RFID Data Management Using Temperature-Dependent Retention Calculation
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Solution Overview
Problem
RFID tags experience data deletion or corruption due to thermal history, particularly in high-temperature environments, leading to a shorter retention period and inaccurate data reading when managed using standard methods intended for general temperature conditions.
Innovation Solution
An RFID data management device and method that includes an RFID data acquisition unit, a relevant data acquisition unit, and a remaining time calculation unit, which calculates the remaining data guarantee time based on identification information and environmental temperature, distinguishing between the storage and usage periods to accurately assess the retention period and trigger data rewriting before data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If RFID tags are used in high-temperature environments, then they can operate in severe temperature conditions, but the retention period becomes shorter and data is deleted or corrupted
Solution Approach 1:
The system performs preliminary actions by calculating the retention period based on temperature history before data corruption occurs. The management device continuously monitors temperature and calculates remaining retention time, enabling proactive data rewriting or backup before the RFID tag data becomes corrupted.
Solution Approach 2:
The system implements feedback by continuously monitoring the environmental temperature of the RFID tag and using this information to dynamically calculate the retention period. This feedback loop allows the management device to adjust data management strategies based on actual temperature conditions, ensuring data integrity in varying thermal environments.
2Ease of operation
If standard management methods are used for RFID tags, then management is simple, but accurate data cannot be read in high-temperature environments
Solution Approach 1:
The system changes the parameter of retention period calculation from a fixed value to a dynamic value based on temperature history. By incorporating temperature as a variable parameter, the system accurately determines the retention period under different thermal conditions, enabling precise data management while maintaining operational simplicity through automated calculations.
3Duration of action of stationary object
If the retention period is extended in high-temperature environments, then data can be retained longer, but the physical and chemical changes accelerate data loss
Solution Approach 1:
The system converts the harmful effect of thermal history into a beneficial calculation parameter. By using temperature history data to calculate the retention period, the system transforms the previously harmful thermal exposure into useful information that enables accurate prediction of data validity, allowing proactive data management before corruption occurs.
Data Source
AI summary
An RFID data management device includes an RFID data acquisition unit acquiring RFID management data including identification information of an RFID, a relevant data acquisition unit acquiring RFID relevant data including a use start date of the RFID, and a remaining time calculation unit calculating a remaining data guarantee time of the RFID using a data guarantee period dependent on the identification information and the environmental temperature of the RFID, and the environmental temperature. The remaining time calculation unit calculates the remaining time using an environmental temperature in a first period from a manufacturing date of the RFID to a use start timing, a data guarantee period according to the environmental temperature in the first period, an environmental temperature in a second period from the use start timing to a timing of confirmation, and a data guarantee period according to the environmental temperature in the second period.