MLTSM: A Crucial Multi-Layer Transmission Secure Mechanism for the Online Inspection System of Power Grid

A multi-layer transmission secure mechanism (MLTSM) with application into an online power grid inspection system is described and analyzed. Online Inspection System (OIS) is a heterogeneous system utilized in smart grid inspection, featuring multimedia data flow on different network model layers between UAV, ground controller (GC) and distributive cloud server. However, since sensitive visual and location data are frequently transmitted, which unidentified users can illegally access through any layer, a lightweight and all-around secure mechanism must be applied to the system. In particular, the mechanism is: 1. Application Layer Single-Way Encryption (ALSWE): All essential data, including data flow and storage, are encrypted and restricted for accession; 2. Transmission Layer Distributive Verification (TLDV): The UAV Security Cloud (UAV-SC) provides highly managed and centralized macroscopic authorization and key distribution. Finally, our experiment results show the highly elastic performance of MLTSM.