Construction of knowledge graph for security threat tracing in Power Distribution Internet of Things

As the application of Power Internet of Things in the distribution network, Power Distribution Internet of Things is a new type of power network produced by the deep integration of traditional power industry and Internet of Things technology. The threat tracing method of security events in Power Distribution Internet of things is much significant to the security of Power Distribution Internet of things, it can help to quickly locate the source of security events and send back the threats of security events in distribution network. This research focuses on the construction of network security knowledge graph for the threat tracing of power distribution iot security events, which is the basic work of the threat tracing method.