CN208238924U - A kind of bridge roadbed and rail high speed vibration detection device - Google Patents
A kind of bridge roadbed and rail high speed vibration detection device Download PDFInfo
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- CN208238924U CN208238924U CN201820399895.4U CN201820399895U CN208238924U CN 208238924 U CN208238924 U CN 208238924U CN 201820399895 U CN201820399895 U CN 201820399895U CN 208238924 U CN208238924 U CN 208238924U
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- line array
- array ccd
- vibration detection
- high speed
- detection device
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Abstract
The utility model discloses a kind of bridge roadbeds and rail high speed vibration detection device in vibration detection field, it include: laser light source, optics line array CCD, A/D sample processing unit, ram memory cell, MCU data processing communication unit, network communication module, host computer and FPGA work-based logic timing generation unit, FPGA work-based logic timing generation unit respectively with laser light source, optics line array CCD, A/D sample processing unit and network communication module electrical connection, optics line array CCD is electrically connected with A/D sample processing unit, A/D sample processing unit is electrically connected with ram memory cell, ram memory cell is electrically connected with MCU data processing communication unit, MCU data processing communication unit is electrically connected with network communication module, the utility model makes detection accuracy It is higher, it is more efficient, the intelligence of detection is improved, can be used in bridge roadbed vibration detection.
Description
Technical field
The utility model relates to a kind of vibration detection device, in particular to a kind of bridge roadbed and rail high speed vibration detection
Device.
Background technique
Bridge roadbed track can be generated forced vibration by the excitation of load, and the amplitude and frequency of vibration are that safe condition is commented
One of important parameter of valence.Examination to such building, and measurement periodically or non-periodically is carried out, just seem very heavy
It wants.
And existing vibration measurement mode is measured frequently with acceleration sensing or electrodynamic type velocity sensor measures this kind of contact
The measurement method of formula, contact type measurement have its inborn limitation: measurement is cumbersome, be not capable of measuring can not contactant, to soft
Property object measurement the interference of artificial stress, acquisition speed is slow etc..Non-contact measurement can make up these deficiency, so also at
For the development trend in engineering measurement field.
In addition in the technology of some optical measurement configurations, although using optical touchless system, using
The one-to-one correspondence mode of one datum mark and a measurement point, during vibration measurement, especially underground rail engineering survey process
In, since space is limited, measured point and datum mark are closer, in practical work process, the vibration meeting of measured point
Datum mark is influenced, measurement result is made to generate deviation.
For long range ranging, need to obtain the vibration information of multiple measured points, existing measurement method is both for list
Point information collection, then saves the data in the storage device of measuring device, and reading process is distinguished after measurement terminates, is deposited
In the low disadvantage for the treatment of effeciency.
Utility model content
The purpose of the utility model is to provide a kind of bridge roadbeds and rail high speed vibration detection device, so that detection accuracy
It is higher, it is more efficient, improve the intelligence of detection.
Purpose of the utility model is realized as follows: a kind of bridge roadbed and rail high speed vibration detection device, comprising:
Laser light source, to generate laser；
Optics line array CCD, to receive the laser signal of laser light source sending, cooperation laser light source detects optics linear array
Whether CCD occurs vibration offset, generates voltage analog signal；
A/D sample processing unit, the voltage analog signal to generate optics line array CCD are converted into voltage digital letter
Number；
Ram memory cell, the voltage digital signal obtained to store A/D sample processing unit；
MCU data processing communication unit is communicated with ram memory cell by parallel port, reads the voltage of digital signal
Information, and network communication module and host computer is driven to be communicated；
Network communication module, to realize the communication of MCU data processing communication unit and host computer；
Host computer is compared and analyzed to store vibration offset information；
FPGA work-based logic timing generation unit, to generate driving signal driving laser light source, optics line array CCD, A/D
Sample processing unit and network communication module work；
The FPGA work-based logic timing generation unit respectively with laser light source, optics line array CCD, A/D sampling processing list
Member and network communication module electrical connection, the optics line array CCD are electrically connected with A/D sample processing unit, A/D sampling processing list
Member is electrically connected with ram memory cell, and ram memory cell is electrically connected with MCU data processing communication unit, MCU data processing communication
Unit is electrically connected with network communication module.
