2000 7 13 14 High Speed Power Line

2000. 7. 13(목) ~ 14(금) High Speed Power Line Communication Technology Public Networks Dr. KIM YOHEE Power Telecom Research Group KERI(Korea Electrotechnology Research Institute) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

차례 - Introduction, Background - PLC High Speed Services - Power Line Characteristics - PLC Development Status - PLC Standard Status - Regulation - Summary Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Why Power line Technology, Why Now PLC High Speed Services Home Networking 요구 증대 Home Automation 요구 증대 Multiple PC SOHO Network Internet Electrical Meter(AMR) Internet Appliance 기존 댁내망의 한계 및 제한성 디지털가전, 네트워크가전 정보가전, 인터넷트가전 Home Entertainment 요구 증대 개발 도상국의 통신 인프라 구축 Game Powerline Telephony 서비스 시급 Music(CD-Quality), Video(DVD) 동남아, 중국 등 후진 개발 도상국 겨냥 Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Home Network Need (2) In-Home Data Network Multiple PC Internet Access File, Peripheral Sharing In-Home A/V Network Digital consumer electronics Connectivity for A/V devices In-Home Control Network Security HVAC “Next Battlefield” Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr * HVAC : Heating, Ventilation and Air Conditioning KERI

The Market Opportunity Source: Frost & Sullivan, Sep. 1999 70. 0 Homes On Line Multi PC Homes Home Networks 60. 0 50. 0 Units in Millions 40. 0 30. 0 20. 0 10. 0 1998 1999 2000 2001 2002 2003 2004 The availability of powerline infrastructure make it the ideal candidate to support home networks Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

High Speed Internet Subscriber TOTAL Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

(단위 : 천) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Power Line Characteristics PLC-merits Why PLC • Coverage - Most extensive “wire” network • Mordernity - Modern and better maintained • Cost effective –Using the existing power lines • Easy-to-adopt by consumer –Easy to install • Ubiquitousness –Multiple outlets in almost every room • Available worldwide Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

PLC-demerits Power lines are designed for delivering power not data It takes a sophisticated modem to communicate reliably Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Power Line characteristics(1) Varing characteristics - Time-varying characteristics Time varying gain Time varying impedance - Inter-symbol interference due to multimath Attenuation - Depend on propagation length (10~50 d. B/Km) - Low impedance electric appliances (sink) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Power Line characteristics(2) Noise – Background white noise • Generated by universal motors (drill, mixer, …) – Noise synchronous to 50/60 Hz • Silicon controlled rectifier of light dimmer – Periodic noise • Screen scanning of TVs and PC monitors – Random impulse noise • Load switching in power line networks Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Time varying gain at different frequencies I Load : Lamp Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Time varying gain at different frequencies II Load : Rectifier Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Time varying impedance Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Variation of noise in time • Mean of noise level at day and night Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr • Standard deviation of noise at day and night KERI

Background noise Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Channel Frequency Response (small number of taps) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Channel Frequency Response (high number of taps) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Measured Attenuation at different distances in the Access Network Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

PLC Development Status I – 저속 전력선 통신 기술 제어용 : 수십bps - 10 Kbps – 응용분야 • 조명제어(Dimming), 배전선 제어용(1200 bps), 홈 오토메이션, 수용가 전력제어 등 – 주요업체 • 국외 : X 10, ITRAN, Echelon • 국내 : PLANET Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

PLC Development Status II – 고속 전력선 통신 기술 데이터통신용 : 10 Kbps - 1 Mbps – 응용분야 • 무인자동검침, 정보가전, 인터넷 통신 등 – 주요업체 • 국외 : Echelon, Intellon, ITRAN, Alcatel, Intellogis, Phonex-Borad Band, Poly. TRAX, Power. Tec, NAMS, ASCOM • 국내 : Keyin Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

전력선통신 방식 비교 국내 구분 X 10 CEBus Lonworks 통신속도 60 bps 1 Mbps 2 Kbps 1. 25 Mbps 제어기기수 256 64 node 32258 (127 X 254) 통신방법 단방향 양방향 양방향 소비전류 30 m. A 이하 300 m. A 이상 50 m. A 30 m. A 이하 가격 저가 고가 고가 저가 저가 MAC 없음 CSMA/CDCR Lon. Talk (CSMD/CA) MAC-chip IEEE 802. 3 CDMA/CDCR Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KEYIN PLANet 1~2 Mbps 360 bps/ 9. 6 Kbps/ 65536 KERI

협대역 전송방식 Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

전송방식 - X 10 • • 전원 주파수 동기식 PLC(Power Line Carrier) 방식 Carrier frequency : 120 KHz Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

전송방식 - CEBus – SS(Spread Spectrum) 방식 – Carrier 신호 : Chirp (100 -400 KHz) – 두가지 변조방식 1) Preample Encoding ASK(Amplitude Shift Keying) superior state : presence of the chirp inferior state : absence of the chirp 2) Packet Body Encoding PRK(Phase Reversal Keying) superior 01 phase state : phase 1 superior 02 phase state : phase 2 Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Preample Encoding 1) superior state “ 1” 인 경우 114 us = 100 us(symbol time) + 14 us(quite time) 2) superior state “ 0” 인 경우 228 us = 200 us(symbol time) + 28 us(quite time) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Packet Body Encoding Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

