A road equipment operating noise detection device

Abstract

This invention relates to the field of noise detection technology and discloses a road equipment operating noise detection device, comprising a column with a main control box mounted externally and a crossarm mounted on its upper side; a mounting column is connected to the lower part of the crossarm, and a first motor is mounted externally thereon, with its rotor coaxially connected to a first worm gear, and a transmission arm hinged at the bottom; a first worm wheel meshing with the first worm gear is mounted externally on the transmission arm, a second motor is mounted at the top, and a hinge joint is mounted at its outer end; the outer end of the second motor rotor is coaxially connected to the second worm gear, and a mounting base is movably snapped onto the outside of the hinge joint, with a second worm wheel meshing with the second worm gear mounted at its top; an acoustic sensor is mounted at the lower part of the mounting base, and a camera probe is mounted at the upper part; wiring holes are opened on both sides of the bottom of the crossarm. This device, driven by dual motors, allows for flexible adjustment of the pitch and lateral angles of the acoustic sensor and camera probe, accurately capturing noise sources at different locations, improving detection efficiency and accuracy, achieving precise correlation between noise and images, facilitating source tracing and responsibility identification, and demonstrating strong practicality.

Description

Technical Field

[0001] This invention relates to the field of noise detection technology, specifically to a road equipment operation noise detection device. Background Technology

[0002] With the acceleration of urbanization and the expansion of transportation networks, noise pollution from road equipment has become a key issue affecting residents' quality of life and the quality of the urban environment. Data from the World Health Organization shows that more than half of the world's urban residents are chronically exposed to noise levels exceeding health standards. A report on the sound environment quality released by my country's Ministry of Ecology and Environment also points out that the negative impact of traffic noise on residents' quality of life is becoming increasingly significant.

[0003] Common road equipment noise detection devices typically use acoustic sensors and camera probes mounted on a base to collect noise and capture images. However, most of these bases have a fixed design, preventing flexible angle adjustment. This fixed-angle design limits the monitoring angle of the acoustic sensors and camera probes, making it difficult to adapt to noise sources at different heights. It fails to effectively capture noise and images generated by low-altitude road equipment, and also struggles to meet the monitoring needs of high-altitude noise sources, easily leading to missed noise readings and unclear image capture. Furthermore, the fixed-angle structure cannot achieve omnidirectional horizontal monitoring, requiring the entire device to cover road equipment in different directions, resulting in cumbersome operation, low monitoring efficiency, and difficulty in accurately aligning the acoustic sensors with the noise source, thus failing to meet the requirements of noise detection. Therefore, this paper proposes a new road equipment noise detection device. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a road equipment operating noise detection device to solve the technical problems of fixed detection device angle, poor monitoring adaptability, low efficiency, and inconvenient traceability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a road equipment operating noise detection device, comprising a column, a main control box mounted on the outside of the column, and a cross arm mounted on the upper outer side of the column. The lower part of the cross arm is connected to an assembly column, and a first motor is fitted on the outside of the assembly column. The rotor of the first motor is coaxially connected to a first worm gear, and a transmission arm is hinged to the bottom of the assembly column. The first worm gear is installed on the outside of the transmission arm. The first worm meshes with the first worm gear. The top of the transmission arm is equipped with a second motor. The outer end of the transmission arm is equipped with a hinge joint. The second worm is coaxially connected to the outer end of the rotor of the second motor. The hinge joint is externally movably engaged with a mounting base. The top of the mounting base is equipped with a second worm wheel, and the second worm and the second worm wheel mesh with each other. An acoustic sensor is installed at the lower part of the mounting base, and a camera probe is installed at the upper part of the mounting base. Wiring holes are provided at the bottom of the cross arm on both sides of the assembly column.

[0006] Preferably, the main control box integrates a signal conditioning module, a programmable gain amplifier and attenuator, an analog-to-digital converter, a digital signal processing module, a data storage and transmission module, and a power supply and auxiliary module. The connection between the crossarm and the column is welded with reinforcing ribs. The main control box integrates multiple functional modules, which can realize the conditioning, conversion and processing of noise signals, ensuring stable data transmission and storage. The reinforcing ribs improve the connection strength between the crossarm and the column, prevent the equipment from loosening during long-term outdoor use, and extend the service life of the equipment.

