Container empty weight misloading detection and early warning device

Abstract

The application relates to the technical field of container detection, in particular to a container empty weight misloading detection and early warning device, which comprises a frame, a mounting frame, a detection assembly, an early warning assembly and a control center, the detection assembly comprises a camera unit and a weight measuring unit, the camera unit is connected to the frame through the mounting frame and faces the container to be detected, a weight measuring platform is arranged on the ground below the frame, the early warning assembly is fixedly connected to the frame, the control center is arranged on the frame and is electrically connected with the camera unit, the weight sensor and the buzzer, is used for receiving the detection data of the detection assembly, and gives an alarm after judging that the container is empty weight misloaded. The application adopts a static detection mode of image recognition and ground weighing, the container is not prone to shaking during the detection process and is not easily affected by the external environment, the stability of the detection is high, and false alarms are effectively reduced.

Description

Technical Field

[0001] This application relates to the technical field of container inspection, and in particular to a container empty / weight misloading detection and early warning device. Background Technology

[0002] Freight containers are widely used in water, road, and rail transportation, and are an indispensable part of the modern logistics system. In container shipping, containers carrying cargo are usually called loaded containers, and those without cargo are called empty containers. During container loading and unloading operations, because containers are sealed, it is impossible to know from the outside whether a container is loaded or empty when it is lifted. The loading list is required to determine this. Therefore, the problem of mixing loaded and empty containers on the same vehicle, i.e., the problem of misloading, frequently occurs. This not only affects logistics efficiency but also easily leads to crimes such as smuggling and concealment. Furthermore, misloading can cause uneven weight distribution on the vehicle, posing serious safety hazards. Traditionally, the problem of misloading is addressed through manual inspection, which is not only inefficient, affecting transportation efficiency, but also incurs significant labor costs.

[0003] In the prior art, Chinese patent document CN220950926U discloses a container vehicle overload / eccentric loading and empty / loaded mixed loading detection device, including an alarm device, a control device, a lifting device, an overload / eccentric loading detection device, and a vehicle number recognition device. The lifting device includes a first mounting frame, a main body, and lifting components. The lifting components are set on the main body and have multiple lifting points for picking up containers. The vehicle number recognition device includes a first image detection unit. The alarm device and the vehicle number recognition device are communicatively connected to the control device. Weight sensors are set at the corresponding lifting point positions, and the vehicle number markings set on the vehicle body are further identified by the first image detection unit. The cooperation between the first mounting frame and the main body simplifies the installation and operation of the vehicle number recognition device. When the overload / eccentric loading detection device detects that the container is overloaded, unbalanced, or unbalanced, it can issue an alarm message through the alarm device to promptly remind the operator that the current container is overloaded or unbalanced, and at the same time assist the operator in properly stacking the containers.

[0004] However, the aforementioned patent documents rely on weight sensors installed at the lifting points for detection, which is a detection process during container lifting. This process is affected by the driver's skill level or external environmental factors, resulting in large fluctuations in the detection process. It is prone to excessive deviations in the weighing readings, affecting the judgment of whether the container is loaded or empty, and easily causing false alarms. Utility Model Content

[0005] This application provides a container empty / weight misloading detection and early warning device, which can at least partially solve the above-mentioned technical problems.

[0006] This application provides a container empty / weight misloading detection and early warning device, which adopts the following technical solution: A container empty / weight misloading detection and early warning device includes a frame, a mounting frame, a detection component, an early warning component, and a control center. The detection component includes a camera unit and a weighing unit. One end of the mounting frame is vertically connected to the frame, and the camera unit is connected to the other end of the mounting frame, facing the container to be tested. The weighing unit includes a weighing platform and multiple weight sensors disposed below the weighing platform. The weighing platform is disposed on the ground below the frame. The early warning component includes a buzzer, which is fixedly connected to the frame. The control center is located on the frame and is electrically connected to the camera unit, the weight sensor, and the buzzer. It is used to receive the detection data from the weight sensor and the camera unit, and to issue an alarm after determining that the container is misloaded (empty or overloaded).

