TABLE OF CONTENTS
CHAPTER
ONE
CHAPTER ONE
1.1 INTRODUCTION
1.2 PREAMBLE
1.3 SCOPE OF THE
CVMIMS.
1.4
NEEDS FOR CVMIMS
1.5
OBJECTIVES OF CVMIMS.
1.6
MAINTENANCE
1.5
FUNCTION OF
MAINTENANCE
1.5.1
INSPECTION/CHECK UP
1.5.2
LUBRICATION
1.5.3
PLANNING AND SCHEDULING
1.5.4
RECORD AND ANALYSIS
1.5.5
STORAGE OF SPARE PARTS
1.7 TRAINING OF MAINTENANCE STAFF
1.7.1 TYPES OF MAINTENANCE
1.7.2 PLANNED MAINTENANCE
1.7.3 PREVENTIVE MAINTENANCE
1.7.4 RUNNING
MAINTENANCE
1.7.5 SHUTDOWN
MAINTENANCE
1.7.6 TIME-BASED
PREVENTIVE MAINTENANCE
1.7.7 CONDITION BASED MAINTENANCE
1.7.8 CORRECTIVE MAINTENANCE
1.7.9 ANALYSIS OF THE SELECTED MAINTENANCE MODE
1.8.0 DATA MANAGEMENT
1.8.1 DATA
MANAGEMENT SYSTEM OF A VEHICLE
1.8.2 CLASSIFICATION OF DATA MANAGEMENT
1.8.3 RELATIONAL DATA BASE MAINTENANCE SYSTEM
1.8.4 FLAT FILE
DATABASE MANAGEMENT SYSTEM
1.8.5 HIERARCHICAL
DATA MANAGEMENT SYSTEM
1.8.6 NETWORK
DATABASE MANAGEMENT SYSTEM
1.8.7 OBJECTIVE ORIENTED DATA MANAGEMENT SYSTEM:
1.8.8 LIMITATION
CHAPTER
TWO
2.0 UNDER
CVMIMS REVIEW
2.1 BACKGROUND OF CVMIMS
2.2 CVMIMS REVIEW
2.3 MODULES
IN THE SYSTEM
2.3.1 EQUIPMENT
LIST MODULE
2.3.2 DOCUMENT MANAGEMENT
2.3.3 SCHEDULING
2.3.4 TRACKING-DEVICE [CTO6 GPS/GSM]
2.4 FEATURES OF TRACKING DEVICES
CHAPTER THREE
3.0 SYSTEM ANALYSIS
3.1 SYSTEM DESIGN
3.1.1 SIMPLIFICATION:
3.1.2 STANDARDIZATION:
3.1.3 SPECIFICATION:
3.2 FUNCTIONAL REQUIREMENT
3.2.1 EQUIPMENT
3.2.2 WORK REQUEST:
3.2.3 WORK ORDER TRACKING:
3.2.4. WORK
MANAGEMENT:
3.2.5. QUICK
REPORTING:
3.2.6 PREVENTIVE MAINTENANCE:
.2.7. FACILITY/EQUIPMENT HISTORY:
