Safety belt wearing recognition device based on target detection

Abstract

The utility model relates to the technical field of construction site monitoring equipment, in particular to a safety belt wearing recognition device based on target detection, which comprises a vertical plate, a turntable mounted at the bottom of the vertical plate, a base mounted at the bottom of the turntable, a camera arranged on one side of the vertical plate, and an angle adjusting part for adjusting the inclination angle of the camera. The camera is used for shooting operation areas of different heights, and a protective cover is installed outside the camera and the angle adjusting component and used for protecting and covering when the camera is not used. According to the safety belt wearing recognition device based on target detection, the rotating disc installed at the bottom of the vertical plate is matched with the rotating motor in the base, multi-angle rotation can be achieved, in combination with the damper between the rotating disc and the vertical plate, the shooting direction can be stably kept, it is ensured that the camera can cover an operation area in all directions, and monitoring dead angles are avoided; compared with a traditional fixed-angle detection device, the detection range is greatly expanded.

Description

Technical Field

[0001] This utility model relates to the field of construction site monitoring equipment technology, and more specifically, to a safety belt wearing recognition device based on target detection. Background Technology

[0002] Against the backdrop of rapid socio-economic development and large-scale infrastructure construction, high-altitude operations are becoming increasingly common in factories, construction sites, and other similar locations. Safety belts are a crucial guarantee for the life safety of workers at height, and their proper wearing is an important prerequisite for ensuring construction safety and a core element of standardized project management. However, current supervision of safety belt wearing at height remains primarily based on manual inspections. This method is not only inefficient but also highly susceptible to errors due to human factors, making it difficult to achieve real-time and accurate monitoring of workers' safety belt wearing status.

[0003] Data shows that falls account for approximately 17% of workplace accidents, with the majority stemming from workers not wearing safety belts correctly or safety belts accidentally dislodging during use. Traditional manual monitoring methods cannot promptly detect and correct these safety hazards, leaving workers at heights constantly facing life-threatening situations. Therefore, developing an intelligent device capable of quickly and accurately identifying safety belt wearing status has become an urgent need to improve safety management in high-altitude operations and reduce the accident rate.

[0004] Existing seatbelt wearing detection technologies, such as the video-based high-altitude seatbelt detection device disclosed in patent 202220025398.4, achieve real-time detection of high-altitude seatbelts by installing a display on a detection platform and electrically connecting it to an internal processor, in conjunction with a detection terminal and a detection camera. Simultaneously, this device is equipped with a battery box and rechargeable battery, eliminating the limitation of external power cords and making it easy to carry; the inclusion of an alarm and warning lights also helps to promptly remind users to perform safety checks.

[0005] However, this device still has limitations. First, the design of the detection platform and restraint straps makes the device relatively fixed, making it difficult to flexibly adjust the detection angle and orientation, and thus unable to cover complex and ever-changing high-altitude work areas. Second, it lacks an effective protective structure. In outdoor high-altitude work environments, facing harsh conditions such as wind, rain, and dust, the precision components inside the device, such as the detection camera, are easily damaged, affecting the accuracy of detection and the lifespan of the equipment. Third, the overall structure of the device focuses on fixed-point detection, and it cannot achieve all-round, blind-spot-free safety belt wearing recognition in scenarios with a wide range of worker movement and large differences in working height. Therefore, developing a target detection-based safety belt wearing recognition device with multi-angle adjustment capabilities, strong protective performance, and applicability to various high-altitude work scenarios has significant practical significance and application value. Utility Model Content

[0006] The purpose of this invention is to provide a safety belt wearing recognition device based on target detection, so as to solve the problem mentioned in the background art that the design of the detection platform and restraint belt makes the device relatively fixed, making it difficult to flexibly adjust the detection angle and orientation, and making it difficult to cover complex and ever-changing high-altitude work areas.

[0007] To achieve the above objectives, this utility model provides a safety belt wearing recognition device based on target detection, including a stand, a turntable installed at the bottom of the stand, a base installed at the bottom of the turntable, a camera installed on one side of the stand, the camera being tilted at an angle by an angle adjustment component to capture images of work areas at different heights, and a protective cover installed on the outside of the camera and the angle adjustment component for protective covering when not in use.

[0008] This setup features a stand that supports the camera, a turntable that allows for horizontal rotation, a base that provides stable support, an angle adjustment mechanism to adjust the camera's tilt angle, and a protective cover to safeguard the equipment.

