CN108333450A - 350KM standards EMU unstability detection method and device - Google Patents
350KM standards EMU unstability detection method and device Download PDFInfo
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Abstract
The invention discloses 350KM standards EMU unstability detection method and device, which includes steady sensor, unstability sensor, stable data pretreatment unit, unstability data pre-processing unit, stable data processing unit, unstability data processing unit, communication unit and power supply unit；Steady sensor, stable data pretreatment unit and steady data processing unit communicate to connect successively；Unstability sensor, unstability data pre-processing unit and unstability data processing unit communicate to connect successively；The signal output end of stable data processing unit and unstability data processing unit is connected with the signal input part of communication unit.Judged by the steady operating mode of lateral, vertical and longitudinal three-dimensional and Cross deformation operating mode to train, and operating mode when generating pre- steady alarm and unstability, alarm is recorded accordingly, to facilitate data analysis.
Description
Technical field
The invention belongs to electrical detection technique fields, and in particular to 350KM standards EMU unstability detection method and device.
Background technology
With the fast development of bullet train, occur multiple train accident all over the world, increasingly payes attention to high speed both at home and abroad
The on-line monitoring of train, the on-line monitoring in portion especially out of shape.It is external that various sensings are housed on bogie with Japanese such as Europe
Whether device monitoring in real time and record vehicle there is the situation of change of hunting and other kinetic parameters in the process of running,
Wherein Britain AEA installs the vibration state of Sensor monitoring vehicle on car；French Banbadi just puts forth effort on research BCM-
System, i.e. " bogie condition monitoring system ".And at home, CRH2 EMUs are mounted with the bogie of Kawasaki, Japan heavy industry
Unstability detection device (BIDS), is monitored the vibrational state of bogie in train travelling process, and hunting unstability occurs
When device can send out alarm signal.
However, it still remains following defect：
1, initial data is not preserved or is preserved and is very few, inadequate to ground data analysis support.
Bullet train unstability detection device existing at present, although vehicle lateral acceleration can be acquired, handled and be judged
Signal, but it is bad to the analysis support of alarm and historical data, if the unstability detection device of Kawasaki Heavy Industries is only to unstability 1.6s
Data stored, some models do not record alert data even, as the unstability detecting system of Siemens is integrated in
In brak control unit BCU, data waveform is not stored.It is mingled in the transverse acceleration signal of bullet train uncertain
Interference and external drive, warning message judged according only to single vehicles monitoring data, this virtually improves system again
Rate of false alarm.Simultaneously as without data storage function, and train real time data and ground data library can not be established, thus cannot
The across comparison of instability status, loses the directive function overhauled to ground between offer rail cars.Therefore existing at present
Hardware platform cannot be satisfied the data analysis requirements to warning message.
2, bogie unstability detection device monitors train bogie state in real time, and complexity will be in after coming into operation
Under environment, it is vulnerable to the interference such as electromagnetism, electric field and harmonic wave, while interference may be generated to other equipment on train.
Invention content
In order to solve the above problem of the existing technology, present invention aims at provide 350KM standard EMU unstabilitys
Detection method and device are sentenced by the steady operating mode of lateral, vertical and longitudinal three-dimensional and Cross deformation operating mode to train
It is disconnected, and operating mode when generating pre- steady alarm and unstability, alarm is recorded accordingly, to facilitate data analysis.
The technical solution adopted in the present invention is：350KM standard EMU unstability detection devices, including steady sensor,
Unstability sensor, stable data pretreatment unit, unstability data pre-processing unit, stable data processing unit, at unstability data
Manage unit, communication unit and power supply unit；The signal of the signal output end and stable data pretreatment unit of steady sensor is defeated
Enter end to be connected, the signal output end of stable data pretreatment unit is connected with the signal input part of stable data processing unit；It loses
The signal output end of steady sensor is connected with the signal input part of unstability data pre-processing unit, unstability data pre-processing unit
Signal output end is connected with the signal input part of unstability data processing unit；Stable data processing unit and unstability data processing list
The signal output end of member is connected with the signal input part of communication unit；The power output end of power supply unit respectively with stable data
The electricity of pretreatment unit, unstability data pre-processing unit, stable data processing unit, unstability data processing unit and communication unit
Source input terminal is connected.
