CN102706568A - Portable train vibration tester - Google Patents

Portable train vibration tester Download PDF

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Publication number
CN102706568A
CN102706568A CN2012101587540A CN201210158754A CN102706568A CN 102706568 A CN102706568 A CN 102706568A CN 2012101587540 A CN2012101587540 A CN 2012101587540A CN 201210158754 A CN201210158754 A CN 201210158754A CN 102706568 A CN102706568 A CN 102706568A
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CN
China
Prior art keywords
module
train
data
tester
acceleration
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CN2012101587540A
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Chinese (zh)
Inventor
张兵
林建辉
宁静
陈景琪
伍川辉
苏燕辰
陈春俊
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西南交通大学
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Application filed by 西南交通大学 filed Critical 西南交通大学
Priority to CN2012101587540A priority Critical patent/CN102706568A/en
Publication of CN102706568A publication Critical patent/CN102706568A/en

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Abstract

The invention discloses a portable train vibration tester. The portable train vibration tester is used for measuring the vibration of a train body and under-train key equipment of the train, calculating the stability and comfort level indexes on line, displaying, storing, and wirelessly transmitting the data. The portable train vibration tester is composed of a field programmable gate array (FPGA), an acceleration module, a frequency module, a global positioning system (GPS) module, a display module, a keyboard module, a clock module, a random-access memory (RAM) module, a data storage module, a wireless network module, a program storage module, and the like. By structuring an independent floating point calculating unit (FPU) in the FPGA, the instantaneity of calculating the stability and comfort level indexes is guaranteed. As the calculating and controlling center of the tester, the FPGA can confirm the vibration degree, the position and speed of the train when the vibration happens at the present time by synchronizing the acceleration module, the GPS module, the frequency module and the clock module; by using the display module, the data storing module and the wireless network module, the tested data and the calculated result can be displayed, stored and wirelessly transmitted in real time.

