rfid technology in civil engineeringintroduction • the rfid technology – electronic article...

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


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


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.


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


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.


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


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


(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

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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


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


Digital Camera

PC

Reader/Writer

RFID Tag

Structure


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.


The attribute information is automatically translated into XML.


(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.


b) Can retrieve 3D product model data and 2D drawing (SXF) by referencing the ID number of the RFID tag.

クリック


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.


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


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


ＩＣタグ

施工


4.3. Life-cycle management of temporary materials (scaffoldings)


ＩＣタグ


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


ICタグ

気温センサ123

起点まで10Km


ICタグ

気温センサ123

起点まで10Km


ICタグ

気温センサ123

起点まで10Km


ICタグ

気温センサ123

起点まで10Km


気象観測情報DB


5. UHF Band RFID


6. Ad-hoc Sensor Network


7. Conclusion


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.)


Thank you.

Email: [email protected]: http://yb3.ce.muroran-it.ac.jp/

rfid technology in civil engineeringintroduction • the rfid technology – electronic article...

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