A campus student access management access control device
By integrating weight sensors and image sensors into the campus access control system, the spacing between turnstiles is automatically adjusted, solving the problem of students carrying large items and achieving a safe and efficient passage experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING COLLEGE OF ELECTRONICS ENG
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-19
AI Technical Summary
Existing campus access control systems are ill-suited to handling students carrying large items, which can lead to students getting stuck and items becoming obstructed, increasing the risk of obstruction.
By combining weight sensors and image sensors, the system automatically adjusts the gate spacing based on the weight and size of students and their belongings, enabling intelligent judgment and adaptation to different passage requirements.
It improves the safety and efficiency of passage, prevents students from getting stuck with their belongings, and enhances the reliability and ease of maintenance of the equipment.
Smart Images

Figure CN224383729U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of campus management equipment technology, specifically to an access control device for managing student access to and from a campus. Background Technology
[0002] With the improvement of campus security management, more and more schools are installing intelligent access control systems at entrances and exits to effectively identify and control student access. Existing campus access control devices are mostly based on identity verification methods such as facial recognition, card swiping, and QR codes, controlling the opening and closing of the gates after identity verification is completed.
[0003] While these devices can perform basic access control functions, conventional turnstiles often use a fixed structure with narrow spacing. When dealing with students carrying large items (such as sports equipment, bags, etc.), they are difficult to adapt to the passage needs of students carrying large items, which can easily lead to obstruction between students and their items, increasing the risk of passage. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides an access control device for campus student access management.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] An access control device for managing student access on campus includes:
[0007] The first and second turnstiles work together to identify students’ entry and exit information. The front of the entrance of the first and second turnstiles has a load-bearing plate, and the bottom of the load-bearing plate has a weight sensor to detect the load-bearing condition of the load-bearing plate, which is used to determine whether a student needs to use the first and second turnstiles. The second turnstile can move relative to the first turnstile.
[0008] A fixed plate is located on the side of the second gate away from the first gate, and its side facing the second gate has a linear drive for controlling the movement of the second gate and an image sensor for monitoring the size of students and their belongings.
[0009] The results from the weight sensor are used to trigger the image sensor to monitor the object. When the image sensor detects the object being carried, the second gate is moved by a linear actuator to adjust the distance between the first and second gates.
[0010] Preferably, the image sensor is positioned facing the load-bearing plate.
[0011] Preferably, the linear drive unit is configured as a plurality of such units, and the plurality of such linear drive units are arranged in a linear array along the vertical direction. The image sensor is located between two of the linear drive units, and the projection of the linear drive unit in the vertical direction covers the end of the image sensor.
[0012] Preferably, the linear drive component is a telescopic rod.
[0013] Preferably, the movable distance of the second gate relative to the first gate is 200mm-500mm.
[0014] Preferably, the bottom of the second gate has casters to facilitate its movement.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. By setting a load-bearing plate at the front of the gate and combining it with a weight sensor, an image sensor, and a movable second gate structure, the system can intelligently determine whether students are carrying large items and can automatically adjust the gate spacing. This allows the system to flexibly adapt to the passage requirements of different sizes, avoid students getting stuck with their items, and improve the safety and throughput of passage.
[0017] 2. The image sensor is embedded among multiple linear drive components. The linear drive components adopt a telescopic rod structure and are equipped with moving wheels, which enables the second gate to slide smoothly. The overall structure is compact and the movement is reliable. It not only ensures the spatial stability of the image recognition area, but also enhances the load-bearing capacity and anti-interference ability of the gate during movement, thereby improving the reliability of equipment operation and the convenience of maintenance. Attached Figure Description
[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0019] Figure 1 This is a schematic diagram of the access control system for student access management on campus.
[0020] Figure 2 for Figure 1 A structural diagram from a second perspective;
[0021] Figure 3 for Figure 1 A diagram of one side.
[0022] Explanation of annotations in the image:
[0023] 1. First turnstile; 11. Load-bearing plate;
[0024] 2. Second turnstile; 21. Casters;
[0025] 3. Fixing plate; 31. Telescopic pole; 32. Image sensor. Detailed Implementation
[0026] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0027] Example
[0028] like Figures 1-3 As shown, a campus student access control device includes a first gate 1, a second gate 2, and a fixing plate 3 that cooperate with each other.
[0029] In one embodiment, such as Figures 1-3 As shown, the first turnstile 1 and the second turnstile 2 work together to identify students' entry and exit information. A load-bearing plate 11 is located at the front of the entrance to both the first turnstile 1 and the second turnstile 2. A weight sensor is located at the bottom of the load-bearing plate 11 to detect the weight-bearing capacity of the plate, determining whether a student needs to use the first turnstile 1 or the second turnstile 2, and monitoring the weight of students standing on the load-bearing plate 11 and their belongings in real time. The second turnstile 2 is movable relative to the first turnstile 1.
[0030] In one embodiment, such as Figures 1-3 As shown, the fixing plate 3 is located on the side of the second gate 2 away from the first gate 1. The side of the fixing plate facing the second gate 2 has a linear drive for controlling the movement of the second gate 2 and an image sensor 32 for monitoring the size of students and their belongings. The fixing plate 3 integrates a processor, which is electrically connected to the weight sensor and the image sensor 32. The output point is electrically connected to the telescopic rod 31. The signal processed by the processor is used to control the telescopic rod 31 to perform corresponding actions.
[0031] In one embodiment, such as Figures 1-3 As shown, the result of the weight sensor is used to trigger the image sensor 32 to monitor. When the image sensor 32 detects the object being carried, it moves the second gate 2 through the linear drive to adjust the distance between the first gate 1 and the second gate 2.
[0032] The system operation process is as follows:
[0033] The student stands on the load-bearing plate 11, and the weight sensor collects data;
[0034] If the weight is less than the first preset threshold, identity recognition will be performed directly and the gate will be opened to allow passage.
[0035] If the weight is within the preset judgment range, the image sensor 32 is triggered to detect whether the channel width needs to be adjusted.
[0036] If the weight exceeds the second threshold, for example, if there is obvious luggage or large items, then image recognition is not required, and the distance between the first gate 1 and the second gate 2 is directly increased.
[0037] The dual judgment mechanism of weight and image enables automatic judgment and response to the situation of students and their belongings; it avoids the waste of image recognition resources, reduces system load, improves passage efficiency, and enhances human-computer interaction experience and passage safety.
[0038] In one embodiment, such as Figures 1-2 As shown, the image sensor 32 is positioned towards the load-bearing plate 11 to capture a frontal image of the student standing on the load-bearing plate 11 and their belongings. The camera angle is optimized to facilitate the acquisition of key image information such as the volume, structure, and edges of the items directly in front of the student. Combined with the weight sensor, this forms a trigger-detection-recognition linkage chain, ensuring the accuracy and real-time performance of the judgment.
[0039] In one embodiment, such as Figures 1-2 As shown, several linear actuators are arranged in a linear array along the vertical direction. The image sensor 32 is located between two linear actuators, and the projection of the linear actuators in the vertical direction covers the end of the image sensor 32. The array arrangement of multiple actuators ensures uniform, stable, and reliable force distribution during the pushing and pulling process of the gate. The image sensor 32 is embedded between the actuators, effectively saving space and avoiding a bulky system. The projection of the actuators covering the end of the image sensor 32 forms a visual obstruction, which can prevent recognition interference caused by direct sunlight or human obstruction, and also protect the image sensor 32, reducing the force when external forces collide with the image sensor 32 and enhancing the stability of image recognition. This achieves structural integration and functional complementarity between the drive components and the recognition components, improving the overall system integration level. The linear actuator is a telescopic rod 31 or a cylinder drive. The telescopic rod 31 facilitates lateral adjustment of the gate in a limited space, has a compact structure, and is easy to maintain.
[0040] In one embodiment, such as Figures 1-3 As shown, the movable distance of the second gate 2 relative to the first gate 1 is 200mm-500mm, and the adjustment range covers the passage needs of common large items such as bags and musical instruments; to avoid students or their belongings from bumping into the gate and being obstructed due to insufficient spacing.
[0041] In one embodiment, such as Figures 1-2As shown, the second gate 2 has casters 21 at its bottom for easy movement, which, together with the telescopic rod 31, enables low-friction lateral movement. This ensures the stability and consistency of the gate during opening and closing, improving the overall reliability of the machine.
[0042] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A gate device for campus student access management, characterized by, include: The first gate (1) and the second gate (2) cooperate with each other to identify the student's entry and exit information. The front side of the entrance of the first gate (1) and the second gate (2) has a load-bearing plate (11). The bottom of the load-bearing plate (11) has a weight sensor to detect the load-bearing condition of the load-bearing plate (11) and to determine whether a student needs to use the first gate (1) and the second gate (2). The second gate (2) can move relative to the first gate (1). The fixed plate (3) is located on the side of the second gate (2) away from the first gate (1), and has a linear drive for controlling the movement of the second gate (2) and an image sensor (32) for monitoring the size of the student and their belongings on the side facing the second gate (2). The result of the weight sensor is used to trigger the image sensor (32) to monitor. When the image sensor (32) detects the object being carried, the second gate (2) is moved by the linear drive to adjust the distance between the first gate (1) and the second gate (2).
2. The access control device for campus student management according to claim 1, characterized in that: The image sensor (32) is positioned toward the load-bearing plate (11).
3. The access control device for campus student management according to claim 1, characterized in that: The linear drive is configured as a plurality of linear drive elements, and the plurality of linear drive elements are arranged in a linear array along the vertical direction. The image sensor (32) is located between two of the linear drive elements, and the projection of the linear drive elements in the vertical direction covers the end of the image sensor (32).
4. The access control device for campus student management according to claim 1, characterized in that: The linear drive component is a telescopic rod (31).
5. The access control device for campus student access management according to claim 1, characterized in that: The movable distance of the second gate (2) relative to the first gate (1) is 200mm-500mm.
6. The access control device for campus student management according to claim 1, wherein: The second gate (2) has wheels (21) at the bottom to facilitate its movement.