CN105424164B - A kind of vibration detecting device, system and method - Google Patents
A kind of vibration detecting device, system and method Download PDFInfo
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- CN105424164B CN105424164B CN201510968061.1A CN201510968061A CN105424164B CN 105424164 B CN105424164 B CN 105424164B CN 201510968061 A CN201510968061 A CN 201510968061A CN 105424164 B CN105424164 B CN 105424164B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
- G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
Abstract
The present invention relates to a kind of vibration detecting device, system and method, device includes X-direction vibration detection module, for detecting the vibration of X-direction, generates X-direction vibration signal；Y-direction vibration detection module generates Y-direction vibration signal for detecting the vibration of Y-direction；Vector weighting module obtains vector weighting vibration signal for carrying out vector weighting to X-direction vibration signal and Y-direction vibration signal.Compared with the prior art, the present invention is adapted to the more vibration signal of Larger Dynamic range and carries out vector weighting, accurate positioning, strong antijamming capability to the vibration signal of different directions.
Description
Technical field
The present invention relates to home security technical field, in particular to a kind of vibration detecting device, system and method.
Background technique
With the quickening that Chinese Urbanization's are built, housing estate development to intelligent development, the security system of cell also synchronize to
Intelligent development is in addition with the improvement of people's life quality, the pilferage behavior for country and personal effects is in constantly to rise
Trend.The pilferage behavior especially carried out to shelter personal in cell happens occasionally.Although some at present need security protection
Region is monitored by the way of installing camera, but cannot achieve the timely identification and alarm of crime, and be easy quilt
It was found that and removing.
Vibration detecting device can be installed on cell enclosure wall and family's door and window, to realize timely identification and the report of crime
It is alert.In addition vibration detecting device can also be embedded within the walls or underground, realize alert when digging a hole to chisel wall.
Wrong report is primarily present applied to the vibration detector of safety-security area on the market at present or fails to report problem, and wrong report is main
Cause since detector can not reject high-decibel noise in meteorologic factor and environment, and fails to report mainly sensitive due to detector
Degree can not adjust automatically and identification frequency range short-range missile cause.In addition there is also locating effect difference problem for vibrating sensor
It discloses in the prior art " vibration detection device ", major technique is that solve that " it can be when an external force is applied
Differentiation is external force caused by which kind of behavior ", " measurement unit " realizes " filter circuit " and " amplifying circuit ", but " amplifying circuit "
Without band automatic growth control (AGC), therefore there are certain restrictions for the amplitude of inputted vibration signal, especially when " vibration detection dress
Set " it is installed on rigid objects surface, when such as cement flooring, because exponential curve is presented in its vibration wave, make " vibration detection device "
Be not suitable for being applied to rigid substance occasion.In addition the patent also not to realized by vibration detection device vibration source positioning and
The influence of meteorologic factor is explained.
It is disclosed in the prior art " for detecting the motion detector destroyed and for detecting the method destroyed ", is used
" electret microphone " senses " at least one of frequency, amplitude and intensity of vibration ", and " detector " include " signal
Amplifier " and " filter ", " electret microphone " carry out sense vibrations and need a resonant cavity or not closed environment, make this
Detector is very big or non-watertight in the volume of sensor.In addition " pre-determined model " disclosed in it is needed in different application
Test a variety of different " pre-determined models ".
Currently, the output that oscillation intensity is converted into electric signal may be implemented by piezoelectric element, then pass through amplifying circuit
Electric signal is amplified, then by filter circuit decay vibration noise, the electric signal finally amplified by with one or more threshold values
It is compared, to realize vibration detecting function.Known in the above detection method has become, but maximum existing for the detection method is asked
It is exactly insensitive to small signal for inscribing, and is easy wrong report to arbitrarily large signal.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of more vibration signals of Larger Dynamic range and right of being adapted to
The vibration signal of different directions carries out vector weighting, accurate positioning, the vibration detecting device of strong antijamming capability, system and side
Method.
