Object monitoring system using radiofrequency identification tags having tag-specific identifiers

摘要

A system (2) for monitoring a plurality of objects (6) in a predefined detection area (8), includes:
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),an element (16) for processing information transmitted by the or each radiofrequency reader (10), the information including an identifier specific to each tag (4) to be monitored in the predefined detection area (8), andan alarm element (18) connected to the processing element,the monitoring system being 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 casing (14).

主权项

1. A monitoring system for monitoring a plurality of objects in a predefined detection area, comprising:
a plurality of radiofrequency identification tags that transmit radiofrequency signals, each tag being suitable for being attached onto an object, a casing that is impervious to the radiofrequency signals transmitted by any of the radiofrequency identification tags that are located inside the casing, at least one radiofrequency reader for reading the radiofrequency identification tags located outside the casing, the or each radiofrequency reader being connected to an antenna, and all of the radiofrequency readers defining the predefined detection area, the or each radiofrequency reader being located outside the casing, the casing being located within the predefined detection area and the predefined detection area extending outside the casing, a processing device for processing information transmitted by the or each radiofrequency reader, the information comprising an identifier specific to each tag to be monitored in the predefined detection area, and an alarm device connected to the processing device.