• Title, Summary, Keyword: AMI

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A study on the Design and Implementation of Simulator adapted in AMI Network environment (AMI 네트워크 환경에 적합한 시뮬레이터 설계 및 구현에 관한 연구)

  • Yang, Il-Kwon;Jung, Nam-Joon;Lee, Sang-Ho
    • The KIPS Transactions:PartA
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    • v.18A no.6
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    • pp.281-292
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    • 2011
  • In this paper, a simulator adapted in AMI network environment with NS-2 was designed and implemented. The limited AMI operation environment such as processing times of data, network protocol and system performance can be simulated to find out the optimal AMI formations. Consequently, it is simulated under conditions that are closely analogous to the actual networks and each device. In future, the result of simulation would be applied to AMI network, mitigated the waste of resources and much contributed towards the real optimal AMI deployments in utilities.

An Empirical Research on the IoT Basis Gas AMI Platform and Smart Metering Services (IoT 기반 가스 원격검침(AMI) 플랫폼과 서비스의 실증 연구)

  • Lee, Seungwoo;Lee, Sangshin;Song, Min-hwan;Kwon, Youngmin
    • Journal of the Korean Institute of Gas
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    • v.24 no.3
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    • pp.1-10
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    • 2020
  • This paper describes the development of a smart advanced metering infrastructure(AMI) architecture and services for using smart metering in gas industry. A general gas AMI system is composed of a smart gas meter, IoT network, the AMI platform, and an operation management system with security functions. The proposed gas AMI platform supports two-way communication between smart metering devices and AMI services and is applied by oneM2M standard to support interoperability between various types of metering devices and heterogeneous IoT networks. To demonstrating AMI system with the proposed platform, we installed about 2,900 smart gas meters in real environments and operated AMI systems for one year. We verified that about 94% of gas meters are normally worked and AMI services are stably operated without error or malfunction.

Separate Networks and an Authentication Framework in AMI for Secure Smart Grid (스마트그리드 보호를 위한 AMI 망 분리 및 인증 프레임워크)

  • Choi, Jae-Duck;Seo, Jung-Taek
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.22 no.3
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    • pp.525-536
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    • 2012
  • This paper proposes methods of securing Smart Grid system against various types of cyber threats by separating AMI networks from the public network, the Internet, and providing an AMI specific authentication framework. Due to the fact that thousands and millions of AMI devices to be deployed would be directly or indirectly connected to the public network without any authentication procedures for access control, currently being developed AMI architectures could be widely exposed to considerable number of penetrating attacks. Furthermore, there have not been a sufficient number of researches on authentication frameworks with basis on the specific circumstances of AMI networking that should support varied authentication protocols among security associations and AMI linking devices. This work makes a proposal of isolating smart meters from HAN devices and the Internet and integrating network/application level authentication frameworks with an EAP-based authentication architecture. These approaches are beneficial to deploy AMI with security and efficiency.

A Study on Security of AMI(Advanced Metering Infrastructure) in SMARTGRID (스마트 그리드에서의 AMI 보안에 관한연구)

  • Kim, Yeoun-Soo;Kim, Jin-Cheol;Ko, Jong-Bin;Shon, Tae-Shik
    • The Journal of Advanced Navigation Technology
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    • v.16 no.6
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    • pp.1014-1023
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    • 2012
  • Recently with improvement of SMART Grid, AMI network security has been affecting the environment for Electric information and communication. The system and communication protection consists of steps taken to protect the AMI components and the communication links between system components from cyber intrusions. The addition of two way communications between SUN and HAN introduces additional risk for unauthorized access to the AMI system. In this paper, we propose new AMI device authentication infrastructure, key establishment and security algorithm based on public key encryption to solve AMI network security problems.

A Wireless Network Structure and AKA(Authentication and Key Agreement) Protocol of Advanced Metering Infrastructure on the Smart Grid based on Binary CDMA (스마트 그리드를 위한 Binary CDMA 기반의 AMI 무선 네트워크 구조 및 AKA 프로토콜)

  • Jeon, Jae-Woo;Lim, Sun-Hee;Yi, Ok-Yeon
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.20 no.5
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    • pp.111-124
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    • 2010
  • AMI (Advanced Metering Infrastructure) is a core infrastructure of Smart Grid, and is promoting in various country. Wireless network is considered for cost savings and operational efficiencies in AMI. But various security problems are expected in wireless networks of AMI, so we should solve these problems. In this paper, we suggest a wireless network of AMI by using Binary CDMA and security countermeasures of AMI wireless network. Proposed security architecture is using BSIM (Binary Subscriber Identity Module) to perform user authentication and key agreement for the encryption and decryption over radio network to reduce security threats.