[0009] Preferably, a rotary motor is installed inside the base, which drives the turntable to rotate.

[0010] This feature uses a rotating motor inside the base to drive the turntable, based on gear transmission or direct drive principles.

[0011] Preferably, the angle adjustment component includes an angle adjustment plate, which is inclined, with its upper end hinged to the vertical plate and its lower end rotated by a drive motor.

[0012] This feature features an angle adjustment plate with a hinged structure forming a lever system, which drives a motor to change the tilt angle through torque.

[0013] Preferably, the drive motor is mounted on the side of the upright plate, and the top output shaft of the drive motor is connected to the lower end of the angle adjustment plate via a connecting rod. One end of the connecting rod is hinged to the output shaft of the drive motor, and the other end is hinged to the lower end of the angle adjustment plate.

[0014] This linkage mechanism converts the circular motion of the motor into the flipping motion of the angle adjustment plate, which conforms to the principle of a planar four-bar linkage.

[0015] Preferably, the protective cover includes a lower half shell and an upper half shell. The lower half shell is fixed to the outside of the upright plate, and the upper part of the lower half shell is hinged to the upper half shell through a hinge. The upper half shell can be flipped upward to cover the camera, and the upper half shell is locked to the upright plate by locking bolts.

[0016] This protective cover features a hinged opening and closing structure, with a rigid connection formed by locking bolts.

[0017] Preferably, the outer wall of the upper shell is fitted with a handle for easy manual opening and closing.

[0018] This setting makes it easy to manually open the upper shell.

[0019] Preferably, a damper is installed between the turntable and the upright plate. The damper is used to adjust the resistance when the turntable rotates, so that the turntable can remain stable after rotating to a specified angle, preventing the shooting direction from changing due to slight shaking caused by external forces.

[0020] This damper configuration consumes energy through viscous or frictional resistance, increasing the system's damping ratio.

[0021] Preferably, the bottom of the lower shell is provided with a drainage hole that is connected to the inside of the protective cover, and a filter screen is installed at the drainage hole to drain the water inside the protective cover in a timely manner, preventing water from accumulating inside the protective cover and causing damage to the camera and angle adjustment components.

[0022] This feature utilizes gravity to drain water through the drainage holes, while the filter screen intercepts debris based on the principle of sieving.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] In this target detection-based safety belt wearing recognition device, the turntable installed at the bottom of the upright plate, together with the rotating motor in the base, can achieve multi-angle rotation. Combined with the damper between the turntable and the upright plate, it can stably maintain the shooting direction, ensuring that the camera can cover the work area in all directions and avoid monitoring blind spots. Compared with traditional fixed-angle detection devices, it greatly improves the detection range.

[0025] In the angle adjustment component, the angle adjustment plate is driven by a drive motor to rotate, which can flexibly adjust the tilt angle of the camera to meet the shooting needs of different working areas. Whether it is a worker at a high altitude or a worker at a lower position, the safety belt wearing status can be clearly captured, making up for the shortcomings of existing technology in the adaptability of detection height.

[0026] The protective cover features a hinged design between the lower and upper shells. When not in use, the upper shell can cover the camera and angle adjustment components, which are then secured with locking bolts, effectively preventing the equipment from being corroded by dust and rainwater. The drainage holes and filter screen at the bottom of the lower shell can drain accumulated water in a timely manner, ensuring the normal operation of the internal equipment and extending the service life of the device.

[0027] The handle on the upper shell allows for easy manual opening and closing, improving the ease of operation. Through this structural design, the device can accurately identify the safety belt wearing status of workers in real time, solving the problem of existing technologies' difficulty in accurately judging proper wearing. This provides reliable protection for high-altitude work safety management, effectively reducing the accident rate caused by improper safety belt wearing and promoting efficient and safe construction. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the angle adjustment component in this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the protective cover in this utility model;

[0031] The meanings of the labels in the diagram are as follows:

[0032] 1. Upright plate; 2. Turntable; 3. Base; 4. Camera; 5. Angle adjustment component; 51. Angle adjustment plate; 52. Drive motor; 53. Connecting rod; 6. Protective cover; 61. Lower shell; 62. Upper shell; 63. Handle; 64. Locking bolt; 65. Hinge. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] This utility model provides a seatbelt wearing recognition device based on target detection, such as Figure 1 As shown, the system includes a vertical plate 1, a turntable 2 mounted on the bottom of the vertical plate 1, a base 3 mounted on the bottom of the turntable 2, a camera 4 mounted on one side of the vertical plate 1, the camera 4 being tilted at an angle by an angle adjustment component 5 to capture images of the work area at different heights, and a protective cover 6 mounted on the outside of the camera 4 and the angle adjustment component 5 for protective covering when not in use.

