Monitoring device with noise pollution intelligent identification function

Abstract

The utility model relates to the field of environment monitoring, in particular to a monitoring device with an intelligent noise pollution identification function, which comprises a monitoring holder, a spherical camera, a noise detection tower, a tower cover, a rain cover and a sound monitoring structure. A spherical camera used for monitoring the surrounding environment is arranged below the monitoring holder, a sound noise detection tower used for containing a noise monitoring structure is arranged above the monitoring holder, an element bin is formed in the sound noise detection tower, and a sound monitoring structure used for detecting noise of the surrounding environment is arranged in the element bin. The sound monitoring structure comprises a circuit board, a voiceprint recognition module, a sound source positioning module, a recording module, a communication module, a data processing module, an interface module and a microphone module; according to the utility model, the monitoring holder, the spherical camera, the sound noise detection tower and the sound monitoring structure are combined, so that a worker can flexibly adjust the angle of the spherical camera in 360 degrees through the monitoring holder, thereby monitoring the surrounding environment in all directions.

Description

Technical Field

[0001] The utility model relates to the field of environmental monitoring, in particular to a monitoring device with intelligent recognition of noise pollution. Background Art

[0002] Urban sound environment monitoring is the process of monitoring and evaluating the quality and condition of the urban sound environment. It is of great significance for understanding the current status of urban noise pollution, formulating noise control strategies, and improving the living environment of residents. Traditional noise monitoring methods often have difficulty accurately identifying noise sources and are easily interfered with by natural sounds in complex environments. They cannot meet the needs of efficient and accurate monitoring of noise pollution. Therefore, there is a need for an intelligent monitoring system that can effectively distinguish between natural sounds and noise and accurately locate the noise source.

[0003] Traditional noise monitoring methods often have difficulty accurately identifying noise sources and are easily interfered with by natural sounds in complex environments, and cannot meet the needs of efficient and accurate monitoring of noise pollution.

[0004] Therefore, to address the aforementioned difficulties in accurately identifying noise sources and the susceptibility to interference from natural sounds, a monitoring device with intelligent noise pollution identification can be designed. This employs multiple highly sensitive, wideband microphones as sound sensors, evenly distributed around the circumference in two circular arrays, eight microphones each. This layout facilitates the collection of sound signals from different angles, providing more comprehensive data for subsequent sound source localization, thus facilitating the solution to the aforementioned problem. Utility Model Content

[0005] In order to overcome the problem that traditional noise monitoring methods often have difficulty in accurately identifying noise sources and are easily interfered with by natural sounds in complex environments, they cannot meet the needs of efficient and accurate monitoring of noise pollution.

[0006] The technical solution of the utility model is: a monitoring device with intelligent identification of noise pollution, comprising a monitoring platform, a spherical camera, a noise detection tower, a tower cover, a rain cover and a sound monitoring structure; the monitoring platform comprises a platform body, a fixing frame and a connecting shaft, a spherical camera for monitoring the surrounding environment is provided below the monitoring platform, a noise detection tower for accommodating the noise monitoring structure is provided above the monitoring platform, a component warehouse is provided inside the noise detection tower, a sound monitoring structure for detecting the surrounding environment noise is provided inside the component warehouse, the sound monitoring structure comprises a circuit board, a voiceprint recognition module, a sound source positioning module, a recording module, a communication module, a data processing module, an interface module and a microphone module, a time difference measurement unit and a spatial positioning calculation unit are provided inside the sound source positioning module, a tower cover is provided above the noise detection tower, the tower cover is matched and buckled with the noise detection tower, a rain cover for preventing rainwater from entering the component warehouse is provided above the tower cover, a first-level mounting buckle and a second-level mounting buckle are respectively provided between the noise detection tower and the monitoring platform, and the first-level mounting buckle and the second-level mounting buckle are matched and buckled with each other.

[0007] Preferably, compared with traditional noise monitoring methods that are often difficult to accurately identify noise sources, the present application combines a monitoring pan-tilt, a spherical camera, a sound noise detection tower and a sound monitoring structure, so that staff can use the monitoring pan-tilt to flexibly adjust the angle of the spherical camera 360 degrees, thereby comprehensively monitoring the surrounding environment. At the same time, the sound source feature extraction, model training and matching are performed through the voiceprint recognition module of the sound monitoring structure, so that natural sounds and noise can be accurately distinguished, effectively avoiding the interference of natural sounds on noise monitoring. The time difference measurement unit and the spatial positioning calculation unit of the sound source positioning module analyze the sound signals collected by the microphone module array, and the time difference between the signals reaching different microphone modules is used to determine the approximate direction of the sound source. The spatial positioning calculation unit receives the time difference data and the geometric parameter information of the microphone module, and uses the triangulation positioning algorithm based on geometric relationships to calculate the coordinates of the sound source in three-dimensional space. The spherical camera and the recording module collect audio and video samples, and the data processing module and the communication module are connected to the external network and perform audio and video data calculation, thereby accurately avoiding the interference of environmental sounds and identifying accurate noise source signals.

