CN104020488A - Wireless-distributed-type elastic wave reflector detection device, system and method - Google Patents
Wireless-distributed-type elastic wave reflector detection device, system and method Download PDFInfo
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- CN104020488A CN104020488A CN201410260279.7A CN201410260279A CN104020488A CN 104020488 A CN104020488 A CN 104020488A CN 201410260279 A CN201410260279 A CN 201410260279A CN 104020488 A CN104020488 A CN 104020488A
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Abstract
The invention discloses a wireless-distributed-type elastic wave reflector detection device, system and method. The device comprises a control terminal, a wireless data storage device, vibration signal receiving devices, a wireless data acquisition device and a vibration excitation device. A wireless three-dimensional space distributed-type elastic wave acquisition instrument, a wireless data storage instrument and a manpower small-energy hammering method are adopted so that a large number of elastic wave signals can be rapidly, conveniently and safely acquired. The eleven vibration signal receiving devices distributed in a three-dimensional space mode are used for acquiring thorough and complete three-dimensional space elastic wave field data with enough density, and therefore an accurate and high-precision geological three-dimensional image is obtained through analytical calculation. The wireless-distributed-type elastic wave reflector tracing analysis detection device has the advantages of being extremely high in signal-to-noise ratio, concise in structure, low in weight, low in energy consumption, safe in use, easy and convenient to install, high in measurement efficiency, high in detection precision, high in accuracy, large in detection range and the like.
Description
Technical field
The invention belongs to Geophysical technique field, available and the detection of tunnel geology advanced prediction, buried pile foundation detect, prospect and other geology detectings, are specifically related to a kind of wireless distributed elastic wave reflex body sniffer, system and method.
Background technology
At present, application seismic wave method carries out Geological Advanced Prediction, pile foundation detects, prospects and other geology detectings are the most frequently used one of methods the most efficiently.Seismic wave method principle of work is to utilize with arrangement mode, to excite elastic wave at tunnel surrounding, elastic wave is in the process of propagating to three dimensions, run into acoustic impedance interface, be interface, structure shatter belt, karst and the karst growth zone etc. that geologic lithology changes, can produce the reflex of elastic wave, the detector arrangement that this reflection wave is disposed in tunnel surrounding receives, be input to amplification, digital collection and the processing of in instrument, carrying out signal, realize and obtain tunnel, the geological information of tunnel front of tunnel heading or the structural information of buried pile foundation.
The geological condition in Rock And Soil excavation face the place ahead of the underground workss such as the application detectable tunnel of seismic wave method, tunnel, underground power house, try hard to grasp Rock-soil Mass Structure, character, the state in the place ahead before construction, and the geological informations such as situation, terrestrial stress situation are deposited in the tax of underground water, gas etc., for further constructing guidance be provided, to avoid, in construction and operation process, water burst, Gas Outburst, rock burst, large deformation etc. geologic hazard occurs, guarantee the safety of construction and carry out smoothly.
Application seismic wave method mainly depends on and following four aspects as accuracy and the precision of geology detecting: 1) use better method of testing to observe recording geometry, to obtain effective, enough three dimensions elastic wave field data; 2) design or improve surveying instrument/device used, improve precision and the accuracy of surveying instrument/device used, improve signal collected signal to noise ratio (S/N ratio); 3) research and application modern signal are eliminated noise and signal analysis and processing technology; 4) research and application elastic Wave Analysis and disposal route, improve accuracy and the precision of geology imaging.
In the prior art, for high accuracy and the precision of surveying is provided, conventionally adopt following measures: 1) improve exciting ability, as adopted explosive charge to produce the method for earthquake; 2) reduce look-in frequency; 3) raising modulus (A/D) is changed figure place, as adopts 32 moduluses (A/D) conversion; 4) adopt the more superior sensor of performance; 5) study and apply new elastic Wave Analysis and disposal route.
Above method mainly contains following problem: 1) depend merely on and improve modulus (A/D) conversion figure place (as adopted 32 analog to digital conversion), when analog to digital conversion figure place is brought up to a certain degree, be difficult to further improve signal to noise ratio (S/N ratio); 2) although reduce look-in frequency, detection range can be to a certain degree improved, detection resolution can be reduced; 3), can there is the danger of damage detected object in excessive raising exciting ability, and bring safely very large threat and harm to detecting workmen's life.Therefore how research improves wave velocity method geology detecting accuracy, precision and security have important practical significance.
