle-mounted monitoring system side
Face, domestic high-speed EMUs are only being rotated there is no the system of perfect axle box Vibration Condition Monitoring and bearing failure diagnosis
In terms of part fault diagnosis, there is the EEF bogie malfunction monitoring in some applications, such as locomotive 6A system on domestic locomotive and subway
Subsystem.
China express railway net is different from Europe and Japan High-speed Railway, and road network scale is big, and covering is vast in territory, geographical,
Geology, weather conditions are complicated and changeable.Compared to subway and common railway, the operating condition of each component of high-speed rail is more severe, operation speed
Du Genggao has already appeared a lot of bullet train revolving part event of failure at present, and railway parent company and major main engine plants are all
Installation demand clearly is proposed to the system.Carrying out revolving part fault diagnosis simultaneously, the monitoring derailed prevents from arranging
The generation of vehicle derailment accident.
After decades of development, five speed raisings of china railway, technically to the moral of introduction, day, method high-speed EMUs
It is digested and assimilated, then stage of high-speed rail industry entry autonomous innovation in recent years.Domestic more colleges and universities, Research Centers are high in one's power
The fast mating enterprise of Train Parts displays one's respective advantages, scientific and technological resources and Industrial Resources, shares out the work and helps one another, and breaks through bullet train and closes
Key technology, it is intended to construct efficient High-sped Trains innovation mechanism, the innovation of China express railway Development Technology is made to enter one
A new stage.
There is also following defects for existing high-speed rail industry:
1, on axle box vibration detection device real-time monitoring high-speed train bogie axle box state, it is ensured that train smooth safety
Operation.The working environment of the product is extremely complex, interferes vulnerable to working site electromagnetism, electric field, harmonic wave etc., while may also be by
The interference of other equipment on to train.
2, requirement of the safe operation of bullet train to fault identification is very high, and existing resonance demodulation technique can only carry out firmly
Part filtering, method is more single, and it is completely reliable, accurate not can guarantee diagnostic result.
3, in terms of data acquisition, since the rotary parts such as EMU axle box, bearing are more, failure species survey is various each
Sample, therefore higher requirement, existing compound sensor technology are suffered to sensor material, structure, function and installation site
Meet and requires more difficulty.
Summary of the invention
In order to solve the above problems existing in the present technology, it is an object of that present invention to provide a kind of axle box vibration detection systems
System.
The technical scheme adopted by the invention is as follows:
A kind of axle box vibration detecting system, including
Power module, for powering to each component；
Data processing module is connected with power module, for carrying out calculation process to monitoring data；
Sensor module obtains measured signal for monitoring axle box；
Acquisition module is connected with sensor module and data processing module respectively, for the tested letter to sensor module
Number carry out prime processing；
Communication module is connected with data processing module, for communication with the outside.
Preferably, the power module includes sequentially connected power input, input filter protection circuit, isolation list
Member, output filter protective circuit and power output end, power input are connected with motor-car DC power supply, power output end and data
Processing module is connected.
Preferably, counnter attack and fuse protection circuit and surge impact protection circuit are equipped at the power input,
TVS protection circuit and filter circuit are equipped in power output end.
Preferably, the communication module includes as the ARM controller of control centre, for communicating with data processing board
CAN bus and RS485 bus, for obtaining MVB bus order and transmitting the MVB unit of alert data.
Preferably, the axle box vibration detecting system includes the I/O module being connected with data processing module, and I/O module includes
Digital input end and digital output end.
Preferably, the axle box vibration detecting system includes the clock module being connected with data processing module and storage mould
Block, and the host computer with communication module communication connection.
Preferably, the sensor module include be mounted on axle box it is vertical on the vibration of three directions, vertical impact and temperature
Compound sensor and the vibrating sensor being mounted in axle box transverse direction.
Preferably, the acquisition module includes the LC filter circuit being sequentially connected, TVS diode and multichannel isolated location.
The invention has the benefit that
1, a kind of axle box vibration detecting system provided by the present invention is ground by the way that sensor module is vertical and oscillation crosswise
Study carefully axle box derailing algorithm, judgment criteria and realize the on-line checking of derailing by Data Analysis Services, before train discovery derailing
After notify at once to train control system, pre-alarm is proposed, to guarantee the safety and reliability of train operation.
2, supply voltage needed for train 110V power supply is converted to system by power module, and the function of needs is provided for system
Rate；Power input is that prime plays the role of current-limiting protection through self-recovery fuse, is met to the safe capacitor of Y, X and varistor
The design of safety standard, while common mode, differential mode etc. from power supply can be filtered out and interfered, then protected through anti-reverse diode and input filter
Protection circuit provides clean, stable DC source, then required DC power supply is provided for system through isolated location.
3, system can be observed by the test to functional lamp, can tentatively check whether the operation of system is normal；By temperature
Original, characteristic and processing board vibration data import the storage that SD card realizes temperature, vibration.
