CN214703435U - Acoustic positioning device - Google Patents
Acoustic positioning device Download PDFInfo
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- CN214703435U CN214703435U CN202120345313.6U CN202120345313U CN214703435U CN 214703435 U CN214703435 U CN 214703435U CN 202120345313 U CN202120345313 U CN 202120345313U CN 214703435 U CN214703435 U CN 214703435U
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- 238000006243 chemical reaction Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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Abstract
The utility model relates to an acoustic positioning device, which comprises a plurality of strain gauge sensors, a data acquisition and processing device and a data receiving device, wherein the plurality of strain gauge sensors are used for converting stress waves generated by a structural body to be detected into electric signals and outputting the electric signals after processing; the data acquisition processing device comprises a first box body, a data acquisition circuit board, a data processing circuit board and a Wi-Fi module, wherein the first box body is provided with a plurality of signal transmission interfaces, the data acquisition circuit board is connected with the plurality of signal transmission interfaces through a plurality of signal transmission lines, each strain gauge sensor is connected with one signal transmission interface through a lead, and the data acquisition circuit board, the data processing circuit board and the Wi-Fi module are electrically connected in sequence; the data receiving device is in wireless connection with the Wi-Fi module and used for receiving the positioning signals sent by the Wi-Fi module. The utility model provides a monitoring and collection system installation when present sound is detected a flaw with the operation complicated, gather and the big problem of the later maintenance degree of difficulty.
Description
Technical Field
The utility model relates to a technical field is detected a flaw to the structure, especially relates to an acoustics positioner.
Background
The acoustic emission phenomenon is captured in time along with the physical phenomenon of acoustic emission in the structural damage evolution process, and the damage identification and positioning of the structural body can be realized by analyzing the acoustic emission signal. Therefore, it is very important to timely and accurately monitor and collect the acoustic phenomena generated by the structure in different scenes.
However, most of the existing monitoring and acquisition devices are complex and heavy, the installation and operation processes are complex, certain damage can be caused to the structure, and the traditional modes such as cable remote output are still adopted for data information transmission in the current most of acquisition schemes, so that the acquisition and later maintenance difficulty is increased.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide an acoustic positioning device, which is used to solve the problems of complicated installation and operation of the current monitoring and collecting device during sound flaw detection and great difficulty in collection and later maintenance.
The utility model provides an acoustic positioning device, which comprises a plurality of strain gauge sensors, a data acquisition and processing device and a data receiving device, wherein,
the strain gauge sensors are arranged on the structural body to be detected and used for converting stress waves generated by the structural body to be detected into electric signals and outputting the electric signals after processing;
the data acquisition processing device comprises a first box body, a data acquisition circuit board, a data processing circuit board and a Wi-Fi module, wherein the data acquisition circuit board, the data processing circuit board and the Wi-Fi module are all arranged in the first box body, the first box body is provided with a plurality of signal transmission interfaces, the data acquisition circuit board is connected with the signal transmission interfaces through a plurality of signal transmission lines, each strain gauge sensor is connected with one signal transmission interface through a lead, the data acquisition circuit board, the data processing circuit board and the Wi-Fi module are sequentially and electrically connected, the data acquisition circuit board is used for performing analog-to-digital conversion on processed electric signals, and the data processing circuit board is used for outputting positioning signals according to the signals subjected to the analog-to-digital conversion;
the data receiving device is in wireless connection with the Wi-Fi module and is used for receiving the positioning signals sent by the Wi-Fi module.
Preferably, in the acoustic positioning device, the strain gauge sensor includes a housing, a PTZ sheet, a magnet sheet, an insulating spacer and a filter circuit, the PTZ sheet, the magnet sheet, the insulating spacer and the filter circuit are sequentially disposed in the housing from bottom to top, the PTZ sheet is electrically connected to the filter circuit, and the filter circuit is connected to the signal transmission interface through a wire.
Preferably, in the acoustic positioning device, an FPGA chip is integrated on the data acquisition circuit board, and the FPGA chip is connected to the plurality of signal transmission interfaces through the plurality of signal transmission lines.
Preferably, in the acoustic positioning device, a raspberry pi chip is integrated on the data processing circuit board, the raspberry pi chip is electrically connected with the FPGA chip, and the raspberry pi chip is further electrically connected with the Wi-Fi module.