Summary of the invention
The object of this invention is to provide a kind of wireless distributed elastic wave reflex body sniffer, system and method, the signal to noise ratio (S/N ratio) of installing in the present invention is high, structure is comparatively succinct and energy consumption is low, and in the present invention simultaneously, system and method is installed simple and fast, measured that efficiency is high, detection accuracy is high, accuracy is high and investigative range is large.
The technical scheme that realizes the object of the invention is: a kind of wireless distributed elastic wave reflex body sniffer, comprise control terminal, wireless data storage device, vibration signal receiving trap, wireless data acquisition device and vibrational excitation device, the output terminal of described vibration signal receiving trap is connected with the input end of described wireless data acquisition device, the output terminal of described wireless data acquisition device and described wireless data storage device wireless connections, described wireless data storage device and described control terminal wireless connections, described wireless data acquisition device comprises the sub-device of wireless signal acquiring, the sub-device of signal condition, A/D changes sub-device, the sub-device of radio communication and supplying cell, the input end of the sub-device of described wireless signal acquiring is connected with the output terminal of described vibration signal receiving trap, the output terminal of the sub-device of described wireless signal acquiring is connected with the input end of the sub-device of described signal condition, the output terminal of the sub-device of described signal condition is connected with the input end that described A/D changes sub-device, the output terminal that described A/D changes sub-device is connected with the input end of the sub-device of radio communication, the output terminal of the sub-device of described radio communication is connected with the input end of described wireless data storage device, described supplying cell and the sub-device of described signal condition, A/D changes sub-device, the sub-device of wireless signal acquiring, the power end of the sub-device of radio communication is connected.
Described wireless data storage device comprises that data store sub-device, the sub-device of slave computer radio communication, the sub-device of host computer radio communication and power supply, the input end of the sub-device of described slave computer radio communication and described wireless data acquisition device wireless connections, the input end that the output terminal of the sub-device of described slave computer radio communication is stored sub-device with described data is connected, the output terminal that described data are stored sub-device is connected with the input end of the sub-device of described host computer radio communication, the output terminal of the sub-device of described host computer radio communication and described control terminal wireless connections, described power supply and described data are stored sub-device, the sub-device of slave computer radio communication, the power end of the sub-device of host computer radio communication is connected.
The sub-device of radio communication of described wireless data acquisition device is based on 2.4GISM frequency range communicator, the sub-device involving vibrations of described wireless signal acquiring signal receiving cable, signal conditioning circuit, operational amplification circuit, A/D change-over circuit and radio communication circuit, the input end of described vibration signal receiving cable is connected with the output terminal of described vibration signal receiving trap, the output terminal of described vibration signal receiving cable passes through signal conditioning circuit successively, operational amplification circuit, after A/D change-over circuit, be connected with the input end of radio communication circuit, the input end wireless connections of the output terminal of described radio communication circuit and the sub-device of described signal condition.
The sub-device of slave computer radio communication of described wireless data storage device, the sub-device of host computer radio communication are based on 2.4GISM frequency range communicator and/or based on 802.11Nwifi communicator.
Described vibration signal receiving trap is accelerator sensor, and described vibrational excitation device, only for triggering vibration, does not have being connected on circuit with any equipment.
The present invention also provides a kind of wireless distributed elastic wave reflex body detection system, comprise a control terminal, a wireless data storage device, the vibration signal receiving trap of 11, the wireless data acquisition device of 11 and a vibrational excitation device, vibration signal receiving trap is connected in pairs with wireless data acquisition device and the output terminal of vibration signal receiving trap and the input end of described wireless data acquisition device are connected, the output terminal of wireless data acquisition device and the input end of wireless data storage device are by different channels wireless connections, the output terminal of wireless data storage device is connected with described control terminal.
