The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2025
Filed:
Sep. 18, 2021
Casco Signal Co., Ltd., Shanghai, CN;
Siyuan Cheng, Shanghai, CN;
Tao Zhang, Shanghai, CN;
Zhijun Ji, Shanghai, CN;
Mingwang Xu, Shanghai, CN;
Limin Ning, Shanghai, CN;
Chao Li, Shanghai, CN;
Mingling Zhu, Shanghai, CN;
Lifan Yin, Shanghai, CN;
CASCO SIGNAL CO., LTD., Shanghai, CN;
Abstract
A processing method for preventing electromagnetic induction when a main system and a standby system of a safety drive unit co-drive a relay. The method includes the following steps: periodically acquiring and detecting a drive command; detecting a port state of an output port of a safety drive unit when the drive command changes; performing a corresponding processing operation according to the port state of the output port; and repeating the foregoing steps.