Portable acoustic array imager
By combining an explosion-proof tablet computer and an acoustic array, a portable acoustic array imager was developed, achieving high safety and flexible monitoring. This solves the limitations of existing acoustic array equipment in flammable and explosive environments and provides an efficient and portable monitoring solution.
Patent Information
- Application Number
- CN202421113253.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Existing acoustic array equipment lacks explosion-proof capabilities, has weak waterproof capabilities, is bulky, has complex wiring, is inconvenient to use, and has poor application flexibility in flammable and explosive environments.
It adopts a portable acoustic array imager, combined with an explosion-proof tablet computer and an acoustic array. The tablet computer's built-in camera collects image information and performs sound imaging processing on it, simplifying wiring. It adopts an intrinsically safe explosion-proof design and an integrated equipment structure.
It achieves high-safety monitoring in flammable and explosive environments. The equipment is miniaturized, portable, flexible in application, and provides comprehensive monitoring without blind spots, reducing system design complexity and maintenance costs.
Smart Images
Figure CN222336391U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of monitoring equipment for industries such as natural gas and petrochemical industry or flammable and explosive places, and in particular to a portable acoustic array imager. Background Art
[0002] The acoustic array is mainly composed of acoustic sensors, signal acquisition boards and cameras. The acoustic sensors are arranged in a specific shape to collect on-site sounds in real time, perform signal processing on the collected sounds, use specific algorithms to locate the sounds and calculate the power spectrum, and generate acoustic images. At the same time, the camera is used to capture on-site images, and the on-site images and acoustic images are superimposed to intuitively display the specific location of the sound in the image. Acoustic arrays are generally used for acoustic imaging positioning, and are often used for gas leak detection, partial discharge detection, noise source detection, etc. Acoustic arrays can provide a more comprehensive monitoring solution with great practical value.
[0003] However, most of the acoustic arrays in the existing technology do not have explosion-proof capabilities and weak waterproof capabilities, and cannot be used in industries such as natural gas and petrochemicals, and their applications have certain limitations. The remaining acoustic arrays with explosion-proof capabilities also use explosion-proof designs and need to be used with explosion-proof boxes and explosion-proof shells; they are bulky and have complex on-site wiring, which is not conducive to installation and deployment; and the acoustic array needs to be used in conjunction with a computer in the control room, which requires long wiring distances, is inconvenient to use, has blind spots for monitoring, and lacks flexibility in application. Utility Model Content
[0004] The utility model provides a portable acoustic array imager, aiming to solve the problems in the prior art.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] A portable acoustic array imager comprises a tablet computer with explosion-proof function and an acoustic array, wherein the acoustic array is installed on the rear side of the tablet computer and is communicatively connected with the tablet computer.
[0007] The beneficial effect of the utility model is that during use, the sound array is used to collect sound information on the scene, and the camera provided by the tablet computer is used to collect image information, and software is run in the tablet computer to perform sound imaging processing, thereby realizing real-time monitoring of the scene, convenient monitoring, and high safety factor.
[0008] The utility model has a simple structure and a reasonable design, can be applied to the monitoring of inflammable and explosive places, is easy to be miniaturized, does not require complicated wiring, is easy to carry, and has a more flexible application range.
[0009] On the basis of the above technical solution, the present invention can also be improved as follows.
[0010] Furthermore, the acoustic array includes a shell, a sound sensor circuit board and a signal acquisition circuit board, the shell is fixedly mounted on the rear side of the tablet computer; the sound sensor circuit board and the signal acquisition circuit board are respectively fixedly mounted in the shell, and the sound sensor circuit board, the signal acquisition circuit board and the tablet computer are connected in sequence through lines.
[0011] The beneficial effect of adopting the above further solution is that during use, the sound sensor circuit board is used to collect sound information on site, and the signal acquisition circuit board is used to send the corresponding sound signal to the tablet computer for analysis.
[0012] Furthermore, the sound sensor circuit board includes a plurality of sound sensors, which are evenly spaced and respectively used to collect on-site sound signals.
[0013] The beneficial effects of adopting the above further scheme are simple results, reasonable design, and convenient collection of on-site sound information using multiple sound sensors during monitoring.
[0014] Furthermore, the shell is a rectangular shell, and its four corners are respectively in smooth arc-shaped structures.
[0015] The beneficial effect of adopting the above further solution is that the shape of the shell is reasonably designed, neat and beautiful.
