To provide a driver abnormal posture detection device for appropriately determining occurrence of an abnormal posture of a driver even when a driver has corrected sitting.SOLUTION: A driver abnormal posture detection device includes: an in-vehicle camera 1; a driver position detection section 11 for calculating a measurement value of a driver head state based on a driver image from the in-vehicle camera 1; a history generation section 12 for generating a history of a measurement value of a driver head state; a reference value calculation section 13 for calculating a reference value of a measurement value of a driver head state based on a history; an abnormal posture determination section 14 for determining a driver posture abnormality where a deviation of a measurement value of a driver head state from a reference value by exceeding a threshold value continues over an abnormality determination time; and a sitting correction determination section 15 for determining presence/absence of sitting correction of a driver; and an abnormality determination time change section 16 for setting an abnormality determination time to be longer than a standard time when a driver has corrected sitting.SELECTED DRAWING: Figure 1
【課題】 ドライバの座り直しがあった場合でも、ドライバの異常姿勢発生の判定を適切に行うことができるドライバ異常姿勢検出装置を提供する。【解決手段】 ドライバ異常姿勢検出装置において、車内カメラ1と、車内カメラ1からのドライバ画像に基づいてドライバ頭部状態の計測値を算出するドライバ位置検出部11と、ドライバ頭部状態の計測値の履歴を生成する履歴生成部12と、履歴に基づいてドライバ頭部状態の計測値の基準値を算出する基準値算出部13と、ドライバ頭部状態の計測値と基準値の閾値を超えての乖離が異常判定時間を超えて継続したドライバ姿勢異常の判定を行う異常姿勢判定部14と、ドライバの座り直しの有無を判定する座り直し判定部15と、ドライバの座り直しがあった場合に、異常判定時間を標準時間よりも長い時間に設定する異常判定時間変更部16と備えた。【選択図】 図1
DRIVER ABNORMAL POSTURE DETECTION DEVICE
ドライバ異常姿勢検出装置
2020-11-12
Patent
Elektronische Ressource
Japanisch
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