An elevator car position and speed detection system and its self-test method
A technology for detecting the position and speed of an elevator car, applied in the field of elevators, can solve the problems of high detection cost, inaccuracy, and complicated detection technology, and achieve the effects of high detection accuracy, simplified detection technology, and safe, stable and reliable system
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[0024] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0025] Such as figure 1 with figure 2 As shown, the present invention provides a position and speed detection system for the elevator car 10. The car 10 is located in the hoistway 20, and includes a scale 30 vertically arranged in the hoistway 20, and a device for collecting the information of the scale 30. A detection device 40, a controller 50 electrically connected to the detection device 40;
[0026] The scale 30 is provided with a column of markings arranged vertically, the markings include a first type of marking 310 and a second type of marking 320 arranged alternately along the length direction of the scale 30, the first type of marking 310 includes at le...
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