CN1100310C - Tracking collection for various information source time domain samples of homogeneous and ordered dynamic information (groups) clusters - Google Patents
Tracking collection for various information source time domain samples of homogeneous and ordered dynamic information (groups) clusters Download PDFInfo
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- CN1100310C CN1100310C CN 94113183 CN94113183A CN1100310C CN 1100310 C CN1100310 C CN 1100310C CN 94113183 CN94113183 CN 94113183 CN 94113183 A CN94113183 A CN 94113183A CN 1100310 C CN1100310 C CN 1100310C
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Abstract
The present invention provides a novel approach for dynamic and on-line information acquisition through a tracking sampling method for signals from n similar sequential information sources in a moving machine. M sensors are arranged in a detection area beside the moving path of information sources. After being processed, detected signals are transferred to the multi-channel input of each change-over switch corresponding to each information source A1. According to characteristic parameters of a target, a target movement recognition and control system can determine the time and the time sequence of the target and each information source A1 to each sensor, control the change-over switch to track and intercept each input signal, separate and output the signal corresponding to each information source A1 and obtain complete time domain sample of each information source for diagnostic analysis and research.
Description
The invention belongs to tracking sampling to the movable information source signal, the tracking collection that particularly relates to orderly moving each information source sample of signal of information cohort similar in running (operation) machine (machinery) with separate.
Any the simplest detection technique all be unable to do without this link of the information of obtaining.Signals collecting is the basis of modern industry detection technique, and particularly dynamic or online detection more depends on carries out accurate and effective and complete sampling to signal.In the prior art, for example install " infrared axle temperature annunciator " in the railway both sides, " bearing acoustic detector " detects the vehicle bearing temperature or whether noise exceeds standard, in the hope of judging whether bearing has fault, this is the example that detects with non-airborne single-sensor Information Monitoring, they can only be by meeting with a small amount of amplitude information in acquired information source at random, do the simple assessment that detects, the complete time domain samples of more information content can not be obtained to contain, thereby deep analysis and research and diagnosis can not be done; Most dynamic or online detection is to finish one dimension (as temperature) or multidimensional (as vibrating: contain amplitude, frequency, modulation etc.) information acquisition at certain single information source in the running machinery with airborne single-sensor is installed, but, the information truth degree is reduced because of motion may cause information amplitude loss or additional modulation distortion; Inventor's invention, " trouble testing technique with multiple sensors, resonance and demodulation " (patent No. 90105568.9) of in " the rolling stock wheel set bearing does not decompose auto-check system ", using successfully, with onboard multi-sensor single movable information source (wheel centering one cover bearing) carried out multi-faceted parallel sensing, signal to each sensor is rationally handled stack, comprehensive one-tenth one individual signals is used for analyzing and diagnosing, this onboard multi-sensor information acquisition is suitable for handling single detected object (information source) because the information amplitude loss that motion causes, additional modulation distortion etc. is unfavorable for the problem of information processing, but can not solve in the same running machinery roughly the same, detection [collection] problem of orderly each information of a plurality of moving information source [information cohort].Airborne sensor can not solve signals collecting problem identical in another machine.Realization is a wide application and real problem to be solved is arranged in the engineering to roughly the same orderly each signals sampling of movable information group in the similar machine.Signal sampling as to each the vehicle wheel component On-line Fault diagnosis of the rolling stock that passes through the time, ppopeller jet is tested each paddle shaft to the vibration signal tracking sampling, and the signals collecting in many detection techniques such as signal sampling of each planet wheel fault of planetary transmission all can belong to this problem.
Task of the present invention can be summed up as: realize n similar, orderly moving information source [information cohort A in the running machine
1～A
n] each information source A
iThe tracking collection of complete signal time domain samples with separate.Information source A wherein
iIn i=1～n, n is a natural number.
