| 摘要 |
<p>PROBLEM TO BE SOLVED: To highly precisely measure the three-dimensional position of each moving body, manage the measured three-dimensional position and perform bidirectional communication between a reference station and each moving body. SOLUTION: A reference station 10 and moving stations 30 mounted on a plurality of carts are provided, GPS antenna 17a is provided on reference station 10 and GPS antennas 35a are provided on each moving station 30 respectively. When the three-dimensional position information of the reference station and communication information from the reference station 10 are transmitted, these signals are synthesized to be transmitted. When the three-dimensional position of each cart and communication information from each moving station 30 are transmitted from each moving station to the reference station 10, these signals are synthesized to be transmitted.</p> |