Detailed description of the invention
Fig. 1 is the structural block diagram of axle box vibration detecting system of the present invention.
Fig. 2 is the structure chart of data processing module of the present invention.
Fig. 3 is the structure chart of power module of the present invention.
Fig. 4 is the structure chart of communication module of the present invention.
Fig. 5 is the flow chart of axle box vibration detecting system of the present invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment does further explaination to the present invention.
As shown in Figure 1, realizing bearing event the present embodiment provides a kind of 350KM standard EMU axle box vibration detecting system
Barrier is taken turns to the identification of polygon On-line Fault, including power module, data processing module, sensor module, acquisition module, communication
Module, I/O module, clock module, memory module and host computer.
Data processing module respectively with power module, acquisition module, communication module, I/O module, clock module and storage mould
Block is connected, and sensor module is connected with acquisition module, and host computer and communication module communicate to connect.
Power module is mainly used for powering to each component, as shown in figure 3, power module includes sequentially connected power input
End, input filter protection circuit, isolated location, output filter protective circuit and power output end, power input are straight with motor-car
Galvanic electricity source is connected, and power output end is connected with data processing module.
Power module uses the DC power supply on train to input as general supply, is converted out by DC TO DC isolated location
Power supply required for system.Counnter attack and fuse protection circuit and surge impact protection circuit (packet are equipped at power input
Include surge, EFT, ESD), TVS protection circuit and filter circuit are equipped in power output end.
Input filter protection circuit is made of fuse, varistor, diode, common mode inductance, is provided for isolation module
Completely, stable supply voltage.
Power module design is the input processing of the isolated power supply module URB1D24LMD-20WR3 of golden rising Yang, as follows by having
Advantage:
A. isolation voltage 2250VDC；
B. operating temperature range: -40 DEG C~+85 DEG C；
C. input undervoltage is protected, output short-circuit, overcurrent, overvoltage protection；
D. low ripple noise；
E. modularized design, it is convenient for safeguarding.
Sensor module obtains measured signal for monitoring axle box；Sensor module include be mounted on axle box it is vertical on three
Direction vibration, vertical impact and temperature complex sensor and the vibrating sensor being mounted in axle box transverse direction.The vibration of three directions,
The detection of axle box vertical vibration may be implemented in vertical impact and temperature complex sensor, and axle box transverse-vibration may be implemented in vibrating sensor
Dynamic detection.
Acquisition module is used for the measured signal to sensor module and carries out prime processing；Acquisition module includes being sequentially connected
LC filter circuit, TVS diode and multichannel isolated location.Acquisition module will be examined using the anti-aliasing low-pass filtering design of 30Hz
It surveys signal and interface circuit is mutually isolated, in order to avoid influencing each other, hardware design is using LC filter circuit and LTC3902, AD8032
Realization is isolated input, the output of signal and by received detection signal, useful signal needed for being converted into circuit.It is high-quality
Filtering, isolation circuit be designed as back end signal processing lay the foundation.
For sensor module by measured signal by signal intensity output current signal to acquisition module, this current signal is 4-
The output signal of 20mA, the signal are one of design standard the most commonly used in current industrial design, are had very strong anti-interference
Ability can adapt to the industry spot of serious interference.After acquisition module receives this signal, prime filtering processing, filter will be carried out
Wave circuit uses LC filter circuit design, filters out the interference such as live electromagnetism, electric field, harmonic wave, good in combination with TVS diode
It inhibits the strong voltage from environment to interfere, and has effectively contained common mode, DM EMI, and effectively input useful signal
To rear class conversion process, the precision and accuracy of input signal are greatly improved；Clean voltage is exported by T1630P conversion
Signal.T1630P be multichannel isolation module, effectively input a signal into, signal output, power input, power supply output progress every
From, isolation voltage up to 2500VDC, the post processing electric circuit that is effectively protected.
Data processing module uses STM32F407 chip for the operation platform of software systems, completes to monitoring data core
Calculation process, logical construction refer to as shown in Fig. 2, it is integrated with RS232, SD card, CAN bus, RS485 bus, LAN, USB
Function, can be to monitoring data real-time monitoring, diagnosis, alarm and storage.
Data processing module is carried out using the collected vibration data of sensor module in system operation, combination algorithm
Analytical calculation is judged by the comparison to end value and fault value, to reach the function of pre-alarm failure.Utilize sensor die
The collected temperature data of block, combination algorithm carry out analytical calculation, are judged by the comparison to end value and fault value, to reach
To the function of pre-alarm failure.
Data after data processing module operation are transferred to train monitoring room by communication module.As shown in figure 4, communication module
Including ARM controller, the CAN bus for being communicated with data processing board and RS485 bus, for obtaining MVB bus order
And transmit the MVB unit of alert data.
