Blockchain-based IoT integration for VAT photopolymerization additive manufacturing process security and...

Area of Science:

• Additive Manufacturing
• Blockchain Technology
• Internet of Things (IoT)

Background:

• Industrial production data security and transparency are critical.
• Volatile Organic Compound (VOC) emissions in VAT Photopolymerization (VPP) require monitoring.
• Integrating IoT with blockchain offers enhanced data management.

Purpose of the Study:

• To implement a secure, transparent, and traceable system for VPP industrial production data using blockchain and IoT.
• To monitor and mitigate VOC emissions in real-time.
• To ensure regulatory compliance and improve industrial safety.

Main Methods:

• Developed a VPP-IoT system utilizing sensor data for VOC emission monitoring.
• Implemented a private blockchain network using Hyperledger Fabric for secure data management.
• Designed smart contracts for automated data validation, storage, and alerts.

Main Results:

• Achieved high performance with 487.2 transactions per second (tps) throughput.
• Demonstrated 99.99% data integrity verification success.
• Established a positive correlation between VOC emissions and printing parameters like exposure duration and light intensity.

Conclusions:

• Blockchain-IoT integration enhances regulatory compliance, predictive maintenance, and real-time monitoring in VPP additive manufacturing.
• The system promotes safer and more sustainable industrial practices.
• This work advances Industry 4.0 concepts in practical additive manufacturing applications.