Development of an automated guided vehicle.

UNIVERSITI TEKNIKAL MALAYSIA MELAKA

DEVELOPMENT OF AN AUTOMATED GUIDED VEHICLE

This report submitted in accordance with requirement of the Universiti Teknikal
Malaysia Melaka (UTeM) for the Bachelor Degree of Manufacturing Engineering
(Robotics and Automation)(Hons.)

by

MUHAMMAD ZULHELMI BIN AHMAD
B051010052
880206025069

FACULTY OF MANUFACTURING ENGINEERING
2014

full report
by Zulhelmi Ahmad

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ABSTRAK

Tujuan projek ini adalah untuk rnengkaji dan rnernbangunkan sebuah kenderaan dipandu

secara autornatik (AGV) yang boleh rnengangkat dan rnenarik troli seberat 300kg secara
autornatik rnenggunakan navigasi garisan. Turnpuan kawasan kerja AGV adalah di
kawasan gudang . Oleh itu projek ini hanya te11umpu kepada pembangunan dan prestasi
AGV. Di dalam projek ini, reka bentuk AGV menggunakan SolidWork 2012. Empat
roda mecanum dengan I 20W arus terus (DC)

berus motor telah digunakan untuk

menggerakan AGV dan bagi sistem navigasi digunakan penderia penentukuran rnaju.
Penderia ini diletakan di hadapan

AGV. Untuk penilaian prestasi AGV , data telah

dikurnpulkan dengan menandakan kawasan yang AGV telah lalui untuk rnencapai
matlarnat sasaran dua titik di kedudukan (titik bermula) ke titik yang lain (titik berakhir).
Data yang telah dikurnpulkan dan derekodkan setiap 40cm untuk mendapatkan
pergerakan AGV sebenar. Untuk memastikan kejayaan penilaian navigasi, proses
pengukuran data akan dijalankan sebanyak 5 kali. Hasiln simulasi ditunjukan dalam
gambar,jadual dan garf. Pada rnasa yang sarna AGV boleh rnengangkat dan menunda
troli 300kg.


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ABSTRACT

fJ

The purpose of this project is to study and develop an Automated Guided Vehicle
(AGV) that can lift and tow a trolley 300 of kg weight automatically using the line
navigation. The focus waking area of AGV is at the warehouse. Therefore,this project
focus on the development and performance of AGV . In this project, the SolidWork was
used in designing the AGV. Four mecanum wheels with 120W DC brush motor were
used to move the AGV and an Advance Calibration Sensor was used as the guidance
system. This sensor was placed at the front of AGV. In archive the AGV performance,
data was collected by marking the area that AGV in achieving to reach a target goal of
two position point (start point) to another point (last point). Data was recorded every
40cm to get the actual movement of AGV. In ensuring the success of navigation, the
process of data measurement was conducted 5 times. The results are shown in pictures,

tables and graph. At the same time the AGV can lifting and towing a trolley 300 kg.

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DEDICATION

I dedicate this report to my beloved parents Ahmad bin Hj Bahari and Zaiton bt Awang.
Not forgotten, my supervisor, Dr. Fairul Azni bin Jafar and our mechatronic laboratory
technician , Mr Muhamad Asari bin Abdul Rahim, lecturers Mr Mahasan Mat Ali, and
my friends especially Rozaimi bin Sabri and Mohd Aidil bin Othman for giving the
assistant and supports in completing this project. Not forgotten language advisors
Madam Teh Zanariah binti Mohd Raus and Madam Nadiah binti Zainal Abidin are not
give up for teaching and guiding me about writing project reports ways until
successfully.

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ACKNOWLEDGEMENT

ALI Praise to Allah and prayers and peace be upon Muhammad Rasulullah S.A.W.
Qf all, I would lik

thanks and appreciation

· consistent iguidancc

セN@

Fairul Azni

m
ir ·

lllo

scarification to help and enco uraged to finish this


Final Year Project I. From the bottom of my heart I am so grateful to Dr. Fairul Azni
bin Jafar as my supervisor. Thanks to my family who always support me in term or
money, advice, and others. Special thanks also dedicated to my friends especially
Rozaimi bin Sabri and Mohd Aidil bin Othman for help me a lot during the progression
of project. I am grateful for any kind of help received from others directly or indirectly
during the process of my Final Year Project 2.