Described vibration signal receiving trap is 11, comprise the first vibration signal receiving trap, the second vibration signal receiving trap, the 3rd vibration signal receiving trap, the 4th vibration signal receiving trap, the 5th vibration signal receiving trap, the 6th vibration signal receiving trap, the 7th vibration signal receiving trap, the 8th vibration signal receiving trap, the 9th vibration signal receiving trap, the tenth vibration signal receiving trap, the 11 vibration signal receiving trap, described wireless data acquisition device is 11, comprise the first wireless data acquisition device, the second wireless data acquisition device, the 3rd wireless data acquisition device, the 4th wireless data acquisition device, the 5th wireless data acquisition device, the 6th wireless data acquisition device, the 7th wireless data acquisition device, the 8th wireless data acquisition device, the 9th wireless data acquisition device, the tenth wireless data acquisition device, the 11 wireless data acquisition device, the output terminal of described the first vibration signal receiving trap is connected with the input end of described the first wireless data acquisition device, the output terminal of described the second vibration signal receiving trap is connected with the input end of described the second wireless data acquisition device, the output terminal of described the 3rd vibration signal receiving trap is connected with the input end of described the 3rd wireless data acquisition device, the output terminal of described the 4th vibration signal receiving trap is connected with the input end of described the 4th wireless data acquisition device, the output terminal of described the 5th vibration signal receiving trap is connected with the input end of described the 5th wireless data acquisition device, the output terminal of described the 6th vibration signal receiving trap is connected with the input end of described the 6th wireless data acquisition device, the output terminal of described the 7th vibration signal receiving trap is connected with the input end of described the 7th wireless data acquisition device, the output terminal of described the 8th vibration signal receiving trap is connected with the input end of described the 8th wireless data acquisition device, the output terminal of described the 9th vibration signal receiving trap is connected with the input end of described the 9th wireless data acquisition device, the output terminal of described the tenth vibration signal receiving trap is connected with the input end of described the tenth wireless data acquisition device, the output terminal of described the 11 vibration signal receiving trap is connected with the input end of described the 11 wireless data acquisition device,
Be positioned at face rear tunneling apart from ten meters to 25 meters tunnel construction sections of face, 11 vibration signal receiving traps are evenly installed, and 11 vibration signal receiving traps are 3 D stereo and evenly arrange in tunnel construction sections.
The first vibration signal receiving trap is arranged on the source location that exciting device produces;
The second vibration signal receiving trap be arranged on left tunnel wall, apart from 12 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 3rd vibration signal receiving trap be arranged on Tunnel Right wall, apart from 12 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 4th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 17 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The 5th vibration signal receiving trap be arranged on tunnel top central authorities, apart from 17 meters, face;
The 6th vibration signal receiving trap be arranged on left tunnel wall, apart from 17 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The 7th vibration signal receiving trap be arranged on left tunnel wall, apart from 22 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 8th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 22 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 9th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 27 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The tenth vibration signal receiving trap be arranged on tunnel top central authorities, apart from 27 meters, face;
The 11 vibration signal receiving trap be arranged on Tunnel Right wall, apart from 27 meters, face, apart from floor level be ground arrive tunnel top high 1/4th.
The stress wave direction of 11 vibration signal receiving trap acceptance is for prolonging tunnel axis direction.
The present invention also provides a kind of wireless distributed elastic wave reflex body detection method, comprises the steps:
Steps A) totally ten two exciting points: first exciting point selection be located at left tunnel wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/8th; Second exciting point selection be located at left tunnel wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 3rd exciting point selection be located at left tunnel wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/2nd; The 4th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 5th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 6th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/2nd; The 7th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 8th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 9th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/2nd; The tenth exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 11 exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 12 exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/2nd;
Step B) use described exciting device at each exciting point, to excite vibrations respectively, trigger and be arranged on all described vibration signal receiving traps and described wireless data acquisition device synchronous acquisition vibration signal in tunnel simultaneously;
Step C) shock wave that described exciting device excites is directly by first vibration signal receiving trap, and collected by wireless data acquisition device described in first; This shock wave is directly received by described wireless data storage device simultaneously, and take this signal as trigger pip synchronously triggers second and third, four, five, six, seven, eight, nine, ten, 11 wireless data acquisition devices start to gather;
While step D) exciting shock wave to encounter the place ahead impedance interface in communication process, can reflect at every turn, refraction, diffraction, these excite the shock wave holographic signal that excavation section is propagated in tunnel all can by described second and third, four, five, six, seven, eight, nine, ten, 11 vibration signal receiving traps receive, and are collected by the described wireless data acquisition device of each correspondence;
Step e) described in each, wireless data acquisition device sends to described wireless data storage device by the holographic signal collecting by wireless mode again;
Step F) described wireless data storage device sends to described operation control terminal by all data that receive by 802.11nWIFI mode again;
Step G) described operation control terminal carries out analyzing and processing after receiving whole vibration signal data, and draws and generate tunnel not hologram three-dimensional image and the image of the geologic structure of excavation section.