[0008] Preferably, four groups of support shafts are evenly provided at the bottom edge of the component warehouse, and a first-level mounting hole is opened in the center of each of the four groups of support shafts. Eight groups of middle-section camera holes are opened around the middle section of the inner wall of the component warehouse, and eight groups of bottom camera holes are opened around the bottom edge of the component warehouse. Four groups of support seats are arranged around the upper edge of the noise detection tower, and support holes are opened at the upper ends of the four groups of support seats. Four groups of support rods are evenly provided at the lower end of the rain cover, and the lower ends of the support rods extend to the inside of the support holes.

[0009] Preferably, the circuit board is located in the center of the component warehouse, and secondary mounting holes are opened at the corners of the circuit board. The secondary mounting holes are concentrically arranged with the primary mounting holes. The voiceprint recognition module, sound source positioning module, recording module, communication module and data processing module are all distributed on the surface of the circuit board.

[0010] Preferably, the interface module is located at one end edge of the circuit board, a battery seat is provided on one side of the circuit board, a battery pack is provided inside the battery seat, and the battery pack is electrically connected to the interface module.

[0011] Preferably, sixteen groups of microphone modules are provided, of which eight groups of microphone modules are located inside the eight groups of middle camera holes, and the other eight groups of microphone modules are located inside the eight groups of bottom camera holes. The rear ends of the sixteen groups of microphone modules are respectively provided with a primary signal coil and a secondary signal coil. The sixteen groups of microphone modules are connected in series in sequence through the primary signal coil and the secondary signal coil, and the sixteen groups of microphone modules are electrically connected to the circuit board through the primary signal coil and the secondary signal coil.

[0012] Preferably, rubber gaskets are provided between the sixteen microphone modules and the bottom camera holes and the middle camera holes, and protective covers are provided at the front ends of the sixteen microphone modules, and multiple groups of fine mesh holes are evenly arranged on the surface of the protective covers.

[0013] Preferably, the connecting shaft is located above the gimbal body, a horizontal rotating shaft is provided between the connecting shaft and the gimbal body, the connecting shaft and the gimbal body are movably connected through the horizontal rotating shaft, two groups of fixing frames are provided, the two groups of fixing frames are symmetrically arranged along the lower end of the gimbal body, vertical rotating shafts are provided on the inner sides of the two groups of fixing frames, the spherical camera is movably connected to the fixing frame through the vertical rotating shaft, and a driver is provided inside the gimbal body.

[0014] Beneficial effects of the utility model:

[0015] 1. Compared with traditional noise monitoring methods, which often find it difficult to accurately identify noise sources, this application combines a monitoring pan-tilt system, a spherical camera, a noise detection tower, and a sound monitoring structure. This allows staff to use the monitoring pan-tilt system to flexibly adjust the spherical camera's angle 360 ​​degrees, thereby comprehensively monitoring the surrounding environment. At the same time, the sound source feature extraction, model training, and matching are performed through the sound pattern recognition module of the sound monitoring structure, thereby accurately distinguishing natural sounds from noise, effectively avoiding the interference of natural sounds on noise monitoring. The time difference measurement unit and spatial positioning calculation unit of the sound source localization module analyze the sound signals collected by the microphone module array, and the time difference between the signals reaching different microphone modules is used to determine the approximate direction of the sound source. The spatial positioning calculation unit receives the time difference data and the geometric parameter information of the microphone module, and uses a triangulation positioning algorithm based on geometric relationships to calculate the coordinates of the sound source in three-dimensional space. The spherical camera and recording module collect audio and video samples, and the data processing module and communication module are connected to the external network to perform audio and video data calculation, thereby accurately avoiding the interference of ambient sound and identifying accurate noise source signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the overall structure of the monitoring device of the present utility model;

[0017] Figure 2 Shown is a schematic diagram of the noise detection tower structure of the monitoring device of the utility model;

[0018] Figure 3 Shown is a schematic diagram of the acoustic monitoring structure of the monitoring device of the present utility model;

[0019] Figure 4 Shown is a schematic diagram of the monitoring pan-tilt structure of the monitoring device of the present invention.

