公开(公告)号：US20180229965A1

公开(公告)日：2018-08-16

申请号：US15869283

申请日：2018-01-12

申请人： Kone Corporation

发明人： Ari KATTAINEN ,  Antti HOVI ,  Toni HIRVONEN ,  Ari JUSSILA ,  Matti MUSTONEN ,  Arttu LEPPAKOSKI ,  Juha-Matti AITAMURTO

IPC分类号： B66B1/34 ,  B66B5/00

摘要： This invention relates to a method for defining absolute position information of an elevator car. The method comprises: obtaining continuously a pulse position information of the elevator car; and defining an absolute position information of the elevator car by adding a predefined correction value to the obtained pulse position information of the elevator car. The predefined correction value indicates a drift between the obtained pulse position information of the elevator car and the actual pulse position of the elevator car. The invention also relates to a safety control unit and an elevator system performing at least partly the method.

公开(公告)号：US20210371243A1

公开(公告)日：2021-12-02

申请号：US17242720

申请日：2021-04-28

申请人： Kone Corporation

发明人： Arttu LEPPAKOSKI ,  Atso KOSKINEN

IPC分类号： B66B5/06 ,  B66B1/34

摘要： The present invention is about a system and method for evaluating the movement of an elevator car within a hoistway. The same is based on gathering movement data of the car by means of a rotation encoder or acceleration sensor. Since these data are counted pulses there is a need to convert them into real movement data. This conversion is calibrated automatically by comparing the movement data with a length distance being passed by the car, wherein said length distance is configured to be unchangeable over the time. Base on the exact movement results gained therewith by means of said calibration one also gets better position results of the car in the hoistway.