18-12-2012, 05:12 PM
intended to designing and implementing a display system
[attachment=44278]
ABSTRACT
This project is intended to designing and implementing a display system (notice board) which can be accessed remotely through the use of GSM technology to access the display by making the communication between the microcontroller and mobile equipment. The remote micro controlled notice board will have a GSM modem connected to it, so if the user wants to display the message he will send the message in SMS format, the modem connected to the microcontroller will receive the message and update the display according to the messages. For every message received from the users’ mobile, the system will check for the password and if the password is correct the microcontroller will send the message to the display system and the message will be displayed. For incorrect password the microcontroller will not send the message to the display unit. The microcontroller tolerates fixed number of incorrect password attempts and if exceeded an indication is given in terms of sound from a buzzer connected to it. This is also the case when the display unit is not properly working. For this project only text message is assumed and only one display unit is used.
INTRODUCTION
In the near future every advertisement is going to be digital. The big shops and shopping centers are already using the digital moving displays now. In Railway stations and bus stands everything that is ticket information, platform number etc are also displayed in digital moving display. But in these displays if the message or style is to be changed then the user has to go there and connect the display to PC or laptop and make the changes required. Suppose the same message is to be displayed in main centers of the cities means the assigned person has to go there with laptop and change by connecting directly to the display system. And for the changes which needs to be done within a short interval of time and at different locations this becomes practically impossible. This project will then cite on designing and implementation of a microcontroller based notice board which will be remotely controlled over GSM technology. The designing will be based on assumption that the message sent is a text message and that authentication will be through password which will be sent with the message and verified by the micro controller. The GSM modem will be connected to the microcontroller and will have a SIM card attached to it. There will also be an external memory for keeping the messages for offline processes. The buzzers will also be incorporated for providing notification when the display is not working. The system will be one way with feedback given by buzzers sounding only.
MOTIVATION
Upon deciding the design of this system as my final year project, a little thought came in my mind that say a certain school or college or even a militia administration was alerted that a dangerous and harmful situation such as a bomb explosion was to occur in a few minutes to come at a certain residential area under the institution and that the administration is not located nearby the particular area, or even with a traffic jam in between with no way to prevent the situation from occurring; then this would be very difficult for the information to reach all the members of the particular residence that they must vacate as fast early as possible. Even with the use of mobile phones it would still be difficult to notify all the members at a time.
PROBLEM STATEMENT
i. Most of the digital display notice boards are controlled by users connected directly to the display system through laptops or PCs.
ii. The PC controlled display systems are exposed to dangers of collapsing due to viruses in the operating system if not properly protected.
iii. The PC directly connected display systems are time consuming as needs a user to travel to the notice board locations and change the style and type of the advertisement.
iv. The PC directly connected display systems causes difficulties in managing a number of notice boards located at different sites.
OBJECTIVE OF THE PROJECT
The main objective of this project is to design and implement a microcontroller based display system (notice board) which can be accessed and controlled remotely through the use of GSM technology.
SPECIFIC OBJECTIVES
I. To have a GSM modem connected to a microcontroller to link the users’ mobile phones and the micro-controlled display system.
II. To have a microcontroller programmed in such a way that when the GSM modem connected to it receives any message, the microcontroller will read the message from the modem through a serial port and verify for the password.
III. To have a display system controlled by a microcontroller in such a way that whenever the microcontroller verifies the password that it is correct, it starts displaying the message as a new update.
[attachment=44278]
ABSTRACT
This project is intended to designing and implementing a display system (notice board) which can be accessed remotely through the use of GSM technology to access the display by making the communication between the microcontroller and mobile equipment. The remote micro controlled notice board will have a GSM modem connected to it, so if the user wants to display the message he will send the message in SMS format, the modem connected to the microcontroller will receive the message and update the display according to the messages. For every message received from the users’ mobile, the system will check for the password and if the password is correct the microcontroller will send the message to the display system and the message will be displayed. For incorrect password the microcontroller will not send the message to the display unit. The microcontroller tolerates fixed number of incorrect password attempts and if exceeded an indication is given in terms of sound from a buzzer connected to it. This is also the case when the display unit is not properly working. For this project only text message is assumed and only one display unit is used.
INTRODUCTION
In the near future every advertisement is going to be digital. The big shops and shopping centers are already using the digital moving displays now. In Railway stations and bus stands everything that is ticket information, platform number etc are also displayed in digital moving display. But in these displays if the message or style is to be changed then the user has to go there and connect the display to PC or laptop and make the changes required. Suppose the same message is to be displayed in main centers of the cities means the assigned person has to go there with laptop and change by connecting directly to the display system. And for the changes which needs to be done within a short interval of time and at different locations this becomes practically impossible. This project will then cite on designing and implementation of a microcontroller based notice board which will be remotely controlled over GSM technology. The designing will be based on assumption that the message sent is a text message and that authentication will be through password which will be sent with the message and verified by the micro controller. The GSM modem will be connected to the microcontroller and will have a SIM card attached to it. There will also be an external memory for keeping the messages for offline processes. The buzzers will also be incorporated for providing notification when the display is not working. The system will be one way with feedback given by buzzers sounding only.
MOTIVATION
Upon deciding the design of this system as my final year project, a little thought came in my mind that say a certain school or college or even a militia administration was alerted that a dangerous and harmful situation such as a bomb explosion was to occur in a few minutes to come at a certain residential area under the institution and that the administration is not located nearby the particular area, or even with a traffic jam in between with no way to prevent the situation from occurring; then this would be very difficult for the information to reach all the members of the particular residence that they must vacate as fast early as possible. Even with the use of mobile phones it would still be difficult to notify all the members at a time.
PROBLEM STATEMENT
i. Most of the digital display notice boards are controlled by users connected directly to the display system through laptops or PCs.
ii. The PC controlled display systems are exposed to dangers of collapsing due to viruses in the operating system if not properly protected.
iii. The PC directly connected display systems are time consuming as needs a user to travel to the notice board locations and change the style and type of the advertisement.
iv. The PC directly connected display systems causes difficulties in managing a number of notice boards located at different sites.
OBJECTIVE OF THE PROJECT
The main objective of this project is to design and implement a microcontroller based display system (notice board) which can be accessed and controlled remotely through the use of GSM technology.
SPECIFIC OBJECTIVES
I. To have a GSM modem connected to a microcontroller to link the users’ mobile phones and the micro-controlled display system.
II. To have a microcontroller programmed in such a way that when the GSM modem connected to it receives any message, the microcontroller will read the message from the modem through a serial port and verify for the password.
III. To have a display system controlled by a microcontroller in such a way that whenever the microcontroller verifies the password that it is correct, it starts displaying the message as a new update.