Technical scheme of the present invention is as follows:
Sampling system contains detecting sensor 1, signal processor 2, and target and motion are followed the tracks of change-over switch 4 and control system 5 with other system 3.At orderly ensemble A
iIn the other one section specific surveyed area range L of motion path, lay m [group] sensor, signal to be checked is surveyed felt.It can be touch sensor or non-contacting sensor that these sensors are looked feelings, as ultrasonic, sonar, vibration, impact, piezoelectricity, strain, pyroelectricity, infrared, electric capacity, current vortex, magnetic resistance, radiation transducers or the like.After the treated device of signal of m sensor output is handled, output signal to and each information source A
iEach corresponding change-over switch 4
iInput multiplexer.Target and Motion Recognition system, control system are carried out target and Motion Recognition measurement according to the distinctive characteristic parameter of target, determine each information source A
iArrive each sensor l
jBe subjected to the moment and the sequential in sensillary area territory, control its switch 4 is followed the tracks of each input signal and is switched in good time, thereby correctly intercepting separates and corresponding each the information source A of output
jCorresponding signal O
jFor record or storage, as deliver to computer A/D interface; Sensor L wherein
jIn j=1～m, m is a natural number.
The selection of detecting sensor and layout thereof and design:
Determining of detector segments length L, be the distribution ranges of a plurality of detecting sensors along the information source motion path, should be according to acquired signal integrality principle, promptly in the message sample of gathering, also can obtain specifying the data of number for the signal of low-limit frequency, lose very with unlikely generation low frequency signal.For example, the low-limit frequency information of need gathering in the information source is every to produce a signal through distance S, for ease of analyzing this signal characteristic, just need adopt sample in contain that K is individual (to get 2 at least, be preferably 4～10) above-mentioned low frequency signal, then the detecting sensor distribution range should have L 〉=KS.
The sensor distribution density is selection or the design of spacing H, then should consider by following each point;
One, meet signal steadiness criterion: promptly change-over switch is switched the corresponding signal O of back output to the treated signal trace of each sensor
i, should be in whole detection time domain basic complete sum is stable, can reflect this information source A by actual response
iInformation.Just should not switch the output signal amplitude and fall distortion significantly and produce additional modulation phenomenon or lose the information of certain section time domain because of the information source that detected gradually produces from certain detecting sensor.According to the (x between radial regions that felt at sensor
0, x
0) interior its output amplitude response F and the funtcional relationship apart from x of sensor apart from information source along its direction of motion, for being similar to usefulness
The permanent output type sensor of this class that F=f (x)=1 expresses maybe can be similar to usefulness
F=f (x)=1-|x|/x
0The linear change output type sensor of expressing should be got transducer spacing respectively and make and satisfy H≤2x
0, H≤x
0This is convenient to adopt overlap-add procedure to satisfy the steadiness requirement for the latter.
For example work as H=x
0The time, the signal amplitude of every adjacent two sensors has respectively:
F
1＝f(x)＝1-|x|/x
0，
F
2=f (x)=1-|x
0-x|/x
0, then
F
1+F
2＝1-|x|/x
0+1-|x
0-x|/x
0＝1，
Can make to satisfy with two overlap-add procedure easily and be output as permanent stationary value.
Two. if two sensors too vicinity can cause the phase mutual interference, the minor increment of permission is L
0, then the two sensors spacing should be greater than L
0, H＞L is arranged
0
Three. for accurately isolating the information of each information source, promptly adjacent two nearest information source (spacing L
1) signal, should not sneak into adjacent sensor mutually, promptly should not sneak in the signal of the pairing change-over switch of this two information source output yet, L should be arranged
1〉=2x
0
For the detected object of determining, L
1Determine, therefore should hold water and select the design sensor and be subjected to radius X between sensillary area
0And layout satisfies above-mentioned requirements.
