To provide a seat belt wearing state determination device which can determine a seat belt wearing state of a crewman with good accuracy.SOLUTION: This seat belt wearing state determination device comprises: a prescribed marker member which is provided on at least a part of a seat belt, and reflects or absorbs electromagnetic waves in a specific wavelength band at a ratio different from that of a blank of the seat belt; an image capture processing part which radiates electromagnetic waves in the specific wavelength band toward a prescribed range which includes a crewman seating on a seat, and generates an image which indicates intensity distribution of electromagnetic waves in the specific wavelength band on the basis of reflection waves reflected in the prescribed range; a shape estimation part which estimates a shape of the crewman on the basis of the image, detects the marker member from the image, and estimates a shape of the seat belt on the basis of the detected marker member; and a determination processing part which determines a seat belt wearing state of the crewman on the basis of a positional relationship between the crewman and the seat belt whose shapes were estimated.SELECTED DRAWING: Figure 1
【課題】乗員のシートベルトの装着状態を精度よく判定できるシートベルト装着状態判定装置を提供する。【解決手段】シートベルトの少なくとも一部に設けられ、シートベルトの素材とは異なる割合で特定波長帯の電磁波を反射又は吸収する所定のマーカー部材と、座席に着座した乗員を含む所定の範囲に向けて特定波長帯の電磁波を照射して、所定の範囲で反射する反射波に基づいて特定波長帯の電磁波の強度分布を示す画像を生成する画像撮像処理部と、画像に基づいて乗員の形状を推定すると共に、画像からマーカー部材を検出して、検出したマーカー部材に基づいてシートベルトの形状を推定する形状推定部と、形状が推定された乗員とシートベルトとの位置関係に基づいて、乗員のシートベルトの装着状態を判定する判定処理部と、を備える。【選択図】図1
SEAT BELT WEARING STATE DETERMINATION DEVICE
シートベルト装着状態判定装置
2019-12-12
Patent
Electronic Resource
Japanese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen |
BUCKLE, SEAT BELT WEARING STATE DETECTION SYSTEM AND SEAT BELT WEARING STATE DETECTION METHOD
European Patent Office | 2019
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