| 摘要 |
A method and system for supervising the safety of an elevator having a car driven by a drive within a hoistway wherein a travel parameter (X<SUB>ABS</SUB>,X''<SUB>Acc</SUB>,X'<SUB>IGB</SUB>) of the car is sensed and continually compared with a similarly sensed travel parameter (X'<SUB>IG</SUB>) of the drive. If the comparison shows a large deviation between the two parameters, an emergency stop is initiated. Otherwise one of the travel parameters (X<SUB>ABS</SUB>,X''<SUB>Acc </SUB>X'<SUB>IGB</SUB>; X'<SUB>IG</SUB>) is output as a verified signal (X;X'). The verified signal is then compared with predetermined permitted values. If it lies outside the permitted range then an emergency stop is initiated. |