Description

The Portable Train vibration measurement instrument
Technical field
The present invention relates to train electrical field, be specifically related to a kind of Portable Train vibration measurement instrument.
Background technology
Railway is the main artery of communications and transportation, and development and national economy is played crucial effect.The development of high-speed railway is a field technology revolution of railway passenger forwarding business, is representing the developing direction of railway transport of passengers.So far carried out six extensive speed-raisings from 1997, the particularly the sixth time speed-raising on April 18th, 2008, High Speed Train in China formally puts into operation, has alleviated the contradiction of railway transporting amount and capacity effectively, has received very significant social economic benefit.Along with the raising of train running speed, the rail vehicle riding quality also becomes the focus that people pay close attention to gradually.The important technological parameters of weighing the rail vehicle riding quality is operation comfort level, riding index, calculates and vibrates vertical, the horizontal and vertical acceleration information that is produced when these two indexs need the rail vehicle operation.So, how to obtain accurately, acceleration information and the basis of calculation how to choose comfort level, riding index become the key issue of weighing the rail vehicle riding quality reliably.At present, the evaluation criteria of domestic employing is UIC 513 " rolling stock in passenger's vibration comfort interpretational criteria " and " GB5595-85 standard ", and these two standards, criterions have provided test condition, rudimentary algorithm and the judgment standard of comfort level, stationarity.
Train is carried out comfort level and stationarity detection; Traditional method is vertical, the horizontal and vertical vibration acceleration that utilizes a large amount of rail vehicle vibration of computing machine online acquisition to be produced; According to the rudimentary algorithm of comfort level and stationarity, carry out online or calculated off-line, obtain a result.No matter utilize this method, be to adopt the online or form of off-line, all be unable to do without and utilize personal computer to carry out last digital computation, and it is easy to detect that this situation can not satisfy the requirement of Modern High-Speed railway, checkout equipment miniaturization, intelligentized requirement.Simultaneously, because the travelling speed of the comfort level of train and riding index and train is by confidential relation, Traditional calculating methods does not combine the instantaneous travelling speed of train and comfort level and the riding index that calculates, and has certain limitation.
Summary of the invention
The objective of the invention is to overcome above-mentioned technical deficiency; A kind of Portable Train vibration measurement instrument is provided, and that this tester has is portable, mass data storage, real time record train running speed, real time record train operation three-dimensional acceleration, real time record train position, real-time rendering speed and accelerating curve, calculate advantages such as comfort level and riding index in real time.
Portable Train vibration measurement instrument provided by the present invention is made up of FPGA, acceleration module, frequency module, GPS module, display module, Keysheet module, clock module, RAM module, data memory module, wireless network module and program storage block etc.FPGA is the field programmable gate array of altera corp, takes on the cpu function of vibration measurement instrument, utilizes Nois II software environment to build the kernel system; Various Peripheral Interface modules have been set up; Realize collection and storage, graphical interfaces, the data communication interface of data etc., embedded FPU Float Point Unit (FPU) utilizes the adding hardware command function of Nois II; The hardware instruction of in the kernel system, calling customization realizes the hardware floating point arithmetic; Realize quick calculating comfort level, riding index algorithm, guaranteed the real-time of tester, had the Presentation Function of the various figures of acceleration signal simultaneously; That acceleration module comprises is vertical, horizontal, extensional vibration acceleration and filtering circuit, AD7864 circuit; FPGA control AD7864 circuit carries out synchronous acquisition to the signal of train three-way vibration acceleration transducer process frequency overlapped-resistable filter, realizes tester three-way vibration acceleration synchronized sampling; Frequency module is accomplished the collection of train speed frequency signal, comprises ingredients such as rate signal voltage pressure limiting module, signal-adjusting module, signal amplification module, frequency acquisition module; The GPS module is accomplished train position (longitude, latitude), speed, direction, the collection of standard time, and carries out data communication through the RS-232 serial ports between the CPU, can confirm the information such as speed, position of train operation thus; Display module adopts 5.7 cun colored TFT liquid crystal displays, and interface is the RS232 serial line interface, is used for real-time rendering and upgrades acceleration figure, speed pattern, positional information, comfort level and riding index; Keysheet module is 4 * 4 matrix keyboards, and the function of 16 buttons is respectively: upper and lower, left and right, confirm, cancellation, numeral 0~9, be used for man-machine input information; It is that system provides the time that clock module adopts the DS1307 chip, utilizes gps time that it is carried out clock and demarcates; The RAM module is used for the interim acceleration information of gathering of preserving, and as the data buffer of calculating comfort level and riding index; Data memory module comprises that plate carries FLASH storage chip, SD card and USB flash disk interface; Be used to preserve raw acceleration data and calculate rare result and the information of corresponding speed, position; After the tester power down, the data in the data memory module are not lost, and can preserve 10 years; Wireless network module is by the Zigbee network struction, to realize the communication interface of tester and computing machine, is convenient to computing machine tester is controled; Program storage block is used for storing the configuration information among the FPGA, also is used for realizing Nois II software program storage simultaneously, realizes the FPGA automatic load operating program that powers on.
Described Portable Train vibration measurement instrument adopts FPGA as master controller; Design independently comfort level, riding index floating number computing module, realized train operation comfort level, the riding index algorithm of regulation in UIC 513 " passenger's vibration comfort interpretational criteria in the rolling stock " and " the GB5595-85 standard ".While design acceleration processing module can the real-time rendering accelerating curve.
