Title:
SWING ANGLE CALCULATION DEVICE OF HANGING LOAD
Document Type and Number:
Japanese Patent JP2017154868
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a swing angle calculation device which can estimate a swing angle by calculation processing even if the erroneous detection of the swing angle and a detection error temporarily occur.SOLUTION: A swing angle calculation device for creating a swing angle estimation value by calculation-processing a swing angle detection value of a hanging load which is suspended from a trolley in a prescribed cycle comprises: a detection value abnormality determination part 11 for determining a normality/abnormality of the swing angle detection value; a last-time estimation value/angular speed storage part 13 for calculating a swing angle speed from the swing angle estimation value in the last-time calculation cycle, and stores it; and a swing angle estimation part 12 which creates the swing angle detection value as a this-time swing angle estimation value when it is determined that the swing angle detection value is normal, and creates the this-time swing angle estimation value on the basis of the swing angle estimation value and the swing angle speed in the last-time calculation cycle which is stored in the last-time estimation value/angular speed storage part 13 when it is determined that the swing angle detection value is abnormal.SELECTED DRAWING: Figure 1
Inventors:
XU JIN PING
HAYASHI TAKASHI
KANEKO TAKAYUKI
HAYASHI TAKASHI
KANEKO TAKAYUKI
Application Number:
JP2016040569A
Publication Date:
September 07, 2017
Filing Date:
March 03, 2016
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
B66C13/22
Attorney, Agent or Firm:
Yuichi Morita