Adaptive Access Control for Multi-Door Areas

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Solution Overview

Problem

Access control systems require users to present credentials multiple times when moving between secured areas, which can be inconvenient and may lead to unauthorized access if doors are unlocked prematurely.

Innovation Solution

An adaptive access control system that detects user movement at a granted door, determines travel time based on user-specific data, and automatically unlocks subsequent doors without requiring re-presentation of credentials, using sensors and a control unit to manage door access and elevator operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users must present credentials at each door, then security is maintained, but user convenience deteriorates

Engineering Contradiction:

Improveuser convenienceVSAvoidsecurity

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary action by unlocking the second door in advance based on the user's travel time from the first door, so that when the user arrives, the door is already unlocked and ready for immediate access, eliminating the need for re-presentation of credentials

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from detecting user movement at the first door to dynamically determine and adjust the unlocking timing of the second door, creating a closed-loop system that adapts to actual user behavior patterns

Inventive Principle:

Principle #23Feedback

2Ease of operation

If doors are unlocked automatically based on travel time, then user convenience is improved, but the risk of unauthorized access increases

Engineering Contradiction:

Improveuser convenienceVSAvoidunauthorized access risk

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The access control system serves itself by automatically determining travel times based on stored user profile data and building layout information, eliminating the need for manual configuration while maintaining adaptive timing

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If travel time is determined adaptively, then access precision is improved, but system complexity increases

Engineering Contradiction:

Improveaccess timing precisionVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system changes parameters by dynamically adjusting travel time estimates based on detected user movement patterns, door locations, and time of day, allowing precise adaptive timing without requiring complex real-time calculations for each access event

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentEP2973439B1Adaptive access control for areas with multiple doors

Publication Date: 2019.11.27 INVENTIO AG

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AI summary

An access control system detects movement at a door to which a user has been granted access. A travel time is determined that describes how long the user is expected to need to travel between that door and another door in the area. After the travel time has elapsed, the other door is unlocked. Thus, the user can travel to and open the other door without having to present a credential for the other door.