As the key part of metro trains, on-board automatic train control (ATC) systems play the functions of overspeed protection and train operation control. Aiming at the problem of lifetime status evaluation in the life cycle management of on-board ATC equipment, an indicator system of influencing factors and an evaluation model were established, and a cloud model-based lifetime status evaluation method for on-board ATC equipment was proposed. Combined with a practical case of a metro line in Shanghai city, the applicability of the method was verified, and targeted maintenance suggestions were given. It is expected to provide a reference for the ideas and methods in the life cycle management of rail transit signal system.

CICTP