• Title/Summary/Keyword: power line communication technology

Search Result 294, Processing Time 0.029 seconds

The Construction of AHU Control Network by Power Line Communication (전력선 통신에 의한 공기조화설비 제어네트워크 구축)

  • Kim, Myungho;Ahn, Kyochol
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
    • /
    • v.1 no.2
    • /
    • pp.7-11
    • /
    • 2008
  • In order to enhance standardization and interoperability of local level systems, AHU control network was designed with basement(8 point) and basis story(15 point) and then the network was constructed by power line communication. Each devices of AHU system were programed with neuron C of $L_{ON}W_{ORKS}$ as an open protocol. As a result of a study, each devices of the network were controlled with self dispersion process by $L_{ON}W_{ORKS}$ protocol and wiring could be reduced by power line communication.

  • PDF

Design of Channel Impedance Measurement Equipment for Indoor Power Line Communications (옥내 전력선 통신 채널 임피던스 측정 장치 설계)

  • Heo, Yun-Seok
    • The Journal of Information Technology
    • /
    • v.8 no.3
    • /
    • pp.25-33
    • /
    • 2005
  • This paper describe a method for measuring line impedance as a function of frequency for an energized powerline in normal operation. A small sinusoidal signal of a powerline communication utility frequency 30khz$\sim$1Mhz band is continuously injected into the line, and a implemented impedance analyzer calculates the indoor powerline channel impedance from the measured magnitude and phase of resulting voltage and current. The impedance measurement is executed over a range of frequencies to produce a wideband impedance versus frequency characteristic. Implemented impedance analyzer can analysis powerline communication environments measuring line impedance due to load caused in indoor. And measured analysis information through the database can use to evaluate performance of modem and to decide test environment standard.

  • PDF

A Study on the Implementation of 9.6Kbps Power Line Communication System for Smart Home (스마트 홈용 9.6Kbps급 전력선 통신 시스템 구현에 관한 연구)

  • Kim, Chul;Jeong, Young-Hwa
    • The Journal of Information Technology
    • /
    • v.6 no.4
    • /
    • pp.81-91
    • /
    • 2003
  • This paper is concerned with the implementation of power line communication system with 9.6Kbps. This system is suitable to establish the smart home using the power line having been installed in house. In the suggested power line communication system, we use the chirp signal with a linearity and spread spectrum frequency band of 100KHz~200KHz. We had the performance experiment for the implementation system. The experiment was achieved in the pseudo load network similar to real circumstance of power line communication. As the result, the communications under the circumstance were accomplished satisfactorily. We confirmed that the suggested 9.6Kbps power line communication system with the Chirped-SS method had the performance enough to commercialize the smart home.

  • PDF

Development of a Lighting Control Switch Using Power Line Communication Technology (전력선 통신기술을 이용한 조명제어 스위치의 개발)

  • Song Jae-yong;Moon Seung-bo;kil Gyung-suk;Lee Gyung-soo;Kim Chang-yul
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.9 no.4
    • /
    • pp.792-797
    • /
    • 2005
  • Lighting control switches based on the power line communication technology are developed and extended to incorporate dimming control to provide energy saving and appropriate illumination. The developed switch uses a general purpose microprocessor and associated electronics. Both the power line communication and the dimming function are implemented in one microprocessor, and it enables the low price commercialization. The frequency of the carrier was set at 250kHz considering the transmission data length and signal attenuation in power lines. Tests on prototypes in an low-voltage power lines have shown that the switches have a robust operation characteristics with the length of power lines and the variation of load capacities.

Implementation of Ship Area Network NMEA protocol Bridge Based on Power Line Communication (전력선통신 기반의 선박용 M모A 프로토콜 브릿지 구현)

  • Kim, Gwan-Hyung;Kang, Sung-In;Jeon, Jae-Hwan;Kwon, Oh-Hyun;Oh, Am-Suk;Cho, Hyun-Cheol
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.14 no.11
    • /
    • pp.2419-2422
    • /
    • 2010
  • The current marine internal communication systems are usually composed of NMEA0183, NMEA2000, and MiTS protocols which are located on the physical layer based on RS-422, RS-485, CAN, and EtherNet. However, general vessel communication method have a weak point that must establish the extra private line. But, the power line communication has advantage over general vessel communication method as it uses AC220V/DC24V without changing line. Therefore, we will propose a new bridge based on the DC-PLC(power Line communication) technique which support the NMEA0183 protocol inside vessel network systems.

Study on Design and Application of an Inductive Coupler for Power Transmission Line (송전선용 비접촉식 커플러의 설계와 적용연구)

  • Kim, Hyun-Sik;Lee, Dong-Chul;Kim, Min-Ho;Lee, Gean;Oh, Young-Woo;Min, Byung-Hoon
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
    • /
    • v.23 no.3
    • /
    • pp.234-239
    • /
    • 2010
  • An inductive coupler, which feeds communication to the electric power transmission line, is required to establish Power Line Communication(PLC). The electro-magnetic property of magnetic core and design technology for coupler are very important to manufacture an inductive coupler for power transmission line. The magnetic core with superior electro-magnetic property was manufactured by using nanocrystalline alloy and an inductive coupler, which can operate at the maximum 2,000 A current, was designed and manufactured by establishment of current saturation, signal out winding, and electromagnetic simulation in this study. Communication speed of 14 Mbps in 600 meter communication distance of the real electric power transmission line was obtained by using the inductive coupler and application possibility of the inductive coupler for the electric power transmission line was certified.

Design of an Inductive Coupler for Power Transmission line (송전선용 대용량 신호결합장치의 설계)

  • Kim, H.S.;Byun, W.B.;Kim, J.R.;Bae, E.R.;Lee, D.C.;Lee, H.Y.;Lee, J.H.;Ji, M.K.
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 2008.11a
    • /
    • pp.439-440
    • /
    • 2008
  • An inductive coupler, which feeds communication to the electric power transmission line, is required to establish Power Line Communication(PLC). The electro-magnetic property of magnetic core and design technology for coupler are very important to manufacture an inductive coupler for power transmission line. The magnetic core with superior electro-magnetic property was manufactured by using nano-crystalline alloy and an inductive coupler, which can operate at the maximum 2,000 A current, was designed and manufactured by establishment of current saturation, signal out winding, and electro-magnetic simulation in this study. Communication speed of 14 Mbps in 600 m communication distance of the real electric power transmission line was obtained by using the inductive coupler and application possibility of the inductive coupler for the electric power transmission line was certified.

  • PDF

Performance evaluation and Modeling for 500Kbps Digital Power Line Communication System (500Kbps급 디지털 전력선 통신 시스템의 모델링과 성능분석)

  • Kim, Bum Gyu;Choi, Sung Hwan;Kwon, Ho Yeol
    • Journal of Industrial Technology
    • /
    • v.18
    • /
    • pp.431-437
    • /
    • 1998
  • In this paper, we presented a modeling of the power line channel and a new digital communication system over the channel. Firstly, we proposed a new tranceiver structure with DS-CDMA spread spectrum technique and convolutional coder and block interleaver against severe noisy power line environment. Also, QPSK modulation technique was used to get bandwidth efficiency. And then we performed a simulative evaluation of the system using MATLAB communication/simulink toolbox. According to the simulation results, the proposed system gives $10^{-6}$ BER at 20dB SNR.

  • PDF

Development of a Lighting Control Switch Using Power Line Communication Technology (전력선 통신기술을 이용한 조명제어 스위치의 개발)

  • Song, Jae-Yong;Seo, Hwang-Dong;Moon, Seung-Bo;Kil, Gyung-Suk
    • Proceedings of the Korean Society of Marine Engineers Conference
    • /
    • 2005.06a
    • /
    • pp.299-303
    • /
    • 2005
  • A lighting control switch, extended to incorporate a power line communication technology, is developed. The system uses not an exclusive microprocessor but a general one, and developed PPM protocol. The coupling circuit is a type of an isolation LC filter, and the impedance of the circuit was designed as low as possible to extend signal transmission distance. The frequency of the carrier, considering the data length and signal attenuation as the length of power lines, was set at 250 kHz. Tests on a prototype in an indoor power lines have shown that the switch has a stable operation with the distance of power lines

  • PDF

A Study on Home Telemetering System using Power Line Communication (전력선 통신을 이용한 가정용 원격 검침 시스템에 관한 연구)

  • Yu Yung-Ho;Shin Il-Sik
    • Journal of Advanced Marine Engineering and Technology
    • /
    • v.29 no.6
    • /
    • pp.678-684
    • /
    • 2005
  • In this Paper telemetering system for home automation is Proposed and implemented. Proposed and developed systems are composed with a home server and a few clients which send metering data of gas electric power water and home security to home server using power line communication. Management computer located in office of apartment complex collects all kinds of measured home data from each home server with multi drop communication by UDP Protocol A simple ASK method is used for power line communication Collected data from each home can be used for issuing the bill of each house and web service. The experiments were carried out under laboratory environment using various kinds of electric home appliances to ascertain the performance.