3.3. SOFTWARE-REQUIREMENT
3.3.0 DESIGN LANGUAGE, DATABASE AND LIBRARIES USED
3.3.1 LANGUAGE
3.3.2 DATA-
BASE
3.3.3 LIBRARIES
3.3.4 CHARACTERISTICS
3.3.5 BROWSER SUPPORT
3.3.6 INCLUDING THE LIBRARY
3.3.8 DESIGN PATTERN
3.4. HARDWARE
REQUIREMENTS
CHAPTER FOUR
4.1. DATA STRUCTURE
4.2 SERVER SIDE
4.3 DEVELOPMENT
OF THE SYSTEM
4.4.1
UML Diagrams
4.5 ACTIVITY DIAGRAMS
4.6 SWIMLAN
diagram
4.7 Sequence
Diagrams
4.8 CLASS DIAGRAM
4.9 Components
Diagram
4.10 Deployment Diagrams.
4.11 Object
Diagram
4.12 SCREEN-SHOT OF THE SOFTWARE MAIN INTERFACE
CHAPTER FIVE
CONCLUSION AND RECOMMENDATION
5.1 CONCLUSION
5.2 RECOMMENDATION.
CHAPTER
ONE
1.0 INTRODUCTION
1.1 PREAMBLE
The modern technological trends across the globe have
undoubtedly called for the computerization of nearly all human endeavors. This
will of course make the problem solving easier within the shortest period of
time.
Prior to the computer age, paper record were
maintained the track, the work, report were simply but costly to prepare. With
the advent of the computer age, it was recognized that the computer software
could be used to record work requirement, track the status of the work and
analyze the recorded data for managing the work, report and help to control
cost. [www.encyclopeadia.com, data accessed]
Computers
are powerful, relatively inexpensive and easy to use and tools to support
improved maintenance practice. Tools are available for facility professionals
that can manage the planning and a day to day operation and maintenance
activities required for a simple facility or a large complex, providing all of
the information required to manage the work, the work force and the costs
necessary to generate report and hysterical data.
The goal of a maintenance
manager is to employ a management system that optimizes the use of scarce
resources [man power, equipment, material and fund] to maintain the facility
and equipment that are the responsibility of the maintenance organization. The
system should provide for integrated process giving the manager control over
the maintenance of all facilities and maintenance equipment from acquisition to
disposal.
The following identifies what the system is expected
to do,
a.
Address all the
resources involved
b.
Maintain vehicle
maintenance inventory
c.
Record and
maintain work history
d.
Include work task
and frequencies
e.
Accommodate all
method of work accomplishment
f.
Effectively
interfere and communicate with related supporting system ranging from work
generation through work performance and evaluation.
g.
Support each customer’s
mission.
h.
Ensure
communication with each customer.
i.
Provide feedback
information for analysis.
j.
Reduce cost
through effective maintenance planning.
Work shop manager may employ this system
for proper documentation of the work done in the work shop, because a situation
may arise where customers try to use the maintenance record of the organization
for unnecessary claims and demand for compensation. With this system, the
workshop manager can depend on the organization by providing the work details
offered to the customers.
Therefore, this project ”computerized
vehicle maintenance information management system” is aimed at designing a
computerized system for keeping track of the vast work load of vehicle
maintenance operation carried out at different maintenance workshops
1.2 SCOPE OF THE
CVMIMS.
The scope of the project is mainly on the
activities of the maintenance management of vehicle in the workshop. The
package software will be able to create a data base for all vehicle involved,
schedule the routine maintenance required by the vehicle, send alert and
notification to the owners of the vehicle reminding them on the current events
on works to be carried out on their vehicle enable the owner of the vehicle to
access the software from anywhere in the world because it is internet based.
Data security will also be provided unlike
the existing manual system which is not reliable and dependable, experience
shows that enemy of progress manipulate data to suit their selfish interest.
1.3 NEEDS
FOR CVMIMS
The need for the project is to phase out
the old system of maintenance documentation and management by making the
advanced technology. This old system is so characterized by all sorts of errors
and managements.
This project when completed will correct
all the errors of the old methods which have been used.
Therefore the computerize vehicle
maintenance information management system, will bring change in automobile
workshop and service station all around the county, by enabling easy management
of their day- to- day activities.
1.4 OBJECTIVES OF CVMIMS.
Ø It is not in doubt that any organization, society,
country or institution that is not in the computer race will soon force itself
out of the lane. This project is developed to meet up with the present
technological trend across the globe.
Ø An automobile or maintenance workshop may have up to
two hundred [200] vehicle under its management this will inevitably make the
maintenance management activities on enormous task CVMIMS will help to reduce
the work load especially in information section for quick decision making .