Preferably, in the acoustic positioning device, the Wi-Fi module is a Wi-Fi chip.
Preferably, in the acoustic positioning device, a power transformer is further arranged in the first box, a first power interface is further formed in the first box, the power transformer is connected with a power supply through the first power interface, and the power transformer is used for supplying power to the data acquisition circuit board, the data processing circuit board and the Wi-Fi module after voltage stabilization processing is performed on an accessed power supply.
Preferably, in the acoustic positioning device, the data receiving device includes a second box, a signal receiving circuit board and a signal antenna, the signal receiving circuit board and the signal antenna are both disposed inside the second box, the signal receiving circuit board is electrically connected to the signal antenna, and the signal receiving circuit board receives the positioning signal sent by the Wi-Fi module through the signal antenna.
Preferably, in the acoustic positioning device, the second housing is further provided with a USB interface.
Preferably, in the acoustic positioning device, the second box is further provided with a second power interface.
Compared with the prior art, the embodiment of the utility model provides an acoustic positioner is through the collection with the signal and processing function integration data acquisition processing apparatus is last for acoustic acquisition device's structure is more miniaturized, and data processing apparatus modularization makes monitoring and acquisition device easy to assemble more and the maintenance in later stage. In addition, the Wi-Fi module is integrated on the data acquisition and processing device, so that the data acquisition and processing device and the data receiving device are designed in a split mode, the installation and the maintenance are further facilitated, and the adoption of cables for remote signal transmission is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of an acoustic positioning apparatus provided in the present invention;
fig. 2 is a schematic structural diagram of a preferred embodiment of the data acquisition and processing device in the acoustic positioning device provided by the present invention;
fig. 3 is a schematic structural diagram of a preferred embodiment of the strain gauge sensor in the acoustic positioning apparatus provided by the present invention;
fig. 4 is a schematic structural diagram of a preferred embodiment of the data receiving device in the acoustic positioning apparatus provided by the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.
Referring to fig. 1 and fig. 2, an acoustic positioning device provided in an embodiment of the present invention includes a plurality of strain gauge sensors 1, a data acquisition and processing device 2, and a data receiving device 3.
The strain gauge sensors 1 are arranged on the structural body 4 to be detected and used for converting stress waves generated by the structural body 4 to be detected into electric signals and outputting the electric signals after the electric signals are processed.
The data acquisition processing device 2 comprises a first box body 21, a data acquisition circuit board 22, a data processing circuit board 23 and a Wi-Fi module 24, the data acquisition circuit board 22, the data processing circuit board and the Wi-Fi module are all arranged in the first box body 21, the first box 21 is provided with a plurality of signal transmission interfaces 211, the data acquisition circuit board 22 is connected with the plurality of signal transmission interfaces 211 through a plurality of signal transmission lines 25, each strain gauge sensor 1 is respectively connected with one signal transmission interface 211 through a lead 5, the data acquisition circuit board 22, the data processing circuit board 23 and the Wi-Fi module 24 are electrically connected in sequence, the data acquisition circuit board 22 is configured to perform analog-to-digital conversion on the processed electrical signal, and the data processing circuit board 23 is configured to output a positioning signal according to the analog-to-digital converted signal.
The data receiving device 3 is wirelessly connected to the Wi-Fi module 24, and is configured to receive a positioning signal sent by the Wi-Fi module 24.
Specifically, when the metal structure 4 is excited by the excitation device, a structural damage may occur or a stress wave may be generated along with the change process, the strain gauge sensor 1 may convert the stress wave into an electrical signal through a piezoelectric effect of the strain gauge sensor, then process and output the electrical signal to realize signal acquisition, then perform analog-to-digital conversion through the data acquisition circuit board 22 in the data acquisition and processing device 2, output the signal to the data processing circuit board 23 to process to obtain a positioning signal to realize the positioning of the damage, and finally wirelessly transmit the positioning signal to the data receiving device 3 through the Wi-Fi module 24, and the data receiving device 3 may store and transmit the positioning signal to an upper computer to further realize the positioning of the damage of the structure 4 to be measured.