Introducing the Latest 3GPP Specifications and their Potential for Future AMI Applications

  • Koumadi, Koudjo M.;Park, Byong-seok;Myoung, Nogil
    • KEPCO Journal on Electric Power and Energy
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    • v.2 no.2
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    • pp.245-251
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    • 2016
  • Despite the exponential throughput improvement in mobile communications systems, their ability to satisfy requirements of state-of-the-art and future applications of advanced metering infrastructure (AMI) is still under investigation. Challenges are mainly due to the inadequacy of third generation partnership project (3GPP) networks to support large amounts of devices simultaneously, while the number of AMI end-devices and the frequency of their data transmission increase with new AMI-based applications. In this introductory survey, innovative and future AMI applications and their communication requirements are first reviewed. Then, we identify challenges of 3GPP long term evolution (LTE) in enabling future AMI applications. More importantly, the latest improvements to LTE-A standard release 12 and 13 are reviewed and analyzed with regards to their potential to improve the quality of LTE-enabled AMI. It is found that 3GPP enhancements on machine type communications (MTC) standards will significantly enhance AMI communications. Beyond MTC specifications, non-MTC-specific enhancements such as carrier aggregation and multi-connectivity for user equipment will also contribute greatly to improving reliability and availability of AMI devices. The paper's focus is towards improved backhaul support for innovative and future AMI applications, beyond traditional automatic meter reading.

Development of AMI NMS (Network Management System) using SNMP for Network Monitoring of Meter Reading Devices (원격검침 설비의 네트워크 상태감시를 위한 SNMP 기반의 저압 AMI 망관리시스템 개발)

  • Kim, Young-Il;Park, So-Jeong;Kim, Young-Jun;Jung, Nam-Jun;Choi, Moon-Suk;Park, Byung-Seok
    • KEPCO Journal on Electric Power and Energy
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    • v.2 no.2
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    • pp.259-268
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    • 2016
  • KEPCO installed AMI (Advanced Metering Infrastructure) metering system for low-voltage customers from 2008. AMI metering system of KEPCO has operated 2.55 million customers and will plan to operate 22 million customers until 2020. KEPCO developed AMI NMS (Network Management System) to operate the meter reading network efficiently. NMS monitors the network status of DCUs (Data Concentration Unit) and modems. NMS provides functionalities of data collection and analysis. It collects property data of network device, network topology information, communication performance information, fault information, and etc. It analyzes collected data and controls network devices by remote access. AMI NMS collects about 370 MIBs (Mangement Information Bases) using SNMP (Simple Network Management Protocol). This paper introduces main functionalities, designed context, and implemented service screen.

Isolation of N-Acetylmuramoyl-L-Alanine Amidase Gene (amiB) from Vibrio anguillarum and the Effect of amiB Gene Deletion on Stress Responses

  • Ahn Sun-Hee;Kim Dong-Gyun;Jeong Seung-Ha;Hong Gyeong-Eun;Kong In-Soo
    • Journal of Microbiology and Biotechnology
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    • v.16 no.9
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    • pp.1416-1421
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    • 2006
  • We identified a gene encoding the N-acetylmuramoyl L-alanine amidase (amiB) of Vibrio anguillarum, which catalyzes the degradation of peptidoglycan in bacteria. The entire open reading frame (ORF) of the amiB gene was composed of 1,722 nucleotides and 573 amino acids. The deduced amino acid sequence of AmiB showed a modular structure with two main domains; an N-terminal region exhibiting an Ami domain and three highly conserved, continuously repeating LysM domains in the C-terminal portion. An amiB mutant was constructed by homologous recombination to study the biochemical function of the AmiB protein in V. anguillarum. Transmission electron microscopy (TEM) revealed morphological differences, and that the mutant strain formed trimeric and tetrameric unseparated cells, suggesting that this enzyme is involved in the separation of daughter cells after cell division. Furthermore, inactivation of the amiB gene resulted in a marked increase of sensitivity to oxidative stress and organic acids.

지그비 기반 AMI에서의 보안 특성 및 요구사항 분석

  • Jeon, Yong-Hee
    • Review of KIISC
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    • v.20 no.5
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    • pp.56-64
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    • 2010
  • AMI는 스마트 그리드 구축을 위한 핵심 기술로, 현재의 단방향 폐쇄적 에너지 공급에서 양방향 에너지 종합관리시스템 구축을 위한 기반 기술이다. 스마트 미터 및 AMI 구축을 통하여 전기요금에 대응하여 에너지를 절약하는 가전 기기 보급 및 부하 관리가 실현되고, 최대 전력의 감소를 통하여 추가적인 발전소 건설비용이 절약되게 된다. Zigbee는 AMI 통신 구현을 위한 표준 기술로 개발되고 있다. 본 논문에서는 Zigbee 기반 AMI 시스템에서 AMI 시스템의 보안 특성 및 보안 요구사항에 대한 분석 결과를 제시하고자 한다.

A Study on Device Security Technique for AMI System (AMI 보안적용을 위한 기기보안 기술에 관한 연구)

  • Onn, Inn-Seok;Lee, Seong-Hun;Lee, Seung-Won
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.206-207
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    • 2016
  • AMI 기술은 스마트 미터의 검침 데이터를 수집하고 이에 대한 전력사용 정보를 수용가에게 제공하는 지능화된 전력 네트워크 시스템이다. AMI 네트워크는 공개된 통신망에서 양방향 네트워크 기술을 사용하기 때문에 데이터 전송에 대한 데이터의 신뢰성이 무엇보다 중요하다. 일반적인 AMI 통신망 구조에서는 악의적인 사용자의 공격에 노출되어 다양한 종류의 피해 사례가 발생할 수 있다. 따라서 본 논문에서는 AMI 시스템 기기에 대하여 안전한 데이터 송수신을 위한 보안적용 기술에 대하여 기술한다.