Wireless Internet Based Route Guidance System
| Autor: | Weng Bin Ueng, 翁文彬 |
|---|---|
| Rok vydání: | 2000 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 88 Conventional In-vehicle Route Guidance Systems often utilize closed and centralized architectures by placing road database management and optimal route calculation tasks in the computer on-board of the vehicle. Such approach usually has complicate hardware requirement. In addition, the road database in the vehicle cannot be dated easily and often lack real-time information. In this thesis we propose a new route guidance system based on wireless communication and Internet technologies. The system can be divided into three subsystems: Optimal Route Provider locates on a Internet-based server; Message Server transmit messages between the wireless data network and the Internet, and the on-board simplified Car PC that accepts user input and displays route guidance information received from remote server. By sharing route guidance tasks between these subsystems, optimal routes with real-time traffic considerations can be generated by a remote host, and in-vehicle Car PC have very simple hardware requirement due to the removal of the route calculation and database management tasks. For the system implementation, GSM/SMS is used as the wireless communication method, and the TCP/IP based Message Server and Optimal Route Provider is placed on the NTUST Computer Network. In-vehicle Route Guidance function such as optimal route and current position display, road name display, maneuver instruction, and off-route warning, are provided in a simple Dos program running in the on-board notebook PC. Actual road tests demonstrate very satisfactory results and show the huge potential of the proposed system. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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