The present invention has positive effect: the invention provides a kind of wireless distributed elastic wave reflex body sniffer, system and method, adopt the spatially distributed elastic wave acquisition instrument of Wireless stereo, wireless data storage apparatus and the little energy hammering of manpower mode, can be fast, convenient and safe collect a large amount of elastic wave signals; Modulus (A/D) conversion, signal conditioning circuit, the operational amplification circuit that adopt seniority, significantly improve signal to noise ratio (S/N ratio), can collect elastic wave signal accurately; Employing first independently arranges filtering parameter mode to individual signals and carries out filtering, then applies two-dimensional filtering method, further improves the signal to noise ratio (S/N ratio) of signal; The vibration signal receiving trap that adopts a plurality of (11) solid space to distribute can collect three dimensions elastic wave field data sufficient, complete, sufficient density, thereby analytical calculation obtains accurately, high-precision geology three-dimensional imaging.The spatially distributed elastic wave reflex body of Wireless stereo follow-up analysis sniffer has the advantages such as signal to noise ratio (S/N ratio) is high, simple for structure, light, energy consumption is low, use is safe, and the spatially distributed elastic wave reflex body of Wireless stereo follow-up analysis system has the simple and fast of installation, measures the advantages such as efficiency is high, detection accuracy is high, accuracy is high, investigative range is large.
Accompanying drawing explanation
For content of the present invention is more likely to be clearly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation below, wherein:
Fig. 1 is the spatially distributed elastic wave reflex body of Wireless stereo provided by the invention follow-up analysis detection system principle schematic.
Fig. 2 is that the measuring point of the spatially distributed elastic wave reflex body of Wireless stereo provided by the invention follow-up analysis detection system is arranged and exciting point cross sectional arrangement schematic diagram.
Fig. 3 is that the measuring point of the spatially distributed elastic wave reflex body of Wireless stereo provided by the invention follow-up analysis detection system is arranged and exciting point floor plan schematic diagram.
Wherein: in Fig. 2 and Fig. 3, " * " is exciting point, and " " is sensor.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 3 has shown a kind of embodiment of the present invention, and wherein Fig. 1 is the spatially distributed elastic wave reflex body of Wireless stereo provided by the invention follow-up analysis detection system principle schematic.Fig. 2 is that the measuring point of the spatially distributed elastic wave reflex body of Wireless stereo provided by the invention follow-up analysis detection system is arranged and exciting point cross sectional arrangement schematic diagram.Fig. 3 is that the measuring point of the spatially distributed elastic wave reflex body of Wireless stereo provided by the invention follow-up analysis detection system is arranged and exciting point floor plan schematic diagram.
See Fig. 1, a kind of wireless distributed elastic wave reflex body sniffer, comprise control terminal, wireless data storage device, vibration signal receiving trap, wireless data acquisition device and vibrational excitation device, the output terminal of described vibration signal receiving trap is connected with the input end of described wireless data acquisition device, the output terminal of described wireless data acquisition device and described wireless data storage device wireless connections, described wireless data storage device and described control terminal wireless connections, described wireless data acquisition device comprises the sub-device of wireless signal acquiring, the sub-device of signal condition, A/D changes sub-device, the sub-device of radio communication and supplying cell, the input end of the sub-device of described wireless signal acquiring is connected with the output terminal of described vibration signal receiving trap, the output terminal of the sub-device of described wireless signal acquiring is connected with the input end of the sub-device of described signal condition, the output terminal of the sub-device of described signal condition is connected with the input end that described A/D changes sub-device, the output terminal that described A/D changes sub-device is connected with the input end of the sub-device of radio communication, the output terminal of the sub-device of described radio communication is connected with the input end of described wireless data storage device, described supplying cell and the sub-device of described signal condition, A/D changes sub-device, the sub-device of wireless signal acquiring, the power end of the sub-device of radio communication is connected.
Described wireless data storage device comprises that data store sub-device, the sub-device of slave computer radio communication, the sub-device of host computer radio communication and power supply, the input end of the sub-device of described slave computer radio communication and described wireless data acquisition device wireless connections, the input end that the output terminal of the sub-device of described slave computer radio communication is stored sub-device with described data is connected, the output terminal that described data are stored sub-device is connected with the input end of the sub-device of described host computer radio communication, the output terminal of the sub-device of described host computer radio communication and described control terminal wireless connections, described power supply and described data are stored sub-device, the sub-device of slave computer radio communication, the power end of the sub-device of host computer radio communication is connected.
