P2P-Based Home Monitoring System Architecture Using a Vacuum Robot with an IP Camera

We propose Peer-to-Peer-based (P2P-based) home monitoring system architecture to exploit a vacuum robot with an IP camera, a movable IP camera, without requiring a number of cameras for the whole monitoring at home. The key implementation issues for the proposed home monitoring system are (1) the easy configuration of a vacuum robot to connect to Wi-Fi networks, (2) the session management between a vacuum robot and a home monitoring server, and (3) the support of the Network Address Translator (NAT) traversal between a vacuum robot and a user terminal. In order to solve these issues, we use and extend the Wi-Fi Protected Setup (WPS), the Session Initiation Protocol (SIP), and the UDP hole punching. For easy configuration of a vacuum robot, we also propose the GENERATE method which is an extension to the SIP that allows for the generation of a SIP URI. In order to verify the feasibility of the proposed system, we have implemented the prototype and conducted the performance test using the authoritative call generator.