| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to make a driver under travelling perform emergency stop by informing the driver of occurrence of abnormality in a tunnel by discharging water from an emergency perception head.SOLUTION: An emergency perception device 10 comprises: an emergency perception head 14 installed in a tunnel; a constant flow valve 64 for adjusting a water amount of pressurized water supplied from a water supply piping 60 to the emergency perception head 14, to a predetermined constant flow; a perception water discharge valve 62 arranged in series with the constant flow valve 64; and a control device for performing control of opening the perception water discharge valve 62 to discharge water from the emergency perception head 14 in the case where a fire detector detects a fire, a water spray discharge detection switch for detecting water discharge from water spray equipment before start of the discharge is activated, or a button of a transmitter is operated. The emergency perception head 14 is installed on a side wall in the tunnel so as to discharge water in a direction of crossing a road in the tunnel to form an emergency perception pattern to make a driver recognize occurrence of abnormality.</p> |
