CN105891808B - A kind of acoustic emission apparatus of Multi-target position - Google Patents
A kind of acoustic emission apparatus of Multi-target position Download PDFInfo
- Publication number
- CN105891808B CN105891808B CN201610359967.8A CN201610359967A CN105891808B CN 105891808 B CN105891808 B CN 105891808B CN 201610359967 A CN201610359967 A CN 201610359967A CN 105891808 B CN105891808 B CN 105891808B
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- power amplifier
- power supply
- signal
- sound wave
- energy converter
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/534—Details of non-pulse systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
Abstract
The invention belongs to ultrasonic positioning techniques field, specially a kind of acoustic emission apparatus that can be used for Multi-target position.Apparatus of the present invention are made of shell, energy converter, close power amplifier, signal processor and Switching Power Supply.Input 220V electric main, Switching Power Supply makes its work to signal processor and close power amplifier power supply, signal processor exports interval harmonic signal, after close power amplifier amplifies, it boosts again through transformer, supply energy converter, then evoke transducer vibrations, target point needed for interval simple harmonic quantity sound wave is emitted to Multi-target position by energy converter, the speed and time for propagating the equipment of each target point in air according to sound wave determine target point with a distance from sound wave launch point, realize that some transmitting multiple target positions simultaneously.The present invention can be used for the positioning of construction personnel between two linings and face in the tunnel boring works such as railway, highway, it can also be used to the determination of the occasions personnel shift position and residence time such as square, exhibitions, park.
Description
Technical field
The invention belongs to ultrasonic positioning techniques fields, and in particular to a kind of sound wave transmitting dress that can be used for Multi-target position
It sets.
Background technique
The general method for carrying out ranging or positioning using sound wave transmitting be mostly using high directivity ultrasonic wave transmitting with
What reflection was completed.Accurate ranging effect in order to obtain, has used the ultrasonic wave of high directivity, since ultrasonic wave is in air
Middle decaying quickly, thus measures distance it is not possible that too far.In addition this method can only measure the distance of reverberation, neither
The type of reverberation can be screened, can not reflect the quantity of reverberation.Especially for tunnellings such as railway, highways
Cheng Zhong, multiple target (positioning of the multiple staff of different location) positioning between two linings and face, generally requires sound wave transmitting
Distance is up to 200 meters or more, and the face of sound wave arrival is due to the work of air drill, excavator, loading machine, heavy type transport vehicle etc.
Noise is very big, existing ranging ultrasonic wave due to decay at a distance and by strong background noise masking action, it is fixed to be unable to reach
The purpose of position measurement.
Summary of the invention
Shortcoming present in view of the above technology, long, positioning that the purpose of the present invention is to provide a kind of transmitting ranges
The good acoustic emission apparatus for Multi-target position of measurement effect.
Provided by the present invention for the acoustic emission apparatus 1 of Multi-target position, by cabinet 2, energy converter 3, containing transformer
Close power amplifier 4, signal processor 5 and Switching Power Supply 6 form, energy converter 3, close power amplifier 4, signal processor 5, Switching Power Supply 6
It is assemblied in cabinet 2 together, it is shown in Figure 1.
220V electric main is accessed, Switching Power Supply 6 is powered to signal processor 5 and close power amplifier 4, makes its work, signal
Processor 5 exports interval harmonic signal, boosts after the amplification of close power amplifier 4, then through transformer, supplies energy converter 3, evoke and change
Energy device 3 vibrates, and target point needed for interval simple harmonic quantity sound wave is emitted to Multi-target position by energy converter 3 makes the equipment of each target point
The speed and time propagated in air according to sound wave determine target point with a distance from sound wave launch point, and it is more to reach some transmitting
The purpose that target positions simultaneously.
In the present invention, cabinet 2 can be cuboid, the square bodily form, hexahedron or tubular thin walled shell, material
Metal can be selected.In order to guarantee sound wave transmitting and energy converter 3 using safe, the front end of energy converter 3 is provided with safe metal
Net, in addition, being blocked without any other.The 220V that cabinet 2 is additionally provided with water-proof function above exchanges input socket and signal input is defeated
Socket out, and four connecting accessories with integral installation.Cabinet 2 will also have certain sealing performance, prevent dust and water
The entrance of mist.
