| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an intra-vehicle biological information detector capable of detecting biological information with high detection accuracy and without any restraints. <P>SOLUTION: In a step 100, pressure sensors are classified on the basis of signals from respective sensor element parts 11. In a step 110, a FIR filter for eliminating the sensor output of (A) and (B) pressure sensors is constructed. In a step 120, the sensor output of a (C) pressure sensor is filtered by using the FIR filter. In a step 130, frequency analysis is performed by FFT. In a step 140, a reference sensor is determined from the power spectrum of the plurality of (C) pressure sensors. In a step 150, a phase difference is calculated. In a step 160, the other (C) pressure sensors other than the reference sensor are classified by using the phase difference. In a step 170, the phase of the sensor signals of the other (C) pressure sensor of a large phase difference is inverted. In a step 180, the sensor output of the other (C) pressure sensor is added to the sensor output of the reference sensor. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