[0016] Furthermore, the shell includes a lower bottom shell and a sound-transparent upper top shell, the lower bottom shell is fixedly mounted on the tablet computer; one side of the sound-transparent upper top shell is open and the other side is closed, and its open side is fixedly connected to the lower bottom shell; the sound sensor circuit board and the signal acquisition circuit board are respectively fixedly mounted in the area enclosed by the lower bottom shell and the sound-transparent upper top shell.
[0017] The beneficial effect of adopting the above further solution is that the outer shell is composed of a lower bottom shell and a sound-permeable upper top shell, and adopts a split design, which makes assembly more convenient and saves time and effort.
[0018] Furthermore, a waterproof and breathable membrane is fixedly installed between the sound sensor circuit board and the open side of the sound-permeable upper shell.
[0019] The beneficial effects of adopting the above further solution are simple structure, reasonable design, waterproofing by using a waterproof and breathable membrane, and extending the service life of the equipment.
[0020] Furthermore, a sealing rubber ring is fixedly installed between the lower bottom shell and the open side of the sound-transparent upper top shell.
[0021] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and utilizing the sealing rubber ring to increase the sealing performance of the housing.
[0022] Furthermore, a waterproof connector is fixedly mounted on the sound-transmitting upper shell, and the waterproof connector is connected to the signal acquisition circuit board and the tablet computer through lines respectively.
[0023] The beneficial effects of adopting the above further solution are simple structure, reasonable design, the signal acquisition circuit board and the tablet computer can be connected by using a waterproof connector, and the solution has a waterproof function and a longer service life.
[0024] Furthermore, a plurality of air holes are evenly spaced on the closed side of the sound-transmitting upper top shell.
[0025] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and a plurality of air holes for easy sound transmission, which is convenient for collecting sound during the monitoring process.
[0026] Furthermore, a handle is fixedly mounted on the tablet computer.
[0027] The beneficial effects of adopting the above further solution are simple structure, reasonable handle design, and convenience in carrying the entire device. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0029] Figure 2 It is the front view of the utility model;
[0030] Figure 3 It is a rear view of the utility model;
[0031] Figure 4 It is a side view of the utility model;
[0032] Figure 5 It is a bottom view of the utility model;
[0033] Figure 6 It is a top view of the utility model;
[0034] Figure 7 This is a schematic diagram of the internal structure of the acoustic array in the utility model;
[0035] Figure 8 It is a schematic diagram of the distribution of multiple acoustic sensors in the utility model.
[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0037] 1. Tablet computer; 2. Sound array; 3. Sound sensor circuit board; 4. Signal acquisition circuit board; 5. Sound sensor; 6. Lower bottom shell; 7. Sound-permeable upper top shell; 8. Waterproof and breathable membrane; 9. Sealing rubber ring; 10. Waterproof connector; 11. Air hole; 12. Handle. DETAILED DESCRIPTION
[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0039] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0041] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0042] Example 1
[0043] like Figures 1 to 8 As shown, this embodiment provides a portable acoustic array imager, including a tablet computer 1 with explosion-proof function and an acoustic array 2, wherein the acoustic array 2 is installed on the rear side of the tablet computer 1 and is communicatively connected with the tablet computer 1.
[0044] During use, the sound array 2 is used to collect sound information on the scene, and the camera of the tablet computer 1 is used to collect image information. The software is run in the tablet computer 1 to perform sound imaging processing, so as to realize real-time monitoring of the scene, which is convenient for monitoring and has a high safety factor.
[0045] It should be noted that the tablet computer 1 adopts the existing technology, and its specific structure and principle are not described in detail here.
[0046] This embodiment has a simple structure and a reasonable design, can be applied to the monitoring of flammable and explosive places, is easy to miniaturize, does not require complicated wiring, is easy to carry, and has a more flexible application range.
[0047] Example 2
[0048] On the basis of Example 1, in this embodiment, the sound array 2 includes a shell, a sound sensor circuit board 3 and a signal acquisition circuit board 4, and the shell is fixedly installed on the rear side of the tablet computer 1; the sound sensor circuit board 3 and the signal acquisition circuit board 4 are respectively fixedly installed in the shell, and the sound sensor circuit board 3, the signal acquisition circuit board 4 and the tablet computer 1 are connected in sequence through lines.
