| 摘要 |
<p>A security control method in which a security system controls security in a monitoring area, comprises the steps of: generating, by a signal generating device, a wireless beacon signal and transmitting the generated wireless beacon signal to the monitoring area or out of the monitoring area; estimating distance value between a terminal receiving the wireless beacon signal and the signal generating device; and comparing the estimated distance value with a preset distance value to control a security operation of a main device.</p> |