In sum, in the ordinary course of things, the selection of sensor and layout thereof and design, should satisfy for permanent output type sensor:
Sensor distribution range: L 〉=KS,--(1)
Sensor performance restriction: H≤2X
0,--(2)
Sensor disturbance restriction: H 〉=L
0,--(3)
Information source spacing restriction: L
1〉=2X
0,--(4)
Should satisfy for linear change output type sensor:
Sensor distribution range: L 〉=KS--(1)
Sensor performance restriction: H≤X
0--(2)
Sensor disturbance restriction: H 〉=L
0--(3)
Information source spacing restriction: L
1〉=2X
0--(4)
The present invention can not install under the situation of airborne sensor and instrument and equipment, has realized the simple or multidimensional sophisticated signal that each information source in the in order moving information cohort similar in the target produces is separated, and has collected its complete signal time domain samples.Information acquisition for the dynamic and online detection of a large amount of movable machineries on the engineering, a kind of effective way is provided, not only sampling fast, and can save the spending of purchasing airborne checkout equipment in a large number, do not influence the normal operation of machine again and unlikelyly destroy its working condition because of the installation and measuring sensor, gathered and isolated the very abundant sample of signal of information simultaneously, be convenient to use modern high technology and analyze and research, obtain measuring more reliably beneficial effects such as diagnostic result.For guaranteeing the engineering equipment safe and reliable operation, prevent the equipment breakdown loss and increase economic efficiency all significant.
Description of drawings:
Fig. 1: the solution of the present invention block diagram.
Fig. 2: to the information acquisition block diagram of each vehicle wheel component fault diagnosis of train of passing through.
Fig. 3: ppopeller jet is tested each blade vibration signal tracking sampling block diagram.
Fig. 4: the tracking sampling block diagram of planetary reducer planet wheel failure message.
Fig. 5: locomotive wheel rim looseness fault tracking sampling block diagram.
Fig. 6: train wheel wheel hub crack fault information on-line tracing sampling block diagram.
Fig. 7: the sampling block diagram of vehicle wheel footpath and out-of-roundness detection signal.
1: detecting sensor, 2: signal processor,
21: two superimposers, 22: frequency-modulated generator,
23: the frequency discrimination wave detector,
3: target and Motion Recognition system,
31: the front end circuit of target and Motion Recognition system.
4: follow the tracks of change-over switch, 5: control system,
51: the interface that tests the speed of control system,
52: the control interface of control system, 53: the A/D interface of control system.
Below in conjunction with accompanying drawing some embodiment are further explained.
Railway locomotive and vehicle have 2 couples or 3 couples of wheel A on each bogie
1, A
2, A
3Rows of cars then have the such information source of many groups.In order to obtain the sample of signal of the low frequency source of trouble that transmits on the wheel,, generally need on a section of railway track track of 4～7 times of circumferences of the wheel or the roadside sensor installation as the fault-signal of axle bearing retainer.According to existing vehicle and spacing, transducer spacing is generally got H=1～1.45 and meter is advisable, and it is to more than 20 surplus in the of ten that required sensor is counted m=L/H.Really a sensor 3 is installed on the road side of set a distance more than the vehicle in above-mentioned detecting sensor the place ahead is long, be used for target and Motion Recognition, it is experienced wheel and arrives, each wheel produces a pulse by this sensor, handle the interface 51 that tests the speed of being defeated by control system computing machine 5 by front end circuit 31, with software determine each wheel by this sensor the time interval and according to the similarity of the corresponding model wheel of vehicle spacing of storing in time interval sequence and the Computer Database, the identification vehicle is calculated the speed of a motor vehicle and then is calculated each wheel with the between-wheel spacing of determining and the above-mentioned time interval again and arrives each detecting sensor 1
jThe moment, computer control interface 52 Output Tracking Control codes remove corresponding each information source (wheel) A of control
iEach change-over switch 4, change-over switch can be by multi-channel analog data selector such as CD4051, LF13508, formations such as CD4067, the controlled in good time switching of each change-over switch correctly intercepts through signal processor 2
jThe multiline message of input and output are as each information source A
iThe part of sample of signal is passed by wholely when being subjected to the sensillary area section when this information source, and corresponding change-over switch just obtains and export the A/D interface 53 of complete time domain samples signal Oi of this information source to computing machine.
Number about change-over switch: for especially big orderly ensemble, be listed as the train of forming by tens of joint railway carriages as present embodiment one, 2 pairs or 3 pairs of vehicle wheel components are arranged in every joint railway carriage, information source sum n is up to hundreds of more than, needn't be provided with the change-over switch number that is equal to information source sum n, only need to be provided with and to be positioned at the identical change-over switch number of detector segments internal information source number (being illustrated as 6) simultaneously.