The sub-device of radio communication of described wireless data acquisition device is based on 2.4GISM frequency range communicator, the sub-device involving vibrations of described wireless signal acquiring signal receiving cable, signal conditioning circuit, operational amplification circuit, A/D change-over circuit and radio communication circuit, the input end of described vibration signal receiving cable is connected with the output terminal of described vibration signal receiving trap, the output terminal of described vibration signal receiving cable passes through signal conditioning circuit successively, operational amplification circuit, after A/D change-over circuit, be connected with the input end of radio communication circuit, the input end wireless connections of the output terminal of described radio communication circuit and the sub-device of described signal condition.
The sub-device of slave computer radio communication of described wireless data storage device, the sub-device of host computer radio communication are based on 2.4GISM frequency range communicator and/or based on 802.11Nwifi communicator.
Described vibration signal receiving trap is accelerator sensor, and described vibrational excitation device, only for triggering vibration, does not have being connected on circuit with any equipment.
Operation control terminal can be notebook computer, panel computer or smart mobile phone; Be mainly used in configuring wireless data storage device, wireless data acquisition device, receive, preserve elastic wave signal data, the line number of going forward side by side Data preprocess.Vibrational excitation device is 12 pounds of iron hammers or magnetostriction focus; Vibrational excitation device, only for triggering vibration, does not have being connected on circuit with any equipment.
See that Fig. 1 the present invention also provides a kind of wireless distributed elastic wave reflex body detection system, comprise a control terminal, a wireless data storage device, the vibration signal receiving trap of 11, the wireless data acquisition device of 11 and a vibrational excitation device, vibration signal receiving trap is connected in pairs with wireless data acquisition device and the output terminal of vibration signal receiving trap and the input end of described wireless data acquisition device are connected, the output terminal of wireless data acquisition device and the input end of wireless data storage device are by different channels wireless connections, the output terminal of wireless data storage device is connected with described control terminal.
Described vibration signal receiving trap is 11, comprise the first vibration signal receiving trap, the second vibration signal receiving trap, the 3rd vibration signal receiving trap, the 4th vibration signal receiving trap, the 5th vibration signal receiving trap, the 6th vibration signal receiving trap, the 7th vibration signal receiving trap, the 8th vibration signal receiving trap, the 9th vibration signal receiving trap, the tenth vibration signal receiving trap, the 11 vibration signal receiving trap, described wireless data acquisition device is 11, comprise the first wireless data acquisition device, the second wireless data acquisition device, the 3rd wireless data acquisition device, the 4th wireless data acquisition device, the 5th wireless data acquisition device, the 6th wireless data acquisition device, the 7th wireless data acquisition device, the 8th wireless data acquisition device, the 9th wireless data acquisition device, the tenth wireless data acquisition device, the 11 wireless data acquisition device, the output terminal of described the first vibration signal receiving trap is connected with the input end of described the first wireless data acquisition device, the output terminal of described the second vibration signal receiving trap is connected with the input end of described the second wireless data acquisition device, the output terminal of described the 3rd vibration signal receiving trap is connected with the input end of described the 3rd wireless data acquisition device, the output terminal of described the 4th vibration signal receiving trap is connected with the input end of described the 4th wireless data acquisition device, the output terminal of described the 5th vibration signal receiving trap is connected with the input end of described the 5th wireless data acquisition device, the output terminal of described the 6th vibration signal receiving trap is connected with the input end of described the 6th wireless data acquisition device, the output terminal of described the 7th vibration signal receiving trap is connected with the input end of described the 7th wireless data acquisition device, the output terminal of described the 8th vibration signal receiving trap is connected with the input end of described the 8th wireless data acquisition device, the output terminal of described the 9th vibration signal receiving trap is connected with the input end of described the 9th wireless data acquisition device, the output terminal of described the tenth vibration signal receiving trap is connected with the input end of described the tenth wireless data acquisition device, the output terminal of described the 11 vibration signal receiving trap is connected with the input end of described the 11 wireless data acquisition device,
Be positioned at face rear tunneling apart from ten meters to 25 meters tunnel construction sections of face, 11 vibration signal receiving traps are evenly installed, and 11 vibration signal receiving traps are 3 D stereo and evenly arrange in tunnel construction sections.