[0007] By adopting the above technical solution, when a vehicle loaded with a container to be inspected enters the weighing platform, the camera unit identifies the container number, the control center obtains the reported weight of the container, reads data measured by multiple weight sensors, and analyzes whether the weight difference between different containers exceeds the set value, thereby determining whether the container is misloaded (empty or overloaded). At the same time, it compares whether the measured data matches the reported weight of the container. When it is determined that the container is misloaded or does not match the reported weight, the control center controls the buzzer to sound an alarm. During the inspection process, the vehicle loaded with the container is parked on the weighing platform, which is a static inspection. The container is not easy to shake during the inspection process and is not easily affected by the external environment, effectively reducing the possibility of false alarms and ensuring high stability of the inspection.

[0008] Optionally, a fill light is connected to the mounting bracket, the fill light is located on the side of the camera unit, and the orientation of the fill light is the same as that of the camera unit.

[0009] By adopting the above technical solution, the supplementary light assists the camera unit in its work, providing a light source for the camera unit at night or in low light conditions, improving the clarity of the images captured by the camera unit, and reducing the occurrence of camera unit recognition errors or failures to recognize images.

[0010] Optionally, the mounting frame is provided with a rotating mechanism, which includes a rotating frame rotatably mounted on the mounting frame and a first motor for driving the rotating frame to rotate. The camera unit is connected to the rotating frame, and the control center is electrically connected to the first motor.

[0011] By adopting the above technical solution, when inspecting containers of different specifications, the camera unit can rotate and adjust the shooting angle according to the different distances between the container and the camera unit and the different positions of the container number, thus covering a wider inspection area, increasing the recognition range, facilitating the identification of containers of different specifications, and improving the applicability.

[0012] Optionally, the mounting frame is further provided with a lifting mechanism, which includes a lifting rod and a lifting component for driving the lifting rod to move up and down. One end of the lifting rod is vertically slidably connected to the frame, and the other end of the lifting rod is connected to the mounting frame. The control center is electrically connected to the lifting component.

[0013] By adopting the above technical solution, when inspecting containers of different specifications, the camera unit can adjust its height according to the different heights of the containers. In conjunction with the rotating mechanism, the camera unit can be flexibly adjusted in height and angle, further increasing the recognition range and improving the applicability of the camera unit.

[0014] Optionally, the rotating frame is connected to the mounting frame via a quick-release mechanism. The quick-release mechanism includes a bracket fixed on the mounting frame and a buckle movably connected to the rotating frame, the buckle being adapted to the bracket.

[0015] By adopting the above technical solution, the buckle and the bracket can be quickly locked or separated, and the rotating frame and the mounting frame form a detachable connection. During routine inspection and maintenance of the camera unit, the rotating frame and the camera unit can be quickly removed. After the inspection is completed, the rotating frame and the camera unit can be quickly installed, which simplifies the inspection process and improves the inspection efficiency.

[0016] Optionally, it also includes a protective component, which includes a protective cover detachably connected to the mounting bracket and enclosing the camera unit inside. The protective cover has an observation window along the orientation of the camera unit, and a sunshade is provided on the upper side of the protective cover, which is connected above the observation window.

[0017] By adopting the above technical solutions, the camera unit, which operates in an outdoor environment, is easily affected by rain, snow, sand, and debris, which can affect the clarity of the image or even damage the lens. The protective cover can protect the camera unit, reduce the damage that the external environment may cause to the camera unit, and extend its service life. The sun visor can reduce lens glare caused by sunlight, reduce image overexposure, improve the stability of visual inspection, and increase the imaging rate of the camera unit, thereby improving the efficiency of inspection.

[0018] Optionally, a blower and a heater are provided inside the protective cover on the side facing away from the camera unit, and the blower faces the same direction as the camera unit.

