Potential Requirements and Opportunities of Blockchain-Based Industrial IoT in Supply Chain: A Survey

The integration of the industrial Internet of Things (IoT) and blockchain technology is changing the business and management model of the supply chain. Much work is focused on how to promote the application of blockchain-based industrial IoT in the supply chain from both academic research and industrial practice. However, due to the different industrial requirements in industrial scenes, the gap between technology researches and industrial applications is still large. Therefore, the article adopts the mixed method of enterprise survey and literature review to identify the actual industrial requirements in different supply chain scenes. Also, the characteristics and applicable scenarios of industrial IoT and blockchain have been analyzed. Then, the potential application opportunities of blockchain-based industrial IoT in nine scenes are discussed in detail. This study reveals the technical challenges and practical challenges of these applications, which potentially guides research on applying industrial IoT and blockchain technology in the supply chain.