As further limiting for the utility model, the laser light source uses linear laser source.
As further limiting for the utility model, the optics line array CCD selects the TCD2701C of Toshiba.
As further limiting for the utility model, the A/D sample processing unit uses AD7606 chip.
As further limiting for the utility model, the MCU data processing communication unit uses the low-power consumption of TI company
MSP430。
As further limiting for the utility model, the network communication module uses the W5500 of hardware protocol stacks.
As further limiting for the utility model, the FPGA work-based logic timing generation unit is using Altera's
For the FPGA of EP3C5E144C8N model as driving main control device, ram memory cell is to be blurred out inside FPGA using soft core
The device come.
When utility model works, laser light source is installed on datum mark, point is measured for single, on measured point
Optics line array CCD is installed, for multiple measured points, optics line array CCD and laser light source are installed on measured point；Laser
The starting of light source is started by FPGA work-based logic timing generation unit, and laser light source needs to open according to certain frequency according to system
Linear laser source is closed, linear laser is issued；Optics line array CCD receives laser signal and generates offset if measured point vibrates
Voltage signal, voltage signal are converted into voltage digital signal through A/D sample processing unit and are sent to ram memory cell, MCU data
The digital signal is extracted and is sent to host computer through network communication module by processing communication unit.
Compared with prior art, the utility model has the beneficial effects that:
It 1. the utility model uses line array CCD measuring technique, remote, contactless can measure, and measure essence
Degree is high, and micron-sized measurement may be implemented；
2. the W5500 using hardware protocol stacks carries out real-time data acquisition and transmission, have transmitted data amount big, passes
Defeated speed is fast, easy to carry, simple operation and other advantages, is convenient for field work；
3. can be detected with relative accumulation；It is exactly a datum mark, multiple measurement points, after initialization of calibration, relative position
It all preserves, it is all 0 that vibration, which deviates, the vibration in later period successively pusher；Remote multiple spot one-shot measurement success may be implemented；
4. it is convenient to be connected with computer after network communication data transmission, carry out network data transmission.
Detailed description of the invention
Fig. 1 is the utility model construction module schematic diagram.
Fig. 2 is the utility model building-block of logic.
Specific embodiment
A kind of bridge roadbed and rail high speed vibration detection device as shown in Figs. 1-2, comprising:
Laser light source, to generate laser；
Optics line array CCD, to receive the laser signal of laser light source sending, cooperation laser light source detects optics linear array
Whether CCD occurs vibration offset, generates voltage analog signal；
A/D sample processing unit, the voltage analog signal to generate optics line array CCD are converted into voltage digital letter
Number；
Ram memory cell, the voltage digital signal obtained to store A/D sample processing unit；
MCU data processing communication unit is communicated with ram memory cell by parallel port, reads the voltage of digital signal
Information, and network communication module and host computer is driven to be communicated；
Network communication module, to realize the communication of MCU data processing communication unit and host computer；
Host computer is compared and analyzed to store vibration offset information；
FPGA work-based logic timing generation unit, to generate driving signal driving laser light source, optics line array CCD, A/D
Sample processing unit and network communication module work；
The FPGA work-based logic timing generation unit respectively with laser light source, optics line array CCD, A/D sampling processing list
Member and network communication module electrical connection, the optics line array CCD are electrically connected with A/D sample processing unit, A/D sampling processing list
Member is electrically connected with ram memory cell, and ram memory cell is electrically connected with MCU data processing communication unit, MCU data processing communication
Unit is electrically connected with network communication module.
The laser light source uses linear laser source, and specification is 515nm 10mw high stable green light a wordline laser device,
Indoor distance can achieve 12 meters, and under outdoor ordinary ray radiation situation, distance can achieve 7 meters.
The optics line array CCD uses the TCD2701C of Toshiba, and precision is up to 9.325um, measurement range
69.9375mm includes 4000 pixel sensitivity specks altogether.
The FPGA work-based logic timing generation unit is using the FPGA of the EP3C5E144C8N model of Altera as drive
Dynamic main control device, can be with the driving of the driving signal of parallel output line array CCD, AD7606 transition drive signal and network communication
Signal.
The A/D sample processing unit uses the AD7606 chip of AD company, and the measurement accuracy of AD7606 is 12, measurement
Range is that positive and negative 5V or positive and negative 10V can be set, and resolution ratio reaches 1.2mV.
