CN208233070U - Raceway surface undulatory wear and hurt detection device - Google Patents
Raceway surface undulatory wear and hurt detection device Download PDFInfo
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- CN208233070U CN208233070U CN201820087757.2U CN201820087757U CN208233070U CN 208233070 U CN208233070 U CN 208233070U CN 201820087757 U CN201820087757 U CN 201820087757U CN 208233070 U CN208233070 U CN 208233070U
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Abstract
The embodiment of the present application provides a kind of raceway surface undulatory wear and hurt detection device, described device includes twin shaft measurement vehicle, measuring device matrix, the first wheel, first wheel is installed on the lower part of the measuring device matrix, and the twin shaft measurement vehicle is fixedly connected with the measuring device matrix.The twin shaft measurement vehicle includes fixing piece, load-bearing part, the second wheel, displacement sensor and angular-rate sensor.Second wheel is installed on the lower part of the load-bearing part, and the angular-rate sensor is set to the load-bearing part, and institute's displacement sensors are set to the center location of second wheel.Displacement data and angular velocity data are obtained respectively by displacement sensor and angular-rate sensor, linear velocity is obtained according to displacement data, then according to the severity of the ratio real-time judge raceway surface undulatory wear and hurt of angular speed and linear velocity, Realtime Alerts when transfiniting.The exact numerical of undulatory wear and hurt can be obtained by accurate Processing Algorithm afterwards.
Description
Technical field
This application involves track fields, in particular to a kind of raceway surface undulatory wear and hurt detection device.
Background technique
The power of natural environment, rail itself quality and train effect etc. due to, Rail Surface can exist damage,
Phenomena such as abrasion and undulatory wear (referred to as " wave mill ").Rail Surface undulatory wear and hurt situation transport trackage
Row influence it is great, when being locomotive operation generate vibration and noise excitation source, influence locomotive service life and seating it is comfortable
Property, increase the cost of railroad maintenance, be also possible to lead to train derailment when serious, causes the massive losses of lives and properties.Practice table
Bright, rail undulatory wear and hurt must just be repaired at the initial stage of formation, otherwise will ramp up deterioration at any time.Cause
This, how to carry out quickly accurate detection to Rail Surface undulatory wear and hurt becomes the critical issue of rail disease prevention and treatment.
In the prior art, the inertia displacement of rail tread is directly measured for inertial reference often through acceleration transducer:
Railway wheelset axle box or dedicated floating measurement probe directly being contacted with tested rail tread and along rail tread relative movement
On, connect firmly adding for an inertia displacement when energy obtains measurement probe movement by quadratic integral perpendicular to rail tread direction
Velocity sensor, using the inertia displacement of the consecutive variations as the measured value to rail tread undulatory wear and hurt state.It should
Measurement method has the following disadvantages: in the presence of because the limitation of mechanism dynamic characteristic is difficult to remain closely connected with tested rail tread；
There are either large or small contact arcs can bring unnecessary distorted signals when contacting with tested rail tread；Mechanism abnormal vibrations are easy
Lead to inertia displacement integral saturation and acceleration transducer impact injury；Dedicated floating measurement probe is in rail tread moving process
In easily abrasion and the main problems such as fatigue rupture, be less conducive to complicated railway and use.
Another detection method is succinctly to measure rail tread using acceleration transducer as inertial reference in the prior art
Inertia displacement: on the matrixes such as the Railway wheelset axle box relatively moved along rail tread, being installed with an acceleration transducer, should
Sensor can pass through matrix inertia displacement when quadratic integral acquisition matrix movement perpendicular to rail tread direction；It is installed with simultaneously
One can directly measure contact or non-contact displacement transducer of the matrix relative to rail tread relative displacement.With continuous
The inertia displacement of variation is superimposed with relative displacement as the measured value to rail undulatory wear and hurt state.The measurement method
Have the following disadvantages: that detection device abnormal vibrations easily lead to inertia displacement integral saturation；Detection device abnormal vibrations are to acceleration
The problem of sensor shock damages still has, and the successful application in practice is less.
