发明名称 |
DETECTING AN ABNORMAL DRIVING CONDITION |
摘要 |
A method of detecting an abnormal driving includes receiving a RF signal transmitted from a vehicle in front; performing digital down conversion on the RF signal to obtain a baseband digital signal; performing frequency shift detection on the baseband digital signal to obtain frequency shift between the received RF signal and the RF signal transmitted from the vehicle in front; and determining that the abnormal driving condition in front exists response to determining that the frequency shift has reached a set threshold. |
申请公布号 |
US2014039718(A1) |
申请公布日期 |
2014.02.06 |
申请号 |
US201313969021 |
申请日期 |
2013.08.16 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CHENG XIN HAO;HU GUOQIANG;MEI LI JUN;YANG BO;YUAN YU |
分类号 |
G08G1/16 |
主分类号 |
G08G1/16 |
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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