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:
Aug. 20, 2013
Filed:
Jun. 03, 2011
Seong-ho Ju, Daejeon, KR;
Yong-hoon Lim, Daejeon, KR;
Jong-mock Baek, Daejeon, KR;
Moon-suk Choi, Daejeon, KR;
Young-hyun Kim, Daejeon, KR;
No-gil Myoung, Daejeon, KR;
Seong-Ho Ju, Daejeon, KR;
Yong-Hoon Lim, Daejeon, KR;
Jong-Mock Baek, Daejeon, KR;
Moon-Suk Choi, Daejeon, KR;
Young-Hyun Kim, Daejeon, KR;
No-Gil Myoung, Daejeon, KR;
Korea Electric Power Corporation, Seoul, KR;
Abstract
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.