Portable non-contact vital signal detection device, driver monitoring device, visitor screening system, and home healthcare system

A portable non-contact vital signal detection device comprising:

• an antenna unit provided with a planar antenna of a MIMO radar;
• a display unit including a display panel;
• and
• a correction mechanism that is configured to suppress an influence of shake of the portable non-contact vital signal detection device on the vital signal of a subject detected during detection of the vital signal by a measurer holding the portable non-contact vital signal detection device with his/her hand,
• wherein the antenna unit is combined with the display unit or the display unit is combined with the antenna unit in a rotatable manner so that, from a state where the planar antenna and the display panel face in a same forward direction, the planar antenna is configured to be turned to be directed to a rearward direction opposite the forward direction,
• the portable non-contact vital signal detection device is configured to detect a vital signal in the forward direction or a vital signal in the rearward direction, and
• the correction mechanism is configured to suppress, when the measurer performs measurement by holding the portable non-contact vital signal detection device with his/her hand, shake of the portable non-contact vital signal detection device that is superimposed on a signal reflected and returning from the subject using a signal reflected and returning from a fixed object which is near the subject and which is fixed in position.