摘要：Abstract Purpose In northern countries, we sometimes encounter heavy snow fall and it causes low visible condition. In this circumstance, we have difficulty to keep the driving lane. For the purpose of safety driving, we develop the vehicle navigation system with Ultra High Frequency (UHF) Radio Frequency Identification (RF-ID) to keep the driving lane. Methods We obtain a vehicle location on the driving lane using UHF RF-ID system. The vehicle position in driving lane is written on RF-ID tags in advance and these tags are buried in an asphalt road. Our experimental vehicle equips RF-ID antenna which communicates with RF-ID tags and gets vehicle location on the driving lane. This position information is given to a driver by Liquid Cristal Display. We make Graphical User Interface which shows vehicle location and direction to the center of the driving lane. And our system gives voice instruction, which says the above direction. In order to simulate low visible condition, we put a bubble wrap onthe wind shield in front of driver’s seat. This bubble wrap makes driver difficult to see the outside. Results In our driving experiment with a daily driver and a novice driver, they can keep on the driving lane using our navigation system against the bubble wrap on the windshield. Conclusions The navigation system with RF-ID is useful underthe low visible condition. And low visible condition is occurred in not only in the heavy snow fall, also thick fog and so on.
关键词：Vehicle navigation;UHF RF-ID;Graphical user interface;Voice instruction