Preferably, the stable data pretreatment unit includes the first LC filter modules communicated to connect successively, the first electricity
Circulate voltage module and the first amplification acquisition module；The signal output end of the steady sensor and the first LC filter modules
Signal input part is connected.
Preferably, when the stable data processing unit includes the first MCU processor and communicates with the first of connection
Clock module, the first data memory module and the first data download module；It is described first amplification acquisition module signal output end with
The signal input part of first MCU processor is connected.
Preferably, the unstability data pre-processing unit includes the 2nd LC filter modules communicated to connect successively, the second electricity
Circulate voltage module and the second amplification acquisition module；The signal output end of the unstability sensor and the 2nd LC filter modules
Signal input part is connected.
Preferably, when the unstability data processing unit includes the second MCU processor and communicates with the second of connection
Clock module, the second data memory module and the second data download module；It is described second amplification acquisition module signal output end with
The signal input part of second MCU processor is connected.
Preferably, the communication unit includes ARM communication controlers and the CAN communication that is connected with ARM communication controlers
Module, RS485 communication modules and MVB communication modules.
Preferably, the power supply unit include sequentially connected 110V power supplys, input filter protection circuit, DC TO DC every
From module and output filter protective circuit.
The invention also discloses a kind of detection methods based on above-mentioned 350KM standards EMU unstability detection device, including
Following steps：
A, hardware initialization, and self-test is carried out to steady sensor and unstability sensor, generate self-test file；
B, analog acceleration signal is acquired using steady sensor and unstability sensor；
C, stable data pretreatment unit, unstability data pre-processing unit are respectively to the stable data of acquisition and unstability data
It is pre-processed, and treated data are sent to stable data processing unit and unstability data processing unit is carried out algorithm and examined
It is disconnected, pre-, alert process is carried out according to diagnostic result；
D, communication unit receiving algorithm diagnostic result and pre-, alarming result, and send supreme position machine and show.
Preferably, further include following procedure after the step C：Characteristic and alert data are stored to flash,
USB reads and stores, and imports computer and unpacks software unpacking analysis；And characteristic and alert data storage are led to SD card
Enter computer and unpacks software unpacking analysis.
Beneficial effects of the present invention are：
(1) this system can be while acquiring, handling and judge vehicle lateral acceleration signal in real time, real-time storage feature
There is the initial data of 5min before early warning in data, storage unstability data processing unit, and store the appearance of stable data processing unit
To the initial data of alarm release this period after alarm；By both storage modes, it can effectively establish train and count in real time
According to this and ground data library, specific operating mode when bogie occurring snakelike unstability carry out Correlative data analysis with severity,
Effectively data support is provided for further probing into for the essential reason to the snakelike unstability of high-speed train bogie.
(2) stable data pretreatment unit and unstability data pre-processing unit are designed using good filtering, isolation circuit,
It lays the foundation for back end signal processing.
Steady sensor and unstability sensor respectively by the signal of acquisition by signal intensity output current signal to steadily
Data pre-processing unit and unstability data pre-processing unit, this current signal are the output signal of 4-20mA, are had very strong anti-
Interference performance can adapt to the industry spot of serious interference.Stable data pretreatment unit or unstability data pre-processing unit connect
After receiving signal, by carry out prime be filtered, filter circuit use LC filter circuit designs, filter out live electromagnetism, electric field and
The interference such as harmonic wave inhibit the strong voltage from environment to interfere well in combination with TVS diode, and have effectively contained altogether
Mould and DM EMI, and useful signal is effectively input to rear class conversion process, greatly improve the precision of input signal
With accuracy；Clean voltage signal is exported by T1630P conversions, T1630P is multichannel isolation module, effectively that signal is defeated
Enter, signal output, power input and power supply output be isolated, isolation voltage is effectively protected up to 2500V DC at rear class
Manage circuit.
(3) stabilization of hardware system is ensured in power supply unit using good Power Management Design.
Train 110V power supplys are converted to the supply voltage needed for hardware system by power module, and provide needs for system
Power；This device input stage is that prime plays the role of current-limiting protection, while can filter out being total to from power supply through self-recovery fuse
The interference such as mould and differential mode, then carried for DC to DC modules URB1D24LMD-20WR3 through anti-reverse diode and multi-stage filter circuit
For clean, stable DC source, then it is isolated into hardware system through URB1D24LMD-20WR3 and required DC power supply is provided.
(4) the method for the present invention is used, by characteristic and alert data storage to flash, and by characteristic and alarm
Data are stored to SD card, are saved the initial data compared with horn of plenty, can effectively be established train real time data and ground data
Library can analyze ground data and effectively be supported.
Description of the drawings
Fig. 1 is this system circuit structure diagram.
Fig. 2 is the front schematic view for detecting host.
Fig. 3 is this system flow chart of data processing figure.
Fig. 4 is the flow chart of data processing figure of calm disposing plate.
Fig. 5 is the flow chart of data processing figure of unstability processing board.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment does further explaination to the present invention.
Embodiment
As shown in Figure 1,350KM standard EMU unstability detection devices, including it is steady sensor, unstability sensor, steady
Data pre-processing unit, unstability data pre-processing unit, stable data processing unit, unstability data processing unit, communication unit
And power supply unit；The signal output end of steady sensor is connected with the signal input part of stable data pretreatment unit, steady number
The signal output end of Data preprocess unit is connected with the signal input part of stable data processing unit；The signal of unstability sensor is defeated
Outlet is connected with the signal input part of unstability data pre-processing unit, the signal output end and unstability of unstability data pre-processing unit
The signal input part of data processing unit is connected；The signal output end of stable data processing unit and unstability data processing unit is equal
It is connected with the signal input part of communication unit；The power output end of power supply unit respectively with stable data pretreatment unit, unstability
Data pre-processing unit, stable data processing unit, unstability data processing unit are connected with the power input of communication unit.
Wherein, the stable data pretreatment unit includes the first LC filter modules, the first electric current communicated to connect successively
Turn voltage module and the first amplification acquisition module；The letter of the signal output end and the first LC filter modules of the steady sensor
Number input terminal is connected.
The stable data processing unit include the first MCU processor and communicate with the first clock module of connection,
First data memory module and the first data download module；The signal output end and the first MCU of the first amplification acquisition module
The signal input part of processor is connected.
The unstability data pre-processing unit includes that the 2nd LC filter modules, the second electric current communicated to connect successively turns voltage
Module and the second amplification acquisition module；The signal output end of the unstability sensor and the signal of the 2nd LC filter modules input
End is connected.
The unstability data processing unit include the second MCU processor and communicate with the second clock module of connection,
Second data memory module and the second data download module；The signal output end and the 2nd MCU of the second amplification acquisition module
The signal input part of processor is connected.
The communication unit include ARM communication controlers and the CAN communication module being connected with ARM communication controlers,
RS485 communication modules and MVB communication modules.
The power supply unit includes sequentially connected 110V power supplys, input filter protection circuit, DC TO DC isolation modules
With output filter protective circuit.
Specifically, stable data pretreatment unit, unstability data pre-processing unit, stable data processing unit, unstability number
It is integrated according to processing unit, communication unit and power supply unit in detection host, as shown in Fig. 2, detection host is equipped with steadily
Processing board, steady interface board, unstability interface board, unstability processing board, communication board and power panel；Stable data pretreatment unit is integrated
In on steady interface board, unstability data pre-processing unit is integrated on unstability interface board, and stable data processing unit is integrated in flat
In steady processing board, unstability data processing unit is integrated in unstability processing board, and communication unit is integrated on communication board, power supply unit
It is integrated on power panel.
