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Next generation gas smart metering system:Next generation gas smart metering system:Current Status of Current Status of Smart MeteringSmart Metering Initiatives in the City Gas Initiatives in the City Gas IndustryIndustry in Japanin Japan

SachikoSachiko KonoKono Tokyo Gas Co., LtdTokyo Gas Co., LtdMasahiro Masahiro YasuiYasui Osaka Osaka Gas Co., LtdGas Co., LtdKazuhiro Kazuhiro NichiguchiNichiguchi Toho Toho Gas Co., LtdGas Co., Ltd

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Contents

History of Innovations on Gas MetersHistory of Innovations on Gas Meters in JAPANin JAPAN

Situation of the Existing Smart Meter SystemSituation of the Existing Smart Meter System

Development of the Next Generation Gas Smart Development of the Next Generation Gas Smart Meter SystemMeter System

Discussion on the Smart Metering in JapanDiscussion on the Smart Metering in Japan

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Measurement function

Safety functionsYear 1983~

Communication functionsYear 1987~

Year 1961 Year 1965 Year 1976

History of Domestic Gas Meters in Japan

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DiaphragmGas Meter

UltrasonicGas Meter

Featuring Electronic measuring parts Modularized components Upgraded communication capabilities Maintaining energy saving circuits High durability and small-sized

Hardware Evolution Ultrasonic Gas Meter

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Automatic Warning Service

Providing services by connecting meters and Station 24. (Monthly charge493)> Remote shut-off service> Automatic Warning Service> (Automatic Meter Reading)

Since July 1989

Customer calls Station 24 to order to turn off the gas

Station 24 turns off the gas meter

Gas meter detects abnormal conditions and

sends the information

Station 24 calls the customer

Confidential Monitoring Center

open 24 hours

Station 24 Services

Commercial & Industrial Energy Monitoring Service

Telephone line

mobile phone

Internet

Apartment house Remote Monitoring System

Domestic customer Automatic Warning Service Remote shut-off Service Safety and security service Monitoring Service for aged parents

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Micom Meterwith

Wireless Transceiver

Telephone

Modem withWireless Transceiver

Telephone Line

Surrounding Issues> Diversity of phone line infrastructure> Driven by market penetration of cell

phoneImminent requirement> Anywhere & Anytime

communication tool

ST24 Center429MHz

Existing AMR System in Japan

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The Next generation GAS Smart Metering System

Innovative AMI composed of the following three:WAN deviceU-Bus Air (Adhoc Mesh Network)Smart Meter (Next-generation ultrasonic gas meters with U-Bus )

Fire Alarm

Gas Leak DetectorControl Box

CO Detector

U-Bus(New Communication IF)

WAN DeviceU-Bus Air Device

Smart Meter(New Ultrasonic Gas Meter)

U-Bus Air (Adhoc Mesh Network)

WAN(Wide Area Network)

Center

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A2A2 A1A1 U1U1 U2U2

CurrentCurrent NCUNCU AlarmAlarm

A2A2 A1A1 U1U1 U2U2

UU--BusBus

NCUNCU WAN WAN DeviceDevice

UU--Bus AirBus AirDeviceDevice

Next-Generation Ultrasonic Gas Meters

U-Bus : New communication IF

High Speed Data rate

Cascading and Plug-in Playing

Smart Packet Data Transmission

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(1) Simplified installation=> Reduced installation cost

(2) Higher transmission reliability=> Reduced maintenance cost

(3) Applicable to diverse sites=>Even in the pipe shaft of condominiums

New communication scheme in the 920MHz band characterized by the useof super-low power consumption and the support of adhoc and multi-hopcommunication among gas meters.

Automatic recognition of newly added or removed terminals

Automatic routing

WAN device

U-Bus Air Devices(Adhoc Mesh Network Devices)

U-Bus Air (Adhoc Mesh Network)

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U-Bus Air devices (trial model) are installed in meter compartments of an apartment block for testing communication reliability.

Apartment used for test(10 households 10 floors)

Multi-hopping transceiver

Internal of pipe-shaft

Field Test of U-Bus Air Devices

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Whole U-Bus Air transceivers within the network could be connected each other with four-time hopping in case that NCU was installed on the top floor.

one time hopping

10 9 8 7 6 tow-time hopping

three-time hopping

23 18 15 14 11 four-time hopping

28 26 25 24 5

35 33 32 31 30

41 39 38 37 36

46 45 44 43 42

52 50 49 48 47

57 56 55 54 53

69 67 64 59 58

74 72 70

R10 R9 R8 R7 R6 R5 R4 R3 R2 R1

10F

9F

8F

7F

2F

1F

6F

5F

4F

3F

Note: F: FloorR: Room

U-Bus Air Devices Field Test Result

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The specification of the Ultrasonic meter has been already standardized in the city gas industry, and sharing the main parts for the LPG meters. The specifications of U-BUS and U-BUS Air have been already standardized by NPO Japan Utility Telemetering Association (JUTA) at the end of FY 2010. PHY and MAC Layers for U-Bus Air were proposed to IEEE 802.15.4 g/e, and they have been adopted as standards at the end of FY 2011.

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Common Use of Specifications & International Standardization

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Discussion on the Smart Metering in Japan

To install smart meters to virtually all customers locations by the early 2020s, after thoroughly evaluating cost-effectiveness, etc.

(by the Basic Energy Plan)

New Services

Energy Saving

The electricity industry was proposed Smart Meter installation goes to 80% of total electricity demand in 5 years. The gas industry must take action!!

The Great East Japan Earthquake

Low Carbon Society

New industries

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Discussion on the Smart Metering in JapanRequirements for Smart Meters> Functional requirements:

Tele-metering and remote control of switches/valves.> Information to be handled :

Consumption, time data, and reverse flow measurements. > Receivers of information:

Bi-directional information supply for the benefit of both customers and electric/gas utilities.

> Timing of information supply:Data on any given day shall be made available by the next day at latest.

Standardized for IF with HEMS> Data format:

Echonet Lite (Recommended)> Media:

920MHz ,Wi-Fi, and PLCHEMS

Consumer

Smart Meter

Utilities

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Brief Summary

History of Innovations on Gas MetersHistory of Innovations on Gas Meters in JAPANin JAPAN

Situation of the Existing Smart Meter SystemSituation of the Existing Smart Meter System

Development of the Next Generation Gas Smart Development of the Next Generation Gas Smart Meter SystemMeter System

Discussion on the Smart Metering in JapanDiscussion on the Smart Metering in Japan

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Thank you very much for your attentionThank you very much for your attention

Attentive Services Energy ManagementSecurity &

Safety

Communication of Next Generation Enables Inspiring & Creative Life Styles

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