Video anti-tailgating express gate machine

Abstract

The utility model discloses a kind of video anti-tailing fast pass gate machines, including two gate machine bodies, the adjacent side of two The rear gate and front gate of gate machine body are rotatably connected, the upper end of the gate machine body located in right side is fixedly connected with second camera, the front side of two The fixed block is fixedly connected with in gate machine body, the lower end of The fixed block located in right side is fixedly connected with motor mounting box, servo motor is installed in the motor mounting box, the output shaft end of servo motor penetrates fixed block and is fixedly connected with first camera. Through setting double camera dynamic monitoring, pressure sensor real-time response, adjustable pneumatic rod gate and other innovative structures, the accurate identification of personnel passing state, the effective interception of trailing behavior and the safety protection of passing process are realized, so as to solve many pain points of traditional gate machine body in nuclear power plant application, provide more reliable technical support for nuclear facility personnel access management.

Description

Technical Field

[0001] This utility model relates to the technical field of gate body, and in particular to a video anti-tailgating speed gate. Background Technology

[0002] In the highly demanding environment of nuclear power plants, personnel access control is a crucial element in ensuring the safe operation of nuclear facilities. A nuclear power plant contains multiple high-risk and sensitive areas, including the reactor area, radiation control area, and core equipment maintenance area. Access permissions to these areas are strictly defined. Any unauthorized entry could lead to serious consequences such as nuclear accidents, equipment damage, or radiation exposure. Therefore, precise control over personnel movement is of paramount importance.

[0003] Traditional speed gate systems are no longer adequate for the stringent safety management standards of nuclear power plants, primarily due to insufficient accuracy in anti-tailgating detection. Traditional gates often employ a single infrared sensor or simple mechanical structure, making it difficult to accurately detect close-range tailgating. If an unauthorized person follows closely after authorized personnel, detection delays or blind spots can easily lead to tailgating, posing a significant safety hazard.

[0004] Therefore, a video-based anti-tailgating speed gate is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a video-based anti-tailgating speed gate. Through innovative structures such as dual-camera dynamic monitoring, real-time pressure sensor sensing, and adjustable pneumatic boom gate, it achieves accurate identification of personnel passage status, effective interception of tailgating behavior, and safety protection during passage. This solves many pain points of traditional gate bodies in nuclear power plant applications and provides more reliable technical support for personnel access management in nuclear facilities.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A video-based anti-tailgating speed gate includes two gate bodies. A rear gate and a front gate are rotatably connected to adjacent sides of each gate body. A second camera is fixedly connected to the upper end of the gate body on the right. Fixing blocks are fixedly connected to the front sides of both gate bodies. A motor mounting box is fixedly connected to the lower end of the fixing block on the right. A servo motor is installed inside the motor mounting box. The output shaft of the servo motor passes through the fixing block and is fixedly connected to a first camera. Both the first and second cameras are tilted. An audible and visual alarm is installed on the upper end of the gate body on the left.

[0008] Preferably, a receiving block is embedded on the right side of the gate body located on the left side, and an infrared sensor is embedded on the left side of the gate body located on the right side.

[0009] Preferably, the two gate bodies are fixedly connected to a base plate on adjacent sides, and the base plate is provided with two indicator areas, each of which is equipped with a pressure sensor.

[0010] Preferably, the front side of the motor mounting box is provided with multiple heat dissipation holes.

[0011] Preferably, the front gate includes a front gate plate and a movable plate that are rotatably connected to the gate body. The movable plate has a movable groove on the side near the corresponding gate body. Two pneumatic rods are fixedly connected to the inner wall of the movable groove on the side away from the corresponding gate body. The side of the front gate plate away from the gate body extends into the movable groove, and the telescopic ends of the two pneumatic rods are fixedly connected to the front gate plate.

[0012] Preferably, the gate body is equipped with a controller with a PLC program, the first camera and the second camera are electrically connected to the controller via wires, and the pressure sensor and the receiving block are electrically connected to the controller via wires.

