AbstractAs of today, blockchain technology is virtually absent from rail transit applications, however, it has promising potential. For cloud‐based systems or conventional systems, there is too much information at the centre, resulting in a high level of data processing. However, if the data processing capability can be provided at the edge station or at the edge equipment, it greatly reduces the operation and maintenance pressure, at the same time, if the edge device takes the form of a blockchain, it is possible to increase the safety protection capability. It is important to reduce operating and maintenance risks for metro equipment systems by installing fault diagnosis and health management capabilities. This paper presents a blockchain‐based platform for subway applications. The assistance includes design, construction, operation, and maintenance assistance, energy saving assistance, manpower reduction assistance, fire protection linkage assistance at transfer stations, federal learning analysis and artificial intelligence analysis, as well as specific implementation plans for implementing vent valve equipment as examples.

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