Escalator steps; escalator steps incorporating cameras and sensors used in the repair and maintenance of escalators

'camera':6 'escal':1,3,16 'incorpor':5 'mainten':14 'repair':12 'sensor':8 'step':2,4 'use':9

Acoustic sensors, vibration sensors, accelerometers, gyroscopes, motion sensors, video and still cameras, all used in the maintenance of escalators; computer software for use in detecting, tracking and diagnosing escalator system anomalies, deterioration and breakdowns, used in the repair and maintenance of escalators

'acceleromet':5 'acoust':1 'anomali':31 'breakdown':34 'camera':12 'comput':20 'detect':25 'deterior':32 'diagnos':28 'escal':19,29,42 'gyroscop':6 'mainten':17,40 'motion':7 'repair':38 'sensor':2,4,8 'softwar':21 'still':11 'system':30 'track':26 'use':14,23,35 'vibrat':3 'video':9

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