Ø A lot of time, is often used to document and manage
the maintenance activities using the manual method. This system will be
designed in such a way that the proper management will be done via the
computer, thereby saving time in accuracy of result and record keeping will
also be addressed by the new system, having designed a correct system, the
problem of wrong documentation will surely be solved. This is because computer
is what is represented as garbage in and garbage-out [GIGO].
Ø Furthermore, our main objective is to monitor the
odometer of a vehicle through installation of tracker in vehicle that will
enable us keep track of the vehicle mileage which will help us trigger
maintenance actions that are kilometer based as well as time based.
Ø CVMIMS is also intended to notify vehicle owners on
their handsets, all scheduled maintenance.
1.6
MAINTENANCE
Maintenance is often associated with
servicing equipment, replacing broken and worn-out components, carrying out
emergency repair and upkeep of building and service facilities.
All the combination of actions carried out
to keep or restore any asset [machine materials-equipment, building etc] to a
satisfactory operating condition can be considered as maintenances activities.
Maintenance
is the act of keeping a device or the machine to its expected life span. Any
equipment or machine which is not properly maintained will not perform
efficiently as it is expected to do. The maintenance of that machine by
replacing damaged part or general overhauling, thereby enables it to serve up
to expectation [French C.S L981].
By adopting unsystematic maintenance, it
is possible to achieve substantial breakdown which could create problem such as
loss in production, time rescheduling of production, material loss due to
sudden breakdown of a process, failure to recover overhead etc. (French C.S
1981).
1.7
FUNCTION OF
MAINTENANCE
The important functions of maintenance
are:
a.
Inspection and
check-up
b.
Lubrication
c.
Planning and
scheduling
d.
Record and
Analysis
e.
Storage of spare
parts
f.
Training of
maintenance staff
1.7.1
INSPECTION/CHECK UP
Maintenance staff kept for the purpose
should be well trained. The staff carried out both internal and external
inspection. Internal parts such as gear, bushes bearing tolerance in parts etc.
when machine is under pre-planned shutdown, external inspection means detecting
abnormal sound, vibration, heat smoke etc. when machine is in operation.
Frequency of inspection should be decided carefully considering the past
history of the machine and scheduled program for inspection (French C.S 1981).
1.7.2
LUBRICATION
This function of maintenance means the
application of right type of lubrication at the right time, at the right place
and in the right quantity, for this purpose, lubrication schedule should be
prepared to follow strictly (French C.S 1981)
1.7.3
PLANNING AND SCHEDULING
Every maintenance work should be
pre-planned on the basis analysis of past record. Thus schedule program must
specify the attention to be given daily, weekly, monthly, annually and
biannually. (French C.S 1981).
1.7.4
RECORD AND ANALYSIS
Effective records keeping are essential for good maintenance. For this purpose, record generally
maintained are operation maintenance institution manual, history cards and
history register, space, procurement register, inspection register, log book,
defects register etc. With the help of this record, possible cause of major
repetitive failures can be examined and rectified so as to avoid repetition.
These records help the Plant Engineers to prevent defects rather than
rectification after breakdown, know the reliability of machine for effective
production planning, decide life for the machine, forecast defects and plan to
rectify them, frequency of inspection and
check-ups, decide for purchase of a
new machine. In spite of best inspection and other preventive measure, failure
are bound to occur but can be reduced to a large extent (French C.S 1981).
1.7.5
STORAGE OF SPARE PARTS
It is essential to keep
the spare parts in adequate quantity to avoid loss of production. The level of
spare parts must be determined by considering factors as source of supply,
delivery period and availability. Standardization will help reduce the spare
parts inventory and will also help in specialization of maintenance of
particular type of machine. A very important factor in caring inventory is
trend in the technology on the operating system. Technology obsolescence can
cause huge inventory loss (Bamidele, J.O 2015)
1.7 TRAINING OF MAINTENANCE STAFF
An appropriate training is essential for
the maintenance personnel to carry out maintenance, inspection and repairs in a
systematic manner. (French C.S 1981).
