CN106323634A - Train bearing defect detection method and device - Google Patents
Train bearing defect detection method and device Download PDFInfo
- Publication number
- CN106323634A CN106323634A CN201610606086.1A CN201610606086A CN106323634A CN 106323634 A CN106323634 A CN 106323634A CN 201610606086 A CN201610606086 A CN 201610606086A CN 106323634 A CN106323634 A CN 106323634A
- Authority
- CN
- China
- Prior art keywords
- train
- train bearing
- signals collecting
- collecting district
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Circuit For Audible Band Transducer (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention provides a train bearing defect detection method and a device. The train bearing defect detection method is applied to train bearing defect detection device. The train bearing defect detection device comprises two acoustic sensor arrays and at least two wheel sensors. The method comprises the steps of collecting and storing sound signals received by each microphone sensor arranged in the two acoustic sensor arrays and the induction signals of the at least two wheel sensors when a train goes by the train bearing defect detection device; according to the induction signals, calculating to obtain the location of a train bearing at each of different moments within a signal acquisition area; according to the locations of the train bearing at different moments within the signal acquisition area, conducting the time-delay superposition treatment on the sound signals received by each microphone sensor in the two acoustic sensor arrays respectively to obtain two sets of sound signals. According to the technical scheme of the invention, the signal-to-noise ratio of detected sound signals is improved. Meanwhile, the detection effect is more ideal.
Description
This application claims and submit Patent Office of the People's Republic of China, Application No. 201610211527.8, invention name on April 7th, 2016
It is referred to as the priority of the Chinese patent application of " a kind of array acoustic detection method for train bearing defect on-line monitoring ", its
Full content is hereby incorporated by the application.
Technical field
The present invention relates to train bearing on-line monitoring technique field, particularly relate to a kind of train bearing defect inspection method and
Device.
Background technology
Along with railway transportation is more and more frequent, train operation mileage constantly promotes, and the most more carrys out the safety detection of train
The most important.Train bearing is one of worst parts of working condition in train part, in train continuous high speed long-distance operation feelings
Under condition, the dynamic load that train bearing bears is big, and bearing once breaks down and will quickly develop, if finding not in time, can lead
Pyrogenicity axle, fire axle, cut the generation of the accidents such as axle, directly affect safe train operation, jeopardize people life property safety.
Vibration detection technology is current most widely used bearing state detection technique.Traditional vibration detection technology is for connecing
Touch diagnoses, and needs to install ON TRAINS vibration detection device, in order to detect train bearing Vibration Condition, this detection mode
Equipment installs complexity, and fault rate is high.
For the deficiency of vibration detection technology, domestic and international research worker proposes single channel sound diagnostic techniques, by countershaft
Hold the detection of sound, determine train bearing whether existing defects, overcome conventional vibration detection technique and complicated, fault rate is installed
High shortcoming.But existing single channel sound diagnostic techniques is easily by noise jamming, and signal to noise ratio is low, it is difficult to preferably detected
Effect.
Summary of the invention
In order to solve above-mentioned the problems of the prior art and deficiency, the present invention proposes a kind of train bearing defect inspection method
And device, it is possible to increase the signal to noise ratio of detection acoustical signal, overcome the defect that existing single channel sound diagnostic techniques signal to noise ratio is low,
Testing result is accurately and reliably.
A kind of train bearing defect inspection method, is applied to train bearing defect detecting device, described train bearing defect
Detection device includes two acoustic sensor array and at least two wheel detector, the battle array of said two acoustic sensor array
Column direction is parallel with train rail direction and is symmetrically distributed in train rail both sides, and each acoustic sensor array is by least two
Microphone sensor forms；Described at least two wheel detector is arranged on train rail and is symmetrically distributed in described acoustics and passes
The perpendicular bisector both sides of sensor array；The method includes:
Gather and preserve train through described train bearing defect detecting device, in said two acoustic sensor array
The acoustical signal that receives of each microphone sensor and the induced signal of described at least two wheel detector；
According to the induced signal of described at least two wheel detector, it is calculated train bearing by the signals collecting district phase
Between the position at place the most in the same time；
According to described train bearing by the position at place the most in the same time during signals collecting district, respectively to said two sound
The acoustical signal that each microphone sensor in sensor array receives carries out time delay overlap-add procedure, obtains and passes through letter
Two groups of acoustical signals that the train bearing of number acquisition zone is corresponding.
Preferably, the described induced signal according to described at least two wheel detector, it is calculated train bearing and passes through
The position at place the most in the same time during signals collecting district, including:
According to the induced signal of described at least two wheel detector, calculate train bearing by used by signals collecting district
Time；
According to described train bearing by the time used by signals collecting district and the length in described signals collecting district, calculate row
Bearing is by the speed during signals collecting district；
According to described train bearing by the speed during signals collecting district, calculate train bearing by the signals collecting district phase
Between the position at place the most in the same time.
