Week 7

BLOCK DIAGRAM

Research about the block diagram and required components for this project. Lastly, this block diagram is approved by Sir Suhaimi. The component for this GSM Based Advertisement Display Board project is Global System for Mobile Communication (GSM), PIC16F877A and Led Display 48x8 dot matrix.

Blog Diagram definition :

Composition of different shapes and lines showing how the components of a program, process, or system are related to, and depend upon, one another. It may also show how the system operates, what are its inputs and outputs at various stages, and how the energy, information, and/or materials flow through it.

The function of GSM is to receive and transfer the message from user. When the users send the message, the GSM keep store the message into simcard. This communication between user and GSM is used AT command. After that, the message transfer to PIC microcontroller. The data cannot send directly from GSM to PIC because to avoid the PIC pin from destroy and the output from distortion. The MAX232 is needed to interface between GSM and PIC because the MAX232 is to convert single 5v to 5v ttl/cmos. Lastly, the PIC executes the message and displays the message into display advertisement board.

Week 6

PROBLEM STATEMENTS

      Nowadays LED message scrolling displays are becoming very popular for advertisements. These displays are used in shopping malls, theaters, public transportation, traffic signs, and highways signs. The big problem with these displays is to carry a computer or special keyboard for generating and sending messages to LED moving display boards dynamically. Carrying a host computer or special keyboard every time to generate message for LED display boards is big headache and also increase cost and waste their time .So for this project it is using a GSM.This project implements the emerging applications of the GSM technology. Using GSM networks, a control system has been proposed that will act as an embedded system which can monitor and control the other devices locally using built-in input and output peripherals. This system allows the user to effectively monitor and control the advertisement board via the mobile phone set by sending commands in the form of SMS. The type of the message to be performed depends on the nature of the SMS sent. 

Week 5

INTRODUCTION

                 Wireless communication has announced its arrival on big stage and the worldis going mobile. The number of people with cell phones is on the rise as we wish to control everything and without moving an inch. This electronic Advertisement Display Board is possible through embedded systems. Various technical arenas in the field of Telecommunication and Embedded Systems have come very near to the common people. The use of embedded system in the communication has given rise to many interesting applications that ensures comfort and safety to human life. Improvements in the Networking technologies have fostered growth of very dense networks. Land line telephones have been becoming less popular and people now prefer communicating while on the move

                 Main function of GSM Based Advertisement Display Board is we can send message to any distant located Advertisement Display Board from any remote area. By interfacing the GSM modem with mobile phone, we can send text message from any remote area.GSM MODEM, SIM, LCD (Liquid Crystal Display), microcontroller, power supply and also some connecting wires are the common peripherals required for developing any GSM based applications.

                Our administrator uses a simple GSM based handset for sending messages to different display stations which are located far away from him. The GSM modem used at the receiver end is used to receive the messages and LCD to display them. As we are using mobile for sending messages, it is easy to handle and operate. As it is a wireless transmission the system has very less errors and maintenance. The sent message is stored in the SIM of the modem. By issuing proper AT commands, it is read from the modem and stored in the microcontroller. In order to reduce the current required for the module and to simplify the hardware and wiring necessary to drive the LEDs this design uses Multiplexing.

Week 4

LOGBOOK OR BLOG

Discuss with Sir Suhaimi whether to submit the logbook or create a blog for final year project (FYP 1). After discussion, we choose to build a blog for easy to Sir Suhaimi monitor every activity during the process of making this project.

At the same time need to research about the block diagram for this GSM Based Advertisement Display Board. Furthermore,need more research how its work and the function for each component.