| 摘要 |
PURPOSE:To make an operator judge whether or not the display of the position of a traveling body which is displayed at present is accurate one by satellite navigation by displaying that the measurement of position by the satellite navigation is utilized on a display means in such a case. CONSTITUTION:When reception is actually performed, a signal is transmitted from a satellite navigation reception part 8 to the display means 6 through a signal line 13 and displayed on the screen of the means 6. When the reception part 8 receives the signals from three or more satellites, a position measuring means 1 measures the position of the traveling body through a control means 2 by the satellite navigation based on the signals by inputting the initial position, etc., of the traveling body from an operation means 3, and the position of the traveling body by self-contained navigation is corrected based on the position of the traveling body by the satellite navigation to enhance positional accuracy. The position information of the traveling body is transmitted from the means 1 to the means 2, which reads out map information stored in a map information storage means 7 so as to display the position of the moving body. |