Preferably, the center distance that described at least two microphone sensor meets between neighboring microphones sensor is equal
And less than the half of train bearing vibration wave length of sound.
Preferably, the setting height(from bottom) of described microphone sensor and the height of train bearing are identical.
A kind of train bearing defect detecting device, including:
Two acoustic sensor array, the array direction of said two acoustic sensor array is parallel with train rail direction
And it being symmetrically distributed in train rail both sides, each acoustic sensor array is made up of at least two microphone sensor, is used for adopting
Collection train is through the acoustical signal of described train bearing defect detecting device；
At least two wheel detector, described at least two wheel detector is arranged on train rail and is symmetrically distributed in
The perpendicular bisector both sides of described acoustic sensor array, are used for when train is defeated through described train bearing defect detecting device
Go out induced signal；
Storage resolver, described storage resolver and said two acoustic sensor array and described at least two car
Wheel sensor connects, for preserving the sound letter that each microphone sensor in said two acoustic sensor array receives
Number and the induced signal of described at least two wheel detector；According to the induced signal of described at least two wheel detector, meter
Calculate and obtain train bearing by the position at place the most in the same time during signals collecting district；Adopted by signal according to described train bearing
During collection district, the position at place the most in the same time, connects each microphone sensor in said two acoustic sensor array respectively
The acoustical signal received carries out time delay overlap-add procedure, obtains two corresponding with the train bearing by signals collecting district group sound
Signal.
Preferably, described storage resolver, according to the induced signal of described at least two wheel detector, is calculated
Train bearing by during signals collecting district during the position at place the most in the same time, specifically for:
According to the induced signal of described at least two wheel detector, calculate train bearing by used by signals collecting district
Time；
According to described train bearing by the time used by signals collecting district and the length in described signals collecting district, calculate row
Bearing is by the speed during signals collecting district；
According to described train bearing by the speed during signals collecting district, calculate train bearing by the signals collecting district phase
Between the position at place the most in the same time.
Preferably, the center distance that described at least two microphone sensor meets between neighboring microphones sensor is equal
And less than the half of train bearing vibration wave length of sound.
Preferably, the setting height(from bottom) of described microphone sensor and the height of train bearing are identical.
Preferably, described storage resolver includes: decoding chip or Engineering Control computer.
The train bearing defect inspection method that the present invention proposes, is applied to train bearing defect detecting device, described train
Bearing defect detection device includes two acoustic sensor array and at least two wheel detector, said two acoustic sensor
The array direction of array is parallel with train rail direction and is symmetrically distributed in train rail both sides, each acoustic sensor array by
At least two microphone sensor forms；Described at least two wheel detector is arranged on train rail and is symmetrically distributed in institute
State the perpendicular bisector both sides of acoustic sensor array.Utilize device of the present invention that train bearing defect is detected, first
First gather and preserve train through described train bearing defect detecting device, each in said two acoustic sensor array
Acoustical signal that microphone sensor receives and the induced signal of described at least two wheel detector；Then according to described extremely
The induced signal of few two wheel detectors, is calculated train bearing by the position at place the most in the same time during signals collecting district
Put；Finally according to described train bearing by the position at place the most in the same time during signals collecting district, respectively to said two sound
The acoustical signal that each microphone sensor in sensor array receives carries out time delay overlap-add procedure, obtains and passes through letter
Two groups of acoustical signals that the train bearing of number acquisition zone is corresponding.Owing to train bearing acoustical signal has dependency, the most right
The acoustical signal that each mike receives carries out time delay overlap-add procedure, enhances train bearing acoustical signal, counteracts part
Noise signal, improves the signal to noise ratio of the acoustical signal detected, Detection results is more preferable.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
The accompanying drawing provided obtains other accompanying drawing.
Fig. 1 is the schematic flow sheet of a kind of train bearing defect inspection method disclosed in the embodiment of the present invention；
Fig. 2 is the induced signal according to described at least two wheel detector, is calculated train bearing and is adopted by signal
The schematic flow sheet of the position at place the most in the same time during collection district；
Fig. 3 is the structural representation of a kind of train bearing defect detecting device disclosed in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
The embodiment of the invention discloses a kind of train bearing defect inspection method, the method is applied to the inspection of train bearing defect
Surveying device, described train bearing defect detecting device includes two acoustic sensor array and at least two wheel detector, institute
State the array direction of two acoustic sensor array parallel with train rail direction and be symmetrically distributed in train rail both sides, each
Acoustic sensor array is made up of at least two microphone sensor；Described at least two wheel detector is arranged on train rail
Go up and be symmetrically distributed in the perpendicular bisector both sides of described acoustic sensor array；Seeing Fig. 1, the method includes:
S101, gather and preserve train through described train bearing defect detecting device, said two acoustic sensor
Acoustical signal that each microphone sensor in array receives and the induced signal of described at least two wheel detector；
Concrete, when train is through described train bearing defect detecting device, in said two acoustic sensor array
Each microphone sensor gather the acoustical signal received；When train bearing is above described wheel detector
Time, wheel detector can produce an induced signal, represents that train bearing passes through, and records this induced signal.