Another more common detection method is fixed by the relative displacement of string benchmark of straight line guide ruler in the prior art
Point measurement, basic principle are as follows: be hooked and in the opposing stationary string benchmark guide ruler for being placed in tested rail tread, be equipped with one
It is a that the contact of distance or noncontacting proximity sensor between guide ruler and tested rail tread can be moved and can directly measured along guide ruler, with
The distance value of the consecutive variations is as the measured value to rail tread undulatory wear and hurt state, as HYGP-3 rail is straight
Spend measuring instrument etc..That there are disadvantages is as follows for such detection method: because one-point measurement mode causes measurement efficiency low and large labor intensity；
Cause overlap joint error big because needing to carry out data overlap joint；Undulatory wear and hurt continuously measure etc. main in not competent larger range
Want problem.
Summary of the invention
The embodiment of the present application provides a kind of raceway surface undulatory wear and hurt detection device.
On the one hand, the embodiment of the present application provides a kind of raceway surface undulatory wear and hurt detection device, described device
Vehicle, measuring device matrix, the first wheel are measured including twin shaft, first wheel is installed under the measuring device matrix
Portion, the twin shaft measurement vehicle are fixedly connected with the measuring device matrix.Twin shaft measurement vehicle include fixing piece, load-bearing part,
Second wheel, displacement sensor and angular-rate sensor, the fixing piece is fixedly connected with the measuring device matrix, described
Fixing piece is connect with the load-bearing part, and second wheel is installed on the lower part of the load-bearing part, and the angular-rate sensor is set
It is placed in the load-bearing part, institute's displacement sensors are set to the center location of second wheel.
On the other hand, the embodiment of the present application provides a kind of raceway surface undulatory wear and hurt detection method, the side
Method includes: to obtain the collected displacement data of displacement sensor；Obtain the collected angular velocity data of angular-rate sensor；It obtains
First ratio of the angular velocity data and the linear velocity data；Judge whether the linear velocity data are more than first threshold；
If so, judging whether first ratio is more than second threshold；If so, issuing alarm signal.
Raceway surface undulatory wear provided by the embodiments of the present application and hurt detection device have the beneficial effect that
It includes twin shaft that the embodiment of the present application, which provides a kind of raceway surface undulatory wear and hurt detection device, described device,
Vehicle, measuring device matrix, the first wheel are measured, first wheel is installed on the lower part of the measuring device matrix, described double
Axis measurement vehicle is fixedly connected with the measuring device matrix.Twin shaft measurement vehicle include fixing piece, load-bearing part, the second wheel,
Displacement sensor and angular-rate sensor.The fixing piece is fixedly connected with the measuring device matrix, the fixing piece with
The load-bearing part connection, second wheel are installed on the lower part of the load-bearing part, and the angular-rate sensor is set to described
Load-bearing part, institute's displacement sensors are set to the center location of second wheel.Vehicle is measured by twin shaft to orbit
The virtual condition that simulation car body is run along rail can obtain displacement number by displacement sensor and angular-rate sensor respectively
Accordingly and then angular velocity data sentences displacement data processing acquisition linear velocity in real time according to angular speed and the ratio of linear velocity
The severity of the abrasion of broken rail road surface wave and hurt, Realtime Alerts when transfiniting.It can be obtained afterwards by accurate Processing Algorithm
Take the exact numerical of undulatory wear and hurt.Other features and advantages of the present invention will be illustrated in subsequent specification, also, portion
Divide ground as will become apparent from the description, or by implementing understanding of the embodiment of the present invention.The purpose of the present invention is excellent with other
Point can be achieved and obtained by structure specifically indicated in the written description, claims, and drawings.
Detailed description of the invention
Illustrate the technical solutions in the embodiments of the present application or in the prior art in order to clearer, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the knot of twin shaft measurement vehicle in raceway surface undulatory wear provided by the embodiments of the present application and hurt detection device
Structure schematic diagram；
Fig. 2 is the structural schematic diagram of raceway surface undulatory wear provided by the embodiments of the present application and hurt detection device；
Fig. 3 is the knot at another visual angle of raceway surface undulatory wear provided by the embodiments of the present application and hurt detection device
Structure schematic diagram；
Fig. 4 is the structural block diagram of raceway surface undulatory wear provided by the embodiments of the present application and hurt detection device；
Fig. 5 is the flow chart of raceway surface undulatory wear provided by the embodiments of the present application and hurt detection method.
