Login| Sign Up| Help| Contact|

Patent Searching and Data

Document Type and Number:
Japanese Patent JP2007151394
Kind Code:

To provide a digital protection controller that improves protection control performance while efficiently executing data transmission/reception inside equipment.

The digital protection controller is composed of a digital data integration means connected with sensor units by a communication means, a protection control means, a communication means for an equipment controller, which is connected with equipment controllers by a communication means, and a process bus communication means. The means constituting the digital protection controller are at least partially connected by a parallel transmission medium. At least a part of the data transmission/reception is executed by a multi-master system. Transmission in the multi-master system is employed so as to allow each means to independently transmit/receive data. Thus, it is possible to reduce imbalance between communication loads. As a result, it is possible to reduce the risks of deterioration in time responsiveness of operation of the digital protection controller as a whole due to unbalanced concentration of data bus processing in a specific means.

Minami, Yuji
Suga, Noriyoshi
Nagasaki, Hiromi
Kosakata, Masayuki
Application Number:
Publication Date:
June 14, 2007
Filing Date:
February 05, 2007
Export Citation:
Click for automatic bibliography generation   Help
International Classes:
H02H3/02; G05B19/418; H02H1/00; H02J3/00; H02J13/00
Attorney, Agent or Firm:
須山 佐一