Korea Electric Power Corporation

Jong-Mock Baek

No-Gil Myoung

Jung-Ho Lee

Seong-Ho Ju

Young-Hyun Kim

Byung-Seok Park

Han-Jin Cho

Yong-Hoon Lim

Jun-Su Shim

Moon-Suk Choi

Byung-Kab Jo

The present invention relates to a system for performing phase detection and synchronization in an AMI communication network using a relay communication, and a method thereof. According to an embodiment of the present invention, a system for performing phase detection and synchronization in an AMI communication network using a relay communication includes an AMI server for collecting a 'reference zero-crossing detection (ZCD) time difference by phase' of input/output terminals of a main transformer installed in a substation; and a data concentration unit (DCU) comparing the 'reference ZCD time difference by phase' transmitted from the AMI server with a &#x2018;ZCD time difference by phase&#x2019; collected by itself, and matching the same to have a time difference close to an error range.

AMI system for performing phase detection and synchronization in AMI communication network using relay communication method, and method thereof

The present invention relates to a security system using an automatic meter reading protocol. The security system includes a Device Language Message Specification (DLMS) transmission unit for transmitting security DLMS data that includes security key update information and a first authentication value, and a DLMS reception unit for receiving the security DLMS data, searching the security key update information in the security DLMS data, and generating an updated security key using a second authentication value according to the security key update information. The security system can solve various problems occurring due to the operation of a separate security protocol, and can be easily implemented and managed.

Security system and method using automatic meter reading protocol

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Naju-si, South Korea

Jong-Mock Baek