Patent ID: 6748340
Filing Date: 2004-06-08
Classification: G01C

Abstract:
A cable position information management system, comprising a portable terminal, and a server which performs data communication with the portable terminal,wherein the portable terminal comprising: a position information acquisition section which acquires position information including latitude and longitude information for a measurement point where a cable position is measured by communicating with GPS satellites; a cable position calculation section which at the measurement point receives electromagnetic waves emitted by a metal wire either integrated with or attached to a cable targeted for measurement, and based on intensity information of the electromagnetic waves, calculates a position of a cable with the measurement point as a reference point; a transmission section which links the position information for the measurement point and the position of the cable measured with the measurement point as a reference point, and transmits the position information and the position of the cable to the server as cable position information; and a display section which displays the cable position information and information received from the server, and wherein the server comprising: a receiving section which receives the cable position information sent from the portable terminal; a storage section which stores geographic information; a writing section which writes the received cable position information and the stored geographic information to the storage section in a linked manner; and a transmission section which receives a data request from the portable terminal, and retrieves the cable position information and the geographic information corresponding with the cable position information from the storage section and transmits the retrieved information.