Blochain-based Monitoring And Certificate Keeping System For Production Safety

Dust collection pipelines play an important role in the safety management of industrial production fields such as chemical industry,textiles,wood processing,and other fields.The contact of sparks with the dust in pipelines might cause fire,explosion,and other serious safety accidents.As the scale of industrial plants continues to expand,safety supervision departments attach greater importance to production safety supervision.Online warning and monitoring record storage services based on Internet of Things(Io T)monitoring equipment has gradually become a pain for the production safety monitoring.This thesis describes the design and implementation of an industrial safety monitoring and certificate keeping system for spark detection for dust collection pipes.It watches the spark conditions in the dust collection pipe in real-time by Io T equipment deployed in the workshop.It cooperates with alarm devices and the danger collection equipment to perform local early warning and danger collection following safety regulations.At the same time,the devices will report the collected hidden danger information to the backend,which is used as the security record,accident investigation and responsibility tracking for the regulatory records and online early-warning alerts.The backend is mainly for security supervision personnel and plant management personnel.It provides two types of services.One is the data retrieval and inspection service of credible security risk warning records.The other is to meet the rapid message transmission and response to alerts and to watch and early warning Business related data management services.This system contains three modules: Io T monitoring equipment module,monitoring record storage platform module for production safety supervision,and monitoring and early warning business backend system module for the plant to assist in early warning and risk elimination.The whole system is presented in the form of Web services.Netty + Spring Cloud Microservice architecture is adopted as the interaction service layer of the system and device users.On the storage side,a combination of blockchain technology and traditional relational databases is used to store ledger data and early warning business data,respectively.To ensure the credibility and security of the recorded data storage in the certificate storage platform,this system is based on the blockchain development framework Hyperledger Fabric.It makes a three-party accounting strategy that ensures the regulatory authorities,the system service provider and the enterprise accessing the system maintain the ledger together.Besides,the dynamic endorsement rules for authenticating transactions are designed so each transaction proposal must be approved by at least one node of all institutions.With the two strategies above,the backend of the platform guarantees the immutability of the data after being written.Also,The equipment master control system and certificate storage platform are based on the identity access mechanisms,the Fabric CA and the digital signature technology.They use the method of burning firmware to seal sensitive data files such as identity certificates and program source code.That protects data security from identity stealing.Double encryption channel combined with symmetric encryption and two layers of proxy services prevent arbitrage and tampering of identity information interaction in the network link.Besides,the device adds additional sensors to resist external interference and impact.The device also uses a redundant backup strategy to prevent accidental monitoring exceptions.The above design effectively guarantees the truthful records of the entire process of data collection,data transmission,and background writing during the data collection-data transmission-background tamper-proof.It expands the credibility of the system certificate storage platform from the blockchain network itself to device nodes.