Road traffic data acquisition device based on BIM

Abstract

The utility model belongs to the technical field of building information models, and particularly relates to a BIM (Building Information Modeling)-based road traffic data acquisition device which comprises a base and a camera, a camera base is fixedly arranged at the bottom of the camera, a rotating ball sleeve base is fixedly connected to the inner bottom wall of the camera base, a rotating ball is rotatably connected to the rotating ball sleeve base, and the rotating ball is rotatably connected to the camera base. A third connecting rod is fixedly connected to the rotating ball body, a second rotating motor is fixedly connected to the end, away from the camera base, of the third connecting rod, the output end of the second rotating motor is rotationally connected with an anti-inclination rotating disc, and the other end of the third connecting rod is fixedly connected with the camera; according to the device, through cooperation of the rotating ball sleeve base, the third connecting rod and the anti-inclination rotating disc, the anti-inclination rotating disc obtains a large rotational inertia, a camera connected with the anti-inclination rotating disc is not prone to deviation under the action of wind power, shaking of the camera is reduced, shaking of the camera can be reduced, and the stability of the camera is improved. And the imaging of the camera is clearer.

Description

Technical Field

[0001] This utility model belongs to the field of building information modeling technology, and in particular relates to a road traffic data acquisition device based on BIM. Background Technology

[0002] Currently, BIM technology has been widely applied in my country's construction and transportation industries, especially in the civil construction sector, where BIM standards, basic software, and management platforms are relatively mature. Urban rail transit projects, being linear projects, not only involve long lines, multiple regions, and numerous professional disciplines, making coordination difficult, but also face complex surrounding environments and high safety requirements. Therefore, integrated information computing, operation, and management are urgently needed in practical applications. Existing BIM traffic data is typically collected through cameras, but these cameras often require repair or replacement due to aging or damage.

[0003] For example, patent application CN220167647U discloses a BIM-based road traffic data acquisition device, including a support plate with a retaining ring fixedly connected to its top. A fixing block is snapped into the inner wall of the retaining ring, and a main support rod is threadedly connected to the top of the fixing block. An installation groove is formed on the outer surface of the main support rod, and a rotatable secondary support rod is connected to the inner wall of the installation groove via a rotating shaft. A support base is fixedly connected to the top of the secondary support rod. This BIM-based road traffic data acquisition device, through the coordinated arrangement of the installation groove and the secondary support rod, allows the secondary support rod to rotate directly around the rotating shaft, making it easier to rotate the guide cylinder downwards, thereby reducing the height of the guide cylinder and facilitating the installation and maintenance of the camera. Rotation again resets the guide cylinder, thus improving the overall practicality of the device.

[0004] However, the above has the following shortcomings:

[0005] 1. Although the above-mentioned patent can reduce the height of the guide tube by using the combination of the mounting groove and the secondary support rod, thus facilitating the installation and maintenance of the camera by the staff, the camera is prone to shaking in strong winds, resulting in blurry images captured by the camera and affecting the collection of road traffic data.

[0006] 2. During typhoon weather, strong winds may cause the camera to shake violently. Prolonged violent shaking may cause the camera to fall off its installation position and damage it. Utility Model Content

[0007] To overcome the shortcomings of existing technologies, this utility model provides a BIM-based road traffic data acquisition device. By setting a rotating ball-shaped base, a third connecting rod, and an anti-tilt turntable, the camera connected to the anti-tilt turntable is less prone to displacement under wind force, thus reducing camera sway and resulting in clearer camera images. Through the cooperation of the lifting sleeve gear, transmission gear, anti-tilt turntable, air pressure detection ring, air pressure sensor, and first rotating motor, the positioning slider can be controlled to descend. Thus, when the wind force is too strong and the anti-tilt turntable can no longer control the stability of the camera, the camera is driven to descend, lowering the center of gravity of the device, reducing camera sway, preventing damage, and enhancing the stability of the device.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a BIM-based road traffic data acquisition device, comprising a base and a camera. The bottom of the camera is fixedly provided with a camera base, and a rotating ball sleeve base is fixedly connected to the inner bottom wall of the camera base. A rotating ball is rotatably connected to the rotating ball sleeve base, and a third connecting rod is fixedly connected to the rotating ball. A second rotating motor is fixedly connected to one end of the third connecting rod away from the camera base, and an anti-tilt turntable is rotatably connected to the output end of the second rotating motor. The other end of the third connecting rod is fixedly connected to the camera.

