| 摘要 |
PROBLEM TO BE SOLVED: To store the characteristic information of a vehicle even during long-distance test driving while achieving miniaturization, weight reduction and low cost.SOLUTION: An information terminal 102 includes an acceleration sensor 152 for detecting acceleration information about the acceleration of the information terminal itself, a GPS sensor 154 for deriving absolute position information about the absolute position of the information terminal itself, a first storage part 162 for holding characteristic information including vehicle information, the acceleration information and the absolute position information measured within a predetermined period of time, a second storage part 164 for holding information independently of the first storage part, and a storage control unit 174 for transferring, when predetermined conditions for a vehicle are satisfied, the characteristic information of a relative specific period held in the first storage part and using the point of time of satisfying the predetermined conditions as a reference to the second storage part.SELECTED DRAWING: Figure 3 |