[0049] During use, the sound sensor circuit board 3 is used to collect sound information on site, and the signal acquisition circuit board 4 is used to send the corresponding sound signal to the tablet computer 1 for analysis.
[0050] It should be noted that the above-mentioned signal acquisition circuit board 4 adopts the existing technology, and its specific structure and principle are not described in detail here.
[0051] Example 3
[0052] On the basis of Example 2, in this embodiment, the sound sensor circuit board 3 includes a plurality of sound sensors 5, and the plurality of sound sensors 5 are evenly spaced and distributed, respectively, for collecting on-site sound signals.
[0053] The solution is simple in result and reasonable in design. During monitoring, multiple acoustic sensors 5 are used to collect sound information on site, which is convenient to collect.
[0054] Preferably, in this embodiment, the sound sensor circuit board 3 further includes a circuit board body, and a plurality of sound sensors 5 are evenly spaced apart on the circuit board body, which are respectively connected to the circuit board body through lines, and the circuit board body is connected to the signal acquisition circuit board 4 through lines.
[0055] It should be noted that the circuit board body and the plurality of acoustic sensors 5 respectively adopt the existing technology, and their specific structures and principles are not described in detail here.
[0056] Example 4
[0057] On the basis of any one of Embodiments 2 to 3, in this embodiment, the outer shell is a rectangular shell, and its four corners are respectively smooth arc-shaped structures.
[0058] The shape of the shell is reasonably designed, neat and beautiful.
[0059] Alternatively, the housing may also be in other suitable geometric shapes, such as a circle.
[0060] Example 5
[0061] On the basis of any one of Examples 2 to 4, in this embodiment, the housing includes a lower bottom shell 6 and a sound-transparent upper top shell 7, and the lower bottom shell 6 is fixedly mounted on the tablet computer 1; one side of the sound-transparent upper top shell 7 is open and the other side is closed, and its open side is fixedly connected to the lower bottom shell 6; the sound sensor circuit board 3 and the signal acquisition circuit board 4 are respectively fixedly mounted in the area enclosed by the lower bottom shell 6 and the sound-transparent upper top shell 7.
[0062] The outer shell is composed of a lower bottom shell 6 and a sound-permeable upper top shell 7, and adopts a split design, which is more convenient to assemble and saves time and effort.
[0063] Based on the above solution, the size of the lower bottom shell 6 can be equal to or larger than the size of the sound-transparent upper top shell 7 .
[0064] Example 6
[0065] On the basis of Example 5, in this embodiment, a waterproof breathable membrane 8 is fixedly installed between the sound sensor circuit board 3 and the open side of the sound-transmitting upper top shell 7 .
[0066] This solution has a simple structure and a reasonable design. The waterproof and breathable membrane 8 can be used to provide waterproofing, thereby extending the service life of the equipment.
[0067] Based on the above solution, the shape of the waterproof breathable membrane 8 is consistent with the shape of the sound-permeable upper top shell 7 .
[0068] Example 7
[0069] On the basis of any one of Embodiments 5 to 6, in this embodiment, a sealing rubber ring 9 is fixedly installed between the lower bottom shell 6 and the open side of the sound-transparent upper top shell 7 .
[0070] This solution has a simple structure and a reasonable design, and utilizes the sealing rubber ring 9 to increase the sealing performance of the housing.
[0071] Preferably, in this embodiment, the sealing rubber ring 9 is preferably rectangular, and its shape is consistent with the shape of the open side of the sound-transparent upper top shell 7.
[0072] Example 8
[0073] On the basis of any one of Examples 5 to 7, in this embodiment, a waterproof connector 10 is fixedly mounted on the sound-transparent upper shell 7, and the waterproof connector 10 is connected to the signal acquisition circuit board 4 and the tablet computer 1 through lines, respectively.
[0074] The solution has a simple structure and a reasonable design. The waterproof connector 10 can be used to connect the signal acquisition circuit board 4 and the tablet computer 1. The solution has a waterproof function and a longer service life.
[0075] Example 9
[0076] On the basis of any one of Embodiments 5 to 8, in this embodiment, a plurality of air holes 11 are evenly spaced apart on the closed side of the sound-transmitting upper top shell 7 .
[0077] The solution has a simple structure and a reasonable design. The plurality of air holes 11 facilitate sound transmission and facilitate sound collection during the monitoring process.
[0078] Preferably, in this embodiment, the plurality of air holes 11 can be divided into a plurality of groups, and the plurality of air holes 11 are evenly spaced and distributed in sequence from the inside to the outside, and the plurality of air holes 11 in each group are evenly spaced and distributed in a circle.
[0079] Alternatively, the plurality of pores 11 are distributed in a windmill shape.
[0080] Example 10
[0081] On the basis of the above embodiments, in this embodiment, a handle 12 is fixedly mounted on the tablet computer 1 .
[0082] The solution has a simple structure, and the handle 12 is reasonably designed, making it easy to carry the entire device.
[0083] Preferably, in this embodiment, the handle 12 is preferably a U-shaped structure, and two sides of the open end thereof are respectively fixedly connected to the edges of the tablet computer 1 .
[0084] The working principle of the utility model is as follows:
[0085] During use, the sound array 2 is used to collect sound information on the scene, and the camera of the tablet computer 1 is used to collect image information. The software is run in the tablet computer 1 to perform sound imaging processing, so as to realize real-time monitoring of the scene, which is convenient for monitoring and has a high safety factor.
[0086] The beneficial effects of the utility model are as follows:
[0087] 1. Intrinsically safe explosion-proof design: can be used in flammable and explosive places; simple structure, easy to miniaturize, no need for complicated wiring.
[0088] 2. Portable structure design: simple structure, easy to carry, more flexible application range; no installation and deployment required, no blind spots in detection.
[0089] 3. Acoustic array integration method: Industrial field software can be flexibly installed, integrating detection, reporting, photography, analysis and troubleshooting.
[0090] The utility model provides a new type of acoustic array: an integrated acoustic array device composed of an intrinsically safe explosion-proof tablet computer and an intrinsically safe explosion-proof acoustic array, which uses the acoustic array to collect sound information, uses the camera on the tablet computer to collect image information, and runs software in the tablet computer to perform sound imaging processing. The overall design adopts an intrinsically safe explosion-proof design, which can be used in flammable and explosive places, such as petrochemicals, gas stations and other dangerous places, without the need to use bulky explosion-proof boxes or explosion-proof housings and supporting safety barriers and other protective devices. It is small in size, flexible in application, simple in structure, easy to carry, and has stable performance.
[0091] In addition, the utility model adopts a tablet computer combined with an acoustic array mode, which greatly reduces the complexity of system design:
[0092] (1) Use a mature tablet computer as an algorithm processing platform;
[0093] (2) Acoustic array module, providing gas leak signal detection capability;
[0094] (3) Tablet computer, with built-in power system, can work without external power supply and communication;
[0095] (4) Data analysis and data detection are separated to reduce design complexity, reduce maintenance costs, and improve production efficiency;
[0096] (5) The user learning cost is low and easy to use.
[0097] Moreover, the intrinsically safe explosion-proof tablet computer and the intrinsically safe explosion-proof sound array of the utility model are connected by USB cables, and do not require other complicated wiring. The specific advantages are:
[0098] (1) A USB cable that provides power to the array and transmits data back to the explosion-proof tablet computer;
[0099] (2) The acoustic array does not require an additional power system and has a simple structure;
[0100] (3) Single USB cable design avoids too many cable interfaces and makes waterproof design easier.
[0101] The intrinsically safe explosion-proof acoustic array provided by the utility model is composed of a sound-permeable upper shell, a waterproof breathable membrane, an acoustic sensor circuit board, a connecting cable, a signal acquisition circuit board, a sealing rubber ring, a power supply / communication cable, etc. The waterproof breathable membrane and the sealing rubber ring cooperate with the shell to form a waterproof structure, and the protection level can reach IP65 level.
[0102] The acoustic sensor circuit board includes 64 acoustic sensors for collecting on-site sound signals.
[0103] The data acquisition circuit board adopts FPGA chip to collect sound signals, and the data acquisition circuit board and the sound sensor circuit board are connected through signal cables.
[0104] The utility model adopts an intrinsically safe explosion-proof tablet computer, and utilizes its stable system ecology and high performance advantages, and its functions can be flexibly expanded.
