Video recognition-based anti-collision protection system for overhead crane

Abstract

The invention discloses a video recognition-based anti-collision protection system for a gantry crane, which comprises a host processing system, a brake assembly and a protection assembly, the braking assembly comprises a guide rail, a movable rack, an air cylinder, a pressure block, a guide block, a buffering sleeve, a guide rod, a trigger rod, a transmission gear, a transmission rack, a bearing wheel, a clamp, a transmission gear, a spring, a sliding sleeve and a threaded sleeve. The braking assembly is used for braking and buffering of the device. By arranging a damping piston and a steel wire rope, the device avoids collision injury to a worker caused by shaking of a heavy object, the safety of the device is improved, during use, liquid cannot flow through a metal pipe in a short time, the damping piston slowly unloads the heavy object, and the safety of the device is improved. Therefore, the situation that the heavy object shakes and collides with nearby people is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection, and particularly to an anti-collision protection system for overhead cranes based on video recognition. Background Art

[0002] An anti-collision protection system for an overhead crane is a safety protection device that uses high-precision sensors, controllers and other devices to monitor the operating status of the overhead crane and the surrounding environment in real time, and automatically takes measures such as deceleration and braking to avoid collisions between the overhead crane and other objects when detecting potential collision risks.

[0003] Existing such devices have problems with insufficient safety. For example, an anti-collision mechanism for a hook disclosed in Chinese Patent Publication No. "CN221521879U" improves the hook of the overhead crane through two protective covers to protect the hook body. However, in actual use, the heavy object below the hook of the overhead crane is the main source of inertia, and most accidents are caused by the heavy object colliding with nearby workers due to inertia. This device only protects the hook body and does not limit the heavy object, resulting in insufficient safety of the device and being unable to prevent the heavy object from colliding with nearby workers. Accordingly, this application proposes an anti-collision protection system for an overhead crane based on video recognition. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose an anti-collision protection system for an overhead crane based on video recognition.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: An anti-collision protection system for an overhead crane based on video recognition, including a host processing system, a braking component and a protection component. The braking component includes a guide rail, a moving rack, a cylinder, a pressure block, a guide block, a buffer sleeve, a guide rod, a trigger rod, a transmission gear, a transmission rack, a load-bearing wheel, a clamp, a transmission gear, a spring, a sliding sleeve, and a threaded sleeve. The braking component is used for braking and buffering of the device; The protection component is used to prevent the heavy object from hitting the worker. The protection component consists of a base, a damping piston, a steel wire rope, an oil box, and an oil leakage joint. The front end of the damping piston is fixedly connected to the steel wire rope; The host processing system includes a high-definition camera, a high-precision sensor, and an image processing module. The image processing module collects video data through the high-definition camera, accurately distinguishes different objects such as personnel, equipment, and obstacles through image recognition algorithms, and makes judgments according to preset safety rules.

[0006] Preferably, the side wall of the base is fixedly connected to the damping piston. A load-bearing beam is fixedly connected to the base, and a high-precision sensor is fixedly connected to the outer surface of the load-bearing beam. A lifting mechanism is arranged in the middle of the load-bearing beam, and a hook is arranged below the lifting mechanism.

[0007] Preferably, the oil box is fixedly connected to the upper surface of the base. The guide rod is fixedly connected to the base. The buffer sleeve is sleeved on the guide rod. The guide block is fixedly connected to the guide rod. The upper surface of the guide block is fixedly connected to the cylinder. The front end of the output rod of the cylinder is fixedly connected to the pressure block.

[0008] Preferably, a load-bearing wheel is rotatably connected to the inner side wall of the base. The number of the load-bearing wheels is eight. A moving motor is fixedly connected to the center of one of the load-bearing wheels, and the moving motor is fixedly connected to the side wall of the base.

[0009] Preferably, a limit baffle is fixedly connected to the inner top of the base. The lower surface of the limit baffle is rotatably connected to a transmission gear, and the lower surface of the limit baffle is also slidably connected to a transmission rack.

