CN109920212A - Driver fatigue state display alarm method based on instrument - Google Patents
Driver fatigue state display alarm method based on instrument Download PDFInfo
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- CN109920212A CN109920212A CN201910316293.7A CN201910316293A CN109920212A CN 109920212 A CN109920212 A CN 109920212A CN 201910316293 A CN201910316293 A CN 201910316293A CN 109920212 A CN109920212 A CN 109920212A
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Abstract
A kind of driver fatigue state display alarm method based on instrument, comprising: vehicular meter obtains driver fatigue grade, speed, GPS time and running time from vehicle；Whether detection running time is greater than running time threshold value, if so, the current interface in vehicular meter carries out display alarm；Meanwhile driving dangerousness degree grade is calculated, vehicular meter enters fatigue driving interface, and carries out classification prompting according to driving dangerousness degree grade.The present invention can carry out judgement classification to current driving dangerousness degree, to carry out classification prompting in conjunction with driving dangerousness degree grade and driving status, and increase individual fatigue driving interface, when driver tired driving, the interface is shown, it can more effectively watchful driver.
Description
Technical field
The invention belongs to vehicle fatigue detecting technology field more particularly to a kind of driver fatigue state based on instrument are aobvious
Show based reminding method.
Background technique
Along with the intelligent development of automobile, more and more advanced DAS (Driver Assistant System)s are applied in automobile, are driven
Member's fatigue detecting system is exactly one.Data show, have in the etesian automobile safety accident in the whole world nearly 20% be due to
Caused by fatigue driving.The application of driver fatigue detection, must can effectively remind driver, reduce the generation of accident.
Driver's detection system comes across the neck that aircraft, high-speed rail etc. drive with automatic Pilot or high rank auxiliary earliest
It is a kind of driver fatigue monitoring and warning system based on human physiological reaction feature in domain.
On current vehicle, after driver's detection system detects driver fatigue, it can be believed by instrument display alarm
Breath.But reminder alarm information is not eye-catching enough to user, can not effectively remind driver, and can not carry out classification prompting
Warning.
Summary of the invention
Based on this, in view of the above technical problems, a kind of driver fatigue state display alarm method based on instrument is provided.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of driver fatigue state display alarm method based on instrument, comprising:
Vehicular meter obtains driver fatigue grade, speed, GPS time and running time from vehicle；
Whether detection running time is greater than running time threshold value, if so, the current interface in vehicular meter is shown
It reminds；
Meanwhile driving dangerousness degree grade is calculated, vehicular meter enters fatigue driving interface, and according to driving dangerousness degree grade
Classification prompting is carried out, the calculating driving dangerousness degree grade includes:
Calculating parameter C1, when the running time is greater than running time threshold value, C1=1+ (running time × 4)/20 is no
Then, C1=1；
Calculating parameter C2 detects GPS time whether in GPS time threshold range, if so, C2=1.1, otherwise, C2
=1；
Calculating parameter C3, whether detection speed is greater than speed threshold value, if so, C3=1+ (speed -60)/150, otherwise,
C3=1；
Driving dangerousness value is calculated by the formula driving dangerousness value=C1 × C2 × C3 × person's of sailing level of fatigue, and is driven to described
It sails dangerous values to be rounded downwards, obtains driving dangerousness degree grade.
The vehicular meter enters fatigue driving interface, and carries out classification prompting according to driving dangerousness degree grade and include:
When driving dangerousness degree grade=1, vehicular meter carries out display alarm in fatigue driving interface；
When driving dangerousness degree grade=2, vehicular meter carries out display alarm, while vehicle instrument in fatigue driving interface
Table carries out amount of bass alarm；
When driving dangerousness degree grade=3, vehicular meter carries out display alarm in fatigue driving interface, and carries out height
Volume alarm, meanwhile, vibration reminding is carried out by vehicle seat control unit and steering wheel unit.
When driving dangerousness degree grade=3, the vehicular meter also passes through driving dangerousness degree of the V2V technology by current vehicle
Grade and information of vehicles are sent to other vehicles on periphery.
In the fatigue driving interface, display alarm is located at instrument intermediate region, and occupies 2/3 instrument display surface
Product, revolving speed, speed, entertainment information and navigation information are respectively positioned on the fringe region among instrument.
The running time threshold value is 4 hours, and the GPS time threshold range is 8 a.m. to 6 pm, the vehicle
Fast threshold value is 60,000 ms/h.
The present invention can carry out judgement point to current driving dangerousness degree in conjunction with driving dangerousness degree grade and driving status
Grade, to carry out classification prompting, and increases individual fatigue driving interface, when driver tired driving, shows the interface,
It can more effectively watchful driver.
Detailed description of the invention
The present invention is described in detail with reference to the accompanying drawings and detailed description:
Fig. 1 is the schematic diagram of calculating driving dangerousness degree grade of the invention.
Specific embodiment
A kind of driver fatigue state display alarm method based on instrument, comprising:
One, vehicular meter obtains driver fatigue grade DF_Lev (from the Study in Driver Fatigue State Surveillance System of vehicle from vehicle
Obtain), vehicle velocity V _ Spd, GPS time G_time and running time T_time.
Two, whether detection running time T_time is greater than running time threshold value, if so, in the current interface of vehicular meter
Display alarm is carried out, such as shows text " driving time is too long, it is proposed that has a rest ".
Three, driving dangerousness degree grade DFDanger_Lev simultaneously, is calculated, vehicular meter enters fatigue driving interface, and root
Classification prompting is carried out according to driving dangerousness degree grade, wherein as shown in Figure 1, calculating driving dangerousness degree grade DFDanger_Lev packet
It includes:
A, calculating parameter C1, when running time is greater than running time threshold value, C1=1+ (running time T_time × 4)/20,
Otherwise, C1=1.
B, calculating parameter C2 detects GPS time G_time whether in GPS time threshold range, if so, C2=1.1,
Otherwise, C2=1.
C, calculating parameter C3, whether detection vehicle velocity V _ Spd is greater than speed threshold value, if so, C3=1+ (vehicle velocity V _ Spd-
60)/150, otherwise, C3=1.
D, it is calculated by the formula driving dangerousness value DFDanger_Lev=C1 × C2 × C3 × person's of sailing level of fatigue DF_Lev
Driving dangerousness value, and driving dangerousness value is rounded downwards by integerfloor () function, obtain driving dangerousness degree etc.
Grade DFDanger_Lev.
The present invention can combine driving dangerousness degree grade and driving status (vehicle velocity V _ Spd, GPS time G_time and row
Sail time T_time), judgement classification is carried out to current driving dangerousness degree, to carry out classification prompting, and is increased independent
Fatigue driving interface show the interface when driver tired driving, more effectively watchful driver.
In fatigue driving interface, display alarm is located at instrument intermediate region, and occupies 2/3 instrument display area, turns
Speed, speed, entertainment information and navigation information are respectively positioned on the fringe region among instrument.Show that fatigue is driven in instrument nucleus
Prompting is sailed, it can preferably watchful driver.
In the present embodiment, running time T_time threshold value is 4 hours, and GPS time G_time threshold range is 8 a.m.
To 6 pm, vehicle velocity V _ Spd threshold value is 60,000 ms/h.
Vehicular meter enters fatigue driving interface, and carries out classification prompting according to driving dangerousness degree grade DFDanger_Lev
Include:
A, as driving dangerousness degree grade DFDanger_Lev=1, vehicular meter is shown in fatigue driving interface
It reminds, reminds driver being in fatigue driving by text.
B, as driving dangerousness degree grade DFDanger_Lev=2, vehicular meter is shown in fatigue driving interface
It reminds, reminds driver being in fatigue driving by text, while vehicular meter carries out (40-60 points of amount of bass alarm
Shellfish).
In the present embodiment, with 50 decibels of progress amount of bass alarms.
C, as driving dangerousness degree grade DFDanger_Lev=3, vehicular meter is shown in fatigue driving interface
It reminds, reminds driver being in fatigue driving by text, and carry out louder volume alarm (70-90 decibels), meanwhile, lead to
It crosses vehicle seat control unit and steering wheel unit carries out vibration reminding: driver fatigue vibration being exported by CAN bus and is mentioned
Awake request signal (DF_Vibration_Req) gives chair control unit and steering wheel unit, chair control unit and steering wheel list
Member receives and further reminds driver with certain frequency vibration after the signal.
