M2M: GSM Network for Robots using DTMF
In recent world cellular mobile communication system has developed significantly. In almost all sector we use mobile phones for communication. Two main reasons for vast mobile communication are mobility and coverage area. We use mobile to talk, share our status, asks for help and so on. In this paper we have developed a system where robots can call each other, communicate with each other, ask their positions, ask for help, can increase their database of phone numbers of other robots asking each other and lots more. The number of robots can communicate with each other is unlimited and distance between robots to communicate is also unlimited. Wherever GSM network is available robots can communicate with each other. Any robot from U.S.A can communicate with any robot from Bangladesh. But obviously the robot should have credits in its mobile to make the call. Since only mobile phone is used as transmitter & receiver, the system is much simple, cost effective and easy to implement.
