{TAIL ~ The threshold limits} are relative values used to represent the standard deviation of {HEAD ~ the sensor data} 
{ TAIL ~ The threshold limits } are relative values used to represent the standard deviation of { HEAD ~ the sensor data }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD