System) location through satellites to BMS(Bus Management System). By using the GPS location, data on the location, driving speed, arrivals at bus stops are collected and transferred to the TOPIS Center through wireless communications network. The TOPIS Center processes the collected data and provides real-time bus operations information.
The data collected through BMS is then transferred to the
Network Interface Device
NIC
(Network Interface Card)
Most personal computers today have this card built into the motherboard.
It can be linked with a telephone wire, coaxial cable, or radio signal,in the case of cell phone and wireless-local area networks (Wi-Fi networks)
NOS
(Network Operating System)
software : Microsoft Windows Server, Linux, Novell Net Ware
Conn
System delivers traffic information processed by analyzing and processing traffic information system through all kinds of wire and wireless delivery media.
Traffic information is broadcast using wire and wireless telephone network, wire and wireless Internet, and other wireless data networks. Traffic Information System has to accept these characteristics of transmitting media, so traffic info
이내라면 인식할 수 있다.(손 등, 2009) 손병희, 장종찬(2009), ‘유비쿼터스 개론 개념과 기술’, ITC, 88-89
USN USN은 대한민국에서만 사용되는 용어이며, 영미권 등 외국에서는 Sensor network나 WSN(Wireless Sensor Network)이라는 용어를 더 많이 사용한다.
은 센서 노드와 싱크 노드, 사용자 노드로 구성되어 있다.(
Wireless Broad- band System)이 등장하고 있다. 현재 HIPERLAN(High Perfor- mance Radio LAN), I「 802.11 등의 컴퓨터간 통신을지원하는 WLAN(Wireless Local Area Networks)과 B-ISDN(Broad-band-Integrated Services Digital Network) 가입자들이 상당한 속도로 움직이면 서 통신서비스를 받을 수 있도록 지원하는 것을 목표로 하는 셀룰러 시스템인