METHOD FOR CALIBRATING A SLEEP DURATION OF AN APPROACH DETECTION SENSOR AND ASSOCIATED SENSOR

摘要

The subject of the present invention is a method for calibrating a sleep time (DV ') of an approach detection sensor, the so-called sensor alternating measurement phases (PM), whose evaluation duration (DE ) is measured by a first oscillator (O1) of stable frequency and standby phases (Pv), whose predetermined idle time (Dv) is controlled by a second oscillator (O2), the frequency of which varies according to external parameters. The invention proposes to realize immediately after the measurement phase (PM), a second measurement phase (PM2) during which a second evaluation period (DE2) is measured by the second oscillator (O2) and to calibrate the duration of standby (DV ') using the ratio between the number of oscillations (N1') generated during the evaluation period (DE) by the first oscillator (01) and the number of oscillations (N2 ') generated during the second evaluation duration (DE2) by the second oscillator (O2).