| 摘要 |
<p>This safety system (1) includes a central unit (3) and one or more control peripherals (9), for detecting intrusion (5) and for signalling (7) the said intrusion. It is characterised in that the central unit (3) and one or more peripheral elements (5, 7, 9) include means for bidirectional communication by radio frequency with one or more of the other elements of the system, so as to perform recognition of the said peripherals (5, 7, 9) by the central unit (3) and reliable exchange of control, detection or signalling messages with the said peripherals. <IMAGE></p> |
