MOBILE STATION POSITION MANAGEMENT SYSTEM

摘要

PURPOSE:To orient the movement position of a mobile station accurately at all times even if the position measurement signal of a GPS satellite varies. CONSTITUTION:The mobile station is provided with a GPS antenna 1 and a GPS receiver 12 and a computer 14 orients its movement position with position measurement signals of GPS satellites 3A-3C and also sends the oriented movement position and orientation time to a base station 2 through a radio antenna 17. The computer 24 of the base station 2 orients its position through a GPS antenna 25 and a GPS receiver 26 with time and calculates the position error between its oriented position and its predetermined position. The calculated position error is stored in time series together with its calculation time and the position of the mobile station 1 is corrected based on the position error at the closest calculation time to the orientation time received from the mobile station 1.