A multi-sensor coordinated intelligent rising barrier for pedestrians and vehicles to prevent them from being smashed.

Abstract

This utility model relates to a multi-sensor collaborative intelligent rising barrier for pedestrians and vehicles to prevent them from being smashed. It includes a rising barrier body, a rising pole connected to the body, several infrared sensors mounted on the rising pole, a camera located at the lower right end of the rising pole away from the body, a lidar sensor mounted on the top of the body, a control unit inside the body, another camera located at the upper center of the front of the body, an infrared sensor at the lower end of the body, and a speaker located at the bottom of the body, next to the infrared sensor. This utility model utilizes multi-sensor fusion technology (camera, infrared sensor, and lidar) to detect and identify objects in front of the rising barrier from multiple dimensions, overcoming the shortcomings of traditional rising barriers that lack or only carry a single sensor, thus greatly improving detection accuracy and reliability.

Description

Technical Field

[0001] This utility model belongs to the technical field of automatic lifting gates for parking lot entrances and exits, residential area entrances and exits, and toll station barriers, specifically relating to a multi-sensor coordinated intelligent lifting gate for pedestrians and vehicles to prevent being smashed. Background Technology

[0002] Currently, rising barriers are widely used in many places to control the passage of vehicles or pedestrians. However, traditional rising barriers have significant technical shortcomings: on the one hand, their functions are relatively simple, usually only possessing basic lifting functions, lacking the ability to monitor the surrounding environment in real time and make intelligent judgments; on the other hand, most traditional rising barriers use a single sensor (such as a ground loop coil, infrared sensor, or radar) for detection, and these single sensors have limitations. For example, ground loop coils have difficulty detecting non-metallic objects (such as wooden carts); infrared sensors are prone to misjudgment under direct sunlight or in adverse weather conditions (such as heavy rain, fog, etc.); radar has limited accuracy in detecting small objects at close range. These technical shortcomings prevent existing systems from comprehensively and accurately identifying pedestrians or vehicles below the rising barrier, especially during the lowering process, which can easily cause injury to pedestrians or vehicles below, posing a serious safety hazard. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems. This application proposes a multi-sensor collaborative intelligent lifting pole for pedestrians and vehicles to prevent them from being smashed. It is equipped with a camera, infrared sensor and lidar. The collaboration of multiple sensors enables all-round and multi-dimensional monitoring of the environment in the lifting area, which improves detection accuracy, enhances environmental adaptability and reduces the false judgment rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-sensor collaborative intelligent rising pole for pedestrians and vehicles to prevent being smashed, comprising a rising pole body, a rising pole connected to the rising pole body, the rising pole being equipped with several infrared sensors, a camera being provided at the lower right end of the rising pole away from the rising pole body; a lidar being provided at the top of the rising pole body, a control unit being provided inside the rising pole body, a camera being provided at the upper center of the front of the rising pole body, an infrared sensor being provided at the lower end of the rising pole body, and a speaker being provided at the bottom end of the rising pole body on one side of the infrared sensor.

[0005] Furthermore: the driving device includes a drive shaft, a motor connected to the drive shaft, and the lifting rod is connected to the lifting rod body through the drive shaft. The rotation of the motor controls the lifting and lowering of the lifting rod.

[0006] Furthermore, the control unit is connected to the infrared sensor, lidar, camera, and drive device, respectively.

[0007] Furthermore, the main body of the lifting rod is fixed to the ground by expansion bolts or welding.

[0008] Furthermore, the main body of the lifting rod is also equipped with a supplementary light.

[0009] Furthermore, the control unit is a PLC, with its input terminal receiving signals from infrared sensors, cameras, and lidar, and its output terminal connected to a drive device for sending commands and a speaker.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention utilizes multi-sensor fusion technology, combining cameras, infrared sensors, and lidar, to detect and identify objects in front of the lifting mast from multiple dimensions. This overcomes the shortcomings of traditional lifting masts that lack or only carry a single sensor, greatly improving the accuracy and reliability of detection.

[0012] Enhanced environmental adaptability: Different sensors have their advantages under different environmental conditions. The camera provides clear image information in good lighting conditions; the infrared sensor is sensitive to temperature changes and can still work effectively at night or in low-light environments; the lidar is unaffected by light, weather, or other factors and can stably acquire distance information of objects. Therefore, this invention integrates multiple sensors, enabling the intelligent anti-smashing lifting pole to maintain good working performance in various complex environments.

[0013] By analyzing data from multiple sensors, misjudgments caused by the failure or interference of a single sensor can be effectively reduced, significantly lowering the misjudgment rate and further improving the safety and stability of the anti-smashing system. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only for more clearly illustrating the technical solutions in the embodiments of this utility model or the prior art. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] In the diagram: 1-Lifting rod body, 2-Camera, 3-Infrared sensor, 4-Lifting rod, 5-LiDAR, 6-Control unit, 7-Speaker, 8-Drive device. Detailed Implementation

[0017] To enable those skilled in the art to better understand and implement the technical solution of this utility model, the present utility model will be further described below with reference to specific embodiments. However, the embodiments described are only for illustration and are not intended to limit the present utility model.

