Current position information notification system, portable terminal device, information center device and current position information notification method

摘要

PROBLEM TO BE SOLVED: To provide a current location information notification system with which the power consumption of the terminal of a traveling object can be reduced sharply.;SOLUTION: In a current location information notification system, a portable terminal equipment 20, carried by an owner specifies the current location of the owner by a location specification part 22, and calculates the moving speed of the owner by a moving speed calculation part 23. When it is determined that the owner is inside a vehicle, the portable terminal equipment 20 calculates the location specification cycle by the location specification part 22, on the basis of the moving speed of the owner calculated by the moving speed calculation part 23 and prescribed deceleration, and transmits the current location information of the owner through a communication part 21 to an in-vehicle device 30, on the basis of the cycle calculated.;COPYRIGHT: (C)2010,JPO&INPIT