| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a biological information detecting device capable of detecting a breathing frequency, a heart frequency, a skin temperature or others without installing it in a person to be detected, without using a microwave doppler module at low cost. <P>SOLUTION: The biological information detecting device 10 has a receiving antenna 4 receiving thermal noise of a millimeter-wave zone radiated from the person 2 to be detected, a receiving amplifying section 12 amplifying received signals, a detecting section 14 detecting the received signals, and a detecting amplifying section 16 amplifying the detected signals. The detected signals after the amplification is subjected to Fourier transformation in an FFT section 20 to be separated into a plurality of spectra on a frequency axis, and each of the separated spectra is input into a skin temperature detecting section 22, a breathing frequency detecting section 24, and a heart frequency detecting section 26. Further, in each of the sections, the skin temperature is detected from the amplitude of the spectra corresponding to the DC components of the detected signals, the frequency of the spectrum with the largest amplitude in the spectra in the frequency zone corresponding to the breathing frequency and the heart frequency is detected as the breathing frequency and the heart frequency. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