[0010] Preferably, the lower end of the transmission rack is fixedly connected to a clamp. The transmission gear is fixedly connected to the load-bearing wheel.

[0011] Preferably, a spring is fixedly connected to the clamp. The clamp is slidably connected to a sliding sleeve, and the sliding sleeve is threadedly connected to a threaded sleeve.

[0012] The present invention has the following beneficial effects: 1. By arranging the damping piston and the steel wire rope in this application, the device avoids the injury to the staff caused by the shaking of the heavy object, increasing the safety of the device. During use, since the liquid cannot flow through the metal pipe in a short time, the damping piston will slowly unload the heavy object, thereby preventing the heavy object from shaking and hitting nearby personnel.

[0013] 2. By arranging the oil box, the device can lubricate the moving rack and the transmission gear during use. When the hydraulic oil flows from the damping piston into the oil box, the hydraulic oil in the oil box will flow onto the moving rack, thereby lubricating the moving rack and the transmission gear without manual application of lubricating oil.

[0014] 3. By arranging the clamp, the device can provide friction for the load-bearing wheel when it stops, reducing the inertia when the device makes an emergency stop. As a result, the moving distance of the device during emergency stop is reduced, and the braking effect of the device is improved. During use, the two clamps will move towards each other to clamp the load-bearing wheel, thereby reducing the inertia.

[0015] 4. By setting high-precision sensors and high-definition cameras, the device can be sensed when a person approaches, thereby increasing the safety of the device. During use, the high-precision sensors can detect the approach of the staff, while the high-definition cameras can observe whether there are people in the lifting area, thus enhancing the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic diagram of the overall structure of a crane anti-collision protection system based on video recognition proposed by the present invention; Figure 2 is Figure 1 An enlarged view of part A; Figure 3 FIG. is a schematic diagram of the position of the moving rack of a crane anti-collision protection system based on video recognition proposed by the present invention; Figure 4 is Figure 3 An enlarged view of part B; Figure 5 FIG. is a schematic diagram of the position of the lifting mechanism of a crane anti-collision protection system based on video recognition proposed by the present invention; Figure 6 FIG. is a schematic diagram of the position of the moving motor of a crane anti-collision protection system based on video recognition proposed by the present invention; Figure 7 FIG. is a schematic diagram of the structure of the clamp of a crane anti-collision protection system based on video recognition proposed by the present invention; Figure 8 FIG. is a schematic diagram of the structure of the transmission gear of a crane anti-collision protection system based on video recognition proposed by the present invention; Figure 9 FIG. is a schematic diagram of the position of the sliding sleeve of a crane anti-collision protection system based on video recognition proposed by the present invention; Figure 10 FIG. is a schematic diagram of the structure of the sliding sleeve of a crane anti-collision protection system based on video recognition proposed by the present invention.

[0017] In the figure: 1 base, 2 load-bearing beam, 3 high-definition camera, 4 high-precision sensor, 5 guide rail, 6 moving rack, 7 transmission gear, 8 damping piston, 9 oil box, 10 lifting mechanism, 11 hook, 12 steel wire rope, 13 guide rod, 14 cylinder, 15 pressure block, 16 guide block, 17 buffer sleeve, 18 moving motor, 19 clamp, 20 load-bearing wheel, 21 transmission rack, 22 transmission gear, 23 limit baffle, 24 spring, 25 threaded sleeve, 26 sliding sleeve, 27 trigger rod, 28 oil leakage joint. DETAILED DESCRIPTION OF THE INVENTION

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1:

[0019] Refer to Figure 1-6 , a collision prevention protection system for a gantry crane based on video recognition, including a braking component and a protection component; The braking component includes a guide rail 5, a moving rack 6, a cylinder 14, a pressure block 15, a guide block 16, a buffer sleeve 17, a guide rod 13, a trigger rod 27, a transmission gear 22, a transmission rack 21, a load-bearing wheel 20, a clamp 19, a transmission gear 7, a spring 24, a sliding sleeve 26, and a threaded sleeve 25. The braking component is used for braking and buffering of the device. The inner side wall of the base 1 is rotatably connected to a load-bearing wheel 20. The number of load-bearing wheels 20 is eight. The inner top of the base 1 is fixedly connected with a limit baffle 23. The lower surface of the limit baffle 23 is rotatably connected to the transmission gear 22, and the lower surface of the limit baffle 23 is also slidably connected to the transmission rack 21.

