To provide a drowsiness warning device for appropriately issuing warning at a drowsiness level that matches a sensation of a driver concerning the drowsiness level of the driver.SOLUTION: A drowsiness warning device 1 includes: drowsiness level determination means 9 for determining a drowsiness level of a driver; preliminary warning means (a warning control section 10) for issuing a preliminary warning when it is determined that the drowsiness level is higher than a warning threshold on the basis of comparison between the drowsiness level determined by the drowsiness level determination means and the warning threshold; warning means (the warning control section 10) for issuing actual warning to urge awakening from drowsiness to the driver as necessary after the preliminary warning is issued by the preliminary warning means; response detection means (the warning control section 10) for detecting a fact that the driver performs a predetermined response operation within a fixed time after the preliminary warning is issued by the preliminary warning means; and threshold change means for changing a warning threshold to be higher when a response operation is detected by the response detection means (the warning control section 10).SELECTED DRAWING: Figure 1
【課題】ドライバの眠気のレベルに関し、ドライバの感覚により合致した眠気レベルで、警報を適切に行う居眠り警報装置を提供する。【解決手段】居眠り警報装置1は、ドライバの眠気のレベルを判定する眠気レベル判定手段9と、眠気レベル判定手段の判定した眠気レベルを警報閾値と比較することに基づき眠気レベルが警報閾値を越えて高い場合に予備警報を行う予備警報手段(警報制御部10)と、予備警報手段による予備警報後に、必要に応じてドライバに対し眠気からの覚醒を促す本警報を行う警報手段(警報制御部10)と、予備警報手段による予備警報が発せられてから一定時間内に、ドライバが所定の応答動作を行ったことを検出する応答検出手段(警報制御部10)と、応答検出手段(警報制御部10)により応答動作が検出された場合に、警報閾値をより高くするように変更する閾値変更手段を備える。【選択図】図1
DROWSINESS WARNING DEVICE
居眠り警報装置
2019-07-11
Patent
Electronic Resource
Japanese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme |
British Library Online Contents | 1996
|Development of a Drowsiness Warning System
British Library Conference Proceedings | 1994
|The development of drowsiness warning devices
Automotive engineering | 1985
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