| 摘要 |
PURPOSE: A precision digital map making system is provided to collect correct images. CONSTITUTION: A precision digital map making system has a panel type base(FA1), a panel type supersonic wave generator installing body(FA2), and multiple supersonic wave generators(FA3). The panel type base is installed on the side of the upper part of a filming device body. One end of the supersonic wave generator installing body is installed on the base and the other end thereof is protruded. Multiple supersonic wave generators are installed in the supersonic wave generator installing body. |
