An outdoor noise monitoring sensor

Abstract

The utility model discloses an outdoor noise monitoring sensor relates to noise monitoring sensor technical field. This outdoor noise monitoring sensor, including support sleeve, terminal, connecting wire, terminal and connecting wire electric connection, the inside of support sleeve is provided with sensor mainboard and condenser microphone, sensor mainboard and connecting wire electric connection, the outer wall of support sleeve is close to the top and is provided with the sound hole, the sound hole is in the outside of support sleeve and is distributed in the circular array, the outside of support sleeve is sleeved with T type mounting disc, the outer wall of T type mounting disc is provided with screw hole, the inner wall screw thread connection of screw hole has fastening bolt. The utility model discloses through multiple structure cooperation, avoids the erosion of wind and rain, dust to internal condenser microphone, sensor mainboard, guarantees the stable collection of sound wave signal again, has improved the monitoring precision and equipment durability under the outdoor complex environment significantly.

Description

Technical Field

[0001] This utility model relates to the field of noise monitoring sensor technology, and in particular to an outdoor noise monitoring sensor. Background Technology

[0002] Noise monitoring sensors are mainly used in outdoor locations such as urban roads, industrial parks, construction sites, and residential areas. By collecting, processing, and transmitting real-time noise decibel values ​​in the environment, they enable dynamic monitoring of outdoor noise pollution, providing data support for environmental management and noise control. Their core function is to use a condenser microphone to receive sound wave signals, which are then converted into electrical signals by the sensor's mainboard and processed. These signals are then connected to external devices via terminals to complete data transmission and power supply.

[0003] In practical use, existing outdoor noise monitoring sensors often suffer from the problem of balancing protective structure and sound reception performance. They cannot effectively prevent oblique rainwater and dust carried by strong winds from entering the internal structure through the sound receiving hole, which can easily cause the components to become damp and contaminated, thus shortening the service life of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide an outdoor noise monitoring sensor that solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an outdoor noise monitoring sensor, including a support sleeve, terminals, and connecting wires. The terminals are electrically connected to the connecting wires. A sensor main board and a condenser microphone are disposed inside the support sleeve. The sensor main board is electrically connected to the connecting wires. A sound-receiving hole is opened on the outer wall of the support sleeve near the top. The sound-receiving holes are arranged in a circumferential array on the outer side of the support sleeve. A T-shaped mounting plate is fitted onto the outer side of the support sleeve. A threaded hole is opened on the outer wall of the T-shaped mounting plate. A fastening bolt is threaded onto the inner wall of the threaded hole. A windproof cover is fitted onto the outer wall of the support sleeve. The windproof cover is disposed outside the sound-receiving holes. A stepped waterproof structure is provided above the windproof cover.

[0006] The inner wall of the support sleeve is threaded with a lightning rod, and the outer wall of the lightning rod is threaded with a nut. The outer wall of the nut abuts against the stepped waterproof structure.

[0007] A waterproof component is provided on the outer side of the support sleeve and on the inner side of the windproof cover.

[0008] Preferably, the outer wall of the T-shaped mounting plate has multiple mounting holes, and the T-shaped mounting plate is fixed to the external structure through the mounting holes.

[0009] Preferably, the waterproof component includes a breathable protective shell, the outer wall of which has a sound-absorbing and breathable groove, and a rain-guiding shield is fixedly connected to the outer wall of the breathable protective shell at the sound-absorbing and breathable groove, the rain-guiding shield being inclined.

[0010] Preferably, the upper and lower outer walls of the breathable protective shell are fixedly connected with connecting sleeves, and the inner wall of the lower connecting sleeve is threadedly connected to the outer wall of the supporting sleeve.

[0011] Preferably, the stepped waterproof structure includes an upper waterproof membrane and a secondary waterproof membrane, the upper waterproof membrane and the secondary waterproof membrane being sleeved on the outside of the lightning rod, and the secondary waterproof membrane being disposed below the upper waterproof membrane.

[0012] Preferably, the diameter of the upper waterproof membrane is larger than the diameter of the secondary waterproof membrane.

[0013] Compared with related technologies, the outdoor noise monitoring sensor provided by this utility model has the following advantages:

[0014] This invention provides an outdoor noise monitoring sensor. A windproof cover covering the microphone hole can block strong winds from directly impacting the sound and reduce wind noise, while not affecting the transmission of sound waves. The stepped waterproof structure uses upper and secondary waterproof plates of different diameters to form a stepped shield, reducing rainwater from directly dripping onto the sound receiving area. The inclined rain-guiding shield in the waterproof component can block oblique rainwater, while the sound-receiving ventilation groove ensures air circulation and assists in sound reception. The combination of multiple structures not only avoids the corrosion of the internal capacitive microphone and sensor motherboard by wind, rain and dust, but also ensures stable acquisition of sound wave signals, significantly improving the monitoring accuracy and equipment durability in complex outdoor environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lightning rod structure of this utility model;

[0017] Figure 3 This is a partial structural diagram of the present invention. Figure 1 ;

[0018] Figure 4 This is a partial structural diagram of the present invention. Figure 2 ;

