Telescopic rod type 64-channel acoustic probe
By designing a telescopic rod-type 64-channel acoustic probe, the problem of difficulty in detecting existing acoustic imager probes in high places or in small spaces is solved, the telescopic and angle adjustment of the probe are achieved, and the detection range is expanded.
Patent Information
- Application Number
- CN202421961852.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-14
AI Technical Summary
The probes of existing acoustic imagers cannot be effectively detected in high places or in small spaces.
A telescopic rod-type 64-channel acoustic probe is designed, equipped with a telescopic rod and an adjustment mechanism, combining a microphone array disk, a white light camera module, a range measurement module and a thermal infrared camera module to achieve telescopic and angle adjustment of the probe.
The detection range of the probe is expanded, and it can enter high places or narrow spaces for testing, improving the detection ability in special circumstances.
Smart Images
Figure CN223217445U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of acoustic probe equipment, in particular to a telescopic rod type 64-channel acoustic probe. Background Art
[0002] An acoustic imager is an advanced detection device that visualizes sound. It operates by using an array of highly sensitive microphones to collect and analyze sound signals from a target area. Processing components then process this sound data, converting information such as the source's location and intensity into intuitive images that are displayed on a screen. Acoustic imagers play an important role in many fields.
[0003] The probes of acoustic imagers in the prior art are generally handheld, and the test range is limited to the area that can be reached by hand. However, in some special working conditions, such as some high places or narrow spaces that cannot be observed, detection is impossible. Therefore, this application proposes a probe with a telescopic rod to solve the above problem. Utility Model Content
[0004] The utility model aims to solve the problem in the prior art that a direct handheld probe cannot well complete the test under some special circumstances, and proposes a telescopic rod type 64-channel acoustic probe.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A telescopic rod-type 64-channel acoustic probe includes a probe shell, a telescopic rod is provided on the back of the shell, an adjustment mechanism for adjusting the angle is provided between the telescopic rod and the shell, and a microphone array plate, a white light camera module, a ranging module and a thermal infrared camera module are provided on the shell.
[0007] Preferably, a connection box is fixedly provided on the back of the shell, a support is fixedly provided on the connection box, a clamp is hinged on the support, and the clamp is fixedly connected to the top end of the telescopic rod.
[0008] Preferably, the support and the clamp are hinged via a damping shaft.
[0009] Preferably, the adjustment mechanism includes a pull rope structure and a reset structure, the pull rope structure includes a wire tube and a pull wire, one end of the wire tube is fixedly set on the top of the telescopic rod, and the other end is fixedly set on the handle at the bottom end of the telescopic rod, the pull wire is slidably set in the wire tube, and both ends of the pull wire extend out of the wire tube, and the top end of the pull wire is fixedly set at the lower part of the connection box.
[0010] Preferably, the pull rope structure further includes a slide groove provided on the handle and a slider slidably provided on the slide groove, and the slider is fixedly connected to the bottom end of the pull rope.
[0011] Preferably, the reset structure includes a tension spring, a fixing plate is fixedly provided on the top end of the telescopic rod, one end of the tension spring is fixedly connected to the fixing plate, and the other end is fixedly connected to the upper part of the connection box.
[0012] Preferably, a protective shell is detachably connected to the front of the shell, and clamping blocks are provided on the upper and lower inner parts of the protective shell. A matching clamping slot is provided on the shell, and the protective shell is clamped into the clamping slot with the shell through the clamping block.
[0013] Compared with the prior art, the present invention provides a telescopic rod-type 64-channel acoustic probe, which has the following beneficial effects.
[0014] 1. The utility model provides a telescopic rod, which can be used to extend the probe into some high places or small spaces for testing, thereby solving the limitations of existing probes. At the same time, the adjustment mechanism is provided to solve the problem in the prior art that the direct hand-held probe cannot complete the test well in some special circumstances.
[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on an examination of the following; or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0017] Figure 2 For this utility model Figure 1 Enlarged structural diagram at point A in the middle.
