Developing of Self-learning Car Navigation System

自学习式汽车导航系统的开发

• 批准号: 09650586
• 负责人: INOUYE Hiroshi
• 金额: $ 2.11万
• 依托单位: OKAYAMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650586/
• 关键词: car navigation system; global positioning system; traffic control; traffic simulation; database

1. The GPS system that used the GPS antenna (ETAK ET-GPS1), map & GPS software (MapFan II), personal computer (NEC PC-9821Nr166) was composed.2. The method how to detect the traveling link on the road network and calculate link travel times from the GPS traveling locus data was formed.3. The system that preserves the travel time data as a knowledge database to the disk of the computer was formed.4. The system that searches the optimal route between origin and destination by using the travel time database and displays it on the map was formed.5. By driving the test vehicle that installed the GPS system on the major line road network of Okayama city area, the travel time database was formed actually.6. The accuracy of the optimal route, that is presented by Navigation System on the basis of the travel time database was examined by using computer simulation.7. Although the result differs by traffic condition, the accuracy of the optimal route search by this Navigation System is about 42% as the whole average and about 75% as the maximum.8. The travel time cut by this Navigation System is about 9% as the whole average and about 20% as the maximum.9. Through the study it was made clear that the self-learning car navigation system is effective and it is possible technically.

1.利用GPS天线(ETAK ET-GPS1)、MAP和GPS软件(MapFan II)、PC机(NEC PC-9821Nr166)组成GPS系统。给出了如何从GPS行驶轨迹数据中检测路网上的行驶路段并计算路段行程时间的方法。形成了将行程时间数据作为知识库保存到计算机磁盘上的系统。形成了利用行程时间数据库搜索始发地与目的地之间的最优路径并将其显示在地图上的系统。通过在冈山市主干道路网上驾驶安装了GPS系统的试验车，实际形成了行程时间数据库。通过计算机仿真验证了导航系统基于行程时间数据库给出的最优路径的准确性。虽然结果因交通条件不同而不同，但该导航系统对最优路径搜索的准确率总体平均约为42%，最大准确率约为75%。该导航系统平均缩短行程时间约9%，最大缩短行程时间约20%。通过研究表明，自学习车载导航系统是有效的，在技术上是可行的。

项目成果

井上博司, 他: "確率利用者均衡を用いた道路網の時間信頼性評価" 土木計画学研究・講演集. 20(2). 747-750 (1997)

Hiroshi Inoue 等人：“使用随机用户平衡的道路网络的时间可靠性评估”土木工程规划研究和讲座 20(2) 747-750 (1997)。

Hiroshi Inouye: "Development of Self-Learning Car Navigation System in Urban Area"Proceedings of the 6th International Conference in Computers in Urban Planning and Urban Management. No.6. I1 1-12 (1999)

Hiroshi Inouye：“城市地区自学习汽车导航系统的开发”第六届城市规划和城市管理计算机国际会议论文集。

宇野巧、井上博司、尾関良純: "GPSを用いた知的ナビゲーションシステムの開発" 平成10年度土木学会中国支部研究発表会発表概要集. 487-488 (1999)

Takumi Uno、Hiroshi Inoue、Yoshizumi Ozeki：“使用 GPS 的智能导航系统的开发”1998 年日本土木工程师学会中国分会研究报告摘要集 487-488（1999）。