110- twin shaft measures vehicle；111- fixing piece；112- load-bearing part；The second wheel of 113-；114- displacement sensor；
115- angular-rate sensor；116- press member；The first elastic mechanism of 117-；The second elastic mechanism of 118-；120- measuring device
Matrix；The first wheel of 130-；140- control circuit board；141- microprocessor；142- communication interface；143- power supply translation interface；
144- displacement sensor interface；145- angular-rate sensor interface；150- host computer；160- power supply.
Specific embodiment
Referring to Figure 1, Fig. 1 shows the structural schematic diagram of twin shaft measurement vehicle 110 provided by the embodiments of the present application, described double
It includes fixing piece 111, load-bearing part 112, the second wheel 113, displacement sensor 114 and angular-rate sensor that axis, which measures vehicle 110,
115.The fixing piece 111 is fixedly connected with the measuring device matrix 120, the fixing piece 111 and the load-bearing part 112
Connection, second wheel 113 are installed on the lower part of the load-bearing part 112, and the angular-rate sensor 115 is set to described hold
Holder 112, institute's displacement sensors 114 are set to the center location of second wheel 113.
Fixing piece 111 can specifically include three fixation holes, and fixing piece 111 is specifically fixed by fixation hole with measuring device
Connection.Fixing piece 111 is connect with load-bearing part 112, and the intermediate position of load-bearing part 112 is equipped with angular-rate sensor 115, carrying
The lower part of part 112 is equipped with the second wheel 113, and displacement sensor 114 is set to the center location of the second wheel 113.
Displacement sensor 114 is specially photoelectric encoder, for recording the displacement data of twin shaft measurement vehicle 110, angular speed
Sensor 115 is specifically as follows gyroscope, the angle-data of the angle offset for recording twin shaft measurement vehicle 110 itself.Photoelectricity
Encoder can pass through RS422 serial ports and control circuit board by pulse signal transmission data to control circuit board 140, gyroscope
140 are attached, and control circuit board 140 is attached with host computer 150 by RS232 serial ports.
It further includes press member 116 that twin shaft, which measures vehicle 110, and the press member 116 is arranged in load-bearing part 112 and fixing piece
Between 111, press member 116 is connect by the first elastic mechanism 117 with fixing piece 111, and press member 116 passes through the second bullet
Property mechanism 118 is connect with load-bearing part 112.First elastic mechanism 117 and the second elastic mechanism 118 are spring structure.
Raceway surface undulatory wear provided by the embodiments of the present application and hurt detection device further include 140 He of control circuit board
Host computer 150, displacement sensor 114 are connect with control circuit board 140 with angular-rate sensor 115, control circuit board
140 are electrically connected with host computer 150, refer to Fig. 4.
The control circuit board 140 includes microprocessor 141, communication interface 142,160 translation interface 143 of power supply, displacement
Sensor interface 144 and angular-rate sensor interface 145；Microprocessor 141 respectively with the communication interface 142, power supply 160
Translation interface 143, displacement sensor interface 144, angular-rate sensor interface 145 connect；
Institute's displacement sensors 114 are connect by institute's displacement sensors interface 144 with the microprocessor 141, described
Angular-rate sensor 115 is connect by the angular-rate sensor interface 145 with the microprocessor 141, the microprocessor
141 are connected to by 160 translation interface 143 of power supply with power supply 160, and the microprocessor 141 passes through the communication interface 142
It is connect with the host computer 150.Wherein, microprocessor 141 can specifically pass through RS232 serial ports and the upper calculating
Machine 150 connects.
Fig. 2 and Fig. 3 are referred to, the raceway surface undulatory wear and hurt detection device further include the first wheel 130, and first
Wheel 130 is installed on the lower part of measuring device body.
When the raceway surface undulatory wear and hurt detection device are moved along rail tread, the irregularity meeting of raceway surface
Cause the variation of the pitch angle of twin shaft measurement vehicle 110, the angular-rate sensor 115 that this variation is installed by twin shaft measurement vehicle 110
It measures to obtain in the form of angular speed, determines deformation index divided by the linear velocity of twin shaft measurement vehicle 110 using angular speed, and will become
Shape index is compared with preset threshold, then carries out acousto-optic electric alarm more than threshold value.
Displacement sensor 114 and the collected data of angular-rate sensor 115 can be connect by control circuit board 140
It receives, synchronization process and is communicated with host computer 150,150 pairs of upload data of host computer are acquired and save,
Pretreatment, real-time display, early warning and accurate processing.
Fig. 2 and Fig. 3 are referred to, twin shaft measurement vehicle 110 is mounted on the raceway surface wave on rail by fixation hole
The two sides of wave abrasion and hurt detection device, installation site can guarantee that twin shaft measurement vehicle 110 operates on rail tread, double
Axis measures vehicle 110 as measuring device matrix 120 is in rail tread movement, and contacts always with rail tread.Power supply 160, control
Circuit board 140 processed is built in measuring device matrix 120 with host computer 150.After device starting, host computer
150 carry out the observation data acquisition of photoelectric encoder and gyroscope by control circuit board 140, and saved, handle with it is defeated
Out.
Fig. 1 shows the structure of twin shaft measurement vehicle 110, and twin shaft measures trolley using gyroscope and photoelectric encoder as core
Heart sensor, the structure of former and later two the second wheels 113 may insure to convert survey for the undulatory wear of rail tread when operation
Measure the variation of equipment posture.Press member 116 can guarantee that twin shaft measurement vehicle 110 and rail tread are always maintained at contact condition.
Raceway surface undulatory wear and hurt detection device can simulate the virtual condition that car body is run along rail when working, detect at this time
The angular velocity information of linear velocity and the gyroscope output of opinion contains the irregularity of rail tread, it is possible thereby to obtain undulatory wear
Information.Present invention take advantage of that the characteristic that photoelectric encoder velocity error does not accumulate at any time, overcomes conventional gyro and adds
The shortcomings that velocity error dissipates when the inertial navigation system detection of speedometer combination, and avoid when being detected using accelerometer
To the direct linear impact of detection sensor.
Fig. 4 is referred to, Fig. 4 shows control circuit board 140 and twin shaft measurement vehicle 110 and host computer 150 carries out
Interactive module diagram, angular-rate sensor interface 145 are met asynchronous serial RS422 electric interfaces standard, are answered using principal and subordinate
Mode is answered, the trigger pulse of host computer 150, output angular velocity data to 150,1 MAX3490 of host computer are received
Difference transceiving chip, operating voltage 3.3V are Transistor-Transistor Logic level interface with 141 interface of microprocessor.Displacement sensor interface 144
It is Transistor-Transistor Logic level with 141 interface of microprocessor using one four tunnel differential received chip AM26LV32IDR, operating voltage 5V
Interface.
Microprocessor 141 use 1 STM32F410 chip, be 32 high-performance MCU, integrated universal I/O port, UART port,
12 ADC, 16 bit timing devices, the modules such as SPI, system dominant frequency is up to 100MHZ.
160 translation interface 143 of power supply uses 1 URA2405 module, inputs 24V, exports as positive and negative 5V.Using 1
TPS7333Q chip inputs positive 5V, exports the 3.3V that is positive.For each operational module of this plate, twin shaft measures the photoelectric encoder of trolley
It powers with gyroscope.
Power supply 160 includes lithium battery and route protection two parts.Lithium battery capacity can be 24000mah, output voltage
For 25.9V, charge and discharge overvoltage crowbar is carried.Lithium battery anode output 1 cartridge fuse of series connection, cartridge fuse voltage rating
250V, rated current 10A, for exporting overcurrent protection.
Refer to Fig. 5, Fig. 5 shows raceway surface undulatory wear provided by the embodiments of the present application and hurt detection method
Flow chart specifically comprises the following steps:
Step S110 obtains the collected displacement data of displacement sensor 114.
Step S120 obtains the collected angular velocity data of angular-rate sensor 115.
After 150 initialization system of host computer, dress is detected to the raceway surface undulatory wear and hurt of Rail Surface
Set carry out data acquisition, host computer 150 obtain in regular intervals the collected displacement data of displacement sensor 114 with
And the collected angular velocity data of angular-rate sensor 115, host computer 150 keep and pre-process to these data.
Working state of system and rail tread geological information are displayed in real-time on display interface.
Step S130 carries out processing to displacement data and obtains linear velocity data, obtains the angular velocity data and the line
First ratio of speed data.
Detailed process is as follows for processing of the host computer 150 to data:
The angular velocity information of gyro output is needed by drift correction and scale factor error correction；Photoelectric encoder output
Data there may be skid and it is other due to caused by exceptional value, need to carry out fault diagnosis and substantially correct.It realizes
Principle is as follows:
A. Modelling of Random Drift of Gyroscopes computation model:
Wherein, ε0For gyroscope constant value zero bias, A is the amplitude of periodic component；F is the frequency of periodic component, θ0For initial phase
Position, k are trend term coefficient,For coloured noise, Δ (t) is white Gaussian noise.
Coloured noiseIt can be fitted using first-order autoregression process, model are as follows:Its
In, T is correlation time, ωrTo drive white noise, variance isδ2For single order markoff process initial variance.
B. gyroscope scale factor Correction of Errors: establishing the thermal compensation model of constant multiplier, eliminates temperature in constant multiplier
Influence.
Constant multiplier thermal compensation model are as follows: K=K0+K1(Tp-Tr)
In formula, TrAnd TpRespectively reference temperature and Current Temperatures, K0For TrCalibration factor under the conditions of temperature, K1For
Penalty coefficient.
C. photoelectric encoder fault diagnosis: establishing regression model according to the output of n-hour before photoelectric encoder first, forecasts
The photoelectric encoder output valve at current time.Then compare the real output value y and predicted value of photoelectric encoderBetween difference
Away from just taking output valve less than threshold value Δ, otherwise take predicted value.
Regression model are as follows: yi=β Ti+εi
Wherein, β is corresponding coefficient, εiFor constant, can be fitted to obtain by the data at preceding N=3 moment.yiFor TiWhen
Carve corresponding value.Current time T is brought into the predicted value at available current time.
Choosing for threshold value Δ will be determined according to measurement noise of vehicle travel speed and photoelectric encoder etc..
Detection device can cause attitudes vibration, the angle of gyroscope output due to the presence of irregularity when operating in Rail Surface
Speed values and the linear velocity that equipment is run and related with Rail Surface geometry state, such as when Rail Surface has undulatory wear
When.Speed and amplitude are certain, and wavelength is bigger, and angular speed is smaller, and one timing of speed and wavelength, amplitude is bigger, and angular speed is bigger.
The formula calculated in real time are as follows: dr=ω/v (1)
Wherein, ω is the operation angular speed of detection device, is exported by gyro, unit °/s.V is the operation line of detection device
Speed is exported by photoelectric encoder, unit m/s.Dr is proportionality coefficient, unit °/m, it can be seen that its practical significance be unit away from
From upper angle change, value is bigger, represents bigger to the impact of car body, it is possible to be reported in real time by the numerical value of dr
It is alert.
Step S140 judges whether the displacement data is more than first threshold, if so, thening follow the steps S150.
If the linear velocity data are less than first threshold, alarm signal is not issued.
To avoid formula (1) the calculated result distortion in static or linear velocity very little from needing Taxonomic discussion:
Speed absolute value is less than given threshold vmin(vmin> 0) when, it is believed that it remains static, does not do at this time pre- in real time
It is alert；Wherein, threshold value vminChoose the propagation law of error, detection when calculating in conjunction with the precision of photoelectric encoder, formula (1)
External interference factor the etc. when requirement and work of precision.
Speed absolute value is greater than threshold value vmin(vmin> 0) when, it is believed that it is kept in motion, calculates ratio using formula (1)
Coefficient d r is as the index for measuring undulatory wear and hurt severity, the irregularity situation of real-time report rail tread；Wherein
Undulatory wear and hurt severity use different brackets.
Step S150 judges whether first ratio is more than second threshold, if so, thening follow the steps S160.
According to formulaObtain undulatory wear and deformation index
Relationship, wherein N is deformation index,For angular speed, v is linear velocity, and A is the amplitude of undulatory wear, and λ is undulatory wear
Wavelength, l are tool length.It, can be by right by above formula it can be concluded that the spectral characteristic of deformation index N is as undulatory wear
Deformation index analyze the spectral characteristic of determining undulatory wear, then restores to initial count value.
The physical significance of deformation index is attitudes vibration of the measuring device in unit distance caused by undulatory wear, can be quasi-
The true severity for reflecting undulatory wear, the size of deformation index only with Rail Surface smoothly whether it is related, eliminate speed
The influence of degree.
Step S160 issues alarm signal.
Deformation index of the ratio of angular velocity and linear velocity as Rail irregularity is calculated, when testing result transfinites,
Carry out the acousto-optic electric alarm of real-time on-site.
