Vehicle Entry Control for Unregistered User Access

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Solution Overview

Problem

Conventional vehicle entry systems only allow registered users to access the vehicle, preventing passengers from entering even if they need to retrieve left belongings, which can cause inconvenience.

Innovation Solution

A vehicle control device that includes a user-candidate-face-image acquiring unit, an unregistered-user-getting-on recognizing unit, and a vehicle entry control unit, allowing unregistered users to enter the vehicle if the face recognition matching level meets a predetermined threshold, enabling temporary access for unlocking doors but not starting the vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If personal authentication is performed only for registered users, then vehicle security is maintained, but passengers cannot enter the vehicle to retrieve left belongings

Engineering Contradiction:
Improvevehicle entry accessibilityVSAvoidvehicle security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent segments the entry-enabled states into two distinct modes: a first entry-enabled state for unregistered users (passengers) that permits door unlocking but disables vehicle running, and a second entry-enabled state for registered users that permits both door unlocking and vehicle running. This segmentation allows differential access control based on user registration status, resolving the contradiction between accessibility and security.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by granting different levels of access rights to different user groups. Unregistered users receive limited access (door unlock only) while registered users receive full access (door unlock + vehicle operation). This localized differentiation of access quality enables passengers to enter for belongings retrieval while maintaining overall vehicle security through restricted operational capabilities.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If face recognition is used for unregistered users, then passenger access is enabled, but system complexity increases

Engineering Contradiction:
Improveuser authentication flexibilityVSAvoidauthentication system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements universality by making the face recognition system serve multiple functions: it authenticates both registered users (for full access) and unregistered users (for limited access). The same image acquiring unit and face recognition unit handle both user types, eliminating the need for separate authentication systems and reducing overall device complexity while maintaining authentication flexibility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent uses face recognition as an intermediary mechanism that bridges the gap between registered and unregistered user authentication. Instead of creating separate complex systems for each user type, the face recognition intermediary provides a unified approach that can identify and differentiate user categories, enabling versatile access control without proportionally increasing system complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If unregistered users can enter the vehicle, then convenience for retrieving items is improved, but risk of unauthorized vehicle operation increases

Engineering Contradiction:
Improvepassenger access convenienceVSAvoidunauthorized vehicle operation risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary anti-action by preemptively disabling the vehicle running function when an unregistered user gains entry. The system anticipates the potential harm of unauthorized operation and prevents it in advance by controlling the running operation unit to prohibit vehicle operation during the first entry-enabled state, while still allowing door access for legitimate purposes like retrieving belongings.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The patent changes the operational parameters of the vehicle based on user authentication status. When an unregistered user enters, the system modifies key parameters: door lock status changes to unlocked, but vehicle running capability is set to disabled. This parameter differentiation allows convenient passenger access while maintaining safety by altering the vehicle's operational state according to the authenticated user's authorization level.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11364876B2Vehicle control device, vehicle control method, and recording medium
Publication Date: 2022.06.21 HONDA MOTOR CO LTD
  • US11364876B2 patent drawing
  • US11364876B2 patent drawing
  • US11364876B2 patent drawing

AI summary

A vehicle control device includes: an unregistered-user-face-image acquiring unit that acquires an unregistered-user-face-image when an unregistered-user-getting-on recognizing unit recognizes that an unregistered user gets on the vehicle, the unregistered-user-face-image being a face image of the unregistered user; and a vehicle entry control unit that sets vehicle to a first entry-enabled-state when a matching degree between a user-candidate-face-image and the unregistered-user-face-image is equal to or higher than a first determination level, after the unregistered-user-getting-on recognizing unit recognizes that the unregistered user gets on the vehicle until a predetermined time elapses, the user-candidate-face-image being acquired by a user-candidate-face-image acquiring unit.