S102, induced signal according to described at least two wheel detector, be calculated train bearing and adopted by signal
The position at place the most in the same time during collection district；
Concrete, the region between described at least two wheel detector is signals collecting district.When train bearing is from institute
Stating wheel detector when passing over, the level of described wheel detector can change (uprising by high step-down or by low).For
Measuring accurately, can arrange multiple wheel detector in Practical Project, same, train bearing is often through a wheel-sensors
Device, the output level of described wheel detector will occur one-shot change.According to the situation of change of wheel detector output level,
The train bearing time through signals collecting district can be calculated, and then calculate the train bearing speed through signals collecting district
Position the most in the same time.
S103, according to described train bearing by the position at place the most in the same time during signals collecting district, respectively to described
The acoustical signal that each microphone sensor in two acoustic sensor array receives carries out time delay overlap-add procedure, obtain with
By two groups of acoustical signals that the train bearing in signals collecting district is corresponding.
Concrete, when train bearing is in a certain position in signals collecting district, every in described acoustic sensor array
One microphone sensor can receive acoustical signal, and it comprises train bearing acoustical signal and noise.Each mike
The train bearing acoustical signal that sensor receives has the highest dependency, and the noise received is random.According to row
Bearing position and the position relationship of each microphone sensor in described acoustic sensor array, can calculate when train axle
When holding a certain position being in signals collecting district, the acoustical signal that train bearing sends arrives in described acoustic sensor array
The time difference of each microphone sensor, receives each microphone sensor in described acoustic sensor according to this time difference
To acoustical signal carry out time delay superposition, owing to train bearing acoustical signal has dependency, noise has randomness, therefore
Train bearing acoustical signal can strengthen in superposition, and noise can be cancelled out each other and weaken, thus improves described acoustic sensor battle array
The signal to noise ratio of the acoustical signal that row gather.
It should be noted that in order to ensure described acoustic sensor array sensitive receiver acoustical signal, described at least two
Microphone sensor all uses full directing microphone sensor, can be with the acoustical signal of sensitive receiver all directions.Meanwhile, root
According to the frequency range of train bearing acoustical signal, the full directing Mike that we select frequency response range to be 50Hz～15KHz
Wind sensor, to get rid of the unwanted sound signal outside required frequency range.Described acoustic sensor array is described train bearing
The critical component of defect detecting device, in order to protect described acoustic sensor array, it is to avoid naturally existing by wind, rain, thunder and lightning etc.
The erosion of elephant or artificial destruction, in engineering reality, be generally mounted on train rail by described acoustic sensor array
In the acoustics rack of both sides.Described wheel detector generally uses rail clip formula installation method to be arranged on train rail, and it is installed
Position is usually in the range of each 3 meters of the perpendicular bisector both sides of described acoustic sensor array, and its installation site is according to work
Journey field condition can be adjusted.In order to measure, multiple wheel detector accurately can be installed according to demand, but must assure that
The each wheel detector of elaborate scheme is to the distance of the perpendicular bisector of described acoustic sensor array, to meet the later stage to train
The calculating demand of position of bearings.
The train bearing defect inspection method that the present invention proposes, is applied to train bearing defect detecting device, this device bag
Include two acoustic sensor array and at least two wheel detector, the array direction of said two acoustic sensor array and row
Car orbital direction is parallel and is symmetrically distributed in train rail both sides, and each acoustic sensor array is sensed by least two mike
Device forms；Described at least two wheel detector is arranged on train rail and is symmetrically distributed in described acoustic sensor array
Perpendicular bisector both sides.Utilize device of the present invention that train bearing defect is detected, first, gather and preserve train warp
When crossing described train bearing defect detecting device, each microphone sensor in said two acoustic sensor array receives
Acoustical signal and the induced signal of described at least two wheel detector；Then, according to described at least two wheel detector
Induced signal, be calculated train bearing by the position at place the most in the same time during signals collecting district；Finally, according to described
Train bearing is by the position at place the most in the same time during signals collecting district, respectively in said two acoustic sensor array
The acoustical signal that each microphone sensor receives carries out time delay overlap-add procedure, obtains and by the train axle in signals collecting district
Hold corresponding two group acoustical signal.Owing to train bearing acoustical signal has dependency, therefore each mike is received
Acoustical signal carry out time delay overlap-add procedure, enhance train bearing acoustical signal, counteract partial noise signal, improve inspection
The signal to noise ratio of the acoustical signal measured, Detection results is more preferable.
Optionally, in another embodiment of the present invention, according to the induced signal of described at least two wheel detector,
It is calculated train bearing by the position at place the most in the same time during signals collecting district, sees Fig. 2, including:
S201, induced signal according to described at least two wheel detector, calculate train bearing by signals collecting district
Time used；
Concrete, when train bearing is through the top of described wheel detector, the output level of described wheel detector
Can be changed (being uprised or by high step-down by low).Therefore, if the output level of wheel detector changes, this is i.e. described
Time train bearing have passed through the top of described wheel detector, it is clear that, wheel is by first wheel detector and
The time difference of later wheel detector, is train bearing by the time used by signals collecting district.Same, multiple when having
During wheel detector, train bearing passes through the time used by signals collecting district to use same method to determine.
S202, according to described train bearing by the time used by signals collecting district and the length in described signals collecting district,
Calculate train bearing by the speed during signals collecting district；
Concrete, when described train bearing defect detecting device only includes two wheel detectors, described signals collecting
Distance between the length in district that is two wheel detector, the distance between said two wheel detector and described train bearing
By the ratio of the time used by signals collecting district, it is train bearing by the speed during signals collecting district.When described row
When bearing defect detecting device includes multiple wheel detector, described signals collecting district a length of apart from described acoustics sensor
Distance between two wheel detectors that the perpendicular bisector of device array is farthest.For the adjacent wheel detector of each two it
Between region, it is adjacent by the two with described train bearing that we take distance between the wheel detector that the two is adjacent
The ratio of the time used by region between wheel detector, as train bearing by the adjacent wheel detector of the two it
Between region during speed.
S203, according to described train bearing by the speed during signals collecting district, calculate train bearing and adopted by signal
The position at place the most in the same time during collection district.
In concrete, that wheel detector output level changes for the first time moment, represent that train bearing entering signal is adopted
In the moment of Ji Qu, deduct train bearing entering signal acquisition zone with train bearing by a certain moment during signals collecting district
In the moment, being the duration that train bearing is advanced in signals collecting district, this duration and train bearing are by during signals collecting district
The product of speed, be the distance advanced in train bearing entering signal acquisition zone, in conjunction with the position of wheel detector and described
The distance advanced in train bearing entering signal acquisition zone, i.e. can determine that now train bearing position in signals collecting district.
Optionally, in another embodiment of the present invention, described at least two microphone sensor meets adjacent Mike
Center distance between wind sensor equal and less than train bearing vibration wave length of sound half.
Concrete, according to sampling thheorem, when the sampling interval of sampled signal is more than the half being sampled the signal period
Time, the signal that obtains of sampling can occur aliasing and distortion at frequency domain, therefore it is required that the sampling interval is less than is sampled the signal period
Half.This theory is applied to space, and acoustic sensor array is to sample train bearing acoustical signal in spatial domain,
When the spacing of described microphone sensor is more than the half of train bearing vibration wave length of sound, aliasing also can occur, i.e. produce
Graing lobe.In order to avoid graing lobe, engineering arranges the center distance between neighboring microphones sensor equal and less than train bearing
The half of vibration wave length of sound.
Optionally, in another embodiment of the present invention, the setting height(from bottom) of described microphone sensor and train bearing
Height identical.
Concrete, the setting height(from bottom) arranging described microphone sensor is identical with the height of train bearing, the most permissible
Make microphone sensor quickly receive train bearing acoustical signal, avoid train bearing acoustical signal by noise jamming as far as possible；Separately
On the one hand, the computation complexity calculating train bearing with the spacing of microphone sensor can be reduced.
Another embodiment of the present invention also discloses a kind of train bearing defect detecting device, sees Fig. 3, this device bag
Include:
Two acoustic sensor array 101, the array direction of said two acoustic sensor array and train rail direction
Parallel and be symmetrically distributed in train rail both sides, each acoustic sensor array is made up of at least two microphone sensor 104,
For gathering the train acoustical signal through described train bearing defect detecting device；
It should be noted that in order to ensure described acoustic sensor array 101 sensitive receiver acoustical signal, described at least two
Individual microphone sensor 104 all uses full directing microphone sensor, can be with the acoustical signal of sensitive receiver all directions.With
Time, according to the frequency range of train bearing acoustical signal, the full directing that we select frequency response range to be 50Hz～15KHz
Microphone sensor 104, to get rid of the unwanted sound signal outside required frequency range.Described acoustic sensor array 101 is institute
State the critical component of train bearing defect detecting device, in order to protect described acoustic sensor array 101, it is to avoid by wind, rain,
The erosion of the natural phenomenas such as thunder and lightning or artificial destruction, in engineering reality, generally install described acoustic sensor array 101
It is being positioned at the acoustics rack 105 of train rail both sides.
At least two wheel detector 102, described at least two wheel detector 102 is arranged on train rail and symmetrical
It is distributed in the perpendicular bisector both sides of described acoustic sensor array 101, for examining through described train bearing defect when train
Output induced signal when surveying device；
It should be noted that described wheel detector 102 generally uses rail clip formula installation method to be arranged on train rail,
Its installation site is usually in the range of each 3 meters of the perpendicular bisector both sides of described acoustic sensor array 101, its installation position
Put and can be adjusted according to engineering site situation.In order to measure, multiple acoustic sensor array accurately can be installed according to demand
102, but must assure that each wheel detector of elaborate scheme 102 arrives the perpendicular bisector of described acoustic sensor array 101
Distance, to meet the later stage calculating demand to train bearing position.
Storage resolver 103, described storage resolver 103 and said two acoustic sensor array 101 and described
At least two wheel detector 102 connects, for preserving each mike sensing in said two acoustic sensor array 101
Acoustical signal that device 104 receives and the induced signal of described at least two wheel detector 102；According to described at least two car
The induced signal of wheel sensor 102, is calculated train bearing by the position at place the most in the same time during signals collecting district；Root
According to described train bearing by the position at place the most in the same time during signals collecting district, respectively to said two acoustic sensor battle array
The acoustical signal that each microphone sensor 104 in row 101 receives carries out time delay overlap-add procedure, obtains adopting with by signal
Two groups of acoustical signals that the train bearing of Ji Qu is corresponding.
Concrete, in the present embodiment, the specific works content of various piece refers to the embodiment of the method content of correspondence, this
Place repeats no more.
The train bearing defect detecting device that the present invention proposes, including two acoustic sensor array 101, at least two car
Wheel sensor 102 and storage resolver 103, the array direction of said two acoustic sensor array 101 and train rail side
To parallel and be symmetrically distributed in train rail both sides, each acoustic sensor array 101 is by least two microphone sensor 104
Composition, for gathering the train acoustical signal through described train bearing defect detecting device；Described at least two wheel passes
Sensor 102 is arranged on train rail and is symmetrically distributed in the perpendicular bisector both sides of described acoustic sensor array 101, is used for
When train exports induced signal through described train bearing defect detecting device；Storage resolver 103 and said two sound
Learn sensor array 101 and described at least two wheel detector 102 connects, be used for preserving said two acoustic sensor array
Acoustical signal and the sensing of described at least two wheel detector 102 that each microphone sensor 104 in 101 receives are believed
Number；According to the induced signal of described at least two wheel detector 102, it is calculated train bearing by during signals collecting district
The position at place the most in the same time；According to described train bearing by the position at place the most in the same time during signals collecting district, respectively
The acoustical signal receiving each microphone sensor 104 in said two acoustic sensor array 101 carries out time delay and folds
Add process, obtain two corresponding with the train bearing by signals collecting district group acoustical signal.Owing to train bearing sound is believed
Number having dependency, the acoustical signal therefore received each microphone sensor 104 carries out time delay overlap-add procedure, enhances
Train bearing acoustical signal, counteracts partial noise signal, improves the signal to noise ratio of the acoustical signal detected, Detection results is more
Preferable.
Optionally, in another embodiment of the present invention, described storage resolver 103 is according to described at least two car
The induced signal of wheel sensor 102, is calculated train bearing by during signals collecting district during the position at place the most in the same time,
Specifically for:
According to the induced signal of described at least two wheel detector, calculate train bearing by used by signals collecting district
Time；
According to described train bearing by the time used by signals collecting district and the length in described signals collecting district, calculate row
Bearing is by the speed during signals collecting district；
According to described train bearing by the speed during signals collecting district, calculate train bearing by the signals collecting district phase
Between the position at place the most in the same time.
Concrete, the specific works content storing resolver 103 in the present embodiment refers to the embodiment of the method for correspondence
Content, here is omitted.
Optionally, in another embodiment of the present invention, described at least two microphone sensor 104 meets adjacent wheat
Center distance between gram wind sensor 104 is equal and half less than train bearing vibration wave length of sound.
Concrete, according to sampling thheorem, when the sampling interval of sampled signal is more than the half being sampled the signal period
Time, the signal that obtains of sampling can occur aliasing and distortion at frequency domain, therefore it is required that the sampling interval is less than is sampled the signal period
Half.This theory is applied to space, and acoustic sensor array is to sample train bearing acoustical signal in spatial domain,
When the spacing of described microphone sensor is more than the half of train bearing vibration wave length of sound, aliasing also can occur, i.e. produce
Graing lobe.In order to avoid graing lobe, engineering arranges the center distance between neighboring microphones sensor equal and less than train bearing
The half of vibration wave length of sound.
Optionally, in another embodiment of the present invention, the setting height(from bottom) of described microphone sensor 101 and train axle
The height held is identical.
Concrete, the setting height(from bottom) arranging described microphone sensor is identical with the height of train bearing, the most permissible
Make microphone sensor quickly receive train bearing acoustical signal, avoid train bearing acoustical signal by noise jamming as far as possible；Separately
On the one hand, the computation complexity calculating train bearing with the spacing of microphone sensor can be reduced.
Optionally, in another embodiment of the present invention, described storage resolver 103 includes: decoding chip or work
Process control computer.
As long as it should be noted that the device of the function of resolver 103 can be completed to store, can be used, example
If completing to store the decoding chip of resolver 103 function, Engineering Control computer, microcomputer, single-chip microcomputer etc..
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (9)
1. a train bearing defect inspection method, it is characterised in that be applied to train bearing defect detecting device, described train
Bearing defect detection device includes two acoustic sensor array and at least two wheel detector, said two acoustic sensor
The array direction of array is parallel with train rail direction and is symmetrically distributed in train rail both sides, each acoustic sensor array by
At least two microphone sensor forms；Described at least two wheel detector is arranged on train rail and is symmetrically distributed in institute
State the perpendicular bisector both sides of acoustic sensor array；The method includes:
Gather and preserve train through described train bearing defect detecting device, every in said two acoustic sensor array
Acoustical signal that individual microphone sensor receives and the induced signal of described at least two wheel detector；
According to the induced signal of described at least two wheel detector, be calculated train bearing by during signals collecting district not
The position at place in the same time；
According to described train bearing by the position at place the most in the same time during signals collecting district, respectively said two acoustics is passed
The acoustical signal that each microphone sensor in sensor array receives carries out time delay overlap-add procedure, obtains adopting with by signal
Two groups of acoustical signals that the train bearing of Ji Qu is corresponding.
Method the most according to claim 1, it is characterised in that believe according to the sensing of described at least two wheel detector
Number, it is calculated train bearing by the position at place the most in the same time during signals collecting district, including:
According to the induced signal of described at least two wheel detector, calculate train bearing by used by signals collecting district time
Between；
According to described train bearing by the time used by signals collecting district and the length in described signals collecting district, calculate train axle
Speed during holding by signals collecting district；
According to described train bearing by the speed during signals collecting district, calculate train bearing by during signals collecting district not
The position at place in the same time.
Method the most according to claim 1, it is characterised in that described at least two microphone sensor meets adjacent Mike
Center distance between wind sensor equal and less than train bearing vibration wave length of sound half.
Method the most according to claim 1, it is characterised in that the setting height(from bottom) of described microphone sensor and train bearing
Height identical.
5. a train bearing defect detecting device, it is characterised in that including:
Two acoustic sensor array, the array direction of said two acoustic sensor array is parallel with train rail direction and right
Claiming to be distributed in train rail both sides, each acoustic sensor array is made up of at least two microphone sensor, is used for gathering row
Car is through the acoustical signal of described train bearing defect detecting device；
At least two wheel detector, described at least two wheel detector is arranged on train rail and is symmetrically distributed in described
The perpendicular bisector both sides of acoustic sensor array, for when train is through the output sense of described train bearing defect detecting device
Induction signal；
Storage resolver, described storage resolver passes with said two acoustic sensor array and described at least two wheel
Sensor connects, for preserve acoustical signal that each microphone sensor in said two acoustic sensor array receives and
The induced signal of described at least two wheel detector；According to the induced signal of described at least two wheel detector, calculate
To train bearing by the position at place the most in the same time during signals collecting district；According to described train bearing by signals collecting district
Period place the most in the same time position, respectively each microphone sensor in said two acoustic sensor array is received
Acoustical signal carry out time delay overlap-add procedure, obtain two corresponding with the train bearing by signals collecting district group sound letter
Number.
Device the most according to claim 5, it is characterised in that described storage resolver is according to described at least two wheel
The induced signal of sensor, is calculated train bearing by during signals collecting district during the position at place the most in the same time, specifically
For:
According to the induced signal of described at least two wheel detector, calculate train bearing by used by signals collecting district time
Between；
According to described train bearing by the time used by signals collecting district and the length in described signals collecting district, calculate train axle
Speed during holding by signals collecting district；
According to described train bearing by the speed during signals collecting district, calculate train bearing by during signals collecting district not
The position at place in the same time.
Device the most according to claim 5, it is characterised in that described at least two microphone sensor meets adjacent Mike
Center distance between wind sensor equal and less than train bearing vibration wave length of sound half.
Device the most according to claim 5, it is characterised in that the setting height(from bottom) of described microphone sensor and train bearing
Height identical.
Device the most according to claim 5, it is characterised in that described storage resolver includes: decoding chip or engineering
Control computer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016102115278 | 2016-04-07 | ||
| CN201610211527.8A CN105865788A (en) | 2016-04-07 | 2016-04-07 | Array acoustic detection method for train bearing defect online monitoring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106323634A true CN106323634A (en) | 2017-01-11 |
| CN106323634B CN106323634B (en) | 2019-03-26 |
Family
ID=56637099
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610211527.8A Pending CN105865788A (en) | 2016-04-07 | 2016-04-07 | Array acoustic detection method for train bearing defect online monitoring |
| CN201610606086.1A Active CN106323634B (en) | 2016-04-07 | 2016-07-28 | A kind of train bearing defect inspection method and device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610211527.8A Pending CN105865788A (en) | 2016-04-07 | 2016-04-07 | Array acoustic detection method for train bearing defect online monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105865788A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332971A (en) * | 2018-03-12 | 2018-07-27 | 中国电子科技集团公司第三研究所 | A kind of interception of train bearing sound wave and joining method |
| CN110672341A (en) * | 2019-11-11 | 2020-01-10 | 成都主导科技有限责任公司 | Train running part detection system arranged on track |
| CN111044288A (en) * | 2019-12-31 | 2020-04-21 | 神州高铁技术股份有限公司 | Signal acquisition method and system, storage medium, diagnosis system and detection system |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289822A (en) * | 2016-08-31 | 2017-01-04 | 成都铁安科技有限责任公司 | A kind of train failure detection system and method |
| DE102016222069A1 (en) * | 2016-11-10 | 2018-05-17 | Robert Bosch Gmbh | Device for condition monitoring of a device and device with such a device and method for condition monitoring |
| CN107271139B (en) * | 2017-08-14 | 2023-07-28 | 中国航空工业集团公司哈尔滨空气动力研究所 | Combined microphone array device |
| CN108594795A (en) * | 2018-05-31 | 2018-09-28 | 北京康拓红外技术股份有限公司 | A kind of EMU sound fault diagnosis system and diagnostic method |
| CN108844741B (en) * | 2018-07-05 | 2019-10-18 | 安徽大学 | A kind of High-speed Train Bearing method for diagnosing faults based on the filtering of microphone uniform surface battle array |
| CN108725512B (en) * | 2018-07-23 | 2021-12-17 | 爱德森（厦门）电子有限公司 | Dynamic monitoring method for harmful foreign matter sticking on wheel tread |
| US10864930B2 (en) * | 2018-08-30 | 2020-12-15 | Voestalpine Signaling Usa Inc. | Railcar acoustic monitoring system and method of use |
| CN111044140B (en) * | 2019-12-31 | 2021-05-25 | 神州高铁技术股份有限公司 | Signal acquisition method, system, storage medium, diagnosis method and detection system |
| CN112781864A (en) * | 2020-12-25 | 2021-05-11 | 哈尔滨铁路科研所科技有限公司 | Fault diagnosis method, device and system for bottom transmission system of bullet train |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090336A (en) * | 2001-09-17 | 2003-03-28 | Nippon Skf Kk | Device and method for diagnosing wheel rotating part |
| CN1693125A (en) * | 2005-03-16 | 2005-11-09 | 广州市科思通技术有限公司 | Method for on-line monitoring running state of high speed strain |
| CN101057128A (en) * | 2004-09-11 | 2007-10-17 | 通用电气公司 | Rail sensing apparatus and method |
| US20090326746A1 (en) * | 2008-06-30 | 2009-12-31 | Mian Zahid F | Wireless railroad monitoring |
| CN103969046A (en) * | 2014-05-20 | 2014-08-06 | 北京康拓红外技术股份有限公司 | Bearing acoustic diagnosis system and method used in combination with wheel set bearing running-in machine |
| CN204556257U (en) * | 2015-04-22 | 2015-08-12 | 北京康拓红外技术股份有限公司 | A kind of rolling stock rolling bearing acoustic diagnostic instrument |
| CN105000032A (en) * | 2015-07-07 | 2015-10-28 | 北京康拓红外技术股份有限公司 | Digitization method for railway vehicle bearing acoustic detection system and implementation device for digitization method |
| CN105258785A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第三研究所 | Acoustic monitoring station, wheel detection method and train bearing fault passive acoustic diagnosis system |
| CN105388478A (en) * | 2014-09-03 | 2016-03-09 | 计算机科学应用促进会 | Method and arrangement for detecting acoustic and optical information as well as a corresponding computer program and a corresponding computer-readable storage medium |
-
2016
- 2016-04-07 CN CN201610211527.8A patent/CN105865788A/en active Pending
- 2016-07-28 CN CN201610606086.1A patent/CN106323634B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090336A (en) * | 2001-09-17 | 2003-03-28 | Nippon Skf Kk | Device and method for diagnosing wheel rotating part |
| CN101057128A (en) * | 2004-09-11 | 2007-10-17 | 通用电气公司 | Rail sensing apparatus and method |
| CN1693125A (en) * | 2005-03-16 | 2005-11-09 | 广州市科思通技术有限公司 | Method for on-line monitoring running state of high speed strain |
| US20090326746A1 (en) * | 2008-06-30 | 2009-12-31 | Mian Zahid F | Wireless railroad monitoring |
| CN103969046A (en) * | 2014-05-20 | 2014-08-06 | 北京康拓红外技术股份有限公司 | Bearing acoustic diagnosis system and method used in combination with wheel set bearing running-in machine |
| CN105388478A (en) * | 2014-09-03 | 2016-03-09 | 计算机科学应用促进会 | Method and arrangement for detecting acoustic and optical information as well as a corresponding computer program and a corresponding computer-readable storage medium |
| CN204556257U (en) * | 2015-04-22 | 2015-08-12 | 北京康拓红外技术股份有限公司 | A kind of rolling stock rolling bearing acoustic diagnostic instrument |
| CN105000032A (en) * | 2015-07-07 | 2015-10-28 | 北京康拓红外技术股份有限公司 | Digitization method for railway vehicle bearing acoustic detection system and implementation device for digitization method |
| CN105258785A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第三研究所 | Acoustic monitoring station, wheel detection method and train bearing fault passive acoustic diagnosis system |
Non-Patent Citations (1)
| Title |
|---|
| 廖玉萍: "《物理知识辞典》", 30 September 1996, 济南出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332971A (en) * | 2018-03-12 | 2018-07-27 | 中国电子科技集团公司第三研究所 | A kind of interception of train bearing sound wave and joining method |
| CN110672341A (en) * | 2019-11-11 | 2020-01-10 | 成都主导科技有限责任公司 | Train running part detection system arranged on track |
| CN111044288A (en) * | 2019-12-31 | 2020-04-21 | 神州高铁技术股份有限公司 | Signal acquisition method and system, storage medium, diagnosis system and detection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106323634B (en) | 2019-03-26 |
| CN105865788A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106323634A (en) | Train bearing defect detection method and device | |
| CN103088849B (en) | A kind of servicing bridges foundation pile stress wave echo lossless detection method | |
| CN102506986B (en) | Test system and method for mode and vibration of self-supporting tower and large-span power transmission tower | |
| CN103207097B (en) | Orbit rigidity dynamic testing method | |
| Nayak et al. | Distributed acoustic sensing using dark fiber for array detection of regional earthquakes | |
| CN103587548B (en) | The city rail vehicle wheel out of round degree method of inspection that sensor is directly measured | |
| CN103587549B (en) | Based on city rail vehicle wheel out of round degree detecting device and the method for laser sensor | |
| CN109693679A (en) | A kind of monitoring system of train operation quality | |
| CN101493186A (en) | Groundwater supply pipe network water leakage detecting method | |
| CN107244335B (en) | Wave abrasion detection device and method | |
| CN102288220A (en) | System for measuring multiple factors such as sandstorm electric field, sand electrification, wind speed and the like synchronously in real time | |
| CN113218640B (en) | Vibration damping effect test method for vibration damping track | |
| CN110333038A (en) | A kind of online health monitoring systems of Node In Large-span Pipe Truss structure based on Fibre Optical Sensor | |
| CN110045085A (en) | A kind of agricultural environment detection device | |
| CN103630605B (en) | A kind of prestress anchorage cable pipeline slip casting detection method | |
| CN106289824A (en) | A kind of free state is detrained unsteadiness of wheels acoustic radiation characteristic test method and device | |
| CN105000034B (en) | A kind of locomotive speedometer detected based on trackside | |
| CN209387067U (en) | A kind of environmental protection management real-time detection apparatus | |
| CN107153002A (en) | Wind power generation stepped connector aeration level detection method and detection means | |
| CN103123303B (en) | Quantifying and online monitoring method of bridge girder safe reliability | |
| CN207141101U (en) | A kind of vehicle-mounted removable rail in high speed railway hurt acoustic emission detection system | |
| CN109357823B (en) | Method for actually measuring maximum strain of pavement structure bottom and vehicle axle load speed | |
| CN107860467A (en) | A kind of test system and equipment of rail vehicle radiated noise | |
| RU2012124994A (en) | CONTROL DEVICE AND METHOD FOR ITS OPERATION | |
| CN207409137U (en) | Speed measurer for motor vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |