1. A method to manage signal data supplied by at least one sensor, comprising: acquiring an input datum from the signal data; identifying a presence or an absence of at least one repetition condition of the input datum; if the presence of the at least one repetition condition of the input datum is identified: encoding in a compressed way the input datum to generate a compressed datum; and saving the compressed datum in a memory; and if the absence of the at least one repetition condition of the input datum is identified: saving the input datum in the memory.