Vehicle Door Authentication Using Facial Recognition Wake-Up Control

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Solution Overview

Problem

Conventional vehicle authentication systems lack efficient mechanisms to securely authenticate users and control vehicle access, leading to potential theft when a remote control device is left inside a vehicle.

Innovation Solution

An authentication device equipped with a facial recognition processor and communication module that recognizes user approaches, performs authentication, and controls door locking/unlocking and alarm outputs based on the authentication result, using signal strength to manage power states and communication modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the facial recognition processor is continuously operated to ensure rapid user authentication, then the authentication speed is improved, but the power consumption increases

Engineering Contradiction:

Improveauthentication speedVSAvoidpower consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The facial recognition processor dynamically switches between wake-up mode and sleep mode based on detected user presence. When a user approaches (detected via communication module signal), the processor transitions from sleep to wake-up mode, enabling rapid authentication only when needed. This dynamic state change resolves the contradiction by maintaining fast authentication capability on-demand while consuming minimal power during idle periods.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system employs periodic user presence detection through the communication module to trigger authentication operations. Instead of continuous operation, the facial recognition processor is activated periodically when user presence is detected, allowing it to enter sleep mode between activations. This periodic action pattern maintains authentication readiness while significantly reducing overall power consumption.

Inventive Principle:

Principle #19Periodic action

2Loss of energy

If the facial recognition processor is placed in sleep mode to reduce power consumption, then the power saving is improved, but the authentication response time increases

Engineering Contradiction:

Improvepower savingVSAvoidauthentication response time

Core Design Contradiction:

Loss of energyVSLoss of time

Solution Approach 1:

The communication module continuously monitors for user presence in advance before authentication is actually needed. When a user approaches, the system preliminarily activates the facial recognition processor from sleep mode, so that by the time authentication is required, the processor is already awake and ready. This preliminary action eliminates the time penalty that would otherwise result from waking the processor from sleep mode at the moment authentication is needed.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If the authentication system continuously monitors user presence to enable seamless authentication, then the user convenience is improved, but the power consumption increases

Engineering Contradiction:

Improveuser convenienceVSAvoidpower consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The communication module serves as an intermediary between the user and the facial recognition processor. It continuously monitors user presence with low power consumption and acts as a trigger mechanism. When the user approaches (detected by the communication module), this intermediary activates the high-power facial recognition processor only when needed. This intermediary approach enables seamless, convenient authentication while maintaining low overall power consumption by keeping the main processor in sleep mode during idle periods.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Enhances security by ensuring secure user authentication and reducing power consumption, while allowing seamless locking/unlocking operations and preventing vehicle theft through efficient alarm output management.

Implementation Method 1

obtain distance information with the external device based on a received signal strength of a signal received by the communication module

Methodology Applied

Scientific EffectReceived signal strength indication (RSSI):

Implementation Method 2

a facial recognition processor configured to recognize a face from image information obtained by a camera

Methodology Applied

Scientific EffectOptical imaging:

Data Source

PatentUS11878653B2Authentication device and vehicle having the same

Publication Date: 2024.01.23 HYUNDAI MOTOR CO LTD

AI summary

A vehicle including a locking member configured to lock and unlock a door of the vehicle, a manipulation member provided on a handle of the door, a camera configured to obtain an image, a communicator configured to communicate with an external device, and a controller including a facial recognition processor configured to recognize a face based on image information obtained by the camera, and an authentication processor configured to perform a user authentication based on the face information, the controller being configured to obtain distance information of the external device based on a signal received by the communicator, transmit a booting instruction to the facial recognition processor based on the distance information, transmit a facial recognition instruction to the facial recognition processor based on the distance information after the booting is completed, and control operation of the locking member based on user authentication information and a manipulation signal.