ARM controller is using STM32F103 as the control centre of communication card；CAN bus and RS485 bus, two kinds
Communication mode, realization are in communication with each other, data transmission；MVB unit realizes the upload to data.
I/O module is communicated by internal bus and processing with communication card, transmission speed signal, axle box abnormal signal,
Plant failure signal etc..I O board card includes digital input end (DI) and digital output end (DO), in processing and communication card and its
Play a part of interface (relay, photo-coupler) between his equipment.
Memory module is based on SD card, creates data storage folders, and by system operation, relevant temperature, vibration
Dynamic and pre-alarm data are respectively stored into each file of SD card, realize store function.
The system uses RT-thread, MDK5 real time operating system based on STM32F4 series monolithic, system operation
Five big threads are shared in the process, respectively storage, acceleration diagnosis, temperature diagnostic, self-test, communication.Entire software kernels algorithm
It is realized in diagnosis thread, the data flow of bearing processing and derailing processing is from collecting intuitive display and analysis process such as
Fig. 5.
Self-checking function, had both completed the detection of SD card system carry, and system time is obtained from data processing module, utilized
System time creates data file, meanwhile, configuration data is read from flash, completes the self-test starting of system.
CAN communication function had both initialized CAN communication system, waits and sends and receives data by bus.
The innovative point of above-mentioned axle box vibration detecting system is:
1. having reliable hardware condition, stable power module guarantees effectively transmission power；
2. multiple small with resonance and demodulation, even numbers using vibration, impact, temperature complex sensor and two temperature Redundancy Design
Two kinds of fault identification algorithms of wave are mutually authenticated, and reliability can be improved；
3. having bearing failure diagnosis, derailing detection, polygon detecting, track foreign bodies detection, derailing tendency judgement five greatly
Function.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific embodiment should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (8)
1. a kind of axle box vibration detecting system, it is characterised in that: including
Power module, for powering to each component；
Data processing module is connected with power module, for carrying out calculation process to monitoring data；
Sensor module obtains measured signal for monitoring axle box；
Acquisition module is connected with sensor module and data processing module respectively, for the measured signal to sensor module into
The processing of row prime；
Communication module is connected with data processing module, for communication with the outside.
2. axle box vibration detecting system according to claim 1, it is characterised in that: the power module includes being sequentially connected with
Power input, input filter protection circuit, isolated location, output filter protective circuit and power output end, power input
End is connected with motor-car DC power supply, and power output end is connected with data processing module.
3. axle box vibration detecting system according to claim 2, it is characterised in that: be equipped with counnter attack at the power input
Circuit and surge impact protection circuit are protected with fuse, is equipped with TVS protection circuit and filter circuit in power output end.
4. axle box vibration detecting system according to claim 1, it is characterised in that: the communication module includes as control
The ARM controller at center, the CAN bus for communicating with data processing board and RS485 bus are ordered for obtaining MVB bus
Enable and transmit the MVB unit of alert data.
5. axle box vibration detecting system according to claim 1 to 4, it is characterised in that: axle box vibration detection system
System includes the I/O module being connected with data processing module, and I/O module includes digital input end and digital output end.
6. axle box vibration detecting system according to claim 1 to 4, it is characterised in that: axle box vibration detection system
System includes the clock module being connected with data processing module and memory module, and the host computer with communication module communication connection.
7. axle box vibration detecting system according to claim 1 to 4, it is characterised in that: the sensor module includes
Be mounted on axle box it is vertical on the vibration of three directions, vertical impact and temperature complex sensor and the vibration being mounted in axle box transverse direction
Dynamic sensor.
8. axle box vibration detecting system according to claim 1 to 4, it is characterised in that: the acquisition module includes suitable
Secondary connected LC filter circuit, TVS diode and multichannel isolated location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810167277.1A CN110207810B (en) | 2018-02-28 | 2018-02-28 | Axle box vibration detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810167277.1A CN110207810B (en) | 2018-02-28 | 2018-02-28 | Axle box vibration detection system |
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| Publication Number | Publication Date |
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| CN110207810A true CN110207810A (en) | 2019-09-06 |
| CN110207810B CN110207810B (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810167277.1A Active CN110207810B (en) | 2018-02-28 | 2018-02-28 | Axle box vibration detection system |
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Cited By (2)
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| CN110887523A (en) * | 2019-11-20 | 2020-03-17 | 江苏理工学院 | Rail vehicle axle box monitoring system based on LabVIEW |
| CN112113655A (en) * | 2020-09-21 | 2020-12-22 | 西南交通大学 | Vibration signal detection device and health assessment method for subway track fastener |
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| CN110207810B (en) | 2021-11-30 |
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Denomination of invention: Axle box vibration detection system Granted publication date: 20211130 Pledgee: China Construction Bank Corporation Changzhou Huimin sub branch Pledgor: CHANGZHOU LUHANG RAILWAY TRANSPORTATION TECHNOLOGY CO.,LTD. Registration number: Y2024980017307 |
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