RISK ESTIMATION DEVICE, RISK ESTIMATION METHOD AND COMPUTER PROGRAM FOR RISK ESTIMATION

• Main Authors: AOKI YOSHIMITSU, HARA KOSUKE, OTSUKA KYOHEI, KATAOKA HIROKATSU
• Format: Patent
• Language: English; Japanese
• Published: 21.07.2016
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PERFORMING OPERATIONS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SIGNALLING; TESTING; TRAFFIC CONTROL SYSTEMS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

PROBLEM TO BE SOLVED: To provide a risk estimation device capable of estimating a risk degree to various risks that occur when a vehicle travels.SOLUTION: The risk estimation device includes a feature amount extraction part (41) for extracting a plurality of feature amounts representing features of conditions around a vehicle (10) on the basis of sensor information generated by a sensor (11), a scene estimation part (42) for acquiring, about each scene a probability that a condition around the vehicle (10) corresponds to the scene by applying the plurality of feature amounts to a probability distribution representing a distribution of probabilities in which conditions around the vehicle (10) correspond to a plurality of scenes, acquired in each of the plurality of scenes in which a risk occurs, a plurality of separate risk calculation parts (43-1 to 43-n) for calculating a separate risk about each of the plurality of scenes from the plurality of feature amounts, and a risk estimation part (44) for calculating a risk about a condition around the vehicle (10) in accordance with a separate risk and the probability about each of the plurality of scenes.SELECTED DRAWING: Figure 2 【課題】車両の走行の際に生じる様々な危険に対する危険の度合いを推定できる危険度推定装置を提供する。【解決手段】危険度推定装置は、センサ（１１）により生成されたセンサ情報に基づいて、車両（１０）の周囲の状況の特徴を表す複数の特徴量を抽出する特徴量抽出部（４１）と、危険が生じる複数のシーンのそれぞれごとに求められた、車両（１０）の周囲の状況がそのシーンに該当する確からしさの分布を表す確率分布に複数の特徴量を適用することで、各シーンについて、車両（１０）の周囲の状況がそのシーンに該当する確からしさを求めるシーン推定部（４２）と、複数の特徴量から複数のシーンのそれぞれについての個別危険度を算出する複数の個別危険度算出部（４３−１〜４３−ｎ）と、複数のシーンのそれぞれについての個別危険度と確からしさに応じて車両（１０）の周囲の状況についての危険度を算出する危険度推定部（４４）とを有する。【選択図】図２