A novel kind of sufficient conditions for safety judgement based on control barrier function

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Dear editor,rnRecently,work safety accidents have started to occur on a large scale in Chinese petrochemical companies.Further,the operational safety of large and complex systems is being closely monitored by our government,environmental orga-nizations,and conscientious citizens.The scale of complex systems,such as industrial systems and smart grids,has ex-panded because of the usage of new technologies,including cyber-physical systems and multi-agent systems.Addition-ally,it has become difficult to detect,control,and protect the operational safety.Because the information mapped by the physical world is becoming increasingly comprehensive,it has become imperative to effectively maintain operational safety in a specific kind of system.This axea is receiving considerable attention in both the academic and the engi-neering fields.Therefore,operational safety will remain as fundamental as the operational stability required in a com-plex system.
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