Abstract

In this paper we developed a computer based wireless advertising communication system (CBWACS) that enables the user to advertise whatever he wants from his own office to the screen in front of the customer via wireless communication system. This system consists of two PIC microcontrollers, transmitter, receiver, LCD, serial cable and antenna. The main advantages of the system are: the wireless structure and the system is less susceptible to noise and other interferences because it uses digital communication techniques.

Highlights

  • The idea of computer based wireless advertising communication system (CBWACS) came from the need to visualize some certain information in public by typing it in the user's display and sending it via wireless system to main display

  • The structure of a CBWACS system consists of the following essential components: two PIC microcontrollers, transmitter, receiver, LCD, serial cable, and antenna

  • As the message flows in the system, arriving to the first PIC; the sequence is read in the following manner: the PIC microcontroller reads the sequence letters letter by letter

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Summary

INTRODUCTION

The idea of CBWACS came from the need to visualize some certain information in public by typing it in the user's display and sending it via wireless system to main display. The system provides a kind of dialog and interaction between the company and its customers. From what had been described we can see that CBWACS shows us a clear view of what the future would look like; by its capability of establishing an interaction between companies and their clients, that save time and money. Systems based on analogue communication techniques are more sensitive to the interferences. We designed our system to have more handling capability to noise by modulating the base-band signals to band-pass signals and transmit the data using digital techniques. The advantages of digital communications are: 1. Digital signals are represented (ones or zeros) compared with analogue ones. 2. Digital circuits are less subject to distortion and interference unlike analogue circuits, because binary digits operate in one of two cases i.e. fully on or fully off. More reliable and can be produced at lower cost than analog circuits

Structure of CBWACS
TRANSMITTING PART DATA PROCESSING
Data Transmission
RECEIVING PART DATA PROCESSING
Demodulation and Detection
Passing Textual Information-to-Information Sink
CBWACS COMPONENTS CONNECTION
Transmission Part
Receiving Part This part has the following components
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