Described Portable Train vibration measurement instrument utilizes GPS module and frequency speed module; Can carry out position analysis and rate curve drafting to train in real time; Set up the corresponding relation of acceleration and speed, position, time, set up Comfortability of Train, stationarity corresponding with it position, length velocity relation simultaneously.
Described Portable Train vibration measurement instrument adopts has the parallel AD7864 chip that transforms, and through the anti-aliasing filter circuit, makes tester have synchronism and strong anti-interference.
5.7 cun colored TFT liquid crystal displays in this tester display module are divided into two zones: graphics display area, data display area.The graphics display area with the real-time update train speed, each is to accelerating curve, data display area will show current time, train speed in real time, each is to acceleration and comfort level and riding index.
The built-in high capacity nonvolatile memory of this tester; Under the SF of 1KHz, can preserve 200 hours raw acceleration data and result of calculation at most; The back data that have a power failure can be preserved 10 years, and the data in the nonvolatile memory can copy backup through SD card or USB flash disk.
This tester has used Zigbee wireless network transmission module and computing machine to carry out communication, has realized the controlled in wireless to tester.
This tester designs with reference to TB/T2360-93 " railway locomotive dynamic performance check authentication method and evaluation criteria " and GB5599-85 " evaluation of railway technology standard performance and test specification ".Form by FPGA, acceleration module, frequency module, GPS module, display module, Keysheet module, clock module, RAM module, data memory module, wireless network module and program storage block etc.FPGA is the field programmable gate array of altera corp, takes on the cpu function of vibration measurement instrument, utilizes Nois II software environment to build the kernel system; Various Peripheral Interface modules have been set up; Realize collection and storage, graphical interfaces, the data communication interface of data etc., embedded FPU Float Point Unit (FPU) utilizes the adding hardware command function of Nois II; The hardware instruction of in the kernel system, calling customization realizes the hardware floating point arithmetic; Realize quick calculating comfort level, riding index algorithm, guaranteed the real-time of tester, had the Presentation Function of the various figures of acceleration signal simultaneously; That acceleration module comprises is vertical, horizontal, extensional vibration acceleration and filtering circuit, AD7864 circuit; FPGA control AD7864 circuit carries out synchronous acquisition to the signal of train three-way vibration acceleration transducer process frequency overlapped-resistable filter, realizes tester three-way vibration acceleration synchronized sampling; Frequency module is accomplished the collection of train speed frequency signal, comprises ingredients such as rate signal voltage pressure limiting module, signal-adjusting module, signal amplification module, frequency acquisition module; The GPS module is accomplished train position (longitude, latitude), speed, direction, the collection of standard time, and carries out data communication through the RS-232 serial ports between the CPU, can confirm the information such as speed, position of train operation thus; Display module adopts 5.7 cun colored TFT liquid crystal displays, and interface is the RS232 serial line interface, is used for real-time rendering and upgrades acceleration figure, speed pattern, positional information, comfort level and riding index; Keysheet module is 4 * 4 matrix keyboards, and the function of 16 buttons is respectively: upper and lower, left and right, confirm, cancellation, numeral 0~9, be used for man-machine input information; It is that system provides the time that clock module adopts the DS1307 chip, utilizes gps time that it is carried out clock and demarcates; The RAM module is used for the interim acceleration information of gathering of preserving, and as the data buffer of calculating comfort level and riding index; Data memory module comprises that plate carries FLASH storage chip, SD card and USB flash disk interface; Be used to preserve raw acceleration data and calculate rare result and the information of corresponding speed, position; After the tester power down, the data in the data memory module are not lost, and can preserve 10 years; Wireless network module is by the Zigbee network struction, to realize the communication interface of tester and computing machine, is convenient to computing machine tester is controled; Program storage block is used for storing the configuration information among the FPGA, also is used for realizing Nois II software program storage simultaneously, realizes the FPGA automatic load operating program that powers on.
The present invention compared with prior art has the following advantages:
This tester adopts FPGA as master controller; Independently comfort level, riding index floating number computing module and acceleration processing have been designed; Realized train operation comfort level, the riding index algorithm of UIC 513, the calculating of ability real-time rendering accelerating curve and various eigenwerts with " GB5595-85 standard " middle regulation.
This tester utilizes GPS module and frequency speed module; Can carry out position analysis and rate curve drafting to train in real time; Set up the corresponding relation of vibration acceleration and speed, position, time, set up corresponding with it position, the length velocity relation of Comfortability of Train, stationarity simultaneously.
This tester adopts has the parallel AD7864 chip that transforms, and three road AD signals are sampled simultaneously, has synchronism, and through the anti-aliasing filter circuit, makes tester have synchronism and strong anti-interference.
This tester flash storer built-in high capacity 4GB, non-volatile; Under the SF of 1KHz, can preserve 200 hours raw acceleration data and result of calculation at most; The back data that have a power failure can be preserved 10 years, and the data in the nonvolatile memory can copy backup through SD card or USB flash disk.
5.7 cun colored TFT liquid crystal displays in this tester display module are divided into two zones: graphics display area, data display area.The graphics display area with the real-time update train speed, each is to accelerating curve, data display area will show current time, train speed in real time, each is to acceleration and comfort level and riding index.
This tester has used Zigbee wireless network transmission module and computing machine to carry out communication, has realized the controlled in wireless to tester.
Description of drawings
Fig. 1 is the front elevation of Portable Train vibration measurement instrument provided by the invention;
Fig. 2 is the left view of Portable Train vibration measurement instrument provided by the invention;
Fig. 3 is the hardware block diagram of Portable Train vibration measurement instrument provided by the invention;