[0019] By adopting the above technical solution, the setting of the blower can maintain a positive pressure state inside the protective cover, reducing the possibility of dust entering the protective cover and causing damage to the lens of the camera unit. When the camera unit is working in low temperature and rainy / snowy weather, the setting of the heater can reduce the possibility of lens frost and fogging, improve the clarity of the image captured by the camera unit, reduce the frequency of manual cleaning, and improve the continuous working capability.

[0020] Optionally, the detection component further includes a distance sensor and a height sensor disposed on the side of the camera unit. Both the distance sensor and the height sensor are connected to the frame and are electrically connected to the control center. The control center receives the detection data from the distance sensor and the height sensor and controls the first motor and the lifting component to operate.

[0021] By adopting the above technical solution, when inspecting containers of different specifications, the camera unit needs to adjust the shooting angle and height. The distance sensor and height sensor can detect the distance and height of the container to be inspected in real time and feed the data back to the control center. The control center automatically controls the first motor and lifting components based on the sensor data, optimizes the position and angle of the camera unit, realizes dynamic tracking and detection, reduces human intervention, improves the level of automation, and improves the efficiency of inspection.

[0022] Optionally, a sunken installation pit is provided on the ground around the weighing platform, the weighing platform is embedded in the installation pit, the upper surface of the weighing platform is flush with the ground, and an elastic sealing strip is filled between the inner wall of the installation pit and the side of the weighing platform.

[0023] By adopting the above technical solution, the upper surface of the weighing platform is flush with the ground, allowing containers to pass smoothly with vehicles, reducing the risk of bumps or damage. At the same time, it reduces the damage to the weighing platform caused by external factors such as car collisions. The elastic sealing strip can reduce the amount of debris and rainwater falling into the gap between the inner wall of the installation pit and the weighing platform, reducing the impact on the accuracy and service life of the sensors.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By combining image recognition with static detection using ground weighing, it can simultaneously detect and warn of incorrect container loading and unloading and verify whether the container meets the reported weight. The container is not easily shaken during the detection process and is not easily affected by the external environment, resulting in high detection stability and effectively reducing the possibility of false alarms.

[0025] 2. The mounting frame is equipped with a lifting mechanism and a rotating mechanism, which can adjust the height and shooting angle of the camera unit according to the specifications of different containers, thereby improving the applicability and recognition success rate.

[0026] 3. The camera unit is equipped with a protective cover and a blower and heater, which can protect the camera unit, improve the imaging rate and clarity of the camera unit, and improve the efficiency of detection. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the container empty / weight misloading detection and early warning device in the embodiments of this application; Figure 2 This is a schematic diagram of the detection component structure in an embodiment of this application; Figure 3 This is a diagram illustrating the position of the gears in an embodiment of this application; Figure 4 This is a diagram showing the location of the sliding groove in an embodiment of this application; Figure 5 This is a cross-sectional view of the connecting frame and the card holder in an embodiment of this application.

[0028] Reference numerals: 100, frame; 200, mounting bracket; 300, detection component; 400, early warning component; 500, control center; 600, supplementary light; 700, protective component; 210, rotating frame; 220, first motor; 230, lifting rod; 240, lifting component; 250, connecting frame; 260, gear; 270, gear ring; 280, card seat; 281, card slot; 282, sliding groove; 290, buckle; 310, camera unit; 320, weighing unit; 321, weighing platform; 322, weight sensor; 323, mounting pit; 324, sealing strip; 330, distance sensor; 340, height sensor; 410, buzzer; 420, flash; 710, protective cover; 711, cavity; 720, blower; 730, heater. Detailed Implementation

[0029] The following combination Figures 1 to 5 This application will be described in further detail.

[0030] This embodiment discloses a container empty / weight misloading detection and early warning device.

[0031] Reference Figures 1 to 5The container empty / weight misloading detection and early warning device includes a frame 100, a mounting frame 200, a detection component 300, an early warning component 400, and a control center 500. The frame 100 is fixed on the ground, providing stable support for the detection component 300, the early warning component 400, and the control center 500. The mounting frame 200 is vertically connected to the frame 100. The detection component 300 is connected to the frame 100 through the mounting frame 200. The control center 500 receives the detection data from the detection component 300 and determines whether an empty / weight misloading of a container has occurred. Once an empty / weight misloading occurs, it controls the early warning component 400 to issue an alarm signal.

