Method And Device For Evaluating A Signal

A method for evaluating a signal, the signal is provided from a signal source via a signal conditioning unit to a microcontroller for signal evaluation, the method includes:

• detecting the signal from the signal source and transmitting the signal to the signal conditioning unit having an anti-aliasing filter;
• filtering the signal by the anti-aliasing filter, which is set on the basis of the signal to be detected, and providing the filtered signal to the microcontroller;
• and
• processing the filtered signal in the microcontroller, the filtered signal is processed by:
• digitizing the filtered signal by an analog-to-digital converter, as a result of which discrete values are generated;
• comparing the discrete values that are generated with a predefined threshold value or range, wherein the comparison is carried out by a configurable digital comparator;
• transmitting the result of the comparison to a timer system;
• storing the individual discrete values in a predefined memory area if the individual discrete values are in each case greater than the predefined threshold value or the predefined range or fulfill a comparison criterion, wherein the storage is initiated by the timer system;
• and
• evaluating the discrete values of the signal which are stored in the predefined memory area.