[0020] The center of one of the load-bearing wheels 20 is fixedly connected with a moving motor 18. The moving motor 18 is fixedly connected to the side wall of the base 1. The transmission gear 7 is fixedly connected to the load-bearing wheel 20.

[0021] The side wall of the base 1 is fixedly connected with a damping piston 8. The oil box 9 is fixedly connected to the upper surface of the base 1. The front end of the output rod of the cylinder 14 is fixedly connected to the pressure block 15. The guide rod 13 is fixedly connected to the base 1. The buffer sleeve 17 is sleeved on the guide rod 13. The guide block 16 is fixedly connected to the guide rod 13. The upper surface of the guide block 16 is fixedly connected to the cylinder 14.

[0022] In this embodiment, the lifting mechanism 10 and the hook 11 are both prior arts. The lifting mechanism 10 is used for lifting and lateral movement of heavy objects, and the hook 11 is used for hooking heavy objects.

[0023] Furthermore, refer to Figure 6 , when the moving motor 18 is turned on, one of the load-bearing wheels 20 can be rotated. At the same time, since the load-bearing wheel 20 is connected to the transmission gear 7, when the load-bearing wheel 20 rotates, the transmission gear 7 will also rotate. And the moving rack 6 meshes with the transmission gear 7, so the rotation of the transmission gear 7 will cause the base 1 to move forward or backward, thereby driving the movement of the heavy object. The heavy object needs to be connected to the hook 11 by means of a sling or the like.

[0024] Furthermore, refer to Figure 1, the wire rope 12 also needs to be connected to the heavy object. The wire rope 12 is connected to the output rod of the damping piston 8. There is a metal tube at the end of the damping piston 8 connected to the oil box 9. The diameter of this metal tube is relatively thin. When the device makes an emergency stop, the heavy object will sway due to inertia, which may hit the nearby staff. Since the output rod of the damping piston 8 is connected to the wire rope 12 and the wire rope 12 is connected to the heavy object, the movement of the heavy object will pull the output rod of the damping piston 8 to move back and forth. However, due to the metal tube at the end of the damping piston 8, the hydraulic oil will flow into the oil box 9 through this metal tube. Embodiment 2:

[0025] Reference Figure 5 , the protection component is used to prevent the heavy object from hitting the staff. The protection component consists of a base 1, a damping piston 8, a wire rope 12, an oil box 9, and an oil leakage joint 28. The front end of the damping piston 8 is fixedly connected to the wire rope 12. A load-bearing beam 2 is fixedly connected to the base 1. A lifting mechanism 10 is arranged in the middle of the load-bearing beam 2. A hook 11 is arranged below the lifting mechanism 10.

[0026] In this embodiment, there is hydraulic oil both inside the damping piston 8 and inside the oil box 9, and there is a spring for resetting inside the damping piston 8. The diameter of the metal tube is small, and the amount of hydraulic oil flowing out in a short time is not much, which will prevent the output rod of the damping piston 8 from moving a long distance in a short time, thereby forming a damping for the heavy object, restricting the amplitude of its movement, avoiding the heavy object from hitting the staff. At the same time, since the hydraulic oil can flow out of the damping piston 8, the swaying of the heavy object can be slowly unloaded, which can prevent the damping piston 8 from being damaged due to excessive load.