[0035] The upright plate (1) serves as the main supporting structure, with a turntable (2) mounted at its bottom that can rotate around its central axis. The base (3) at the bottom of the turntable (2) is firmly placed on the ground, providing stable support. A camera (4) is installed on one side of the upright plate (1), and its tilt angle can be changed through an angle adjustment component (5). The angle adjustment component (5) uses the mechanical transmission principle to change the shooting angle of the camera (4), which is used to cover the working area at different heights. The protective cover (6) outside the camera (4) and the angle adjustment component (5) forms a protective barrier by physically covering the equipment when it is not in use. A monitoring system that can flexibly adjust the shooting angle and orientation is constructed. The turntable (2) and the angle adjustment component (5) work together to enable the device to cover the working scene in all directions, while the protective cover (6) effectively prevents the equipment from being damaged by external environmental factors and extends the overall service life of the equipment.

[0036] In this embodiment, as Figure 1 As shown, a rotary motor is installed inside the base 3, which drives the turntable 2 to rotate.

[0037] The rotary motor installed inside the base (3) is connected to the turntable (2) via the motor shaft. The rotational driving torque of the motor drives the turntable (2) to rotate around the vertical axis, thereby enabling the horizontal rotation of the upright plate (1) and the camera (4) mounted on it. The rotary motor drives the turntable (2) to rotate, allowing the camera (4) to rotate 360° horizontally, greatly expanding the monitoring coverage. Furthermore, by precisely controlling the speed and angle of rotation of the motor, the work area to be filmed can be accurately located.

[0038] Specifically, such as Figure 2 As shown, the angle adjustment component 5 includes an angle adjustment plate 51, which is inclined. The upper end is hinged to the vertical plate 1, and the lower end is rotated by the drive motor 52.

[0039] The angle adjustment plate (51) in the angle adjustment component (5) is tilted. Its upper end is hinged to the vertical plate (1) through a hinge shaft, forming a rotatable fulcrum. The lower end is powered by a drive motor (52). The torque generated by the drive motor (52) is transmitted to the angle adjustment plate (51) through a transmission mechanism, causing it to rotate around the hinge point, thereby changing the tilt angle of the camera (4) mounted on the angle adjustment plate (51). The drive motor (52) drives the angle adjustment plate (51) to rotate, which can flexibly adjust the pitch angle of the camera (4) to meet the shooting needs of workers at different heights and improve the comprehensiveness of safety belt wearing recognition.

[0040] Furthermore, such as Figure 2As shown, the drive motor 52 is mounted on the side of the upright plate 1. The top output shaft of the drive motor 52 is connected to the lower end of the angle adjustment plate 51 through the connecting rod 53. One end of the connecting rod 53 is hinged to the output shaft of the drive motor 52, and the other end is hinged to the lower end of the angle adjustment plate 51.

[0041] The drive motor (52) is mounted on the side of the upright plate (1). Its top output shaft is hinged to one end of the connecting rod (53), and the other end of the connecting rod (53) is hinged to the lower end of the angle adjustment plate (51), forming a planar four-bar linkage. The circular motion of the output shaft of the drive motor (52) is converted into the flipping motion of the angle adjustment plate (51) through the transmission of the connecting rod (53), thereby realizing the precise adjustment of the tilt angle of the camera (4). Based on the transmission of the connecting rod (53), the angle adjustment process is smooth and stable. By precisely controlling the rotation angle of the drive motor (52), the angle of the angle adjustment plate (51) can be precisely adjusted, ensuring that the camera (4) captures the working area at a precise angle.

[0042] Furthermore, such as Figure 3 As shown, the protective cover 6 includes a lower half shell 61 and an upper half shell 62. The lower half shell 61 is fixed to the outside of the upright plate 1. The upper part of the lower half shell 61 is hinged to the upper half shell 62 through a hinge 65. The upper half shell 62 can be flipped upward to cover the camera 4 and is locked to the upright plate 1 by a locking bolt 64.

