| 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 | US8781646(B2) | 申请公布日期 | 2014.07.15 |
| 申请号 | US201313950349 | 申请日期 | 2013.07.25 |
| 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 | G05D1/00 | 主分类号 | G05D1/00 |
| 代理机构 | Cantor Colburn LLP | 代理人 | Cantor Colburn LLP |
| 主权项 | 1. A method of detecting an abnormal driving condition, the method comprising: receiving, by a first vehicle, an RF signal transmitted from a second vehicle located in front of the first vehicle; 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 a frequency shift between the received RF signal and the RF signal transmitted from the second vehicle; and determining that the abnormal driving condition of the second vehicle exists responsive to determining that the frequency shift has reached a set threshold. | ||
| 地址 | Armonk NY US | ||