The first vibration signal receiving trap is arranged on the source location that exciting device produces;
The second vibration signal receiving trap be arranged on left tunnel wall, apart from 12 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 3rd vibration signal receiving trap be arranged on Tunnel Right wall, apart from 12 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 4th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 17 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The 5th vibration signal receiving trap be arranged on tunnel top central authorities, apart from 17 meters, face;
The 6th vibration signal receiving trap be arranged on left tunnel wall, apart from 17 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The 7th vibration signal receiving trap be arranged on left tunnel wall, apart from 22 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 8th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 22 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 9th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 27 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The tenth vibration signal receiving trap be arranged on tunnel top central authorities, apart from 27 meters, face;
The 11 vibration signal receiving trap be arranged on Tunnel Right wall, apart from 27 meters, face, apart from floor level be ground arrive tunnel top high 1/4th.
The stress wave direction of 11 vibration signal receiving trap acceptance is for prolonging tunnel axis direction.
See shown in Fig. 2 and Fig. 3, its concrete case study on implementation is as follows: comprise the steps:
Steps A) totally ten two exciting points: first exciting point selection be located at left tunnel wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/8th; Second exciting point selection be located at left tunnel wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 3rd exciting point selection be located at left tunnel wall, apart from area and two meters, apart from floor level be ground arrive tunnel top high 1/2nd; The 4th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 5th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 6th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/2nd; The 7th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 8th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 9th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/2nd; The tenth exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 11 exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 12 exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/2nd;
Step B) use described exciting device at each exciting point, to excite vibrations respectively, trigger and be arranged on all described vibration signal receiving traps and described wireless data acquisition device synchronous acquisition vibration signal in tunnel simultaneously;
Step C) shock wave that described exciting device excites is directly by first vibration signal receiving trap, and collected by wireless data acquisition device described in first; This shock wave is directly received by described wireless data storage device simultaneously, and take this signal as trigger pip synchronously triggers second and third, four, five, six, seven, eight, nine, ten, 11 wireless data acquisition devices start to gather;
While step D) exciting shock wave to encounter the place ahead impedance interface in communication process, can reflect at every turn, refraction, diffraction, these excite the shock wave holographic signal that excavation section is propagated in tunnel all can by described second and third, four, five, six, seven, eight, nine, ten, 11 vibration signal receiving traps receive, and are collected by the described wireless data acquisition device of each correspondence;
Step e) described in each, wireless data acquisition device sends to described wireless data storage device by the holographic signal collecting by wireless mode again;
Step F) described wireless data storage device sends to described operation control terminal by all data that receive by 802.11nWIFI mode again;
Step G) described operation control terminal carries out analyzing and processing after receiving whole vibration signal data, and draws and generate tunnel not hologram three-dimensional image and the image of the geologic structure of excavation section.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And these belong to apparent variation or the change that connotation of the present invention extends out and still belong to protection scope of the present invention.
Claims (10)
1. a wireless distributed elastic wave reflex body sniffer, it is characterized in that: comprise control terminal, wireless data storage device, vibration signal receiving trap, wireless data acquisition device and vibrational excitation device, the output terminal of described vibration signal receiving trap is connected with the input end of described wireless data acquisition device, the output terminal of described wireless data acquisition device and described wireless data storage device wireless connections, described wireless data storage device and described control terminal wireless connections, described wireless data acquisition device comprises the sub-device of wireless signal acquiring, the sub-device of signal condition, A/D changes sub-device, the sub-device of radio communication and supplying cell, the input end of the sub-device of described wireless signal acquiring is connected with the output terminal of described vibration signal receiving trap, the output terminal of the sub-device of described wireless signal acquiring is connected with the input end of the sub-device of described signal condition, the output terminal of the sub-device of described signal condition is connected with the input end that described A/D changes sub-device, the output terminal that described A/D changes sub-device is connected with the input end of the sub-device of radio communication, the output terminal of the sub-device of described radio communication is connected with the input end of described wireless data storage device, described supplying cell and the sub-device of described signal condition, A/D changes sub-device, the sub-device of wireless signal acquiring, the power end of the sub-device of radio communication is connected.