The embodiment of the utility model provides an acoustics positioner is integrated through the collection with the processing function of signal data acquisition processing apparatus 2 is last for acoustics collection system's structure is more miniaturized, and data processing apparatus modularization makes monitoring and collection system easy to assemble more and the maintenance in later stage. In addition, the Wi-Fi module 24 is integrated on the data acquisition and processing device 2, so that the data acquisition and processing device 2 and the data receiving device 3 are designed separately, the installation and the maintenance are further convenient, and the adoption of cables for remote signal transmission is also avoided.
In a further embodiment, referring to fig. 3, the strain gauge sensor 1 includes a housing 11, a PTZ sheet 12, a magnet sheet 13, an insulating spacer 14, and a filter circuit 15, where the PTZ sheet 12, the magnet sheet 13, the insulating spacer 14, and the filter circuit 15 are sequentially disposed in the housing 11 from bottom to top, the PTZ sheet 12 is electrically connected to the filter circuit 15, and the filter circuit 15 is connected to a signal transmission interface 211 through a wire 5.
Specifically, when the structural body 4 to be measured is excited to generate stress waves, the PTZ sheet 12 converts the stress waves into electrical signals through the piezoelectric effect of the PTZ sheet, the electrical signals are transmitted to the filter circuit 15 through the wires respectively connected to the positive and negative electrode plates of the PTZ sheet 12 to be subjected to band-pass filtering so as to remove interference noise signals, and the signal is transmitted to the signal transmission interface 211 through the wire 5 after the filtering of the filter circuit 15 is completed, so that the data acquisition circuit board 22 receives the filtered electrical signals. Wherein the insulating pad 14 is used for placing electronic components except wires connected to the electrodes of the PTZ sheet 12 to generate interference on signals. The filter circuit 15 may be a conventional circuit with a filter function, such as a capacitor filter, etc., and the specific circuit structure is not limited by the present invention.
In a preferred embodiment, the data acquisition circuit board 22 is integrated with an FPGA chip, and the FPGA chip is connected to the signal transmission interfaces 211 through a plurality of signal transmission lines 25. Specifically, after the signal transmission interface 211 receives the electrical signals sent by the one or more filter circuits 15, the FPGA chip performs analog-to-digital conversion and waveform segment selection on the multiple signals, and finally obtains the head wave arrival time difference and the head wave amplitude difference of the multiple signals of the group, and sends the head wave arrival time difference and the head wave amplitude difference to the data processing circuit board 23.
In a preferred embodiment, the data processing circuit board 23 is integrated with a raspberry pi chip, the raspberry pi chip is electrically connected to the FPGA chip, and the raspberry pi chip is further electrically connected to the Wi-Fi module 24. The raspberry pi chip can obtain a positioning signal according to the signal sent by the FPGA chip after analog-to-digital conversion, so that the position of an impact point of a stress wave and an excitation device is acquired. And then sent to the data receiving device 3 through the Wi-Fi module 24.
In the preferred embodiment, the Wi-Fi module 24 is a Wi-Fi chip, and the Wi-Fi chip can implement wireless transmission of signals, thereby solving the problem of inconvenience caused by long-distance signal transmission by using cables in the prior art.
In a preferred embodiment, please continue to refer to fig. 1 and fig. 2, a power transformer 26 is further disposed in the first box 21, a first power interface 212 is further disposed on the first box 21, the power transformer 26 is connected to a power supply through the first power interface 212, and the power transformer 26 is configured to supply power to the data acquisition circuit board 22, the data processing circuit board 23, and the Wi-Fi module 24 after performing voltage stabilization processing on an accessed power supply, so as to meet the power supply requirement of the data acquisition processing apparatus 2.
In a preferred embodiment, referring to fig. 4, the data receiving device 3 includes a second box 31, a signal receiving circuit board 32 and a signal antenna 33, the signal receiving circuit board 32 and the signal antenna 33 are both disposed inside the second box 31, the signal receiving circuit board 32 is electrically connected to the signal antenna 33, and the signal receiving circuit board 32 receives a positioning signal sent by the Wi-Fi module 24 through the signal antenna 33.
Specifically, a memory chip is integrated on the signal receiving circuit board 32, and when the Wi-Fi module 24 sends a positioning signal, the positioning signal is received through the signal antenna 33 and then stored in the memory chip on the signal receiving circuit board 32.
In a preferred embodiment, the second box 31 is further provided with a USB interface 311, and the signal receiving circuit board 32 can be connected to an upper computer through the USB interface 311, so that data stored in the signal receiving circuit board 32 can be transmitted to the upper computer for viewing.