전송방식 - Lonworks – – BPSK 방식 (Echelon : PLT 20) BPSK + DSSS(Direct Sequence SS) 방식 (Echelon : PLT 10, PLT 30) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

전송방식 - Z 256 • • 전원 동기식 PLC(Power Line Carrier) 방식 Carrier frequency : 120 KHz Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

PLC Standard Status Home Network Standards 종류 Wire 표준 최대전송거리 Home. PNA v 2. 0 1~2/10 Mbps 150 m USB v 1. 1 10 Mbps 30 m Ethernet IEEE 802. 3 10/100 Mbps, 1 Gbps 100 m(UTP) HAVi(IEEE 1394) IEEE 1394 100~400 Mbps 72 m X-10. CEBus Lonwork 등 ~ 수 10 Kbps 100 m 저속 Powerline 고속 Wireless 전송속도 - 10 Mbps Bluetooth v 1. 0 720 Kbps 10 m Home. RF SWAP v 1. 2 1~2 Mbps 50 m Ir. DA v 1. 3 Max 4 Mbps 1 m Wireless LAN IEEE 802. 11 5. 5~11 Mbps 50 m Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Power Line Forum Setup PLC-Forum (Europe, 2000. 3. 23) Alcatel Microelectronics ENICA INC Phonex Broadband Europe Analog Device Eutelis Consult Gmb. H Poly. Trax Information Techn. AG Ascom Powerline Com. AG EWE TEL Gmb. H Power. TEC AG Bmp Telecommunication Consultants INARI INC Power Trunk Corp. CETECOM/CT Services Gmb. H Intellon Corporation RWE Energy AG Cisco Systems ITRAN Communications, Ltd. S. Siedle & Sohne Stiftung & Co Contactica Ltd. Jyvaskylan Energia OY Sydkraft DS 2 Design of Systems on Silicon, S. L KURTOSIS Ingenierie S. A Telebel Gmb. H EDF Mainnet Ltd Tesion Telekommnikation EICHHOFF Gmb. H Morgan Stanley Dean Witter Texas Instrument Deutschland Gmb. H En. BW AG NESA A/S VEW EUROtest Gmb. H Endesa Services S. L Oneline AG Vikan Energinett AS Enel. it Spa ONI Telecom White Box Solutions Ltd. Ener. Search AB Philips Gmb. H CES Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Power Forum Setup The Homeplug Power Line Alliance (U. S. A, 2000. 4. 11) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Home. Plug Roadmap Selection of 1 st Generation Baseline Technology Home. Plug Formed Mar Apr Home. Plug Announced Open to New Members Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr May Establish Certification Lab June July Aug Sept Completion of the Home. Plug v 1. 0 Specifications First Products to Market KERI

전체 시스템 구성도(1) 옥내 전력선 망의 구성도 Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

전체 시스템 구성도(2) 옥외 전력선 망의 구성도 Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

저압 3상 4선식(220/380 V)-아파트 및 빌딩 Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Regulation Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

FCC (Federal Communications Commission’s Rule) Part 15 : f : below 490 KHZ JAPAN - 전파법 제 8장 잡칙, 제 100조 고주파 이용설비 - 전파법 시공규칙 44조 - 주파수대역 : 최대450 KHZ - 출격전력 : 최대 10 mw - 통신속도 : 9600 bps Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

ETSL. CENELEC Radiation Measurement - Distance : 10 m - Measurement Bandwidth : 9 KHz - Maximum Allowed Radiation : 50 d. Bµv/m - Signal Allocation : 1. 6 ~ 30 MHz Power Spectral Density Measurement - PSD Frequency Range PSD(d. Bm/Hz) Lower than 1. 6 MHz and higher than 30 MHz -80 1. 6 MHz to 30 MHz -40

Power Spectral Density Mask with amateur radio notches

Maximum voltage broad band signals 134 d. B( V) class 134 devices narrow band signals class 122 devices 122 d. B( V) 120 d. B( V) f/[k. Hz) 3 9 95 148. 5 Regularity limits for maximum transmit-voltages (CENELC) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

voltage Peak 89 d. B( V) 89 Db( Quasi-peak 60 d. B( V) 56 d. B( V) 50 d. B( V) 46 d. B( V) Average f/[MHz] 0, 003 0, 009 0, 15 0, 5 5 30 Conduction-bound regularity limits for radio-disturbance levels. (CENELEC, IEC-CISPER 22) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

field strength 80 d. B( V) 40 d. B( V) 27 d. B( V) f/[Hz] 9 k 1 M 30 M 1 G 3 G Maximum field strength in a distance of 3 m (Reg. TP) Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Frequency management Access 1, 6 MHz Inhouse 10 MHz 30 MHz f Exclusive frequency range for access PLC systems: 1, 6 MHz≤faccess<10 MHz Exclusive frequency range for access PLC systems: 10 MHz<finhouse<30 MHz Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

Summary PLC Channel Characteristics -Time, Interference, Frequency, Impedance, Load, etc. Need many Kinds of Test -Multi Network -Power Line Surge(impluse) -Error bit rate Create Specification - Working Together with Leaders Forum(USA, Europe) - Home Network Spec. - Products(Modem, Chipset) Spec. etc. Regulatory Considerations - Measurement Procedure Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI

감사합니다. Homepage : Http: //potel. keri. re. kr/plc/ E-mail : yhkim@keri. re. kr KERI