The technical scheme to solve the above technical problems is that a kind of vibration detecting device, comprising:
X-direction vibration detection module generates X-direction vibration signal for detecting the vibration of X-direction；
Y-direction vibration detection module generates Y-direction vibration signal for detecting the vibration of Y-direction；
Vector weighting module obtains vector and adds for carrying out vector weighting to X-direction vibration signal and Y-direction vibration signal
Weigh vibration signal.
The beneficial effects of the present invention are: vector weighting module can be to X-direction vibration detection module and Y-direction vibration detection mould
The signal that block is sent carries out vector weighting, promotes the sensitivity of all directions vibration perception.
It further, further include Z-direction vibration detection module, the Z-direction vibration detection module is used to detect the vibration of Z-direction
It is dynamic, it generates Z-direction vibration signal and X-direction vibration signal and Y-direction vibration signal carries out vector weighting.
Further scheme the utility model has the advantages that vector weighting module can be to X-direction vibration detection module, Y-direction vibration detection
The signal that module and Z-direction vibration detection module are sent carries out vector weighting, promotes the sensitivity of all directions vibration perception；
Further, the X-direction vibration detection module, Y-direction vibration detection module and Z-direction vibration detection module are wrapped
Include detection unit, amplifying unit and filter unit；
The detection unit generates vibration signal for deformation occurs under the effect of vibration of vibrating object；
The amplifying unit, for being amplified to vibration signal；
The filter unit, for being filtered to amplified vibration signal.
Further scheme filters the utility model has the advantages that carrying out detection amplification by detection unit, amplifying unit and filter unit,
Promotion signal amplitude adaptation range and increase anti-interference ability.
It further, further include automatic gain control unit, the automatic gain control unit is for detecting amplification output letter
Number amplitude, and according to the amplitude of output signal regulate and control amplification vibration signal magnifying power.
Further scheme the utility model has the advantages that automatic gain control unit can make the present apparatus adapt to the vibration of more Larger Dynamic range
Dynamic signal, promotes anti-interference.
Further, the X-direction vibration detection module, Y-direction vibration detection module, Z-direction vibration detection module and arrow
It is integrated on a circuit board to measure weighting block, and the circuit board is made module by aluminum alloy materials and is sealed encapsulation.
Further scheme the utility model has the advantages that the present apparatus can adapt to be embedded to inferior environment, to reduce artificial destruction
It influences, promotes anti-interference.
A kind of vibration-detection system, including vibration processing device and a kind of n vibration detecting devices, the vibration
Processing unit is used to carry out signal processing to the n vibration signal that n vibration detecting device generates, and determines vibration source positioning area
Domain, wherein n >=3.
The beneficial effects of the present invention are: n vibration detecting device can flexibly be installed on wall according to the needs of site of deployment
Face, on protective fence, or embedment underground；Multiple spot arranges vibration detecting device, realizes the precise positioning to vibration source.
Further, n vibration detecting device, which is placed in, needs vibration source localization region, and carries out to n vibration detecting device
Isopleth calibration；Vibration processing device carries out time to peak, peak value width to the n vibration signal that n vibration detecting device generates
Degree and frequency detecting, are ranked up the peak amplitude of n vibration signal, the peak amplitude of n vibration signal after sequence into
Difference calculates between going two-by-two, will count counted n Magnitude Difference respectively divided by equivalent zone maximum attenuation m, and obtain Magnitude Difference
Equivalent zone number respectively corresponds each equivalent zone on plan view, and n Magnitude Difference overlapping region being calculated is determined as
Vibration source localization region.
Further scheme the utility model has the advantages that multiple spot arranges vibration detecting device, realize the positioning to vibration source, pass through simultaneously
Multiple spot analysis to vibration signal, Intelligent drainage remove external interference.
A kind of vibration detection method, comprising the following steps:
N vibration detecting device is placed in by step S1. needs vibration source localization region, and to n vibration detecting device into
The calibration of row isopleth；
Step S2. carries out time to peak, peak amplitude and frequency to the n vibration signal that n vibration detecting device generates
Detection；
Step S3. is ranked up the peak amplitude of n vibration signal, the peak amplitude of n vibration signal after sequence
Difference calculates between carrying out two-by-two；
Step S4. will count counted n Magnitude Difference respectively divided by equivalent zone maximum attenuation m, and wherein n >=3, obtain amplitude
The equivalent zone number of difference；
Step S5. respectively corresponds each equivalent zone on plan view, and n Magnitude Difference overlapping region being calculated is true
It is set to vibration source localization region.
The beneficial effects of the present invention are: the present invention can position the vibration source for generating vibration, can exclude to come from
Vibration interference caused by meteorologic factor, and in environment high-decibel noise influence.
Further, in the step S2 vibration signal specific implementation:
Step 21. detects the vibration of X-direction, generates X-direction vibration signal；The vibration of Y-direction is detected, Y-direction vibration is generated
Dynamic signal；The vibration of Z-direction is detected, Z-direction vibration signal is generated；
Step 22. carries out vector weighting to X-direction vibration signal, Y-direction vibration signal and Z-direction vibration signal, must swear
Amount weighting vibration signal.
Further scheme the utility model has the advantages that being carried out to X-direction vibration signal, Y-direction vibration signal and Z-direction vibration signal
Vector weighting promotes positioning accurate parasexuality.
Further, the specific implementation of the X-direction vibration signal, Y-direction vibration signal and Z-direction vibration signal:
Deformation occurs under the effect of vibration of vibrating object for step 211., generates vibration signal；
Step 212. amplifies vibration signal；
The amplitude of step 213. detection amplification output signal, and amplification vibration signal is regulated and controled according to the amplitude of output signal
Magnifying power；
Step 214. is filtered amplified vibration signal.
Further scheme filters the utility model has the advantages that carrying out detection amplification, the accuracy of promotion signal, automatic growth control list
Member can make the present apparatus adapt to the vibration signal of more Larger Dynamic range, promote anti-interference.
Detailed description of the invention
Fig. 1 is a kind of module frame chart of vibration detecting device of the present invention；
Fig. 2 be detection unit, amplifying unit, automatic gain control unit and filter unit module frame chart；
Fig. 3 is a kind of module frame chart of vibration-detection system of the present invention；
Fig. 4 is the positioning schematic diagram of vibration detecting；
Fig. 5 is the positioning schematic diagram of vibration detecting；
Fig. 6 is the structural schematic diagram of vibration detecting device；
Fig. 7 is a kind of method flow diagram of vibration detection method of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
10, vector weighting module, 11, X-direction vibration detection module, 12, Y-direction vibration detection module, 13, Z-direction vibration
Dynamic detection module；
20, detection unit, 21, amplifying unit, 22, automatic gain control unit, 23, filter unit；
30, vibration detecting device, 31, vibration processing device.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Embodiment 1:
As shown in Figure 1, a kind of vibration detecting device, comprising:
X-direction vibration detection module 11 generates X-direction vibration signal for detecting the vibration of X-direction；
Y-direction vibration detection module 12 generates Y-direction vibration signal for detecting the vibration of Y-direction；
Vector weighting module 10 obtains vector for carrying out vector weighting to X-direction vibration signal and Y-direction vibration signal
Weight vibration signal.
Vector weighting unit 10 is used to carry out vector weighting, vector to the vibration signal respectively from X-direction and Y-direction
The mathematical equation that weighting uses can beU3 is the vibration width exported after vector weighting in equation
Angle value, A are a proportionality coefficient, the gain control after realizing vector weighting；X is the Oscillation Amplitude value from X-direction；Y is
For the Oscillation Amplitude value from Y-direction.
It further include Z-direction vibration detection module 13, the Z-direction vibration detection module 13 is used to detect the vibration of Z-direction,
It generates Z-direction vibration signal and X-direction vibration signal and Y-direction vibration signal carries out vector weighting.
Vector weighting unit 10 is used to carry out vector weighting to the vibration signal respectively from X-direction, Y-direction and Z-direction,
The mathematical equation that its vector weighting uses can beU4 is defeated after vector weighting in equation
Oscillation Amplitude value out, A are a proportionality coefficient, the gain control after realizing vector weighting；X is the vibration from X-direction
Range value；Y is the Oscillation Amplitude value from Y-direction；Y is the Oscillation Amplitude value from Z-direction.
Embodiment 2:
As shown in Fig. 2, on the basis of embodiment 1, the X-direction vibration detection module 11, Y-direction vibration detection module
12 and Z-direction vibration detection module 13 include detection unit 20, amplifying unit 21 and filter unit 23；
The detection unit 20 generates vibration signal for deformation occurs under the effect of vibration of vibrating object；
The amplifying unit 21, for being amplified to vibration signal；
The filter unit 23, for being filtered to amplified vibration signal.
Voltage signal from amplifying unit 21 is filtered, filter unit 23 is made of multiple bandstop filters,
It may be implemented to decay to the signal in special frequency band, and to its out of band signal without decaying；For example, one can be used
Bandstop filter filters out voice signal, specifically, the start frequency of its bandstop filter is 300Hz, end frequency is 3400Hz.
The voltage signal being filtered by filter unit 23 can be directly output to vibration processing unit 31, can also be with another way
The voltage signal merging being filtered by filter unit 23 is input to vector weighting unit 10.
It further include automatic gain control unit 22, the automatic gain control unit 22 is used to detect amplification output signal
Amplitude, and regulate and control to amplify the magnifying power of vibration signal according to the amplitude of output signal.
Automatic gain control unit 22, which is realized, carries out undistorted amplification to the voltage signal of more Larger Dynamic range, and in addition it is closed
The time of loop back path control is adjustable, for example, the time of its closed loop control can be 0.1 second；When automatic gain control
When unit 22 processed detects that the output voltage amplitude of amplifying unit 21 is sufficiently large (such as U1), it will start to reduce amplifying unit
Magnifying power locks current magnifying power when the voltage amplitude of final output is lower than U1；In addition, when detecting that amplification is single
When the output voltage amplitude of member is sufficiently small (such as U2, there are U1 > U2), the magnifying power of increase amplifying unit will be started, until
When the voltage amplitude of final output is higher than U2, that is, lock current magnifying power.
As shown in fig. 6, the X-direction vibration detection module 11, Y-direction vibration detection module 12, Z-direction vibration detection mould
Block 13 and vector weighting module 10 are integrated on a circuit board, and the circuit board is made module by aluminum alloy materials and carries out
It is hermetically sealed.
Embodiment 3:
As shown in figure 3, a kind of vibration-detection system, including vibration processing device 31 and a kind of n vibration detectings
Device 30, the vibration processing device 31 are used to carry out at signal the n vibration signal that n vibration detecting device 30 generates
Reason, determines vibration source localization region, wherein n >=3.
Vibration processing unit 31 is used for vibration detecting device 30 or the vibration detecting device with vector weighting 30 exports
Vibration signal handled.
31, vibration processing device connections, one vibration detecting device 30, at this moment system can be only done simple vibration and visit
It surveys, the Oscillation Amplitude value of input is compared with one or more threshold value, according to the threshold number for being more than, is exported not at the same level
Other vibration alarming.
31, vibration processing device connections, one vibration detecting device 30 with vector weighting, at this moment system can be only done more
The Oscillation Amplitude value of the vibration detecting in direction, input is compared with one or more threshold value, according to the threshold number for being more than
Amount, exports the vibration alarming of different stage.
Vibration processing device 31 is connect with the n vibration detecting devices 30 of (n >=3) with vector weighting, while being handled and being come from n
The vibration data of a vibration detecting device 30 with vector weighting can exclude to come from, it can be achieved that positioning to vibration source
Vibration interference caused by meteorologic factor, and in environment high-decibel noise influence.
Preferably, n vibration detecting device 30, which is placed in, needs vibration source localization region, and to n vibration detecting device 30
Carry out isopleth calibration；When vibration processing device 31 carries out peak value to the n vibration signal that n vibration detecting device 30 generates
Between, peak amplitude and frequency detecting, the peak amplitude of n vibration signal is ranked up, the peak of n vibration signal after sequence
Difference calculates between value amplitude carries out two-by-two, will count counted n Magnitude Difference respectively divided by equivalent zone maximum attenuation m, and obtain width
The equivalent zone number for spending difference, each equivalent zone is respectively corresponded on plan view, the n Magnitude Difference overlay region that will be calculated
Domain is determined as vibration source localization region.
Decaying of each vibration detector surrounding medium of measured in advance to vibration signal first, every decaying m dB is as one
Equivalent zone, the equivalent zone will be multiple closed curves centered on being tested vibration detector；On the medium for needing to position,
N vibration detecting device is laid respectively, and making its equivalent zone, there are intersections；Positioning principle is respectively to from n (n >=3) vibrations
The detectable signal of detector carries out the time, amplitude, frequency detecting, obtains the single vibration of each vibration detecting device most substantially
Degree, then subtracts each other n amplitude two-by-two, to obtain the difference of Oscillation Amplitude, can position according to difference and equivalent zone
The position of vibration source；Its time and frequency are distinguished as different vibration detecting devices with the foundation once vibrated.
Embodiment 4:
As shown in fig. 7, a kind of vibration detection method, comprising the following steps:
N vibration detecting device is placed in by step S1. needs vibration source localization region, and to n vibration detecting device into
The calibration of row isopleth；
Step S2. carries out time to peak, peak amplitude and frequency to the n vibration signal that n vibration detecting device generates
Detection；
Step S3. is ranked up the peak amplitude of n vibration signal, the peak amplitude of n vibration signal after sequence
Difference calculates between carrying out two-by-two；
Step S4. will count counted n Magnitude Difference respectively divided by equivalent zone maximum attenuation m, obtain Magnitude Difference etc.
Value band number；
Step S5. respectively corresponds each equivalent zone on plan view, and n Magnitude Difference overlapping region being calculated is true
It is set to vibration source localization region.
1, according to three-point fix principle, vibration location model as shown in Figure 4 is obtained.
1) in the region for needing vibration source to position, n (n >=3) vibration detecting devices are placed；
It is assumed that n=3 is placed in L as shown in figure 4, respectively corresponding for 3, the position of K, H point.
2) isopleth calibration is carried out to n vibration detecting device；
As shown in figure 4, the enclosed region L1 is the region relative to L point Oscillation Amplitude decaying < m dB, the enclosed region L2 to L1
It is relative to the region of L point Oscillation Amplitude decaying<2mdB but>m dB, the enclosed region L3 to L2 is declined relative to L point Oscillation Amplitude
Subtract the region of<3mdB but>2m dB, the enclosed region L4 to L3 be relative to the decaying<4mdB of L point Oscillation Amplitude but>area of 3m dB
Domain, it is similar, it can continue to divide attenuation region L5, L6, L7 etc. according to this；
Similarly, isopleth calibration is also carried out to the vibration detecting device of K point and H point.Have K1, K2, K3 respectively, K4 and
H1, H2, H3, H4 etc.；
3) the time to peak t, peak amplitude u, voltage signal frequency f of each voltage signal are measured；
One vibration source belongs on a timeline continuous there may be multiple peak signals, needs exist for measuring peak
The value time, t was combined calculating, for distinguishing vibration peak different on time shaft.That is time t and frequency f are as vibration processing
The foundation of p-th of unit judges (p=1,2,3 ..) vibration signal peak value.
4) according to the peak amplitude u of p-th of voltage signallp, ukp,uhp, carry out descending sequence；
Ranking results, make peak amplitude the maximum ranked first position, and peak amplitude reckling arranges last position, it is assumed here that ukp
> uhp> ulp, then result is as follows after sorting: ukp,uhp, ulp
Certainly, can there are the equal situation of situation three, i.e. u herekp=uhp=ulp。
5) Magnitude Difference between calculating two-by-two.
Difference between calculating two-by-two, i.e. ukp-uhp, ukp-ulp,uhp-ulp, obtain △ u1, △ u2, △ u3.
6) difference between calculating two-by-two is obtained divided by an equivalent zone maximum attenuation m, i.e. △ u1/m, △ u2/m, △ u3/m
q1,q2,q3。
7) each equivalent zone is respectively corresponded on plan view, will be calculated n difference overlapping region is determined as vibrating
Source localization region.
2, the point of the c using in Fig. 7 illustrates the implementation of the above vibration detection method as vibration source below:
1) in the region for needing vibration source to position, 3 vibration detecting devices is placed, are placed in as shown in figure 5, respectively corresponding
The position of L, K, H point；
2) isopleth calibration is carried out to 3 vibration detecting devices.
As shown in figure 4, the enclosed region L1 is the region relative to L point Oscillation Amplitude decaying < m dB, the enclosed region L2 to L1
It is relative to the region of L point Oscillation Amplitude decaying<2m dB but>m dB, the enclosed region L3 to L2 is relative to L point Oscillation Amplitude
The region of decaying<3m dB but>2m dB, the enclosed region L4 to L3 are<4m dB but>the 3m dB that decays relative to L point Oscillation Amplitude
Region, it is similar, can continue according to this divide attenuation region L5, L6, L7 etc.；Similarly, the vibration of K point and H point is visited
It surveys device and also carries out isopleth calibration.There are K1, K2, K3, K4 and H1, H2, H3, H4 etc. respectively.
3) the time to peak t, peak amplitude u, voltage signal frequency f of each voltage signal are measured.One vibration source may
Multiple peak signals are generated, on a timeline continuous is belonged to, needs exist for being combined calculating to measuring time to peak t, use
In vibration peak different on differentiation time shaft.That is time t and frequency f as vibration processing unit judge p-th (p=1,2,
3 ..) foundation of vibration signal peak value.
4) according to the peak amplitude u of p-th of voltage signallp, ukp,uhp, carry out descending sequence.Ranking results make peak
Value amplitude the maximum ranked first position, and peak amplitude reckling arranges last position, c point be vibrated, there are ukp> uhp> ulp, then
Result is as follows after sequence: ukp,uhp, ulp
5) Magnitude Difference between calculating two-by-two.
Difference between calculating two-by-two, i.e. ukp-uhp, ukp-ulp,uhp-ulp, obtain △ u1, △ u2, △ u3.
6) two-by-two between difference divided by an equivalent zone maximum attenuation m, obtain the equivalent zone number of Magnitude Difference, difference is removed
Q1, q2, q3 are obtained with an equivalent zone maximum attenuation m, i.e. △ u1/m, △ u2/m, △ u3/m, for c point, there are 2 > q1 > 1,
2>q2>1,1>q3>0。
7) each equivalent zone is respectively corresponded on plan view, will be calculated 3 difference overlapping regions are determined as vibrating
Source localization region；For c point, the overlapping region that 2 > q1 > 1 is indicated is b3 in Fig. 7, the enclosed graphics field b4；What 2 > q2 > 1 was indicated
Overlapping region is b5 in Fig. 7, the enclosed graphics field b6；The overlapping region that 1 > q3 > 0 is indicated is b1 in Fig. 7, the enclosed graph area b2
Domain；
In conjunction with the intersection of above 3 overlapping regions, can position the present position vibration source c is b1, the enclosed region b3, b6
It is interior.
A point vibration as shown in Figure 4, using the vibration detection method, can have the roughly equal feelings of situation three here
Condition, i.e. 1 > q1 > 0,1 > q2 > 0,1 > q3 > 0.Also a point vibration position can be properly positioned out with enclosed region.
Preferably, in the step S2 vibration signal specific implementation:
Step 21. detects the vibration of X-direction, generates X-direction vibration signal；The vibration of Y-direction is detected, Y-direction vibration is generated
Dynamic signal；The vibration of Z-direction is detected, Z-direction vibration signal is generated；
Step 22. carries out vector weighting to X-direction vibration signal, Y-direction vibration signal and Z-direction vibration signal, must swear
Amount weighting vibration signal.
Preferably, the specific implementation of the X-direction vibration signal, Y-direction vibration signal and Z-direction vibration signal:
Deformation occurs under the effect of vibration of vibrating object for step 211., generates vibration signal；
Step 212. amplifies vibration signal；
The amplitude of step 213. detection amplification output signal, and amplification vibration signal is regulated and controled according to the amplitude of output signal
Magnifying power；
Step 214. is filtered amplified vibration signal.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of vibration-detection system, which is characterized in that including vibration processing device (31) and n vibration detecting device (30),
The n vibration signal that the vibration processing device (31) is used to generate n vibration detecting device (30) carries out signal processing, really
Determine vibration source localization region；
N vibration detecting device (30), which is placed in, needs vibration source localization region, and carries out to n vibration detecting device (30) equivalent
Line calibration；Vibration processing device (31) carries out time to peak, peak to the n vibration signal that n vibration detecting device (30) generates
Value amplitude and frequency detecting, are ranked up the peak amplitude of the P vibration signal of n vibration detecting device, the n after sequence
Difference calculates between the peak amplitude of a vibration signal carries out two-by-two, will count counted n Magnitude Difference respectively divided by equivalent zone most
Big decaying m, obtains the equivalent zone number of Magnitude Difference, each equivalent zone is respectively corresponded on plan view, by the n being calculated
Magnitude Difference overlapping region is determined as vibration source localization region, wherein n >=3.
2. a kind of vibration detection method, which comprises the following steps:
N vibration detecting device is placed in by step S1. to be needed vibration source localization region, and carries out to n vibration detecting device etc.
It is worth line calibration；
Step S2. carries out time to peak, peak amplitude and frequency detecting to the n vibration signal that n vibration detecting device generates；
Step S3. is ranked up the peak amplitude of the P vibration signal of n vibration detecting device, n vibration after sequence
Difference calculates between the peak amplitude of signal carries out two-by-two；
Step S4. will count counted n Magnitude Difference respectively divided by equivalent zone maximum attenuation m, obtain the equivalent zone of Magnitude Difference
Number；
Step S5. respectively corresponds each equivalent zone on plan view, and n Magnitude Difference overlapping region being calculated is determined as
Vibration source localization region, wherein n >=3.
3. a kind of vibration detection method according to claim 2, which is characterized in that vibration signal is specific in the step S2
It realizes:
Step 21. detects the vibration of X-direction, generates X-direction vibration signal；The vibration of Y-direction is detected, Y-direction vibration letter is generated
Number；The vibration of Z-direction is detected, Z-direction vibration signal is generated；
Step 22. carries out vector weighting to X-direction vibration signal, Y-direction vibration signal and Z-direction vibration signal, obtains vector and adds
Weigh vibration signal.
4. a kind of vibration detection method according to claim 3, which is characterized in that the X-direction vibration signal, Y-direction vibration
The specific implementation of dynamic signal and Z-direction vibration signal:
Deformation occurs under the effect of vibration of vibrating object for step 211., generates vibration signal；
Step 212. amplifies vibration signal；
The amplitude of step 213. detection amplification output signal, and regulate and control to amplify the amplification of vibration signal according to the amplitude of output signal
Rate；
Step 214. is filtered amplified vibration signal.
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