After step S160, the method also includes:
The undulatory wear and hurt value of primary Calculation rail tread in such a way that dead reckoning and chord measurement combine, so
The true undulatory wear of rail tread and hurt value are gone out using liftering restoring method inverse afterwards, finally ground according to calculated wave
Consumption and hurt value assess Rail Surface state.
The wherein formula of dead reckoning are as follows:I be sampled point serial number (i=1,
2...n)
Wherein, (xi, yi) and (xi+1, yi+1) be rail at ith sample point and i+1 sampled point respectively to mileage and
Corresponding vertical deviation, dsiAnd θiIt is the mileage difference between ith sample point and i+1 sampled point and inclination angle.Selected string
During calculating after length, each chord length calculates the attitude angle θ of starting point1=0.
Dead reckoning and chord measurement calculate the versed sine value under different chord lengths, belong to short distance relative measurement mode, can be with
It effectively prevent the error of sensor observation data largely to accumulate even to dissipate, to improve observation error.
The frequency size of deformation index is only unrelated in relation to and with speed with undulatory wear wavelength, can extract wavelength accordingly
Information, and the undulatory wear information of dead reckoning is restored, eliminate the influence that transmission function is not 1.
The raceway surface undulatory wear and hurt detection device use two-wheel pivoting structure, by undulatory wear and hurt
Height variation in this track direction of advance is converted into the variation of measuring device posture, avoids vertical tyre tread direction irregularity
To the direct linear impact of sensor.
The raceway surface undulatory wear and hurt detection device use two-wheel pivoting, and are furnished with pressure shock-absorption device,
Guarantee that detection device fits closely rail tread always and has certain attitudes vibration freedom degree.
The raceway surface undulatory wear and hurt detection device are by the way of gyroscope and photoelectric encoder combination, measurement
The detection device angular speed and linear velocity for running on rail tread, use for the data characteristics of gyroscope and photoelectric encoder
Corresponding error processing method, the rough error including establishing gyroscopic drift and constant multiplier model and photoelectric encoder measured value
Detection means.
The measuring device angular speed for running on rail tread is utilized in the raceway surface undulatory wear and hurt detection device
For ratio with linear velocity as deformation index, physical significance is measuring device caused by undulatory wear and hurt in unit distance
On attitudes vibration, the severity of undulatory wear and hurt can accurately be reflected, while deformation index size is only and rail
Uneven surface is related, eliminates the influence of speed.
The side that the raceway surface undulatory wear and hurt detection device are combined using angular-rate sensor and displacement sensor
Formula, measurement runs on the detection device angular speed and linear velocity of rail tread, and reappears rail wave using dead reckoning algorithm
Abrasion and hurt.
The raceway surface undulatory wear and hurt detection device run on rail tread using displacement sensor acquisition and measure
The linear velocity of device, error when avoiding using acceleration transducer by integral acquisition speed position, which is constantly accumulated, even to be dissipated
The phenomenon that, it ensure that very high short distance relative accuracy.
The raceway surface undulatory wear and hurt detection device be deduced deformation index and rail tread undulatory wear and
Relational expression between hurt, and be further processed according to result of this relationship to dead reckoning, effectively eliminate transmitting
Function is not 1 influence.
It includes twin shaft that the embodiment of the present application, which provides a kind of raceway surface undulatory wear and hurt detection device, described device,
Vehicle 110, measuring device matrix 120, the first wheel 130 are measured, first wheel 130 is installed on the measuring device matrix
120 lower part, the twin shaft measurement vehicle 110 are fixedly connected with the measuring device matrix 120.The twin shaft measurement vehicle 110 wraps
Include fixing piece 111, load-bearing part 112, the second wheel 113, displacement sensor 114 and angular-rate sensor 115.The fixing piece
111 are fixedly connected with the measuring device matrix 120, and the fixing piece 111 is connect with the load-bearing part 112, second vehicle
Wheel 113 is installed on the lower part of the load-bearing part 112, and the angular-rate sensor 115 is set to the load-bearing part 112, institute's rheme
Displacement sensor 114 is set to the center location of second wheel 113.Vehicle 110 is measured by twin shaft to orbit simulation
The virtual condition that car body is run along rail can be displaced respectively by displacement sensor 114 and angular-rate sensor 115
Data and angular velocity data, then calculate linear velocity, according to the ratio real-time judge Rail Surface of angular speed and linear velocity
The severity of undulatory wear and hurt.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
Specific work process, no longer can excessively be repeated herein with reference to the corresponding process in preceding method.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place ginseng
See the part explanation of embodiment of the method.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through it
Its mode is realized.The apparatus embodiments described above are merely exemplary, for example, the flow chart and block diagram in attached drawing are aobvious
The device of multiple embodiments according to the application, architectural framework in the cards, the function of method and computer program product are shown
It can and operate.In this regard, each box in flowchart or block diagram can represent one of a module, section or code
Point, a part of the module, section or code includes one or more for implementing the specified logical function executable
Instruction.It should also be noted that function marked in the box can also be attached to be different from some implementations as replacement
The sequence marked in figure occurs.For example, two continuous boxes can actually be basically executed in parallel, they sometimes may be used
To execute in the opposite order, this depends on the function involved.It is also noted that each of block diagram and or flow chart
The combination of box in box and block diagram and or flow chart can be based on the defined function of execution or the dedicated of movement
The system of hardware is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each functional module in each embodiment of the application can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) execute each embodiment the method for the application all or part of the steps.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.It needs
Illustrate, herein, relational terms such as first and second and the like be used merely to by an entity or operation with
Another entity or operation distinguish, and without necessarily requiring or implying between these entities or operation, there are any this realities
The relationship or sequence on border.Moreover, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of raceway surface undulatory wear and hurt detection device, which is characterized in that described device includes twin shaft measurement vehicle, surveys
Measure equipment matrix, the first wheel, first wheel is installed on the lower part of the measuring device matrix, the twin shaft measurement vehicle with
The measuring device matrix is fixedly connected；
Twin shaft measurement vehicle includes fixing piece, load-bearing part, the second wheel, displacement sensor and angular-rate sensor, described
Fixing piece is fixedly connected with the measuring device matrix, and the fixing piece is connect with the load-bearing part, the second wheel installation
In the lower part of the load-bearing part, the angular-rate sensor is set to the load-bearing part, and institute's displacement sensors are set to described
The center location of second wheel.
2. the apparatus according to claim 1, which is characterized in that the twin shaft measurement vehicle further includes press member, described to apply
Splenium part is connect by the first elastic mechanism with the fixing piece, and the press member passes through the second elastic mechanism and the carrying
Part connection.
3. the apparatus according to claim 1, which is characterized in that described device further includes control circuit board, and the displacement passes
Sensor and angular-rate sensor are electrically connected with the control circuit board.
4. device according to claim 3, which is characterized in that described device further includes host computer, the upper meter
Calculation machine is electrically connected with the control circuit board.
5. device according to claim 4, which is characterized in that the control circuit board include microprocessor, communication interface,
Power supply translation interface, displacement sensor interface and angular-rate sensor interface；Microprocessor respectively with the communication interface, electricity
Source translation interface, displacement sensor interface, the connection of angular-rate sensor interface；
Institute's displacement sensors are connect by institute's displacement sensors interface with the microprocessor, and the angular-rate sensor is logical
It crosses the angular-rate sensor interface to connect with the microprocessor, the microprocessor passes through the power supply translation interface and electricity
Source connection, the microprocessor are connect by the communication interface with the host computer.
6. device according to claim 5, which is characterized in that the microprocessor by RS232 serial ports with it is described upper
Computer connection.
7. the apparatus according to claim 1, which is characterized in that the angular-rate sensor is gyroscope.
8. the apparatus according to claim 1, which is characterized in that institute's displacement sensors are photoelectric encoder.
9. the apparatus according to claim 1, which is characterized in that described device further includes carrying out bar, the implementation bar setting
In the surface of the measuring device matrix.
10. the apparatus according to claim 1, which is characterized in that the fixing piece passes through fixation hole and the measuring device
Matrix is fixedly connected.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828068A (en) * | 2018-01-18 | 2018-11-16 | 武汉汉宁轨道交通技术有限公司 | Raceway surface undulatory wear and hurt detection device and method |
| EP3908381B1 (en) * | 2019-01-11 | 2024-10-23 | Universal City Studios LLC | Drop detection systems and methods |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828068A (en) * | 2018-01-18 | 2018-11-16 | 武汉汉宁轨道交通技术有限公司 | Raceway surface undulatory wear and hurt detection device and method |
| EP3908381B1 (en) * | 2019-01-11 | 2024-10-23 | Universal City Studios LLC | Drop detection systems and methods |
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