Fig. 4 is the software flow pattern of Portable Train vibration measurement instrument provided by the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is the front elevation of Portable Train vibration measurement instrument provided by the invention.Shown in figure, the housing top of Portable Train vibration measurement instrument is provided with display screen 1, and the front of Handheld Division is provided with operation keyboard 2.
Fig. 2 is the left view of Portable Train vibration measurement instrument provided by the invention.
Fig. 3 is the hardware block diagram of Portable Train vibration measurement instrument provided by the invention.This tester adopts the field programmable gate array (FPGA) of altera corp, utilizes Nois II software environment to build the kernel system, the collection of realization data and storage, graphical interfaces, data communication interface etc.; Embedded FPU Float Point Unit (FPU) utilizes the adding hardware command function of Nois II, and the hardware instruction of in the kernel system, calling customization realizes the hardware floating point arithmetic, realizes calculating fast comfort level, riding index, guarantees the real-time of system.Mainly by forming with the lower part: FPGA, acceleration module, frequency module, GPS module, display module, Keysheet module, clock module, RAM module, data memory module, wireless network module and program storage block etc. are formed.
Fig. 4 is the software flow pattern of the FPGA kernel system of Portable Train vibration measurement instrument provided by the invention.As shown in the figure:
1. start, checking user: open the tester shell, can see LCD on the test panel, keyboard, power switch, wireless communication interface, charging inlet, three-dimensional sensor and a GPS external antenna and operation instructions.Sensor and gps antenna are taken out the explanation according to operation instructions; Be installed in tram on the tester, connect the speed in frequency signal simultaneously, closed then power switch; On LCD, will demonstrate login interface; Behind input right user name and the password, then get into main interface, utilize button can carry out various operations.
2. main interface: four operation interfaces such as the sharing system parameter setting of main interface, the inquiry of historical data, data acquisition and upper machine communication.In the keyboard " on ", the D score button is used for choosing corresponding operation item, " confirming " button is used for getting into corresponding operation interface.
3. system parameter setting interface: this interface has four options: acceleration parameter, time parameter, customer parameter, storage medium parameter.Through " on ", the D score key can switch between four, " confirming " key gets into the relevant parameters setting, " cancellation " key is for withdrawing from current operation, and returns the last layer interface.
4. the inquiry of historical data interface: when in main interface, selecting the inquiry of historical data option; To get into the inquiry of historical data interface; At first need import the time of checking historical data is the date Hour Minute Second, and system can be with being presented on the interface from the nearest historical data of this time point, if system does not also have historical data; Then the display system no datat please withdraw from.When showing historical data, through " on ", the D score key can switch near the measured value this time point, and can cyclic query.
5. data acquisition interface: this interface is real-time collection analysis interface, comprises graphics display area and data display area.The graphics display area with the real-time update train speed, each is to accelerating curve, data display area will show current time, train speed in real time, each is to acceleration and comfort level and riding index.
6. upper machine communication interface: this interface is and the computer interface interface to utilize software can realize the setting of wireless control system parameter, user name and functions such as Password Management, data query and management.
7, software operation: tester is furnished with corresponding software operation.
User name and Password Management: utilize special software that the login user and the password of tester can be set.
Sensor parameters is provided with: this operation comprises the sensitivity and the reset of three-dimensional sensor, and each item setting is independently.
Time is provided with: this operation is the system time that tester is set, and power down can be preserved.
Data read: this operation is that the data in the tester built-in FLASH are read in the hard disc of computer, can once read all data, also can selectively read the data of certain test.
Clear data: this operation will be removed the data in the tester, require to re-enter user cipher and confirm operation.
Data analysis: this operation will be analyzed the data of tester, as drawing accelerating curve, spectrum analysis etc.
On tested train; Degree of will speed up sensor is fixed on the position that GB requires, and gps antenna is put the window limit, the two joint is connected on corresponding position on the shell of tester respectively; Connect the frequency signal of train speed simultaneously; Opening power, tester gets into operation interface through after the initialization, utilizes button can select different testing functions.Car body three-dimensional acceleration signal is through getting into the A/D sample circuit behind the frequency overlapped-resistable filter in process of the test; Nuclear control A/D sample circuit carries out analog to digital conversion in the FPGA; And collection GPS and frequency signal; Position that train effective is current and speed data, the FPU in the FPGA kernel utilizes each item acceleration information to calculate comfort level and riding index in real time simultaneously, then preservation, update displayed.After having tested; Utilize wireless communication networks to connect tester and computing machine; Can the result of tester record and original acceleration, gps signal and rate signal be read through analysis software, in the database of computing machine, preserve, analyze, inquire about, can carry out trend analysis to the data of same car simultaneously; Analyze train body and vibrate in time or the change procedure of speed, judge the train body performance state.
Compared with present technology; The Portable Train vibration measurement instrument of this novelty, the comfort level of train effective and stationarity can also be preserved original acceleration signal simultaneously in real time; And combination GPS and speed in frequency signal; Can confirm that various data obtain under operating modes such as what speed, position, time,, utilize special software can also realize the analysis of data, inquiry, trend comparison for the performance state analysis of train provides information more accurately.The Portable Train vibration measurement instrument overcomes the shortcoming that traditional vibration-testing need rely on computing machine, has characteristics such as simple to operate, easy to carry.
Though described embodiment of the present invention in conjunction with accompanying drawing, various distortion or modification that those of ordinary skills do not need performing creative labour just can make within the scope of the appended claims still belong to protection domain originally.

