• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.8
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• pp.55-63
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• 2017

Due to spatial problems and system size,conventional measurement methods used to acquire the information needed for existing electrical energy and management have been limited to new buildings or areas where replacement is possible. This electric load management method is problematic when applying it to energy and safety management of vulnerable areas or existing homes or offices. The problem with installing a measurement module in every branch is that the system is too large. Even if the measurement module is installed, the type of load is not recognized, and efficient management is not performed. In particular, it is very difficult to apply it to traditional markets and backward facilities in Korea. In this paper, we apply NIALM technology and arc detection technology to solve these problems and verify the feasibility of NIALM for normal arc generation. Also, based on the verification results, we propose a new smart home safety management system that can effectively manage electrical safety and that can be applied to conventional market and existing home safety management systems. The proposed system conducts a comparative performance test with an existing safety management system. In addition, it achieves 95% or more load recognition for four loads, which is impossible in 40% of the existing systems, and the arc detection function was confirmed.

• Smart Media Journal
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• v.12 no.2
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• pp.91-102
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• 2023

The Energy Management System (EMS) communicates with power plants and substations, monitors the substations and plant operational status of the transmission and substation system for stability, continuity, real-time, and economy of power supply, and controls power plants and substations. Currently, the power exchange EMS communicates with power plants and substations based on the serial communication-based Distributed Network Protocol (DNP) 3.0 protocol. However, problems such as the difficulty of supply and demand of serial communication equipment and the lack of installation space for serial ports and modems are raised due to the continuous increase in new facilities to perform communication, including renewable power generation facilities. Therefore, this paper presents a TCP/IP-based communication method instead of the existing serial communication method of the power exchange EMS, and presents a security risk analysis that may occur due to changes in the communication method and a countermeasure to the security risk.

• The Journal of the Korea institute of electronic communication sciences
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• v.19 no.1
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• pp.209-216
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• 2024

Land shrimp farms can control the growth environment more stably than coastal ones, making them advantageous for high-quality, large-scale production. In order to maintain an optimal shrimp growth environment, various factors such as water circulation, maintaining appropriate water temperature, oxygen supply, and feed supply must be managed. In particular, failure to properly manage water quality can lead to the death of shrimp, making it difficult to have people stationed at the farm 24 hours a day to continuously manage them. In this paper, to solve this problem, we design an integrated monitoring system for land farms that can be operated with minimal manpower. The proposed design plan uses IoT technology to collect real-time images of land farms, pump status, water quality data, and energy usage and transmit them to the server. Through web interfaces and smartphone apps, administrators can check the status of the farm stored on the server anytime, anywhere in real time and take necessary measures. Therefore, it is possible to significantly reduce field work hours without the need for managers to reside in the farm.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.6
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• pp.1301-1306
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• 2015

This paper is to automate the intelligent and equipment to recycle the volatile organic compounds in various a gas stations and a laundry, in real life. In addition, based the ZigBee module and TCP/IP communications on ICT technologies, it's propose an integrated management system to monitor and manage an liquid at a remote location.Furthermore, it's propose a service model that can be freely managed from a remote location based on the app on android. In this paper, we present a communication protocol of the bridge modules and a liquefier of intelligent control system based ZigBee and MCU(Micro Controller Unit). Through the development of smart app based android mobile services in an integrated management system, it's represent for liquefier to a DB server for remote management(MS SQL 2012) and a web server (OS: Windows 2008).

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.24 no.2
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• pp.44-50
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• 2010

Recently, the crude oil price per one barrel in 2005 cost 49.4 dollars. But the value of crude oil in 2007 had ascended 68.4 dollars which was skyrocketed 38.5[%] owing to the sudden rise of energy price. As it has been growing the necessity of energy efficiency, energy intentive companies actively try to implement energy management system It has been studied to improve the energy saving for household sector using the smart metering system which can give the information of energy prices, pattern on real time to energy consumers and voluntarily lead the activities of energy saving. In this paper, we estimated potential benefits and value of smart metering system through california test.

