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:
Apr. 30, 2002
Filed:
Nov. 08, 2000
Takuya Yamada, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An elevator group supervisory system for minimizing decrease of the service quality of an entire elevator system in which input/output information exchanged with hall devices is shared by a group supervisory control apparatus a respective unit control apparatus. The elevator group supervisory system includes a group supervisory control apparatus for supervisory control of respective groups of elevators; respective unit control apparatus for controlling each group of elevators respectively; and a hub with a built-in input/output apparatus section for transmitting information to and receiving information from hall devices by connecting the group supervisory control apparatus and the respective unit control apparatus with a bus communication line, has information exchanged with the hall devices shared by the group supervisory control apparatus and the respective unit control apparatus, transmits information received from the hall devices to the group supervisory control apparatus if the group supervisory control apparatus is operating normally, and transmits information received from the hall devices to the respective unit control apparatus if the group supervisory control apparatus is operating abnormally.