发明名称 |
Mobile body information system |
摘要 |
A mobile body information system comprises a center system and a vehicle-mounted terminal device. The vehicle-mounted terminal device is configured to determine a density of communication areas of narrow area wireless base stations along a travel route of a vehicle based on a current position of the vehicle and installation data of the narrow area wireless base stations. When the density of communication areas is high, the vehicle-mounted terminal device is configured to recommend to a user a divided download format in which the information is intermittently distributed through a plurality of the narrow area wireless base stations while the vehicle is travelling. When the density of the communication areas is low, the vehicle-mounted terminal device is configured to recommend a batch download format in which the information is distributed through one of the narrow area wireless base stations while the vehicle remains in one communication area.
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申请公布号 |
US7228137(B2) |
申请公布日期 |
2007.06.05 |
申请号 |
US20030653955 |
申请日期 |
2003.09.04 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
CHINOMI SATOSHI;TAKAGI TORU;FUJITA SUSUMU;SUZUKI MASAYASU |
分类号 |
H04B7/26;H04W4/06;H04W8/24;H04W28/06;H04W28/18 |
主分类号 |
H04B7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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