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:
Sep. 20, 2005
Filed:
Feb. 13, 2004
Masashi Sugihara, Hitachinaka, JP;
Masayuki Fukai, Hitachi, JP;
Akio Ito, Hitachi, JP;
Katsuhito Shimizu, Hitachi, JP;
Satoshi Kusaka, Hitachi, JP;
Shigeaki Namba, Hitachi, JP;
Toru Kimura, Hitachi, JP;
Masashi Sugihara, Hitachinaka, JP;
Masayuki Fukai, Hitachi, JP;
Akio Ito, Hitachi, JP;
Katsuhito Shimizu, Hitachi, JP;
Satoshi Kusaka, Hitachi, JP;
Shigeaki Namba, Hitachi, JP;
Toru Kimura, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A monitoring and control system is provided having a control device, arranged in a central controller room, which provides commands to power distribution panel switch gear located in the field. The switch gear transmits and receives controlling and monitoring signals through wireless communication applying an evanescent mode. The switch gear has a power circuit connected to a plurality of devices to be operated. The switch gear is a panel comprising metal and non-metal surfaces, so that a portion of wireless waves in the evanescent mode travel out of the panel. A receiver is provided for monitoring the wireless waves that travel out of the panel. The wireless signals are compared with information stored in a diagnostics database, and are diagnostically evaluated to determine whether the signals are within a known normal operating range.