Road traffic noise monitoring device, system and use method thereof

Abstract

The present invention belongs to the technical field of measurement devices and provides a road traffic noise monitoring device, system, and method for using the same. The monitoring device comprises: a frame having three closed sides and one open side, and a plate having one end hinged to one end of the frame and the other end detachably connected to the other end of the frame; a sound level meter detachably mounted on the exterior of the frame; a crawling device, one mounted on each of the three side walls of the frame and the plate, with multiple crawling devices acting together on a longitudinally extending tubular object to enable the frame to be raised and lowered on the tubular object; a control module for controlling the operation of the crawling devices; and a battery module for powering the crawling devices and the control module. The present invention eliminates the need for full staff participation in monitoring, thereby reducing labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring devices, and in particular to a road traffic noise monitoring device, a system and a method of using the same. Background Art

[0002] In order to reflect the noise intensity of road traffic noise sources, analyze the relationship and changing patterns of road traffic noise levels with vehicle volume, road conditions, etc., and analyze the annual changing patterns and changing trends of urban road traffic noise, it is necessary to monitor urban road traffic noise. At each monitoring point, continuous monitoring is required for 24 hours. Currently, two monitoring teams are usually arranged, and the two teams take turns to carry out noise monitoring work, keep relevant environmental information, monitoring results and other monitoring records, and keep the detection equipment guarded 24 hours a day to ensure the safety of the equipment and stable operation, respond to emergencies, ensure data security, and prevent data loss. Therefore, it can be seen that the current monitoring method that requires full participation of staff requires a lot of manpower costs. Summary of the Invention

[0003] In view of the defects in the prior art, the purpose of the present invention is to provide a road traffic noise monitoring device, system and use method thereof, so that staff do not need to participate in the monitoring throughout the process, thereby reducing labor costs.

[0004] According to one aspect of an embodiment of the present invention, there is provided a road traffic noise monitoring device, comprising: a frame having a frame body with three closed sides and one open side, and a plate body with one end hinged to one end of the frame body and the other end detachably connected to the other end of the frame body; a sound level meter detachably arranged on the outside of the frame body; a crawling device, one of which is respectively provided on the three side walls of the frame body and the plate body, and a plurality of the crawling devices acting together on a tubular object extending in the longitudinal direction so that the frame can be raised and lowered on the tubular object; a control module for controlling the operation of the crawling device; and a battery module for supplying power to the crawling device and the control module.

[0005] Preferably, the crawling device includes: a mounting frame, which is arranged on the inner side of the frame or the inner side of the plate; a crawling wheel, which is rotatably arranged on the mounting frame; and a first motor, which is used to drive the crawling wheel to rotate.

[0006] Preferably, the crawling device also includes an adjustment mechanism, which includes: a first slide groove, fixedly arranged on the inner side of the frame or the inner side of the plate body, and slidingly connected to the mounting frame; a screw rod, rotatably connected to the frame body or the plate body, one end of which is located in the first slide groove and threadedly connected to the mounting frame, and the other end of which is located on the outside of the frame body or the plate body; and a handle, fixedly arranged on the other end of the screw rod.

[0007] Preferably, the mounting frame includes a base plate and two first connecting arms relatively arranged on the base plate, the base plate is threadedly connected to the screw rod and slidingly connected to the first slide groove, the first connecting arm includes: a tube body, one end of which is fixedly connected to the base plate; a rod body, one end of which is slidingly arranged in the tube body, and the other end is rotatably connected to the crawler wheel; and a first compression spring, which is arranged in the tube body, and its two ends are respectively abutted against the tube body and the rod body.

[0008] Preferably, the crawling device also includes an auxiliary fixing mechanism for keeping the frame on the tubular object, the auxiliary fixing mechanism including: a bracket fixedly connected to the other end of the rod body; an electromagnetic suction cup slidably arranged on the bracket; and a second compression spring, the two ends of which are respectively abutted against the bracket and the electromagnetic suction cup, so as to make the electromagnetic suction cup tend to approach the tube body.