Wherein, power panel uses the DC power supply on train to be inputted as general supply, and converting out this by DC TO DC is
It unites the required power supply of all functional cards, core power module is using isolated power supply module URB1D24LMD-20WR3 to input
Be isolated with output power supply, and input terminal add counnter attack and fuse protect and surge impact protection circuit (including surge,
EFT, ESD), in output end plus TVS protection and filter circuit.
Input stage filtering, protection circuit are using fuse, varistor, diode, common mode inductance composition filtering protection electricity
Road provides supply voltage that is clean, stablizing for isolation module；The circuit design is the input processing of URB1D24LMD-20WR3,
It will have the following advantages：Isolation voltage 2500VDC；Operating temperature range：-40℃to+85℃；Under-voltage protection, output are realized in input
Realize short circuit, overcurrent and overvoltage protection；Low ripple noise；Modularized design, convenient for safeguarding.
Data transmission after calm disposing plate and unstability processing board operation to train is monitored room, ARM communication controls by communication board
Device processed is using STM32F103 as the main control centre of communication card；CAN communication module and RS485 communication modules, two kinds of communications
Mode realizes functional cards intercommunication, data transmission；MVB communication modules realize the upload to data.
Steady interface board and unstability interface board realize the measured signal to steady sensor and the acquisition of unstability sensor respectively
Prime processing is designed using the anti-aliasing low-pass filtering of 30Hz, and detection signal and interface circuit is mutually isolated, in order to avoid mutual shadow
It rings, hardware design realizes that input, output to signal are isolated and by received detection signal, are converted into electricity using T1630P
Useful signal needed for road.
Calm disposing plate and unstability processing board are all made of the operation platform that STM32F407 chips are software systems, completion pair
The processing of monitoring data main operational.It is integrated with RS232, SD card, CAN bus, RS485 buses, LAN and USB functions.It can logarithm
It monitors, diagnose, alarm and stores when factually.
Software systems are realized to the stationarity, impulsion value of car body in EMU operational process and the real-time inspection of unstability limit value
It surveys, to ensure safety and the comfort of train operation.The present apparatus is real using the RT-thread3.0 based on STM32F407 chips
When operating system, share four big threads, respectively self-test, diagnosis, storage and communication thread in system operation.Entire software
Core algorithm realizes that data flow is illustrated in fig. 3 shown below from intuitively display and analysis process is collected in diagnosing thread.
1, self-test thread explanation.
After system electrification is opened, self-test is carried out first.Most of relevant diagnosis of the system failure is complete in this course
At.Process of self-test can by calm disposing plate and unstability processing board to RAM, NAND Flash, E2Prom, SDcard, CAN,
The failures such as each channels such as USB, steady sensor and unstability sensor are detected judgement, and waiting for can be by device after self-test is completed
Breakdown judge result is shown by detecting the LED light correspondence of host panel, and sensor fault can be sent out by communication board
It gives the indoor unstability system detectio display interface (host computer) of driver and is visually indicated to driver.
2, real time algorithm diagnoses thread explanation.
Acceleration signal is transmitted to processing board by the acceleration transducer on bogie, by interface board, by analog signal
Be converted to digital signal.Among the diagnosis thread of unstability processing board and steady processing board, real time algorithm processing is carried out to signal.
It is responsible for calculating the features such as the longitudinal impulse, lateral stability index and vertical riding index of car body ginseng by calm disposing plate
Number；Unstability processing board calculates the characteristic parameters such as motor-car acceleration peak value and trailer acceleration peak value.And according to respective
In advance, alarming logic carries out pre-, alarm decision processing to obtained characteristic parameter, and by fructufy when shows.Calm disposing
The flow chart of data processing of plate such as Fig. 4, flow chart of data processing such as Fig. 5 of unstability processing board.
