# Remanufacturing workshop management in blockchain and digital twin-based cloud remanufacturing service platform

## TL;DR

This paper proposes a cloud-based platform for remanufacturing workshops using blockchain and digital twin technologies to improve data security, process transparency, and operational efficiency.

## Contribution

The novel contribution is the integration of blockchain and digital twin technologies to manage remanufacturing workshops in a cloud-based service platform.

## Key findings

- A dual-chain blockchain structure was designed to store transaction and workshop data securely.
- Digital twin technology enabled real-time monitoring and optimization of remanufacturing processes.
- The proposed system supports remote collaboration and data analysis in automotive remanufacturing workshops.

## Abstract

The cloud remanufacturing service platform is an online platform that provides various services and resources for the remanufacturing industry. It promotes the digital transformation of the industry, improves resource utilization efficiency, and reduces environmental impact. However, there are prominent issues in sharing remanufacturing data securely, monitoring the remanufacturing process opaquely, and dealing with high uncertainties in remanufacturing operations within the remanufacturing intelligent workshop, which is an important component of the platform. This paper combines blockchain technology and digital twin technology to study the management mode of the remanufacturing workshop under the cloud remanufacturing service platform. Firstly, the overall framework of the cloud remanufacturing service platform is constructed, and a dual-chain structure with expandable subchains for storing transaction data and workshop data is designed. Secondly, by connecting the remanufacturing workshop with smart contracts and digital twin, real-time monitoring, remote collaboration, and data analysis optimization of the remanufacturing workshop are achieved. Digital twin is applied to the remanufacturing process, and a digital twin-based remanufacturing workshop architecture is established. The key technologies involved are analyzed. Finally, the management mode of the automotive remanufacturing workshop under the cloud-based remanufacturing service platform based on blockchain and digital twin is explored.