| 摘要 |
<P>PROBLEM TO BE SOLVED: To properly detect abnormal body movement, abnormal breathing, etc. which cannot be detected by a body temperature, by a safety monitoring device. <P>SOLUTION: A safety monitoring device includes: a microwave Doppler sensor 10 which emits a microwave and detects a Doppler-shifted reflected wave from a subject 200 irradiated with the microwave; a body movement detection unit 20 which detects body movement of the subject 200 on the basis of the detected reflected wave; a safety pattern determination unit 60 which specifies a condition of the subject 200 in accordance with a body movement frequency Td obtained on the basis of the detected body movement and outputs safety pattern data corresponding to the specified condition; and a distance determination unit 70 which specifies a distance range between the microwave Doppler sensor 10 and the subject 200. The safety pattern determination unit 60 varies thresholds S1 and S2 which are set for the body movement frequency Td in order to specify a condition, in accordance with the specified distance range. <P>COPYRIGHT: (C)2013,JPO&INPIT |