About signal Processing: except that each sensor output signal of reply carries out necessary pre-process and the amplification with signal processor 2, in signal processor 2, also superimposer 21 can be set, look feelings and the signal of two (as Fig. 2), three or more a plurality of adjacent detecting sensor is made up successively be superimposed as the multichannel input port that mono signal is delivered to change-over switch 4.Do like this to help to eliminate the detection signal of a sensor can not complete detection in the information source all component information and help the output signal constant.Present embodiment, wheel turn over and will experience 2 or 3 sensors a week and just can carry out every adjacent two signal combination stack or the stack of adjacent three signal combination.See Fig. 2.
For preventing that ppopeller jet issuable resonance under some rotating speed from damaging, axial vibration when needing to detect the screw blade running, traditional method is to paste foil gauge to detect vibration stress on blade, this will guide to signal with electrical feedthrough (electric brush slip ring etc.) and use strain-ga(u)ge measurement on the casing that does not rotate again from the propeller shaft that rotates, the strain parameter can not directly characterize vibration, electrical feedthrough very easily damages again, but also changes the operating mode of blade.Can use the present invention and realize present embodiment as follows.On engine testsand, corresponding blade blade tip running circumference rear, the pole plate of the capacitance type sensor that the uniform installation one row's number of noncontact is identical with number of blade n (being illustrated as three leaves), all insulate between every section pole plate and with propeller and the earth (casing), and make the electric capacity of the earth (casing) as far as possible little, electric capacity between two adjacent pole plates should be less than the electric capacity of pole plate and propeller, the xsect of pole plate should approach as far as possible and be streamlined, to reduce it to the propeller influence on flow field, every section pole plate 1 inserts a frequency-modulated generator 22 of installing nearby with the electric capacity that propeller constitutes, blade all is directly proportional with propeller vibration displacement amount with the electric capacity of pole plate and the vibration frequency deviation of frequency-modulated generator 22, the frequency-modulated wave of oscillator 22 is exported the voltage that is proportional to blade vibration with 23 demodulation of frequency discrimination wave detector.Oscillator 22, detuner 23 constitutes signal processor 2.Establish a sensor 3 that is used for target and Motion Recognition at the head place of a pole plate, send a synchronizing signal during by this sensor at each blade and give control system 5, control system 5 is that a n who is made of MC14516 advances counter, it is exported n and patrols the ring sign indicating number, then export 3 as three leaf propellers and patrol the ring sign indicating number, be control data line D0 and D1,1 (D0=1 always in turn appears after revolution is come a slice blade, D1=0), 2 (D0=0, D1=1), 3 (D0=1, D1=1) data, when entering a tacho-pulse again, counter shape is D2=1 (promptly counting down to 4) with carry, MC14516's " presetting control end " PE is received in the hopping edge of this carry pulse, end A is preset in control, B, C, D, make counter set again by putting the number end, only realize the work 1 that goes round and begins again without computing machine with counter, 2, the function of 3 countings, be used for controlling 3 tracking change-over switches 4 of corresponding 3 blades, change-over switch can be selected multi-channel analog data selector such as CD4051 for use, and corresponding the first, the second, the 1st of three change-over switch input ports of the 3rd blade, 2,3 passages should be distinguished successively with 1,2,3,2,3,1,3,1,2 sensor restituted signals connect, blade rotates a circle, and change-over switch is switched three times, and that each change-over switch is exported is the vibration signal O of corresponding a slice blade
1, O
2, O
3, realized the tracking sampling of propeller vibration signal.See Fig. 3.
