application of radio frequency identification (rfid) technology...

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Application of Radio Frequency Identification

(RFID) Technology in Maintenance of

Public Rental EstatesPresented by : Ir. K S Yau

February 2012

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1. RFID System Overview

2. RFID Application in HA Maintenance

3. The HA Pilot Project

4. Enhanced features

5. Extension of RFID application to other BS trades

6. Integration with ERP

7. Conclusion

CONTENT

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What is RFID ?

RFID - Radio Frequency Identification

Technology that makes use of radio frequency transmission (3K to 3000GHz) to identify objects automatically

Radio frequency may further be divided into four major frequency ranges for different applications, namely low frequency (LF), high frequency (HF), ultra-high frequency (UHF) and microwave

Wide application to different areas including access & security control, item management, work process tracking, auto toll etc.

860MHz to 960MHz of UHF range is adopted in RFID application in HA maintenance

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Toll Pass

Octopus & Access Cards

RFID tag

Retail Shop

Library Book Store


Example of RFID Applications

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Why RFID but not their counterparts ?Compared with their counterpart like barcode, RFID has the following advantages :

Long sensing distance, eye sight not required

High detection speed

Read & write operation available

Higher reliability

Durable

Suitable in different environments

Higher data storing capacity

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Tag Reader Server Computer

Operation of RFID systemTags to store the object identity,

Reader to read the tag information,

Application software for implementation


Transmit Radio

Frequency

Receive Radio

Frequency

Retrieve Data &

Process Activities

Store Data

Data Analysis

Report Identity

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Facilitate equipment data management

Enhance Efficiency

Enhance Green operation

Enhance data accuracy

Objectives of RFID Application


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On-line input / checking of equipment inventory

Capture of maintenance history instantly

Real time breakdown analysis

On-line and paperless approval of maintenance schedule

Generate accurate to do list

Monitor contractors attendance

Eliminate duplicated effort (site input system input)

Benefits of RFID Application in HA maintenance Activities


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Record maintenance works

Identify equipment & carry out works

Process in Maintenance Activities


Attend M&I works

Sync equipment activities andgenerate “To DoList” via cradle / 3G service

Sync updatedactivities recordvia cradle / 3Gservice

Data analysisMaintenanceSchedulepreparation

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RFID Application forAir Conditioning (A/C) System

1) Split type A/C Unit2) Window type room cooler3) Central A/C Installation

A/C Equipment

Launched in March 2010

No. of RFID tags installed : 5,900

No. of PDAs purchased : 49


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Tag4all

Chilled Water Pump

Corona

Window Type Room Cooler

Type of RFID Tag

PDA


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Choice of Tag

Passive & Active Tag

Sensing Distance

Plastic Surface or Metal Surface

Tag size

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Location Data

Technical Data (Expandable)

e.g. Chilled Water Pump

Estate Code (xxxxx)

Block Code for tag(xxx)

Service Type (xxxx)

Equipment Code (xxxx)

Number (xxx)

ANHQ 000 AC CWP 001

Equipment Regional Senior

Officer in Charge

Estate Name Location

Chilled water pump SPSM/SS BSE/HQ HAHQ 11/F, Block 1

PumpBrand

PumpModel

Motor maker

(m)

Head Flow Power Speed Installation Date

Previous Overhaul

Date

Equipment ID

(m) (L/s) (KW) (rpm)

PACO 29-40156-140071

ABB STROM-

BERG

37 49 30 1470 1/9/1990 12/6/2008 CWP#1

Tag No.

3. The HA Pilot Project - Equipment Register Sample

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AHU

Split Type A/C

Unit

Identify Equipment on site


Synchronize Data before site work (by cradle or 3G)

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2. To do list1. Scan Equipment


To-Do-List

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1. Select WorksMode

The Work Process


3. Select byComponent

2. Enter WorksDetail

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5. Report Completion

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4. Enter Symptom & Action

調校風扇

聲音異常

聲音異常

調校風扇

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RFID Server

Maintenance

HD Staff

Contractor

Inspection

Or

HD Inspector

Contractor

And

Site works follow up actions


Follow up action

required

(By Cradle)

(By 3G service)

3Gnetwork

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Analysis for Maintenance Works


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A/C Breakdown Record by Component

2022

14

61

13 13

2 2

8

4 41 1 1 1

15

1

10

412 11 2 2

6

1 1

38

25

15

5

81

31

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0

10

20

30

40

50

60

70

80

Air handling unit Chilled water

pump

Chiller Package A/C unit Primary air

handling unit

Split type A/C

unit

Window type

room cooler

A/C Component

Nos.

of

RF

ID B

reakdow

n R

ecord

A ll Parts

Compressor /

Condenser / cooling

CoilBlower fan wheel /

Evaporator Fan

Filter / Others

Motor / Water

pump

Remote control /

Sensor / control

Panel / thermostatIndoor Unit

Drain pipe / Water

Drain Tray

Total

Analysis for Maintenance Works


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Problems encountered in pilot project is :-

1) Data transfer speed during upload and download is relatively slow;

2) Comparatively small screen size and large overall size of PDA;

Overall performance is positive and encouraging - Work efficiency and accuracy enhanced.

Possible exploration

1) Enhance features - Capture contractor’s performance assessment score

2) Extension to other BS trades with improvements in the problems encountered in the pilot

Review of the Pilot Project


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Previous Procedure1. Fill in assessment form on site2. Input assessment form details to PC in office

Using of PDAs via the RFID SystemScores are assessed on site directlyInput performance scores using the PDAsDuplication of input work eliminatedAccuracy and efficiency enhanced

Enhance the software and the use of PDAto capture the contractor’s performance assessment score

4. Enhanced Features

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4. Enhanced Features

Work Flow Simplified Flowchart 1

RFID

PDA

Step 1Input and upload contractor performance assessment results

Step 2Edit / Countersign contractor performance assessment result

Countersigning Officer

Step 3Reminder e-mail alert

Step 4Contractor performance assessment result upload

MASSIS (System for assessing contractor’s performance)

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1) Electrical2) Fire Services3) Water Pump4) Lift & Escalator5) Security

BS Systems


Additional no. of RFID tags to be installed : 35,000

Additional no. of PDAs required : 100

Electrical Switchboard

Electrical Generator Set

Electrical - CABD Headend

FS Alarm Panel

FS & WP - Water Pump

FS & WP - Control Panel

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Security Door

Security Console PanelLift Machine

Escalator ARCS – Compactor

ARCS Blower


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Enterprise Resource Package (ERP) -an master application system commonly used by many large corporations for the finance, procurement and estate maintenance operations

Integration of the RFID system for HA application with the ERP to facilitate and further enhance the HA estate maintenance operations


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Equipment inventory added and updated

Equipment Registry

Contractor carries out maintenance report in PDA

Contractor reports works completion Process Payment

ERP transforms maintenance schedule into works orders

Routine maintenance schedule

Maintenance History & Breakdown Record

Contractor

Contractor

HD’s staff

RFID ERPRoutine Maintenance Stream


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With the integration of ERP system andRFID integration, it is expected that :-

1)Monthly routine maintenance works ordering can be automatically set up in the system

2)Contract management, payment process, etc. can be proceeded more effectively

Design for integration is underway and the integration is scheduled to rollout in 2012.


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1. RFID Application facilitates accurate, efficient and green operation in data management.

2 By the RFID application for keeping good inventory record and maintenance history of equipment etc, our services to the tenants can be further enhanced.

7. Conclusion

application of radio frequency identification (rfid) technology...

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