Integrated Functional Safety and Security Diagnosis Mechanism of CPS Based on Blockchain

IEEE Access

卷:8

Chuanyu Cui¹  Ai Gu²  Yue Li²  Zhenyu Yin² 

[1] Chinese Academy of Sciences, Institute of Metal Research, Shenyang, China;

[2] School of Computer Science and Technology, University of Chinese Academy of Sciences, Beijing, China;

关键词: Blockchain;    CPS;    functional safety;    smart contract;   

DOI  :  10.1109/ACCESS.2020.2967453

来源: DOAJ

【 摘 要 】

This paper proposes a functional safety and information security protection mechanism based on blockchain technology. The design of the basic level and integration level blockchain structure of CPS distributed architecture and related functional safety and information security measures are introduced. An effective communication judgment mechanism based on functional safety error threshold is proposed, which is stored and judged by smart contract. And a refund transaction with a clock is proposed to ensure the effective execution of the functional safety error threshold mechanism. The article takes cyber physical machine tool system as an example to describe the SIL judgment method of CPS physical equipment and functional safety loop and combines SIL with fault diagnosis and risk protection. Finally, the rationality of our proposed mechanism is proved by information security, functional security, real-time and maintainability.

【 授权许可】

Unknown