| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a network communication system that can still function at an area where it is difficult that a network cable is installed and at the time of a disaster typified, such as terrorism or earthquakes, during which it cannot be expected that network cables and power supply operate normally. <P>SOLUTION: In the network communication system wherein networks defined based on the IP are interconnected in a way of sandwiching a network defined, based on the IEEE 802.15.4 via gateways made available for protocols of both the networks and the sandwiched network and packets, based on the IEEE 802.15.4 partly stored with packets that is based on the IP are transmitted, the header address of the packets, based on the IP is compressed. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