In the present invention, energy converter 3 by attachment bolt 7, rear end cap 8, piezoelectric ceramic piece and voltage input end 9, amplitude transformer 10,
Impedance matching layer 11, impedance matching enhancement layer 12 are sequentially connected composition, and rear end cap 8, piezoelectric ceramic piece 9 and amplitude transformer 10 pass through spiral shell
Bolt 7 is linked together, referring to shown in attached drawing 2.Wherein, piezoelectric ceramic piece is ring structure, thickness and inner and outer diameter according to being sent out
The frequency of sound wave penetrated determines that quantity is determined according to the intensity of transmitting sound wave, is generally connected by the potsherd of 3 to 10 pieces of ring structures
Composition.The energy converter being made of above-mentioned component can emit in 7KHz to 20KHz frequency according to the needs of Multi-target position
The interval simple harmonic quantity sound wave of a certain single-frequency.The interval simple harmonic quantity sound wave of frequency is determined for emitting, if intensity is not able to satisfy multiple spot and determines
The needs of position, can be penetrated by performance 3 groups of paroxysms of identical energy converter.
In the present invention, close power amplifier 4 is sequentially connected and is formed by the D-type power amplifier 13 and transformer 14 of bridge joint output,
Referring to shown in attached drawing 3.Peak-to-peak value 8V interval harmonic signal is inputted in positive and negative 80V and positive and negative 15V power supply power supply, by power amplifier input terminal
In the case where, the power amplifier have power supply, signal, protection, slicing instruction, the output of radiator fan power supply, temperature protection, in
Point protection, under-voltage protection, overcurrent protection function, output end can export 1500 watts of power, voltage peak-to-peak value 180V, into change
Depressor 14.The power amplifier 13 and output transformer 14 cooperate the height electricity of 200V to 1500V required for output transducer 3
Pressure.
In the present invention, signal processor 5 is inputted by microprocessor 15, filter 16, eight bit switches 17, outer triggering signal
End 18 is formed through circuit connection, and has power input and signal output end, referring to shown in attached drawing 4.In positive and negative 15V electric power thus supplied
Under, the interval harmonic signal of peak-to-peak value 8V can be provided for close power amplifier 4, realize external trigger and interior by adjusting eight bit switches
The switching of portion's triggering, and the make-and-break time of output signal is adjusted, guarantee that zero-signal exports during signal interruption.
In the present invention, Switching Power Supply 6(attached drawing 5) it is mainly that signal processor 5 provides positive and negative 15V power supply, it is close power amplifier 4
Positive and negative 80V and positive and negative 15V power supply are provided, guarantee that signal processor 5 and close power amplifier 4 work normally.
Apparatus of the present invention by the design and combination to energy converter 3, close power amplifier 4, signal processor 5, Switching Power Supply 6,
A certain unifrequent audible interval simple harmonic quantity sound wave between 7KHz to 20KHz can be emitted, and cooperate peak power and signal
Coordinate between duty ratio.Not only breach the close disadvantage of conventional ultrasonic wave transmitting range, and solve high-power energy converter by
The heating problem caused by long continuous operation.Therefore the sound wave of invention device transmitting, under strong background noise environment, energy
It realizes effective reception of any distance within 300 meters using plurality of mobile phones as accepting device, and combines WIFI and computer complete
The accurate positioning of pairs of multiple target, and can guarantee 24 continuous throughout the twenty-four hour24s.
The acoustic emission apparatus of Multi-target position of the invention, transmitting sound wave can using plurality of mobile phones as receiving end,
And WIFI and computer is combined to complete the accurate positioning to multiple target.
Detailed description of the invention
Fig. 1 is structural diagrams of the invention.
Fig. 2 is the structural diagrams of energy converter in the present invention.
Fig. 3 is the structural diagrams of close power amplifier in the present invention.
Fig. 4 is the structural diagrams of signal processor in the present invention.
Fig. 5 is the structural diagrams of Switching Power Supply in the present invention.
Figure label: 1 is the acoustic emission apparatus that can be used for Multi-target position, and 2 be cabinet, and 3 be energy converter, and 4 be switch
Power amplifier (contain transformer), 5 be signal processor, and 6 be Switching Power Supply, and 7 be energy converter attachment bolt, and 8 be energy converter rear end cap, 9
It is energy converter amplitude transformer for energy converter piezoelectric ceramic piece and voltage input end, 10,11 be transducer impedance matching layer, and 12 be transducing
Device impedance matching enhancement layer, 13 be the D-type power amplifier of bridge joint output, and 14 be transformer, and 15 be micro- place of signal processor
Device is managed, 16 be the filter of signal processor, and 17 be eight bit switches of signal processor, and 18 be the external trigger of signal processor
Signal input part.