[0019] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Support sleeve; 2. Receiver hole; 3. T-shaped mounting plate; 4. Mounting hole; 5. Fastening bolt; 6. Terminal block; 7. Connecting wire; 8. Windproof cover; 9. Stepped waterproof structure; 901. Upper waterproof membrane; 902. Secondary waterproof membrane; 10. Lightning rod; 11. Nut; 12. Waterproof component; 121. Breathable protective shell; 122. Receiver ventilation channel; 123. Rain guide shield; 124. Connecting sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example:

[0023] Please see Figures 1-5 This utility model provides a technical solution: an outdoor noise monitoring sensor, including a support sleeve 1, a terminal block 6, and a connecting wire 7. The terminal block 6 and the connecting wire 7 are electrically connected. The support sleeve 1 is equipped with a sensor main board and a condenser microphone. The sensor main board is electrically connected to the connecting wire 7. A sound receiving hole 2 is opened on the outer wall of the support sleeve 1 near the top. The sound receiving holes 2 are distributed in a circumferential array on the outer side of the support sleeve 1. A T-shaped mounting plate 3 is sleeved on the outer side of the support sleeve 1. A threaded hole is opened on the outer wall of the T-shaped mounting plate 3. A fastening bolt 5 is threadedly connected to the inner wall of the threaded hole. A windproof cover 8 is sleeved on the outer wall of the support sleeve 1. The windproof cover 8 is located outside the sound receiving hole 2. A stepped waterproof structure 9 is provided above the windproof cover 8.

[0024] The inner wall of the support sleeve 1 is threaded with a lightning rod 10, and the outer wall of the lightning rod 10 is threaded with a nut 11. The outer wall of the nut 11 abuts against the stepped waterproof structure 9.

[0025] A waterproof component 12 is provided on the outside of the support sleeve 1 and on the inside of the windproof cover 8.

[0026] In this implementation scheme, the lightning rod 10 can effectively prevent damage to the equipment caused by lightning strikes, and effectively improve the service life of the equipment. Tighten the fastening bolts 5 on the outer wall of the T-shaped mounting plate 3 so that one end abuts against the outer wall of the support sleeve 1 to achieve relative fixation between the T-shaped mounting plate 3 and the support sleeve 1; loosen the fastening bolts 5 to adjust the height position of the support sleeve 1 inside the T-shaped mounting plate 3 to adapt to the installation requirements of different monitoring scenarios.

[0027] The windproof cover 8 is fitted on the outside of the support sleeve 1 and covers the sound receiving hole 2. It can block strong winds from directly impacting the sound receiving hole 2, avoid wind noise from interfering with the sound receiving accuracy of the condenser microphone, and at the same time, it does not affect the normal transmission of sound waves.

[0028] The T-shaped mounting plate 3 has multiple mounting holes 4 on its outer wall, and the T-shaped mounting plate 3 is fixed to the external structure through the mounting holes 4.

[0029] In this embodiment, the sensor is fixedly installed using a T-shaped mounting plate 3. The T-shaped mounting plate 3 is fixed to a mounting base such as a bracket or wall using mounting holes 4 and external bolts.

[0030] The waterproof component 12 includes a breathable protective shell 121. The outer wall of the breathable protective shell 121 is provided with a sound-absorbing and breathable groove 122. A rain guide shield 123 is fixedly connected to the outer wall of the breathable protective shell 121 at the sound-absorbing and breathable groove 122. The rain guide shield 123 is inclined.

[0031] In this embodiment, in the waterproof component 12, the breathable protective shell 121 is fixed to the lower part of the support sleeve 1 by the connecting sleeve 124. The sound-absorbing and breathable groove 122 on its outer wall ensures air circulation and assists in sound reception. The inclined rain guide shield 123 can block oblique rainwater and prevent rainwater from entering the lower part of the support sleeve 1 through the sound-absorbing and breathable groove 122, thus protecting the wiring terminal 6 and internal circuits.

[0032] Among them, the upper and lower outer walls of the breathable protective shell 121 are fixedly connected with connecting sleeves 124, and the inner wall of the lower connecting sleeve 124 is threadedly connected to the outer wall of the support sleeve 1.

[0033] The stepped waterproof structure 9 includes an upper waterproof membrane 901 and a secondary waterproof membrane 902. The upper waterproof membrane 901 and the secondary waterproof membrane 902 are sleeved on the outside of the lightning rod 10, and the secondary waterproof membrane 902 is located below the upper waterproof membrane 901.

[0034] Among them, the diameter of the upper waterproof membrane 901 is larger than the diameter of the secondary waterproof membrane 902.

[0035] In this embodiment, in the stepped waterproof structure 9, the upper waterproof plate 901 with a larger diameter and the lower secondary waterproof plate 902 form a stepped shield, which can effectively prevent rainwater from dripping directly onto the windproof cover 8 and the sound-absorbing hole 2, reducing rainwater infiltration.