[0018] like Figure 1 The diagram shows a multi-sensor collaborative intelligent rising barrier for pedestrians and vehicles to prevent being smashed. It includes a rising barrier body 1 and a rising barrier 4 connected to the rising barrier body 1, with the two connected to form a "T" or "L" shape. The rising barrier 4 is connected to the rising barrier body 1 through a drive device 8. The drive device 8 includes a drive shaft and a motor connected to the drive shaft. The drive device 8 is connected to a control unit 6. The control unit 6 controls the motor to start, thereby controlling the raising and lowering of the rising barrier. The control unit 6 is also connected to an infrared sensor 3, a lidar 5, a camera 2, and a speaker 7.

[0019] The lifting pole 4 is equipped with several infrared sensors 3, which are evenly distributed according to the length of the lifting pole 4. When a pedestrian or vehicle enters the detection area, the infrared sensors 3 can quickly sense the presence of the object based on the temperature difference between the object and the sensor, and preliminarily determine the position and approximate range of the object, providing timely early warning information to the control unit 6. The lower end of the lifting pole body 1 is equipped with an infrared sensor 3 for detecting the passage of vehicles or pedestrians.

[0020] A camera 2 is provided at the lower right end of the lifting pole 4, away from the lifting pole body 1. The field of view covers the entire passage area below the lifting pole 4 and along the end of the pole from the outside to the inside. A camera 2 is also provided at the upper middle position in front of the lifting pole body 1. The field of view can cover the entire area in front of the lifting pole.

[0021] The main functions of camera 2 include: firstly, collecting image information of the passage area, using image recognition algorithms and combining it with the point cloud map generated by lidar 5 to identify and analyze the shape, outline, and other features of pedestrians and vehicles, thereby determining whether any object has entered the area. Simultaneously, camera 2, located directly in front of the main body 1 of the lifting barrier, works in conjunction with lidar 5 to accurately predict the current speed of vehicles or pedestrians about to enter the area through in-depth analysis, thus determining whether there is a risk of collision with the lifting barrier 4. The installation of camera 2 also provides effective and crucial evidence in the event of an accident, protecting the legitimate rights and interests of personnel.

[0022] The top of the lifting pole body 1 is equipped with a lidar 5. By emitting a laser beam and receiving reflected light, the lidar 5 accurately measures the distance between the lifting pole and surrounding objects. The lidar 5 can acquire the three-dimensional coordinate information of the objects in real time and construct a point cloud map of the passage area. By combining the point cloud map with the image captured by the camera 2, the position, shape and movement trajectory of the objects can be accurately identified, providing comprehensive and accurate environmental perception information for the control unit 6.

[0023] The bottom of the lifting pole body 1 is equipped with a speaker 7 located on one side of the infrared sensor 3. When a potential danger is detected, it can emit an audible alarm to remind pedestrians and vehicles to pay attention to safety. The speaker 7 is a high-power horn with the characteristics of loud volume and clear sound quality, and can emit a loud enough sound to remind pedestrians and vehicles to pay attention to safety. The speaker 7 is connected to the control unit 6 through a power cord and a control line, and its working status is controlled by the control unit 6.

[0024] Preferably, the control unit is a PLC, with its input end connected to the infrared sensor 3, the lidar 5, and the camera 2 to receive the signals detected by them, and its output end connected to the motor and speaker 7 of the drive device 8 to send commands to them, so as to complete the lifting action of the lifting rod 4 and provide early warning.

[0025] Work process

[0026] 1. When a pedestrian or vehicle approaches from a distance and reaches a specific detection position, the camera can accurately and continuously identify the distance between it and the barrier gate, and collect its current status in real time. The camera then transmits the collected image information to the control unit. The control unit measures and predicts the speed based on the information collected by the camera, and infers the possibility of the pedestrian or vehicle colliding with the barrier gate based on the current speed. Simultaneously, an infrared sensor detects objects around the barrier gate in real time. Once an object enters its detection range, the infrared sensor quickly sends a signal to the control unit based on the temperature difference between the object and itself, clearly informing the control unit of the object's presence and providing the system with reliable early warning information. This further ensures the system's accurate perception and response to the area surrounding the barrier gate. The lidar continuously emits laser beams and receives reflected light, measuring the distance between the barrier gate and surrounding objects in real time. The lidar transmits the acquired object's three-dimensional coordinates and distance data to the control unit. Whenever a vehicle approaches the barrier gate to a certain distance, the lidar and camera work synchronously to measure and collect the vehicle's speed and acceleration information in real time. Based on this data, the system activates a three-level early warning mechanism:

[0027] (1) When the distance between the vehicle and the barrier gate is detected to be greater than 1.5m, a first-level warning is activated. The control unit controls the relevant warning devices on the road where the vehicle is located (such as speed bumps, warning lights, etc.) to prompt the vehicle to slow down and reduce the risk of collision. (2) When the distance is within the range of 0.5-1.5m, a second-level warning is activated. At this time, an audible and visual alarm is triggered. The speaker emits an alarm sound, and the relevant warning lights flash to remind pedestrians and vehicles to pay attention to potential dangers. (3) When the distance is less than 0.5m, a third-level warning is activated. The control unit immediately issues a command to the drive device, and the barrier gate performs an emergency braking operation. At the same time, the control unit controls the drive device to raise the barrier gate quickly to avoid a collision accident. If the control unit determines that the vehicle will not contact the barrier gate, the barrier gate will remain in a normal horizontal state.

