The invention discloses a method for detecting load entering and exiting of a lift car. The method comprises the following steps that S1, acceleration data generated when an elevator stops at a landing are obtained; s2, carrying out smooth filtering processing on the acceleration data to obtain a smooth acceleration signal asmooth; s3, envelope feature extraction is conducted on the smooth acceleration signal asmooth, an envelope feature signal afeature is obtained, a threshold value Thr is set, whether a hump larger than Thr exists in the feature signal afeature or not is recognized, and if yes, it is judged that a load enters/exits from the lift car; and S4, integral calculation is conducted on the smooth acceleration signal asmoth near each hump, if the integral value is positive, it is judged that the load leaves the lift car, and if the integral value is negative, it is judged that the load enters the lift car.
本发明公开了一种负载出入轿厢的检测方法,包括如下步骤:步骤S1:获取电梯停靠在层站期间的加速度数据;步骤S2:对加速度数据进行平滑滤波处理,得到平滑加速度信号asmooth;步骤S3:对平滑加速度信号asmooth进行包络线特征提取,获取包络线特征信号afeature,设置阈值Thr,识别特征信号afeature的中是否存在大于Thr的驼峰,若存在则判断有负载进/出轿厢;步骤S4:对每个驼峰附近的平滑加速度信号asmooth进行积分计算,若积分值为正,判定为负载离开轿厢,若积分值为负,判定为负载进入轿厢。
Detection method for load entering and exiting from lift car
一种负载出入轿厢的检测方法
2023-07-07
Patent
Elektronische Ressource
Chinesisch
IPC: | B66B Aufzüge , ELEVATORS |
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