RFID-Tagged Cookware Identification for Robotic Cooking Systems

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Solution Overview

Problem

Automated and robotic cooking systems face challenges in efficiently identifying and tracking multiple cooking vessels throughout various cooking processes, particularly due to the passive nature of cookware requiring a communication interface for identification and data exchange, which is not adequately addressed by existing RFID technologies.

Innovation Solution

Integration of RFID tags with a communication port connected to a system controller or PC, allowing for passive identification and data transfer, along with shielding from electromagnetic interference, and assigning unique IDs to cookware for process optimization and maintenance tracking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If RFID tags are integrated into cooking vessels for automated identification, then cookware identification accuracy is improved, but device complexity increases due to additional communication interfaces and shielding requirements

Engineering Contradiction:

Improvecookware identification accuracyVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces RFID tags as intermediary elements that bridge the communication gap between the passive cookware and the active robotic cooking system. The tags serve as mediators that enable identification and data exchange without requiring the cookware itself to be active or complex.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces manual cookware identification and tracking mechanisms with electromagnetic RFID technology. This substitution eliminates the need for mechanical markers, visual identification, or manual tracking, thereby improving identification accuracy while the system manages the added complexity through automated reading and processing.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If multiple cooking vessels are used in automated cooking processes, then productivity is improved, but identification and tracking difficulty increases

Engineering Contradiction:

Improvecooking throughputVSAvoidcookware tracking difficulty

Core Design Contradiction:

ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent implements feedback mechanisms where the robotic system continuously reads RFID tags on cooking vessels throughout the cooking process. This feedback enables real-time tracking and identification of multiple vessels, allowing the system to manage complex workflows with multiple cookware items simultaneously, thereby maintaining high productivity.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

Each cooking vessel equipped with an RFID tag essentially identifies itself to the robotic system. The passive tags automatically respond to RFID queries, enabling the system to track and identify multiple vessels without additional manual intervention or complex external tracking infrastructure.

Inventive Principle:

Principle #25Self-service

3Adaptability or versatility

If RFID tags are exposed to high temperatures and electromagnetic fields during cooking, then cookware functionality is maintained, but tag reliability deteriorates due to electromagnetic interference and thermal stress

Engineering Contradiction:

Improvecookware usability in cooking processesVSAvoidRFID tag reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent employs shielding structures and protective enclosures around the RFID tags that act as flexible barriers against electromagnetic interference. These shields protect the sensitive electronic components while allowing the tags to remain functional in the high-temperature cooking environment, maintaining reliability despite the harsh conditions.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The patent addresses the harmful effects of electromagnetic fields from induction cookers by implementing shielding that converts these potentially destructive fields into manageable interference levels. The shielding structures strategically positioned around tags actually improve reliability by filtering out harmful electromagnetic noise while allowing necessary communication.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 the efficiency of automated cooking processes by enabling precise cookware identification, data exchange, and maintenance tracking, optimizing cooking cycles and preventing system downtime through accurate cookware management and recipe association.

Implementation Method 1

Radio-frequency identification (RFID), which uses electromagnetic fields to automatically identify and track tags attached to cooking vessels or cookware

Methodology Applied

Scientific EffectElectromagnetic fields: Electromagnetic Induction

Data Source

PatentUS11957278B2RFID tagged and identified cookware in robotic or automated cooking system

Publication Date: 2024.04.16 CIRCUS SE

AI summary

The present invention relates to an RFID tagged and identified cookware in robotic or automated cooking system for identification of each one of the cooking vessels throughout the variety of stages of the cooking processes or meal preparation processes in automated or robotic cooking apparatus through an integrated RFID tag.