The ram memory cell is the device for blurring out using soft core inside FPGA, be mainly used to store AD conversion it
Data afterwards, the data of AD conversion correspond to optics line array CCD output information of voltage, RAM can carry out simultaneously data write-in and
The reading of data, and internal capacity and parallel channel number can be configured by software.
The network communication module uses the W5500 of hardware protocol stacks, 8 Socket with software programmable, most
Big transmission speed reaches 100M/S, and FGPA can directly drive W5500, send host computer in real time for the data in dual port RAM.
For the not high system of requirement of real-time, can after sampling terminates, using MCU to the data being stored in dual port RAM into
Row processing.
The MCU data processing communication unit carries out data processing, MSP430 using the low-power consumption MSP430 of TI company
It can work in hang-up and standby mode, both low-power consumption modes can be configured by software.MCU by parallel port and
Dual port RAM is communicated, and the information of voltage of optical signal is read, and W5500 and host computer is driven to be communicated；
The ipc monitor unit is write using C#, has data storage, the ability of display and analysis, for bottom
Machine sends the data come up, and compares and analyzes, finds out maximum offset, and maximum offset is depicted as curve, thus
Facilitate the analysis of vibration trend.
Utility model works principle is as follows:
When the utility model at work, linear laser transmitter is installed on datum mark, is measured point for single,
Line array CCD measuring device is installed on measured point, for multiple measured points, be equipped on measured point line array CCD measurement and
Linear laser transmitter integrated device；
The light source uses linear laser source, and specification is 515nm 10mw high stable green light a wordline laser device, and is swashed
The installation direction of light device makes one word of light source presentation level, and the transmission range of linear laser source indoors can achieve 12 meters, outdoor
Under ordinary ray radiation situation, distance can achieve 7 meters.In transmission process, in order to be always maintained at light source linearly, using standard
Straight device is straight by laser source；
The starting of linear laser light source is started by FPGA work-based logic timing generation unit, and laser source is according to system needs
According to certain frequency switched linear laser source, linear laser is issued；
FPGA work-based logic timing generation unit generates driving logical sequence, controls start and stop, the driving of linear laser light source
Line array CCD operates normally work output relevant voltage, driving high-speed AD carries out voltage conversion, virtualization internal dual port RAM is used to deposit
The network hardware interface of data, the soft framework of generation after storage conversion realizes that network is logical for driving hardware net chips W 5500
Letter.
Laser beam is on the photosurface of optics linear CCD sensor by optical alignment system by linear laser light source；
Linear CCD sensor is converted into the optical signal received in photosensitive member the electricity directly proportional to light intensity and time for exposure
Lotus amount, to be accumulated as and light intensity, time for exposure directly proportional voltage；
Meanwhile FPGA work-based logic timing generation unit starts and issues parallel drive signal, drives the normal work of line array CCD
Make, according to Fixed Time Interval output drive signal, makes to expose the voltage output accumulated in photosensitive member every time；One driving frame will
Driving 4000 times, the voltage potential barrier Sequential output that will be accumulated in 4000 photosensitive members in optics line array CCD plane, 4000 voltages
Signal is a frame；
The voltage signal of optics line array CCD output is connected to the analog input of ultra high speed A/D conversion module by conditioning circuit
Port；
Meanwhile the voltage output of the photosensitive member of FPGA work-based logic timing generation unit driving line array CCD is simultaneously, driving
The work of AD7606 voltage conversion unit, exports corresponding digital quantity；4000 voltages of photosensitive member are a frame change data；
Double mouth RAM is mainly used to store the voltage data amount after AD conversion;
Meanwhile the digital quantity that FPGA work-based logic timing generation unit converts the voltage into is stored in the internal twoport blurred
In RAM；4000 voltage change datas of photosensitive member are a frame, are stored in internal dual port RAM according to fixed sequence program；
FPGA work-based logic driving circuit issues parallel drive signal, works normally high-speed AD, and by analog input end
The voltage signal of input is converted into digital quantity；
Meanwhile the system high for requirement of real-time, FPGA work-based logic timing generation unit drive hardware net communication
Interfaces；The W5500 of hardware protocol stacks sends host computer for data by network protocol in real time；
Host computer carries out data processing according to the real time data received, to each frame, draws each point of a frame data