[0032] Specifically, the frame 100 is welded from high-strength steel to form a stable portal structure. The bottom of the frame 100 is fixed to the concrete foundation with anchor bolts to ensure overall stability and to withstand wind loads and the weight of the equipment.

[0033] The control center 500 is housed in a waterproof and dustproof control box, which is fixed to a column on one side of the frame 100. The core of the control center 500 is an industrial computer, which is electrically connected to the detection component 300 and the early warning component 400 via cables.

[0034] The warning component 400 includes a buzzer 410 and a flashlight 420. Both the buzzer 410 and the flashlight 420 are fixedly connected to a conspicuous position on one side of the frame 100 by a bracket. When a warning signal is received from the control center 500, the buzzer 410 and the flashlight 420 will emit a high-decibel alarm sound and a strong flashing light, respectively, to attract the attention of the on-site operators.

[0035] In this embodiment, the detection component 300 includes a camera unit 310 and a weighing unit 320. The camera unit 310 is connected to the lower end of the mounting frame 200 and is set facing the container to be inspected. The camera unit 310 uses a high-definition industrial camera to capture the container markings on the container to be inspected and transmits the data to the control center 500. The control center 500 obtains the specifications and reported weight of the container to be inspected based on the container markings.

[0036] The mounting bracket 200 is also equipped with a fill light 600 that faces the same direction as the camera unit 310. The fill light 600 is close to the side of the camera unit 310. When the light is insufficient, the fill light 600 can provide a light source for the camera unit 310, improve the clarity of the images captured by the camera unit 310, and reduce the occurrence of recognition errors or failure to recognize images by the camera unit 310.

[0037] The weighing unit 320 includes a weighing platform 321, which is a plate structure made of high-strength alloy steel. Its dimensions can be customized according to requirements; for example, a width of 3m can accommodate the wheelbase of most container-loading vehicles. Depending on the vehicle's wheelbase and the container loading length, the length can be set to 9m, 12m, 16m, 18m, etc. The weighing platform 321 is located on the ground in front of the frame 100. At least four weight sensors 322 are installed under the weighing platform 321, evenly distributed at the four corners. When a container-loading vehicle stops on the weighing platform 321, the weight distribution of the container is detected by the weight sensors 322 at the four corners of the platform 321, and the data is transmitted to the control center 500. The control center 500 reads the data measured by the multiple weight sensors 322 and analyzes whether the weight difference between different containers exceeds a set value. To determine if a container is incorrectly loaded or empty, for example, a weight difference threshold of 5t can be set between two 20-foot containers. If the weight difference exceeds this threshold, it is considered incorrectly loaded or empty. At the same time, the control center 500 compares the detected container weight with the reported weight to determine if there is any discrepancy. For example, if the container weight error threshold is set to 5%, if the difference between the detected container weight and the reported weight exceeds 5%, it is considered inconsistent with the reported weight. When it is determined to be incorrectly loaded or inconsistent with the reported weight, the control center 500 controls the early warning component 400 to issue an alarm signal.

[0038] In this application, the weighing unit 320 can be configured in multiple interconnected forms, depending on the number of containers loaded on the vehicle and the number of trailer sections towed by the vehicle, to match the detection needs of different numbers of containers.

[0039] To reduce potential damage to the weighing platform 321 from external factors such as car collisions, this application includes a sunken installation pit 323 on the ground surrounding the weighing platform 321. A concrete foundation is constructed within the installation pit 323, which is slightly larger than the weighing platform 321. The weighing platform 321 is embedded in the foundation support within the installation pit 323, with its upper surface flush with the ground. Weight sensors 322 are evenly installed at the four corners of the weighing platform 321 and calibrated. Furthermore, an elastic sealing strip 324 fills the gap between the inner wall of the installation pit 323 and the side of the weighing platform 321 to reduce the ingress of debris and rainwater into this gap, thus minimizing its impact on sensor accuracy and lifespan.

