An Internet of Things data transaction architecture based on block chain and a transaction security method thereof

The invention discloses an Internet of Things data transaction structure based on block chain, which comprises a local wireless sensing network, a data providing node, a data consuming node, a data storing node, a leaflet and transaction credentials. The invention also discloses a transaction security method based on the data transaction architecture of the Internet of Things, comprising the following steps: S1, a leaflet construction sending stage; S2, a data uploading stage; S3, a transaction preparation stage; S4, a transaction processing stage; The invention solves the problem that a largenumber of isolated islands of internet of things data exist due to centralized storage in the prior art, which greatly hinders the flow of internet of things data and wastes the value contained in the internet of things data. 本发明公开了种基于区块链的物联网数据交易架构，包括：本地无线感知网络、数据提供节点、数据消费节点、数据存储节点、传单、交易凭据；以及种基于物联网数据交易架构的交易安全方法，包括如下步骤：S1、传单构造发送阶段；S2、数据上传阶段；S3、交易准备阶段；S4、交易处理阶段；本发明解决了现有技术中由于集中式存储导致了大量物联网数据孤岛的存在，极大的妨碍了物联网数据的流通，浪费了物联网数据中蕴含的价值