RFID Authentication with User Detection and Image Verification

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Solution Overview

Problem

Existing RFID authentication systems face issues with timely initiation and cessation of radio wave emission, leading to inefficient power consumption due to uncontrolled timing of wave emission and reception.

Innovation Solution

An information processing apparatus equipped with a detecting unit, radio communication unit, first authentication unit, imaging unit, and authentication unit, which detects users, emits radio waves only when necessary, and combines radio and image authentication to authorize access, reducing unnecessary power usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If radio wave emission is continuously performed for RFID authentication, then authentication function is available, but power consumption increases due to uncontrolled emission timing

Engineering Contradiction:
Improveauthentication functionVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The RFID reader performs radio wave emission periodically based on detection of user presence. The system detects when a user approaches using a detection unit, then activates radio wave emission only during those periods. This periodic activation based on external conditions reduces continuous power consumption while maintaining authentication functionality when needed.

Inventive Principle:
Principle #19Periodic action

2Ease of operation

If radio wave emission starts early for RFID authentication, then authentication readiness is improved, but power consumption increases due to premature emission

Engineering Contradiction:
Improveauthentication readinessVSAvoidpower consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary detection of user presence using a detection unit before activating radio wave emission. This preliminary action ensures that authentication is ready to proceed immediately when a user is detected, without the need for continuous or premature emission of radio waves, thus optimizing both responsiveness and power consumption.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If radio wave emission is extended beyond necessary time for RFID authentication, then authentication completeness is improved, but power consumption increases due to prolonged emission

Engineering Contradiction:
Improveauthentication completenessVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system uses feedback from the RFID tag reading process to control the duration of radio wave emission. When a tag is successfully read and authentication is completed, the system stops radio wave emission. This feedback-based control ensures authentication completeness while preventing unnecessary prolonged emission that would waste power.

Inventive Principle:
Principle #23Feedback

4Measurement precision

If multiple authentication methods (radio and image) are combined, then authentication accuracy is improved, but device complexity increases

Engineering Contradiction:
Improveauthentication accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system merges radio authentication (RFID tag reading) with image authentication (facial recognition) into a unified authentication process. The authentication unit integrates results from both methods to verify user identity, improving overall authentication accuracy by cross-validating multiple biometric and digital identifiers while managing system complexity through integrated processing.

Inventive Principle:
Principle #5Merging (Combining)

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

The system effectively reduces power consumption by controlling radio wave emission and enhances authentication accuracy by correlating radio and image authentication results.

Implementation Method 1

a radio communication unit configured to start emission of radio waves for performing radio communication with a radio tag

Methodology Applied
Scientific EffectRadio wave emission: Electromagnetic Induction

Data Source

PatentUS10325082B2Information processing apparatus, information processing system, authentication method, and recording medium
Publication Date: 2019.06.18 RICOH CO LTD
  • US10325082B2 patent drawing
  • US10325082B2 patent drawing
  • US10325082B2 patent drawing

AI summary

An information processing apparatus includes: a radio communication unit configured to start emission of radio waves for performing radio communication with a radio tag, and obtain specific information from the radio tag, at least after a time point at which a user in a predetermined range is detected by a detecting unit; a first authentication unit configured to execute first authentication for the radio tag, based on the specific information obtained by the radio communication unit; a second authentication unit configured to execute second authentication for a user included in an image acquired by an imaging unit, based on feature information of the image; and an apparatus authentication unit configured to authorize the user to use the information processing apparatus, if a user of the radio tag authenticated by the first authentication is the same as the user authenticated by the second authentication.