Privacy-Aware User Identification Through Voluntary Room Actions

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Solution Overview

Problem

Existing user management systems face challenges in detailed user identification while ensuring privacy protection, as constant monitoring with cameras or similar devices is undesirable.

Innovation Solution

A user management system that employs a user detection process to identify user presence without identification, setting an anonymous flag, and triggers user identification only upon voluntary specific actions, using devices like infrared sensors and image capturing devices selectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If user identification is performed continuously using cameras or similar devices, then detailed user management is achieved, but user privacy is compromised

Engineering Contradiction:
Improveuser identification accuracyVSAvoidprivacy infringement
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The system performs user detection periodically rather than continuously, using anonymous detection in most cases and switching to identification-only mode when specific actions are detected. This periodic switching between detection modes reduces privacy intrusion while maintaining identification capability when necessary

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system extracts only the necessary information for each purpose: anonymous detection extracts presence information without personal identifiers, while identification extracts only when specific actions occur. This selective extraction minimizes privacy infringement while maintaining management effectiveness

Inventive Principle:
Principle #2Taking out (Extraction)

2Object-affected harmful factors

If anonymous detection is used to protect privacy, then detailed user management capability is reduced

Engineering Contradiction:
Improveprivacy protectionVSAvoiduser identification information
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The system performs preliminary anonymous detection to establish baseline presence information and patterns. When specific actions are detected, the system then performs identification as a follow-up action, ensuring that identification occurs only when necessary and building upon previously collected anonymous data

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from anonymous detection results to determine when identification should be triggered. Specific actions detected through anonymous monitoring provide feedback that activates the identification process, creating a closed-loop system that balances privacy and information needs

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20260023878A1User management system
Publication Date: 2026.01.22 TOYOTA JIDOSHA KK
  • US20260023878A1 patent drawing
  • US20260023878A1 patent drawing
  • US20260023878A1 patent drawing

AI summary

A user management system manages users who use first to N-th rooms. The system is configured to execute a user detection process to detect a user who is present in an i-th room without identifying the user. The system is configured to set an anonymous flag to a first user detected by the user detection process. The system is configured to determine whether the first user takes a first specific action in a j-th room, the first specific action being associated with the first user. The system is configured to set a first specific flag for identifying the first user to the first user when the first user takes the first specific action.