[0009] Furthermore, a pressure detection ring is fixedly connected to the top of the camera base. The pressure detection ring is located below the camera. A flexible tube is connected to the bottom of the pressure detection ring. A pressure sensor is fixedly connected to the end of the flexible tube away from the pressure detection ring. The pressure sensor is fixed to the inner bottom wall of the camera base.

[0010] Furthermore, a supporting threaded rod is fixedly connected to the base, and a positioning slider is slidably connected to the end of the supporting threaded rod away from the base. A first connecting rod is fixedly connected to the side wall of the positioning slider, and a positioning box is fixedly connected to the end of the first connecting rod away from the positioning slider. A second connecting rod is fixedly connected to the end of the positioning box away from the first connecting rod, and a fixing rod sleeve is fixedly connected to the end of the second connecting rod away from the positioning box. A camera base is fixedly connected to the side wall of the fixing rod sleeve.

[0011] Furthermore, a motor mounting bracket is fixedly connected inside the positioning box, and a first rotating motor is fixedly connected to the motor mounting bracket. A transmission gear is rotatably connected to the output end of the first rotating motor, and the first rotating motor is electrically connected to the air pressure sensor through a wire.

[0012] Furthermore, a limiting plate is fixedly connected to one end of the supporting threaded screw near the base, and a lifting sleeve gear is threadedly connected to the supporting threaded screw. The lifting sleeve gear is rotatably connected to the bottom of the positioning slider and meshes with the transmission gear.

[0013] Furthermore, the inner wall of the rotating ball sleeve base is provided with several limiting grooves, and several limiting protrusions are fixed on the rotating ball, with the limiting protrusions slidably connected in the limiting grooves.

[0014] In summary, compared with existing technologies, the beneficial effects of this solution are as follows:

[0015] (1) By rotating the ball sleeve base, the third connecting rod and the anti-tilt turntable, the anti-tilt turntable can obtain a large moment of rotational inertia, so that the camera connected to the anti-tilt turntable is not easy to shift when subjected to wind force, thereby reducing the shaking of the camera and making the camera image clearer.

[0016] (2) By cooperating with the lifting sleeve gear, transmission gear, anti-tilt turntable, air pressure detection ring, air pressure sensor and first rotating motor, the positioning slider can be controlled to descend. When the wind force is too strong and the anti-tilt turntable can no longer control the stability of the camera, the camera will be driven to descend, so that the center of gravity of the device will be lowered, the camera will be reduced, the camera will be prevented from shaking, and the device will be protected from damage. This will enhance the stability of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 This is a side view of the present invention.

[0019] Figure 3 for Figure 2 A three-dimensional sectional view at point AA.

[0020] Figure 4 for Figure 3 A magnified view of a section at point B.

[0021] Figure 5 This is an exploded view of the present invention.

[0022] Figure 6 for Figure 5 A magnified view of a section at point C.

[0023] Explanation of reference numerals in the attached drawings: Base 10; Camera 11; Support threaded rod 12; Limiting plate 13; Lifting sleeve gear 14; Positioning slider 15; First connecting rod 16; Positioning box 17; Transmission gear 18; Second connecting rod 19; Fixing rod sleeve 20; Camera base 21; Motor mounting bracket 22; First rotating motor 23; Rotating ball sleeve base 24; Third connecting rod 25; Anti-tilt turntable 26; Air pressure detection ring 27; Hose 28; Air pressure sensor 29; Wire 30; Second rotating motor 31; Limiting groove 32; Rotating ball 33; Limiting protrusion 34. Detailed Implementation

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] refer to Figure 1 , Figure 4 , Figure 5 , Figure 6 A BIM-based road traffic data acquisition device includes a base 10 and a camera 11. A supporting threaded rod 12 is fixedly connected to the base 10, and a positioning slider 15 is slidably connected to the supporting threaded rod 12. A first connecting rod 16 is fixedly connected to one side of the positioning slider 15. A positioning box 17 is fixedly connected to the side of the first connecting rod 16 away from the positioning slider 15. A second connecting rod 19 is fixedly connected to the end of the positioning box 17 away from the first connecting rod 16. A fixing rod sleeve 20 is fixedly connected to the end of the second connecting rod 19 away from the positioning box 17. A camera base 21 is fixedly connected to the side wall of the fixing rod sleeve 20.