[0007] Preferably, the top of the assembly column is connected to the lower surface of the cross arm via a flange. The first motor and the second motor are respectively connected to the surfaces of the assembly column and the transmission arm via brackets and bolts. The assembly column is connected to the cross arm via a flange, and the motor is fixed via brackets and bolts. The connection method is stable and reliable, which can prevent the motor from shaking during operation, ensure the accuracy of angle adjustment, and facilitate the disassembly, inspection and maintenance of the motor in the future.

[0008] Preferably, a through groove is provided inside the mounting base at a position corresponding to the hinge joint. The depth and width of the through groove are both greater than the length and width of the hinge joint. Wear-resistant gaskets are snapped into the hinge joints of the assembly column and the transmission arm, as well as the hinge joint and the mounting base. The through groove size is adapted to the hinge joint, providing sufficient space for the mounting base to swing left and right. The wear-resistant gaskets can reduce frictional loss at the hinge joint, reduce the wear rate of components, and ensure the flexibility of angle adjustment and the stability of equipment operation.

[0009] Preferably, both the upright and the crossarm have hollow interiors. The wiring hole extends through the interior of the crossarm, and a sealing gasket is inserted inside the wiring hole. Through holes are provided on the exterior of the upright and at corresponding positions of the main control box. The hollow structure of the upright and the crossarm facilitates wiring layout. The sealing gasket can seal the wiring hole, and the through holes facilitate wiring installation, effectively preventing dust and rainwater from entering the equipment, avoiding damage to the wiring due to moisture, and ensuring normal operation of the equipment.

[0010] Preferably, an assembly frame is connected to the top of the cross arm, a third motor is installed on the back of the cross arm, a transmission head is coaxially connected to the top of the rotor of the third motor, and hinged arms are movably connected to both sides of the upper surface of the assembly frame. The assembly frame, the third motor and the hinged arms are set at the top of the cross arm, and the hinged arms can be moved by the motor, providing an installation foundation for the subsequent addition of protective structures, improving the scalability of the equipment and adapting to different outdoor monitoring needs.

[0011] Preferably, both ends of the transmission head are hinged with linkage rods, the outer ends of the linkage rods are connected to the corresponding positions of the outer ends of the hinged arms, and the other end of the hinged arms is hinged with a clamp, and a cross plate is sleeved on the outside of the clamp.

[0012] Preferably, the horizontal plate has grooves on both the upper and lower sides, and the clips are respectively engaged in the grooves. The bottom of the horizontal plate is connected to an elastic cloth, and the other end of the elastic cloth is connected to the inside of the assembly frame through a rotating shaft. The transmission head can be rotated by a third motor, which can drive the hinge arm to swing through the linkage rod, thereby pushing the horizontal plate and the elastic cloth to extend, so as to block the camera probe and acoustic sensor.

[0013] Preferably, the top of the cross arm is equipped with connecting plates on both sides of the assembly frame, and the outside of the connecting plates is connected to guide rods, and the outside of the guide rods is fitted with side curtains through rings.

[0014] Preferably, the outer side of the side curtain is connected to both ends of the horizontal plate via a connecting rod, and the positions where the hinge arm and the linkage rod are connected are both L-shaped structures. By adding the side curtain and extending under the action of the horizontal plate, the sides of the camera probe and acoustic sensor can be blocked, thereby improving the protection of the camera probe and acoustic sensor.

