公开(公告)号：US20200309870A1

公开(公告)日：2020-10-01

申请号：US16828033

申请日：2020-03-24

Applicant: ISHIDA CO., LTD.

Inventor： Bunpei YAMASHITA ,  Yoshito KUNISAKI ,  Makoto NAKATANI

IPC: G01R33/09 ,  G01R33/12

Abstract: An article movement detection system includes a first sensor and a second sensor disposed facing a movement path of an article and is capable of individually detecting that the article has moved, and a detection unit detecting movement of the article on the basis of a first output being output from the first sensor and a second output being output from the second sensor. The first sensor and the second sensor are disposed at different positions in a moving direction of the article, and a first detection signal and a second detection signal are output with a time lag therebetween. The detection unit detects movement of the article on the basis of the first detection signal and the second detection signal.