An array sensor-based ambient noise directional detection device

Abstract

The utility model discloses an environmental noise directional detection equipment based on array sensor concretely relates to noise detection technical field, including array detection box and array cursor display screen, the top of array detection box is connected with array cursor display screen, and the both sides of array detection box all are installed with switch handle, the edge of array detection box is provided with the plug -in hole, the top of plug -in hole is provided with locking assembly, and the plug -in hole is inserted with noise monitor. When needing to investigate noise point in close quarters, can separate monitor and extend detection through external probe, and cooperate with the direction of display screen real -time display's orientation instruction, and detection personnel can be positioned to the sound source range in.

Description

Technical Field

[0001] This utility model relates to the field of noise detection technology, and more specifically, to an environmental noise directional detection device based on an array sensor. Background Technology

[0002] With the acceleration of industrialization and urbanization, environmental noise pollution has become one of the major public hazards that seriously affect the quality of life, physical and mental health of residents and the regional ecological environment.

[0003] As shown in publication number CN111948605A, the system includes: a front panel, a chassis, a microphone array, a camera, an FPGA processing module, a display screen, detachable handles, and a positioning tripod. The front panel, microphone array, and chassis are sequentially and fixedly connected. The camera is fixedly mounted inside the front panel, the FPGA processing module is fixedly mounted inside the chassis, and the display screen and two detachable handles are fixedly mounted at the rear of the chassis. The chassis is fixedly connected to the tripod. The microphone array configuration is based on an algorithm with high positioning accuracy and strong matching performance. Combined with sound source localization technology and visual display technology, it can achieve real-time display of the sound source location in the camera's view, enabling visualized monitoring of sound source locations in different scenarios while also being portable, lightweight, and highly adaptable to various environments.

[0004] However, when using array-type noise monitoring equipment for detection, because of its array sensor function, it can detect where the noise comes from and how many sound sources there are, but it cannot confirm how loud it is or what the frequency is. Therefore, when encountering noise, it is impossible to confirm the frequency or how loud the noise is. Furthermore, because the structure of array-type noise monitoring equipment is too large, it is difficult to move the array-type noise monitoring equipment when it is necessary to get close to the noise location.

[0005] Therefore, an environmental noise directional detection device based on an array sensor is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an environmental noise directional detection device based on an array sensor to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an environmental noise directional detection device based on an array sensor, comprising an array detection box and an array cursor display screen, wherein the array cursor display screen is rotatably connected to the top of the array detection box, and switch handles are installed on both sides of the array detection box, wherein a plug-in hole is provided at the edge of the array detection box, and a locking component is provided above the plug-in hole, wherein a noise monitoring instrument is plugged into the plug-in hole.

[0008] Preferably, a microphone module is installed on the back edge of the array cursor display screen. The microphone module includes a housing and an array of probes, with the array of probes arranged at equal intervals on the outer surface of the housing.

[0009] Preferably, the array detection box is equipped with a motherboard inside, and a power supply is located below the plug-in hole.

[0010] Preferably, the locking assembly includes an unlocking head and a pusher, with the pusher placed on the side of the unlocking head and the pusher movably connected to the inner wall of the array detection box.

[0011] Preferably, a push block is threadedly connected to the lower part of the push frame, and a locking block is provided on the side of the push block, with the unlocking head and the push block in contact with each other.

[0012] Preferably, a locking block is provided on the top of the noise monitor, and the noise monitor and the locking component are connected by the locking block and the locking mechanism engaging. A functional interface is installed on the back of the noise monitor, and a fixing ring is installed on the top of the noise monitor. A single probe is installed on the top of the fixing ring.

[0013] Preferably, a spring is provided on the side of the locking block, and an external probe is provided in the array detection box located below the array cursor display screen.

[0014] Preferably, the switch handle includes a locking ring, a locking connector, and a handle, with the handle mounted on the side of the locking ring and the locking connector mounted on the top of the handle.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared with existing technologies, this environmental noise directional detection device based on array sensors is in use. The device constructs a collaborative detection system for direction positioning and intensity frequency detection through an array cursor display and a noise monitor. Through the modular setting of dual hardware, the microphone module on the array cursor display uses an array of equally spaced probes. Based on the beamforming algorithm, the time difference and phase difference of the signals received by each probe are calculated in real time. When switching to the noise monitor mode, the sound intensity data of the frequency band set by the instrument can be collected simultaneously. The real-time sound pressure level is dynamically displayed in large font in the center of the screen. With the threshold triggering mechanism, when the noise exceeds the preset value, the screen interface automatically highlights the warning and displays the noise location on the display screen. In industrial noise investigation scenarios, the direction of the noise source can be quickly locked by cursor positioning first, and then the sound intensity detection mode can be switched to identify the specific type of noise.

[0017] Compared with existing technologies, this environmental noise directional detection device based on array sensors is more advanced. The locking component adopts a spring-driven quick-release structure. When the noise monitor is inserted into the plug hole, the locking block and the locking plate automatically engage. With the linkage design of the push frame and the unlocking head, the device can be disassembled by pressing the unlocking head with one hand. When it is necessary to investigate noise points at close range, the detector can be separated and the detection can be extended through an external probe. With the real-time directional guidance displayed on the screen, the inspector can quickly locate the sound source. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the array detection box structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the noise monitoring instrument of this utility model.

