In one embodiment, an anti-wafer structure includes a silicon on insulator layer and a plurality of probe dice formed on the SOI layer. The use of asynchronous, single-phase current and voltage angle sensors with rolling data logs, along with a common clock to synchronize the signals to common time scale whenever a fault event is detected, avoids the need for simultaneous three-phase current measurement. Tracking outputs from the optical flow, decision forest andor color tracking modules are synthesized to provide a final tracking output. An elastically compliant buffer delimits the housing seat at least in the aforesaid direction of relative coupling in order to define a damped arrest of the engagement portion of the lock striker.