TABLE OF CONTENTS

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m
I

Abstrak
.


tract

Dedication
Acknowledgement
Table of Content
j"

List of Tables
List of Figures
List Abbreviations, Symbols and Nomenclatures
C HAPTER 1: INTRODUCTION
I. I

Background

1.2

Problem Statement

1.3


Objectives

1.4

Scope

1.5

Organisation

C HAPTER 2: LITERATttfjE REVIEV\

g_.r

futroduction of the Automated Guided Vehicle (AGV)

5

!2.2


Type of Automated Guided Vehicle (AGV)

7

2.2. I

Driverless Trains

8

2.2.2

Pallet Trucks

9

2.2.3

Unit Load Carriers


2.3

. .V Applications

g,l, I

2.4

Storage l!!lSI Distribution

10
11

II

!2.3.2 Assembly Line Application

12


!2.3.3 Flexible Manufacturing Systems

12

Navigation of the Automated Guided Vehicles (AGV)

13

2.4.1

Line Following

14

2.4.2

Magnetic Guidance

15

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2.4.3

2.5

Wire Guidance

16

2.4.4 Laser Guidance

16

2.4.5

Vision Guidance

17

2.4.6

Localization

18

Summary

19

El

CHAPTER 3: METHODOLOGY

3.1

Introduction

21

3.2

Idea Collections

22

3.2.l

Review of AGV

22

3.2.1. J

23

3.3

3.4

Current AGV

3.2.2 Identify Requirement

24

Conceptual Design

25

3.3.I

Concepts Generations

26

3.3.2

Concepts Selection

27

3.3.3

Concepts Development

28

Development

30

3.4.1

Hardware structure development

31

3.4.1.1 Frame body fabrication

31

3.4.1.2 Motor and Wheels assembly

32

3.4.2 Electrical parts development

3.4.3
3.5

33

3.4.2.1 Electronic circuit design

34

3.4.2.2 Manual Wiring

38

3.4.2.3 Functionality

39

Software Algorithm Design

39

Testing and Analysis

40

3.5.1

Path of AGV

40

3.5.2

Navigation Method

41

3.5.3

Analysis

42

3.6

Materials

43

3.7

Summary

44

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CHAPTER 4: DESIGN AND DEVELOPMENT
Mechanical Structure
4.1.1

4.2

4.3

45

Mechanical Fabrications

47

4.1.1.1 AGY Base Fabrications

47

4.1. 1.2 Bracket DC Motor Fabrication

49

4.1.1.3 Key Hub Mecanum Wheel Fabrication

52

4.1.1.4 40mm bar Bracket Fabrication

56

4.1.1.5 Electrical Base Plate Fabrication

60

Control System

62

4.2. l

Circuit Design

62

4.2.2

Power Supply Circuit

64

Programming

67

CHAPTER 5: RESULTS AND ANALYSIS
5 .1 Experiment Requirement

68

5.2

Experiment I (Straight path without load)

70

5.2.I

70

5.2.2 2nd Run (Straight path without load)

73

3rd Run (Straight path without load)

75

5.2.4 4th Run (Straight path without load)

77

5.2.5

79

5.2.3

5.3

Ist Run (Straight path without load)

5th Run (Straight path without load)

Experiment 2 (U-Shape path without load)

81

5.3.1

82

I st Run (U-Shape path without load)

5.3.2 2nd Run (U-Shape path without load)
5.3.3

87

5.3.4 4th Run (U-Shape path without load)

89

5th Run (U-Shape path without load)

91

5.3.5
5.4

3rd Run (U-Shape)

84

Experiment 3 (Straight path with 300kg load)
5.4.1

1st Run (Straight path with 300kg load)

94
94

5.4.2 2nd Run (Straight path with 300kg load)

96

5.4.3

98

3rd Run (Straight path with 300kg load)

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5.5

5.4.4

4th Run (Straight path with 300kg load)

