Vital measuring device and vital measuring method

A vital measuring device comprising:

• a single infrared sensor including
• a light receiver to receive infrared light emitted from a target object and capture an infrared image,
• a biological recognizer to recognize a living body from the infrared image captured by the light receiver, and
• an infrared vital estimator to estimate a body temperature and a two-dimensional orientation of the living body recognized by the biological recognizer;
• a single radar sensor temporally synchronized with the infrared sensor and disposed in proximity to the infrared sensor in such a manner as to sense the living body,
• the single radar sensor including
• a signal acquirer to acquire a reception signal of a reflected wave from an antenna for receiving the reflected wave from the target object,
• a signal separator to separate the reception signal acquired by the signal acquirer into a moving object signal and a stationary object signal,
• a moving object estimator to detect a moving object by estimating a range, a velocity, and a two-dimensional orientation of the moving object from the moving object signal, and
• a radar vital estimator to estimate a position, a respiration rate, and a heart rate of the living body from the stationary object signal on a basis of a detection result of the moving object detected by the moving object estimator;
• and
• a final vital outputter to acquire the position, the respiration rate, and the heart rate of the living body estimated by the radar vital estimator, acquire the body temperature of the living body estimated by the infrared vital estimator, to output the acquired position, body temperature, respiration rate, and heart rate of the living body, wherein
• the radar vital estimator includes a digital beam former to perform digital beam forming of the stationary object signal in the estimated two-dimensional orientation when movement of the moving object detected by the moving object estimator of the radar sensor is not detected in the two-dimensional orientation estimated by the infrared vital estimator.