Patent ID: 8788140

Claim:
An information providing system configured to provide a vehicle with information to assist driving the vehicle via a road-to-vehicle communication, comprising: an information providing center configured to have a first static information that is individually version-controlled in a database at the information providing center and to transmit a dynamic information including a version information of the first static information, the dynamic information referring to the first static information; and an on-vehicle device configured to have a second static information, that is individually version-controlled in a database at the on-vehicle device, corresponding to the first static information, to implement a drive assist service by using the second static information and the dynamic information received from the information providing center, and to determine a content of the drive assist service to be implemented, based on the version information of the first static information and a version information of the second static information, wherein a content of the first static information corresponds to a content of the second static information, and the content of the first static information is identical to the content of the second static information if the version information of the first static information matches the version information of the second static information, wherein, if the version information of the first static information is newer than the version information of the second static information, or if the second static information corresponding to the first static information does not exist, the on-vehicle device implements the drive assist service, not by combining the dynamic information with the content of the second static information corresponding to the content of the first static information, but by combining the dynamic information with a static information generated by adding a predetermined information pre-stored in the on-vehicle device to the content of the second static information or by combining the dynamic information with a predetermined information pre-stored in the on-vehicle device which is different from the content of the second static information.