Barrier-Free Lock With Real-Time Credential Feedback

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Solution Overview

Problem

Existing barrier-free access control systems lack user-friendly mechanisms to ensure secure and efficient access control, particularly in high-traffic scenarios, where individuals may inadvertently bypass authentication without being detected.

Innovation Solution

An access control system with a barrier-free lock incorporating a display device, detection device, and image recording device that displays a real-time image of the user, prompts for credential presentation, and provides visual and auditory cues to ensure authentication, with optional camera tracking for security breaches.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a barrier-free lock system is implemented to allow free passage, then productivity and user convenience are improved, but security control and detection capability deteriorate

Engineering Contradiction:
ImprovethroughputVSAvoidsecurity control
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system continuously captures images of users and provides real-time feedback by displaying their image on a screen. When a credential is detected and validated, the system feedbacks an approval signal. When no credential is detected, it feedbacks an alarm signal, enabling automatic security monitoring without physical barriers.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces an image recording device and display device as intermediaries between the user and the security control system. The display device shows the user's image and credential status, acting as a mediator that communicates authentication state without requiring physical barriers or manual inspection.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Difficulty of detecting and measuring

If an inspector manually checks credentials in a barrier-free system, then security detection capability is improved, but device complexity and operational overhead increase

Engineering Contradiction:
Improvedetection capabilityVSAvoidsystem complexity
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

The system performs automatic credential detection and verification without requiring an inspector. The recording device automatically detects credentials, the access control device verifies them, and the display device communicates the result to the user, enabling the system to serve its own security function autonomously.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical/manual inspection process with an automated electronic system. Instead of an inspector manually checking credentials, the system uses recording devices to detect credentials, access control devices to verify them, and display devices to communicate results, substituting human action with automated electronic processes.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If real-time image display is implemented to address users personally, then security monitoring is improved, but ease of operation deteriorates due to user awareness

Engineering Contradiction:
Improvesecurity monitoringVSAvoiduser experience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system displays the user's image in real-time as a preliminary measure before credential verification completes. This preliminary action serves as a reminder to users to present their credentials, preventing unauthorized access before it can occur by creating immediate awareness of being monitored.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS20250336251A1Access control system with barrier-free access
Publication Date: 2025.10.30 INVENTIO AG
  • US20250336251A1 patent drawing
  • US20250336251A1 patent drawing

AI summary

A system for controlling access to a restricted-access zone in a building or on a site comprises an access control device and a barrier-free lock. The lock comprises a display device, a recording device and an image recording device. Operating the system comprises activating the display device to display image data of a person generated by the image recording device as a real-time image visible to the person. The image recording device generates the image data when the person is at the lock to enter the restricted-access zone. The access control device checks whether a valid credential is identified. If a valid credential is identified, an approval signal is generated by the access control device and the display device displays that access has been approved. If a valid credential is not identified, an alarm message is generated by the access control device and the display device displays the alarm.