• Smart Media Journal
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• v.13 no.2
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• pp.122-128
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• 2024

Today, many companies are using CRM as a means to secure sales opportunities, improve sales pipelines, and increase customer satisfaction. CRM like this improves the quality of corporate management by understanding customer behavior patterns and utilizes the process of change in the organization's work procedures and technology for marketing, sales, and customer service. In this study, we designed and implemented a small CRM using IP PBX to enable small and medium-sized businesses to introduce CRM without economic burden and measured its performance. As a result, we found a small customer management system (SOHO CRM) has proven its performance.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.861-864
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• 2016

이 논문에서는 스마트기기를 활용하여 농작물 재배가 체계적으로 이루어질 수 있도록 하이브리드 앱을 구현하여 사물인터넷 기반의 농작물 관리 시스템 서비스를 제안한다. 사물인터넷 기반 농장 관리 시스템에 관한 다양한 연구가 있었으나 농작물 생장 환경 모니터링을 통한 에너지 절감, 데이터 수집을 통한 활용방안에 대한 연구에 그쳤다. 그 결과 주말농장을 이용하는 도시 농부와 농장주들이 가지고 있는 주말농장의 문제점은 해결되지 않았다. 제안 서비스는 도시 농부와 농장주가 가지고 있는 문제점을 파악하여 체계적인 농작물 재배와 원활한 농장관리 서비스를 모바일 기기에서 제공한다. 특히, 농작물 재배에 필수적인 정보와 위치기반 주말농장 검색기능을 제공함으로써 관리의 정확성과 편의성을 제공한다.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.501-502
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• 2018

ICT기술은 소프트웨어와 하드웨어의 모든 분야에서 비약적으로 발전을 거듭하고 있다. 이에 따라, 기업에서 전통적으로 사용되어 오는 경영정보시스템들도 다양한 형태로 개선되거나 융합되어지고 있다. 특히, 재택근무, 이동근무, 원격 협업 등의 ICT기술 활용하여 시간과 장소에 얽매이지 않고 업무를 수행하는 스마트워크는 기업의 근무행태에 대한 패러다임을 바꿀 것으로 기대를 받고 있다. 본 논문에서는 이러한 스마트워크의 일환으로 BLE(Bluetooth Low Energy Beacon)을 이용한 모바일 형태의 그룹웨어 시스템을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.40-43
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• 2011

본 논문에서는 안드로이드 기반의 스마트폰에서 운전자의 운전 패턴에 따른 연료 소비량을 감소하기 위한 운전 습관을 유도하는 방법을 제안하였다. 이 시스템은 차량의 정확한 내부 상태 정보를 바탕으로 운전 상태를 스마트폰으로 제공한다. 차량의 상태정보를 추출하기 위해서 차량 네트워크인 CAN 버스를 사용하였으며, 이를 하드웨어로 구현하였다. 효율적인 ECO_Driving을 위한 차량 데이터들을 추출하여 분석하였으며, 이들 데이터를 바탕으로 운전자에게 에코여부를 제공하는 애플리케이션을 구현하였다. 이 시스템으로 경제운전으로 배기가스 감축, 에너지절약과 사고 예방을 유도할 수 있다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.10
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• pp.1381-1390
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• 2021

Smart grid is a representative convergence new technology in the era of the 4th industry revolution that deals with three broad security areas consisting of control system, the power grid, and the consumer. As it is a convergence new technology of the 4th industrial society, it is true that it can have a positive effect on the country's technological development, growth engine, and economic feasibility in the future. However, since the smart grid is expected to cause enormous damage in the event of a security accident, energy-related organizations must prepare various security measures to predict and respond to the latest security incidents. In this paper, the current status of domestic and foreign smart grids, trends in security standards, vulnerabilities and threats, and prospects for smart grid security technologies are to be considered.