[0009] Preferably, the device further comprises: a mounting base fixedly arranged on the outer side of the frame body, on which a slot for inserting the sound level meter is provided; and a retaining device for retaining the sound level meter in the slot.

[0010] Preferably, the retaining device includes: a second slide groove, which is arranged on the mounting seat; a second connecting arm, which is arranged longitudinally and the lower end is slidably arranged in the second slide groove; a limiting rod, which is fixedly arranged at the upper end of the second connecting arm; and a driving device for driving the second connecting arm to slide in the second slide groove.

[0011] Preferably, the other end of the frame is provided with a lock body that can generate magnetic force, and the other end of the plate is provided with an iron block that can attract the lock body, and the driving device includes: a transmission rod, which is slidably arranged on a side wall of the frame, and one end can abut against the other end of the plate; a third compression spring is used to make one end of the transmission rod have a tendency to approach the other end of the plate; a first rack, which is fixedly arranged on the other end of the transmission rod; a first gear, which is rotatably arranged on the mounting seat and meshes with the first rack; a telescopic mechanism, which has a plurality of parallel four-bar linkage mechanisms connected in sequence, one end of the telescopic mechanism is hinged to the mounting seat, and the other end is hinged to the second connecting arm; and a second rack, which is slidably arranged on the mounting seat, one end is transmission-connected to the first gear, and the other end is hinged to the connection parts of two adjacent parallel four-bar linkage mechanisms in the telescopic mechanism.

[0012] According to another aspect of the embodiment of the present invention, a road traffic noise monitoring system is provided, comprising the above-mentioned road traffic noise monitoring device, and further comprising: a camera, arranged on the outer wall of the frame and rotatable in a vertical plane, for acquiring image information of a target person in a target area; a second motor, for driving the camera to rotate; a processing module, for receiving image data and analyzing it based on the behavior and occupational information of the target person; an alarm module, for receiving information from the processing module and issuing an alarm message according to preset rules; a voice module, for receiving information from the processing module and issuing a voice prompt; and a mobile terminal, communicatively connected to the control module, for sending control information and receiving the alarm message.

[0013] According to another aspect of the embodiment of the present invention, a method for using a road traffic noise monitoring system is provided, comprising the following steps: inserting a sound level meter into the card slot; sleeved onto the outside of the tubular object; maintaining the sound level meter in the card slot by the retaining device; making the crawling wheel abut against the outer surface of the tubular object by the adjusting mechanism; controlling the operation of the crawling device by a control module and maintaining the frame at a certain height; adjusting the shooting angle of the camera by a control module according to the height maintained by the crawling device; and sending control instructions to the crawling device and the alarm device by the control module according to the processing result of the processing module, so as to adjust the height of the frame and send an alarm message to the mobile device.

[0014] The beneficial effects of the present invention include: The road traffic noise monitoring device, system, and method of use provided herein can be installed on readily available tubular objects, such as streetlight poles or utility poles. The device then climbs to a certain height using a crawler mechanism to perform 24-hour continuous monitoring. This eliminates the need for full human presence during the monitoring process, significantly reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0016] Figure 1 A perspective view of a road traffic noise monitoring device provided by one embodiment of the present invention;

[0017] Figure 2 for Figure 1 A top view of the road traffic noise monitoring device shown;

[0018] Figure 3 for Figure 2 AA section view;

[0019] Figure 4 for Figure 1 A three-dimensional diagram of some structures in the;

[0020] Figure 5 It is a three-dimensional diagram of the crawling device;

[0021] Figure 6 for Figure 4 A three-dimensional diagram of some structures in;

[0022] Reference numerals:

[0023] 100. Tubular objects;

[0024] 10. Frame; 11. Frame; 12. Lock body; 13. Iron block; 14. Plate;

[0025] 20. Sound level meter;

[0026] 30. Crawling device; 31. Mounting frame; 311. Base plate; 312. First connecting arm; 3121. Tube; 3122. Rod; 3123. First compression spring; 32. Crawling wheel; 33. First motor; 34. Adjustment mechanism; 341. First slide; 342. Screw; 343. Handle; 35. Auxiliary fixing mechanism; 351. Bracket; 352. Electromagnetic suction cup; 353. Second compression spring;

[0027] 40. Mounting seat; 41. Card slot;

[0028] 50. Holding device; 51. Second slide groove; 52. Second connecting arm; 521. First arm body; 522. Second arm body; 53. Limiting rod; 54. Driving device; 541. Transmission rod; 542. Third compression spring; 543. First rack; 544. First gear; 545. Belt transmission mechanism; 546. Second gear; 547. Telescopic mechanism; 548. Second rack;

[0029] 60. Camera; 61. Second motor. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0031] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the technical features indicated. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0034] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0035] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0036] like Figure 1-6As shown, this embodiment provides a road traffic noise monitoring device, comprising a frame 10, a sound level meter 20, a crawling device 30, a control module, and a battery module. The frame 10 is generally rectangular and comprises a frame 11 and a plate 14. The frame 11 is closed on three sides and open on one side. One end of the plate 14 is hinged to one end of the frame 11, and the other end is detachably connected to the other end of the frame 11. The sound level meter 20 is detachably mounted on the outside of the frame 11, and the detachable connection can be achieved by means of a snap-fit connection, interference fit, or bolt connection. A crawling device 30 is provided on each of the three side walls of the frame 11 and the plate 14. Multiple crawling devices 30 act together on a longitudinally extending tubular object 100. The tubular object 100 can be a readily available tubular object 100, such as a streetlight pole or utility pole installed along a road, or can be a tubular object 100 fixed to the ground by a worker using expansion bolts. The crawling devices 30 are used to enable the frame 10 to be raised and lowered on the tubular object 100 and to maintain the tubular object 100 at a certain height. A control module (not shown) is used to control the crawling devices 30. The control module can be a controller installed on the frame 10, such as a PLC or microcomputer. A battery module (not shown) is used to power the crawling devices 30 and the control module. The battery module can be powered by dry cells or rechargeable lithium batteries. In addition, considering 24-hour continuous monitoring, the battery module can also be used to power the sound level meter 20.

[0037] This embodiment provides a road traffic noise monitoring device. During use, a worker secures the sound level meter 20 to the frame 10, then opens the panel 14 so that the frame 10 can be placed over the tubular object 100. The panel 14 is then closed, and the four crawling devices 30 on the frame 10 are brought into contact with the surface of the tubular object 100. The control module then controls the crawling devices 30, causing the frame 10 to rise or fall and ultimately maintain a certain height. According to the relevant requirements of the "Technical Specifications for Environmental Noise Monitoring (HJ640-2012)", the height of the monitoring point should be 1.2 to 6 meters above the ground. The road traffic noise monitoring device provided in this embodiment is preferably installed at a height of at least 3 meters above the ground to reduce interference or disruption to the monitoring process by members of the public.

[0038] The road traffic noise monitoring device provided in this embodiment can be installed on a readily available tubular object 100, such as a streetlight pole or utility pole, and then climbed to a certain height to perform 24-hour continuous monitoring operations. This eliminates the need for staff to participate in the entire monitoring process, significantly reducing labor costs.

[0039] In one embodiment, the crawling device 30 includes a mounting frame 31, a crawling wheel 32, and a first motor 33. The mounting frame 31 is disposed on the inner side of the frame 11 or the inner side of the plate 14. The crawling wheel 32 is rotatably mounted on the mounting frame 31. The crawling wheel 32 is covered with a rubber sleeve to increase the static friction between the crawling wheel 32 and the tubular object 100. The first motor 33 is used to drive the crawling wheel 32 to rotate. The first motor 33 is communicatively connected to the control module and operates under the control of the control module. The crawling device 30 provided in this embodiment has a simple structure, but is only suitable for installation on a tubular object 100 that matches the diameter of the circle enclosed by the four crawling devices 30. If the diameter of the tubular object 100 does not match (i.e., the diameter is too large or too small), the crawling device 30 will not work, thus having poor versatility.