Specific embodiment
Referring to Fig. 1, the present invention 1 can be fixed with bolt or steel band, when being used for constructing tunnel, can be fixed on two lining trolleys
Crossbeam on, energy converter transmitting terminal be directed toward construction face.Other application, the positioning required for guaranteeing that energy converter transmitting terminal is directed toward
Multiple target under the premise of, apparatus of the present invention can be fixed on i.e. usable on fixed or mobile bracket.The present invention is except available
It can be also used for square, meeting outside the positioning of construction personnel between two linings and face in the tunnel boring works such as railway, highway
The determination of the occasions personnel shift position and residence time such as exhibition, park.
Referring to Fig. 1, inputting 220V(100V to 240V to the acoustic emission apparatus 1 of Multi-target position can work) exchange
Alternating current turns on the switch, and the present apparatus is started to work.According to the needs of Multi-target position, open and close are instructed to letter by peripheral control unit
Number processor 5, signal processor 5 issue interval harmonic signal to close power amplifier 4, and 4 pairs of interval harmonic signals of close power amplifier carry out
It after amplification, then boosts through transformer, energy converter 3 is pushed to work.Interval simple harmonic quantity sound wave, interval simple harmonic quantity sound wave are issued by energy converter 3
The target point for needing to position is traveled to by air dielectric.By positioning target point equipment (such as mobile phone or other connect with sound wave
Receive and the equipment of wireless transmission function) speed propagated in air according to the propagation time and sound wave of sound wave launch point to target point
Degree, calculates target point to the distance of sound wave transmitting terminal, achieves positioning.Due to the acoustic emission apparatus of this patent be with
Emit sound wave in the angular air of certain transmitting, therefore reach the target in region in sound wave, as long as the sensitivity of accepting device is full
Foot requires, and can position to it, so the emitter can simultaneously position multiple target.
If Multi-target position of the apparatus of the present invention for highway, in railway tunnel construction between two linings and face,
Apparatus of the present invention 1 are fixed on the crossbeam of two lining trolleys, and the transmitting terminal of energy converter 3 is directed toward the center of face.By switching
The device coupler of power amplifier 6 inputs 220V alternating current, and Switching Power Supply 6 provides the direct current of positive and negative 15V to signal processor 5, gives
Close power amplifier 3 provides the direct current of positive and negative 80V and positive and negative 15V, and signal processor and close power amplifier are started to work.If spacer
From requiring farthest to reach 300 meters, trigger signal, signal processing are inputted by the outer triggering signal input terminal 18 of signal processor 5
Device 5 issues the intermittent sinusoidal signal of 8.5KHz, and signal duration 100ms is spaced 1s, this signal is input to D class power and puts
The power amplifier input terminal of big device 13, by 13 power amplifier output end to transformer 14 after amplifying, after transformer boosts, by transformation
Device exports the high voltage of peak value 280V, this voltage input to transducer voltage input terminal 9 pushes energy converter 3 to work.By transducing
Device 3 issues 8.5KHz, duration 100ms, is spaced the sound wave of 1s, Acoustic Wave Propagation to all constructors between two linings and face
On the mobile phone of member, signal is transferred to by WIFI by computer by mobile phone, every construction personnel is calculated to sound wave by computer
The distance between launch point achievees the purpose that instant dynamic multi-objective positioning.
Claims (7)
1. a kind of acoustic emission apparatus that can be used for Multi-target position, it is characterised in that by cabinet, energy converter, with transformer
Close power amplifier, signal processor and Switching Power Supply composition, energy converter, close power amplifier, signal processor, Switching Power Supply are assembled together
In in cabinet；
220V electric main is accessed, Switching Power Supply is powered to signal processor and close power amplifier, makes its work, signal processor is defeated
Interval harmonic signal out boosts after close power amplifier amplifies, then through transformer, supplies energy converter, evokes transducer vibrations；It changes
Target point needed for interval simple harmonic quantity sound wave is emitted to Multi-target position by energy device, makes the equipment of each target point according to sound wave in air
The speed of middle propagation and time determine target point with a distance from sound wave launch point, reach some transmitting multiple target simultaneously position
Purpose；
The signal processor is by microprocessor, filter, eight bit switches, outer triggering signal input terminal through circuit connection group
At, and have power input and signal output end；Under positive and negative 15V electric power thus supplied, provided between peak-to-peak value 8V for close power amplifier
It has a rest harmonic signal, the switching of external trigger and internal trigger is realized by adjusting eight bit switches, and adjust the on-off of output signal
Time guarantees that zero-signal exports during signal interruption.
2. the acoustic emission apparatus of Multi-target position according to claim 1, it is characterised in that the cabinet is cuboid
Shape, the square bodily form, hexahedron or tubular thin walled shell, material selection metal；The front end of energy converter is provided with safe gold
Belong to net, in addition, blocking without any other；220V exchange input socket and the signal input that water-proof function is additionally provided with above cabinet are defeated
Socket out, and four connecting accessories with integral installation.
