| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna which allows persons who are passing by the work place of a work vehicle to easily realize that the work vehicle is autonomously travelling and to recognize the contents of the work which the work vehicle is doing and the travelling state of the work vehicle.SOLUTION: An antenna unit 50 for a satellite navigation system is attached to an autonomously travelling work vehicle 1 which can autonomously travel and perform work along a set travel route using a satellite positioning system. In the antenna unit, the followings are integrally stored in a case 54: a mobile GPS antenna 34; a plurality of lamps 52, 52...arranged around the GPS antenna 34; a speaker 51; a circuit board 53; and an inertial measurement device 31.SELECTED DRAWING: Figure 3 |
