JPS55156725A - Judgement device of driving asleep - Google Patents
Judgement device of driving asleepInfo
- Publication number
- JPS55156725A JPS55156725A JP6542879A JP6542879A JPS55156725A JP S55156725 A JPS55156725 A JP S55156725A JP 6542879 A JP6542879 A JP 6542879A JP 6542879 A JP6542879 A JP 6542879A JP S55156725 A JPS55156725 A JP S55156725A
- Authority
- JP
- Japan
- Prior art keywords
- tone
- circuit
- driver
- signal
- emit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Emergency Alarm Devices (AREA)
Abstract
PURPOSE: To detect a driver's sleeping under driving and give alarm to the driver by providing a device having a function to emit an alarming signal when a judgement circuit does not respond to the reference tone within a predetermined time after the generation of this tone.
CONSTITUTION: A detecting device 1 for a monotonous driving is so designed as emitting a signal when any monotonous driving condition, such as the shift switch is set in No.4 or No.5 position for a certain period, continues for a longer time than the predetermined range of time. This signal actuates a reference tone generation circuit 2 to emit a reference tone and a control tone generation circuit 3 to emit a control tone, which shall be changed in frequency operated by the driver. No.1 judgement circuit estimates the setting range of the control tone for the reference tone. No.2 judgement circuit 6 judges if the control operation by the driver is completed within a period preset by the time setting circuit 5. If estimated as not completed by No.2 judgement circuit 6, the signal puts the alarm device actuating circuit 7 into operation and the alarm device 8 emits alarm.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6542879A JPS55156725A (en) | 1979-05-25 | 1979-05-25 | Judgement device of driving asleep |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6542879A JPS55156725A (en) | 1979-05-25 | 1979-05-25 | Judgement device of driving asleep |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55156725A true JPS55156725A (en) | 1980-12-06 |
JPS6117691B2 JPS6117691B2 (en) | 1986-05-08 |
Family
ID=13286798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6542879A Granted JPS55156725A (en) | 1979-05-25 | 1979-05-25 | Judgement device of driving asleep |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55156725A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5815541U (en) * | 1981-07-24 | 1983-01-31 | 日産自動車株式会社 | Vehicle safety equipment |
US4509040A (en) * | 1981-12-01 | 1985-04-02 | Nissan Motor Company, Limited | Alarm system for preventing an automotive vehicle driver from dozing at the wheel |
US4611199A (en) * | 1983-02-18 | 1986-09-09 | Nissan Motor Company | Alarm system and method for sensing a stand-by state in a driver drowsiness detection system |
JPH0157931U (en) * | 1987-10-06 | 1989-04-11 |
-
1979
- 1979-05-25 JP JP6542879A patent/JPS55156725A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5815541U (en) * | 1981-07-24 | 1983-01-31 | 日産自動車株式会社 | Vehicle safety equipment |
US4509040A (en) * | 1981-12-01 | 1985-04-02 | Nissan Motor Company, Limited | Alarm system for preventing an automotive vehicle driver from dozing at the wheel |
US4611199A (en) * | 1983-02-18 | 1986-09-09 | Nissan Motor Company | Alarm system and method for sensing a stand-by state in a driver drowsiness detection system |
JPH0157931U (en) * | 1987-10-06 | 1989-04-11 |
Also Published As
Publication number | Publication date |
---|---|
JPS6117691B2 (en) | 1986-05-08 |
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