Security system is currently necessary, especially in the office building, super market or residence. Thus a closed circuit camera has become a popular equipment. As communication via telephone line has been improving to transmit a various information form including video signal, so in this project has applied a communication via telephone line to use with security system. It will can transmit a video signal from a camera via telephone line and then display on monitor by I/O instrument to connect communicating system.
By
Pradistha Katukaew
Pradistha Katukaew
Piti Aucharern