[0026] like Figure 1 , Figure 4 , Figure 5 , Figure 6 As shown, a rotating ball sleeve base 24 is fixedly connected to the inner bottom wall of the camera base 21. A rotating ball 33 is rotatably connected to the rotating ball sleeve base 24. A third connecting rod 25 is fixedly connected to the rotating ball 33. A second rotating motor 31 is fixedly connected to one end of the third connecting rod 25 away from the camera base 21. An anti-tilt turntable 26 is rotatably connected to the output end of the second rotating motor 31. The other end of the third connecting rod 25 is fixedly connected to the camera 11. Several limiting grooves 32 are provided on the inner side wall of the rotating ball sleeve base 24. Several limiting protrusions 34 are fixedly provided on the rotating ball 33. The limiting protrusions 34 are slidably connected in the limiting grooves 32.

[0027] By coordinating the rotation of the ball sleeve base 24, the third connecting rod 25, the anti-tilt turntable 26, and the rotating ball 33, the anti-tilt turntable 26 obtains a large moment of inertia, making it less likely for the camera 11, which is connected to the third connecting rod 25, to shift when subjected to wind force, thereby reducing the shaking of the camera 11 and enhancing the stability of the device and the quality of the image.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, a pressure detection ring 27 is fixedly connected to the top of the camera base 21. The pressure detection ring 27 is located below the bottom disc of the camera 11. A hose 28 is connected to the lower part of the pressure detection ring 27. A pressure sensor 29 is fixedly connected to the end of the hose 28 away from the pressure detection ring 27. The pressure sensor 29 is fixed on the inner bottom wall of the camera base 21. A motor mounting bracket 22 is fixedly connected inside the positioning box 17. A first rotating motor 23 is fixedly connected to the motor mounting bracket 22. A transmission gear 18 is rotatably connected to the output end of the first rotating motor 23. The first rotating motor 23 and the pressure sensor 29 are electrically connected together through a wire 30.

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, a lifting sleeve gear 14 is threadedly connected to the supporting threaded screw 12. The transmission gear 18 meshes with the lifting sleeve gear 14. The lifting sleeve gear 14 is rotatably connected to the bottom of the positioning slider 15. A limit plate 13 is fixedly connected to one end of the supporting threaded screw 12 near the base 10. The limit plate 13 can limit the descent height of the lifting sleeve gear 14.

[0030] Through the cooperation of the transmission gear 18, anti-tilt turntable 26, air pressure detection ring 27, air pressure sensor 29 and the first rotating motor 23, the lifting sleeve gear 14 can be controlled to rotate, and the positioning slider 15 can be driven to descend. Thus, when the wind force is too strong and the anti-tilt turntable 26 can no longer control the stability of the camera 11, the camera 11 will be driven to descend, so that the center of gravity of the device is lowered, reducing the swaying caused by the wind and further improving the stability of the device.

[0031] In this embodiment, initially, the device is connected to the power supply, and the camera 11 and the second rotating motor 31 start working. The anti-tilt turntable 26, which is rotatably connected to the output end of the second rotating motor 31, starts to rotate at a certain angular velocity. During the rotation, the anti-tilt turntable 26 generates a certain angular momentum. When the camera 11 is affected by the wind and shakes, the third connecting rod 25 connected to the camera 11 will tilt accordingly. Since the anti-tilt turntable 26 needs to maintain its angular momentum conservation, the rotation of the anti-tilt turntable 26 will counteract the shaking of the camera 11 caused by the wind, so that the third connecting rod 25 always maintains rotation around the vertical axis, thereby enhancing the stability of the camera 11.

[0032] As the wind force increases, the swaying amplitude of the camera 11 caused by the wind force increases, and the tilting torque on the anti-tilt turntable 26 increases accordingly. When the tilting torque caused by the wind force reaches a certain value, the anti-tilt turntable 26 can no longer maintain its own angular momentum conservation, and the third connecting rod 25 deviates from the vertical rotation axis, causing the bottom disc of the camera 11 to tilt. After tilting at a certain angle, the bottom disc of the camera 11 comes into contact with the air pressure detection ring 27 and squeezes the air pressure detection ring 27. After being squeezed, the air pressure detection ring 27 transmits the gas pressure to the sensing component of the air pressure sensor 29 through the hose 28.

