| 20110175733 | SILENT ANTI-THEFT PROTECTION SYSTEM FOR GOODS PRESENTED TO THE PUBLIC - An anti-theft protection system for goods presented to the public includes a set of sensors connected to the goods and linked to a control unit capable of determining states, the states being at least a state of presence of the goods and a state of theft attempt and/or actual theft, the shift from a state of presence of the goods to a state of theft attempt and/or actual theft resulting, in the absence of inhibition of the detection for the sensor, in the control unit being set into alarm, the control unit including or being connected to a sonorous alarm generating elements. The control unit further includes wireless transmission-reception elements and the system further includes at least one portable wireless transmitter-receiver capable of communicating with the control unit, and elements adapted so that, upon setting-into-alarm, the transmission-reception means of the control unit provide for searching for the functional existence of at least one portable transmitter-receiver, during a determined maximum search time thanks to the sending of a search signal. In the absence of response at the end of the determined maximum search time, the control unit activates the sonorous alarm generating elements. | 07-21-2011 |