Claims (4)

1. a Portable Train vibration measurement instrument is made up of FPGA, acceleration module, frequency module, GPS module, display module, Keysheet module, clock module, RAM module, data memory module, wireless network module and program storage block etc.FPGA is the field programmable gate array of altera corp, takes on the cpu function of vibration measurement instrument, utilizes Nois II software environment to build the kernel system; Various Peripheral Interface modules have been set up; Realize collection and storage, graphical interfaces, the data communication interface of data etc., embedded FPU Float Point Unit (FPU) utilizes the adding hardware command function of Nois II; The hardware instruction of in the kernel system, calling customization realizes the hardware floating point arithmetic; Realize quick calculating comfort level, riding index algorithm, guaranteed the real-time of tester, had the Presentation Function of the various figures of acceleration signal simultaneously; That acceleration module comprises is vertical, horizontal, extensional vibration acceleration and filtering circuit, AD7864 circuit; FPGA control AD7864 circuit carries out synchronous acquisition to the signal of train three-way vibration acceleration transducer process frequency overlapped-resistable filter, realizes tester three-way vibration acceleration synchronized sampling; Frequency module is accomplished the collection of train speed frequency signal, comprises ingredients such as rate signal voltage pressure limiting module, signal-adjusting module, signal amplification module, frequency acquisition module; The GPS module is accomplished train position (longitude, latitude), speed, direction, the collection of standard time, and carries out data communication through the RS-232 serial ports between the CPU, can confirm the information such as speed, position of train operation thus; Display module adopts 5.7 cun colored TFT liquid crystal displays, and interface is the RS232 serial line interface, is used for real-time rendering and upgrades acceleration figure, speed pattern, positional information, comfort level and riding index; Keysheet module is 4 * 4 matrix keyboards, and the function of 16 buttons is respectively: upper and lower, left and right, confirm, cancellation, numeral 0~9, be used for man-machine input information; It is that system provides the time that clock module adopts the DS1307 chip, utilizes gps time that it is carried out clock and demarcates; The RAM module is used for the interim acceleration information of gathering of preserving, and as the data buffer of calculating comfort level and riding index; Data memory module comprises that plate carries FLASH storage chip, SD card and USB flash disk interface; Be used to preserve raw acceleration data and calculate rare result and the information of corresponding speed, position; After the tester power down, the data in the data memory module are not lost, and can preserve 10 years; Wireless network module is by the Zigbee network struction, to realize the communication interface of tester and computing machine, is convenient to computing machine tester is controled; Program storage block is used for storing the configuration information among the FPGA, also is used for realizing Nois II software program storage simultaneously, realizes the FPGA automatic load operating program that powers on.
It is characterized in that:
Described Portable Train vibration measurement instrument adopts FPGA as master controller; Design independently comfort level, riding index floating number computing module, realized train operation comfort level, the riding index algorithm of regulation in UIC 513 " passenger's vibration comfort interpretational criteria in the rolling stock " and " the GB5595-85 standard ".While design acceleration processing module can the real-time rendering accelerating curve.
Described Portable Train vibration measurement instrument utilizes GPS module and frequency speed module; Can carry out position analysis and rate curve drafting to train in real time; Set up the corresponding relation of acceleration and speed, position, time, set up Comfortability of Train, stationarity corresponding with it position, length velocity relation simultaneously.
Described Portable Train vibration measurement instrument adopts has the parallel AD7864 chip that transforms, and through the anti-aliasing filter circuit, makes tester have synchronism and strong anti-interference.
2. Portable Train vibration measurement instrument according to claim 1 is characterized in that 5.7 cun colored TFT liquid crystal displays in the said tester display module are divided into two zones: graphics display area, data display area.The graphics display area with the real-time update train speed, each is to accelerating curve, data display area will show current time, train speed in real time, each is to acceleration and comfort level and riding index.
3. Portable Train vibration measurement instrument according to claim 1; It is characterized in that the built-in high capacity nonvolatile memory of said tester; Under the SF of 1KHz, can preserve 200 hours raw acceleration data and result of calculation at most; The back data that have a power failure can be preserved 10 years, and the data in the nonvolatile memory can copy backup through SD card or USB flash disk.
4. Portable Train vibration measurement instrument according to claim 1 is characterized in that said tester has used Zigbee wireless network transmission module and computing machine to carry out communication, has realized the controlled in wireless to tester.
CN2012101587540A 2012-05-22 2012-05-22 Portable train vibration tester CN102706568A (en)

