Door Operating Device Local Authentication Token Verification

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Solution Overview

Problem

Conventional access control systems are inefficient due to the need for separate authentication devices, inconvenience in carrying authentication means, and vulnerability when communication between control servers and devices is disrupted, leading to security and convenience issues.

Innovation Solution

An access control method where door operating devices determine door access based on authentication tokens from user terminals without relying on an authentication server, allowing for independent authorization and operation of multiple doors using a single authentication token.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If authentication is performed through a separate authentication device, then security is improved, but user convenience deteriorates and authentication time increases

Engineering Contradiction:

ImprovesecurityVSAvoiduser convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent merges the authentication device functionality directly into the door operating device. The door operating device includes an authentication unit that can perform authentication locally without requiring a separate authentication device, thereby maintaining security while improving user convenience and reducing authentication time.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The door operating device is designed to perform multiple functions including both door operation and authentication. This multi-functional design eliminates the need for separate authentication devices, allowing the same device to handle both security authentication and door control operations.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a separate authentication device is used, then authentication security is improved, but device complexity and inconvenience of carrying authentication means increases

Engineering Contradiction:

Improveauthentication securityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The authentication functionality is merged into the door operating device, eliminating the need for users to carry separate authentication devices. The door operating device integrates the authentication unit, credential storage, and door operation mechanisms into a single device, reducing overall system complexity and user burden.

Inventive Principle:

Principle #5Merging (Combining)

3Extent of automation

If authentication is performed through a control server, then centralized control is improved, but system reliability deteriorates when communication is disconnected

Engineering Contradiction:

Improvecentralized controlVSAvoidsystem reliability

Core Design Contradiction:

Extent of automationVSReliability

Solution Approach 1:

The door operating device stores authentication credentials and authentication information locally in advance. When communication with the control server is unavailable, the device can still perform authentication using the stored credentials, ensuring continuous operation and maintaining system reliability without requiring real-time centralized control.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system prepares authentication information and credentials in advance and stores them locally in the door operating device. This beforehand cushioning allows the system to function autonomously during communication outages, providing a backup mechanism that maintains reliability without sacrificing centralized control when communication is available.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

4Reliability

If multiple visitors need authentication, then security is improved, but authentication time increases

Engineering Contradiction:

ImprovesecurityVSAvoidauthentication time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The door operating device performs authentication locally using pre-stored credentials and authentication information. This eliminates the need for multiple visitors to wait for centralized server processing, allowing each visitor to be authenticated quickly and independently without increasing overall authentication time while maintaining security.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11651638B2Access control system and access control method using the same

Publication Date: 2023.05.16 SUPREMA INC

AI summary

Disclosed herein are an access control system and an access control method using the same. The access control method in which a door operating device determines whether to open a door on the basis of an authentication token acquired from a user terminal without intervention of an authentication server includes obtaining the authentication token from the user terminal; determining whether the user have authorization for accessing the door based on a authentication information included in the authentication token; controlling the door to be opened in case of determined that the user have authorization for accessing the door.