Construction of an Iris Access Control System at a Detention Center in Tianjin
Project Overview
With the rapid development of information and network technologies today, high and new technologies have not only improved productivity but also transformed people’s ways of thinking, working, and living. The strategic guideline of "strengthening police forces through technology" is profoundly changing the traditional working methods of law enforcement. The construction of access control systems in detention facilities is an essential foundation for realizing modernized detention management and ensuring detention facility security. Detention facilities are the primary places for detaining suspects and prisoners, so the construction of their security systems is a top priority. To effectively prevent and stop incidents such as escapes and prison riots, detention facility access control systems play a crucial role. By implementing strict restrictions and linked control over various entry-exit checkpoints inside detention facilities—such as second-door checkpoints, cell doors, and corridor doors—these access control systems enable the management of daily operations, including prisoner confinement and release periods, attendance tracking for detainees and on-duty police officers, and internal facility management. They inject a new concept of scientific management into detention area supervision, build a high-tech operational platform for various work aspects, and lay the groundwork for the detention facility’s management to reach a high and advanced level in the new century.
Demand Analysis
The second-door checkpoint and channel control system at the entrance and exit of the detention facility building are important components in the field of security technology and protection. Detention facilities need to build a high-security access control system with accurate identity verification to maintain order and implement standardized management of police officers and prisoners within the facility. The entire access control management system consists of three parts: the Information Collection and Registration Subsystem, the Second-Door Subsystem, and the Channel Access Control Subsystem. The Information Collection and Registration Subsystem is installed at the detention facility’s management center; the Second-Door Subsystem is distributed in the police officer and prisoner channels on the first floor of the detention facility building; and the Channel Access Control Subsystem is distributed at key checkpoints, corridor doors, and inter-floor channels on each floor.
Front-end devices shall be installed on channel doors. For areas using mechanical access control systems, door magnetic switches or alarm devices shall be installed, with functions such as location identification and automatic sound and light alarm display. For areas using electronic access control systems, functions such as personnel identification, location identification, automatic monitoring and recording, and system-controlled full opening, full closing, or partial opening/closing of door locks in emergency situations shall be available, with manual switches provided as backups. The system supports multi-door interlocking and anti-tailgating functions: when one of the two doors is open, the other door is prohibited from opening; the door to be opened can only be unlocked when the other door is closed. It supports the emergency double-opening function to facilitate personnel entry and exit in emergency situations (such as fires, gas leaks, etc.). It also supports the emergency double-closing function: if someone tailgates into the facility, both doors can be closed urgently, and they can only be opened after the normally closed state is canceled and confirmed. The system supports the duress card access function: in special circumstances, if a person uses a duress card or password to open the door, the door will open normally, but the central controller will issue a duress alarm with sound and light prompts. The access control system of the detention facility shall be equipped with two-way identity verification control. Detailed data of each entry and exit—including time, personnel, and door location—shall be recorded by the access control system, which also provides functions such as checking historical records and printing time reports.
Brief System Description
The system mainly realizes multi-level control over personnel entering and exiting the detention area. According to the entry sequence of personnel entering the detention facility building through the police officer channel and prisoner channel (AB-door system) at the first-floor second-door checkpoint, iris access control management systems are installed at the first-floor entrance/exit and corridors to control personnel entry and exit, greatly improving the overall security and management efficiency of the detention area. Detention facility managers uniformly collect and register information (including iris data) of police officers and detained prisoners, and assign access permissions. Multiple access methods are available, including CPU card, ID card, iris recognition, and password. For visitors and temporary personnel, temporary iris permissions can be registered and automatically deleted upon expiration. Meanwhile, the system can realize daily personnel entry/exit management, staff attendance management, and statistical analysis.
Topology Diagram
System Composition
The detention facility’s iris access control system mainly consists of three parts: the Registration and Collection Subsystem, the AB-Door Access Control Subsystem, and the Channel Access Control Subsystem.
System Process
Project System Features
The iris access control management system adopts non-contact identification and supports multiple access activation methods. It grants different entry and exit permissions to users for multi-level control, and equipment selection during system construction shall be based on the customer’s actual needs. Meanwhile, it implements access control over different areas, specific doors, and channels within the project. The iris access control system supports remote management, enabling functions such as data modification and security key verification. The access control system controller is connected to alarm output and fire-fighting linkage expansion interfaces, with fire alarm and emergency door opening functions: when a fire-fighting switch signal is received, all doors under the jurisdiction of the access control system controller will open automatically.
User Feedback
This system has realized the following functions: user information management, authorization management, equipment management, attendance management, real-time monitoring, dynamic tracking and monitoring, entry/exit record query, double-door interlocking, anti-passback management, and duress password input.
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