A Trusted Management Of Environmental Monitoring Based On Blockchain

The management of existing environmental monitoring systems is mostly centralized services,and the acquisition of monitoring data is too dependent on a single environmental monitoring agency and a third-party operating agency.The monitoring data adopts centralized storage management,there is the possibility that the data is intentionally tampered with,and the authenticity of the environmental data cannot be guaranteed.Aiming at these problems,this thesis takes advantage of the decentralization and non-tampering characteristics of blockchain technology,and proposes a trusted management scheme for environmental monitoring based on blockchain,An authentication mechanism based on a decentralized verification method is used to ensure the authenticity and credibility of the data source to realize the credible verification,credible storage and credible access of environmental data.The specific research contents are as follows:(1)Apply the decentralized method of blockchain to environmental monitoring management,and conduct research on the technical research issues related to the collection of trusted environmental monitoring data and the authentication of environmental monitoring data that currently exist in the application field of blockchain-based environmental monitoring.According to the requirement analysis of decentralized environmental monitoring,the environmental data participants,trust operations,block and chain structures and their structures are researched,and a trusted management model,trusted publishing and verification methods for environmental monitoring data based on blockchain are proposed.In the view of the authenticity of environmental monitoring data sources and related technical issues such as how the participants manage the monitoring data,methods such as credible identification and authentication of environmental monitoring data,add environmental equipment status information as the data on the chain,improve the efficiency of off-site supervision,enhance the credibility of the monitoring results,and the participants’ collaborative management of monitoring data are proposed to further achieve decentralization credible management of environmental monitoring.(2)In order to ensure the application efficiency of environmental monitoring and management,the existing consensus mechanisms are analyzed and compared in terms of computational overhead,fault tolerance,response time,throughput,etc.,and the Practical Byzantine Fault Tolerance(PBFT)algorithm is selected to implement the consensus mechanism monitoring data authentication.A Practical Byzantine Fault Tolerance(LG-PBFT)consensus algorithm based on location grouping is proposed.The effectiveness of LG-PBFT is analyzed and verified from the aspects of communication delay,communication times,throughput and fault tolerance.(3)According to the research results of the trusted management scheme environmental monitoring based on blockchain,with the help of the Ethereum platform and its smart contract technology,the functional structure of environmental monitoring trusted management is designed and implemented in simulation,and the scheme of the simulation experiment of environmental monitoring data integrity verification is constructed.,the test results show the validity and practicability of the research conclusions.