• Proceedings of the KIEE Conference
• /
• 2001.07d
• /
• pp.2616-2618
• /
• 2001

본 논문에서는 홈 오토메이션용 제어 통신망에 널리 사용되는 Ethernet, CEBus, Lonworks 통신규약에 대해서 성능을 분석하고 이를 평가한다. 각 통신시스템의 MAC 규약을 살펴보고 시간 해석에 관한 분석을 제시한다. 본 논문에서는 평균 지연 시간, 네트워크 이용률, 전송 성공 확률 등을 성능분석의 지표로 사용한다. 이를 이용하여 각 통신 규약에 대해 시뮬레이션 결과를 비교, 분석한다.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.15 no.2
• /
• pp.87-96
• /
• 2001

This paper proposes a new internet Web based concept & design method and implementation of LonWorks network system for remote intelligent control. The Experimental LonWorks network system using i·LON Web server is designed and fabricated. It is also verified that the developed control modules with LonTalk protocol have available inter offerable, reliable performance characteristics from the experimental results, Especially, the results provide a available technical data for remote home, building & plant automation control.

• Proceedings of the KIPE Conference
• /
• 2001.07a
• /
• pp.471-474
• /
• 2001

In this paper, a communication system that is not using the communication line but power line is presented. It will be very useful for an information-oriented society with tole-metering and home automation. Conventional system has a difficulty in transmitting information due to decreasing communication voltage. Proposed idea is a special type switching amplifier system which has a low inner resistance and using high efficient ferrite core in a coupling circuit. This new system is proposed to overcome the loss of conductor load and coupling circuit in a PLC system.

• Journal of information and communication convergence engineering
• /
• v.11 no.1
• /
• pp.12-16
• /
• 2013

Sensor network is one of the strongest technologies for various applications including home automation, surveillance system and monitoring system. To ensure secure and robust network communication between sensor nodes, plain-text should be encrypted using encryption methods. However due to their limited computation power and storage, it is difficult to implement public key cryptography, including elliptic curve cryptography, RSA and pairing cryptography, on sensor networks. However, recent works have shown the possibility that public key cryptography could be made available in a sensor network environment by introducing the efficient multi-precision multiplication method. The previous method suggested a broad rule of multiplication to enhance performance. However, various features of sensor motes have not been considered. For optimized implementation, unique features should be handled. In this paper, we propose a fully optimized multiplication method depending on a different specification for sensor motes. The method improves performance by using more efficient instructions and general purpose registers.

• Proceedings of the Korean Information Science Society Conference
• /
• 2010.06b
• /
• pp.157-161
• /
• 2010

최근 자동화 시스템의 연구가 활발히 진행되고 있다. 그중에서도 홈오토메이션의 가장큰 특징은 전자 자동기기 등이 주가 되는 가사의 관리를 자동화 하는 것이다. 사용자의 현재 상황 및 선호도 등의 정보를 이용하여 서비스를 사용자에게 제공하는 개인화 서비스는 사용자 프로파일에 따라 차별화 되어서 제공되어 진다. 하지만 현실상의 사용자 프로파일을 수집하기에는 어려움이 따르기 때문에 본 논문에서는 개인화 서비스를 효과적으로 지원할 수 있도록 가상의 사용자 프로파일을 다루는 사용자 프로파일 생성기 데이터베이스를 설계 및 사용자프로파일 생성기를 구현하였다.

• Journal of the Korean Society for Precision Engineering
• /
• v.21 no.9
• /
• pp.56-62
• /
• 2004

Recently, necessity and usage of the teleoperation have been increased in various fields from industrial automation to home application. Also, the internet is considered as a strong candidate far the transmission media of signals. However, it has an irregular transmission time delay and causes critical problems such as instability and poor performance. This paper presents a practical internet teleoperation system with a streaming buffer system which makes a variable time delay fixed. Validity of the proposed system is demonstrated by implementing the embedded system on a HILS(hardware in the loop system) which models a two-wheel mobile robot.

• The Journal of The Korea Institute of Intelligent Transport Systems
• /
• v.7 no.5
• /
• pp.139-146
• /
• 2008

Wireless sensor network-related application system can perform functions such as environmental pollution monitoring, building control, home automation in future. In this paper, we present wireless sensor network based system for subway station in order to reduce the damage of the people and the subway station due to fire. Sensor nodes in this system can sense temperature, illumination, smoke, and human body in real time and detect the accident in the subway station. These real-time sensing and wireless networking minimize casualties and damage to property.

• International conference on construction engineering and project management
• /
• 2005.10a
• /
• pp.497-502
• /
• 2005

Needs of automation and computerization in the construction industry has been recognized but the implementation of e-business solutions with project management systems has not been fully explored. In order to cope with different management practices in home office and project sites, integration of two popular systems, Enterprise Resource Planning (ERP) and Project Management System (PMS) is essential. The objective of this study is to find ways to functionally and systematically integrate ERP and PMS. With the integration of ERP and PMS, a project will be managed much more efficiently and effectively. It is expected that this study will benefit system integrators and help them to understand construction management processes and integrate the solutions with minimized programming work.

• ETRI Journal
• /
• v.44 no.1
• /
• pp.155-167
• /
• 2022

The Internet of Things (IoT) is a new paradigm that connects physical and virtual objects from various domains such as home automation, industrial processes, human health, and monitoring. IoT sensors receive information from their environment and forward it to their neighboring nodes. However, the large amounts of exchanged data are vulnerable to attacks that reduce the network performance. Most of the previous security methods for IoT have neglected the energy consumption of IoT, thereby affecting the performance and reducing the network lifetime. This paper presents a new multistep routing protocol based on cellular learning automata. The network lifetime is improved by a performance-based adaptive reward and fine parameters. Nodes can vote on the reliability of their neighbors, achieving network reliability and a reasonable level of security. Overall, the proposed method balances the security and reliability with the energy consumption of the network.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2021.11a
• /
• pp.1051-1054
• /
• 2021

본 시스템은 홈 CCTV 를 이용해 집 안 사용자의 감정인식, 행동인식을 통해 스마트홈 자동화할 수 있는 시스템으로, 인식된 감정에 맞춰 음악 재생, 조명 조절을 하거나 간단한 동작만으로 IoT 단말을 컨트롤 한다. 또한 실시간으로 IoT 장비들이 동작할 수 있도록 마이크로 서비스 아키텍처로 감정인식과 행동인식 서비스를 설계하여 구현하는 것이 특징이다. 이는 스마트홈 내에서 더 편리하고 가치 있는 집안 환경을 구현할 수 시스템을 제공한다.