[0040] In one embodiment, the crawling device 30 further includes an adjustment mechanism 34, comprising a first slot 341, a screw 342, and a handle 343. The first slot 341 is fixedly disposed on the inner side of the frame 11 or the inner side of the plate 14. A portion of the mounting bracket 31 is located within the first slot 341 and is slidably connected to the first slot 341. The screw 342 passes through the frame 11 or the plate 14 and is rotationally connected thereto. One end of the screw 342 is located within the first slot 341 and is threadedly connected to the mounting bracket 31, while the other end is located outside the frame 11 or the plate 14. The handle 343 is fixedly disposed on the other end of the screw 342. In this embodiment, the adjustment range provided by the adjustment mechanism 34 allows the crawling device 30 to be adapted for tubular objects 100 within a certain diameter range, thereby improving versatility.

[0041] In one embodiment, the mounting frame 31 includes a base plate 311 and two first connecting arms 312 disposed opposite to each other on the base plate 311. The base plate 311 is threadedly connected to the screw rod 342 and slidably connected to the first slide groove 341. The two first connecting arms 312 are arranged in parallel and include a tube 3121, a rod 3122, and a first compression spring 3123. One end of the tube 3121 is fixedly connected to the base plate 311, and one end of the rod 3122 is slidably disposed within the other end of the tube 3121. The other end of the rod 3122 is rotatably connected to the crawler wheel 32. The two rods 3122 jointly support one crawler wheel 32. The first compression spring 3123 is located within the tube 3121, with its ends respectively contacting the inner wall of the tube 3121 and the rod 3122. The first compression spring 3123 forces the rod 3122 to move away from the one end of the tube 3121. When the tubular object 100 is a streetlight pole, some poles have a larger diameter at the lower end and a smaller diameter at the upper end. If the crawling device 30 of the aforementioned embodiment is used, the static friction between the crawling wheel 32 and the pole will be reduced during climbing, resulting in a decrease in climbing ability or even inability to climb further. In this embodiment, however, because the first connecting arm 312 has a certain degree of expansion and contraction, it can adapt to changes in the pole's diameter within a certain range, thereby ensuring reliable static friction between the crawling wheel 32 and the pole.

[0042] In one embodiment, the crawling device 30 further includes an auxiliary fixing mechanism 35 for retaining the frame 10 on the tubular object 100. The auxiliary fixing mechanism 35 includes a bracket 351, an electromagnetic suction cup 352, and a second compression spring 353. The bracket 351 is shaped like a door, and its two ends are fixedly connected to the other ends of the two rods 3122. The electromagnetic suction cup 352 is slidably mounted on the bracket 351 and slides along the extension direction of the rods 3122. The two ends of the second compression spring 353 respectively abut against the bracket 351 and the electromagnetic suction cup 352. The second compression spring 353 is preferably sheathed outside the electromagnetic suction cup 352 to cause the electromagnetic suction cup 352 to move closer to the tubular body 3121. When the crawling device 30 crawls on or remains on the tubular object 100, the crawling wheel 32 contacts the tubular object 100. When the electromagnetic chuck 352 is de-energized, a certain distance is maintained between the electromagnetic chuck 352 and the tubular object 100. When the electromagnetic chuck 352 is energized, the magnetic force between the electromagnetic chuck 352 and the tubular object 100 causes the electromagnetic chuck 352 to overcome the resistance of the second compression spring 353 and move closer to the tubular object 100, ultimately attracting the electromagnetic chuck 352 and the tubular object 100. When the crawling device 30 provided in this embodiment needs to maintain a certain height, the electromagnetic chuck 352 is energized, thereby improving the fixing effect of the frame 10 on the tubular object 100 and providing auxiliary fixing.

