| 摘要 |
Disclosed are an entrance pass system having a disaster relief support function and a terminal structure thereof. A wireless set comprises two functions which are necessary in a wireless communication system for disaster relief in a disaster site by utilizing a PicoCast technology which has no interference between the users. The two functions comprises: confirming the existence, life, and death of a survivor and enabling the survivor to transmit a message (eg. help me) to rescues. The wireless set is combined with an entrance pass to be used as the confirmation of entrance, a position report, the reception of guide broadcasting, and the response for an emergency call. In the disaster, a normal function is converted to the existence confirmation, the confirmation of a position, the reception of disaster broadcasting, and the minimum communications, even if the disaster is generated in an unpredictable sudden situation, the sudden situation is perfectly responded by using the system, which is normally used, as disaster relief equipment. The number of entrance passes, which can be reused by reutilizing the limited time slot, is infinitely increased as using a dispersed AP used as a duplicating master function. The structure of the entrance pass is simplified by fixing the position by successively delaying a positive direction control signal. The response time of the whole systems is reduced within a few seconds by making the position of a negative control signal for free. |
