| 摘要 |
PURPOSE:To accurately correct the initial set angle error of an azimuth sensor incorporated in the system by using movement azimuth data of a global position measurement system (GPS) at the time of traveling straightly to calculate the azimuth of the moving body. CONSTITUTION:The output side of an antenna 3 is connected to a receiver 4 and a travel distance sensor 1 and the azimuth sensor 2 are connected to a position detecting device 5 together with the output side of the receiver 4. The output side of the device 5 is connected to a data processor 61 including a comparing device 62 and a GPS data storage device 63, a self-supporting data storage device 64, a map data storage device 7, and a display device 8 are connected to the processor 61. Then the azimuth of the moving body is calculated by using the GPS movement azimuth data at the time of traveling straightly to accurately correct the initial set angle error of the sensor 2 incorporated in the system. |