Information of voltage, and the corresponding label of voltage max invocation point in a frame data is preserved, and be processed into corresponding displacement
Information, then the homologous thread of this displacement is drawn out, this curve is exactly the displacement information vibrated；
Meanwhile the system not high for requirement of real-time passes through MCU data processing communication after systematic survey terminates
Unit transmits data to host computer, and data handling procedure is same as above；
This patent is when relay measures: datum mark (or datum mark) is equipped with a linear light sorurce, and datum mark is kept not
Dynamic, the transmission range to A point is X meters, within the scope of linear laser light source, if A point generates vibration, at this point, CCD device
The vibration of A point can be measured, the vibration offset PA of A point can be obtained by, simultaneously as the vibration of A point generates offset, A point
The linear light sorurce set can also generate offset PA；Meanwhile the CCD device of B point can receive the light signal of A point, while the vibration of B point
Dynamic offset PB can also measure to obtain；And so on, the offset PN that the CCD device measurement of n point obtains can also measure to obtain.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (7)
1. a kind of bridge roadbed and rail high speed vibration detection device characterized by comprising
Laser light source, to generate laser；
Optics line array CCD, to receive the laser signal of laser light source sending, cooperation laser light source detection optics line array CCD is
No generation vibration offset, generates voltage analog signal；
A/D sample processing unit, the voltage analog signal to generate optics line array CCD are converted into voltage digital signal；
Ram memory cell, the voltage digital signal obtained to store A/D sample processing unit；
MCU data processing communication unit is communicated with ram memory cell by parallel port, reads the information of voltage of digital signal,
And network communication module and host computer is driven to be communicated；
Network communication module, to realize the communication of MCU data processing communication unit and host computer；
Host computer is compared and analyzed to store vibration offset information；
FPGA work-based logic timing generation unit, to generate driving signal driving laser light source, optics line array CCD, A/D sampling
Processing unit and network communication module work；
The FPGA work-based logic timing generation unit respectively with laser light source, optics line array CCD, A/D sample processing unit with
And network communication module electrical connection, the optics line array CCD is electrically connected with A/D sample processing unit, A/D sample processing unit and
Ram memory cell electrical connection, ram memory cell are electrically connected with MCU data processing communication unit, MCU data processing communication unit
It is electrically connected with network communication module.
2. a kind of bridge roadbed according to claim 1 and rail high speed vibration detection device, which is characterized in that described to swash
Radiant uses linear laser source.
3. a kind of bridge roadbed according to claim 1 or 2 and rail high speed vibration detection device, which is characterized in that institute
State the TCD2701C that optics line array CCD selects Toshiba.
4. a kind of bridge roadbed according to claim 1 or 2 and rail high speed vibration detection device, which is characterized in that institute
A/D sample processing unit is stated using AD7606 chip.
5. a kind of bridge roadbed according to claim 1 or 2 and rail high speed vibration detection device, which is characterized in that institute
State the low-power consumption MSP430 that MCU data processing communication unit uses TI company.
6. a kind of bridge roadbed according to claim 1 or 2 and rail high speed vibration detection device, which is characterized in that institute
State the W5500 that network communication module uses hardware protocol stacks.
7. a kind of bridge roadbed according to claim 1 or 2 and rail high speed vibration detection device, which is characterized in that institute
FPGA work-based logic timing generation unit is stated using the FPGA of the EP3C5E144C8N model of Altera as driving master controller
Part, ram memory cell are the device for blurring out using soft core inside FPGA.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820399895.4U CN208238924U (en) | 2018-03-23 | 2018-03-23 | A kind of bridge roadbed and rail high speed vibration detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820399895.4U CN208238924U (en) | 2018-03-23 | 2018-03-23 | A kind of bridge roadbed and rail high speed vibration detection device |
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| CN208238924U true CN208238924U (en) | 2018-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021052020A1 (en) * | 2019-04-26 | 2021-03-25 | 深圳市豪视智能科技有限公司 | Vibration testing system |
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2018
- 2018-03-23 CN CN201820399895.4U patent/CN208238924U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021052020A1 (en) * | 2019-04-26 | 2021-03-25 | 深圳市豪视智能科技有限公司 | Vibration testing system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |