CN206321395U - A kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology - Google Patents
A kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology Download PDFInfo
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- CN206321395U CN206321395U CN201621482561.0U CN201621482561U CN206321395U CN 206321395 U CN206321395 U CN 206321395U CN 201621482561 U CN201621482561 U CN 201621482561U CN 206321395 U CN206321395 U CN 206321395U
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Abstract
The utility model provides a kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology, including fixed pedestal, the fixed pedestal connects vibration acceleration sensor by elastic conductive part, signal is connected chaotic signal by coaxial cable after signal sampling amplifies and detects circuit by vibration acceleration sensor, by optical fiber output interface by signal output.The signal input chaotic signal of reception is detected circuit by the utility model, thus the spectrum signature of input acoustic signals can quickly be calculated, pipe leakage intensity is analyzed in real time, the relatively conventional analysis method of the sensor, measurement sensitivity, the antijamming capability to ambient noise, detection accuracy etc. have preferable feature, received signal to noise ratio is low, the features such as fast response time.
Description
Technical field
The utility model belongs to photoelectric sense technology field, more particularly, to a kind of water-supply-pipe of chaos voiceprint analysis technology
Road leakage monitoring sensor.
Background technology
Chaotic measurement method has high measurement sensitivity and extremely strong " immune " is respectively provided with to any zero mean noise
Power is the characteristics of it is most prominent, and it is micro- under any zero mean noise background that this feature determines that chaotic measurement method can apply to
The parameter Estimation of weak signal, a key property of chaos system is to primary condition (initial phase) and parameter (phase, frequency
Rate, amplitude) exquisite sensitivity.
Aqueduct is in normal course of operation, because pump, motor and other power system operations are relatively steady, energy phase
To concentrating, most of energy spectrum is all concentrated on low frequency component, and the vibration externally exported and sound wave are all in below 2000Hz's
Low frequency component.This part component is by collection and is amplified into signal-processing board (built-in chaos system), and chaos system is to defeated
Enter signal frequency very sensitive, for low-frequency input signal, chaos system will not produce phase transformation.If there is booster in aqueduct
Or situations such as piping and seepage, the high fdrequency component externally exported just occurs, chaos receives the signal plate vibration higher to frequency
Signal is produced accordingly, and the track of whole system changes, around this principle, a kind of using chaos voiceprint analysis Technology design
Aqueduct leakage monitoring sensor, the sensor gathers the voiceprint of aqueduct in real time, carries out chaos resolving, once go out
The continuous component of existing high frequency, will send early warning.The sensitivity of sensor is high, and dynamic response is good, is adapted to extensive aqueduct
Leak detection.
The domestic and international pipeline leakage checking system based on signal analysis technology, is generally adopted using Simulation scale-up plus signal at present
Collection and spectrum analysis technique, this method precision is not high, is easily failed by the interference of noise.The spirit of chaotic signal detection method
Sensitivity is high, and frequency selectivity is strong, is adapted to the accurate identification for doing failure
The content of the invention
In view of this, the utility model is directed to a kind of aqueduct leakage monitoring sensing of chaos voiceprint analysis technology
Device, realizes and the leakage noise of pipeline is carried out accurately to calculate and position.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology, including fixed pedestal, the fixed base
Seat connects vibration acceleration sensor by elastic conductive part, and vibration acceleration sensor will letter after signal sampling amplifies
Number connecting chaotic signal by coaxial cable detects circuit, by optical fiber output interface by signal output.
Further, the chaotic signal detection circuit is by power supply circuit, measured signal input, amplification and product
Parallel circuit, multiplier circuit, feedback amplifier and reference signal input are constituted.
Further, the power supply circuit of the chaotic signal detection circuit provides power supply for whole circuit, is measured
The input signal of signal input part amplifies sinusoidal periodic signal by amplification and integrating circuit, using multiplier circuit to input
The reference signal that signal is inputted with reference signal input is multiplied, and is transmitted back to output signal by feedback amplifier measured
Signal input part, forms chaotic output after Oscillatory Coupling.
Relative to prior art, a kind of aqueduct leakage monitoring of chaos voiceprint analysis technology described in the utility model
Sensor has the advantage that：Thus the utility model can quickly calculate the signal input chaotic signal detection circuit of reception
Go out to input the spectrum signature of acoustic signals, pipe leakage intensity is analyzed in real time, the relatively conventional analysis side of the sensor
Method, measurement sensitivity, the antijamming capability to ambient noise, detection accuracy etc. have preferable feature, and received signal to noise ratio is low, ring
Answer the features such as speed is fast.
Brief description of the drawings
Constitute a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not constitute to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is a kind of aqueduct leakage monitoring sensing of chaos voiceprint analysis technology described in the utility model embodiment
The installation connection diagram of device；
Fig. 2 is a kind of aqueduct leakage monitoring sensing of chaos voiceprint analysis technology described in the utility model embodiment
The chaotic signal detection circuit of device；
Description of reference numerals：
1- fixed pedestals；2- elastic conductive parts；3- vibration acceleration sensors；4- chaotic signals detect circuit；5- light
Fine output interface；6- low frequency quieter materials；7- power supply circuits；8- measured signal inputs；9- amplifies and integrating circuit；
10- multiplier circuits；11- feedback amplifiers；12- reference signal inputs.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicate
Or imply that the device or element of meaning must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in figure 1, using low frequency quieter material 6, the other parts of sensor vibration acquisition system are wrapped up, it is main
Syllabus is the interference for reducing outside noise signal, and whole sensor component is installed in pipeline outer-layer by fixed pedestal 1, is led to
Cross elastic conductive part 2 to connect vibration acceleration sensor 3, vibration acceleration sensor 3 will after signal sampling amplifies
Signal is connected by coaxial cable, and by signal feeding chaotic signal detection circuit 4, detection circuit diagram is as shown in Figure 2 in detail.Chaos
Signal deteching circuit 4 the accurate frequency to inputted vibration signal can be calculated very much, then will by optical fiber output interface 5
Signal output.
The operation principle of chaotic signal detection circuit 4 is by power supply circuit 7 and measured signal input 8, amplification
Constituted with integrating circuit 9, multiplier circuit 10, feedback amplifier 11 and reference signal input 12.The power supply of circuit
Circuit 7 provides power supply for whole chaos system, and the input signal of measured signal input 8 will by amplification and integrating circuit 9
Sinusoidal periodic signal is amplified, the phase of reference signal 12 inputted using multiplier circuit 10 to input signal with reference signal input
Multiply, output signal is transmitted back to measured signal input 8 by feedback amplifier 11, chaos is formed after Oscillatory Coupling
Output.If input signal and reference signal are same frequency signals, then the state of output end is exactly chaos, if frequency is not
Identical, output signal is exactly non-chaos state, using the state of this structure detection acoustic vibration signal.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modifications, equivalent substitutions and improvements made etc. should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology, it is characterised in that：Including fixed pedestal
(1), the fixed pedestal (1) connects vibration acceleration sensor (3), vibration acceleration sensing by elastic conductive part (2)
Signal is connected chaotic signal by coaxial cable after signal sampling amplifies and detects circuit (4) by device (3), passes through optical fiber output
Interface (5) is by signal output.
2. a kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology according to claim 1, its feature
It is：The chaotic signal detection circuit (4) is by power supply circuit (7), measured signal input (8), amplification and integrates
Circuit (9), multiplier circuit (10), feedback amplifier (11) and reference signal input (12) are constituted.
3. a kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology according to claim 2, its feature
It is：The power supply circuit (7) of the chaotic signal detection circuit (4) provides power supply for whole circuit, and measured signal is defeated
The input signal for entering end (8) amplifies sinusoidal periodic signal by amplification and integrating circuit (9), right using multiplier circuit (10)
The reference signal that input signal is inputted with reference signal input (12) is multiplied, by feedback amplifier (11) by output signal
Measured signal input (8) is transmitted back to, chaotic output is formed after Oscillatory Coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621482561.0U CN206321395U (en) | 2016-12-30 | 2016-12-30 | A kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621482561.0U CN206321395U (en) | 2016-12-30 | 2016-12-30 | A kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology |
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| Publication Number | Publication Date |
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| CN206321395U true CN206321395U (en) | 2017-07-11 |
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| CN201621482561.0U Active CN206321395U (en) | 2016-12-30 | 2016-12-30 | A kind of aqueduct leakage monitoring sensor of chaos voiceprint analysis technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458254A (en) * | 2018-03-13 | 2018-08-28 | 湖北精瑞通流体控制技术有限公司 | Chaos system harmonic response pipeline monitors system |
| CN110867195A (en) * | 2019-11-20 | 2020-03-06 | 四川赛康智能科技股份有限公司 | Online defect monitoring method for electric main equipment based on voiceprint and vibration |
-
2016
- 2016-12-30 CN CN201621482561.0U patent/CN206321395U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458254A (en) * | 2018-03-13 | 2018-08-28 | 湖北精瑞通流体控制技术有限公司 | Chaos system harmonic response pipeline monitors system |
| CN108458254B (en) * | 2018-03-13 | 2023-11-03 | 湖北精瑞通流体控制技术有限公司 | Harmonic response pipeline monitoring system of chaotic system |
| CN110867195A (en) * | 2019-11-20 | 2020-03-06 | 四川赛康智能科技股份有限公司 | Online defect monitoring method for electric main equipment based on voiceprint and vibration |
| CN110867195B (en) * | 2019-11-20 | 2023-12-12 | 四川赛康智能科技股份有限公司 | Online defect monitoring method for electric main equipment based on voiceprint and vibration |
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