| 摘要 |
PURPOSE:To easily and speedily know the direction of movement from each of plural determined point to a next expected point by displaying plural azimuths which are stored previously and markers corresponding to the azimuths immediately through switch operation in order. CONSTITUTION:A key input part 12 outputs operation signals of respective keys of switches to a control part 10. The control part 10 controls the whole system according to a program stored in a ROM 11. Further, the control part 10 outputs an output signal (a) when signal inputted from the input part 12 is a signal indicating the measurement, display, etc., of an azimuth, and actuates an azimuth sensor 13 and an azimuth detecting circuit 14 to perform a time clocking process according to the signal outputted by a frequency division timing part 19. Further, the sensor 13 measures an azimuth and the circuit 14 detects a vector indicating the North Magnetic Pole and outputs azimuth data to the control part 10. Then a decoder driver part 16 decodes the combina tion of the signals inputted from the control part 10 and outputs a display drive signal to a display part 17. |
