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, 2003
Filed:
May. 19, 2000
Yasuyuki Miyajima, Fuchu, JP;
Yukihiko Tomizawa, Toda, JP;
Yoshihiro Ito, Kawasaki, JP;
Tsuyoshi Kaneko, Hachioji, JP;
Akira Hirahara, Tama, JP;
Hiroshi Nakatani, Yokohama, JP;
Takatoshi Kato, Chigasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A distributed control device in a decentralized supervisory control system comprises an I/O interface, a data storage section for storing PIO data from a controller and additional information such as data obtention time, a time obtention section for adding a time to the data when the data is stored in the data storage section, a data distribution section for distributing the PIO data and other supervisory information, a supervisory control section for carrying out supervisory control using the PIO data from the controller, a network interface for communicating with other distributed control devices and the supervisory device, and a communication section for connecting this distributed control device to the other distributed control devices and the supervisory device.