| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pedometer capable of calculating precise total consumption calories by easily detecting the precise number of steps and determining an exercise state (walking, running, walking up the stairs, and walking down the stairs) only with a triaxial acceleration sensor. <P>SOLUTION: The pedometer comprises a triaxial acceleration sensor 20 and exercise state determination means 33. The triaxial acceleration sensor 20 measures acceleration generated accompanying walking of a person to be measured respectively for triaxial directions orthogonal to each other. The exercise state determination means 33 determines which of walking, running, walking up the stairs and walking down the stairs is an exercise state of the person to be measured, on the basis of an exercise state determination value for which the maximum value Az<SB POS="POST">max</SB>of the acceleration Az in the vertical direction measured by the triaxial acceleration sensor 20 while walking of one step is performed is averaged for two steps and divided by the time Δt required for the two steps, and an acceleration average value Ay<SB POS="POST">ave</SB>which is the average value for the two steps of the acceleration in an advancing direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