[0015] Compared with the prior art, the present invention provides a road equipment operating noise detection device, which has the following beneficial effects: This road equipment noise detection device uses a first motor to drive the rotation of a first worm gear, which in turn drives a transmission arm to tilt and swing up and down. This allows for flexible adjustment of the pitch angle of the acoustic sensor and camera probe, enabling the capture of noise and images generated by road equipment traveling at low altitudes, as well as monitoring of high-altitude noise sources. This avoids problems such as missed noise detection and unclear image capture caused by fixed angles. Simultaneously, a second motor drives the rotation of a second worm gear, which in turn drives the left and right swing of the mounting base. This allows for noise detection and image source tracing of road equipment in different directions, improving detection efficiency. The device allows for precise angle adjustment according to actual monitoring needs, ensuring that the acoustic sensor is always aligned with the noise source, thus improving the accuracy of noise acquisition. At the same time, the camera probe accurately captures images of the road equipment corresponding to the noise source, achieving precise correlation between noise and image, facilitating subsequent noise source tracing and responsibility determination, and enhancing the practicality of the detection equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the cross arm of the present invention; Figure 3This is a schematic diagram of the assembly column and transmission arm structure of the present invention; Figure 4 This is a schematic diagram of the transmission arm structure from below in this invention; Figure 5 This is a schematic diagram of the assembly frame and the third motor structure of the present invention; Figure 6 This is a schematic diagram of the top structure of the cross arm of the present invention; Figure 7 This is a schematic diagram of the horizontal plate structure of the present invention.

[0017] In the diagram: 1. Column; 2. Main control box; 3. Horizontal arm; 4. Assembly column; 5. First motor; 51. First worm gear; 52. First worm wheel; 6. Transmission arm; 7. Second motor; 71. Second worm gear; 72. Second worm wheel; 8. Hinge joint; 9. Mounting base; 91. Through slot; 10. Acoustic sensor; 11. Camera probe; 12. Wiring hole; 13. Assembly frame; 14. Third motor; 15. Transmission head; 16. Hinge arm; 17. Linkage rod; 18. Horizontal plate; 19. Elastic fabric; 20. Slide groove; 21. Clip; 22. Connecting plate; 23. Guide rod; 24. Side curtain. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a technical solution: a road equipment operating noise detection device, comprising a column 1, a main control box 2, a cross arm 3, an assembly column 4, a first motor 5, a first worm gear 51, a first worm wheel 52, a transmission arm 6, a second motor 7, a second worm gear 71, a second worm wheel 72, a hinge joint 8, a mounting base 9, a through groove 91, an acoustic sensor 10, a camera probe 11, a wiring hole 12, an assembly frame 13, a third motor 14, a transmission head 15, a hinge arm 16, a linkage rod 17, a cross plate 18, an elastic cloth 19, a slide groove 20, a clamp 21, a connecting plate 22, a guide rod 23, and a side curtain 24. Please see Figure 1 The main control box 2 is installed on the outside of column 1, and a cross arm 3 is installed on the upper side of the outside of column 1. Please refer to [link / reference]. Figure 2 The lower part of the cross arm 3 is connected to the assembly column 4. Please refer to [link / reference]. Figure 3 The assembly column 4 is fitted with a first motor 5, and the rotor of the first motor 5 is coaxially connected to a first worm gear 51. The bottom of the assembly column 4 is hinged with a transmission arm 6.

[0020] The first worm gear 52 is mounted on the outside of the transmission arm 6. The first worm 51 meshes with the first worm gear 52. The second motor 7 is mounted on the top of the transmission arm 6. Please refer to [link / reference]. Figure 4 The outer end of the transmission arm 6 is equipped with a hinge joint 8.

[0021] Please see Figure 3 The second worm gear 71 is coaxially connected to the outer end of the rotor of the second motor 7. Please refer to [link / reference]. Figure 4 The hinge joint 8 is externally attached to the mounting base 9, and the top of the mounting base 9 is equipped with a second worm gear 72, which meshes with the second worm 71 and the second worm gear 72.

[0022] An acoustic sensor 10 is installed on the lower part of the mounting base 9. A camera probe 11 is installed on the upper part of the mounting base 9. Wiring holes 12 are provided on both sides of the bottom of the cross arm 3, located on the mounting column 4.

[0023] The main control box 2 integrates a signal conditioning module, a programmable gain amplifier and attenuator, an analog-to-digital converter, a digital signal processing module, a data storage and transmission module, and a power supply and auxiliary module. Reinforcing ribs are welded to the connection between the crossarm 3 and the column 1. Please refer to [link / reference]. Figure 2 The top of the assembly column 4 is connected to the lower surface of the cross arm 3 via a flange. The first motor 5 and the second motor 7 are connected to the surfaces of the assembly column 4 and the transmission arm 6 via brackets and bolts, respectively.