1.7.1 TYPES OF MAINTENANCE
The objective of the maintenance system is
to ensure performance of the operation system at minimum total maintenance
cost. The reliability of an operation system is measured in term of probability
of its satisfactory operation for a period under specified condition. The
maintenance area system is needed to protect the operation system from
deviation, in accepted standards, in the quality of output or in the cost and
time to provide the same. The various types of maintenance and their relationship
are:
1.7.2 PLANNED MAINTENANCE
Maintenance work is organized and carried
out with forethought, control and record. This can be classified into two main
activities, as preventive and corrective. (French C.S 1981).
1.7.3 PREVENTIVE MAINTENANCE
This type of maintenance is used in those
cases where deterioration and failure pattern of an item can be described with
a probability distribution. The routine inspections and serving are design to
detect potential failure condition and suggest action which may range from
monitoring or major repairs to replacing parts or even entre assemblies either
immediately or at later time. Preventive maintenance can be carried out on
machine either when running or shutdown, called running maintenance and
shutdown maintenance respectively (French C.S 1981).
1.7.4 RUNNING MAINTENANCE
It is a maintenance which can be done when
the item or maintenance is in service.
1.7.5 SHUTDOWN MAINTENANCE
Maintenance which is carried out when item
is machined and it’s out of service.
Generally, preventive maintenance can be time-based or
condition-based.
1.7.6 TIME-BASED
PREVENTIVE MAINTENANCE
This maintenance is effective when the
failure of any item of equipment is time-dependent and the item is expected to
wear-out within the life of the equipment. In addition to this, the total cost
of replacement of the item should be substantially less than that of failure
replacement repair [French C.S. 1981].
1.7.7 CONDITION BASED MAINTENANCE
It is corrective maintenance based on
condition monitoring, where continuous check are made to expose incipient
fault. Here one can also make use of predictive maintenance by using a technique called ‘signature
analysis which is intended. Continually monitor the health of the equipment by
systematically recording signals information derive from the form of mechanical
vibrations, noise signals, acoustic and thermal emissions, small pressure,
changes in chemical composition etc although this techniques is very
sophisticated and useful, it is not always used because it involves high
man-power and monitoring costs and is also not appropriate to monitor some
parameters [French C.S 1981].
1.7.8 CORRECTIVE MAINTENANCE
This is carried out to restore an item to
the acceptable standard where replacement is not scheduled. The time of
replacement of the item is indicated by it priority rating. [French C.S1981].
i.
Break down maintenance: Maintenance work implemented only when facilities or
equipment fail to operate and are then repaired at a considerable cost.
ii.
Energy maintenance:
An up planned maintenance where maintenance work is caused by an unforeseen
breakdown or damage.
This type of maintenance should be expected rather
than the rule. To ensure this planned maintenance system should be followed.
1.7.9 ANALYSIS OF THE SELECTED MAINTENANCE MODE
Maintenance mode selected for this system [CVMIMS] is
preventive maintenance and predictive maintenance. The CVMIMS will be capable
of notifying the vehicle owners on some preventive and predictive maintenance
such as daily, weekly, quarterly and yearly checkups which are suppose to be
done on the vehicle will be taken care of by CVMIMS. This maintenance will be
schedule based on the history of the vehicle created on the data base of the
CVMIMS.
1.8.0 DATA MANAGEMENT
Data management systems have been
developed to be a fundamental part of larger computer application and system
which involves the management of information. Database system are used in
software system that handles massive amount of data, such as libraries and commerce system
such data base. [www.encylopaedia.com data accessed].
Data systems are also used as an
integrated part of smaller application, i.e. application embedded data base
system, such as word processor, e-mail clients, and personal organizers.