[0021] Figure 4 This is a schematic diagram of the microphone module structure of this utility model.

[0022] Figure 5 This is a side view of the locking component of this utility model.

[0023] The attached diagram is labeled as follows: 1. Array detection box; 2. Array cursor display screen; 3. Plug-in hole; 4. Noise monitor; 5. Switch handle; 6. Locking component; 7. Functional interface; 8. Locking block; 9. Fixing ring; 10. Single probe; 11. Microphone module; 1101. Housing; 12. Array probe; 13. Locking ring; 14. Snap-fit ​​connector; 15. Handle; 16. Unlocking head; 17. Push frame; 18. Push block; 19. Locking block; 20. Spring; 21. Main board; 22. Power supply; 23. External probe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0025] As attached Figures 1 to 5An environmental noise direction detection device based on an array sensor is shown, comprising an array detection box 1 and an array cursor display screen 2. The array cursor display screen 2 is rotatably connected to the top of the array detection box 1. Switch handles 5 are installed on both sides of the array detection box 1. Plug-in holes 3 are provided at the edge of the array detection box 1, and locking components 6 are provided above the plug-in holes 3. A noise monitor 4 is plugged into the plug-in holes 3. The switch handles on both sides of the array detection box 1 can lift the array detection box 1 with the handle 15, and can also switch the detection of the array cursor display screen 2 and the noise monitor 4 with the switch on the handle 15. The array cursor display screen 2 is used to monitor the direction of the sound, while the noise monitor 4 is used to determine the intensity and frequency of the sound. Therefore, by switching, different fixed environments can be detected. The array cursor display screen 2 on the array detection box 1 is used in conjunction with the noise monitor 4.

[0026] In a preferred embodiment, a microphone module 11 is installed on the back of the array cursor display screen 2. The microphone module 11 includes a housing 1101 and an array probe 12. The array probes 12 are arranged at equal intervals on the outer surface of the housing 1101. The motherboard 21 performs calculations with the beamforming algorithm. The information detected by the array probes 12 of the microphone module 11 is measured. By measuring the information detected by the array probes 12, the direction of the sound signal can be calculated using the beamforming algorithm based on these time differences or phase differences. The result is then displayed on the display screen. When the noise monitor 4 is performing coordinated detection, the information detected by the probes on the noise monitor 4 is also displayed on the display screen. At this time, the real-time sound pressure level measured by the probes of the noise monitor 4 is displayed intuitively on the display screen in large font. Depending on the usage scenario, the sound source collected by the noise monitor 4 is used as the trigger. By setting a noise level threshold, when the noise exceeds the threshold, the display screen can highlight the value and simultaneously trigger the array cursor display screen 2 to directly locate the noise position.

[0027] In a preferred embodiment, the array detection box 1 is equipped with a motherboard 21, and a power supply 22 is located below the plug-in hole 3. The motherboard 21 is the core component, used to trigger the operation of the array cursor display screen 2 and the noise monitor 4 to adapt to different usage scenarios, and the power supply 22 provides power to the devices.

[0028] In a preferred embodiment, the locking assembly 6 includes an unlocking head 16 and a pusher 17. The pusher 17 is placed on the side of the unlocking head 16 and is movably connected to the inner wall of the array detection box 1. A pusher block 18 is threadedly connected to the lower part of the pusher block 17, and a locking block 19 is provided on the side of the pusher block 18. The unlocking head 16 and the pusher block 18 are in contact with each other. A locking block 8 is provided above the noise monitor 4. When the noise monitor 4 is inserted into the insertion hole 3, and the probe of the noise monitor 4 is connected to the main board 21 and electrically connected through the external probe 23, the noise monitor 4 is put into use. Then, when the noise monitor 4 is inserted into the insertion hole 3, the noise monitor 4 and the locking assembly 6 are engaged and connected by the locking block 8 and the locking block 19. The back of the noise monitor 4 is equipped with a functional interface 7. At this time, the noise monitor 4 is connected to the locking block 19 of the locking component 6 through the locking block 8, thereby fixing the noise monitor 4. Then, by pushing the locking component 6, the noise monitor 4 is fixed with a fixing ring 9 and a single probe 10. A spring 20 is provided on the side of the locking block 19. The array detection box 1 is located below the array cursor display screen 2 and has an external probe 23. The pushing block 18 pushes the pushing frame 17, causing the pushing frame 17 to move upward and causing the locking block 8 and the locking block 19 to separate. At this time, the spring 20 pushes the locking block 8 to push out the noise monitor 4, thereby completing the connection and separation of the noise monitor 4.

[0029] In a preferred embodiment, the switch handle 5 includes a locking ring 13, a snap-fit ​​connector 14, and a handle 15. The handle 15 is mounted on the side of the locking ring 13, and the snap-fit ​​connector 14 is mounted on the top of the handle 15. The handle 15 can be folded through the lower rotating shaft, and the snap-fit ​​connector 14 of the handle 15 is connected to the locking ring 13 to fix the handle 15. At the same time, the noise monitor 4 can be used independently, and the location of the noise can be found quickly by directly picking up the noise monitor 4 and looking at the noise direction displayed on the array cursor display screen 2.

