Blockchain-Based Data Management and Control System in Rail Transit Security Scenario

During the 14th Five-Year Plan period, China's urban rail transit market has exhibited steady growth, paralleled by increases in passenger volume and emerging safety challenges. The advent of national standards such as GB 51151 has heightened safety requirements, pressing the need for technological advancements in rail transit security systems. Traditional security systems suffer from isolated operations and inefficient information exchanges, necessitating additional human resources for management. We propose integrating blockchain technology to enhance trust and security across disparate systems. Additionally, the introduction of heterogeneous query blockchain middle-ware facilitates cross-chain data interoperability and advanced querying capabilities, further enriching our multimodal, fine-grained blockchain security management system that leverages Fabric's channel isolation for secondary permission control. This system not only ensures secure data transmission and storage but also addresses privacy and trust issues, enabling unified data handling and traceability across rail transit security platforms. The experiment demonstrated the efficacy of our work