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:
Oct. 15, 2013
Filed:
Feb. 17, 2011
Hiroshi Yamamoto, Nagaoka, JP;
Toshiaki Funakubo, Kawasaki, JP;
Nobutsugu Fujino, Kawasaki, JP;
Hirotaka Oshima, Kawasaki, JP;
Hiroshi Yamamoto, Nagaoka, JP;
Toshiaki Funakubo, Kawasaki, JP;
Nobutsugu Fujino, Kawasaki, JP;
Hirotaka Oshima, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A device that estimates a positional relationship between loads individually connected through sensors to electric power-supply ends provided in a power distribution network includes a communication unit configured to change a resistance value located between each of electric power-supply ends and a ground terminal of each of sensors and measure a voltage value produced between each of the electric power-supply ends and the ground terminal; and a determination unit configured to acquire voltage values from the two selected sensors from among the sensors after a resistance value of one of the two sensors that has a higher acquired voltage value is changed, calculate a ratio between voltage values acquired before and after the resistance value is changed, and determine that the two sensors are connected to a branch circuit in a same system in the power distribution network, when each ratio about the two sensors is within a specified range.