In a preferred embodiment, the second box 31 is further provided with a second power interface 312, and the second power interface 312 is used for accessing a power supply to supply power to the signal receiving circuit board 32.
To sum up, the embodiment of the utility model provides an acoustics positioner is through the collection with the signal and the processing function integration is in data acquisition processing apparatus is last for acoustics collection system's structure is more miniaturized, and data processing apparatus modularization makes monitoring and collection system easy to assemble more and the maintenance in later stage. In addition, the Wi-Fi module is integrated on the data acquisition and processing device, so that the data acquisition and processing device and the data receiving device are designed in a split mode, the installation and the maintenance are further facilitated, and the adoption of cables for remote signal transmission is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (9)
1. An acoustic positioning device is characterized by comprising a plurality of strain gauge sensors, a data acquisition and processing device and a data receiving device, wherein,
the strain gauge sensors are arranged on the structural body to be detected and used for converting stress waves generated by the structural body to be detected into electric signals and outputting the electric signals after processing;
the data acquisition processing device comprises a first box body, a data acquisition circuit board, a data processing circuit board and a Wi-Fi module, wherein the data acquisition circuit board, the data processing circuit board and the Wi-Fi module are all arranged in the first box body, the first box body is provided with a plurality of signal transmission interfaces, the data acquisition circuit board is connected with the signal transmission interfaces through a plurality of signal transmission lines, each strain gauge sensor is connected with one signal transmission interface through a lead, the data acquisition circuit board, the data processing circuit board and the Wi-Fi module are sequentially and electrically connected, the data acquisition circuit board is used for performing analog-to-digital conversion on processed electric signals, and the data processing circuit board is used for outputting positioning signals according to the signals subjected to the analog-to-digital conversion;
the data receiving device is in wireless connection with the Wi-Fi module and is used for receiving the positioning signals sent by the Wi-Fi module.
2. The acoustic positioning apparatus of claim 1, wherein the strain gauge sensor comprises a housing, a PTZ sheet, a magnet sheet, an insulating spacer, and a filter circuit, the PTZ sheet, the magnet sheet, the insulating spacer, and the filter circuit are sequentially disposed in the housing from bottom to top, the PTZ sheet and the filter circuit are electrically connected, and the filter circuit is connected to a signal transmission interface through a wire.
3. The acoustic positioning apparatus of claim 1, wherein an FPGA chip is integrated on the data acquisition circuit board, and the FPGA chip is connected to the plurality of signal transmission interfaces through the plurality of signal transmission lines.
4. The acoustic positioning device of claim 3, wherein a raspberry pi chip is integrated on the data processing circuit board, the raspberry pi chip being electrically connected to the FPGA chip, the raspberry pi chip being further electrically connected to the Wi-Fi module.
5. The acoustic positioning apparatus of claim 1, wherein the Wi-Fi module is a Wi-Fi chip.
6. The acoustic positioning device according to claim 1, wherein a power transformer is further disposed in the first box, the first box is further provided with a first power interface, the power transformer is connected to a power supply through the first power interface, and the power transformer is configured to supply power to the data acquisition circuit board, the data processing circuit board, and the Wi-Fi module after performing voltage stabilization processing on an accessed power supply.
7. The acoustic positioning device of claim 1, wherein the data receiving device comprises a second box, a signal receiving circuit board and a signal antenna, the signal receiving circuit board and the signal antenna are both disposed inside the second box, the signal receiving circuit board is electrically connected to the signal antenna, and the signal receiving circuit board receives the positioning signal sent by the Wi-Fi module through the signal antenna.
8. The acoustic positioning apparatus of claim 7, wherein the second housing further comprises a USB port.
9. The acoustic positioning apparatus of claim 7, wherein the second housing further defines a second power port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120345313.6U CN214703435U (en) | 2021-02-05 | 2021-02-05 | Acoustic positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120345313.6U CN214703435U (en) | 2021-02-05 | 2021-02-05 | Acoustic positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214703435U true CN214703435U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120345313.6U Expired - Fee Related CN214703435U (en) | 2021-02-05 | 2021-02-05 | Acoustic positioning device |
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| Country | Link |
|---|---|
| CN (1) | CN214703435U (en) |
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2021
- 2021-02-05 CN CN202120345313.6U patent/CN214703435U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |