Nonlinear Access Control Structure for Tailgating Prevention
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Solution Overview
Problem
Existing access control systems for zones like jobsites lack effective mechanisms to prevent unauthorized entry and exit, particularly through tailgating, while ensuring efficient and secure movement of authorized assets.
Innovation Solution
An access control structure with non-linear through paths, integrated blocking structures, and communication systems using access readers and sensors to verify asset authorization, coupled with a controller for real-time management of access points, enhancing security and tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional access control systems are used, then basic access control is provided, but they fail to prevent tailgating and unauthorized entry effectively
Solution Approach 1:
The access control system divides the access path into multiple segments with individual blocking structures (doors, gates, or barriers) at each segment. Each segment can be independently controlled to block or permit passage, enabling the system to detect and prevent tailgating by controlling each segment sequentially rather than allowing open access throughout the entire path.
Solution Approach 2:
The system incorporates sensors and controllers that provide real-time feedback on access attempts. When an authorized asset passes through a blocking structure, the controller receives feedback and automatically actuates subsequent blocking structures to permit passage. If unauthorized assets are detected or tailgating is attempted, the feedback mechanism triggers blocking structures to close, preventing unauthorized entry.
2Reliability
If access control structures slow down assets to prevent tailgating, then security improves, but access efficiency decreases
Solution Approach 1:
The blocking structures are designed to be dynamic rather than static, automatically transitioning between blocked and unblocked states based on real-time conditions. When authorized assets are detected, the system dynamically opens subsequent blocking structures to maintain smooth flow. When threats are detected, the system dynamically closes structures to prevent tailgating, thus adapting security measures to actual needs rather than maintaining constant slow-down conditions.
Solution Approach 2:
The access control system operates autonomously using sensors and controllers to self-regulate access points. The system automatically detects authorized assets, actuates blocking structures to permit passage, and responds to unauthorized attempts without requiring manual intervention. This self-service capability maintains security while minimizing delays by automatically restoring access flow when conditions permit.
3Reliability
If multiple blocking structures are deployed throughout the access path, then unauthorized access is prevented, but the complexity of the system increases
Solution Approach 1:
The blocking structures serve multiple functions: they act as physical barriers to prevent unauthorized entry, function as sensors to detect asset presence and authorization status, and serve as actuators to control access flow. By making each component multi-functional, the system reduces the need for separate dedicated components, thereby managing complexity while maintaining comprehensive security.
Solution Approach 2:
The system merges the functions of access control, detection, and blocking into integrated components. The blocking structures combine mechanical barrier functions with sensor capabilities and automated control in single units, reducing the number of separate components needed throughout the access path and simplifying the overall system architecture while maintaining effective unauthorized access prevention.
Data Source
AI summary
An access control system is provided with an access control structure. The access control structure is operable to control access to a zone. A housing forms one or more through paths, and a dividing wall received in the housing is configured such that each through path is non-linear.