100

5.4.5

5th Run (Straight path with 300kg load)

102

Discussion

105

5.5.1

Experiment Analysis (straight without load)

105

5.5.2

Experiment Analysis (U-Shape without load)

106

5.5.3

Experiment Analysis (straight with load

107

5.6

Problems and countermeasure

108

5.7

Summary

108

m

CHAPTER 6: CONCLUSION & FUTURE WORK
6.1

Conclusion

109

6.2

Future wor)\ (RecommendationO

110

REFERENCES

111

APPENDICES

114

LIST OFT ABLES

3. 1

Concept evaluation

27

3.2

Bill of material

43

4.1:

Common Metric Tap Drill Sizes.

59

5.1

Data tabulation for Ist experiment I

72

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5.2

Data tabulation for 2nd experiment 1

74

5.3

Data tabulation for 3rd experiment I

76

5.4

Data tabulation for 4th experiment I

78

5.5

Data tabulation for

5.6

The data tabulation for !st experiment 2

83

5.7

The data tabulation for 2nd experiment 2

85

5.8

The data tabulation for 3rd experiment 2

88

5.9

The data tabulation for 4'" experiment 2

90

5.10

The data tabulation for 4th experiment 2

92

5.11

The data tabulation for 1st experiment 3

95

5. 12

The data tabulation for 2nd experiment 3

97

5.13

The data tabulation for 3rd experiment 3

99

5. 14

The data tabulation for 4th experiment 3

101

5.15

The data tabulation for 5th experiment 3

103

s•h experiment 1

80

LIST OF FIGURES

2.1

AGV used in internal logistic

7

2.2

Driverless automated guided trains

8

2.3

AGV pallet trnck

2.4

AGV Uni1 Load Carriers

10

2.5

Example of navigation systems

14

2.6

Line 1racking navigaiion principle on 1he line follower robot

15

3.1

Overall nowchar1 of the project.

21

3.2

Idea colleciion now chart.

22

9

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3.3

AGV al warehouse Johnson Controls.

23

3.4

Trolley wilh 300kg weight

24

3.5

Concepmal Design flow chart.

25

3.6

Concepl genera1ions of the AGV

26

3.7

lsornetric vie\V

.28

3.8

From View

29

3.9

Side View

3.10

Top View

29

3.11

Development of AGV flow chart

30

3.12

Hardware structure flow chan

31

3.13

Aluminium profile and bracke1s

.32

3.14

Brackels anach on aluminium profiles

32

3. 15

120W DC brush mo1or and mecanum wheels

33

3. 16:

Elcc1rical parl developmem process flow chart

33

3.17:

Electronic circuil block diagram of AGV.

34

3. 18:

Motor Driver MD30B.

35

3.19:

SK40C.

35

3.20:

PIC 16F877 A Microcon1roller

36

3.21 :

Advanced auto-calibrating line sensor.

37

3.22:

Electric car jack.

37

3.23:

SLA battery and battery charger

38

3.24:

AMC Foyer (FKP laboratory). FKP Building

40

3.25:

Path of AGV

41

3.26:

Navigation error

42

4. 1:

Design of AGV

46

4.2:

Actual AGV.

46

4.3:

Cutting aluminium profile using handsaw

4.4:

Connection process of aluminium profiles using M6 screw and bracke

t48

4.5:

BaseofAGV.

48

4.6:

Design de motor bracket

49

4.7:

Culling GI plale using Laser Culling Machine

50

4.8:

GI plalc had been cul using Laser Culling Machine

50

4.9:

Bending GI plate process セゥ l

51

4.10:

lns1alla1ion DC molOr to GI pla1e

ョァ@

Manual Banding Machine

47

51

4.11:

Design of key hub of mecanum wheel

.52

4.12:

Cutting mild steel bar using Bandsaw Machine.

53

4.13:

Fabrica1ion key hub using CNC Machine

53

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4.14:

lnstalla1ion of key hub wilh l2mm bearing pillow block to mecanum wheel 10 base AGY.54

4.15:

lnstalla1ions of four key hub with eighl l2mm bearing pillow block for four mecanum wheels to
base AGY.