In advance, warning message can be shown by following two modes：
(1) the LED light correspondence above the panel of calm disposing plate and the panel of unstability processing board is shown.
(2) communication board is sent to by CAN communication module by calm disposing plate and unstability processing board, then is passed through by communication board
MVB communication modules are sent to the indoor unstability system detectio display interface (host computer) of driver and are visually indicated to driver.
Diagnostic result also can further be divided other than directly being observed in real time for client by being done after USB interface reading file
Analysis is handled.
3, thread explanation is stored.
In gatherer process, data are written in real time in the NAND flash storages of STM32F407 chips.According to per treatment
Data volume and every piece of NAND Flash memory space, be calculated every piece storage data volume, to facilitate the reading of data
It takes.According to the format set by collected data carry out mould number conversion after in order storage arrive NAND flash storages
Each piece of every page among.
USB insertion system interfaces before system electrification are completed to start to read and store after self-test in system electrification
Data in NAND Flash, and after the data in storing all NAND Flash, the data that will be stored in NAND Flash
It removes.It USB can store calm disposing plate and unstability processing board is calculated characteristic and stores after generating pre-, warning message
Initial data before alarm.Above two data can be respectively stored in different .dat files.The storage of two kinds of files is patrolled
It collects as follows：
(1) file of storage characteristic can add new head after powering on every time, and new text is just will produce after unpacking
Part；
(2) pre-, alert data equally adds new head after powering on every time, and after each pre-, alarm, pre-,
Alert data can store all initial data after terminating to preceding primary pre-, alarm before this.
In advance, alert data can read the storage USB of characteristic when reading data from NAND Flash, often read one
The data of page just store the data of one page.During reading data, has corresponding indicator light and flickered in data interaction.
When SDcard is inserted in calm disposing plate or unstability processing board, data can not only store NAND Flash, meeting
It is stored to SDcard when data volume reaches preset value every time.
4, communication thread explanation.
Communications category is broadly divided into CAN and MVB：
(1) CAN communication is as the internal system means of communication, for realizing calm disposing plate, unstability processing board and communication
Data transmission between plate three.
(2) communication board realizes the communication between host computer, by device fault information, pre-alarm information by MVB agreements
Etc. being transferred to host computer.When 1 (acquiescence) port of MVB is broken down, system automatically switches to 2 (spare) of MVB
Port, to ensure that the communication between slave computer and host computer is normal.
The invention also discloses a kind of detection methods based on above-mentioned 350KM standards EMU unstability detection device, including
Following steps：
A, hardware initialization, and self-test is carried out to steady sensor and unstability sensor, generate self-test file；
B, analog acceleration signal is acquired using steady sensor and unstability sensor；
C, stable data pretreatment unit, unstability data pre-processing unit are respectively to the stable data of acquisition and unstability data
It is pre-processed, and treated data are sent to stable data processing unit and unstability data processing unit is carried out algorithm and examined
It is disconnected, pre-, alert process is carried out according to diagnostic result；
D, communication unit receiving algorithm diagnostic result and pre-, alarming result, and send supreme position machine and show.
Specifically, further include following procedure after the step C：Characteristic and alert data are stored to flash,
USB reads and stores, and imports computer and unpacks software unpacking analysis；And characteristic and alert data storage are led to SD card
Enter computer and unpacks software unpacking analysis.
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 implementation mode 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 (9)
1.350KM standard EMU unstability detection devices, it is characterised in that：Including steady sensor, unstability sensor, steady number
Data preprocess unit, unstability data pre-processing unit, stable data processing unit, unstability data processing unit, communication unit and
Power supply unit；The signal output end of steady sensor is connected with the signal input part of stable data pretreatment unit, stable data
The signal output end of pretreatment unit is connected with the signal input part of stable data processing unit；The signal of unstability sensor exports
End is connected with the signal input part of unstability data pre-processing unit, signal output end and the unstability number of unstability data pre-processing unit
It is connected according to the signal input part of processing unit；The signal output end of stable data processing unit and unstability data processing unit with
The signal input part of communication unit is connected；The power output end of power supply unit respectively with stable data pretreatment unit, unstability number
Data preprocess unit, stable data processing unit, unstability data processing unit are connected with the power input of communication unit.