[0018] Figure 3 For this utility model Figure 1 Enlarged structural diagram at point B in the middle.
[0019] Figure 4 It is a structural schematic diagram of the housing and protective shell in the utility model.
[0020] Figure 5 It is a structural schematic diagram of the shell in the utility model.
[0021] Figure 6 It is a schematic diagram of the partial split structure of the utility model.
[0022] In the picture:
[0023] 1. Handle; 2. Slide; 3. Wire tube; 4. Telescopic rod; 5. Connection box; 6. Housing; 7. Protective shell; 8. Tension spring; 9. Support; 10. Pull wire; 11. Clamp; 12. Slider; 13. Block; 14. Thermal infrared camera module; 15. Distance measurement module; 16. White light camera module; 17. Microphone array plate. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0025] Reference Figure 1-6 The telescopic rod type 64-channel acoustic probe includes a probe shell 6, a telescopic rod 4 is provided on the back of the shell 6, an adjustment mechanism for adjusting the angle is provided between the telescopic rod 4 and the shell 6, and a microphone array disk 17, a white light camera module 16, a ranging module 15 and a thermal infrared camera module 14 are provided on the shell 6.
[0026] In a specific embodiment of the present invention, the length of the telescopic rod 4 can be changed by extending and retracting the telescopic rod 4. The telescopic rod 4 can be used to move the probe to some high places or extend the probe into a small space for testing. In this way, the limitations of the probe can be reduced, so that the probe can adapt to a variety of detection scenarios; the adjustment mechanism can be used to adjust the angle between the probe and the telescopic rod 4. In this way, when the telescopic rod 4 is used to extend the probe to the measured area, the angle of the probe can be changed to make the probe point towards the measured part, making the adaptability of the device stronger.
[0027] The microphone array disk 17, the white light camera module 16, the ranging module 15 and the thermal infrared camera module 14 transmit the collected signals to the main board; the main board is set in the host, and the host and the probe are set separately, and the two are connected by a data cable. The main board mainly performs calculations such as editing and outputting the waveforms of the acoustic, optical and thermal signals, controlling signal acquisition, array measurement technology, and algorithm superposition of acoustic, optical and thermal images, so as to present and save the detection results.
[0028] The microphone array disk 17 uses a spiral array of 64 MEMS digital microphones; the white light camera module 16 is located in the middle of the square of the shell 6, and the thermal infrared camera module 14 is located in the upper left corner of the square of the shell 6; it can be used for leak detection in compressed air, gas and vacuum systems, electrical partial discharge detection in electrical cabinets, substations, etc., and temperature anomaly detection.
[0029] The microphone array disk 17 adopts a spiral array design and is equipped with 64 high-speed MEMS digital microphones to synchronously receive and analyze sound signals in space. Due to the unequal distances between the sound source and each microphone in the array, the sound waves received by each microphone have different delays. Through the FFT algorithm, the received data is deeply analyzed to obtain the amplitude value and position information of the array signal at each wavelength of interest. The obtained data is then converted into the time / frequency domain to generate intuitive and loud time domain images and frequency domain images. Finally, based on the information of each position and angle, the spatial sound field distribution state is accurately presented. Finally, all the collected data is transmitted to the host through the connecting cable and processed by the host to be presented in the form of images.
[0030] The working principle of acoustic imaging: The signals collected by each array element are weighted and summed to form a beam. This beam is guided by searching for the possible location of the sound source, and the weights are modified to maximize the output signal power of the microphone array. At each wavelength of interest, the array signal processing provides the energy level at each given spatial scanning grid point or each signal arrival. The spatial position of the sound source is determined based on the spatial phase difference generated by the array signal, forming an acoustic cloud map. All the above calculations and summations are performed on the system motherboard, using the GPU to achieve rapid spatial scanning of acoustic imaging, and the CPU to complete tasks such as FFT calculations and program serial control. This fully utilizes the hardware computing power and fundamentally improves the spatial resolution accuracy of acoustic imaging. At the same time, the real-time images or videos captured by the white light cameras on the array disk are transparently superimposed on each other, creating an intuitive and visual display on the display screen.
