Urban rail face recognition access control system based on three-control two-pipe layered distributed architecture
The urban rail transit facial recognition access control system, based on a three-control, two-management, hierarchical distributed architecture, solves the problems of data transmission delay and recognition accuracy in facial recognition systems in urban rail transit. It achieves efficient and secure identity verification and management, improves system stability and recognition accuracy, and has emergency door opening and fire linkage functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY ELECTRIFICATION SURVEY DESIGN & RES INST
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-14
AI Technical Summary
Existing facial recognition access control systems in urban rail transit scenarios suffer from data transmission delays and recognition accuracy issues due to environmental factors. Traditional card swiping and password verification methods also pose security risks.
The urban rail transit facial recognition access control system adopts a three-control, two-management, layered distributed architecture, including central, station, and field-level systems. It utilizes facial recognition modules, TCP/IP protocols, and fire alarm linkage interfaces, combined with RFID/NFC modules and automatic release locks in the event of power failure, to achieve efficient and secure identity verification and management.
It improves the safety and convenience of urban rail transit, ensures system stability and recognition accuracy, has emergency door opening function and fire linkage capability, and optimizes management mode and user experience.
Smart Images

Figure CN224501308U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of urban rail transit access control system, specifically relating to an urban rail face recognition access control system based on a three-control, two-pipe hierarchical distributed architecture. Background Technology
[0002] With the acceleration of urbanization, urban rail transit has become an indispensable mode of transportation in modern cities. To ensure the safe and efficient operation of urban rail transit, identity verification and access control are particularly important. Traditional access control systems mainly rely on methods such as card swiping and passwords for identity verification, but these methods have certain security risks, such as lost cards and leaked passwords.
[0003] In recent years, facial recognition technology has made significant progress in the field of computer vision and has been widely applied in finance, security, smart homes, and other areas. However, existing facial recognition access control systems still have certain limitations when dealing with large-scale urban rail transit scenarios, such as data transmission latency and recognition accuracy being affected by the environment. Therefore, designing an access control system based on facial recognition technology for urban rail transit scenarios to improve the safety and convenience of urban rail transit is of significant practical importance. Utility Model Content
[0004] This invention addresses the shortcomings of existing technologies by providing a face recognition access control system for urban rail transit based on a three-control, two-pipe hierarchical distributed architecture, offering an efficient, safe, and convenient face recognition access control solution for urban rail transit.
[0005] This utility model achieves this objective through the following technical solution:
[0006] A city rail facial recognition access control system based on a three-control, two-management hierarchical distributed architecture, which consists of a central system, a station-level system, and a field-level system;
[0007] The central-level system includes a central authorization workstation, a system management workstation, an access control system server, and an access control switch. The central authorization workstation is connected to both the system management workstation and the access control switch. The access control system server is connected to the access control switch.
[0008] The station-level system includes an aggregation switch and an access control workstation. The central-level access control switch is connected to the station-level aggregation switch, and the aggregation switch is connected to the access control workstation.
[0009] The field-level system includes several local controllers and access control devices. Each local controller is connected to a face recognition module, an exit button, an emergency door opening button, and an electric lock. The face recognition module, exit button, emergency door opening button, and electric lock are installed on the access control device. The local controller is connected to the station-level aggregation switch.
[0010] Furthermore, the access control switch and the aggregation switch are connected via an Ethernet data transmission channel.
[0011] Furthermore, the various devices in the field system are connected using the TCP / IP protocol.
[0012] Furthermore, the aggregation switch is sequentially connected to the local controller and each of the local controllers via a communication ring network.
[0013] Furthermore, the central authorization workstation is connected to a printer and a desktop card writer.
[0014] Furthermore, the urban rail facial recognition access control system is equipped with an emergency door opening control button with manual and automatic switching functions on the integrated backup control panel in the station control room. The emergency door opening control button is connected to each of the local controllers.
[0015] Furthermore, the access control system server is connected to a fire alarm linkage interface.
[0016] Furthermore, the fire alarm linkage interface is connected to an automatic fire alarm system.
[0017] Furthermore, the access control device is equipped with an RFID reading module and / or an NFC module.
[0018] Furthermore, the electric lock has an automatic release function in the event of a power outage.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] 1. Enhanced security: Using facial recognition technology for access control can effectively prevent unauthorized entry and significantly improve the security of stations and important equipment.
[0021] 2. Enhanced stability: The system adopts a hierarchical distributed architecture, which improves system density and reliability. When a unit or node fails, it will not affect the operation of the entire system, ensuring system stability.
[0022] 3. Optimized Management: The system centrally monitors access control, which facilitates management. It also connects the site and equipment via TCP / IP protocol, resulting in high information sharing efficiency and greatly optimizing the management model.
[0023] 4. Emphasis on practicality: In addition to the most basic functions, the system is specially equipped with an emergency door opening function and a linkage function with the automatic fire alarm system, making it highly practical.
[0024] In summary, this invention provides a safe, efficient, easy-to-operate, and intelligent solution that significantly improves the overall performance of the access control system. By employing a three-control, two-pipe hierarchical distributed architecture to process system functions in a layered and distributed manner, it achieves efficient system operation and stability. In urban rail transit facial recognition access control systems, this three-control, two-pipe hierarchical distributed architecture can effectively improve system processing capabilities, reduce data transmission latency, and increase recognition accuracy, thereby achieving rapid and accurate identity recognition and enhancing the safety and convenience of urban rail transit. Attached Figure Description
[0025] Figure 1 A schematic diagram of a city rail facial recognition access control system based on a three-control, two-pipe hierarchical distributed architecture provided for an embodiment of this utility model;
[0026] The attached diagram is labeled as follows: 1-Central Authorization Workstation, 2-System Management Workstation, 3-Access Control Switch, 4-Access Control System Server, 5-Aggregation Switch, 6-Access Control Workstation, 7-Local Controller, 8-Face Recognition Module, 9-Exit Button, 10-Emergency Door Opening Button, 11-Electric Lock, 12-Printer, 13-Desktop Time Card Reader, 14-Fire Protection Linkage Interface. Detailed Implementation
[0027] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art. It should be noted that, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] like Figure 1 As shown, this utility model provides an embodiment of a city rail facial recognition access control system based on a three-control, two-management, hierarchical distributed architecture. The system consists of a central system, a station-level system, and a field-level system, realizing centralized monitoring and management of some station access channels, important equipment, and management room entrances and exits.
[0029] The central-level system includes a central authorization workstation 1, a printer 12, a desktop card writer 13, a system management workstation 2, a fire alarm linkage interface 14, an access control system server 4, and an access control switch 3. The central authorization workstation 1 is connected to the printer 12, the desktop card writer 13, the system management workstation 2, and the access control switch 3, respectively. The access control system server 4 is connected to the fire alarm linkage interface 14 and the access control switch 3, respectively.
[0030] The station-level system includes aggregation switch 5 and access control workstation 6. The central access control switch 3 is connected to the station-level aggregation switch 2 through a 100Mbps Ethernet shared transmission channel provided by the communications department. The aggregation switch 2 is connected to the access control workstation 6.
[0031] The field-level system includes several local controllers 7 and access control devices. Each local controller 7 is connected to a facial recognition module 8, an exit button 9, an emergency door opening button 10, and an electric lock 11 installed within the access control device. The selected electric lock 11 should meet the requirements for anti-collision and fire evacuation, and have an automatic release function in case of power failure. Each local controller 7 is connected to the station-level aggregation switch 5 via a field-level communication ring network. The devices in the field-level system are connected using the TCP / IP protocol.
[0032] The station-level system has an emergency door opening control button with manual and automatic switching functions on the integrated backup control panel (IBP) in the station control room. This emergency door opening control button is connected to each local controller 7.
[0033] The fire alarm linkage interface 14 is linked with the automatic fire alarm system. In the event of a fire, the system can receive the signal from the automatic fire alarm system and unlock the door.
[0034] At the system's central level, a separate system management workstation is set up to achieve centralized management and operation of the system, and can automatically recognize faces from different directions. Staff members verify their identity through the system management workstation. The workstation uses high-precision facial recognition technology, automatically recognizing faces from different directions and under varying lighting conditions, improving accuracy and convenience.
[0035] In addition, the system has an error handling mechanism. When facial recognition fails, it will automatically re-identify or switch to a backup authentication method, including RFID card reading or NFC identification. This design increases security while also improving user experience.
[0036] Access control permissions for the system are all allocated by the centrally authorized workstation of the central-level system.
[0037] In emergencies, such as fires, the emergency door opening control button on the IBP will be activated. It has manual and automatic switching functions, allowing users to switch operating modes according to actual needs. When the manual function is selected, the emergency door opening button 10 located on the access control device needs to be pressed manually to release the electric lock 11. When the automatic function is selected, all access control devices will automatically release the electric lock 11 to ensure safe evacuation.
[0038] Through the above design, this utility model constructs a hierarchical access control system with a reasonable structure, simple operation, and wide application. This system not only effectively manages and controls personnel access, reducing security risks, but also has good scalability and maintainability, adapting to future development needs. At the same time, it also protects user privacy as much as possible, providing a safe and convenient urban rail transit environment.
[0039] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a communication connection or a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A face recognition access control system for urban rail transit based on a three-control, two-pipe hierarchical distributed architecture, characterized in that, The system consists of a central-level system, a station-level system, and a field-level system; The central-level system includes a central authorization workstation, a system management workstation, an access control system server, and an access control switch. The central authorization workstation is connected to both the system management workstation and the access control switch. The access control system server is connected to the access control switch. The station-level system includes an aggregation switch and an access control workstation. The central-level access control switch is connected to the station-level aggregation switch, and the aggregation switch is connected to the access control workstation. The field-level system includes several local controllers and access control devices. Each local controller is connected to a face recognition module, an exit button, an emergency door opening button, and an electric lock. The face recognition module, exit button, emergency door opening button, and electric lock are installed on the access control device. The local controller is connected to the station-level aggregation switch.
2. The urban rail facial recognition access control system according to claim 1, characterized in that, The access control switch and the aggregation switch are connected via an Ethernet data transmission channel.
3. The urban rail facial recognition access control system according to claim 1, characterized in that, The devices in the field system are connected using the TCP / IP protocol.
4. The urban rail facial recognition access control system according to claim 1, characterized in that, The aggregation switch and the local controller, and each of the local controllers are sequentially connected via a communication ring network.
5. The urban rail facial recognition access control system according to claim 1, characterized in that, The central authorization workstation is connected to a printer and a desktop card writer.
6. The urban rail facial recognition access control system according to claim 1, characterized in that, The urban rail facial recognition access control system is equipped with an emergency door opening control button with manual and automatic switching functions on the integrated backup control panel in the station control room. The emergency door opening control button is connected to each of the local controllers.
7. The urban rail facial recognition access control system according to claim 1, characterized in that, The access control system server is connected to a fire alarm linkage interface.
8. The urban rail facial recognition access control system according to claim 7, characterized in that, The fire alarm linkage interface is connected to the automatic fire alarm system.
9. The urban rail facial recognition access control system according to claim 1, characterized in that, The access control device is equipped with an RFID reading module and / or an NFC module.
10. The urban rail facial recognition access control system according to claim 1, characterized in that, The electric lock has an automatic release function when power is cut off.