[0043] In one embodiment, the system further includes a mounting base 40 and a retaining device 50. The mounting base 40 is fixedly mounted on the outside of the frame 11 and is provided with a slot 41 for inserting the sound level meter 20. The slot 41 preferably has a through hole for inserting a data cable. The retaining device 50 is used to retain the sound level meter 20 in the slot 41, thereby reducing the risk of the sound level meter 20 being stolen during unattended monitoring.

[0044] In one embodiment, the retaining device 50 includes a second slide groove 51, a second connecting arm 52, a limiting rod 53, and a driving device 54. The second slide groove 51 is provided on the mounting base 40. The second connecting arm 52 is provided longitudinally, and its lower end is slidably provided in the second slide groove 51. The limiting rod 53 is fixedly provided at the upper end of the second connecting arm 52. The driving device 54 is used to drive the second connecting arm 52 to slide in the second slide groove 51. When the sound level meter 20 is inserted into the slot 41, the second connecting arm 52 is driven by the driving device 54 to approach the sound level meter 20 and stop after reaching a preset position. Due to the presence of the limiting rod 53, the limiting rod 53 limits the displacement of the sound level meter 20 in the direction of leaving the slot 41. Specifically, the limiting rod 53 limits the upward movement of the sound level meter 20, thereby maintaining the sound level meter 20 in the slot 41.

[0045] In one embodiment, the other end of the frame 11 is provided with a lock body 12 capable of generating magnetic force, and the other end of the plate 14 is provided with an iron block 13 capable of attracting the lock body 12. The lock body 12 is fixedly mounted at the other end of the frame 11 and can generate magnetic force when powered on. Specifically, the lock body 12 corresponds to the lock body 12 structure of a magnetic lock in the prior art. The iron block 13 is fixedly mounted at the other end of the plate 14. When the lock body 12 is powered on to generate magnetic force, it attracts the lock body 12. The iron block 13 corresponds to the iron plate or suction plate structure of a magnetic lock in the prior art.

[0046] The driving device 54 includes a transmission rod 541, a third compression spring 542, a first rack 543, a first gear 544, a telescopic mechanism 547, and a second rack 548. The transmission rod 541 is slidably arranged on a side wall of the frame 11. Preferably, the transmission rod 541 is slidably arranged on the bottom of a side wall of the frame 11. One end of the transmission rod 541 can abut against the other end of the plate 14. Preferably, the end of the one end of the transmission rod 541 is hemispherical. The third compression spring 542 is used to make the one end of the transmission rod 541 tend to approach the other end of the plate 14. Preferably, the third compression spring 542 is sleeved on the transmission rod 541, and the two ends of the third compression spring 542 abut against the transmission rod 541 and the frame 11 respectively. The first rack 543 is fixedly arranged on the other end of the transmission rod 541, and the first rack 543 slides with the transmission rod 541. The first gear 544 is rotatably mounted on the mounting base 40 and meshes with the first rack 543. The telescopic mechanism 547 comprises a plurality of sequentially connected parallel four-bar linkages, one end of which is hinged to the mounting base 40 and the other end is hinged to the second connecting arm 52. Each parallel four-bar linkage comprises four connecting rods connected end to end, and adjacent parallel four-bar linkages are hinged to each other. A second rack 548 is slidably mounted on the mounting base 40 and one end is rotatably connected to the first gear 544. Specifically, one end of the second rack 548 can directly mesh with the first gear 544, thereby forming a direct transmission connection, or it can indirectly mesh with the first gear 544, thereby forming an indirect transmission connection, such as through a structure including a belt drive mechanism 545 and a second gear 546. More specifically, the belt drive mechanism 545 is mounted on the mounting base 40, and the first gear 544 and the second gear 546 are respectively coaxially connected to two pulleys in the belt drive mechanism 545. The second gear 546 meshes with the second rack 548. The other end of the second rack 548 is hinged to the connection parts of two adjacent parallel four-bar linkages in the telescopic mechanism 547, so that when the second rack 548 moves, the second rack 548 can drive the telescopic mechanism 547 to expand or fold, thereby driving the second connecting arm 52 to slide back and forth.The driving device 54 provided in this embodiment, when the iron block 13 on the plate body 14 and the lock body 12 on the frame body 11 are attracted together, the plate body 14 and the frame body 11 form a closed frame 10, and in the process of closing the opening of the frame body 11, the plate body 14 pushes the transmission rod 541 to move, and the transmission rod 541 finally drives the second connecting arm 52 to move through the first rack 543, the first gear 544, the telescopic mechanism 547 and the second rack 548, wherein the telescopic mechanism 547 has a stroke amplification effect, so that the smaller displacement when the plate body 14 closes the frame body 11 can be used to push the second connecting arm 52 to achieve a larger displacement. The overall structure is relatively simple and is a purely mechanical structure. No additional electric drive structure is required to realize the back and forth movement of the second connecting arm 52. The drive of the second connecting arm 52 is realized by the fixed structure of the plate body 14 and the frame body 11 itself, which is more reliable.

