OPERATIONAL FAULT DETECTION SYSTEM AND METHOD FOR WINCH OF SUSPENDED PLATFORM IN CONSTRUCTION VERTICAL SHAFT

摘要

An operational fault detection system and method for a winch of a suspended platform in a construction vertical shaft, the system comprising a first sensing unit and a first signal processing and collection unit arranged on a suspended platform (1), a second sensing unit and a second signal processing and collection unit arranged on main shafts of main sheaves (8) and bases of the main sheaves (8), a wireless signal transmission system arranged on a construction shaft wall, and a PLC centralised control centre arranged in a control room. The first sensing unit comprises a triaxial tilt sensor (2). The second sensing unit comprises shaft encoders (7), pressure sensors (10) and a wireless signal strength detector (14). The first signal processing and collection unit and the second signal processing and collection unit comprise a signal processing and collection device (3). The wireless signal transmission system comprises wireless mesh nodes (4) and a controller (13). The control centre comprises a main control PLC programmable controller (12), a human-computer interaction device, a sound and light alarm circuit and a data storage device. The system detects and eliminates operational faults of the winch of the suspended platform in the construction vertical shaft, and implements safe and stable operation of the winch of the suspended platform in the construction vertical shaft.