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Making assembly line in supply chain robust and secure using UHF RFID.

Abubakar Sharif1,2,3, Rajesh Kumar4, Jun Ouyang1

  • 1School of Electronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, 611731, China.

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|September 11, 2021
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Summary

This study introduces an inkjet-printed ultrahigh frequency radiofrequency identification (UHF RFID) system for secure supply chain management. The novel UHF RFID tag enhances traceability and authentication for liquid products, improving consumer trust.

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Area of Science:

  • Electrical Engineering
  • Supply Chain Management
  • Materials Science

Background:

  • Traditional supply chain management faces challenges in tracking and authenticating liquid products due to difficulties in tagging.
  • Existing radiofrequency identification (RFID) solutions often struggle with performance degradation when applied to fluid-filled containers.

Purpose of the Study:

  • To develop and validate a novel, low-cost, inkjet-printed ultrahigh frequency radiofrequency identification (UHF RFID) tag antenna specifically designed for liquid bottles.
  • To integrate this UHF RFID system with blockchain technology for enhanced supply chain traceability, authentication, and secure transactions.

Main Methods:

  • Characteristic Mode Analysis (CMA) was employed for the design and optimization of a nested slot-based UHF RFID tag antenna.
  • The tag antenna was fabricated using inkjet printing, enabling low-cost and compact production.
  • Commercial testing was conducted in real-world scenarios, including conveyor belts and smart refrigerators, for automatic billing and product tracking.

Main Results:

  • The proposed inkjet-printed UHF RFID tag antenna demonstrated a 2.5-meter improvement in read range compared to existing designs.
  • Robust performance was achieved across various liquid bottle products, overcoming challenges posed by high permittivity materials.
  • Successful real-time, secure product monitoring and automatic billing applications were demonstrated using the blockchain-enabled system.

Conclusions:

  • The developed blockchain-enabled inkjet-printed UHF RFID system offers a secure and efficient solution for supply chain management, traceability, and authentication of liquid consumer products.
  • This technology fosters trust between suppliers and consumers through transparent product tracking and the potential for smart contracts.
  • The system provides a foundation for authentic, contactless delivery, particularly relevant in the context of public health concerns like the recent pandemic.