A Design of U-System for Group Management Using Wireless Sensor Network and Android Device
This paper presents a group management system using Wireless Sensor Network (WSN) and Smart phone devices. The proposed system was comprised of personal device based on sensor node of WSN, Smart phone device which is used by group manager and web server. The sensor node called as personal device which is held by group members sends a data packet every 2 seconds to the manager device. The manager can check their group member's distance from him within a 30-meter radius and battery residual quantity on the manager device. Manager device sends its latitude and longitude data from Global Positioning System (GPS) and information of personal devices to web server.