| 摘要 |
PROBLEM TO BE SOLVED: To provide an information terminal capable of calculating and keeping a high-degree positional precision, even under such the condition that keeping the positional precision is normally difficult. SOLUTION: The information terminal which has an acquisition means for acquiring positional information and reliability information, comprises an other terminal information acquiring means for communicating with another information terminal which has an acquisition means for acquiring positional information and reliability information, and acquiring or swapping the positional information and the reliability information of the another information terminal; and a calculating means for calculating new positional information and new reliability information by using the positional information and the reliability information which are acquired by the other terminal information acquiring means, and the positional information and the reliability information which are acquired by the acquisition means. The calculated positional information and reliability information are updated at each timing of communicating with the another information terminal. COPYRIGHT: (C)2009,JPO&INPIT |