[0028] When the boom is raised, the control unit will continuously monitor the passage area. When it detects that an object has left the danger zone, the control unit will control the boom to lower again according to preset rules to achieve normal passage control function. At this time, if the control unit detects no abnormality, the speaker will remain silent.

[0029] As the boom lowers, the camera continuously captures images of the boom from the outside in and the passageway below, transmitting the image data to the control unit. Furthermore, in cases where two people enter consecutively—for example, if the first person has already entered and the second follows immediately as the boom lowers—infrared sensors evenly distributed throughout the boom scan the passageway to prevent injury. Simultaneously, the camera uses image recognition algorithms to identify and analyze objects in the images, determining if pedestrians or vehicles have entered the danger zone. If an object is detected, the boom immediately raises to ensure the safety of people and vehicles. During this process, if an early warning mechanism is involved, it operates according to the three-level warning system.

[0030] The control unit uses a PLC to receive data from the camera, infrared sensor, and lidar. It then performs comprehensive analysis and processing on this data using a fusion algorithm. The control unit weights and fuses the data based on the characteristics of different sensors to improve the accuracy of the detection results. For example, in good lighting conditions, the weight of the camera data is appropriately increased; at night or in adverse weather conditions, the weight of the infrared sensor and lidar data is increased.

[0031] If the control unit determines through fusion analysis that a pedestrian or vehicle is in a dangerous area under the boom, it immediately sends a command to the drive unit. Upon receiving the command, the drive unit stops the boom's descent or raises it again if it has already been lowered, thus preventing injuries from falling objects. Simultaneously, the control unit sends a command to the speaker, which then emits an alarm or a preset voice prompt, such as "Danger, there is an object under the boom, please leave immediately," alerting nearby pedestrians or vehicles to be aware of the danger.

[0032] This invention combines cameras, infrared sensors, lidar, and speakers to achieve comprehensive and high-precision detection of pedestrians and vehicles below the lifting pole, effectively preventing accidents caused by falling objects and ensuring the safety of people and vehicles.

[0033] All content not described in detail in this utility model is prior art.

[0034] The above description is merely a preferred embodiment of this utility model and is not limited to the description in the specification and embodiments. Therefore, all equivalent changes or modifications made to the structure, features, and principles described in the claims of this utility model should be included within the scope of this utility model patent application.

Claims

1. A multi-sensor collaborative pedestrian and vehicle anti-collision intelligent lifting gate, comprising a drive device (8), a lifting gate body (1), and a lifting gate (4) connected to the lifting gate body (1), characterized in that: The lifting rod (4) is equipped with several infrared sensors (3), and a camera (2) is provided at the lower right end of the lifting rod (4) away from the lifting rod body (1); a laser radar (5) is provided at the top of the lifting rod body (1), a control unit (6) is provided inside the lifting rod body (1), a camera (2) is also provided at the upper middle position in front of the lifting rod body (1), an infrared sensor (3) is provided at the lower end of the lifting rod body (1), and a speaker (7) is provided at the bottom end of the lifting rod body (1) on one side of the infrared sensor (3).

2. The intelligent rising barrier for pedestrians and vehicles with multi-sensor collaboration as described in claim 1, characterized in that: The drive device (8) includes a drive shaft and a motor connected to the drive shaft. The lifting rod (4) is connected to the lifting rod body (1) through the drive shaft. The rotation of the motor controls the lifting of the lifting rod (4).

3. The intelligent rising barrier for pedestrians and vehicles with multi-sensor collaboration as described in claim 1, characterized in that: The control unit (6) is connected to the infrared sensor (3), the lidar (5), the camera (2), the drive device (8), and the speaker (7), respectively.

4. The intelligent rising barrier for pedestrians and vehicles with multi-sensor collaboration as described in claim 1, characterized in that: The main body (1) of the lifting pole is fixed to the ground by means of expansion bolts or welding.

5. The intelligent rising barrier for pedestrians and vehicles with multi-sensor collaboration as described in claim 1, characterized in that: The main body (1) of the lifting rod is also equipped with a supplementary light on the front.

6. A multi-sensor collaborative intelligent rising barrier for pedestrians and vehicles to prevent falling, as described in any one of claims 1 to 5, characterized in that: The control unit (6) is a PLC. Its input end receives signals from the infrared sensor (3), camera (2), and lidar (5), and its output end is connected to the drive device (8) and speaker (7) for sending instructions.

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