[0027] Furthermore, there is also a metal tube on the oil box 9, which is connected to the side wall of the base 1. There is a small hole at the bottom of the base 1 communicating with this metal tube. When the hydraulic oil in the oil box 9 is too much, it can drip through this small hole.

[0028] Furthermore, the hydraulic oil will drip onto the moving rack 6. When the transmission gear 7 moves, it will stick to the hydraulic oil and smear the hydraulic oil to other places of the moving rack 6, so that the transmission gear 7 and the moving rack 6 of this device do not need to be lubricated manually. Embodiment 3:

[0029] Reference Figures 2-3 And Figure 4 、 Figures 7-10 The lower end of the transmission rack 21 is fixedly connected to the clamp 19. A spring 24 is fixedly connected to the clamp 19. The clamp 19 is slidably connected to the sliding sleeve 26. The sliding sleeve 26 is threadedly connected to the threaded sleeve 25. A high-precision sensor 4 is fixedly connected to the outer surface of the load-bearing beam 2.

[0030] In this embodiment, the pressure block 15 is fixedly connected to the output rod of the cylinder 14. The high-precision sensor 4 and the high-definition camera 3 are both existing technologies. The high-precision sensor 4 is used to identify whether a staff member is near the device, and the high-definition camera 3 is used to monitor the hoisting area and cooperate with the AI recognition algorithm. When a staff member is detected in the hoisting area, the cylinder 14 will be inflated, causing the pressure block 15 to press down and providing a certain resistance.

[0031] Further, when the trigger rod 27 is in the state as Figure 3 , the sliding sleeve 26 can be limited. The side wall of the trigger rod 27 will abut against the side wall of the sliding sleeve 26, preventing the sliding sleeve 26 from sliding out of the clamp 19 through the spring 24.

[0032] Further, referring to Figure 3 , the trigger rod 27 is slidably connected to the base 1. When the pressure block 15 is pressed downward, the movement of the guide block 16 can be blocked. Since the cylinder 14 is fixedly connected to the guide block 16, the trigger rod 27 will fit against the guide block 16 at this time. At the same time, due to an inclined surface on the guide block 16, the trigger rod 27 will be pushed upward under the action of this inclined surface, thus releasing the limit on the sliding sleeve 26 and connecting the threaded sleeve 25 to the transmission gear 7.

[0033] Further, the threaded sleeve 25 and the sliding sleeve 26 are threadedly connected. When the threaded sleeve 25 is connected to the transmission gear 7, the transmission gear 7 will cause the threaded sleeve 25 to rotate, moving the sliding sleeve 26 towards the load-bearing wheel 20 and pressing against the clamp 19 to clamp the load-bearing wheel 20. The clamp 19 can move towards each other through the transmission rack 21 and the transmission gear 22 to clamp the two sides of the load-bearing wheel 20, forming a frictional effect on the load-bearing wheel 20 to achieve braking.

[0034] Further, the number of the threaded sleeves 25 and the sliding sleeves 26 is multiple. Half of them need to be connected with left-handed threads, and the other half need to be connected with right-handed threads to enable the device to adapt to different moving directions. Embodiment 4:

[0035] The host processing system includes a high-definition camera (3), a high-precision sensor (4), and an image processing module. The image processing module collects video data through the high-definition camera (3), accurately distinguishes different objects such as personnel, equipment, and obstacles through an image recognition algorithm, and makes judgments according to preset safety rules.

[0036] In this embodiment, the image processing module collects video data through the high-definition camera 3, processes the data in real time, and performs image recognition on the objects in the hoisting area and its vicinity through image recognition algorithms to distinguish different objects such as personnel, equipment, and obstacles. And it makes judgments according to the preset safety rules. Once an abnormal situation is detected, such as a personnel intrusion, the algorithm will immediately issue a warning signal.

[0037] Furthermore, after receiving the warning signal, the system will automatically start the emergency braking procedure, quickly cut off the power source of the hook, and at the same time trigger the audible and visual alarm device to remind the on-site personnel to pay attention. In addition, the system can also be linked with the enterprise's safety management system to report the accident information to the management department in real time for quick response and subsequent processing.