[0031] The thermal imaging mode can be switched to an audio-visual display mode at any time via the main unit's display. The device simultaneously displays the center temperature, maximum and minimum temperatures of the object being measured. Thermal imaging technology is based on infrared radiation from the surface of an object. Every object emits infrared radiation, and its intensity is related to the surface temperature. This infrared radiation captured by the sensor is converted into an electrical signal, which is then converted into a USB signal. This signal is processed by the system motherboard to produce an image, which is then displayed on the display.
[0032] The distance measuring module 15 is used to detect the distance between the detected surface and the probe, so as to confirm the specific position of the detected area.
[0033] The telescopic rod 4 can adopt an existing conventional telescopic rod 4, such as a selfie stick.
[0034] A connection box 5 is fixedly provided on the back of the housing 6, a support 9 is fixedly provided on the connection box 5, a clamp 11 is hinged on the support 9, and the clamp 11 is fixedly connected to the top of the telescopic rod 4;
[0035] The clamp 11 is sleeved on the telescopic rod 4 , and then the matching screws are tightened so that the clamp 11 is tightly clamped on the telescopic rod 4 , so that the telescopic rod 4 and the housing 6 are connected together.
[0036] The support 9 and the clamp 11 are hinged by a damping shaft; by using the damping shaft to connect the support 9 and the clamp 11, the clamp 11 can have a certain resistance when rotating on the support 9, thereby reducing the shaking of the shell 6 on the telescopic rod 4 to a certain extent.
[0037] The adjustment mechanism includes a pull rope structure and a reset structure. The pull rope structure includes a wire tube 3 and a pull wire 10. One end of the wire tube 3 is fixedly set on the top of the telescopic rod 4, and the other end is fixedly set on the handle 1 at the bottom end of the telescopic rod 4. The pull wire 10 is slidably set in the wire tube 3, and both ends of it extend out of the wire tube 3. The top end of the pull wire 10 is fixedly set at the bottom of the connection box 5;
[0038] By pulling the pull wire 10, the connecting box 5 can be driven to rotate around the damping axis, thereby changing the angle between the shell 6 and the telescopic rod 4. The reset structure applies a force opposite to the pull wire 10, and the two cooperate to achieve a certain balance, so that the shell 6 can maintain a certain angle unchanged. At the same time, after loosening the pull wire 10, the shell 6 will rotate around the damping axis driven by the reset structure, so that its angle becomes the original angle.
[0039] The pull rope structure also includes a slide groove 2 arranged on the handle 1 and a slider 12 slidably arranged on the slide groove 2, and the slider 12 is fixedly connected to the bottom end of the pull wire 10; the cross-section of the slide groove 2 is convex, and the bottom of the slider 12 also presents a convex shape matching the slide groove 2. The convex bottom of the slider 12 slides in the slide groove 2, and the bottom end of the pull wire 10 can be driven to move by moving the slider 12. Under normal circumstances, under the action of the reset structure, the slider 12 is located near the slide groove 2 and close to the shell 6. At this time, the angle between the shell 6 and the telescopic rod 4 is the initial angle. When the slider 12 is moved, the bottom end of the pull wire 10 will be pulled, so that the top end of the pull wire 10 pulls the connecting box 5, so that the connecting box 5 overcomes the force of the reset structure and rotates around the damping shaft, thereby changing the angle of the shell 6. Although the force of the reset structure is overcome, the reset structure still applies force. When the tension of the pull wire 10 and the force of the reset structure are balanced, the shell 6 will maintain a certain angle unchanged.
[0040] The reset structure includes a tension spring 8. A fixing plate is fixedly provided at the top of the telescopic rod 4. One end of the tension spring 8 is fixedly connected to the fixing plate, and the other end is fixedly connected to the upper part of the connection box 5. The tension of the tension spring 8 can pull the upper part of the connection box 5 under the tension of the tension spring 8, so that the connection box 5 can rotate around the damping shaft to a certain extent.
