Silent theft protection system for goods displayed to the public

摘要

Theft protection system for merchandise on display to the public, the system including a central control, a set of sensors (4) in relation to the goods (5) exposed to the public, the sensors to a control unit (1) being connected, may determine the central control states which relate to the goods, at least such states, a presence of merchandise and a state of attempted burglary and / or theft, involving the passage of state of presence of the merchandise a state of attempted burglary and / or theft, in the absence of inhibition of the detection by said sensor, the setting alarm central control, said central control or being related to a means of sound generation alarm (7), further including the central control means transmit-receive wireless (8) and the system further includes at least one portable wireless transceiver (2, 2 ') that can comunic ar (11) with the means of transmission-reception wireless (8) of the control unit, the transmission means and reception of the central control enable searching functional existence of at least one portable transmitter-receiver through the sending of a search signal, recognized the functional existence of a portable transceiver for receipt by the transmission means and reception of the central control of the response sent by said portable transceiver after it has received said paging signal, and characterized in that the system further includes means for, during start alarm said central control means of audible alarm generation is not immediately and means emisiónrecepción central control active enable searching functional existence of at least one portable transceiver for a certain maximum search time, and that in the absence of response from a transmitter-receiver tátil over time of certain maximum search, the control unit activates the means of audible alarm generation in order to produce an audible alarm, and that the system further includes means to trigger the control unit a timing prealarm a predetermined time period when said central control has been put into alarm, implying the absence of stop timing prealarm by a system user activation means of audible alarm generation at the end of said timing prealarm order to an audible alarm, being the default timer duration prealarm such that activation of the means of audible alarm generation timing at the end of said pre-alarm can only take place at the end of time determined maximum search.