| 发明名称 | Location-based positioning method and system | ||
| 摘要 | Provided are a location-based positioning method and system. The method comprises the following steps. A positioning request is received from a terminal and a location and a moving trajectory of the terminal are determined. A predicted trajectory is calculated according to the moving trajectory and road network information. A positioning request is received from the terminal at a position correction point, and a moving direction and a moving speed of the terminal is received in accordance with a location of the position correction point and the predicted trajectory. A next location of the terminal in the determined moving direction is determined based on the predicted trajectory. | ||
| 申请公布号 | US9107181(B2) | 申请公布日期 | 2015.08.11 |
| 申请号 | US201214358236 | 申请日期 | 2012.11.16 |
| 申请人 | BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD. | 发明人 | Yin Lei |
| 分类号 | H04W24/00;H04H20/74;H04M3/42;H04B7/185;H04W64/00;G01S5/02;H04W4/02;G01C21/30 | 主分类号 | H04W24/00 |
| 代理机构 | Hodgson Russ LLP | 代理人 | Hodgson Russ LLP |
| 主权项 | 1. A location-based positioning method, comprising: S1. receiving a positioning request from a terminal, and determining a location and a moving trajectory of the terminal; S2. calculating a predicted trajectory according to the moving trajectory and road network information; S3. receiving a positioning request from the terminal at a position correction point, and determining a moving direction and a moving speed of the terminal according to a location of the position correction point and the predicted trajectory; and S4. determining, according to the moving direction and the moving speed of the terminal, a next location of the terminal in the determined moving direction based on the predicted trajectory. | ||
| 地址 | Beijing CN | ||