*

::: 可授權專利

1,4–雙(二氯甲基)四氟苯之製備方法

創作型式:
發明
專利證號:
US7544847B1
發明人:
王時俊、林材峰、何潛淵、林俊旭
國別:
美國
獲證日期:
2009/06/09
專利摘要:
An emergency rescue system and a rescue-information judgment method are disclosed. The emergency rescue system includes a plurality of fixed nodes, a dynamic node and a back-end processing platform. Each fixed node has its own fixed node identification. The dynamic node can be a portable device with an emergency illumination module. If the dynamic node is manipulated to broadcast a mayday signal, at least one of the fixed nodes senses the mayday signal. Each fixed node which senses the mayday signal sends the fixed node identification thereof and signal strength of the sensed mayday signal to the back-end processing platform. Thereby, the back-end processing platform calculates and determines a rescue location relative to the dynamic node.
IPC國際分類號:
G01S000302