[0038] Furthermore, the emergency braking procedure is as follows: the cylinder 14 is activated to press the pressure block 15 downward. After that, the cylinder 14 is activated again to let the pressure block 15 press downward and provide a certain resistance. Then, the trigger rod 27 is moved upward (for the specific process, refer to Embodiment 3), and finally, the clamp 19 clamps the load-bearing wheel 20 to stop the movement of the base 1. At the same time, the position of the heavy object is restricted by the damping piston 8 to avoid injury to the staff caused by the heavy object.

[0039] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. An anti-collision protection system for a gantry crane based on video recognition, comprising a host processing system, a braking component and a protection component, characterized in that The braking assembly includes a guide rail (5), a moving rack (6), a cylinder (14), a pressure block (15), a guide block (16), a buffer sleeve (17), a guide rod (13), a trigger rod (27), a transmission gear (22), a transmission rack (21), a load-bearing wheel (20), a clamp (19), a transmission gear (7), a spring (24), a sliding sleeve (26), and a threaded sleeve (25). The braking assembly is used for braking and buffering of this device; The protection assembly is used to prevent heavy objects from hitting the staff. The protection assembly consists of a base (1), a damping piston (8), a steel wire rope (12), an oil box (9), and an oil leakage joint (28). The front end of the damping piston (8) is fixedly connected to the steel wire rope (12); The host processing system includes a high-definition camera (3), a high-precision sensor (4), and an image processing module. The image processing module collects video data through the high-definition camera (3), accurately distinguishes different objects such as personnel, equipment, and obstacles through image recognition algorithms, and makes judgments according to preset safety rules.

2. The anti-collision protection system for a gantry crane based on video recognition according to claim 1, wherein The side wall of the base (1) is fixedly connected to the damping piston (8). A load-bearing beam (2) is fixedly connected to the base (1). The outer surface of the load-bearing beam (2) is fixedly connected to the high-precision sensor (4). A lifting mechanism (10) is arranged in the middle of the load-bearing beam (2). A hook (11) is arranged below the lifting mechanism (10).

3. The anti-collision protection system for gantry cranes based on video recognition according to claim 1, wherein, The oil box (9) is fixedly connected to the upper surface of the base (1). The guide rod (13) is fixedly connected to the base (1). The buffer sleeve (17) is sleeved on the guide rod (13). The guide block (16) is fixedly connected to the guide rod (13). The upper surface of the guide block (16) is fixedly connected to the cylinder (14). The front end of the output rod of the cylinder (14) is fixedly connected to the pressure block (15).

4. The anti-collision protection system for overhead cranes based on video recognition according to claim 1, wherein, The inner side wall of the base (1) is rotatably connected to the load-bearing wheel (20). The number of the load-bearing wheels (20) is eight. The center of one of the load-bearing wheels (20) is fixedly connected to a moving motor (18). The moving motor (18) is fixedly connected to the side wall of the base (1).

5. The anti-collision protection system for overhead cranes based on video recognition according to claim 1, characterized in that, A limit baffle (23) is fixedly connected to the inner top of the base (1). The lower surface of the limit baffle (23) is rotatably connected to the transmission gear (22). The lower surface of the limit baffle (23) is also slidably connected to the transmission rack (21).

6. The anti-collision protection system for gantry cranes based on video recognition according to claim 1, wherein, The lower end of the transmission rack (21) is fixedly connected to the clamp (19). The transmission gear (7) is fixedly connected to the load-bearing wheel (20).

7. A gantry crane anti-collision protection system based on video recognition according to claim 1, characterized in that A spring (24) is fixedly connected to the clamp (19). The clamp (19) is slidably connected to the sliding sleeve (26). The sliding sleeve (26) is threadedly connected to the threaded sleeve (25).

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