[0024] The rotation of the first worm gear 51 driven by the first motor 5 allows the transmission arm 6 to tilt and swing up and down via the first worm wheel 52. This allows for flexible adjustment of the pitch angle of the acoustic sensor 10 and the camera probe 11, enabling the capture of noise and images generated by road equipment traveling at low altitudes, as well as monitoring of high-altitude noise sources. This avoids problems such as missed noise detection and unclear image capture caused by fixed angles. Simultaneously, the rotation of the second worm gear 71 driven by the second motor 7 allows the mounting base 9 to swing left and right via the second worm wheel 72. This enables noise detection and image source tracing of road equipment in different directions, improving detection efficiency. The angle can be precisely adjusted according to actual monitoring needs, ensuring that the acoustic sensor 10 is always aligned with the noise source, improving the accuracy of noise acquisition. At the same time, the camera probe 11 accurately captures the image of the road equipment corresponding to the noise source, achieving precise correlation between noise and image, facilitating subsequent noise source tracing and responsibility identification, and enhancing the practicality of the detection equipment.

[0025] Please see Figure 4 The mounting base 9 has a through groove 91 corresponding to the hinge joint 8. The depth and width of the through groove 91 are greater than the length and width of the hinge joint 8. Wear-resistant gaskets are engaged at the hinge joints of the mounting column 4 and the transmission arm 6, as well as the hinge joint 8 and the mounting base 9. The interiors of the column 1 and the cross arm 3 are hollow structures, and the wiring hole 12 penetrates the interior of the cross arm 3. Please refer to [link / reference]. Figure 2 A sealing gasket is inserted inside the wiring hole 12, and through holes are opened on the outside of the column 1 and at corresponding positions of the main control box 2.

[0026] Please see Figure 5 The top of the crossarm 3 is connected to the mounting bracket 13, and the back of the crossarm 3 is equipped with a third motor 14. Please refer to [link / reference]. Figure 6 The rotor top of the third motor 14 is coaxially connected to a transmission head 15. Hinged arms 16 are movably connected to both sides of the upper surface of the mounting frame 13. Both outer ends of the transmission head 15 are hinged to linkage rods 17, and the outer ends of the linkage rods 17 are connected to the corresponding outer ends of the hinged arms 16. Please refer to [link / reference needed]. Figure 7 The other end of the hinge arm 16 is hinged to a clip 21. A horizontal plate 18 is fitted on the outside of the clip 21. Slide grooves 20 are opened on both the upper and lower sides of the horizontal plate 18. The clip 21 is respectively engaged in the inside of the slide grooves 20. An elastic cloth 19 is connected to the bottom of the horizontal plate 18. The other end of the elastic cloth 19 is connected to the inside of the assembly frame 13 through a rotating shaft. A connecting plate 22 is installed on both sides of the top of the horizontal arm 3 at the assembly frame 13. A guide rod 23 is connected to the outside of the connecting plate 22. A side curtain 24 is fitted on the outside of the guide rod 23 through a ring. The outside of the side curtain 24 is connected to both ends of the horizontal plate 18 through a connecting rod. The connection position between the hinge arm 16 and the linkage rod 17 is an L-shaped structure.