[0030] In this embodiment, the array cursor display screen 2, noise monitor 4, microphone module 11, motherboard 21, and power supply 22 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, and we will not go into detail here.

[0031] The working process of this utility model is as follows: The switch handles on both sides of the array detection box 1 can lift the array detection box 1 using the handle 15, and can also switch the array cursor display 2 and the noise monitor 4 using the switch on the handle 15. The array cursor display 2 monitors the direction of sound, while the noise monitor 4 determines the intensity and frequency of sound. Therefore, by switching, different fixed environments can be detected. The array cursor display 2 on the array detection box 1 is used in conjunction with the noise monitor 4. The main board 21 uses a beamforming algorithm to calculate the information detected by the array probe 12 of the microphone module 11. The information detected by the measurement array probe 12, through these time differences or phase differences, can be used to calculate the direction of the sound signal using a beamforming algorithm, and then displayed on the screen. When the noise monitor 4 is conducting coordinated detection, the information detected by the probe on the noise monitor 4 is also displayed on the screen. At this time, the real-time sound pressure level measured by the probe of the noise monitor 4 is displayed intuitively on the screen in large font. According to the usage scenario, the sound source collected by the noise monitor 4 is used as the trigger end. By setting a noise level threshold, when the noise exceeds the threshold, the screen can highlight the value and simultaneously trigger the array cursor display screen 2 to directly locate the noise position.

[0032] The motherboard 21 is the core component, used to trigger the operation of the array cursor display 2 and the noise monitor 4 to adapt to different usage scenarios. It is powered by the power supply 22. The noise monitor 4 is inserted into the connector 3, and its probe is connected to the motherboard 21 via an external probe 23 for electrical connection. Simultaneously, the noise monitor 4 connects to the locking block 19 of the locking assembly 6 via the locking card 8, thus securing the noise monitor 4. Then, by pushing the locking component 6, the pushed component 6, through the push block 18 connected to the locking component 6, pushes the push frame 17, causing the push frame 17 to move upward and causing the locking block 8 and locking block 19 to separate. At this time, the spring 20 pushes the locking block 8 to push out the noise monitor 4, thereby completing the connection and separation of the noise monitor 4. The top of the handle 15 is equipped with a snap-fit ​​connector 14. Then the handle 15 can be folded through the rotating shaft below, and the snap-fit ​​connector 14 of the handle 15 is connected to the locking ring 13, thus completing the fixation of the handle 15.

Claims

1. An environmental noise direction detection device based on an array sensor, comprising an array detection box (1) and an array cursor display screen (2), characterized in that: An array cursor display screen (2) is rotatably connected to the top of the array detection box (1). Switch handles (5) are installed on both sides of the array detection box (1). A plug-in hole (3) is provided at the edge of the array detection box (1). A locking component (6) is provided above the plug-in hole (3). A noise monitor (4) is plugged into the plug-in hole (3).

2. The environmental noise directional detection device based on an array sensor according to claim 1, characterized in that: The array cursor display screen (2) has a microphone module (11) mounted on its back side. The microphone module (11) includes a housing (1101) and an array probe (12). The array probe (12) is arranged at equal intervals on the outer surface of the housing (1101).

3. The environmental noise directional detection device based on an array sensor according to claim 1, characterized in that: The array detection box (1) is equipped with a motherboard (21) inside, and a power supply (22) is located below the plug hole (3).

4. The environmental noise directional detection device based on an array sensor according to claim 1, characterized in that: The locking assembly (6) includes an unlocking head (16) and a pusher (17). The pusher (17) is placed on the side of the unlocking head (16) and is movably connected to the inner wall of the array detection box (1).

5. The environmental noise directional detection device based on an array sensor according to claim 4, characterized in that: A push block (18) is threadedly connected to the lower part of the push frame (17), and a locking block (19) is provided on the side of the push block (18). The unlocking head (16) and the push block (18) are in contact with each other.

6. The environmental noise directional detection device based on an array sensor according to claim 5, characterized in that: A locking block (8) is provided on the top of the noise monitor (4). The noise monitor (4) and the locking component (6) are connected by the locking block (8) and the locking block (19). A functional interface (7) is installed on the back of the noise monitor (4). A fixing ring (9) is installed on the top of the noise monitor (4). A single probe (10) is installed on the top of the fixing ring (9).

7. The environmental noise directional detection device based on an array sensor according to claim 5, characterized in that: A spring (20) is provided on the side of the locking block (19), and an external probe (23) is provided on the array detection box (1) below the array cursor display screen (2).

8. The environmental noise directional detection device based on an array sensor according to claim 1, characterized in that: The switch handle (5) includes a locking ring (13), a snap-fit ​​connector (14) and a handle (15). The handle (15) is mounted on the side of the locking ring (13), and the snap-fit ​​connector (14) is mounted on the top of the handle (15).

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