Its planet wheel of planetary reducer (being usually used in the deceleration between aeromotor and the propeller) also has revolution in rotation, because of the touch sensor on the casing being transmitted the ability extreme difference of impact signal, fault detect is very difficult.And conventional art also is difficult to distinguish, and which planetary gear has fault in each planet wheel.Using present embodiment of the present invention realizes as follows: on the circumference of the corresponding planet gear axis operation of reduction case, press planetary gear and count the uniform installation m=n sonac 1 of n (diagram n=6), impact ultrasound emission information in order to the capable gear distress that impression is aimed at, axle head at a planetary gear (as A1) is coated reflectorized material, in a Ultrasonic Detection sensor one photoelectric reflection formula sensor 3 is installed nearby in addition, in order to detect the arrival of planetary gear A1, the interface 51 that tests the speed of computing machine 5 is delivered in the mark pulse that produces, measure the planetary gear revolution cycle with software, calculate the moment that each planetary gear arrives each sensor 1, by control interface 52, in good time control its switch 4 is with the signal O of in good time intercepting and corresponding each planetary gear of output
iTo A/D interface 53.See Fig. 4.
On the wheel of locomotive rim is housed, be to use the pressure sintering suit, become flexible during rim uses and to cause major accident, therefore often need check, inspection commonly used be by manually hit with a hammer rim with distinguish listening clear and melodious, overcast have with differentiation trouble-free, be subject to human factor influence, and rim may be local loosening, people's ear is differentiated and is difficult to accurately and reliably.
Using the present invention realizes the loosening mode that detects of rim as follows: the bump when utilizing cartwheel roll to cross two sections rail seams, on the highway section of containing 4～8 lengths of rail, facing to every lengths of rail seam crossing sound transducer 1 is installed on the side, road.Or on the middle part rail level of the long rail section of one section ad hoc railway carriage more than two times,, offer little V-type notch every 1/4～1/8 distance of taking turns girth, corresponding each notch position is provided with a sound transducer 1; Determine the other sensor 3 of adorning of track of distance in detection zone the place ahead, the detection wheel is come, its signal is handled the interface 51 that tests the speed to computing machine 5 through front end circuit, determine the time interval of each wheel by sensor 3 with software, the identification vehicle is measured the speed of a motor vehicle, calculate the moment that each wheel arrives each detecting sensor 1, computer control interface 52 Output Tracking Control codes, each change-over switch 4 of corresponding each the information source Ai of control is followed the tracks of the multiple signals of intercepting from signal processor 2 in good time, output O
iTo computer A/D interface 53.See Fig. 5.
Alterante stress and material quality defective during because of operation, hub for vehicle wheel inside and outside surface can crack, crack propagation may produce bulk and peel off and jeopardize safety, prior art is to this crack detection, static or dynamic all is that off-line adopts method of detection to carry out, such as magnetic powder inspection, fluorescent flaw detection, X ray, magnetic resistance, current vortex flaw detection etc.One row passenger vehicle has nearly 200 wheels, and it is pretty troublesome so detecting.
It is similar with embodiment 1,4 to the wheel hub crack detection to use the invention process, adopts identical system and step to carry out, and no longer repeats, but following characteristics are arranged:
1, applying detection sensor 1 should be the sensor that can carry out inner carrying out flaw detection as this classes such as X ray, current vortex, magnetic resistance, installs by its installation requirement.
2, the present invention has H≤2x to sensor placement
0, H 〉=L
0Requirement.Work as L
0＞2x
0The time, this sensor placement requires certainly will be difficult to satisfy, and this class problem may appear in above-mentioned these some sensors.Can adopt suitable expansion detector segments, corresponding expansion transducer spacing carries out the packet segmentation layout to sensor, and the head and the tail sensor is broken uniform between the section group, appropriate dislocation is rationally compiled whole continued access to each sensor signal at last and is become can reflect time domain samples O true sequential, complete
iCan detect 15 ° of wheel hub scopes on the wheel as each detecting sensor 1, in order the omission district not occur, should the wheel girth stretch rail district in uniform 24 sensors, be one of per 15 ° of arc length, the sensor meeting phase mutual interference of gathering like this, detection segment can be expanded to 3 times of wheel girths, sensor is divided into 3 groups, 8 of every components, the 1st group 1-1～1-8 sensor is distributed in first section by one of 45 ° of arc length, the 2nd, each 8 one of also equal 45 ° of arc length of sensor of the 3rd group are distributed in second respectively, in the 3rd section, but 2-1 and 1-8 sensor, 3-1 and 2-8 sensor its spacing are 30 ° of arc length.Press 1-1,3-2,2-2,1-2,3-3,2-3,1-3,3-4,2-4 at last ... 1-8,3-1,2-1 compile whole continued access signal.See Fig. 6.