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CN106708021A (en) * 2017-01-10 2017-05-24 株洲中车时代电气股份有限公司 Signal synchronous assignment method and device for automatically testing rail transit vehicles
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CN110296802A (en) * 2019-06-26 2019-10-01 国网辽宁省电力有限公司葫芦岛供电公司 Shaft tower bolt looseness method of discrimination based on vibrating speed sensors waveform acquisition

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102914364A (en) * 2012-10-19 2013-02-06 西南交通大学 Dynamic identifying method for instant contact loss of wheel rail under impact effect of wheel rail
CN104228872A (en) * 2014-09-28 2014-12-24 江苏润仪仪表有限公司 Portable track irregularity online monitoring device and method
CN104458293A (en) * 2014-12-15 2015-03-25 南车株洲电力机车有限公司 Locomotive smoothness testing method and system
CN105676843A (en) * 2016-04-13 2016-06-15 中国汽车技术研究中心 New energy automobile benchmarking and evaluation system and method
CN106708021A (en) * 2017-01-10 2017-05-24 株洲中车时代电气股份有限公司 Signal synchronous assignment method and device for automatically testing rail transit vehicles
CN107014419A (en) * 2017-03-23 2017-08-04 西安交通大学 Quartz based on FPGA+SOPC shakes beam resonant transducer test system
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CN107860594A (en) * 2017-10-17 2018-03-30 西南交通大学 A kind of method for determining bullet train degree of passenger comfort
CN108791369A (en) * 2018-06-12 2018-11-13 郑州大学 A kind of Metro Passenger comfort level evaluating system based on multi-modal signal
CN109470496A (en) * 2018-10-11 2019-03-15 中南大学 The appraisal procedure and system of train body transient state high vibration cause vibration comfort
CN109343392A (en) * 2018-10-12 2019-02-15 湖南中车时代通信信号有限公司 A kind of the test signal creating method and system of rail transit train
CN110296802A (en) * 2019-06-26 2019-10-01 国网辽宁省电力有限公司葫芦岛供电公司 Shaft tower bolt looseness method of discrimination based on vibrating speed sensors waveform acquisition

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Application publication date: 20121003