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

Claim 11:
12. An information providing system configured to communicate with an in-vehicle device installed in a vehicle via roadside antennas and communicate with a device installed in the vehicle via a network, and configured to store, in a storage, pieces of speed information of the vehicle in association with identification information of the in-vehicle device received 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, the information providing system comprising:
one or more processors; and
one or more memories having instructions, when executed by the one or more processors, to cause the information providing system to perform operations, the operations comprising:
retrieving the pieces of speed information of the vehicle in association with the identification information from the storage; and
transmitting evaluation information to the device via the network to cause the device to display the evaluation 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.