4.16:

54

lnstallalions four key hub. eighl l2mm bearing pillow block. and four mechanum wheels 10 four
DC motors.

55

4.17:

Conneclion between DC molor and key hub using I 2mm coupler

55

4.18:

Design of bracket.

56

4.19:

12mm cylinder bar housing.

57

4.20

: Face milling.

57

4.21

: Drilling.

58

4.22:

Tapping method.

59

4.23:

lnslallation bracket and l2mm linear motor ball bearing slides to 12mm cylinder bar.

60

4.24:

Design of elec1ronic part plales

61
61

4.25:

Cutting acrylic 3mm using Laser Culling Machine

4.26

shows installation electronic pans to 3mm acrylic plates

62

4.27:

Overall Of Circu it Design

63

4.28:

Overview of PIC wiring installation

63

4.29:

Wiring of eighl baneries schematic diagram

64

4.30:

Wiring 1wo baueries

65

4.31:

24Y value

65

4.32:

2V value

66

4.34:

4.35:

Recharging baneries using adapter

Line Foll owing in Programming Part .

66

67

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5.1:

The actual path

69

5.2:

Graph

69

5.3:

The actual straight path

70

5.4:

The l" experiment result (straight).

71

5.5:

The data of movement AGV error for 1" Run

72

5.6:

The 2nd experiment result (straight).

73

5.7:

The data of movement AGV error for 2"d experiment

74

5.8:

The 3rd experiment resu lt (straight)

.75

5.9:

The data of movement AGV error fol' 3rd experiment.

76

5.10:

The 4th experiment result (Straight)

.77

5.11:

The data of movement AGVerror for 4'" experiment 1

78

5.12:

The 5th experiment result (straight).

79

5.13:

The data of movement AGY error for 5th experiment l.

80

5.14:

The actua l U-Shape pathway

81

5.15:

The I st experiment result (U-Shape).

82

5.16:

TI1e data of movemenc AGY e1Tor for I st experimenc 2.

84

5.17:

The 2nd experiment result (U-Shape).

84

5.18:

The data of movement AGY error for 2"" experiment 2

86

5.19:

TI1e 3rd experiment resull (U-Shapc)

.87

5.20:

The data of movement AGY error for 3'J expe1iment 2

89

5.21:

The 4th experiment result (U-Shape).

89

5.22:

The daca of movement AGY error for 4th experimenc 2.

91

5.23:

The 5th experiment result (U-Shape)

91

5.24:

The data of movement AGY error for 5th experiment 2.

93

5.25:

The actual straight path

94

5.26:

The lsc experiment result (straight with load).

94

5.27:

The I st experiment result (straight with load)

96

5.28:

The 2"" experiment result (straight with load).

96

5.29:

The 2nd experiment result (straight with load).

98

5.30:

The 3"' experiment result (straight with load)

98

5.31:

The 3rd experiment result (straight with load)

100

5.32:

The 4"' experiment result (scraight wich load)

100

5.33:

The 4"' experiment result (straight with load)

102

5.34:

The S'" experiment result (straight with load)

102

5.35:

The 5th experiment result (straight with load)

104

5.36:

The result of all AGV movement (Straight without load).

105

5.37:

The result of all AGV movement (U-Shape without load).

106

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5.38:

The result of all AGV movement (Straight with load)

107

LIST OF ABBREVIATIONS

AGV

Automatic Guided Vehicle

DC

Direct Current

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PIC

Programmable Integrated Controller

SLA

Seal Lead Acid battery

RPM

Rotation per Minutes

LED

Light-emitting Diode

GI

Galvanized Iron

k
0

kilogram

m

mete r

cm

centimeter

mm

milimeter

CHAPTER 1
INTRODUCTION

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New inventions, manufactures and designs come from multiple ideas that are generated
into large concept and futuristic thinking. The process development of the product
requires a lot of time, cost and effort. Therefore, it requires a high attention to make it
s uccess. The development and design of Automlf' Guided Vehicle (AGV) is an
invention to improve quality and performance. The goal of this projec is to develop an
AGV Unit Load Vehicles and keep the AGV on track or predefined path. Easy in
modification of g uidance system is the major advantage of changing the guide path at a
lower cost compared to chains, conveyors and others. Usually, AGV navigation is used
by wired, guide tape, laser target navigation and others.

