• Title/Summary/Keyword: Home automation networks

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Unsynchronized Duty-cycle Control for Sensor Based Home Automation Networks

  • Lee, Dong-Ho;Chung, Kwang-Sue
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.6 no.4
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    • pp.1076-1089
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    • 2012
  • Home automation networks are good environments for merging sensor networks and consumer electronics technologies. It is very important to reduce the energy consumption of each sensor node because sensor nodes operate with limited power based on a battery that cannot be easily replaced. One of the primary mechanisms for achieving low energy operation in energy-constrained wireless sensor networks is the duty-cycle operation, but this operation has several problems. For example, unnecessary energy consumption occurs during synchronization between transmission schedules and sleep schedules. In addition, a low duty-cycle usually causes more performance degradation, if the network becomes congested. Therefore, an appropriate control scheme is required to solve these problems. In this paper, we propose UDC (Unsynchronized Duty-cycle Control), which prevents energy waste caused by unnecessary preamble transmission and avoids congestion using duty-cycle adjustment. In addition, the scheme adjusts the starting point of the duty-cycle in order to reduce sleep delay. Our simulation results show that UDC improves the reliability and energy efficiency while reducing the end-to-end delay of the unsynchronized duty-cycled MAC (Media Access Control) protocol in sensor-based home automation networks.

Research of Home Application Model for Implementation of Home Automation Server

  • Kim, Yu-Chul;Kim, Hyo-Sup;Lee, Guhn-Song;Cho, Young-Jo
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.70.2-70
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    • 2001
  • This paper presents an application model for home automation control. In this work, we propose home application scenarios that are suitable for the home life style and design a control structure integrating various home automation functions, such as lightning, heating, cooling, security, fire protection, telemetering, entertainment and communication. State-of-the-art wired/wireless home networks such as Bluetooth, LonWorks, IEEE1394 and PLC(Power Line Communication) are included in the control structure.

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Design and Implementation of a Secure Smart Home with a Residential Gateway

  • Kim, Sang-kon;Kim, Tae-kon
    • Journal of Internet Computing and Services
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    • v.23 no.2
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    • pp.9-17
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    • 2022
  • In this paper, we propose a secure smart home network model and a novel cryptographic protocol called the Smart Home Security Protocol (SHSP). Authentication, key distribution, and encryption functions are properly supported in order to make a smart home secure, and a residential gateway (RG) plays a central role in performing these functions. According to the characteristics of networks and attached devices, we classify smart homes into three different types of sub-networks and these networks are interconnected with one another by the RG. Depending on a sub-network, we use different types of secure schemes to reduce the burden of the process and the delay in devices while it provides proper security functions. The proposed secure smart home model is implemented and verified by using a variety of embedded system environments.

An automatic Notification Service Using the OSGi Service Platform and SMS module

  • Kang, Kyu-Chang;Kang, Dong-Oh;Lee, Jeon-Woo
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.55.1-55
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    • 2002
  • In the era of home automation, we need more context-aware and intelligent service applications than before. For these applications, a service gateway as a platform is required to bridge the gap between external data networks to internal home networks. Also, the sonics gateway enables customers to receive new classes of home services. The OSGi service platform is a good solution for the service gateway since it can deliver new applications dynamically from a broader network. In the near future, every home will be equipped with a residential gateway powered by the OSGi, and will demand value-added service applications, such as home security monitoring and safety alerts. In this pa...

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Home Automation Control with Multi-modal Interfaces for Disabled Persons (장애인을 위한 멀티모달 인터페이스 기반의 홈 네트워크 제어)

  • Park, Hee-Dong
    • Journal of Digital Convergence
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    • v.12 no.2
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    • pp.321-326
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    • 2014
  • The needs for IT accessibility for disabled persons has increased for recent years. So, it is very important to support multi-modal interfaces, such as voice and vision recognition, TTS, etc. for disabled persons. In this paper, we deal with IT accessibility issues of home networks and show our implemented home network control system model with multi-modal interfaces including voice recognition and animated user interfaces.