[0047] In one embodiment, the second connecting arm 52 includes a first arm 521 at the lower end and a second arm 522 at the upper end. The lower end of the first arm 521 slides in the second slide slot 51, and the lower end of the second arm 522 is hinged to the upper end of the first arm 521. The second arm 522 can swing in one direction from a horizontal position to a vertical position. When the second arm 522 is in the vertical position, the second arm 522 cannot swing further in the direction and can only swing in the opposite direction. Therefore, when the second arm 522 is restricted from swinging in the opposite direction (i.e., blocked by the sound level meter 20 placed in the slot 41), the second arm 522 can remain in the vertical position. When the restriction is removed, the second arm 522 can swing to the horizontal position, thereby allowing the second connecting arm 52 to be appropriately folded.

[0048] In one embodiment, a road traffic noise monitoring system is provided, comprising the aforementioned road traffic noise monitoring device having the telescopic mechanism 547, a camera 60, a second motor 61, a processing module, an alarm module, a voice module, and a mobile terminal. The camera 60 is mounted on an outer wall of the frame 11 and is rotatable within a vertical plane. Preferably, one camera 60 is mounted on each of two opposing side walls of the frame 11 to provide a wider camera range.

[0049] The camera 60 is used to capture image information of a target person within a target area, wherein the target area refers to an area within a certain range from the frame 10 within the camera range, and the target person refers to any person entering the target area. The second motor 61 is used to drive the camera 60 to rotate the camera 60.

[0050] The processing module is used to receive image data captured by the camera 60 and analyze the received image data. The analysis includes the target person's behavior and occupational information. The target person's behavior includes the target person's hand gestures. By analyzing the target person's hand gestures, it is determined whether someone approaches and takes the road traffic noise monitoring device. The target person's occupational information is determined by the target person's clothing. By judging whether the target person is a staff member of a specific industry, such as urban management or traffic police, based on the clothing, the target person's occupation can be divided into public officials and ordinary people. If the target person is not a staff member of a specific industry, then when the target person approaches the road traffic noise monitoring device, there is a possibility that the road traffic noise monitoring device may be damaged, interfered with, or stolen. When analyzing the target person's behavior and occupational information, the processing module preferably analyzes the target person's behavior first. When the target person shows a tendency to approach, take, or touch the road traffic noise monitoring device, the target person's occupation analysis is then performed, thereby reducing the data processing capacity of the processing module.

[0051] The alarm module receives information from the processing module and issues an alarm based on pre-set rules. If a target person approaches, picks up, or touches the road traffic noise monitoring device, a different alarm message is sent to the mobile terminal based on the identified target person's occupation. Staff then decide whether to respond on-site based on the alarm message.

