A. Name: limiting filtering method (also known as program judgment filtering method) B. Method: Determine the maximum allowable deviation value from the twice sample (set it as A), when detect a new value, judge: if the deviation between the this value and last time value <=A, this time value is effect. If the deviation between this time and last time > A, this time value is invalid, give up this value, and use the last time value instead of this time value. […]