BACnet/ZigBee-based Lighting Control System (BACnet/ZigBee 프로토콜 기반의 조명제어시스템)

  • Chon, Y.J.;Park, T.J.;Park, D.K.;Hong, S.H.
    • Proceedings of the KIEE Conference
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    • 2006.10c
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    • pp.117-119
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    • 2006
  • BACnet(Building Automation and Control networks) is a standard data communication protocol designed specifically for building automation and control systems. BACnet provides five options for datalink layer protocols and these five datalink layer options can be applied with various transmission media. Recently wireless technology prevails in automation area. ZigBee is a standard protocol based on IEEE 802.15.4 for low-speed wireless communication network. In this study, we propose a BACnet/ZigBee model that uses ZigBee wireless technology in a BACnet communication network system as a wireless datalink layer protocol. We also applied this model to a lighting control system to evaluate the feasibility of proposed technology. The technology proposed in this paper can extend the application of BACnet not only for building automation but also for home automation by taking the advantages of ZigBee wireless communication technology in BACnet communication network systems.

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Embedded Tiny Web Server System for Remote Monitoring (원격 감시를 위한 내장형 소형 웹 서버)

  • 안광혁;유영동;홍석교;고영길
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.116-116
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    • 2000
  • This paper describes an experimental embedded tiny web server system that monitors the processing of manufacture using the Internet. The object of this study is developing of an embedded tiny web server that connects the stand-alone machines in factory to the Internet. Using the World Wide Web (WWW), we proffer user-friendly environments to users. Anyone with a web browser may easily access the processing of manufacture in the factory. Through connecting different network system, our web server extends the private networks to the Internet, the global networks. Our embedded tiny web server is ideal for process control, building and facility management system, factory automation and even home automation.

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A study with respect to the home networking security Technology based on SIP (SIP기반 홈네트워킹 보안 기술에 관한 연구)

  • Ham, Yoeng-Ock;Shin, Young-Tae
    • Journal of the Korea Society of Computer and Information
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    • v.14 no.12
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    • pp.169-180
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    • 2009
  • Generally home networks are based on wired network and wireless network. This makes customers be capable of using electric home appliances and full-duplex multimedia services and controlling the machines without any restrictions of place or time. Now that the scope of home security is being extended, the home networks can be formed with not only personal computer but also home automation, electric home appliances, and etc. But this causes many of attacks of invasion and damages. Therefore in this paper we suggest the SSIP(Secure Session Initiate protocol) model for solving those problems. The SSIP model is able to provide an efficient authentication and reduce the time of session re-establishment and set-up by adding ability of SIP authentication to Cluster-to-Cluster environment performed on home gateway.

Frame/Slot Allocation Method for Real-time Traffic in IEEE 802.15.4 Wireless Sensor Networks (IEEE 802.15.4 무선센서네트워크의 실시간 트래픽 처리를 위한 프레임/슬롯 할당방법)

  • Kim, Hyung-Seok
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.44 no.3
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    • pp.49-56
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    • 2007
  • The IEEE 802.15.4 low rate wireless personal area network is a protocol suitable for wireless sensor networks. Thus there has been growing interest in the IEEE 802.15.4 protocol in the home automation networks. This paper proposes a scheduling scheme obtaining optimal parameters regarding the IEEE 802.15.4 frame and subframes in the home automation networks. Guaranteed time slots (GTS) are exploited for the delivery of real-time traffic. Given a set of the requirements for bandwidths and periods assigned to nodes in the network, the beacon interval and the active/inactive subframe duration satisfying the requirements are selected considering the low duty cycle by the proposed scheme. Based on these parameters, analytic results provide the way to efficient use of network resources including energy.

A Study on the Causes of Security Vulnerability in 'Wall Pads' ('월패드'의 보안 취약 원인에 관한 고찰)

  • Kim Sang Choon;Jeon Jeong Hoon
    • Convergence Security Journal
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    • v.22 no.2
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    • pp.59-66
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    • 2022
  • Recently, smart home technology has been developed with a great response due to the convenience of home automation. Smart home technology provides various services by connecting various Internet of Things (IoT) and sensors to a home network through wired/wireless networks. In addition, the smart home service easily and conveniently controls lighting, energy, environment, and door cameras through a wall pad. However, while it has become a social issue due to the recent hacking accident of wall pads, personal information leakage and privacy infringement are expected. Accordingly, it is necessary to prepare preventive and countermeasures against security vulnerability factors of wall pads. Therefore, this study expects that it can be used as basic data for future smart home application and response technology development by examining the weak causes and countermeasures related to wall pads.