发明名称 |
Machine positioning system utilizing position error checking |
摘要 |
A system and method for estimating position of a machine is disclosed. The method may include receiving, from a perception sensor, scene data describing an environment in a vicinity of the machine and estimating a first position of the machine based on the scene data. The method may include determining whether a first signal indicative of a location of the machine is received by the machine and estimating a second position of the machine when it is determined that the first signal is received. The method may include comparing the second position with the first position and estimating a third position of the machine using at least one of the first position and the second position. |
申请公布号 |
US9234758(B2) |
申请公布日期 |
2016.01.12 |
申请号 |
US201213721958 |
申请日期 |
2012.12.20 |
申请人 |
Caterpillar Inc. |
发明人 |
Friend Paul Russell;Chen Qi;Willis Frank Arthur |
分类号 |
G01C21/20;G01C21/16;G01B11/00;G01S17/02;G01S17/89;E02F9/26 |
主分类号 |
G01C21/20 |
代理机构 |
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP |
代理人 |
Finnegan, Henderson, Farabow, Garrett & Dunner, LLP |
主权项 |
1. A method of estimating position of a machine, comprising:
receiving, from a perception sensor, scene data describing an environment in a vicinity of the machine; estimating, by a controller of the machine, a first position of the machine based on the received scene data and a map of the environment of the machine; determining, by the controller of the machine, whether a global positioning system (GPS) signal indicative of a location of the machine is received by the machine; estimating, by the controller of the machine, a second position of the machine using the GPS signal when it is determined that the GPS signal is received; comparing, by the controller of the machine, the second position and the first position; and estimating, by the controller of the machine, a third position of the machine using at least one of the first position and the second position, wherein: estimating the third position is performed based on a result of the comparison between the second position and the first position. |
地址 |
Peoria IL US |