| 摘要 |
PURPOSE:To improve the accuracy of reset in response to the movement of a moving body by receiving a signal transmitted always from the moving body near itself in the vicinity of a display device to reset the position information of the moving body displayed on the display device. CONSTITUTION:The position information of the moving body M is inputted at any time to a terminal 1, inputted to a signal processing section 2, where the information is processed and the result is inputted to a radio transmission section 3 and a weak radio wave oscillating section 4. An output f1 of the transmission section 3 and an output f2 from the oscillating section 4 are synthesized by a mixer 5 and irradiated from an antenna 6. The radio wave from the antenna 6 is received by an antenna 7 of the display device side and the radio waves, outputs f1, f2 incident from the moving body M are inputted to a branch section 8. The outputs f1, f2 from the branch section 8 are transmitted respectively to reception sections 9, 10, each output is processed by signal processing sections 11, 13 to reset the position information of the moving body M displayed on the display device 12 and the reset accuracy is improved by moving the moving body M. |
