| 摘要 |
The present invention relates to a residential security system especially one of Web smart type mainly passing through the traditional PSTN (Public Switch Telephone Network) for dual-direction information control and video signal transmission. Apart from connecting to PC (System PC with WEB Server) and DVR (Digital Video Recorder) at the rear-end, the invention is also designed with several WEB cameras at the front and an individual connecting Host. A Modem is designed in the telephone wire between the PC and Host for transmission of video-signal from each Host and passing through PSTN to return to PC for live surveillance recorded by a DVR. Hence, the present invention provides a very reliable tool for alarming the police and increasing live surveillance and joint systems can also be formed to increase safety and surveillance of high-residential areas, office buildings and other important locations.
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