[0040] Because containers come in various specifications, and the dimensions of different specifications of containers vary significantly, such as the external dimensions of a 20-foot container (6.058m × 2.438m × 2.591m), a 40-foot container (12.192m × 2.438m × 2.591m), and a 40-foot high cube container (12.192m × 2.438m × 2.896m), the fixed shooting angle and height of the camera unit 310 may not be able to handle containers of different specifications when in operation, leading to difficulties in identifying container numbers. To improve the applicability and recognition success rate of the camera unit 310, this application provides a rotating mechanism and a lifting mechanism on the mounting frame 200 to adjust the shooting angle and height of the camera unit 310.

[0041] Specifically, the rotating mechanism includes a rotating frame 210 and a first motor 220 for driving the rotating frame 210 to rotate. The rotating frame 210 is rotatably connected to the mounting frame 200 via a rotating shaft. The first motor 220 is fixedly connected to the mounting frame 200. The camera unit 310 is connected to the rotating frame 210. The control center 500 is electrically connected to the first motor 220 and can control the first motor 220 to work, thereby automatically controlling the rotating frame 210 to drive the camera unit 310 to rotate, making the shooting angle of the camera unit 310 more flexible.

[0042] To better mount the first motor 220, the rotating mechanism also includes a gear 260 and a gear ring 270. The gear ring 270 is fixedly connected to the outer wall of the rotating frame 210, and the gear 260 is keyed to the first motor 220. The gear 260 meshes with the gear ring 270. The first motor 220 drives the gear 260 to rotate, which in turn drives the gear ring 270 to rotate, thereby adjusting the shooting angle of the camera unit 310.

[0043] The rotating frame 210 of this application is also fixedly provided with a card holder 280. The card holder 280 is disc-shaped. The card holder 280 is provided with a corresponding card slot 281 and a sliding groove 282. The sliding groove 282 is provided in a direction parallel to the radial direction of the card holder 280, and multiple sliding grooves 282 are perpendicularly intersected to form a cross. The card slot 281 is provided near the center of the card holder 280 in the sliding groove 282 and is evenly distributed in the circumferential direction. The card slot 281 is connected to the sliding groove 282. The cross section of the sliding groove 282 is T-shaped, and the card slot 281 is square. The camera unit 310 is provided with a connecting bracket 250, and a buckle 290 is fixedly connected to the connecting bracket 250. The end of the buckle 290 is spherical and its maximum outer diameter is adapted to the width of the sliding groove 282. The buckle 290 can be inserted into the slot 281 and can enter the sliding groove 282 from the slot 281 and can rotate within the sliding groove 282. The buckle 290 and the slot 280 are adapted to form a quick-release mechanism to realize the detachable connection of the camera unit 310, thereby realizing the quick installation and removal of the camera unit 310, which facilitates the inspection and maintenance of the camera unit 310 and improves work efficiency. Two sets of buckles 290 can be provided, with corresponding sliding grooves 282 parallel to the axis. After one set of buckles 290 is engaged in the groove 281, the connecting frame 250 can slide, so that the connecting frame 250 drives the set of buckles 290 to slide into the sliding groove 282. Then, the connecting frame 250 is rotated so that the other end of the connecting frame 250 is close to the seat 280, and then the other set of buckles 290 is slid into the groove 281. Then, the connecting frame 250 is slid in the opposite direction so that the set of buckles 290 slides into the sliding groove 282.

[0044] The lifting mechanism includes a lifting rod 230 and a lifting component 240 for driving the lifting rod 230 to move up and down. One end of the lifting rod 230 is vertically connected to the frame 100, and the other end is connected to the rotating frame 210. The control center 500 is electrically connected to the lifting component 240 and can control the operation of the lifting component 240, thereby driving the lifting rod 230 to move the camera unit 310 up and down in the vertical direction to adjust the shooting height. Specifically, the lifting rod 230 can be a cylinder, a hydraulic cylinder, or an electric cylinder; in this embodiment, an electric cylinder is preferred.

