Contactless Access Control via Trilateration and Imaging
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Solution Overview
Problem
Existing access control systems for people and vehicles are inefficient and uncomfortable, causing stress and impairing leisure time, as they often require physical barriers and extensive checks, leading to delays and high operational costs due to the need to verify valid access authorizations for the majority of users.
Innovation Solution
A method using a combination of reading devices and cameras to record and validate access authorizations on data carriers or mobile devices through trilateration and imaging techniques, allowing for contactless and efficient access control by determining the position of authorized individuals without physical barriers, using Bluetooth Low Energy or Ultra-WideBand standards for data transmission and 3D cameras for image analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control systems use physical barriers and extensive checks to verify access authorizations, then security and access control reliability are improved, but user convenience and access speed deteriorate, causing stress and delays
Solution Approach 1:
The patent replaces mechanical barriers (turnstiles, flap gates, vehicle barriers) with a contactless electronic verification system. Reading devices and cameras detect and validate access authorizations electronically, eliminating the need for physical blocking mechanisms while maintaining security. This substitution removes the mechanical constraint that caused user stress and delays.
Solution Approach 2:
The system performs preliminary detection and validation of access authorizations before any access decision is made. Reading devices and cameras continuously monitor and pre-validate credentials in the background, so that when a user approaches, the verification is already complete or nearly complete, eliminating waiting time and stress at the access point.
2Reliability
If access control systems check all users to identify fare dodgers or users with invalid access authorization, then security against unauthorized access is improved, but operational efficiency and productivity deteriorate due to the great deal of effort and delays
Solution Approach 1:
The system performs verification on all users (excessive action) through automated reading devices and cameras, but the actual blocking action is applied only when necessary (partial action). The contactless verification quickly identifies unauthorized users without requiring manual intervention for every individual, maintaining high security while preserving operational efficiency.
Solution Approach 2:
The access control system performs self-verification through automated reading devices and cameras that independently detect, validate, and process access authorizations without requiring operator intervention. This automation eliminates the manual effort and delays associated with checking every user, while maintaining comprehensive security verification.
3Reliability
If access control systems use physical barriers such as turnstiles or flap gates, then access control effectiveness is improved, but user comfort and leisure time enjoyment deteriorate due to the unpleasant presence of locks and stress
Solution Approach 1:
The patent eliminates mechanical barriers (turnstiles, flap gates) that cause user stress and discomfort by replacing them with contactless electronic verification. The system uses reading devices and cameras to validate access authorizations without physical blocking, removing the harmful psychological and physical effects of locks while maintaining access control effectiveness.
Solution Approach 2:
The system introduces an intermediary electronic verification process between the user and the access decision. Instead of direct mechanical blocking, reading devices and cameras act as intermediaries that detect, validate, and communicate access authorization status, eliminating the need for stressful physical barriers while preserving security effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach eliminates the need for physical barriers, enhances convenience, reduces stress, and improves operational efficiency by allowing real-time validation and tracking of authorized individuals, minimizing delays and costs while maintaining effective access control.
Implementation Method 1
by recording data carriers or mobile electronic devices on which valid access authorization or an ID clearly assigned valid access authorization is stored by at least three reading devices by trilateration or multilateration, the current position of the data carrier or the mobile electronic devices is determined
Implementation Method 2
by recording data carriers or mobile electronic devices on which valid access authorization or an ID clearly assigned valid access authorization is stored by at least three reading devices by trilateration or multilateration, the current position of the data carrier or the mobile electronic devices is determined
Implementation Method 3
using a second, imaging method, which is carried out parallel to the first method, using the cameras, the current Position of all persons present in the entrance area of the access control system is recorded
Data Source
Figure 1
AI summary
A method for controlling access authorizations through an access control system is proposed, in which, by means of a first method, the data carriers or mobile electronic devices on which a valid access authorization or an ID to which a valid access authorization is uniquely assigned is stored are detected, and the current position of the data carriers or mobile electronic devices is determined by trilateration or multilateration using at least three reading devices. In addition, by means of a second imaging method, which is carried out in parallel to the first method, the current position of all persons present in the entrance area of the access control system is detected using cameras. This spatially detects in real time the persons who have a valid access authorization and all persons present in the entrance area, so that an ID map and a people map are created.wherein the ID map corresponds to the spatial distribution of persons who have a valid access authorization and the people map corresponds to the spatial distribution of all persons in the entrance area of the access control system, wherein, as part of a "matching" of the ID map with the people map, an overlay map is created in which the persons who have a valid access authorization or ID stored on a data carrier or a mobile electronic device, to which at least one valid access authorization is uniquely assigned, and the persons without a valid access authorization are identified.