CHAPTER ONE

INTRODUCTION

1.1 BACKGROUND OF STUDY

There has been continuous quest for man to improve his well being through, reactions to problems and challenges posed by his environment. Over the years, attendants in the cafeteria/ fast food joints use to go from table to table in order to know what customers demanded before they could serve them. This was a very hectic duty and also slow mode of service. This has led to an overwhelming need for a device that will always display the customers’ need on each table.

This project design is simply used to display the items demanded by each customer. Each table has a remote with three by four set of menu selection. The processor is able to decode whichever button is pressed. The tables are numbered. Customer on every table orders the item he or she needed with the remote. Then, a screen in the kitchen is used to display the table number and the items demanded.
The major components used in this design are 8951 microprocessor, crystal oscillator, Electronic switches, Display units (LCD), Buffer (74244), 3-8 lines decoder (74138), and some other common readily

available components. This project is microprocessor based, which is a dedicated or embedded controller. This microprocessor is used to control and display information in the device therefore it can be termed a micro controller because of the controlling function it performs. The type of micro controller used is the 8951 which is an 8051 family chip.
The 8051 micro controller has an external Read Only Memory (ROM) but the 8951 has an internal Rom. The 8951 Micro processor accesses external devices using all of its ports 0, 1, 2 and 3.The Rom inside the 8951 contains the program that the processor executes on boot up. The program contained in the processor should be debugged and troubleshot in order to get the device up and running, if not, any mistake in the program will lead to improper working of the device. The 8051 operates based on an external crystal oscillator which it uses to synchronize its operation.
A matrix of light emitting diodes is used in this prototype instead of liquid crystal display (LCD) to display the information contained in the program on the screen when the device is boot-up. This information is displayed in a form that can be understood readily by the user or the operator. As soon as an input is made using the remote control, an alarm sounds from a loudspeaker to alert the attendants in the kitchen or receptionists

to enable them check the screen. The design is reliable and has high efficiency as a result of the micro controller and some other components used.
1.2 MOTIVATION

The system of going from table to table in organizations and hospitality industries in our society and asking customers what they need is worrisome and hectic to the society. One is disturbed the time it takes, as well as the difficulty it poses to the attendants who work in such places. This device will enable the attendants to see the items demanded from any table by looking on a screen thereby reducing queue and saving cost.

1.3 JUSTIFICATION FOR THE PROJECT
It has been observed that the usual practice of attendants enquiring from customers their needs before services are rendered in the hospitality industries are associated with many problems which includes:
• Queue.
• Increased cost (labour cost).

• Loss of customers due to dissatisfaction in service.

• Time wastage.

To overcome these outlined problems, this prototype equipment is designed.

1.4 SCOPE OF THE WORK
This wireless menu selection system prototype is intended to request for x; y; z; services from customers in an organization. This research work aimed at constructing effective software and hardware for wireless menu selection system specifically has the following objectives:
To produce a device that:

 Saves the time of going from one table to another to ask customers of their needs.
 Has program control remote, which helps to eliminate the use of switches and running of cables.
 Create a system that can reduce sensitivity and ensure integrity of the complete microprocessor system during all forms of environmental stress (shock, transient noise) etc.
 Removes queues associated with services in organizations and the hospitality industries.
The hardware construction is microprocessor- based.

1.5 SIGNIFICANCE OF THE STUDY

The significance of this research work is that the system designed can be useful in the hospitality industries, cafeteria and large or small fast food joints. The merits are:

• Time: This work saves the time it takes to go from one table to another to know customers need.
• Cost: The system reduces cost as the numbers of attendants needed are minimal.
• Queues are greatly reduced thereby enhancing customer’s satisfaction.
• This work can be used for academic purpose

• Generation of fund: When an organization makes greater profit, they tend to pay larger tax to the government.
However, the use of this equipment reduces the number of attendants required is the industry.

1.6 BLOCK DIAGRAM OVERVIEW OF THE PROJECT Figure 1.1is the block diagram overview of the project.

 

 

 

 

• Fig 1.1 Block diagram overview of a wireless
Menu selection system for electronic-queue based Service delivery.

1.7 PROJECT OUTLINE
The design and construction of wireless menu selection system for electronic- queue based service delivery has four major sections viz; the regulated power supply, the control section, the display section and the remote control section.
The regulated power supply is used to power the circuit; it is a regulated power because digital IC’S were involved in the circuitry.
Control section is where the processes involved in this design were controlled. It includes the 8951 microprocessor and the crystal oscillator. The 8951 controls the program code in its ROM and other components around it. The crystal is used by the 8951 to synchronize its operation. The user or operator uses the display section to display the information on the screen in a form that can be understood readily.
The remote control section is used by the customer on any of the tables to indicate a particular item he wants.

This project work is organized as follows: Chapter two dealt with review of some related literatures, discuss general principles for menu system design, technologies used for the development, and applications. In chapter three, methodology used was stated and system analysis done

based on the chosen method. The chapter will conclude by discussing the limitations of the system.
In chapter four we shall be dealing with the system design itself. We will also make specifications; handle the design of input subsystems, output subsystems, and the control subsystem. The control software design statements and the corresponding control algorithm will also be discussed here. The chapter shall end with an elaborate block diagram of the entire system. The chapter five of this work will deal with the implementation of the hardware and software designs, testing the system, and performance evaluation. The chapter will conclude with packaging issues, costing, and deployment. The last chapter (six) will summarize the achievement of the project work, states problems encountered and proffer solutions to them, as well as make recommendations and suggestions for further improvement.