关键词: 功能安全, 信息安全, 多目标决策, 智能仪表

Abstract:

Aiming at the typical functional modules and security requirements of instruments, this paper designs a coordination framework that eliminate strategy overlap and resolve strategy conflicts. Based on the framework, the attributes of the security strategy are extracted and the formal modeling is completed. Then, this paper strikes a balance among security protection capabilities, risk mitigation degrees, instrument resource constraints and various factors comprehensively, and considers the difference of fuzzy preference of network communication security strategy and control behavior security strategy in the strategy integration process. Furthermore, the optimal deployment plan of security protection strategy is drawn. Finally, simulation experiments verify the feasibility and effectiveness of the proposed approach. In this paper, through a combination of fuzzy multi-objective decision-making and priority selection, the integration process of functional safety strategy and information security strategy for intelligent instrument is realized.

Key words: functional safety, information security, multi-objective decision making, intelligent instrument