[0052] The voice module is used to receive information from the processing module and issue voice prompts according to preset rules. When the target person has a tendency to approach and pick up or touch the road traffic noise monitoring device, based on the identified occupational information of the target person, if the target person is a public official, a prompt voice such as "This device is used for road traffic noise monitoring and has been registered. Please do not touch it" will be issued. If the target person is an ordinary person, a reminder voice such as "This device is used for road traffic noise monitoring. Please do not touch it. If the device is damaged, the consequences will be at your own risk" will be issued. It should be noted that during the period when the voice module issues the prompt / reminder voice, the sound waves generated will also be detected by the sound level meter 20. Later, when performing data processing, the data of the corresponding time node can be filtered.

[0053] The mobile terminal is in communication with the control module and can be a mobile device such as a mobile phone or a tablet, or a dedicated handheld mobile device. The mobile terminal is used to send control information and receive the alarm information. After the frame 10 is installed, the crawling device 30 is controlled to work through the mobile terminal, and the frame 10 is kept at a suitable height. When the mobile terminal receives the alarm information, if the target person is an ordinary person, the crawling device 30 can also be remotely controlled through the mobile terminal to raise the frame 10 to avoid the normal contact range of the ordinary people. Of course, after the processing module completes the analysis, the processing module will also send the processed information to the control module, and the control module controls the crawling device 30 to work, so that there is no need to remotely control the crawling device 30.

[0054] The road traffic noise monitoring system provided in this embodiment can automatically identify the behavior and occupation of people approaching the road traffic noise monitoring device while achieving unmanned monitoring, and thus implement different strategies based on different behaviors and occupations to reduce the risk of interference, damage or theft.

[0055] In one embodiment, a method for using a road traffic noise monitoring system is provided, comprising the following steps:

[0056] S1 , inserting the sound level meter 20 into the slot 41 .

[0057] S2, sleeve the frame 10 outside the tubular object 100.

[0058] S3 , the sound level meter 20 is held in the slot 41 by the holding device 50 . When the frame 10 is closed, the holding device 50 holds the sound level meter 20 in the slot 41 .

[0059] S4, the crawling wheels 32 are brought into contact with the outer surface of the tubular object 100 through the adjusting mechanism 34. According to the diameter of the tubular object 100, the position of each crawling wheel 32 is adjusted by the adjusting mechanism 34 to ensure that all four crawling wheels 32 are in contact with the tubular object 100.

[0060] S5, controlling the crawling device 30 to work through the control module, and keeping the frame 10 at a certain height.

[0061] S6, adjusting the shooting angle of the camera 60 through the control module according to the height maintained by the crawling device 30; when the camera 60 and the frame 10 are at different heights, the shooting angle thereof will also be adaptively adjusted accordingly.

[0062] S7, according to the processing result of the processing module, a control instruction is sent to the crawling device 30 and the alarm device through the control module to adjust the height of the frame 10 and send an alarm message to the mobile device.

[0063] It should be noted that the processing module, alarm module, voice module and control module in the embodiment of the present invention are all integrated on a control circuit board (not shown in the drawings), and the control circuit board is mounted on the mounting base 40.