[0013] Compared with existing technologies, the advantages of this device are:

[0014] Compared with existing technologies, this device uses a dual-camera dynamic monitoring mechanism. The first camera on the oblique side can detect in advance whether the distance between people is too close. When a person enters the second area, the front gate closes and the first camera rotates backward, working with the second camera on the front to monitor the area behind the person and the front of the person respectively, forming a multi-dimensional, all-time monitoring closed loop. It can accurately identify the passage status of a single person and effectively prevent tailgating.

[0015] Compared to existing technologies, traditional turnstiles with fixed gate structures are prone to collisions with personnel due to detection errors when closing. This device uses a pressure sensor on the base plate to sense the position of personnel in real time. Combined with the design of the moving plate and pneumatic rod in the front gate, when the front gate rotates, the pneumatic rod directly retracts to its minimum value, driving the front gate plate back into the moving groove, avoiding collisions between the gate and personnel in the middle area, and effectively ensuring passage safety. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a video anti-tailgating speed gate proposed in this utility model;

[0017] Figure 2 for Figure 1 A structural diagram from another perspective;

[0018] Figure 3 This is an exploded view of the front gate.

[0019] In the diagram: 1. Gate body, 2. Rear gate, 3. Front gate plate, 4. Moving plate, 5. Fixing block, 6. Motor mounting box, 7. Heat dissipation hole, 8. Rotating rod, 9. First camera, 10. Second camera, 11. Infrared sensor, 12. Base plate, 13. Indication area, 14. Receiver block, 15. Pneumatic rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-3 A video-based anti-tailgating speed gate includes two gate bodies 1. A rear gate 2 and a front gate are rotatably connected to adjacent sides of each gate body 1. Each gate body 1 contains a drive assembly, which is a conventional gate drive assembly, controlling the rotation of the gates. The opening and closing of the passage is controlled by the opening and closing of the rear gate 2 and the front gate. A second camera 10 is fixedly connected to the upper end of the right-hand gate body 1. Fixing blocks 5 are fixedly connected to the front of both gate bodies 1. A motor mounting box 6 is fixedly connected to the lower end of the right-hand fixing block 5. The front of the motor mounting box 6 has multiple... A heat dissipation hole 7 is evenly spaced to dissipate the heat generated by the motor in a timely manner, preventing the motor from being affected by overheating and affecting its service life. A servo motor is installed in the motor mounting box 6. The output shaft of the servo motor passes through the fixing block 5 and is fixedly connected to the first camera 9. Both the first camera 9 and the second camera 10 are set at an angle. The first camera 9 is tilted towards the diagonally front of the entrance side of the channel, and the second camera 10 is tilted towards the inside of the channel. An audible and visual alarm is installed on the upper end of the gate body 1 on the left side. The audible and visual alarm can emit sound and light warnings when abnormal situations occur.

[0022] The right side of the gate body 1 on the left is equipped with a receiving block 14, and the left side of the gate body 1 on the right is equipped with an infrared sensor 11. The infrared sensor 11 can emit infrared signals, and the receiving block 14 is used to receive infrared signals. Whether or not the infrared signals are blocked can detect whether there are people in the channel.

[0023] The two gate bodies 1 are fixedly connected to a base plate 12 on their adjacent sides. The base plate 12 has two indicator areas 13, which are distributed at intervals along the length of the passage, corresponding to the positions where a person stands with both feet. Pressure sensors are installed in both indicator areas 13. The pressure sensors are flush with the upper surface of the base plate 12 and can sense the pressure generated by the person stepping on them. The gate body 1 is equipped with a controller with a PLC program. The controller is the control core of the entire gate body 1. The first camera 9 and the second camera 10 are electrically connected to the controller through wires, and can transmit the captured image information to the controller for processing and analysis. The pressure sensor and the receiving block 14 are electrically connected to the controller through wires, and can transmit the detected signals to the controller in real time.

[0024] The front gate includes a front gate plate 3 and a movable plate 4 that are rotatably connected to the gate body 1. The movable plate 4 has a movable groove on the side close to the corresponding gate body 1. Two pneumatic rods 15 are fixedly connected to the inner wall of the movable groove on the side away from the corresponding gate body 1. The side of the front gate plate 3 away from the gate body 1 extends into the movable groove, and the telescopic ends of the two pneumatic rods 15 are fixedly connected to the front gate plate 3.

[0025] The functional principle of this utility model can be explained through the following operation: When a person is about to pass through the gate body 1, the first camera 9, which is set on the oblique side, first starts monitoring to capture the status of the person in the area to be passed in real time, focusing on detecting whether there is a suspected tailgating situation where two people are too close together. If the first camera 9 does not detect any abnormality, and the person passes the facial recognition verification, the controller will automatically control the pneumatic rod 15 in the front gate to retract, driving the front gate plate 3 to retract into the moving groove, and at the same time the front gate opens, allowing the person to enter the passage area.

[0026] When a person steps into the first foot-standing indicator area 13 of the base plate 12 and then steps into the second foot-standing indicator area 13, the pressure sensors in both indicator areas 13 are triggered and generate electrical signals. These signals are transmitted to the controller with a PLC program inside the gate body 1. Upon receiving the signal, the controller determines that the person has fully entered the central passage area and then controls the drive components to operate, closing the front gate to prevent subsequent personnel from following. During the closing process of the front gate, the controller synchronously instructs the servo motor in the motor mounting box 6 to start, causing the first camera 9 to rotate backward to monitor the area behind the person. Simultaneously, the second camera 10 in front starts, focusing on detecting the person's face. The two cameras cross-verify from different angles, further accurately confirming that the current passage area is for a single person, effectively preventing tailgating.

[0027] After the gate is fully closed and reset, the controller controls the two pneumatic rods 15 to extend, causing the two moving plates 4 to reset. Once it is confirmed that personnel have passed safely and there are no abnormalities, the controller controls the rear gate 2 to open via facial recognition through the second camera 10, allowing personnel to leave the passage area and completing a full passage process. Throughout the process, if unauthorized entry, tailgating, or other abnormalities occur, the controller will trigger the audible and visual alarm on the left gate body 1 to issue a warning, promptly alerting management personnel to handle the situation.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A video-based anti-tailgating speed gate, comprising two gate bodies (1), characterized in that: The two gate bodies (1) are rotatably connected to a rear gate (2) and a front gate on adjacent sides. The upper end of the gate body (1) on the right side is fixedly connected to a second camera (10). The front sides of the two gate bodies (1) are fixedly connected to a fixing block (5). The lower end of the fixing block (5) on the right side is fixedly connected to a motor mounting box (6). A servo motor is installed in the motor mounting box (6). The output shaft of the servo motor passes through the fixing block (5) and is fixedly connected to a first camera (9). The first camera (9) and the second camera (10) are both tilted. An audible and visual alarm is installed on the upper end of the gate body (1) on the left side.

2. The video anti-tailgating speed gate according to claim 1, characterized in that: A receiving block (14) is embedded on the right side of the gate body (1) located on the left side, and an infrared sensor (11) is embedded on the left side of the gate body (1) located on the right side.

3. A video anti-tailgating speed gate according to claim 2, characterized in that: The two gate bodies (1) are fixedly connected to a base plate (12) on adjacent sides. The base plate (12) is provided with two indicator areas (13), and pressure sensors are installed in both indicator areas (13).

4. A video-based anti-tailgating speed gate as described in claim 1, characterized in that: The front side of the motor mounting box (6) is provided with multiple heat dissipation holes (7).

5. A video anti-tailgating speed gate according to claim 1, characterized in that: The front gate includes a front gate plate (3) and a movable plate (4) rotatably connected to the gate body (1). The movable plate (4) has a movable groove on the side close to the corresponding gate body (1). Two pneumatic rods (15) are fixedly connected to the inner wall of the movable groove on the side away from the corresponding gate body (1). The front gate plate (3) extends into the movable groove on the side away from the gate body (1). The telescopic ends of the two pneumatic rods (15) are fixedly connected to the front gate plate (3).

6. A video anti-tailgating speed gate according to claim 3, characterized in that: The gate body (1) is equipped with a controller with a PLC program. The first camera (9) and the second camera (10) are electrically connected to the controller via wires. The pressure sensor and the receiving block (14) are electrically connected to the controller via wires.

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