[0033] After receiving a signal indicating a change in gas pressure, the air pressure sensor 29 sends a control signal through the control module and transmits it to the first rotating motor 23 via the wire 30 to start the first rotating motor 23. The transmission gear 18 starts to rotate under the drive of the first rotating motor 23, and drives the lifting sleeve gear 14, which meshes with it, to rotate together. The lifting sleeve gear 14 rotates on the supporting threaded screw 12 and begins to descend, driving the positioning slider 15 to descend as well. The second connecting rod 19, which is fixedly connected to the positioning slider 15, moves together and drives the camera 11 on the second connecting rod 19 to descend. When the camera 11 descends to a certain height, the center of gravity of the device decreases, and the swaying caused by the wind decreases. After a certain period of time, the third connecting rod 25 returns to a vertical state and drives the camera 11 to return to a vertical state. The camera 11 no longer squeezes the air pressure detection ring 27. The air pressure sensor 29 then sends a stop signal to the first rotating motor 23 and stops the transmission gear 18 from rotating.

[0034] After the strong wind stops, the operator turns on the first rotating motor 23 and makes the transmission gear 18 rotate in the opposite direction, which drives the lifting sleeve gear 14 to rise. The lifting sleeve gear 14 drives the positioning slider 15 on it to rise, and the second connecting rod 19, which is fixedly connected to the positioning slider 15, rises together and drives the camera 11 to rise. When the camera 11 rises to the initial working height, the operator turns off the first rotating motor 23 and completes the reset of the camera 11.

[0035] The aforementioned camera 11, first rotating motor 23, air pressure sensor 29, and second rotating motor 31 are mature existing technologies and will not be described in detail here.

[0036] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0038] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A BIM-based road traffic data acquisition device, comprising a base (10) and a camera (11), characterized in that, The bottom of the camera (11) is fixedly provided with a camera base (21). A rotating ball sleeve base (24) is fixedly connected to the inner bottom wall of the camera base (21). A rotating ball (33) is rotatably connected to the rotating ball sleeve base (24). A third connecting rod (25) is fixedly connected to the rotating ball (33). A second rotating motor (31) is fixedly connected to one end of the third connecting rod (25) away from the camera base (21). An anti-tilt turntable (26) is rotatably connected to the output end of the second rotating motor (31). The other end of the third connecting rod (25) is fixedly connected to the camera (11).

2. The BIM-based road traffic data acquisition device according to claim 1, characterized in that, A pressure detection ring (27) is fixedly connected to the top of the camera base (21). The pressure detection ring (27) is located below the camera (11). A hose (28) is connected to the bottom of the pressure detection ring (27). A pressure sensor (29) is fixedly connected to the end of the hose (28) away from the pressure detection ring (27). The pressure sensor (29) is fixed on the inner bottom wall of the camera base (21).

3. The BIM-based road traffic data acquisition device according to claim 2, characterized in that, A supporting threaded rod (12) is fixedly connected to the base (10). A positioning slider (15) is slidably connected to the end of the supporting threaded rod (12) away from the base (10). A first connecting rod (16) is fixedly connected to the side wall of the positioning slider (15). A positioning box (17) is fixedly connected to the end of the first connecting rod (16) away from the positioning slider (15). A second connecting rod (19) is fixedly connected to the end of the positioning box (17) away from the first connecting rod (16). A fixing rod sleeve (20) is fixedly connected to the end of the second connecting rod (19) away from the positioning box (17). A camera base (21) is fixedly connected to the side wall of the fixing rod sleeve (20).

4. The BIM-based road traffic data acquisition device according to claim 3, characterized in that, The positioning box (17) is fixedly connected to a motor mounting bracket (22), and a first rotating motor (23) is fixedly connected to the motor mounting bracket (22). The output end of the first rotating motor (23) is rotatably connected to a transmission gear (18), and the first rotating motor (23) is electrically connected to the air pressure sensor (29) through a wire (30).

5. A BIM-based road traffic data acquisition device according to claim 4, characterized in that, The end of the supporting threaded screw (12) near the base (10) is fixedly connected to a limiting plate (13). A lifting sleeve gear (14) is threaded onto the supporting threaded screw (12). The lifting sleeve gear (14) is rotatably connected to the bottom of the positioning slider (15) and meshes with the transmission gear (18).

6. A BIM-based road traffic data acquisition device according to claim 5, characterized in that, The inner wall of the rotating ball sleeve base (24) is provided with several limiting grooves (32), and several limiting protrusions (34) are fixed on the rotating ball (33). Several limiting protrusions (34) are slidably connected in the limiting grooves (32).

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