To provide a positional accuracy determination device capable of determining an accuracy state at an estimated current position of a vehicle.SOLUTION: A positional accuracy determination device is configured to: estimates a first position of a mobile object at a first time based on an image representing road features on a road surface around the mobile object at the first time and positional information of the road features on the road surface; estimate a second position at the first time based on a position of the mobile object at a second time prior to the first time and an amount of movement and an azimuth angle change amount from the second time to the first time; input the first position and second position at the first time into a prediction filter and calculate a current position of the mobile object at the first time; and determine a state of accuracy of the current location of the mobile object based on the current position of the mobile object at the first time, and a first difference amount between a position of the mobile object at a time prior to the first time, and a position estimated base on an amount of movement and an azimuth angle change amount of the mobile object from the prior time to the first time.SELECTED DRAWING: Figure 2

    【課題】推定された車両の現在位置の精度の状態を判定できる位置判定画装置を提供する。【解決手段】位置精度判定装置は、第1時刻における移動物体の周囲の路面上の道路特徴物を表す画像と、路面上の道路特徴物の位置情報とに基づいて、第1時刻における移動物体の第1位置を推定し、第1時刻よりも前の第2時刻における移動物体の位置と、第2時刻から第1時刻までの移動物体の移動量及び方位角変化量に基づいて、第1時刻における移動物体の第2位置を推定し、第1時刻における第1位置及び第2位置を予測フィルタに入力して、第1時刻における移動物体の現在位置を算出し、第1時刻における移動物体の現在位置と、第1時刻よりも前の時刻における移動物体の位置と、前の時刻から第1時刻までの移動物体の移動量及び方位角変化量に基づいて推定された位置との間の第1相違量に基づいて、移動物体の現在位置の精度の状態を判定する。【選択図】図2


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    Title :

    POSITIONAL ACCURACY DETERMINATION DEVICE, POSITIONAL ACCURACY DETERMINATION COMPUTER PROGRAM, AND POSITIONAL ACCURACY DETERMINATION METHOD


    Additional title:

    位置精度判定装置、位置精度判定用コンピュータプログラム及び位置精度判定方法


    Contributors:

    Publication date :

    2023-06-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS



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