| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve certainty of information acquisition by a vehicle user by presenting clearly received plural information to the vehicle user. SOLUTION: When receiving plural information from a roadside radio communication device 100 installed on the roadside, a CPU 35 measures a vehicle mileage from the receiving time of the information based on a vehicle speed pulse signal from the outside, and switches and displays each information received in each measured vehicle mileage. Hereby, the CPU 35 presents the plural information successively to the vehicle user.</p> |
