RFID-Embedded Phase-Change Plate for Cold-Chain Temperature Monitoring
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing temperature control plates for cold-chain transportation suffer from large temperature measurement errors, making it impossible to accurately monitor the internal temperature and detect phase change temperatures within phase change materials.
Innovation Solution
A temperature control plate incorporating a PET vacuum-sealing bag, a phase-change gel, a metal supporting frame, and an RFID passive temperature sensor tag, which allows for accurate temperature measurement by embedding the sensor tag within the phase-change gel and using an external RFID reader to transmit data to mobile phones or computers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional temperature measurement methods are used for phase change materials, then the measurement process is simple, but the temperature measurement error is large and internal temperature cannot be accurately monitored
Solution Approach 1:
The patent replaces traditional mechanical contact temperature measurement methods with RFID passive temperature sensor tags that use electromagnetic fields for wireless communication. This substitution eliminates the need for physical contact and complex wiring, enabling accurate internal temperature monitoring while maintaining system simplicity. The RFID tags communicate temperature data wirelessly through electromagnetic radiation, resolving the contradiction between measurement accuracy and device complexity.
Solution Approach 2:
The patent introduces RFID passive temperature sensor tags as intermediaries between the phase change material and the external measurement system. These tags are embedded within the phase change material to directly sense internal temperature, acting as a mediator that bridges the gap between the material's internal state and external monitoring equipment. This intermediary approach enables accurate internal temperature measurement without requiring complex intrusive measurement systems.
2Measurement precision
If external temperature sensors are used to monitor phase change materials, then the measurement system is simple, but the temperature data does not reflect the actual internal temperature of the material
Solution Approach 1:
The patent embeds RFID passive temperature sensor tags directly inside the phase change material, creating a nested structure where the sensing element is contained within the material itself. This nesting approach ensures the sensor is in direct thermal contact with the phase change material, accurately reflecting its internal temperature. The RFID tags are integrated during the manufacturing process, maintaining ease of production while achieving precise internal temperature detection.
Solution Approach 2:
The patent incorporates RFID passive temperature sensor tags into the phase change material during the manufacturing process, before the material is put into service. This preliminary integration ensures the sensors are properly positioned and thermally coupled to the material from the start, enabling accurate internal temperature monitoring from the beginning of operation without requiring additional installation steps that would complicate manufacturing.
3Measurement precision
If multiple temperature sensors are distributed throughout the phase change material, then internal temperature monitoring is improved, but the cost and complexity of the system increase
Solution Approach 1:
The patent replaces complex distributed sensor networks with RFID passive temperature sensor tags that utilize electromagnetic fields for wireless communication. This substitution eliminates the need for complex wiring and data collection infrastructure required by traditional distributed sensors. The RFID tags independently transmit temperature data wirelessly, achieving accurate internal temperature monitoring while maintaining system simplicity and reducing overall complexity.
Solution Approach 2:
The RFID passive temperature sensor tags are self-contained units that independently measure and transmit temperature data without requiring external power sources or complex control systems. Each tag operates autonomously, powering itself through electromagnetic induction from the RFID reader and independently communicating temperature information. This self-service capability reduces system complexity while maintaining accurate temperature monitoring across multiple points in the phase change material.
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
This solution enables precise temperature monitoring and detection of phase change temperatures, ensuring effective temperature control during cold-chain transportation with a simple, easy-to-produce, and user-friendly system.
Implementation Method 1
The phase-change gel is an energy storage material that fills the entire space inside the plate. It can absorb or release a large amount of energy during a phase-change process so as to maintain a relatively constant temperature.
Implementation Method 2
It can absorb or release a large amount of energy during a phase-change process
Implementation Method 3
By using data terminals such as mobile phones or computers to control an external RFID reader, and displaying the temperature data of the RFID passive temperature sensor tag obtained by the RFID reader
Implementation Method 4
since the PET vacuum-sealing bag is vacuum-sealed, it can effectively prevent condensed water vapor or bacteria in the air from entering the phase-change gel inside the temperature control plate
Data Source
AI summary
The present application discloses a temperature control plate and a Measurement method for the temperature control plate for cold-chain transportation. The temperature control plate for cold-chain transportation comprises a phase-change gel, a vacuum-sealing bag, a sealed plastic box, and an RFID passive temperature sensor tag. The phase-change gel is filled in the vacuum-sealing bag, and a supporting frame is embedded in the phase-change gel. The RFID passive temperature sensor tag is embedded in the phase-change gel. The vacuum-sealing bag is packed in the sealed plastic box, and the sealed plastic box is externally labeled with a tag identifier. The vacuum-sealing bag is a PET vacuum-sealing bag, and the sealed plastic box is a PET sealed plastic box. The Measurement method for the temperature control plate for cold-chain transportation is to detect the temperature of the temperature control plate for cold-chain transportation using a RFID reader, and the RFID reader transmits the temperature data to a data terminal. The present application solves the technical problems that the internal temperature of a temperature control plate for cold-chain transportation cannot be measured accurately, and achieves quick and effective measurement of the temperature of a phase-change material inside the temperature control plate for cold-chain transportation.