I am making an emergency detection system that will be used on the streets. How can I make it so that when a person presses a button near a lamp post with an RF receiver, a signal will be sent to a PC, giving the location of the lamp post that receive it?
You do not need RFID to do this. In fact, I don't think RFID would be appropriate. Radio frequency identification is a short-range technology. Even long-range, active RFID systems can only send data a few thousand meters or yards. I think you would be better off using a cellular device on each pole and having it be powered by the electricity used to power the lamp pole. The device could be set up to transmit its unique location whenever a button was pressed.
—Mark Roberti, Founder and Editor, RFID Journal