[0020] Explanation of the accompanying symbols: 1. Monitoring pan-tilt head; 2. Spherical camera; 3. Primary mounting buckle; 4. Secondary mounting buckle; 5. Noise detection tower; 6. Component compartment; 7. Sound monitoring structure; 8. Tower cover; 9. Rain cover; 10. Support rod; 11. Bottom camera hole; 12. Middle camera hole; 13. Support shaft; 14. Primary mounting hole; 15. Support seat; 16. Support hole; 17. Circuit board; 18. Secondary mounting hole; 19. Voiceprint recognition module; 20. Sound source positioning module; 21. Recording module; 22. Communication module; 23. Data processing module; 24. Interface module; 25. Primary signal coil; 26. Secondary signal coil; 27. Microphone module; 28. Rubber gasket; 29. ​​Protective cover; 30. Battery holder; 31. Battery pack; 101. Connecting shaft; 102. Horizontal rotation axis; 103. Pan-tilt head body; 104. Fixing bracket; 105. Vertical rotation axis. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figures 1-4 The utility model provides an embodiment: a monitoring device with intelligent recognition of noise pollution, including a monitoring platform 1, a spherical camera 2, a noise detection tower 5, a tower cover 8, a rain cover 9 and a sound monitoring structure 7; the monitoring platform 1 includes a platform body 103, a fixing frame 104 and a connecting shaft 101, a spherical camera 2 for monitoring the surrounding environment is provided below the monitoring platform 1, a noise detection tower 5 for accommodating the noise monitoring structure is provided above the monitoring platform 1, a component warehouse 6 is provided inside the noise detection tower 5, and a sound monitoring structure 7 for detecting the surrounding environment noise is provided inside the component warehouse 6. It includes a circuit board 17, a voiceprint recognition module 19, a sound source positioning module 20, a recording module 21, a communication module 22, a data processing module 23, an interface module 24 and a microphone module 27. The interior of the sound source positioning module 20 is provided with a time difference measurement unit and a space positioning calculation unit. A tower cover 8 is provided above the noise detection tower 5, and the tower cover 8 is matched and fastened with the noise detection tower 5. A rainproof cover 9 is provided above the tower cover 8 to prevent rainwater from entering the component compartment 6. A first-level mounting buckle 3 and a second-level mounting buckle 4 are respectively provided between the noise detection tower 5 and the monitoring pan-tilt platform 1, and the first-level mounting buckle 3 and the second-level mounting buckle 4 are matched and fastened.

[0023] See also Figure 1-Figure 2 In this embodiment, four groups of support shafts 13 are evenly provided at the bottom edge of the component bin 6, and a first-level mounting hole 14 is opened in the center of the four groups of support shafts 13. Eight groups of middle-section camera holes 12 are opened around the middle section of the inner wall of the component bin 6, and eight groups of bottom camera holes 11 are opened around the bottom edge of the component bin 6. Four groups of support seats 15 are arranged around the upper edge of the noise detection tower 5, and the upper ends of the four groups of support seats 15 are all provided with support holes 16. Four groups of support rods 10 are evenly provided at the lower end of the rain cover 9, and the lower ends of the support rods 10 extend into the interior of the support holes 16. The support seats 15 are combined with the support rods 10, so that the protective cover 29 can be fixed on the top of the noise detection tower 5 to prevent Rainwater entering the interior of the component warehouse 6 protects the sound monitoring structure 7 in the noise detection tower 5. The circuit board 17 is located in the center of the component warehouse 6. Secondary mounting holes 18 are opened at the corners of the circuit board 17. The secondary mounting holes 18 are concentrically arranged with the primary mounting holes 14. The voiceprint recognition module 19, the sound source positioning module 20, the recording module 21, the communication module 22 and the data processing module 23 are all distributed on the surface of the circuit board 17. Through the combination of the primary mounting holes 14 and the secondary mounting holes 18, the staff can screw the screws from the secondary mounting holes 18 into the inside of the primary mounting holes 14, so that the circuit board 17 can be suspended and supported by the support shaft 13 and installed inside the component warehouse 6.