3. the acoustic emission apparatus of Multi-target position according to claim 1 or 2, it is characterised in that the energy converter is by joining
Connecting bolt, rear end cap, piezoelectric ceramic piece and voltage input end, amplitude transformer, impedance matching layer, impedance matching enhancement layer are sequentially connected
Composition, together with rear end cap, piezoelectric ceramic piece are connected by bolts with amplitude transformer；Wherein, piezoelectric ceramic piece is ring structure, thick
Degree and inner and outer diameter are determined according to the frequency of sound wave emitted, are composed in series by the potsherd of 3 to 10 pieces of ring structures；The transducing
Device emits the interval simple harmonic quantity sound wave of a certain single-frequency in 7KHz to 20KHz frequency according to the needs of Multi-target position.
4. the acoustic emission apparatus of Multi-target position according to claim 3, it is characterised in that the energy converter is for hair
The interval simple harmonic quantity sound wave for penetrating determining frequency, if intensity is not able to satisfy the needs of multipoint positioning, by the identical energy converter group of performance
Paroxysm is penetrated.
5. the acoustic emission apparatus of Multi-target position according to claim 4, it is characterised in that the close power amplifier is by bridge
The D-type power amplifier and transformer for connecing output are sequentially connected composition, in positive and negative 80V and positive and negative 15V power supply power supply, defeated by power amplifier
Enter end input peak-to-peak value 8V interval harmonic signal in the case where, the power amplifier have power supply, signal, protection, slicing instruction,
The output of radiator fan power supply, temperature protection, middle point protection, under-voltage protection, overcurrent protection function, output end can export 1500
Watt power, voltage peak-to-peak value 180V, into transformer；Required for the power amplifier and output transformer cooperation output transducer
200V to 1500V high voltage.
6. the acoustic emission apparatus of the Multi-target position according to claim 5, it is characterised in that the Switching Power Supply is letter
Number processor provides positive and negative 15V power supply, provides positive and negative 80V and positive and negative 15V power supply for close power amplifier, guarantees signal processor and open
Power amplifier is closed to work normally.
7. the acoustic emission apparatus of Multi-target position according to claim 5, it is characterised in that the sound wave of transmitting can be with more
Portion's mobile phone combines WIFI and computer to complete the accurate positioning to multiple target as receiving end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359967.8A CN105891808B (en) | 2016-05-27 | 2016-05-27 | A kind of acoustic emission apparatus of Multi-target position |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359967.8A CN105891808B (en) | 2016-05-27 | 2016-05-27 | A kind of acoustic emission apparatus of Multi-target position |
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| CN105891808A CN105891808A (en) | 2016-08-24 |
| CN105891808B true CN105891808B (en) | 2019-02-26 |
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| CN113099405B (en) * | 2021-03-11 | 2021-12-17 | 武汉大学 | Audio positioning method based on emission angle estimation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4695987A (en) * | 1985-01-07 | 1987-09-22 | Hydroacoustics Inc. | Hydroacoustic apparatus |
| CN2160473Y (en) * | 1993-05-15 | 1994-04-06 | 温有奎 | Automatic frequency trancking power ultrasonic generator |
| CN100339721C (en) * | 2004-09-22 | 2007-09-26 | 中国船舶重工集团公司第七一五研究所 | Phase control transducer array and phase control method for acoustic Doppler ocean current profile instrument |
| CN102253368B (en) * | 2011-04-18 | 2013-03-20 | 杭州华韵天略电子科技有限公司 | Target positioning and tracking system based on ultrasonic waves |
| CN204009069U (en) * | 2014-08-01 | 2014-12-10 | 杭州创灿科技有限公司 | Location, a kind of seabed transponder |
| CN104306022B (en) * | 2014-10-24 | 2016-05-25 | 西安电子科技大学 | Realize the method for compressed sensing ultrasonic imaging with GPU |
| CN105261036A (en) * | 2015-09-17 | 2016-01-20 | 北京华航无线电测量研究所 | Object tracking method based on matching |
| CN205679760U (en) * | 2016-05-27 | 2016-11-09 | 复旦大学 | A kind of acoustic emission apparatus of Multi-target position |
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Effective date of registration: 20211206 Address after: 310051 room 1601, building B, No. 459, Qianmo Road, Xixing street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU JUSHENG TECHNOLOGY CO.,LTD. Address before: 200433 No. 220, Handan Road, Shanghai, Yangpu District Patentee before: FUDAN University |