[0027] This solution uses a first motor 5 to drive the rotation of a first worm gear 51, which in turn drives a transmission arm 6 to tilt and swing up and down via a first worm wheel 52. This allows for flexible adjustment of the pitch angle of the acoustic sensor 10 and the camera probe 11, enabling the capture of noise and images generated by road equipment traveling at low altitudes, while also meeting the monitoring needs of high-altitude noise sources. This avoids problems such as missed noise detection and unclear image capture caused by fixed angles. Simultaneously, a second motor 7 drives the rotation of a second worm gear 71, which in turn drives the left and right swing of the mounting base 9 via a second worm wheel 72. This allows for noise detection and image source tracing of road equipment in different directions, improving detection efficiency. The angle can be precisely adjusted according to actual monitoring needs, ensuring that the acoustic sensor 10 is always aligned with the noise source, thus improving the accuracy of noise acquisition. At the same time, the camera probe 11 accurately captures images of road equipment corresponding to the noise source, achieving precise correlation between noise and image, facilitating subsequent noise source tracing and responsibility identification, and enhancing the practicality of the detection equipment.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A road equipment operating noise detection device, comprising a column (1), a main control box (2) being mounted on the outside of the column (1), and a cross arm (3) being mounted on the upper side of the outside of the column (1), characterized in that: The lower part of the cross arm (3) is connected to the assembly column (4), the outside of the assembly column (4) is fitted with a first motor (5), the rotor of the first motor (5) is coaxially connected with a first worm (51), and the bottom of the assembly column (4) is hinged to a transmission arm (6). The first worm gear (52) is installed on the outside of the transmission arm (6). The first worm (51) meshes with the first worm gear (52). The top of the transmission arm (6) is equipped with a second motor (7). The outer end of the transmission arm (6) is equipped with a hinge joint (8). The second worm (71) is coaxially connected to the outer end of the rotor of the second motor (7). The hinge joint (8) is externally attached to the mounting base (9). The top of the mounting base (9) is equipped with a second worm wheel (72). The second worm (71) and the second worm wheel (72) mesh with each other. An acoustic sensor (10) is installed on the lower part of the mounting base (9), and a camera probe (11) is installed on the upper part of the mounting base (9). Wiring holes (12) are provided on both sides of the bottom of the cross arm (3) located on the assembly column (4).

2. The road equipment operating noise detection device according to claim 1, characterized in that: The main control box (2) integrates a signal conditioning module, a programmable gain amplifier and attenuator, an analog-to-digital converter, a digital signal processing module, a data storage and transmission module, and a power supply and auxiliary module. The connection between the cross arm (3) and the column (1) is welded with reinforcing ribs.

3. The road equipment operating noise detection device according to claim 1, characterized in that: The top of the assembly column (4) is connected to the lower surface of the cross arm (3) via a flange. The first motor (5) and the second motor (7) are respectively connected to the surfaces of the assembly column (4) and the transmission arm (6) via a bracket and bolts.

4. The road equipment operating noise detection device according to claim 1, characterized in that: The mounting base (9) has a through groove (91) at the position corresponding to the hinge joint (8). The depth and width of the through groove (91) are greater than the length and width of the hinge joint (8). Wear-resistant pads are snapped into the hinge joints of the assembly column (4) and the transmission arm (6) as well as the hinge joints of the hinge joint (8) and the mounting base (9).

5. The road equipment operating noise detection device according to claim 1, characterized in that: The interior of the column (1) and the cross arm (3) are both hollow structures. The wiring hole (12) penetrates the interior of the cross arm (3). A sealing gasket is inserted inside the wiring hole (12). Through holes are opened on the exterior of the column (1) and at corresponding positions on the main control box (2).

6. The road equipment operating noise detection device according to claim 1, characterized in that: The top of the cross arm (3) is connected to an assembly frame (13), the back of the cross arm (3) is equipped with a third motor (14), the top of the rotor of the third motor (14) is coaxially connected to a transmission head (15), and both sides of the upper surface of the assembly frame (13) are movably connected to hinge arms (16).

7. The road equipment operating noise detection device according to claim 6, characterized in that: Both ends of the transmission head (15) are hinged with linkage rods (17), and the outer ends of the linkage rods (17) are connected to the corresponding positions of the outer ends of the hinged arm (16). The other end of the hinged arm (16) is hinged with a clamp (21), and a cross plate (18) is sleeved on the outside of the clamp (21).

8. The road equipment operating noise detection device according to claim 7, characterized in that: The horizontal plate (18) has grooves (20) on both the upper and lower sides inside. The clips (21) are respectively clipped into the grooves (20). The bottom of the horizontal plate (18) is connected to an elastic cloth (19). The other end of the elastic cloth (19) is connected to the inside of the assembly frame (13) through a rotating shaft.

9. A road equipment operating noise detection device according to claim 8, characterized in that: The top of the cross arm (3) is equipped with connecting plates (22) on both sides of the assembly frame (13). The outside of the connecting plates (22) is connected with guide rods (23), and the outside of the guide rods (23) is fitted with side curtains (24) through rings.

10. A road equipment operating noise detection device according to claim 9, characterized in that: The outer side of the side curtain (24) is connected to both ends of the horizontal plate (18) via a connecting rod, and the hinge arm (16) and the linkage rod (17) are connected at L-shaped positions.

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