DESCRIZIONE
The invention relates to a system (2) for monitoring a plurality of objects (6) in a predefined detection area (8), including: a plurality of radiofrequency identification tags (4), each tag (4) being suitable for being attached onto an object (6); at least one radiofrequency reader (10) for reading radiofrequency identification tags (4), the or each reader (10) being connected to an antenna (12), and all of the readers (10) defining the predefined detection area (8); a means (16) for processing information transmitted by the or each radiofrequency reader (10), the information comprising an identifier specific to each tag (4) to be monitored in the predefined detection area (8); and an alarm means (18) connected to the processing means. The monitoring system is characterized in that it includes a casing (14) that is impervious to the radiofrequency signals transmitted by the radiofrequency identification tags (4) located inside the box (14).