Patent ID: 11869280
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An information providing method in an information providing system configured to communicate with an in-vehicle device installed in a vehicle via roadside antennas, the information providing method comprising:
acquiring pieces of speed information of the vehicle in association with identification information of the in-vehicle device from the in-vehicle device via the roadside antennas, each of the pieces of speed information having been stored in the in-vehicle device each time the vehicle moves a prescribed distance before the vehicle passes by the roadside antennas; and
causing an information display device to display evaluation information in association with the identification information, the evaluation information indicating a frequency of occurrence of sudden acceleration events or sudden deceleration events of the vehicle, the frequency of occurrence being obtained from a proportion of differences between calculation values outside a threshold range, the calculation values being calculated on a basis of the pieces of speed information in a prescribed period corresponding to the pieces of speed information stored in the in-vehicle device, the evaluation information indicating that a driver of the vehicle has a tendency of the sudden acceleration events or the sudden deceleration events when the proportion is higher than or equal to a prescribed value,
wherein the in-vehicle device transmits the pieces of speed information of the vehicle and the identification information of the in-vehicle device to the roadside antennas, whereupon the information providing system acquires the pieces of speed information of the vehicle and the identification information of the in-vehicle device from the roadside antennas.