[0045] To handle the inspection of containers of different sizes and enable automatic adjustment and positioning of the camera unit 310 in terms of shooting angle and height, the inspection unit also includes a distance sensor 330 and a height sensor 340 mounted on the side of the camera unit 310. The distance sensor 330 can be a laser rangefinder, and the height sensor 340 can be an ultrasonic sensor. Both the distance sensor 330 and the height sensor 340 are connected to the frame 100, with their sensing ends facing the container to be inspected. Both the distance sensor 330 and the height sensor 340 are electrically connected to the control center 500. When a truck carrying a container approaches, the distance sensor 330 and the height sensor 340 detect the distance between the container and the camera unit 310 and the height of the container, respectively, and transmit the data to the control center 500. After receiving the data, the control center 500 automatically controls the first motor 220 and the lifting component 240 to adjust the camera unit 310 to a suitable shooting angle and height for the container, achieving dynamic tracking and focusing to ensure image quality.

[0046] To enhance the durability and image recognition performance of the camera unit 310 in harsh outdoor working environments, this application also includes a protective component 700. Specifically, the protective component 700 includes an aluminum alloy protective cover 710, which is detachably connected to the mounting bracket 200 by magnetic adsorption or plug-in, enclosing the camera unit 310 inside. To ensure light transmission, the protective cover 710 has an observation window along the orientation of the camera unit 310. Above the observation window, a forward-extending sunshade is connected to block direct sunlight from hitting the lens during the day, reducing the possibility of image overexposure.

[0047] Furthermore, the observation window is ring-shaped and is positioned around the camera of the camera unit 310, forming a ring-shaped air cavity between the camera and the camera, and a cavity 711 is formed between the protective cover 710 and the camera unit 310.

[0048] Dust in outdoor working environments can easily enter the protective housing 710 through the observation window, causing damage to the lens of the camera unit 310. In low-temperature, high-humidity environments and during rain or snow, condensation or ice can easily form inside the protective housing 710, affecting the clarity of the images. Therefore, this application includes a blower 720 and a heater 730 inside the protective housing 710 on the side opposite to the camera unit 310 (i.e., the rear).

[0049] To facilitate installation and reduce weight at the camera unit 310, both the blower 720 and the heater 730 are mounted on the frame 100. A flexible hose connects the space between the smart protective cover 710 and the camera unit 310. The blower 720 is positioned behind the heater 730 and connected via a pipe, allowing gas to be blown from the blower 720 to the heater 730, then carrying heat into the cavity 711, and finally expelled at the annular air chamber to form an air curtain, reducing dust entry. When heating is not required, the heater 730 can be turned off, and the blower 720 will blow gas through the heater 730 and into the cavity 711.

[0050] The airflow direction of the blower 720 is aligned with that of the camera unit 310. The blower 720 maintains positive pressure within the protective cover 710, reducing the possibility of dust entering the cover and damaging the lens of the camera unit 310. The heater 730 can be a PTC heater, which avoids the surface "reddening" phenomenon seen with electric heating tube heaters, thus reducing the risk of fire and other safety hazards. The heater 730 maintains the temperature within the protective cover 710 within a suitable range, reducing the possibility of frost and fogging on the camera unit 310 lens, decreasing the frequency of manual cleaning, improving the clarity of images captured by the camera unit 310, and enhancing continuous operation. The blower 720 and heater 730 can also be electrically connected to the control center 500. The control center 500 can activate the heater 730 and blower 720 according to a preset program to perform defogging and defrosting.