[0024] See also Figure 2-Figure 3 In this embodiment, the interface module 24 is located at one end edge of the circuit board 17, a battery holder 30 is provided on one side of the circuit board 17, a battery pack 31 is provided inside the battery holder 30, and the battery pack 31 is electrically connected to the interface module 24. There are sixteen groups of microphone modules 27, eight of which are located inside the eight middle camera holes 12, and the other eight are located inside the eight bottom camera holes 11. By combining the sixteen microphone modules 27, the sixteen microphone modules 27 can be evenly distributed between the eight bottom camera holes 11 and the eight middle camera holes 12. Inside the hole 12, the surrounding environment sound source samples of the monitoring device are collected in all directions. The rear ends of the sixteen groups of microphone modules 27 are respectively provided with a primary signal coil 25 and a secondary signal coil 26. The sixteen groups of microphone modules 27 are connected in series in sequence through the primary signal coil 25 and the secondary signal coil 26. The sixteen groups of microphone modules 27 are electrically connected to the circuit board 17 through the primary signal coil 25 and the secondary signal coil 26. Through the combination of the primary signal coil 25 and the secondary signal coil 26, the sixteen groups of microphone modules 27 can transmit the collected sound source signals to the circuit board for signal processing.

[0025] See also Figure 3-Figure 4 In this embodiment, rubber gaskets 28 are provided between the sixteen microphone modules 27 and the bottom camera holes 11 and the middle camera holes 12. The front ends of the sixteen microphone modules 27 are all provided with protective covers 29. The surface of the protective cover 29 is evenly provided with multiple groups of fine mesh holes. The rubber gaskets 28 can reduce the influence of external vibration on the microphone, ensuring the accuracy of sound collection. The combination of the protective cover 29 and the fine mesh holes can ensure the normal transmission of sound and effectively prevent external impurities from damaging the microphone. The connecting shaft 101 is located above the pan-tilt body 103, and there is a The horizontal rotation axis 102, the connecting axis 101 and the pan-tilt body 103 are movably connected through the horizontal rotation axis 102. There are two groups of fixing frames 104, and the two groups of fixing frames 104 are symmetrically arranged along the lower end of the pan-tilt body 103. The inner sides of the two groups of fixing frames 104 are both provided with vertical rotation axes 105. The spherical camera 2 is movably connected to the fixing frames 104 through the vertical rotation axis 105. A driver is provided inside the pan-tilt body 103, and through the combination of the horizontal rotation axis 102 and the vertical rotation axis 105, the driver can drive the pan-tilt body 103 to drive the spherical camera 2 to adjust the angle in all directions through the horizontal rotation axis 102 and the vertical rotation axis 105.

[0026] During operation, the protective cover 29 can be fixed above the noise detection tower 5 by combining the support seat 15 and the support rod 10, preventing rainwater from entering the interior of the component bin 6 and protecting the sound monitoring structure 7 inside the noise detection tower 5.

[0027] By combining the primary mounting hole 14 with the secondary mounting hole 18 , the worker can screw the screw from the secondary mounting hole 18 into the primary mounting hole 14 , so that the circuit board 17 can be suspended and supported by the support shaft 13 and installed inside the component bin 6 .

[0028] By combining sixteen groups of microphone modules 27, the sixteen groups of microphone modules 27 can be evenly distributed inside the eight groups of bottom camera holes 11 and the eight groups of middle camera holes 12, and the surrounding environment sound source samples of the monitoring device are collected in all directions. By combining the primary signal coil 25 and the secondary signal coil 26, the sixteen groups of microphone modules 27 can transmit the collected sound source signals to the circuit board for signal processing.

[0029] Through the above steps, the present application combines the monitoring platform 1, the spherical camera 2, the noise detection tower 5 and the sound monitoring structure 7, so that the staff can use the monitoring platform 1 to flexibly adjust the angle of the spherical camera 2 360 degrees, thereby comprehensively monitoring the surrounding environment. At the same time, the sound source feature extraction, model training and matching are performed through the voiceprint recognition module 19 of the sound monitoring structure 7, so that natural sounds and noise can be accurately distinguished, and the interference of natural sounds on noise monitoring can be effectively avoided. The time difference measurement unit and the spatial positioning calculation unit of the sound source localization module 20 are used to analyze the sound signals collected by the microphone module 27 array, and the time difference between the signals reaching different microphone modules 27 is used to determine the approximate direction of the sound source. The spatial positioning calculation unit receives the time difference data and the geometric parameter information of the microphone module 27, and uses the triangulation positioning algorithm based on geometric relationships to calculate the coordinates of the sound source in three-dimensional space, and collects audio and video samples through the spherical camera 2 and the recording module 21. The data processing module 23 and the communication module 22 are connected to the external network and audio and video data calculations are performed, thereby accurately avoiding the interference of environmental sounds and identifying accurate noise source signals.