[0043] The protective cover (6) consists of a lower half-shell (61) and an upper half-shell (62). The lower half-shell (61) is fixedly installed on the outside of the upright plate (1). The upper part of the lower half-shell (61) is connected to the upper half-shell (62) through a hinge (65), allowing the upper half-shell (62) to be flipped upwards around the hinge point. When it is necessary to cover the camera (4), the upper half-shell (62) is flipped over to cover it, and then the locking bolt (64) is passed through the corresponding screw holes on the upper half-shell (62) and the upright plate (1) and tightened, so that the upper half-shell (62) is firmly locked on the upright plate (1). The structure of this protective cover (6) forms a good protective sealed space with a protection level of IP65, which can effectively resist the corrosion of the camera (4) and the angle adjustment component (5) by external factors such as dust and rain, greatly extending the maintenance cycle of the equipment and reducing the frequency of equipment failure.

[0044] Furthermore, such as Figure 3 As shown, the outer wall of the upper shell 62 is equipped with a handle 63 for easy manual opening and closing.

[0045] The handle (63) installed on the outer wall of the upper shell (62) makes the opening and closing of the protective cover (6) easier and more convenient. A single person can quickly complete the opening and closing of the protective cover (6), improving the efficiency of equipment use.

[0046] Furthermore, a damper is installed between the turntable 2 and the upright plate 1. The damper is used to adjust the resistance when the turntable 2 rotates, so that the turntable 2 can remain stable after rotating to a specified angle, preventing the shooting direction from changing due to slight shaking caused by external forces.

[0047] The damper installed between the turntable (2) and the vertical plate (1) utilizes the viscous or frictional resistance of the damping medium to consume energy during the rotation of the turntable (2) and increase the damping ratio of the system. When the turntable (2) rotates to a specified angle, the resistance generated by the damper can counteract the slight swaying caused by external forces, keeping the turntable (2) stable. The damper's function is to keep the angle of the turntable (2) precise, significantly enhance the device's resistance to external interference, and ensure that the shooting direction of the camera (4) is stable and will not change the shooting angle due to slight external forces.

[0048] Furthermore, such as Figure 1 , Figure 3 As shown, the bottom of the lower shell 61 is provided with a drainage hole, which is connected to the inside of the protective cover 6. A filter screen is installed at the drainage hole to drain the water inside the protective cover 6 in a timely manner, preventing water from accumulating inside the protective cover 6 and causing damage to the camera 4 and the angle adjustment component 5.

[0049] The drain hole at the bottom of the lower shell (61) is connected to the inside of the protective cover (6). Based on the principle of gravity, water accumulated inside the protective cover (6) can flow out through the drain hole. The filter screen installed at the drain hole intercepts debris based on the principle of sieving, preventing it from clogging the drain hole. The design of the drain hole and the filter screen allows water accumulated inside the protective cover (6) to be discharged in time, effectively avoiding damage such as short circuits to the internal circuits of the camera (4) and the angle adjustment component (5) caused by water accumulation, and greatly reducing the equipment failure rate.

[0050] When the target detection-based safety belt wearing recognition device of this utility model is used, the rotary motor inside the base (3) starts working after the device is started. It transmits the rotational driving torque to the turntable (2) through the motor shaft, causing the turntable (2) to rotate around the vertical axis. The rotation of the turntable (2) enables the upright plate (1) and the camera (4) installed on one side of the upright plate (1) to rotate 360° in the horizontal direction, thereby realizing a full-range scan of the work area and quickly locating the areas that need to be monitored.

[0051] After horizontal scanning and positioning are completed, the angle adjustment component (5) comes into play. The drive motor (52) is installed on the side of the upright plate (1), and its top output shaft is hinged to one end of the connecting rod (53). The other end of the connecting rod (53) is hinged to the lower end of the angle adjustment plate (51), forming a planar four-bar linkage. When the drive motor (52) is running, the circular motion of the output shaft is converted into the rotational motion of the angle adjustment plate (51) around the hinge point with the upright plate (1) through the transmission of the connecting rod (53). Since the camera (4) is installed on the angle adjustment plate (51), the rotation of the angle adjustment plate (51) drives the camera (4) to change the tilt angle, thereby adjusting the shooting angle of the working area at different heights and ensuring that the camera (4) can clearly capture the safety belt wearing status of the workers at each height.

