| 摘要 |
PURPOSE:To select automatically a highly accurate position value and to display the selected value by comparing the position of a position measuring signal with a stored using area value and deciding the order of accuracy to select the position value. CONSTITUTION:Positional outputs sent from A-D navigation method position measuring means 1-4 through a selecting means 5 are stored in a register of a region deciding means 6. The means 6 reads out the using region values of the corresponding navigation methods and compares the read-out values with the contents stored in the register to decide the order of accuracy on the basis of the compared results. The means 5 selects the positions obtained by the means 1-4 automatically in accordance with the decided order and displayed the measured position on a display means 8 highly accurately. |