[0051] The working principle of this application embodiment is as follows: When a container truck enters the weighing platform 321, the weight sensor 322 sends the real-time collected weight data to the control center 500. The control center 500 reads the data measured by multiple weight sensors 322 and analyzes whether the weight difference between different containers exceeds a set value, thereby determining whether there is any misloading of empty or overweight containers. Simultaneously, the camera unit 310 is triggered to capture one or more images with container markings and sends them to the control center 500. The control center 500 obtains the specifications and reported weight of the container to be inspected based on the markings and compares the detected container weight with the reported weight to determine if there is any discrepancy. When misloading or a discrepancy with the reported weight is determined, the control center 500 controls the early warning component 400 to issue an alarm signal. The above are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A container empty weight misloading detection and early warning device, characterized in that: The system includes a frame (100), a mounting bracket (200), a detection component (300), an early warning component (400), and a control center (500). The detection component (300) includes a camera unit (310) and a weighing unit (320). One end of the mounting bracket (200) is vertically connected to the frame (100), and the camera unit (310) is connected to the other end of the mounting bracket (200). The camera unit (310) faces the container to be tested. The weighing unit (320) includes a weighing platform (321) and multiple weight sensors (322) disposed below the weighing platform (321). The weighing platform (321) is disposed on the ground below the frame (100). The warning component (400) includes a buzzer (410), which is fixedly connected to the frame (100). The control center (500) is located on the frame (100) and is electrically connected to the camera unit (310), the weight sensor (322), and the buzzer (410). It is used to receive the detection data of the weight sensor (322) and the camera unit (310) and to issue an alarm after determining that the container is misloaded.

2. The container empty and overload misloading detection and early warning device according to claim 1, characterized in that: A fill light (600) is connected to the mounting bracket (200). The fill light (600) is located on the side of the camera unit (310), and the orientation of the fill light (600) is the same as that of the camera unit (310).

3. The container empty and overload misloading detection and warning device according to claim 1, characterized in that: The mounting bracket (200) is provided with a rotating mechanism, which includes a rotating frame (210) rotatably mounted on the mounting bracket (200) and a first motor (220) for driving the rotating frame (210) to rotate. The camera unit (310) is connected to the rotating frame (210), and the control center (500) is electrically connected to the first motor (220).

4. The container empty-load-misloading detection and early warning device according to claim 3, characterized in that: The mounting frame (200) is also provided with a lifting mechanism, which includes a lifting rod (230) and a lifting component (240) for driving the lifting rod (230) to rise and fall. One end of the lifting rod (230) is vertically slidably connected to the frame (100), and the other end of the lifting rod (230) is connected to the mounting frame (200). The control center (500) is electrically connected to the lifting component (240).

5. The container empty and overload misloading detection and warning device according to claim 3, characterized in that: The rotating frame (210) is connected to the mounting frame (200) via a quick-release mechanism. The quick-release mechanism includes a card seat (280) fixed on the mounting frame (200) and a buckle (290) movably connected to the rotating frame (210). The buckle (290) is adapted to the card seat (280).

6. The container empty and overload misloading detection and warning device according to claim 1, characterized in that: It also includes a protective component (700), which includes a protective cover (710) that is detachably connected to the mounting bracket (200) and encloses the camera unit (310) inside. The protective cover (710) has an observation window along the orientation of the camera unit (310), and a sunshade is provided on the upper side of the protective cover (710) and the sunshade is connected above the observation window.

7. The container empty / weight misloading detection and early warning device according to claim 6, characterized in that: Inside the protective cover (710), on the side facing away from the camera unit (310), there is a blower (720) and a heater (730), and the blower (720) faces the same direction as the camera unit (310).

8. The container empty-load-misloading detection and early warning device according to claim 4, characterized in that: The detection component (300) also includes a distance sensor (330) and a height sensor (340) disposed on the side of the camera unit (310). The distance sensor (330) and the height sensor (340) are both connected to the frame (100) and are electrically connected to the control center (500). The control center (500) receives the detection data from the distance sensor (330) and the height sensor (340) and controls the first motor (220) and the lifting component (240) to work.

9. The container empty and overload misloading detection and warning device according to claim 1, characterized in that: A sunken installation pit (323) is provided on the ground around the weighing platform (321). The weighing platform (321) is embedded in the installation pit (323). The upper surface of the weighing platform (321) is flush with the ground. An elastic sealing strip (324) is filled between the inner wall of the installation pit (323) and the side of the weighing platform (321).

Images