If the OP uses IR illumination a freq of 9.4micros is at a peak from the human body. A problem could be caused by so much back reflection from the glass window that the shop inside could be swamped by IR. I would suggest a simple web camera using some basic motion detection software in a PC.
Many people donât know the difference between cardiac arrest and a heart attack or fainting spell. A person in cardiac arrest doesnât breathe, doesnât have a pulse, and canât respond to you. Someone having a heart attack usually is conscious and breathing, has a pulse, and can answer your questions. Respond. Hereâs what you should do if you witness someone go into cardiac arrest: Call 911 right away, or have someone else do it.
HealthDay Reporter. MONDAY, Dec. 21, 2015 (HealthDay News) -- Sudden cardiac arrest may not be as sudden as doctors have thought, researchers report. Roughly half of cardiac arrest patients experience telltale warning signs that their heart is in danger of stopping in the month preceding their attack, new study findings suggest.