[0041] Under normal circumstances, when no force is applied to the pull wire 10, the connection box 5 is driven to rotate around the damping shaft under the tension of the tension spring 8. At this time, the slider 12 at the bottom end of the pull wire 10 reaches the end of the slide 2 (the end is the end of the slide 2 close to the shell 6) and is blocked. At this time, the shell 6 will maintain an unchanged angle, which is the initial angle. When the slider 12 is moved on the slide 2 by hand, the pull wire 10 will be driven to move, so that the top end of the pull wire 10 applies tension to the connection box 5, so that it overcomes the tension of the tension spring 8, so that the connection box 5 rotates around the damping shaft, so that the angle of the shell 6 changes. During this process, the tension spring 8 also continues to apply tension to the connection box 5. When the slider 12 is stationary at a certain position, the angle between the shell 6 and the telescopic rod 4 will also be limited.
[0042] The front of the shell 6 is detachably connected to a protective shell 7, and the upper and lower inner parts of the protective shell 7 are provided with card blocks 13. The shell 6 is provided with a matching card slot, and the protective shell 7 is snapped into the card slot and connected to the shell 6 through the card block 13; the protective shell 7 can be used to protect the front of the shell 6. When not in use, it can prevent dust from entering the microphone array disk 17 and prevent the lenses of the white light camera module 16, the ranging module 15 and the thermal infrared camera module 14 from being damaged.
[0043] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0045] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. Telescopic 64-channel acoustic probe, characterized by: The invention comprises a housing (6) of a probe, a telescopic rod (4) is provided on the back of the housing (6), an adjustment mechanism for adjusting the angle is provided between the telescopic rod (4) and the housing (6), and a microphone array plate (17), a white light camera module (16), a distance measurement module (15) and a thermal infrared camera module (14) are provided on the housing (6).
2. The telescopic rod type 64-channel acoustic probe according to claim 1, characterized in that: A connection box (5) is fixedly provided on the back of the housing (6), a support (9) is fixedly provided on the connection box (5), a clamp (11) is hinged on the support (9), and the clamp (11) is fixedly connected to the top end of the telescopic rod (4).
3. The telescopic rod type 64-channel acoustic probe according to claim 2, characterized in that: The support (9) and the clamp (11) are hinged via a damping shaft.
4. The telescopic rod type 64-channel acoustic probe according to claim 2, characterized in that: The adjustment mechanism includes a pull rope structure and a reset structure, wherein the pull rope structure includes a wire tube (3) and a pull wire (10), one end of the wire tube (3) is fixedly arranged on the top of the telescopic rod (4), and the other end is fixedly arranged on the handle (1) at the bottom end of the telescopic rod (4), the pull wire (10) is slidably arranged in the wire tube (3), and both ends of the pull wire (10) extend out of the wire tube (3), and the top end of the pull wire (10) is fixedly arranged at the bottom of the connection box (5).
5. The telescopic rod type 64-channel acoustic probe according to claim 4, characterized in that: The pull rope structure further comprises a slide groove (2) arranged on the handle (1) and a slider (12) slidably arranged on the slide groove (2), and the slider (12) is fixedly connected to the bottom end of the pull rope (10).
6. The telescopic rod type 64-channel acoustic probe according to claim 4, characterized in that: The reset structure comprises a tension spring (8), a fixing plate is fixedly provided on the top end of the telescopic rod (4), one end of the tension spring (8) is fixedly connected to the fixing plate, and the other end is fixedly connected to the upper part of the connection box (5).
7. The telescopic rod type 64-channel acoustic probe according to claim 1, characterized in that: The front of the shell (6) is detachably connected to a protective shell (7), and the upper and lower inner portions of the protective shell (7) are both provided with clamping blocks (13). The shell (6) is provided with a matching clamping slot, and the protective shell (7) is clamped into the clamping slot by the clamping block (13) to be connected to the shell (6).