Effective Disaster Communication Method by Personalized Wireless LAN System

Recently, a wireless-LAN adapter came to be built in a notebook PC, ultra mobile PC (UMPC), a portable game machine (PSP DS), etc. Furthermore, the home which owns two or more these information machines and equipment above has increased. Moreover, at a large majority of homes, a wireless-LAN router is installed and the information environment which can access an internet from the everywhere in a house using these information machines and equipment is constructed. The present condition is that the electromagnetic wave from the setup wireless-LAN router in a residence (access point) has leaked to the outdoor neighborhood considerably in such an information environment. The leakage of the electromagnetic wave to such outdoors is that it is not desirable from a viewpoint of security reservation. However, we are advancing research of the information service system to the neighboring residents who used effectively the wave which has leaked out of doors from the wireless-LAN system of individual possession currently installed in residences, such as a single house and an apartment. In this Papers, the disaster hour-entry correspondence procedure which used effectively the leakage electromagnetic wave from the wireless-LAN access point (or Router) of the setup individual possession in a residence is proposed, and since the verification experiment was conducted and the good result was obtained.