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Nobuyoshi Yabuki (c) 2005 1
RFID Technology in Civil Engineering
Nobuyoshi Yabuki, Ph.D., P.E.Associate ProfessorDept of Civil Eng & Arch
Muroran Inst of Tech, Hokkaido, Japan
January 28, 2006, at Akasaka Prince Hotel
Asia Construction IT Round Table Meeting
Nobuyoshi Yabuki (c) 2005 2
OUTLINE
1. Introduction2. RFID Technology3. Examples of RFID Utilization in Civil
Engineering4. Four Selected Ideas for Future Utilization of
RFID Tags5. UHF Band RFID6. Ad-hoc Sensor Network7. Conclusion
Nobuyoshi Yabuki (c) 2005 3
1. Introduction
• The RFID technology – electronic article surveillance, – electronic toll collection, – factory automation, etc.
• It is increasingly giving much impact on – supply chain management, – logistics, etc.
• In civil engineering, RFID was used – for managing individual construction workers at sites and – for obtaining information on underground structures, – but did not prevail several years ago.
• However, RFID technology can be and should be more utilized in civil engineering.
Nobuyoshi Yabuki (c) 2005 4
2. RFID TechnologyRFID Tag
IC with a memory + Antenna
Reader/Writer
Antenna + Controller Computer
Non contact and wireless communicating using electric waves or electromagnetic waves
Nobuyoshi Yabuki (c) 2005 5
3. Examples of RFID Utilization in Civil Engineering
• In construction field, RFID technology was used for– stakes for displaying buried objects such as pipes and cables– supervising construction workers at tunnel sites in 1990’s.
• However, due to the high cost, the RFID was not utilized as expected then.
• As AutoID Center was founded at Massachusetts Institute of Technology in 1999, RFID technology started to gain interests among industry people.
• Since 2003, much more attention has been paid to RFID and a number of trials have been made in construction related fields.
Nobuyoshi Yabuki (c) 2005 6
Okinawa
Haneji Dam in Okinawa, Japan
•Type: Rockfill dam
•Height: 66.5m
•Crest Length: 198.0m
68 RFID tags were installed for dam inspection.
•Gallery, spillway, intake, bridge, water level, telemeter,
•Reservoir, electric facilities,
•Dam, alarm,
3.1. Utilization of RFID Tags to Dam Inspection
Nobuyoshi Yabuki (c) 2005 7
33500
計測室漏 水
2600030002
000
3000 2000
計測室
漏 水
21400
32000
102962000
2853
8712
4.000
2000
30.00030.000
50.000
3505337700
7527
800020295
20625
31005000
74.000ダム天端
接続箱
排水ポンプ制御盤
排水ポンプ操作盤
別図参照
1.監査廊入口
6.排水ポンプ制御盤
5.目地間隔計測部
2.左岸側浸透圧計2.右岸浸透圧計
3.漏水位計×4箇所
4.水質計測×4箇所
1.監査廊入口
Nobuyoshi Yabuki (c) 2005 8
(a) ○は良好,△はやや劣化,×は問題あり (b) メモ入力 (c) 施工継目の開きのデータと写真
図-7 PDA上の画面表示
EL70.0
EL65.0
EL60.0
EL55.0
EL50.0
EL45.0
EL70.0
EL65.0
EL60.0
EL5
5.0
EL50.0
EL45.0
EL40.0
EL35
.0
EL4
4.0
EL33.0
EL33.0
EL60.0
EL55.0
EL50.0
EL45.0
EL40.0
EL35.0
No.6
No.5
堤頂長198m
FEP50φ2条(照明用)
7.堤体上
8.クラック発生部
9.洪水吐近傍
11.天端橋
18.ダム測定箇所水質
21.湖面巡視
×3箇所
10.建屋内
22.測量箇所
12.維持放流設備室
13.非常放流設備室
14.放流量観測堰
29.上段トンネル入口
30.ダム地点水位計
31.ダム地点雨量計
32.ダム地点警報設備36.田井等雨量局
38.水力コンプレッサー諸元
37.ダム諸元
Nobuyoshi Yabuki (c) 2005 9
3.2. RFID Tags to Link Members of Civil Infrastructures and Product Model Data, Photo, and Drawings
Real members of civil infrastructures
RFID Tag
Computer
Product Model Data
Photo
Drawing
Nobuyoshi Yabuki (c) 2005 10
Digital Camera
PC
Reader/Writer
RFID Tag
Structure
Nobuyoshi Yabuki (c) 2005 11
a) Install an RFID tag and input an ID number(1) Taking a photo first time
Nobuyoshi Yabuki (c) 2005 12写真の属性情報入力システム
b) Take a picture. And input attribute information that conformsthe standard defined by MLIT and ID number into the PC.
Nobuyoshi Yabuki (c) 2005 13
The attribute information is automatically translated into XML.
