Integration of Edge Computing and Blockchain for Provision of Data Fusion and Secure Big Data Analysis for Internet of Things

Figure 3

Distributed anomaly detection and localization algorithm combined with blockchain. (1) The node compares the hash value of the local chain to the hash value of the global chain to see whether there is an abnormality. (2) After the abnormality occurs, the node locates the anomaly by comparing the local model’s fuzzy hashing value to the global chain’s fuzzy hashing value.