Finally, device embedded data base system which are normally simply referred to
as embedded data base, are data base embedded in hardware products such as
mobile phones, toys and vehicle ……..
1.8.1 DATA
MANAGEMENT SYSTEM OF A VEHICLE
Most functionality in modern vehicles such
as cars is in one way or another controlled by computers. Mechanical systems
are increasingly replaced by software residing in the vehicle control system.
As these control system grows larger and larger, they become increasingly more
complex to develop and maintain [www.enclyclopaedia.com, data accessed.
The current data management approach is
becoming increasingly inadequate as system become more complex and a need for
data management on a high level of abstraction has emerged, the solution to
data management approach through the use of data base maintenance system so as
to provide a powerful means of access to data in a controlled fashion.
[www.encyclopaedia.com].
1.8.2 CLASSIFICATION OF DATA MANAGEMENT
The classification of data management system is determined
by the database model. A data base model is the manner in which the data
collected and stored, manage and administered. The various database management
systems base on these data models are:
1.8.3 RELATIONAL DATA BASE MAINTENANCE SYSTEM
Relational database management systems
today, they are relatively easy to use.
Relational data base
management systems are named so because of the characteristics of normalizing
the data which is usually stored in tables. The relational model relies on
normalizing data within rows and columns in tables which has to be correctly
managed by joining one or more table. Data in this type of model is stored in
fixed predefined structured query language [SQL]. Relational data base systems
include oracle, Ms SQL server, IBM DB2, MYSQL, SQlite and poster SQL among many
others [www.encyclopaedia.com, data accessed).
1.8.4 FLAT FILE
DATABASE MANAGEMENT SYSTEM
Flat file base data management system are
probably the simplest of them all, these are sometimes called model. These come
in human readable text formats as well as in binary formats these are idea for
standalone application, holding software configuration and native format
storage models. Flat files in a formatted row and column model rely on
assumption that every item in a particular model consist of the same data. One
common example of this type of data base is the CSV [comma separated values]
and another is a spread sheet such as ms excel (www.encyclopaedia.com, data
accessed]
1.8.5
HIERARCHICAL DATA MANAGEMENT SYSTEM
These operate on the parent child tree like model.
These normally have a 1.N relationship
and are good for storing data with items
describing attributes, features and so on; these could store books with
information on chapters and verses. They can also be used to store a data base
of songs, recipes, models of phones and anything that can be stored in a nested
format. Hierarchical data base management systems are useful for the CVMIMS in building the equipment list
[www.encyclopaedia.com, data accessed).
1.8.6 NETWORK
DATABASE MANAGEMENT SYSTEM
This uses a data model similar to
hierarchical data base management systems. The major different here is that the
tree structure in the network model can have many parents to many children
relational model. The network model structure is based on records and sets and
most of this data base management system tend to be very flexible but are
rarely used and were very quite common in the 1960’s and 1970’s searching
for an item in this model require the
program to traverse the entire data set which is quite cumbersome. These have mainly been replaced by relational data
base management system in today’s modern computing [www.encyclopaedia.com data
accessed).
1.8.7 OBJECTIVE ORIENTED DATA MANAGEMENT SYSTEM:
In this data base model ‘the object and
its data are seen as one and accessed through Pointers rather than stored in
relational table model objects oriented database model consists of diverse
structure and is quite extensible. The database model was designed to work closely
with programs built with object oriented programming language there by almost
making the data and the program operation as one. Examples of object oriented
database include: IBM, DB40, DTS/S1 from obsidian dynamics
(www.encyclopaedia.com, data accessed).
1.8.8 LIMITATION
Due to the cumbersome nature of the
project work, every aspect of this project which could not be dealt with in
details, some areas such as shutdown, maintenance and running maintenance.
The device installed in the vehicle cannot
diagnose the problem on the vehicle; it can only monitor the mileage which is
in kilometer base. Hence, this project work is limited over the scope as
explained above.
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