2. wireless distributed elastic wave reflex body sniffer according to claim 1, it is characterized in that: described wireless data storage device comprises that data store sub-device, the sub-device of slave computer radio communication, the sub-device of host computer radio communication and power supply, the input end of the sub-device of described slave computer radio communication and described wireless data acquisition device wireless connections, the input end that the output terminal of the sub-device of described slave computer radio communication is stored sub-device with described data is connected, the output terminal that described data are stored sub-device is connected with the input end of the sub-device of described host computer radio communication, the output terminal of the sub-device of described host computer radio communication and described control terminal wireless connections, described power supply and described data are stored sub-device, the sub-device of slave computer radio communication, the power end of the sub-device of host computer radio communication is connected.
3. wireless distributed elastic wave reflex body sniffer according to claim 2, it is characterized in that: the sub-device of radio communication of described wireless data acquisition device is based on 2.4GISM frequency range communicator, the sub-device involving vibrations of described wireless signal acquiring signal receiving cable, signal conditioning circuit, operational amplification circuit, A/D change-over circuit and radio communication circuit, the input end of described vibration signal receiving cable is connected with the output terminal of described vibration signal receiving trap, the output terminal of described vibration signal receiving cable passes through signal conditioning circuit successively, operational amplification circuit, after A/D change-over circuit, be connected with the input end of radio communication circuit, the input end wireless connections of the output terminal of described radio communication circuit and the sub-device of described signal condition.
4. wireless distributed elastic wave reflex body sniffer according to claim 3, is characterized in that: the sub-device of slave computer radio communication of described wireless data storage device, the sub-device of host computer radio communication are based on 2.4GISM frequency range communicator and/or based on 802.11Nwifi communicator.
According to claim 1 to wireless distributed elastic wave reflex body sniffer described in any one in claim 4, it is characterized in that: described vibration signal receiving trap is accelerator sensor, described vibrational excitation device, only for triggering vibration, does not have being connected on circuit with any equipment.
6. wireless distributed elastic wave reflex body detection system according to claim 5, it is characterized in that: comprise a control terminal, a wireless data storage device, the vibration signal receiving trap of 11, the wireless data acquisition device of 11 and a vibrational excitation device, vibration signal receiving trap is connected in pairs with wireless data acquisition device and the output terminal of vibration signal receiving trap and the input end of described wireless data acquisition device are connected, the output terminal of wireless data acquisition device and the input end of wireless data storage device are by different channels wireless connections, the output terminal of wireless data storage device is connected with described control terminal.
7. wireless distributed elastic wave reflex body detection system according to claim 6, it is characterized in that: described vibration signal receiving trap is 11, comprise the first vibration signal receiving trap, the second vibration signal receiving trap, the 3rd vibration signal receiving trap, the 4th vibration signal receiving trap, the 5th vibration signal receiving trap, the 6th vibration signal receiving trap, the 7th vibration signal receiving trap, the 8th vibration signal receiving trap, the 9th vibration signal receiving trap, the tenth vibration signal receiving trap, the 11 vibration signal receiving trap, described wireless data acquisition device is 11, comprise the first wireless data acquisition device, the second wireless data acquisition device, the 3rd wireless data acquisition device, the 4th wireless data acquisition device, the 5th wireless data acquisition device, the 6th wireless data acquisition device, the 7th wireless data acquisition device, the 8th wireless data acquisition device, the 9th wireless data acquisition device, the tenth wireless data acquisition device, the 11 wireless data acquisition device, the output terminal of described the first vibration signal receiving trap is connected with the input end of described the first wireless data acquisition device, the output terminal of described the second vibration signal receiving trap is connected with the input end of described the second wireless data acquisition device, the output terminal of described the 3rd vibration signal receiving trap is connected with the input end of described the 3rd wireless data acquisition device, the output terminal of described the 4th vibration signal receiving trap is connected with the input end of described the 4th wireless data acquisition device, the output terminal of described the 5th vibration signal receiving trap is connected with the input end of described the 5th wireless data acquisition device, the output terminal of described the 6th vibration signal receiving trap is connected with the input end of described the 6th wireless data acquisition device, the output terminal of described the 7th vibration signal receiving trap is connected with the input end of described the 7th wireless data acquisition device, the output terminal of described the 8th vibration signal receiving trap is connected with the input end of described the 8th wireless data acquisition device, the output terminal of described the 9th vibration signal receiving trap is connected with the input end of described the 9th wireless data acquisition device, the output terminal of described the tenth vibration signal receiving trap is connected with the input end of described the tenth wireless data acquisition device, the output terminal of described the 11 vibration signal receiving trap is connected with the input end of described the 11 wireless data acquisition device,
Be positioned at face rear tunneling apart from ten meters to 25 meters tunnel construction sections of face, 11 vibration signal receiving traps are evenly installed, and 11 vibration signal receiving traps are 3 D stereo and evenly arrange in tunnel construction sections.
