This paper addresses critical metrological challenges in marine power systems—including measurement deficiencies for 23 key parameters, digital fragmentation hindering cross-system data integration, and inconsistent standardization across lifecycle phases. This paper proposes a Cloud-Edge-Device Integrated Architecture with five functional strata: the Data Layer consolidating laboratory/vessel datasets, the Perception Layer enabling edge-computing acquisition via adaptive tools, the Platform Layer standardizing metadata through API services, and the Application Layer deploying predictive maintenance and lifecycle simulation. This framework establishes closed-loop data management for 53 critical parameters, resolving "unmeasurable/inaccurate/incomplete" data issues while implementing robust security via national encryption algorithms, RBAC/ABAC access controls, and blockchain-anchored trusted timestamps. Implementation demonstrates reliability improvement and accelerated design iteration, providing end-to-end metrological support compliant with international maritime standards.

2025 IMEKO TC-6 International Conference on Metrology and Digital Transformation