Research on wireless detection policy of the friction lifting'sliding

The sliding between the wire rope and the liner is the most dangerous accident of friction lifting, it is necessary to do work to avoid sliding accident. We analysis the friction lifting dynamics behavior firstly, then build a creep model of friction lifting, based on which, a sliding phenomenon can be detected through collecting the difference of the velocities between the friction wheel and the guide wheel of friction lifting system. Base on the presented detection method, a wireless sliding detection system is developed, which consists of a host node in a lifting monitor room and two child nodes installed on the friction wheel and the guide wheel respectively. In the system, two child nodes collects the velocity of friction wheel and the guide wheel respectively, and transmit data to the host node by the wireless communication, then host node calculates the difference of the velocities between the friction wheel and the guide wheel ,and detects the sliding phenomenon. In the end, a wireless communication test between the host node and child node is presented, the test results displays that the velocity of the friction wheel and the guide wheel can be detected in real-time, and the host node can receive the data sent by the child nodes through wireless transmission.