Distribution information generator and method for positioning difference between GNSS positioning and precision positioning based on video and precision map

摘要

PROBLEM TO BE SOLVED: To calculate and calculate a positioning difference value between precision positioning information acquired by matching an object of a facility object in a video and an object of a precision map and GNSS positioning information acquired based on GNSS (Global Navigation Satellite System). Provided are devices and methods for distributing distribution information including positioning difference values to the surroundings via a communication network. SOLUTION: A distribution information generation method acquires video information including an image of a facility object obtained by photographing one or more facility objects located around a road, and uses the acquired video information as a facility object. By matching the objects on the precision map, the precision positioning information is acquired for the video shooting position, the positioning difference value between the precision positioning information at the video shooting position and the GNSS positioning information at the corresponding video shooting position is calculated, and this is used as the periphery. Distribute to. [Effect] It is possible to improve one's own positioning accuracy by correcting the current positioning acquired based on GNSS by using the positioning difference value distributed by the peripheral terminals. [Selection diagram] FIG. 9