[0036] Working Principle: Outdoor noise enters the interior through the ventilation gaps of the windproof cover 8, and is transmitted into the support sleeve 1 through the sound-receiving holes 2 distributed in a circular array on the outer wall of the top of the support sleeve 1. It is then received by a condenser microphone suspended inside. The condenser microphone converts the sound wave signal into an electrical signal, which is transmitted to the sensor mainboard located within the support sleeve 1. The sensor mainboard processes and analyzes the electrical signal, converting it into identifiable noise monitoring data. The monitoring data processed by the sensor mainboard is transmitted to the terminal block 6 via the connecting cable 7. The terminal block 6 serves as an external interface, enabling electrical connection with external devices (such as data acquisition terminals and power supply units) to complete the export of monitoring data and the access of external power.

[0037] The sensor is fixedly installed using the T-shaped mounting plate 3. The mounting holes 4 and external bolts are used to fix the T-shaped mounting plate 3 to the mounting base such as a bracket or wall. Tighten the fastening bolts 5 on the outer wall of the T-shaped mounting plate 3 so that one end abuts against the outer wall of the support sleeve 1, thereby achieving relative fixation between the T-shaped mounting plate 3 and the support sleeve 1. Loosening the fastening bolts 5 can adjust the height position of the support sleeve 1 inside the T-shaped mounting plate 3 to adapt to the installation requirements of different monitoring scenarios.

[0038] The windproof cover 8 is fitted on the outside of the support sleeve 1 and covers the sound receiving hole 2. It can block strong winds from directly impacting the sound receiving hole 2, avoid wind noise from interfering with the sound receiving accuracy of the condenser microphone, and at the same time, it does not affect the normal transmission of sound waves.

[0039] In the stepped waterproof structure 9, the upper waterproof plate 901 with a larger diameter and the lower secondary waterproof plate 902 form a stepped shield, which can effectively prevent rainwater from dripping directly onto the windproof cover 8 and the sound-absorbing hole 2, reducing rainwater infiltration.

[0040] In the waterproof component 12, the breathable protective shell 121 is fixed to the lower part of the support sleeve 1 by the connecting sleeve 124. The sound-absorbing and breathable groove 122 on its outer wall ensures air circulation and assists in sound reception. The inclined rain-guiding shield 123 can block oblique rainwater and prevent rainwater from entering the lower part of the support sleeve 1 through the sound-absorbing and breathable groove 122, thus protecting the wiring terminal 6 and internal wiring.

[0041] Lightning rod 10 can effectively prevent damage to equipment caused by lightning strikes and effectively improve the service life of the equipment.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An outdoor noise monitoring sensor, comprising a support sleeve (1), a terminal block (6), and a connecting wire (7), wherein the terminal block (6) is electrically connected to the connecting wire (7), and a sensor main board and a condenser microphone are disposed inside the support sleeve (1), wherein the sensor main board is electrically connected to the connecting wire (7), characterized in that: The outer wall of the support sleeve (1) near the top is provided with a sound-receiving hole (2). The sound-receiving holes (2) are arranged in a circular array on the outside of the support sleeve (1). A T-shaped mounting plate (3) is sleeved on the outside of the support sleeve (1). The outer wall of the T-shaped mounting plate (3) is provided with a threaded hole. The inner wall of the threaded hole is threaded with a fastening bolt (5). A windproof cover (8) is sleeved on the outer wall of the support sleeve (1). The windproof cover (8) is located outside the sound-receiving hole (2). A stepped waterproof structure (9) is provided above the windproof cover (8). The inner wall of the support sleeve (1) is threaded with a lightning rod (10), and the outer wall of the lightning rod (10) is threaded with a nut (11). The outer wall of the nut (11) abuts against the stepped waterproof structure (9). A waterproof component (12) is provided on the outside of the support sleeve (1) and on the inside of the windproof cover (8).

2. The outdoor noise monitoring sensor according to claim 1, characterized in that: The outer wall of the T-shaped mounting plate (3) is provided with multiple mounting holes (4), and the T-shaped mounting plate (3) is fixed to the external structure through the mounting holes (4).

3. The outdoor noise monitoring sensor according to claim 1, characterized in that: The waterproof component (12) includes a breathable protective shell (121), the outer wall of which is provided with a sound-absorbing and breathable groove (122), and a rain guide shield (123) is fixedly connected to the outer wall of the breathable protective shell (121) at the sound-absorbing and breathable groove (122), and the rain guide shield (123) is inclined.

4. An outdoor noise monitoring sensor according to claim 3, characterized in that: The upper and lower outer walls of the breathable protective shell (121) are fixedly connected with connecting sleeves (124), and the inner wall of the lower connecting sleeve (124) is threadedly connected to the outer wall of the support sleeve (1).

5. An outdoor noise monitoring sensor according to claim 1, characterized in that: The stepped waterproof structure (9) includes an upper waterproof membrane (901) and a secondary waterproof membrane (902). The upper waterproof membrane (901) and the secondary waterproof membrane (902) are sleeved on the outside of the lightning rod (10), and the secondary waterproof membrane (902) is located below the upper waterproof membrane (901).

6. An outdoor noise monitoring sensor according to claim 5, characterized in that: The diameter of the upper waterproof membrane (901) is larger than the diameter of the secondary waterproof membrane (902).

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