POSITION MANAGEMENT DEVICE, METHOD FOR PRODUCING DISPLAY DATA, POSITION DISPLAY DEVICE AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a position management device which receives position information to be transmitted from a plurality of two kinds of mobile transmission devices to display a position of a transmission source on a map, a method for producing display data, a position display device and a program.

SOLUTION: The position display device acquires the shortest route for going from the transmission source to each terminal whenever the position information is received from each vehicle. The position display device calculates time which the transmission source requires for transfer on each shortest route, and calculates each determination time by subtracting the calculated time from the transmission time of the transmission source. The position display device associates a terminal which transmits the position information at the transmission time matched to each determination time with the transmission source. The position display device performs similar processing to associate a vehicle which transmits the position information at the transmission time approximately matched to the determination time with the transmission source whenever the position information is received from each terminal. The position display device displays the vehicle and the terminal associated with each other approximately on the same position on the map using a duplication identifier.

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