8. wireless distributed elastic wave reflex body detection system according to claim 7, is characterized in that: the first vibration signal receiving trap is arranged on the source location that exciting device produces;
The second vibration signal receiving trap be arranged on left tunnel wall, apart from 12 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 3rd vibration signal receiving trap be arranged on Tunnel Right wall, apart from 12 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 4th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 17 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The 5th vibration signal receiving trap be arranged on tunnel top central authorities, apart from 17 meters, face;
The 6th vibration signal receiving trap be arranged on left tunnel wall, apart from 17 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The 7th vibration signal receiving trap be arranged on left tunnel wall, apart from 22 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 8th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 22 meters, face, apart from floor level be ground arrive tunnel top high 3/4ths;
The 9th vibration signal receiving trap be arranged on Tunnel Right wall, apart from 27 meters, face, apart from floor level be ground arrive tunnel top high 1/4th;
The tenth vibration signal receiving trap be arranged on tunnel top central authorities, apart from 27 meters, face;
The 11 vibration signal receiving trap be arranged on Tunnel Right wall, apart from 27 meters, face, apart from floor level be ground arrive tunnel top high 1/4th.
9. wireless distributed elastic wave reflex body detection system according to claim 8, is characterized in that: the stress wave direction of 11 vibration signal receiving trap acceptance is for prolonging tunnel axis direction.
According to claim 6 to the wireless distributed elastic wave reflex body detection method described in any one in claim 7, it is characterized in that: comprise the steps:
Steps A) totally ten two exciting points: first exciting point selection be located at left tunnel wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/8th; Second exciting point selection be located at left tunnel wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 3rd exciting point selection be located at left tunnel wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/2nd; The 4th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 5th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 6th exciting point selection be located at left tunnel wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/2nd; The 7th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 8th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 9th exciting point selection be located at Tunnel Right wall, apart from two meters, face, apart from floor level be ground arrive tunnel top high 1/2nd; The tenth exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/8th; The 11 exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/4th; The 12 exciting point selection be located at Tunnel Right wall, apart from four meters, face, apart from floor level be ground arrive tunnel top high 1/2nd;
Step B) use described exciting device at each exciting point, to excite vibrations respectively, trigger and be arranged on all described vibration signal receiving traps and described wireless data acquisition device synchronous acquisition vibration signal in tunnel simultaneously;
Step C) shock wave that described exciting device excites is directly by first vibration signal receiving trap, and collected by wireless data acquisition device described in first; This shock wave is directly received by described wireless data storage device simultaneously, and take this signal as trigger pip synchronously triggers second and third, four, five, six, seven, eight, nine, ten, 11 wireless data acquisition devices start to gather;
While step D) exciting shock wave to encounter the place ahead impedance interface in communication process, can reflect at every turn, refraction, diffraction, these excite the shock wave holographic signal that excavation section is propagated in tunnel all can by described second and third, four, five, six, seven, eight, nine, ten, 11 vibration signal receiving traps receive, and are collected by the described wireless data acquisition device of each correspondence;
Step e) described in each, wireless data acquisition device sends to described wireless data storage device by the holographic signal collecting by wireless mode again;
Step F) described wireless data storage device sends to described operation control terminal by all data that receive by 802.11nWIFI mode again;
Step G) described operation control terminal carries out analyzing and processing after receiving whole vibration signal data, and draws and generate tunnel not hologram three-dimensional image and the image of the geologic structure of excavation section.
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Denomination of invention: Wireless distributed elastic wave reflector detection device, system and method Effective date of registration: 20211220 Granted publication date: 20171020 Pledgee: Bank of Chengdu science and technology branch of Limited by Share Ltd. Pledgor: CHENGDU CHANGDATONG INSPECTION & TESTING TECHNOLOGY STOCK CO.,LTD. Registration number: Y2021510000299 |