1.1

Background

m
An automated guided vehicle system (AGVS) is a material handling system that use
independently operated, self - propelled vehicles guided along defined pathways. The
vehicles are powered by on - board batteries that allow many hours of operation (8- 16

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m

hour is typical) before needing to be recharged. A distinguishing feature of AGV,

arious load point to vario · upload points. AGV is lherefore suitable for automating
!lliltcrial handling in bate

oduction and mixed mode

oductio .

In early 1950's AGV has been introduced, the numbers use of AGV has
increased along with the application areas and types (Hamid et. al. , 2009). Usually in a
storage or warehouse, the operators supply all part required to maintain productivity in
the production lines to assembly. The use *

GV in production lines will increase the

speed of the production lines. The AGV is now found in all t pes of industries, with the
o_fily restrictions on their use maifily resulting from the dimensions of the goods to be
transported considerations (Ali, 2003). )'vfany applications of AGV are technically
possible, but the purchase and implementation of such

stems are usually based on

economic considerations (Chew et. al., 2009).

f.I

Nowadays, AGV is very important in production and is widely used in
automated Material Handlin0 System (MHS), Flexible )'vfanufacturiliJystem (FMS)
and even in container terminals to transport containers. The vehicles can automatically
perform loading, routing selection, and unloading process. The system is highly complex
and expensive. To realize the full potential, it is essential to design, plan, schedule, and
control the system efficiently.
Currently, many companies are still employing human to do the trolley towing
task. This is not as effective as the usage of AGV. Operators are prone to error and
problem will likely to occur. Hence, it is believed that the application of AGV in the
manufacturing industry would help to solve this problem.

1.2

Problem Statement

Currently, trolleys in production line especially in storage area or warehouse are pushed
by the operator on irregular intervals. As impact of those problems, it will slow down the
production line process. Therefore, a possible solution for this problem is to replace the

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operators with AGV. This is will eventually lead to increase in the production process,
profit, reduce time and save cost. Through out the AGV has a progress on many levels
and stages. However, it is very expensive to develop a new AGV product. The
development of AGV product requires a lot of extra cost. Hence, by fabricating the
AGV it will take a lot of time and cost to fabricate the AGV product.

m
U

0 ·ecf es

[be objectives of this project.arei
[2 develop a new AGVS Unit Load Vehicles.

To analyse the performance of developed AGV

1.4

Scope

The main target of this project is to develop a prototype new AGVS Unit Load Vehicle
that able to lift and tow a trolley with maximum load of 300 kg. The navigation of AGV
only focusing line following methods such as forward and reverse movement, left and
right turn. However some of criteria such as speed, material selection, and localization
are not considered.

1.5

Organisation

Chapter 1 in this project consists of background, problem statement, objectives, scope
and organisation that are relate with AGV. Meanwhile Chapter 2 consists of literature
review study which describes the related works of AGV. After that Chapter 3 describes
the methodology used in this study including the overall flow chart and also a Gantt
chart to highlight of the project. The progress will provide explanation regarding process

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of completing this project. Besides that, Chapter 4m sents the developing of AGV from
beginning until finish. Chapter 5 also presents the results and analysis of th navigation s
performance. Lastly eィZゥー

エ・ セ@ 6 that concludes th project by presenting the final outcome

and achievement of this project and states future work that could further improve the
outcome of this repo rt.

CHAPTER 2
LITERATURE REVIEW

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© Universiti Teknikal Malaysia Melaka

This chapter focuses on the features of Automated Guided Vehicle (AGV). Section 2. 1
of this repo1t will explain the introduction of AGV, section 2.2 will explain about type of
AGV, section 2.3 will explain about AGV applications, section 2.4 will explore the
navigation of AGV and followed by section 2.5 summary of this chapter.