Embodiment 6, the sampling of vehicle wheel footpath and out-of-roundness detection signal
Will detect wheel diameter and circularity in the maintenance process of wheel, commonly used is manually to use slide calliper rule that vehicle wheel is directly done measuring wheel footpath and out-of-roundness or using other method of multi-angle, but all quick and convenient inadequately.Can finish each vehicle wheel footpath and the out-of-roundness passed through continuously as follows detects, be equivalent in a segment length above the straight rail of 0.5 wheel circumference, with the rail level is zero reference, on the height H greater than bull wheel footpath, the wheel tread of m (diagram m=6) its below of energy measurement of uniform installation is to the sensor (1) (wheel is H-R directly) of the vertical range R of sensor.2 wheels can only be arranged on the rail of half circumference of the wheel, therefore change-over switch only need be established 2～3, do not establish the sensor 3 and the interface that tests the speed in the target of present embodiment and the Motion Recognition system, scan by the output of computing machine 5 and corresponding software by 4 pairs of detecting sensors 1 of control interface 52 control its switch, computer A/D interface 53 is received in the output of change-over switch 4, sensor signal to the change-over switch tracking lock is measured, when finding that certain has the close information of wheel as No. 1 sensor output, with regard to this signal of sensor of looking over one's shoulder at once, extract the utmost point (little) the value parameter R of this sensor output signal
1, control the detection that this change-over switch is cut next sensor immediately, extract the minimal value R that next sensor records
2... cartwheel roll is crossed m the data that detection zone just obtains m sensor, calculates the mean diameter and the out-of-roundness of this wheel.See Fig. 7.
Claims (8)
1, a kind ofly be used for detecting, monitoring, diagnostic techniques follow the tracks of each information source A that gathers similar, orderly, moving information cohort
iThe method of complete time domain samples, acquisition system contains detecting sensor (1) and processor (2) thereof, target and Motion Recognition system (3) follow the tracks of change-over switch (4) and control system (5), information source A
iIn i=1～n, n is a natural number, it is characterized in that in the detector segments of the other length-specific L of information source motion path, lays m (group) sensor (L
j), j=1～m, wherein m is a natural number, sensor (L
j) detection signal surveyed felt, corresponding signal process device (2) outputs signal to and each information source (A after each sensor output signal is handled
i) the multichannel input port of corresponding each change-over switch (4), target and Motion Recognition system carry out target and Motion Recognition according to the distinctive characteristic parameter of target, determine each information source (A
j) arrive each sensor (l
j) the moment and sequential, control its switch (4) follow the tracks of to be switched the input signal from the signal processor of each sensor, separates and corresponding each the information source A of output
iCorresponding signal O
iAnd according to signal integrity principle, steadiness criterion, and adjacent sensors when work non-interference, sensor and layout sensor distributive province segment length L, spacing H are selected and designed to the principle that the signal of two adjacent nearest information sources should not sneaked in the corresponding output signal mutually, generally speaking for felt at sensor between radial regions-scope of X0 to X0 in, approximate permanent output type sensor and the approximate linear change output type sensor that satisfies F=f (x)=1-|X|/x0 that satisfies funtcional relationship F=f (x)=1 of sensor amplitude response F should have respectively:
L 〉=KS, H 〉=L0, L1 〉=2X0, H≤2X0; With
L≥K·S，H≥L0，L1≥2X0，H≤X0。
In the formula:
L-sensor distributive province segment length,
H-transducer spacing,
The bee-line of L0-sensor non-interference,
The distance of the adjacent nearest information source of L1-two,
The distance of S-low-limit frequency signal of every generation,
The number of the low-limit frequency signal that K-requirement is gathered.
2, by claim 1 describedly a kind ofly be used for detecting, the tracking of monitoring, diagnostic techniques gathers each information source A of similar, orderly, moving ensemble
iThe method of complete time domain samples, it is characterized in that containing in the signal processor (2) overlap-add procedure device (21), with the multichannel input port that several adjacent sensor signals make up the synthetic individual signals input of stack change-over switch successively, the change-over switch number of setting is identical with the information source number that is positioned at detector segments.
