| 摘要 |
PURPOSE: A numerical map renewing system is provided to record accurate 3D location information to a numerical map. CONSTITUTION: A numerical map renewing system comprises the following steps: a GPS receiver(100) collects GPS location information from GPS artificial satellite. A sensor device(200) is installed on the surface in a vertical upward direction from the reference point of underground facility. A reference point detecting device(300) is equipped in a navigation device of a vehicle(A), and interlocks with the GPS receiver and the sensor device by wired/wireless communication. The reference point detecting device receives and recognizes the absolute value of the reference point from the sensor device, sends the location information of the absolute value of the reference point, and indicates the location information of the absolute value on the screen. The reference point detecting device collects the GPS location information of the vehicle from the GPS receiver, and indicates it on the screen of the navigation device. GPR exploration equipment(400) is equipped on the surface of the vehicle to be placed in a vertical downward direction of the GPS receiver. A numerical map server(500) is interlocked with a GPS exploring equipment, and constructs a numerical map database having the recorded 3D location information of the installed underground facility. [Reference numerals] (100) GPS receiver; (200) Sensor device; (300) Reference point detecting device; (400) GPR exploration equipment; (500) Numerical map server; (A) Vehicle; (AA) Navigation device; (BB) Displaying absolute value and GPS location information; (CC) Sending the location information; (DD) Requesting the location information; (EE) Operation command; (FF) Requesting geographic intelligence; (GG) Recognition; (HH) Sending 3D location information and spatial information
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