| 摘要 |
A security system including in combination a signal transmission means carried by an object wherein said signal transmission means is adapted to transmit a signal, signal receiver means adapted to receive signals, transmitted by the signal transmission means, control means adapted to process received signals and adapted to control an alarm system in accordance to the received signals, wherein the control means in response to a processed received signal from said signal transmission means controls the alarm system such that the presence of objects with said signal transmission means in a designated area will not activate the alarm of the alarm system, however the control means continues to allow the alarm of the alarm system to be activated if the alarm system senses objects without signal transmission means in the designated area. |