2. 350KM standards EMU unstability detection device according to claim 1, it is characterised in that：The stable data
Pretreatment unit includes that the first LC filter modules, the first electric current communicated to connect successively turns voltage module and the first amplification acquisition
Module；The signal output end of the steady sensor is connected with the signal input part of the first LC filter modules.
3. 350KM standards EMU unstability detection device according to claim 2, it is characterised in that：The stable data
Processing unit includes the first MCU processor and communicates with the first clock module of connection, the first data memory module and
One data download module；The signal input part phase of the signal output end and the first MCU processor of the first amplification acquisition module
Even.
4. 350KM standards EMU unstability detection device according to claim 1, it is characterised in that：The unstability data
Pretreatment unit includes that the 2nd LC filter modules, the second electric current communicated to connect successively turns voltage module and the second amplification acquisition
Module；The signal output end of the unstability sensor is connected with the signal input part of the 2nd LC filter modules.
5. 350KM standards EMU unstability detection device according to claim 4, it is characterised in that：The unstability data
Processing unit includes the second MCU processor and communicates with the second clock module of connection, the second data memory module and
Two data download modules；The signal input part phase of the signal output end and the second MCU processor of the second amplification acquisition module
Even.
6. 350KM standards EMU unstability detection device according to claim 1, it is characterised in that：The communication unit
Including the ARM communication controlers and CAN communication module being connected with ARM communication controlers, RS485 communication modules and MVB communications
Module.
7. 350KM standards EMU unstability detection device according to claim 1, it is characterised in that：The power supply unit
Including sequentially connected 110V power supplys, input filter protection circuit, DC TO DC isolation modules and output filter protective circuit.
8. a kind of detection method based on claim 1-7 any one of them 350KM standard EMU unstability detection devices,
It is characterized in that, includes the following steps：
A, hardware initialization, and self-test is carried out to steady sensor and unstability sensor, generate self-test file；
B, analog acceleration signal is acquired using steady sensor and unstability sensor；
C, stable data pretreatment unit, unstability data pre-processing unit respectively carry out the stable data of acquisition and unstability data
Pretreatment, and data are sent to stable data processing unit and the progress algorithm diagnosis of unstability data processing unit by treated,
Pre-, alert process is carried out according to diagnostic result；
D, communication unit receiving algorithm diagnostic result and pre-, alarming result, and send supreme position machine and show.
9. 350KM standards EMU unstability detection method according to claim 8, which is characterized in that after the step C
It further include following procedure：Characteristic and alert data storage are read and stored to flash, USB, computer is imported and unpacks software
Unpack analysis；Also, characteristic and alert data storage are imported computer and unpack software unpacking analysis to SD card.
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| CN201810141224.2A CN108333450B (en) | 2018-02-11 | 2018-02-11 | 350KM standard motor train unit instability detection method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017830A (en) * | 2018-08-10 | 2018-12-18 | 唐智科技湖南发展有限公司 | A kind of monitoring method of rail vehicle, device and equipment |
| CN110320058A (en) * | 2019-08-12 | 2019-10-11 | 成都西交智众科技有限公司 | A kind of portable vehicle running stability analyzer |
| CN111516711A (en) * | 2019-02-02 | 2020-08-11 | 株洲中车时代电气股份有限公司 | Safety monitoring method and device for running gear of motor train unit |
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Denomination of invention: Method and device for detecting instability of 350KM standard high-speed trains Granted publication date: 20211029 Pledgee: China Construction Bank Corporation Changzhou Huimin sub branch Pledgor: CHANGZHOU LUHANG RAILWAY TRANSPORTATION TECHNOLOGY CO.,LTD. Registration number: Y2024980017307 |