Transcript overview of the ultrasonic smart gas meter for residential use

The Development of Innovative
Advanced Metering Infrastructure
– Ubiquitous Metering System –
24th November, 2010
Jun Fujiwara , Tokyo Gas Co., Ltd.
Masahiro Yasui , Osaka Gas Co., Ltd.
Hiroshi Ishida , Toho Gas Co., Ltd.
1
Today’s Topics

History of Japanese Domestic Gas Meters



Situation of Existing AMR (Automatic Meter reading) in Japan



Stages of Improvement
Innovation of Measurement technology
System Outline
Surrounding Issues
Next Generation Gas Smart Metering System


Over View of Ubiquitous Metering System
Features of Technology
2
History of Domestic Gas Meter in Japan
Year 1961
Year 1965
Year 1976
?
Measurement function
Safety functions
Year 1983~
Communication functions
Year 1987~
3
Hardware Evolution
Ultrasonic
Gas Meter
Diaphragm
Gas Meter
Featuring
 Electronized measuring parts
 Modularized components
 Upgraded communication capability
 Maintaining energy saving circuit
 High durability and small-sized
4
Measurement Principle
Ultrasonic sensor
（Upstream）
L
T1 
C  U cos
Flow Speed
U
T2
T1
θ
Ultrasonic sensor
（Downstream)
L
T2 
C  U cos 
L
U 
2 cos 
1 
1
  
 T1 T 2 
Sound speed is canceled
5
Current AMR System in Japan
Modem with
Wireless Transceiver
Center
Telephone Line

Surrounding Issues



Telephone
429MHz
Diversity of phone line
infrastructure
Driven by market penetration of
cell phone
Imminent requirement

“Anywhere” & “Anytime”
communication tool
Micom Meter
with
Wireless Transceiver
6
General Configuration of the Ubiquitous Metering System
Innovative AMI composed of the following three:
Ubiquitous Meter (Next-generation ultrasonic gas meters with U-Bus )
WAN device
U-Bus Air (Adhoc Mesh Network)
WAN
多段中継無線
(Wide Area Network)
U-Bus Air
Base Station
WAN Device
U-Bus
(New Communication I/F)
Ubiquitous Meter
(New Ultrasonic Gas
Meter)
(Adhoc Mesh Network)
U-Bus Air Device
Fire Alarm
CO Detector
Gas Leak
Control Box Detector
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Ubiquitous Meter (Next-Generation Ultrasonic Gas Meters)


A2 A1 U1 U2 ＋ －
U-Bus
Current
NCU
WAN
Device
U-Bus Air
Device
Ultrasonic Meters replace
conventional diaphragm
meters (about 1/3 the size).
Extra CPU power enables
advanced communication
interface to be included.
Alarm
U-Bus (Next-generation communication I/F)
→More extensive networking capability is achieved by packet communication and faster transmission
speed, greatly improving the frequency of communication.
→The built-in gateway function expands the variety of service contents and enables downstream
alarm devices, etc. to be controlled.
→Cost-efficiency is maximized by mass production, supported by the sharing of standard
specifications between city gas meters and LPG meters.
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Wide Area Access to Meters and Sensors
< Wide Area Ubiquitous Network (WAUN) proposed by NTT >
Home Security
IP Network
Health Care
Traffic Management
Meter Reading
Home Automation
Vending Machine Maintenance
Environmental Monitoring
 Cost effective network infrastructure for pervasively distributed movable
wireless terminals (sensors and/or actuators)
 Wide-area network with several km radius cell
 Super low energy devices
WAUN will be applied to new type of network and service that goes beyond
conventional mobile phone networks.
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U-Bus Air Devices (Adhoc Mesh Network Devices)
New communication scheme in the 950MHz band characterized by the use of
super-low power consumption and the support of adhoc and multi-hop
communication among gas meters
WAN
device
U-Bus Air devices
HHT
※Using HHT GW instead of WAN Device
Automatic recognition of newly
added terminals
Automatic routing
(1) Simplified installation ⇒ Reduced installation cost
(2) Higher transmission reliability ⇒ Reduced maintenance cost
(3) Applicable to diverse sites (including auto-locked
condominiums)
10
Field Test of U-Bus Air Devices
U-Bus Air devices (trial model) are installed in meter compartments of an apartment block for testing
communication reliability. The test is now being implemented (to be completed by the end of this fiscal
year).
U-Bus Air device
(Trial model)
Meter compartment
Test site building (10 stories, each story
with 10 households)
11
U-Bus Air Devices Field Test Result
(Data Collected up to Dec/1/2009)
10
F
9F
8F
7F
6F
5F
4F
3F
2F
1hop
10
9
7
2hops
6
3hops
23
18
15
14
11
4hops
28
26
25
24
5
Plot
35
33
32
31
30
Clear
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
Room 6
Room 5
Room 4
1F
Room 10 Room 9
8
Room 8
Room 7
Room 3
Room 2
Room 1
12
Progress on Common Use of Specifications and
International Standards
FY 2008
IEEE
802.15.4g
FY 2009
FY 2010
FY 2011
Standardization of Smart Utility Networks (SUN)
Proposal on PHY&MAC layers for U-Bus Air
Ubiquitous
Metering Forum
Secretariat
NPO Japan
Utility
Telemetering
Association
Japan Gas
Association
The High
Pressure Gas
Safety Institute
of Japan
Preparing proposal on the
integrated communication
protocol
Transfer of tasks
(model number control, etc.)
Submission of Proposal
Preparation of proposal on the communication
protocol for city gas and LPG metering
Participation of city gas utilities,
water service agencies and other
related organizations
Communication
protocol for city gas
metering
Communication
protocol for LPG
metering
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Development Schedule
２００８
Ｑ１
FY 2008
２００８
２００８
Ｑ２
Ｑ３
２００８
Ｑ４
２００９
Ｑ１
FY 2009
２００９
２００９
Ｑ２
Ｑ３
２００９
Ｑ４
２０１０
Ｑ１
FY 2010
２０１０
２０１０
Ｑ２
Ｑ３
２０１０
Ｑ４
Wide Area Ubiquitous Network
Tests in the special district
U-Bus Air Device
Experimental
production
Sample for FT
production
Field test
Sample for PT
production
Ubiquitous Meter
Field test
Sample for PT production
Pilot Test
14
Thank you very much for your attention
Communication of Next Generation Enables
Inspiring & Creative Life Styles
Attentive Services
Energy
Management
Security & Safety
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