Claims

1. A monitoring device with intelligent noise pollution recognition, comprising a monitoring platform (1); characterized in that: The invention also includes a spherical camera (2), a noise detection tower (5), a tower cover (8), a rain cover (9) and a sound monitoring structure (7); the monitoring platform (1) includes a platform body (103), a fixing frame (104) and a connecting shaft (101); a spherical camera (2) for monitoring the surrounding environment is provided below the monitoring platform (1); a noise detection tower (5) for accommodating the noise monitoring structure is provided above the monitoring platform (1); a component warehouse (6) is provided inside the noise detection tower (5); a sound monitoring structure (7) for detecting the surrounding environment noise is provided inside the component warehouse (6); the sound monitoring structure (7) includes a circuit board (17), a voiceprint recognition module (19), A sound source positioning module (20), a recording module (21), a communication module (22), a data processing module (23), an interface module (24) and a microphone module (27) are provided. A time difference measurement unit and a space positioning calculation unit are provided inside the sound source positioning module (20). A tower cover (8) is provided above the sound noise detection tower (5). The tower cover (8) and the sound noise detection tower (5) are matched and fastened. A rain cover (9) for preventing rainwater from entering the component compartment (6) is provided above the tower cover (8). A first-level mounting buckle (3) and a second-level mounting buckle (4) are respectively provided between the sound noise detection tower (5) and the monitoring platform (1). The first-level mounting buckle (3) and the second-level mounting buckle (4) are matched and fastened.

2. The monitoring device with intelligent noise pollution identification according to claim 1, characterized in that: Four groups of support shafts (13) are evenly arranged at the bottom edge of the component warehouse (6), and the centers of the four groups of support shafts (13) are all provided with a first-level mounting hole (14). Eight groups of middle-section camera holes (12) are provided around the middle section of the inner wall of the component warehouse (6), and eight groups of bottom camera holes (11) are provided around the bottom edge of the component warehouse (6). Four groups of support seats (15) are provided around the upper edge of the noise detection tower (5), and the upper ends of the four groups of support seats (15) are all provided with a support hole (16). Four groups of support rods (10) are evenly arranged at the lower end of the rain cover (9), and the lower ends of the support rods (10) extend to the inside of the support hole (16).

3. The monitoring device with intelligent noise pollution identification according to claim 2, characterized in that: The circuit board (17) is located at the center of the component compartment (6). Secondary mounting holes (18) are provided at the corners of the circuit board (17). The secondary mounting holes (18) are concentrically arranged with the primary mounting holes (14). The voiceprint recognition module (19), the sound source positioning module (20), the recording module (21), the communication module (22) and the data processing module (23) are all arranged on the surface of the circuit board (17).

4. The monitoring device with intelligent noise pollution identification according to claim 1, characterized in that: The interface module (24) is located at one end edge of the circuit board (17). A battery seat (30) is provided on one side of the circuit board (17). A battery pack (31) is provided inside the battery seat (30). The battery pack (31) is electrically connected to the interface module (24).

5. The monitoring device with intelligent noise pollution identification according to claim 4, characterized in that: Sixteen groups of microphone modules (27) are provided, wherein eight groups of microphone modules (27) are located inside the eight groups of middle camera holes (12), and the other eight groups of microphone modules (27) are located inside the eight groups of bottom camera holes (11). The rear ends of the sixteen groups of microphone modules (27) are respectively provided with a primary signal coil (25) and a secondary signal coil (26). The sixteen groups of microphone modules (27) are sequentially connected in series through the primary signal coil (25) and the secondary signal coil (26). The sixteen groups of microphone modules (27) are electrically connected to the circuit board (17) through the primary signal coil (25) and the secondary signal coil (26).

6. The monitoring device with intelligent noise pollution identification according to claim 5, characterized in that: Rubber gaskets (28) are provided between the sixteen microphone modules (27) and the bottom camera hole (11) and the middle camera hole (12). The front ends of the sixteen microphone modules (27) are provided with protective covers (29), and the surface of the protective covers (29) is evenly provided with multiple groups of fine mesh holes.

7. The monitoring device with intelligent noise pollution identification according to claim 1, characterized in that: The connecting shaft (101) is located above the pan-tilt platform body (103); a horizontal rotating shaft (102) is provided between the connecting shaft (101) and the pan-tilt platform body (103); the connecting shaft (101) and the pan-tilt platform body (103) are movably connected via the horizontal rotating shaft (102); two groups of fixing frames (104) are provided; the two groups of fixing frames (104) are symmetrically arranged along the lower end of the pan-tilt platform body (103); vertical rotating shafts (105) are provided on the inner sides of the two groups of fixing frames (104); the spherical camera (2) is movably connected to the fixing frame (104) via the vertical rotating shaft (105); and a driver is provided inside the pan-tilt platform body (103).

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