3, by claim 1 describedly a kind ofly be used for detecting, monitoring, diagnostic techniques follow the tracks of each information source A that gathers similar, orderly, moving information cohort
iThe method of complete time domain samples, when information source lift-over process, otherly in its path lay that sensor is sampled and L0＞x0 or L0＞2x0 make the layout requirement that can not directly satisfy sensor: when H≤xo or H≤2x0 and H＞L0, it is characterized in that suitably expanding the detector segments length L, corresponding expansion transducer spacing, and sensor is carried out segmentation divide into groups, the head and the tail sensor between the section group is broken uniform appropriate dislocation, at last the reasonable volume of the signal of each sensor is put in order continued access and becomes sample O
iOutput.
4, by claim 1 or 2 or 3 describedly a kind ofly be used for detecting, monitoring, diagnostic techniques, follow the tracks of each information source A that gathers similar, orderly, moving information cohort
iThe method of complete time domain samples, it is characterized in that being applied to information acquisition to each vehicle wheel component fault diagnosis of train of passing through, in the other layout of a section of railway track rail of 4～7 times of wheel circumference m sensor (1) is installed, really the rail of set a distance is other more than the railway carriage in the place ahead of detecting sensor (1) is long is provided with one and can be felt the sensor (3) that wheel arrived and produced a signal, its signal is handled the interface that tests the speed (51) of the computing machine (5) of being defeated by control system through front end circuit, determine the time interval of each wheel with software by this sensor, similarity according to the corresponding model wheel of vehicle spacing that contains in time interval sequence and the Computer Database, the identification vehicle, then calculate the speed of a motor vehicle and calculate the moment that each wheel arrives each signal detection sensor (1) with the sharp above-mentioned time interval of the between-wheel spacing of determining vehicle, each change-over switch 4 that the control in good time of computer control interface (52) Output Tracking Control code is made of the multi-channel analog data selector
i, correctly cutting each road information by each processor (2) input, the complete time domain samples that comprehensively becomes each corresponding each information source A is to computer A/D interface (53).
5, by claim 1,2,3 describedly a kind ofly be used for detecting, monitoring, diagnostic techniques follow the tracks of each information source A that gathers similar, orderly, moving information cohort
iThe method of complete time domain samples, it is characterized in that being applied to the signals collecting that propeller blade vibration detects, at propeller blade tip running circumference rear, noncontact evenly is provided with the pole plate of the capacitive transducer (1) that equates with number of blade n of row's number, all insulate between every section pole plate and with propeller and machine, and make the electric capacity of machine as far as possible little, the electric capacity of two adjacent pole plates should be less than the electric capacity of pole plate and propeller, the electric capacity that every section pole plate and propeller constitute inserts a high frequency oscillator (22) of installing nearby, propeller all is directly proportional with propeller vibration displacement amount with the electric capacity of pole plate and the vibration frequency deviation of frequency-modulated generator (22), the frequency-modulated wave of oscillator (22) exports change-over switch 4 to frequency discrimination wave detector (23) demodulation, establishes a sensor (3) at the head of a pole plate.Felt the information that each blade passes through, send count pulse to control system computing machine (5), control system computing machine (5) is that the n that MC14516 constitutes advances counter, it is exported n and patrols the ring sign indicating number, the multi-channel demodulator ripple of the correct intercepting in order of a plurality of change-over switches of corresponding each blade of control input, corresponding each the blade A of output
iThe signal O of vibration
i
6, by claim 1,2,3 describedly a kind ofly be used for detecting, monitoring, diagnostic techniques follow the tracks of each information source A that gathers similar, orderly, moving information cohort
iThe method of complete time domain samples, it is characterized in that being applied to collection to locomotive wheel rim looseness fault information, seam crossing facing to every lengths of rail on the highway section of containing 4～8 lengths of rail is installed sound transducer (1), or it is ad hoc more than two times on the rail middle part rail level of body length at one section, every 1/4～1/8 distance of taking turns girth, offer 4～8 V-type bump notches, corresponding each notch position is provided with sound transducer (1); Determine the other sensor (3) of adorning of rail of distance in detection zone the place ahead, the detection wheel is come, its signal is handled the interface that tests the speed (51) of the computing machine (5) of transporting to control system through front end circuit, determine the time interval of each wheel with software by speed pickup (3), the identification vehicle, measure the moment that the speed of a motor vehicle and each wheel arrive each signal detection sensor (1), computer control interface (52) Output Tracking Control code, corresponding each the information source A of control
iA plurality of change-over switches that constitute by the multi-channel analog selector switch (4) intercepting in good time from each road signal of treatment circuit (2) input.Output O
iA/D interface (53) to the computing machine of control system.
7, by claim 1,2,3 describedly a kind ofly be used for detecting, monitoring, diagnostic techniques follow the tracks of each information source A that gathers similar, orderly, moving information cohort
iThe method of complete time domain samples, it is characterized in that being applied to collection to speed reduction unit planet wheel failure message, the running circumference place of corresponding planet gear axis on reduction case, press planet wheel and count n n sonac of uniform installation (1), axle head at a planet wheel A1 is coated reflectorized material, in a sonac one side one photoelectric reflection formula sensor (3) is installed, in order to detect the arrival of A1 gear, produce the interface that tests the speed (51) that the computing machine (5) of control system is delivered in mark pulse, calculate the planetary gear revolution cycle with software, each planetary gear arrives the moment of each sensor (1), intercepts in good time and export corresponding a plurality of planetary fault-signal O by control interface (52) control its switch (4)
iTo computer A/D interface (53).
8, by claim 1,2,3 describedly a kind ofly be used for detecting, monitoring, diagnostic techniques follow the tracks of each information source A that gathers similar, orderly, moving information cohort
iThe method of complete time domain samples, it is characterized in that being applied to the wheel that passes through is taken turns footpath and out-of-roundness detection, one section be slightly larger than the straight rail of taking turns girth for half above, on the height H of rail rail level greater than the wheel footpath, the uniform detecting sensor (1) that the wheel tread of its below of m energy measurement is installed to the vertical range R of sensor, by control interface (52) control its switch (4) output of detecting sensor is scanned detection with control system computing machine (5) and corresponding software, output information to the A/D interface (53) of computing machine carries out the observing and controlling analysis, the extremal features parameter of this sensor output signal when extracting wheel through sensor, thereafter change-over switch switches to next sensor signal is carried out Measurement and analysis, extract another extremal features parameter, until the extremal features parameter of having extracted m sensor, calculate wheel mean diameter and out-of-roundness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94113183 CN1100310C (en) | 1994-12-19 | 1994-12-19 | Tracking collection for various information source time domain samples of homogeneous and ordered dynamic information (groups) clusters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94113183 CN1100310C (en) | 1994-12-19 | 1994-12-19 | Tracking collection for various information source time domain samples of homogeneous and ordered dynamic information (groups) clusters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1131779A CN1131779A (en) | 1996-09-25 |
| CN1100310C true CN1100310C (en) | 2003-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94113183 Expired - Lifetime CN1100310C (en) | 1994-12-19 | 1994-12-19 | Tracking collection for various information source time domain samples of homogeneous and ordered dynamic information (groups) clusters |
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| Country | Link |
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| CN (1) | CN1100310C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002372440A (en) * | 2001-06-14 | 2002-12-26 | Ho Jinyama | Signal recording device having state judging method, device, and function |
| CN101753451B (en) * | 2009-12-23 | 2013-01-23 | 卡斯柯信号有限公司 | Network load balance track traffic signal equipment state collection method |
| CN104063740B (en) * | 2013-03-21 | 2017-11-17 | 日电（中国）有限公司 | Office's group of entities identifying system, method and device |
| CN109085239A (en) * | 2018-07-24 | 2018-12-25 | 成都铁安科技有限责任公司 | A kind of wheel shaft comprehensive diagnos platform |
-
1994
- 1994-12-19 CN CN 94113183 patent/CN1100310C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1131779A (en) | 1996-09-25 |
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