Information processing device

An information processing device for collecting data from a plurality of vehicles, the information processing device comprising:

• a network interface;
• and
• a processor programmed to:
• acquire, via the network interface, a predetermined condition for extracting, from the vehicles, a vehicle possessing first data that is data desired by a user that receives provision of information;
• query a first database that stores time-stamped vehicle travel data comprising at least vehicle position, speed, and travel trajectory information;
• identify, from the vehicles, one or a plurality of first vehicles corresponding to travel data satisfying the predetermined condition, by referencing a first database that stores travel data collected from the vehicles by:
• (i) extracting, for each vehicle, a chronological sequence of latitude-longitude coordinate pairs and speed values stored as travel-data entries;
• (ii) computing, for each vehicle, a derived travel path by temporally interpolating the coordinate pairs to produce a continuous vehicle trajectory;
• (iii) comparing the continuous vehicle trajectory with the predetermined condition to determine whether the trajectory intersects a geographic region, time window, or speed range defined by the predetermined condition;
• and
• (iv) selecting, as the first vehicles, the vehicles whose continuous trajectories satisfy the predetermined condition;
• transmit, via the network interface using a vehicle-communication protocol, to a terminal associated with the first vehicle, a request for provision of the first data;
• cause a display of a mobile terminal associated with the first vehicle to display a screen requesting permission for the provision of the first data;
• in response to an input indicating permission for the provision of the first data, receive, via the network interface, the first data;
• and
• output, to the user, the received first data through a user-facing terminal.