INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND PROGRAM
An information processing device uses a spatiotemporal database in which information about objects on a road is continuously stored in association with time information and space information. The information processing device includes a search unit that searches the spatiotemporal database for information about trajectories of objects in a predetermined area, a prediction unit that predicts future paths of the objects on the basis of the information about the trajectories of the objects, a determination unit that determines whether there is a possibility that objects will collide on the basis of the future paths, and a notification unit that notifies the affected vehicles or the smartphones in a case where there is a possibility of collision.
1 . An information processing device using a spatiotemporal database in which information about objects on a road is continuously stored in association with time information and space information, the information processing device comprising:
a search unit, comprising one or more processors, configured to search the spatiotemporal database for information about trajectories of objects in a predetermined area;
a prediction unit comprising one or more processors, configured to predict future paths of the objects on the basis of the information about the trajectories of the objects;
a determination unit comprising one or more processors, configured to determine whether or not objects are likely to collide based on the future paths; and
a notification unit, comprising one or more processors, configured to notify affected objects in a case where there is a possibility of collision.
2 . The information processing device according to claim 1 , wherein in a case where a future path of an object is stored in the spatiotemporal database, the prediction unit is configured to acquire the future path from the spatiotemporal database.
3 . The information processing device according to claim 1 , wherein the search unit is configured to generate a spatiotemporal code using time information indicating a time desired to be searched and space information indicating a space desired to be searched, and search the spatiotemporal database using the generated spatiotemporal code as a key.
4 . An information processing method using a spatiotemporal database in which information about objects on a road is continuously stored in association with time information and space information, wherein the method comprises:
searching the spatiotemporal database for information about trajectories of objects in a predetermined area;
predicting future paths of the objects on the basis of the information about the trajectories of the objects;
determining whether or not objects are likely to collide based on the future paths; and
notifying affected objects in a case where there is a possibility of collision.
5 . The information processing method according to claim 4 , further comprising acquiring the future path from the spatiotemporal database in a case where a future path of an object is stored in the spatiotemporal database.
6 . The information processing method according to claim 4 , further comprising generating a spatiotemporal code using time information indicating a time desired to be searched and space information indicating a space desired to be searched, and searching the spatiotemporal database using the generated spatiotemporal code as a key.
7 . A non-transitory computer readable medium storing a program, wherein execution of the program causes a computer to operate as each unit of the information processing device according to claim 1 .
8 . A non-transitory computer readable medium storing a program installed in a terminal via a network, wherein execution of the program causes a computer to operate as each unit of the information processing device according to claim 1 .