In the present embodiment, with 80 decibels of progress louder volume alarms.
Preferably, vehicular meter also passes through V2V technology as driving dangerousness degree grade DFDanger_Lev=3
(vehicle to vehicle) by the driving dangerousness degree grade and information of vehicles of current vehicle (automobile brand model, color,
Licence plate, position and current vehicle speed) it is sent to other vehicles on periphery.
But those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this
Invention, and be not used as limitation of the invention, as long as in spirit of the invention, to embodiment described above
Variation, modification will all fall within the scope of claims of the present invention.
Claims (5)
1. a kind of driver fatigue state display alarm method based on instrument characterized by comprising
Vehicular meter obtains driver fatigue grade, speed, GPS time and running time from vehicle；
Whether detection running time is greater than running time threshold value, if so, the current interface in vehicular meter carries out display alarm；
Meanwhile driving dangerousness degree grade is calculated, vehicular meter enters fatigue driving interface, and is carried out according to driving dangerousness degree grade
Classification is reminded, and the calculating driving dangerousness degree grade includes:
Calculating parameter C1, when the running time is greater than running time threshold value, C1=1+ (running time × 4)/20, otherwise, C1
=1；
Calculating parameter C2 detects GPS time whether in GPS time threshold range, if so, C2=1.1, otherwise, C2=1；
Calculating parameter C3, whether detection speed is greater than speed threshold value, if so, C3=1+ (speed -60)/150, otherwise, C3=
1；
Driving dangerousness value is calculated by the formula driving dangerousness value=C1 × C2 × C3 × person's of sailing level of fatigue, and is endangered to the driving
Danger value is rounded downwards, and driving dangerousness degree grade is obtained.
2. a kind of driver fatigue state display alarm method based on instrument according to claim 1, which is characterized in that
The vehicular meter enters fatigue driving interface, and carries out classification prompting according to driving dangerousness degree grade and include:
When driving dangerousness degree grade=1, vehicular meter carries out display alarm in fatigue driving interface；
When driving dangerousness degree grade=2, vehicular meter carries out display alarm in fatigue driving interface, at the same vehicular meter into
The alarm of row amount of bass；
When driving dangerousness degree grade=3, vehicular meter carries out display alarm in fatigue driving interface, and carries out louder volume
Alarm, meanwhile, vibration reminding is carried out by vehicle seat control unit and steering wheel unit.
3. a kind of driver fatigue state display alarm method based on instrument according to claim 2, which is characterized in that
When driving dangerousness degree grade=3, the vehicular meter also pass through V2V technology by the driving dangerousness degree grade of current vehicle and
Information of vehicles is sent to other vehicles on periphery.
4. a kind of driver fatigue state display alarm method based on instrument according to claim 1 or 3, feature exist
In in the fatigue driving interface, display alarm is located at instrument intermediate region, and occupies 2/3 instrument display area, turns
Speed, speed, entertainment information and navigation information are respectively positioned on the fringe region among instrument.
5. a kind of driver fatigue state display alarm method based on instrument according to claim 4, which is characterized in that
The running time threshold value is 4 hours, and the GPS time threshold range is 8 a.m. to 6 pm, and the speed threshold value is
60000 ms/h.
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| CN201910316293.7A CN109920212A (en) | 2019-04-19 | 2019-04-19 | Driver fatigue state display alarm method based on instrument |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110843671A (en) * | 2019-12-20 | 2020-02-28 | 南京机电职业技术学院 | Device for calculating automobile driving time |
| CN111696313A (en) * | 2020-05-25 | 2020-09-22 | 一汽奔腾轿车有限公司 | Driver attention reminding system and design method |
| CN112319482A (en) * | 2019-08-01 | 2021-02-05 | 上海擎感智能科技有限公司 | Vehicle, fatigue driving early warning method, system, medium and vehicle-mounted terminal thereof |
| CN113470314A (en) * | 2020-03-31 | 2021-10-01 | 北京新能源汽车股份有限公司 | Fatigue early warning control method, device, equipment and automobile |
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Application publication date: 20190621 |
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