2.1

Introduction of the Automated Guided Vehicle (AGV)

mme

AGV is very important in product and moving material for

than 50 years. The firs ,

AGV was introduced and in vented by Barrett Electronic in 1953. It was a modified
towing tractor that was used to pull a trailer and follow an overhead wire in a

ァイッ」セ@

warehouse. Towing AGV was i" operation and production in many types of warehouse
by the early 1960's and late 1950's. In mid 1970's, the first big de.

men! of AGV

was the unit load vehicle. This unit load AGV was very popular and gained widespread
acceptance in material handling marketplace because their abilities to serve several
functions. Hence, AGV has evolved into complex material handling transport by using
laser and natural target navigation technologies.

a

According to Tanchoco and Bilge, ( 1997) AGV is a material handling in manufacturing
system is becoming easier as the automated machine technology has improved. One of
the material handling methods that has been widely used in most industry nowadays is
the Automated Guided Vehicle System or better known as the AGV. It has bec9 e one
of he fastest growing classes of equipment in the material handling industry. AGV is
one type of Material Handling Equipment (MHE) like conveyors, cranes & hoists,
elevator & lifts, automatic storage & retrieval system and so on which are focuses on
process of transferring something from one place to another places especially in
industrial sector or industrial warehouse. Actually, the goals to maintain or improve

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product quality reduce damage and provide protection of materials, promote safety and
improve working condition, promote productivity, control inventory and so on. For
further information, AGV is a driver less vehicle capable of moving along predetermined
paths and performing certain prescribed duties. AGVs have become increasingly popular
as a means of horizontal material handling transportation system. They arc used
wherever there is a need for an autonomous transportation system. AGV are particularly
useful where products need to be handled carefully or the environment is potentially
dangerous to humans. Examples include handling of telecommunication products, IC
chips, voltage cables and radioactive materials. In the automotive manufacturing
industry, AGV have been combined with robots to perform weldil'J and painting
operation. (Yaghoubi, et. al.2012). Now in the modern technology there are many
researchers that have shown interests in improving the system in order to achieve more
profit, productivity and flexibility in manufacturing environment.

m

Groover, (2008) stated that AGV is used for the internal and external transport QJl
l!iiiierials (refem gure 2.1 ). Usually, AGV is mostly used in manufacturing systems.
The AGV is also used for repeating transportation tasks in other areas, such a
warehouses container terminals and external transportation systems.

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Figure 2.1 AGV used in internal logis1ic. (Groover, 2008).

D
2.2

Types of Automated Guided Ve hicle (AGV)

D
Automated guided vehicles can be divided into three categories:
Driverless Trains
Pallet Trucks
Unit Load Carriers

2.2.1 Driverless T rains

m

Driverless trains consist of a towing vehicle pu lling one or more trailers to from trains
(refer Figure 2.2). It was the first type of ACfiio be invented and it still widely used
today. A common application is moving heavy payloads over long distance in
warehouse or factories with or without intermediate pickup and drop-off point along the
path. For trains cw isting of five to ten trailers, this is an efficient transport system
(Groover, 2008). Towing vehicles can pull a multitude of trailer types and have

capag es ranging from 8,000 pounds to 60,000 pounds (Yaghoubi et.al. 20 12).
The tugger, or tow-train AGV, has a design similar to standard tow tractors (Dziwis,
2005).

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Figure 2.2 D1iverless automated guided trains.
(http://www.aziendainfiera.it/en/p/veicolo-guida-automatica-scaglia-indeva)

a

2.2.2 fltllet Trucks
Automated g!lided pallet trucks, (Figure 2.3), are used to move palletized loads along
predetermined paths. [n the typica\ applications the vehicle is backed into the loaded
pallet by human worker who steer the truck and use its forks to elevate the load slightly.
[Then the worker drives the pallet truck to the guide pat1' and programs it is destination
and the vehicle proceed automatically to the destination for unloading. The capacity of
an AGV pallet truck ranges up to several thousand kilogram,

fJdsome trucks are

capable of handling two pallets rather than one (Groover, 2008). Designed to transport
palletized loads to and

tamfloor level, eliminating the need for fixed load stands

(Yaghoubi et. al. 2012). Conventional forked vehicles have standard fork truck masts
(hydraulic or ball-screw) and forks integrated into their design. The interface between

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