Dual Access Control System for Vehicle Tailgating Prevention
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Solution Overview
Problem
Existing access control systems are vulnerable to unauthorized entry through 'tailgating' or 'piggybacking,' where an unauthorized individual enters a restricted area alongside an authorized entrant before the access control system can reset.
Innovation Solution
A dual access control system that includes a detection structure using sensors (such as cameras, weight sensors, or RFID) to identify and authorize vehicles entering a restricted area, and a determination structure to verify if additional objects are also attempting to enter with the authorized vehicle, activating protective measures if unauthorized entities are detected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single access control system is used to simplify the entry process, then the ease of operation is improved, but the security reliability deteriorates due to vulnerability to tailgating attacks
Solution Approach 1:
The access control system is divided into two independent detection structures: a first detection structure that identifies the primary vehicle and determines authorization, and a second detection structure that detects additional objects. This segmentation allows each structure to focus on specific detection tasks, maintaining operational simplicity while enhancing security through multiple layers of verification.
Solution Approach 2:
The second detection structure is configured to detect additional objects before they can enter the restricted area alongside the authorized vehicle. By performing this detection in advance, the system can prevent tailgating attacks before they occur, maintaining both ease of operation for authorized entries and high security reliability.
2Reliability
If dual access control detection structures are implemented to detect additional objects, then the security reliability is improved, but the device complexity increases
Solution Approach 1:
The second detection structure is designed with multi-functionality: it can detect additional objects, determine their authorization status, and trigger protective actions. By consolidating these functions into a single integrated structure rather than adding separate systems for each function, the patent reduces overall system complexity while maintaining high security reliability.
Solution Approach 2:
The patent combines the detection, determination, and protective action functions into an integrated dual-structure system where the first and second detection structures work together as a unified security mechanism. This merging approach reduces the number of separate components needed compared to implementing completely independent access control systems.
3Reliability
If the system monitors for additional objects to prevent tailgating, then the security reliability is improved, but the processing time increases
Solution Approach 1:
When the second detection structure detects an additional object, the system rapidly evaluates the situation and either permits or blocks access without unnecessary delays. For authorized vehicles without additional objects, the system quickly processes the entry request, minimizing processing time while maintaining security through the preliminary detection capability.
Solution Approach 2:
The continuous monitoring capability of the second detection structure allows the system to detect additional objects in advance, enabling proactive security decisions. This preliminary detection prevents last-minute processing delays and allows for smoother access control decisions, reducing overall processing time while enhancing security.
Data Source
AI summary
A method of operating a facility includes identifying, by a controller, a ground vehicle approaching a restricted access area, and determining, by the controller, if the identified ground vehicle is authorized to enter the restricted access area. The controller permits the identified ground vehicle to enter the restricted access area when the controller determines that the identified ground vehicle is authorized to enter the restricted access area. The controller determines if an object other than the identified ground vehicle is approaching the restricted access area with the identified ground vehicle, and activates protective action when the controller determines that the identified ground vehicle is not authorized to enter the restricted access area or that an object other than the permitted ground vehicle is approaching to enter the restricted access area with the permitted ground vehicle.