[0052] The image information captured by the camera (4) is processed and analyzed by the built-in target detection algorithm to identify whether the workers are wearing safety belts properly. Once a situation of not wearing or wearing the belt improperly is detected, the device can issue an alarm through the preset alarm system to remind the on-site management personnel to deal with it in time.

[0053] When the device is not in use, the operator can easily flip the upper half of the shell (62) upwards using the handle (63) on the outer wall of the upper half shell (62) to cover the camera (4) and the angle adjustment component (5). Then, by passing the locking bolt (64) through the corresponding screw holes on the upper half shell (62) and the upright plate (1) and tightening it, the upper half shell (62) is firmly locked onto the upright plate (1), forming a protective sealed space, achieving an IP65 protection level, and effectively resisting the corrosion of the equipment by external factors such as dust and rain. At the same time, the drainage hole set at the bottom of the lower half shell (61) drains the water accumulated in the protective cover (6) in time based on the principle of gravity. The filter screen at the drainage hole intercepts debris, preventing the drainage hole from being blocked, further protecting the internal circuits of the camera (4) and the angle adjustment component (5), avoiding damage such as short circuits caused by water accumulation, and reducing the equipment failure rate.

[0054] In addition, the damper installed between the turntable (2) and the vertical plate (1) consumes energy by utilizing the viscous resistance or frictional resistance of the damping medium during the rotation of the turntable (2), thereby increasing the damping ratio of the system. When the turntable (2) rotates to a specified angle, the resistance generated by the damper can counteract the slight sway caused by external forces, keeping the turntable (2) stable and ensuring that the shooting direction of the camera (4) is not affected by slight external interference, and always stably aligns with the target working area, thus ensuring the accuracy and stability of the detection.

[0055] Finally, it should be noted that the electronic components in the above-mentioned components, such as the camera 4 in this embodiment, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between each electrical component in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A seatbelt wearing recognition device based on target detection, comprising a stand (1), characterized in that: A turntable (2) is installed at the bottom of the upright plate (1), and a base (3) is installed at the bottom of the turntable (2). A camera (4) is installed on one side of the upright plate (1). The camera (4) is tilted by the angle adjustment component (5) to shoot the working area at different heights. A protective cover (6) is installed on the outside of the camera (4) and the angle adjustment component (5) for protection when not in use.

2. The seatbelt wearing recognition device based on target detection according to claim 1, characterized in that: A rotary motor is installed inside the base (3), which drives the turntable (2) to rotate.

3. The seatbelt wearing recognition device based on target detection according to claim 1, characterized in that: The angle adjustment component (5) includes an angle adjustment plate (51), which is inclined and hinged to the vertical plate (1) at the upper end, and rotated at the lower end by a drive motor (52).

4. The seatbelt wearing recognition device based on target detection according to claim 3, characterized in that: The drive motor (52) is mounted on the side of the upright plate (1). The top output shaft of the drive motor (52) is connected to the lower end of the angle adjustment plate (51) through the connecting rod (53). One end of the connecting rod (53) is hinged to the output shaft of the drive motor (52), and the other end is hinged to the lower end of the angle adjustment plate (51).

5. The seatbelt wearing recognition device based on target detection according to claim 1, characterized in that: The protective cover (6) includes a lower half shell (61) and an upper half shell (62). The lower half shell (61) is fixed to the outside of the upright plate (1). The upper part of the lower half shell (61) is hinged to the upper half shell (62) through a hinge (65). The upper half shell (62) can be flipped upward to cover the camera (4) and is locked to the upright plate (1) by a locking bolt (64).

6. The seatbelt wearing recognition device based on target detection according to claim 5, characterized in that: The outer wall of the upper shell (62) is fitted with a handle (63) for easy manual opening and closing.

7. The seatbelt wearing recognition device based on target detection according to claim 1, characterized in that: A damper is installed between the turntable (2) and the upright plate (1). The damper is used to adjust the resistance when the turntable (2) rotates, so that the turntable (2) can remain stable after rotating to a specified angle, and prevent the shooting direction from changing due to slight shaking caused by external force.

8. The seatbelt wearing recognition device based on target detection according to claim 5, characterized in that: The bottom of the lower shell (61) is provided with a drainage hole, which is connected to the inside of the protective cover (6). A filter screen is installed at the drainage hole to drain the water inside the protective cover (6) in a timely manner, preventing water from accumulating inside the protective cover (6) and causing damage to the camera (4) and the angle adjustment component (5).

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