Title:
電力計測システム、電圧計測装置、電流計測装置、および電力計測方法
Document Type and Number:
Japanese Patent JP5488072
Kind Code:
B2
Abstract:
A voltage measurement device measures the voltage (S11), and creates voltage information on the basis of the measured voltage data. An approximation formula for obtaining the voltage is devised as the voltage information (S12). Subsequently, the voltage measurement device sends the devised approximation formula to a current measurement device via an interface unit (S13). The current measurement device receives the approximation formula sent by the voltage measurement device via the interface unit (S15). Then, the current measurement device measures the current (S18). The current measurement device applies the time in which the current was measured to the approximation formula, and obtains, from the approximation formula, the voltage at the time in which the current measurement device measured the current (S19). Then, the obtained voltage is multiplied by the measured current to obtain the power (S20).
Inventors:
Hiroshi Saito
Application Number:
JP2010056491A
Publication Date:
May 14, 2014
Filing Date:
March 12, 2010
Export Citation:
Assignee:
OMRON Corporation
International Classes:
G01R21/06; G01R19/00
Domestic Patent References:
| JP2009008580A | ||||
| JP10201140A |
Attorney, Agent or Firm:
Patent Business Corporation Imy International Patent Office
Hidehiko Ito
Morishita Hachiro
Hiroyuki Yoshida
Hidehiko Ito
Morishita Hachiro
Hiroyuki Yoshida