Interacting college mobile system
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The document describes developing a mobile system to help students interact with their college. It uses DTMF signaling over GSM to allow students to access information about classrooms and campus locations by phone. The system includes a DTMF decoder, microcontroller, LED displays and large LCD screen. Students can dial a number and use their phone keypad to select options that will display directions or details on the LCD screen. The goal is to make the campus easier for new students to navigate without prior knowledge of its layout.
Interacting college mobile system
- 1. INTERACTING COLLEGE MOBILE SYSTEM
- 2. OBJECTIVE To develop a interacting college mobile system. Make new students easy to identify their class room. Any person entering the college without having any knowledge regarding branches, office room find this project as the medium of
- 3. INTRODUCTION Interaction is based on GSM signals of a mobile phone. DTMF signaling technique is utilised. A large LCD display is used for the system.
- 5. DTMF SIGNALS • Popular signaling method between telephones and switching centers • Also used for signaling between the Telephone network and computer networks • Transmitted over a telephone line • Uses speech frequency signals • Superposition of 2 sine waves with different frequencies
- 6. THE DTMF KEYPAD 1209 Hz 1336 Hz 1477 Hz 697 Hz 1 2 3 770 Hz 4 5 6 852 Hz 7 8 9 941 Hz * 0 #
- 8. Pin Diagram of AT89S52 Micro Controller
- 9. MT8870 is used as DTMF decoder. LED’S are used for signaling purpose. programming to the microcontroller is done in Embedded C language. Keil C software used for interfacing the microcontroller.
- 12. Main Displ ay JUST DIAL 9030000123 to INTERACT
- 14. When the option LIBRARY is selected.
- 15. Future Scope Transport systems like railways. Multi-specialty hospitals. Multiplex theaters.
- 16. CONCLUSION A well interacting college mobile system have been developed. Reception counters at college campus can be reduced. One or more people can also interact at the same time.