Information management system, center, information management method, and storage medium

A center receiving information transmitted from a first vehicle and a second vehicle and managing information to be provided to a user, the first vehicle being configured to transmit, to the center, first vehicle information including first GNSS position information indicative of a position of the first vehicle, the second vehicle being configured to transmit, to the center, second vehicle information including second GNSS position information indicative of a position of the second vehicle and high-precision position information indicative of the position of the second vehicle, the high-precision position information having a higher accuracy than an accuracy of the second GNSS position information,

• the center comprising:
• a vehicle information receiving unit receiving the first vehicle information transmitted from the first vehicle and the second vehicle information transmitted from the second vehicle;
• a correction information acquisition unit acquiring correction information, which indicates a difference between the second GNSS position information and the high-precision position information, the second GNSS position information and the high-precision position information being included in the second vehicle information received by the vehicle information receiving unit;
• a correction unit calculating corrected position information indicative of the position of the first vehicle using the first GNSS position information included in the first vehicle information received by the vehicle information receiving unit and the correction information acquired by the correction information acquisition unit, the corrected position information having a higher accuracy than an accuracy of the first GNSS position information;
• a recording unit recording the first vehicle information, the second vehicle information, and the corrected position information calculated by the correction unit;
• and
• an information providing unit transmitting, to an external device that is usable by the user, the information recorded in the recording unit in response to a request from the user.

An information management method of collecting information from a first vehicle and a second vehicle and managing information to be provided to a user, the information management method comprising:

• collecting, from the first vehicle, first vehicle information including first GNSS position information indicative of a position of the first vehicle;
• collecting, from the second vehicle, second vehicle information including second GNSS position information indicative of a position of the second vehicle and high-precision position information indicative of the position of the second vehicle, the high-precision position information having a higher accuracy than an accuracy of the second GNSS position information;
• acquiring correction information, which indicates a difference between the second GNSS position information and the high-precision position information, the second GNSS position information and the high-precision position information being included in the second vehicle information;
• calculating corrected position information indicative of the position of the first vehicle using the first GNSS position information included in the first vehicle information and the correction information, the corrected position information having a higher accuracy than an accuracy of the first GNSS position information;
• recording the first vehicle information, the second vehicle information, and the corrected position information;
• and
• in response to a request from the user, transmitting the first vehicle information, the second vehicle information, and the corrected position information, which are recorded, to an external device that is usable by the user.

A computer-readable non-transitory storage medium storing a program, the program including instructions to be executed by a computer of a center, the center receiving information transmitted from a first vehicle and a second vehicle and managing information to be provided to a user, the first vehicle being configured to transmit, to the center, first vehicle information including first GNSS position information indicative of a position of the first vehicle, the second vehicle being configured to transmit, to the center, second vehicle information including second GNSS position information indicative of a position of the second vehicle and high-precision position information indicative of the position of the second vehicle, the high-precision position information having a higher accuracy than an accuracy of the second GNSS position information,

• the instructions comprising:
• collecting, from the first vehicle, first vehicle information including first GNSS position information indicative of a position of the first vehicle;
• collecting, from the second vehicle, second vehicle information including second GNSS position information indicative of a position of the second vehicle and high-precision position information indicative of the position of the second vehicle, the high-precision position information having a higher accuracy than an accuracy of the second GNSS position information;
• acquiring correction information, which indicates a difference between the second GNSS position information and the high-precision position information, the second GNSS position information and the high-precision position information being included in the second vehicle information;
• calculating corrected position information indicative of the position of the first vehicle using the first GNSS position information included in the first vehicle information and the correction information, the corrected position information having a higher accuracy than an accuracy of the first GNSS position information;
• recording the first vehicle information, the second vehicle information, and the corrected position information;
• and
• in response to a request from the user, transmitting the first vehicle information, the second vehicle information, and the corrected position information, which are recorded, to an external device that is usable by the user.