Nobuyoshi Yabuki (c) 2005 14
(2) Latera) Retrieve the ID number from the RFID tag.
Attribute of Photo
List of photos
過去の点検時に撮影された画像及び属性情報を表示する.
Nobuyoshi Yabuki (c) 2005 15
b) Can retrieve 3D product model data and 2D drawing (SXF) by referencing the ID number of the RFID tag.
クリック
Nobuyoshi Yabuki (c) 2005 16
4. Four Selected Ideas for Future Utilization of RFID Tags
1. Bridge maintenance support2. Life-cycle management of construction
materials (reinforcing bars)3. Life-cycle management of temporary
materials (scaffolding)4. Management of facilities and land by
utilization of information stakes.
Nobuyoshi Yabuki (c) 2005 17
4.1. Bridge Maintenance Support
ピッ!A1G1
G2
G3
前回点検結果確認画面
前々回→前回 a b
【今回点検結果】
c【損傷進行度算定】
○△□
付帯設備(標識柱、照明柱)には、諸元情報を登録したICタグを設置
床版や支承等の点検箇所に橋梁の点検箇所を識別するIDを登録したICタグを設置
橋梁入り口
橋梁の諸元及び各点検箇所に設置したICタグの設置場所を示した情報を登録したICタグ
①ひびわれ②剥離・鉄筋露出③漏水・遊離石灰④抜け落ち⑤うき
点検結果入力画面
損傷種類
評価区分
コメント
◆ICタグにより、部材の場所を特定
A-1 A-2 ...①
②
③
①
②
③
Aライン
Bライン
▼
②剥離・鉄筋露出
▼
a 損傷なしbc 乖離が生じている
②剥離・鉄筋露出
◆プルダウンメニューより選択
センサ
センサー情報の取得●▲■
□△○×
■▲■
○×□△
▲■●
○△×□
●▲■
・・・・・・・・
センサー情報の分析
Nobuyoshi Yabuki (c) 2005 18
4.2. Life-cycle management of construction materials (reinforcing bars)
• Attaching RFID tags to reinforcing bars• Linking reinforcing bars to product model
data.
プロダクトモデル
ICタグ
施工
プロダクトモデル
ICタグ
施工
Nobuyoshi Yabuki (c) 2005 19
4.3. Life-cycle management of temporary materials (scaffoldings)
プロダクトモデル
ICタグ
Nobuyoshi Yabuki (c) 2005 20
4.4. Management of facilities and land by utilization of information stakes
情報杭による調査・測量業務
起点まで10Km
123
現場
道路台帳DB
位置情報又はIDから地下埋設物、地質情報等を入手する。
123
ICタグ
道路キロポストにICタグを設置する。
情報杭による調査・測量業務
起点まで10Km
123
現場
道路台帳DB
位置情報又はIDから地下埋設物、地質情報等を入手する。
123
ICタグ
道路キロポストにICタグを設置する。
光ファイバー
アクティブの杭とセンサー付きの情報杭の連携による広域的な観測網
各キロポストで観測された、気象情報をネットワーク機能を利用し、DB送付・管理する。
現場
ICタグ
気温センサ123
起点まで10Km
ネットワーク機能
ICタグ
気温センサ123
起点まで10Km
ネットワーク機能
ICタグ
気温センサ123
起点まで10Km
ネットワーク機能
ICタグ
気温センサ123
起点まで10Km
ネットワーク機能
ICタグ
気温センサ123
起点まで10Km
ネットワーク機能
ICタグ
気温センサ123
起点まで10Km
ネットワーク機能
気象観測情報DB
Nobuyoshi Yabuki (c) 2005 21
5. UHF Band RFID
Nobuyoshi Yabuki (c) 2005 22
6. Ad-hoc Sensor Network
Nobuyoshi Yabuki (c) 2005 23
7. Conclusion
Nobuyoshi Yabuki (c) 2005 24
Integration of Cyber Infrastructures and Real Infrastructures
Cyber Infrastructures
CAD/CG FEMOther Analysis
Software PackagesGIS
DatabasesMiddleware
Design CheckingSoftware
ProjectManagementCBR System
Data Mining Multi-Agents
LinkingSensor Data
Sensor Networks RFID
Information(Order, Advices, and Support)
Various Appliances,Equipment, and Machines
Roads, Bridges, Tunnels, Railways, Stations,Rivers, Dams, Hydraulic Gates, Causways, Ports,
Sewages, Agricultural Infrastructures,Power Stations, Transmission Lines, Gas Facilities,
Communication Facilities, etc.
Real Infrastructures
People
Data Models(Product Models,
Sensor DataModels, etc.)
Nobuyoshi Yabuki (c) 2005 25
Thank you.
Email: yabuki@news3.ce.muroran-it.ac.jpURL: http://yb3.ce.muroran-it.ac.jp/
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