[0064] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A road traffic noise monitoring device, characterized in that: include: The frame (10) comprises a frame body (11) with three closed sides and one open side, and a plate body (14) with one end hinged to one end of the frame body (11) and the other end detachably connected to the other end of the frame body (11); a sound level meter (20) detachably arranged on the outside of the frame (11); A crawling device (30) is provided on each of the three side walls of the frame (11) and the plate (14), and a plurality of the crawling devices (30) act together on a tubular object (100) extending in the longitudinal direction, so that the frame (10) can be raised and lowered on the tubular object (100); A control module, used for controlling the operation of the crawling device (30); as well as A battery module for supplying power to the crawling device (30) and the control module; The crawling device (30) comprises: A mounting frame (31) is arranged on the inner side of the frame (11) or the inner side of the plate (14); a crawling wheel (32) rotatably mounted on the mounting frame (31); and A first motor (33) is used to drive the crawling wheel (32) to rotate; The crawling device (30) further includes an adjustment mechanism (34), wherein the adjustment mechanism (34) includes: A first sliding groove (341) is fixedly arranged on the inner side of the frame (11) or the inner side of the plate (14) and is slidably connected to the mounting frame (31); a screw (342) rotatably connected to the frame (11) or the plate (14), one end of which is located in the first slide groove (341) and is threadedly connected to the mounting bracket (31), and the other end of which is located outside the frame (11) or the plate (14); and a handle (343) fixedly disposed on the other end of the screw rod (342); The mounting frame (31) includes a base plate (311) and two first connecting arms (312) arranged opposite to each other on the base plate (311). The base plate (311) is threadedly connected to the screw rod (342) and slidably connected to the first sliding groove (341). The first connecting arms (312) include: A tube body (3121), one end of which is fixedly connected to the base plate (311); A rod body (3122), one end of which is slidably disposed in the tube body (3121), and the other end of which is rotationally connected to the crawling wheel (32); and A first compression spring (3123) is disposed in the tube body (3121), with two ends respectively abutting against the tube body (3121) and the rod body (3122); The crawling device (30) further comprises an auxiliary fixing mechanism (35) for holding the frame (10) on the tubular object (100), wherein the auxiliary fixing mechanism (35) comprises: A bracket (351) is fixedly connected to the other end of the rod (3122); an electromagnetic chuck (352) slidably disposed on the bracket (351); and a second compression spring (353), the two ends of which are respectively in contact with the bracket (351) and the electromagnetic suction cup (352), and are used to make the electromagnetic suction cup (352) tend to approach the tube body (3121); Also includes: A mounting seat (40) is fixedly arranged on the outside of the frame (11) and is provided with a slot (41) for inserting the sound level meter (20); and A retaining device (50) for retaining the sound level meter (20) in the slot (41); The holding device (50) comprises: A second sliding groove (51) is provided on the mounting seat (40); A second connecting arm (52) is arranged in the longitudinal direction, and the lower end thereof is slidably arranged in the second sliding groove (51); a limiting rod (53) fixedly disposed on the upper end of the second connecting arm (52); and a driving device (54) for driving the second connecting arm (52) to slide in the second sliding groove (51); The other end of the frame (11) is provided with a lock body (12) capable of generating magnetic force, the other end of the plate (14) is provided with an iron block (13) capable of attracting the lock body (12), and the driving device (54) comprises: A transmission rod (541) is slidably disposed on a side wall of the frame (11), one end of which can abut against the other end of the plate (14); a third compression spring (542) for causing one end of the transmission rod (541) to tend to approach the other end of the plate body (14); A first rack (543) is fixedly arranged on the other end of the transmission rod (541); a first gear (544) rotatably mounted on the mounting seat (40) and meshing with the first rack (543); a telescopic mechanism (547) having a plurality of parallel four-link mechanisms connected in sequence, one end of the telescopic mechanism (547) being hinged to the mounting seat (40) and the other end being hinged to the second connecting arm (52); and The second rack (548) is slidably arranged on the mounting seat (40), one end of which is transmission-connected to the first gear (544), and the other end of which is hinged to the connection parts of two adjacent parallel four-bar linkages in the telescopic mechanism (547).

2. A road traffic noise monitoring system, characterized in that: The road traffic noise monitoring device according to claim 1 further comprises: A camera (60) is arranged on the outer wall of the frame (11) and is rotatable in a vertical plane, and is used to obtain image information of a target person in a target area; a second motor (61), configured to drive the camera (60) to rotate; a processing module, configured to receive image data and analyze the image data based on the target person's behavior and occupation information; An alarm module is used to receive information from the processing module and issue an alarm message according to preset rules; a voice module, configured to receive information from the processing module and issue voice prompts; and The mobile terminal is in communication with the control module and is used to send control information and receive the alarm information.

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