发明名称 |
Estimation of travel times using Bluetooth |
摘要 |
Methods for estimating travel time using at least two remote systems to record the timestamps associated with obtaining identifying information of a wireless Bluetooth enabled, or other WPAN technology, electronic device in a vehicle. A remote system in one embodiment is a Bluetooth enhanced traffic controller. Characteristics of Bluetooth technology, such as a unique address for each Bluetooth capable device are used to detect a vehicle with a Bluetooth device by at least a first and a second remote system. Vehicle identifying data including at least a time stamp is transmitted by the remote systems to a central system. The central system determines a travel time, or an estimated travel delay. Travel time related data is provided by the central system to a display, such as a variable or dynamic message sign. |
申请公布号 |
EP2320403(A2) |
申请公布日期 |
2011.05.11 |
申请号 |
EP20100189006 |
申请日期 |
2010.10.27 |
申请人 |
SIEMENS CORPORATION;SIEMENS INDUSTRY, INC. |
发明人 |
MILLER, DAVID DODD;NADEEM, TAMER M. |
分类号 |
G08G1/01 |
主分类号 |
G08G1/01 |
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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