| 摘要 |
PURPOSE: A road accident alarming system is provided to expand a monitoring range according to the distances between systems and the number of the systems. CONSTITUTION: A signal transmitting and receiving system(10) generates and receives periodical electric signals. A connecting line(11) transmits and receives the electric signals of the signal transmitting and receiving system and is disconnected in case of the occurrence of accidents. A connecting line attaching unit(12) attaches a connecting line to the guardrail of a road, the median strip of the road, and the collapsible ground. If the connecting line is disconnected, a road accident alarming system(21) is operated. |
