Detection of adulteration of inversion and removal based on accelerometers and resource switching beat

摘要

Detection of adulteration of inversion and removal based on accelerometers and resource switching of beat. Disclosed are apparatus and methods for the detection of adulteration of inversion, adulteration of removal and beats using a sensor of 3-axis accelerometer in an environment of utility meter.Aduterau00e7u00e3o of inversion is detected to turn on if the value of the acceleration along the axis Y is greater than or equal to a threshold value is small. Removal of tampering is detected if the change of average acceleration of both y and Z is greater than or equal to the threshold of removal. A beat is detected if the change of average acceleration along the axis X is greater than or equal to the threshold of the beat.The values of acerau00e7u00e3o inciciais are defined to call. Detection of aduterau00e7u00e3o removal and detection of beat are distinguished by a moving average filter. Detection of the beat use time constraints to avoid detection of false hits.