| 摘要 |
<p>PROBLEM TO BE SOLVED: To execute information control related to an electric cable common duct, by identifying it by a mobile computer provided with a GPS device. SOLUTION: Electric cable common duct information such as drawing out information related to the electric cable common duct, construction work information, contained device information or the like is memorized in a database 4. A location where the electric cable common duct is installed is identified by a GPS function and electronic map information. The location of the electric cable common duct is identified on the electronic map, and the electric cable common duct information is displayed on a computer 10 by drawing out from the database 4, and the information is used for construction works on site or the like.</p> |
