According to the movement of the different targets such as pet, the position deduction method for the microblogging device that can speculate installation site and the equipment using this equipment are started. Position estimating device is the sensor that 3 axle sensor information are carried out from the dynamic of pet, under the 3 axle sensor signals that sensor portion exports, from the angle speed signal and speed signal of x-axis, y-axis and Z axis, after extracting acceleration signal, and each axis feature being arranged between timetable. Feature extraction symbol is calculated, the characteristic value exported from feature extraction unit is handled by sorting algorithm, the operating member of discrimination movement. According to the speed signal of speed signal and upper each axis that the different movement phases saves, than the directional velocity disk of heavy force, acceleration of gravity direction, the angle operational part that angle calculation with the space of a whole page is got up, and the angle of the space of a whole page of angle operational part production is on the acceleration direction of gravity, on the direction of gravity accelerator, the decoration position including gas-bearing formation equipment can be calculated.
