Research Article
A Fast Diagnosis Method of Escalator Reversal Faults Based on Dynamic Information and Multiattribute Decision-Making
| Event symbol | Event name |
| T | Escalator reversal | M1 | Nonmanipulative reversal | M2 | Torque chain instability or broken chain | M3 | Voltage fluctuation | M4 | Underpowered | M5 | Power drive chain broken | M7 | Traction chain broken | M8 | Insufficient braking friction | X1 | Overload | X2 | Gear meshing failure of gearbox | X3 | Damaged gearbox bearings | X4 | Insufficient grid voltage | X5 | Motor power is too small | X6 | Reversal protection device fails | X7 | Deformation and damage of drive chain | X8 | Loose host position | X9 | Damaged rung chain | X10 | The brake is not working properly |
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