| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a risk notification device at the time of entering a lane, which considerably reduces a danger wherein a toll collector meets an accident in a tollgate for a toll road. <P>SOLUTION: In the tollgate for a toll road, a radio tag 19 called as a RFID tag is carried by the toll collector M who is about to enter the toll collection lane 11. When a radio tag reader 20 arranged in the vicinity of the toll collection lane 11 detects the radio tag 19, the danger for entering of a vehicle is reported to the toll collector M by a warning sound generator 21 and a warning light 22 if a vehicle detection device 14 detects the vehicle 13 entering the toll collection lane 11. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
