The present invention describes an electronic personal protective device (2) comprising a rechargeable battery (3), a transceiver (4) configured to send and receive wireless signals (FR1, FR2) with predetermined power and sensitivity as a function of the action radius (r) which is to be monitored, a memory unit (5) containing a unique recognition code (ID1, ID2), an actuator (6) configured to warn the person wearing said electronic device (2), a processing unit (20) configured to: generate and send to said transceiver (4) a frame (FR1, FR2) at programmable time intervals (Tadv), receive and process frames (FR1, FR2) sent from other electronic personal protective devices (2) placed within said action radius (r), generate an alarm signal (S_AL), if a second electronic device (2) is located within said action radius (r), send said alarm signal (S_AL) to said actuator (6). The invention further describes a corresponding method and computer program.