RFID Tag Memory Segmentation for Lab Consumables

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Solution Overview

Problem

The existing use of user memory on RFID tags for storing temporary data in laboratory instruments reduces memory capacity for permanent information, requires complex data management, and slows down workflows due to the need for multiple commands to access and link unique identifiers (UID) with temporary data, especially in large-scale reagent or sample processing systems.

Innovation Solution

Storing temporary data in the system memory of RFID tags associated with laboratory instruments, allowing for single-command access and transmission of UID and dynamic data, thereby accelerating the identification process and reducing communication time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If temporary data is stored in the user memory part of the RFID tag, then the data can be accessed, but the memory capacity for permanent information like reagent fluid content or expiration date is reduced

Engineering Contradiction:
Improvememory capacity for permanent informationVSAvoiddata management complexity
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The patent segments the RFID tag memory into distinct functional areas: system memory (for permanent data like UID, AFI, EAS) and user memory (for temporary process data). This segmentation allows permanent information to be stored in the system memory while temporary data occupies only the necessary portion of user memory, preventing capacity reduction for critical permanent information.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts the temporary data storage function from the user memory and implements it in a dedicated manner within the memory structure. By allocating specific blocks in user memory for temporary process data while preserving the system memory for permanent information, the solution takes out the conflicting requirements and assigns them to appropriate memory regions.

Inventive Principle:
Principle #2Taking out (Extraction)

2Productivity

If temporary data is stored in the user memory part of the RFID tag, then the data can be stored, but multiple reading commands are needed to link UID to temporary data, slowing down the workflow

Engineering Contradiction:
Improveworkflow speedVSAvoidcommunication time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent merges the UID and temporary process data into a single accessible memory location within the user memory. By storing the temporary data in blocks that are directly associated with the UID in the same memory access context, the system can retrieve both the UID and the temporary data in a single reading command, eliminating the time loss from multiple sequential commands.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the user memory part is used for temporary data, then dynamic data can be stored, but the memory area needs to be defined and kept free during production, leading to huge effort in agreement between different departments

Engineering Contradiction:
Improveflexibility in data storageVSAvoidproduction complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent applies local quality by designating specific blocks within the user memory for temporary process data, while leaving other portions available for permanent information. This localized allocation allows the memory structure to accommodate both temporary and permanent data requirements without requiring extensive coordination during production, as the segmentation is clearly defined and standardized.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3182310B1Method for storing temporary data in a memory of an RFID tag associated with a consumable of a laboratory instrument and system comprising a laboratory instrument, a consumable and an RFID tag
Publication Date: 2022.10.12 ROCHE DIAGNOSTICS GMBH
  • EP3182310B1 patent drawingFigure 1~2
  • EP3182310B1 patent drawingFigure 3~5

AI summary

A method for storing temporary data in a memory (114) of a RFID tag (106) associated with a consumable (104) of a laboratory instrument (102) for processing a reagent or biological sample is disclosed. The method comprises providing the RFID tag (106) associated with the consumable (104), wherein the RFID tag (106) comprises a memory (114), wherein the memory (114) comprises a user memory (116), which is configured to store user data, and a system memory (118), which is configured to store system data, and the laboratory instrument (102) writing the temporary data into the system memory (118), wherein the temporary data are associated with a process to be carried out by the laboratory instrument (102). Further, a system (100) comprising a laboratory instrument (102) for processing a reagent or biological sample, a consumable (104) and a RFID tag (106) associated with the consumable (104) is disclosed. The laboratory instrument (102) is configured to carry out the method.