In the modern society, under the concept where people place more importance on personal and property safety, installing a security system in the residence has become a way to solve the problem of assuring the property and personal safety in the house. Each kind of equipment, like sensor and surveillance camera, that the security system uses, can transfer unusual messages and frames to the security host through an exclusive transmission course, the security host then switches on the alarm or saves the image frame in order to achieve the goal of pre-alarm and collecting the evidence. This paper combines the techniques of digital surveillance system and power line communication, using the vast advantages of the power line communication, to establish the communication network structure of the security system of this paper. The real time image that the camera catches,after being compressed, is then transferred with the format of continuous JPEG images to any designated security host IP on the Internet, and then is combined as continuous image files. Users can use the browser to login into the web server installed on the security host, to supervise real time images in the house and search the images of the stored records, by using remote web page browsing. The security system can also send messages to the mobile phones, to inform the user or the security personnel in case of an alarm. This paper wishes to use the power line communication techniques and remote real time surveillance and alarm messages, to increase the safety and the functionality of the home security system.