[0105] In view of the above problems in the prior art, the utility model proposes a design scheme of using an intrinsically safe explosion-proof tablet computer and an intrinsically safe acoustic array to form an intrinsically safe explosion-proof portable acoustic array, which can realize an intrinsically safe explosion-proof design and is convenient for application in natural gas, petrochemical and other industries or flammable and explosive places. It is compact and easy to carry, and does not need to be used with a computer. It is flexible and convenient to use, and there is no blind spot for monitoring. The details are as follows:
[0106] (1) The utility model adopts an intrinsically safe explosion-proof design and can be used in dangerous places such as natural gas and petrochemical industries.
[0107] (2) The utility model adopts an intrinsically safe explosion-proof design with a simple structure, does not require a bulky explosion-proof box, is easy to carry, and is more flexible in application.
[0108] (3) The intrinsically safe explosion-proof design does not require safety protection devices such as safety barriers, which greatly reduces the size and weight of the acoustic array, facilitates miniaturization, makes it more convenient to carry, and greatly reduces deployment or transportation costs.
[0109] (4) Portable design, no wiring required, free adjustment of detection location and direction, no blind spots in detection, and more flexible application scenarios.
[0110] (5) The utility model adopts a modular design, innovatively combining an intrinsically safe explosion-proof tablet computer and an intrinsically safe explosion-proof sound array, and utilizing the performance of the tablet computer and the system ecological advantages to continuously upgrade and optimize the system to cope with different scenarios and environments.
[0111] (6) The utility model utilizes the camera built into the tablet computer, which eliminates the need to install an independent camera module, making the system structure more streamlined and easy to miniaturize.
[0112] (7) IP65 waterproof grade, suitable for outdoor use.
[0113] It should be noted that the electronic components involved in the present invention all adopt the existing technology, and the above-mentioned components are electrically connected to the controller (the controller here refers to the central controller in the tablet computer), and the control circuit between the controller and each component is the existing technology.
[0114] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0115] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
[0116] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A portable acoustic array imager, characterized in that: It comprises a tablet computer (1) with explosion-proof function and an acoustic array (2), wherein the acoustic array (2) is installed on the rear side of the tablet computer (1) and is communicatively connected with the tablet computer (1).
2. The portable acoustic array imager according to claim 1, characterized in that: The acoustic array (2) comprises a housing, a sound sensor circuit board (3) and a signal acquisition circuit board (4); the housing is fixedly mounted on the rear side of the tablet computer (1); the sound sensor circuit board (3) and the signal acquisition circuit board (4) are respectively fixedly mounted in the housing, and the sound sensor circuit board (3), the signal acquisition circuit board (4) and the tablet computer (1) are sequentially connected via lines.
3. The portable acoustic array imager according to claim 2, characterized in that: The sound sensor circuit board (3) comprises a plurality of sound sensors (5), wherein the plurality of sound sensors (5) are evenly spaced and distributed, and are respectively used to collect on-site sound signals.
4. The portable acoustic array imager according to claim 2, characterized in that: The shell is a rectangular shell, and its four corners are respectively in smooth arc-shaped structures.
5. The portable acoustic array imager according to any one of claims 2 to 4, characterized in that: The housing comprises a lower bottom shell (6) and a sound-transmitting upper top shell (7), wherein the lower bottom shell (6) is fixedly mounted on the tablet computer (1); one side of the sound-transmitting upper top shell (7) is open and the other side is closed, and the open side is fixedly connected to the lower bottom shell (6); the sound sensor circuit board (3) and the signal acquisition circuit board (4) are respectively fixedly mounted in the area enclosed by the lower bottom shell (6) and the sound-transmitting upper top shell (7).
6. The portable acoustic array imager according to claim 5, characterized in that: A waterproof and breathable membrane (8) is fixedly installed between the sound sensor circuit board (3) and the open side of the sound-permeable upper shell (7).
7. The portable acoustic array imager according to claim 5, characterized in that: A sealing rubber ring (9) is fixedly installed between the lower bottom shell (6) and the open side of the sound-transmitting upper top shell (7).
8. The portable acoustic array imager according to claim 5, characterized in that: A waterproof connector (10) is fixedly mounted on the sound-transmissive upper shell (7), and the waterproof connector (10) is connected to the signal acquisition circuit board (4) and the tablet computer (1) through lines, respectively.
9. The portable acoustic array imager according to claim 5, characterized in that: The closed side of the sound-transmitting upper shell (7) is provided with a plurality of air holes (11) evenly spaced apart.
10. The portable acoustic array imager according to any one of claims 1 to 4, characterized in that: A handle (12) is fixedly mounted on the tablet computer (1).