Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1984-02-15
1986-09-09
Rowland, James L.
Communications: electrical
Condition responsive indicating system
Specific condition
180272, G08B 2300
Patent
active
046111999
ABSTRACT:
A drowsiness alarm system and method for use in automotive vehicles is set to a stand-by state in response to a specific sequence of steering wheel maneuvers which may reflect driver drowsiness, for example, a relatively long period during which the steering wheel is not turned followed by an abrupt steering adjustment. From the standby state, an alarm or display alerting the driver will be generated in response to another sequence of steering maneuver confirming driver drowsiness. The second sequence of maneuvers may be selected from among a number of conventional steering behavior criteria. If driver drowsiness is not confirmed within a predetermined period of time after initiation of the stand-by state, the system is reset to its initial state.
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Iizuka Haruhiko
Obara Hideo
Seko Yasutoshi
Yanagishima Takayuki
Hofsass Jeffery A.
Nissan Motor Company
Rowland James L.
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