DEVICE FOR ACCESSING AN UNDERGROUND OR SURFACE CIVIL ENGINEERING INFRASTRUCTURE, COMPRISING AN INTRUSION DETECTION DEVICE

摘要

The invention relates to a device for accessing an underground or surface civil engineering infrastructure, comprising a hatch (1) for access to a chamber. It comprises at least one sensor capable of measuring a variable representative of a mechanical or thermal action on the hatch (1) and of delivering a signal corresponding to the measured variable, and an analysis module configured for analysing the signal so as to detect therein, on the basis of the change over time of the measured variable, information characteristic of an attempted intrusion into the chamber . If such information is detected, an attempted intrusion alert is generated. The access device comprises a communication module (3) capable of transmitting said attempted intrusion alert.