Internet-of-things perception data management system and management method based on block chain

The invention provides an Internet of Things sensing data management system and management method based on a block chain, the management system realizes credible authentication and shared supervision of Internet of Things sensing data based on an alliance chain, and the management system comprises a credible authentication module, a supervision module and a sharing module, the credible authentication module is used for carrying out credible authentication on a data provider, a data requester, Internet of Things sensing equipment and Internet of Things sensing data; the supervision module is used for carrying out credible supervision on the whole life cycle of the internet-of-things sensing data; and the sharing module is used for carrying out exchange sharing and authorization management on the internet-of-things sensing data. According to the method, an alliance chain jointly formed by subjects of different trust domains is established, time-space attributes and a data circulation process are tightly bound,