CN107890351A - A kind of fatigue driving recognition methods - Google Patents
A kind of fatigue driving recognition methods Download PDFInfo
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- CN107890351A CN107890351A CN201711199593.9A CN201711199593A CN107890351A CN 107890351 A CN107890351 A CN 107890351A CN 201711199593 A CN201711199593 A CN 201711199593A CN 107890351 A CN107890351 A CN 107890351A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
- A61B5/18—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state for vehicle drivers or machine operators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
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- A—HUMAN NECESSITIES
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- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6893—Cars
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms
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Abstract
Fatigue driving recognition methods includes initialization step, driving path image acquisition step, driving path image procossing, analytical procedure, driver's heartbeat acquisition step and fatigue driving judgment step, wherein control device connects driving path test module respectively by serial communication line, fatigue driving test module and triggers circuit, control device controls image collecting device collection vehicle front-end image signal in the process of moving, by the picture signal after processing judge vehicle whether straight-line travelling, heartbeat detection means starts to detect driver's heartbeat signal in driver's heartbeat acquisition step, and heartbeat signal is transmitted to control device；Control device sees if fall out default heartbeat scope according to the heartbeat signal, and speed is limited in safe range by control device if beyond default heartbeat scope, warning device produces sound and light alarm signal.
Description
Technical field
The present invention relates to intelligence test field, more particularly to a kind of fatigue driving recognition methods.
Background technology
Driver produces the imbalance of physiological function and mental function, objectively driven after continuous driving for a long time
Sail technical ability and decline phenomenon, driver's poor sleeping quality or deficiency, long-duration driving vehicle, fatigue, driving fatigue meeting easily occur
Have influence on the aspects such as attention, sensation, consciousness, thinking, judgement, decision and the motion of driver, even if drive more than 4 hours it is tired
Please sail, it is necessary to can just continue to drive after resting more than 20 minutes, the monitoring to fatigue driving is just particularly important.
At present, the monitoring to fatigue driving is broadly divided into time supervision, mileage monitoring and to driver's condition
Monitoring.Wherein time supervision is mainly the monitoring to the vehicle drive time, such as after vehicle travels 4 hours, driver is entered
Row is reminded, monitoring of the mileage monitoring mainly to vehicle drive mileage, such as after vehicle travels 200 kilometers, driver is entered
Row is reminded, and the monitoring to driver's condition is mainly monitored using sensor to the pupil of driver, is judged with this
Driver whether fatigue driving.Time supervision and mileage monitoring can not subjective explanation driver whether fatigue driving, for difference
Driver do not have versatility, and when driver needs wearing spectacles to be driven, the pupil of driver is monitored
Larger error is then had, easily causes erroneous judgement.
The content of the invention
In order to overcome above mentioned problem, the present invention provides a kind of fatigue driving recognition methods, driven during straight-line travelling
Person is most also easy to produce sense tired out, therefore, the present invention using driving path test module, fatigue driving test module, control device and
Triggers circuit, its straight line traveling during, by the test to driver's heartbeat with judge driver whether fatigue driving.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, the fatigue driving recognition methods bag
Include：Initialization step, driving path image acquisition step, driving path image procossing, analytical procedure, driver's heartbeat collection step
Suddenly, fatigue driving judgment step；
The fatigue driving recognition methods comprises the following steps：
Step 1：Initialization step, control device connect driving path test module, fatigue driving respectively by serial communication line
Test module and triggers circuit, the driving path test module include image collecting device and data processing equipment, the figure
As harvester is installed on the vehicle front, the fatigue driving test module includes heartbeat detection device and warning device,
The triggers circuit electrically connects with the heartbeat detection device and the warning device respectively；
Step 2：Driving path image acquisition step, the control device control described image harvester gather the vehicle and existed
Front-end image signal during traveling, and described image signal is transmitted to the data processing equipment, the data processing dress
Put and denoising, contour extraction processing are carried out to described image signal；
Step 3：Driving path image procossing, analytical procedure, the picture signal after processing is transmitted to the control device, passed through
Picture signal after processing judge the vehicle whether straight-line travelling, if straight-line travelling, then described in the control device instruction
Triggers circuit produces low level trigger signal, and the low level trigger signal is transmitted to the fatigue driving test module,
To open the fatigue driving test module, and step 4 is carried out, if not straight-line travelling, then repeat the above steps 2；
Step 4：Driver's heartbeat acquisition step, the heartbeat detection device start to detect driver's heartbeat signal, and by described in
Heartbeat signal is transmitted to the control device；
Step 5：Fatigue driving judgment step, the control device see if fall out default heartbeat model according to the heartbeat signal
Enclose, if without departing from the default heartbeat scope, repeating said steps 4, the control if beyond the default heartbeat scope
Device indicates that the triggers circuit produces high trigger signal, and the high trigger signal is transmitted to the alarm and filled
Put, meanwhile, speed is limited in safe range by the control device, the warning device produces sound and light alarm signal.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, the fatigue driving test module is set
It is placed on the steering wheel for vehicle, by perceiving driver's pulse to obtain driver's heartbeat signal.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, the default heartbeat scope be less than
50 beats/min or more than 110 beats/min.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, described image harvester includes CCD
Image acquiring sensor and video capture card.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, described image harvester is installed on
On the vehicle front axis.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, the vehicle is judged in the step 3
Whether the method for straight-line travelling comprises the following steps：
Step 31：Use described image harvester collection road void/real diagram picture；
Step 32：The contours extract of the road void/real diagram picture is come out using the data processing equipment；
Step 33：The profile information of the road void/real diagram picture is transmitted to the control device, if the road is empty/real
If the contour line of line image is vertical with the vehicle front, the control device judges its straight line traveling, if described
If the contour line of road void/real diagram picture and the vehicle front out of plumb, the control device judge the vehicle not with
Straight-line travelling.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, the heartbeat detection device includes the
One resistance, second resistance, 3rd resistor, power supply, photoelectrical coupler and triode, first resistor one end connection signal input
End, the other end are connected with the base stage of the triode, and one end of the second resistance is connected with the colelctor electrode of the triode, separately
One end is connected with the power supply, and the emitter stage of the triode is connected with the positive pole of the light emitting diode of the photoelectrical coupler,
Described 3rd resistor one end connects the colelctor electrode of the phototriode of the photoelectrical coupler, and the other end is connected with the power supply,
The current collection of the phototriode of the photoelectrical coupler extremely heartbeat signal output end, and photoelectrical coupler is grounded.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, the heartbeat detection device is arranged on
On the steering wheel for vehicle, vehicle driver's finger contacts the heartbeat detection device in driving procedure, is obtained with this described
The heartbeat signal of driver.
Fatigue driving recognition methods according to an embodiment of the invention, wherein, the data processing equipment is to institute
When stating the image progress contour extraction processing of image acquisition device, the energy of image is calculated first, wherein,For custom parameter, span 0-1,For in image outline
Portion's average gray value,For average gray value outside image outline,For averaged curve function,, whereinFor custom parameter；Then the maximum of image energy is asked for, is calculated with thisValue, maximum image zooming-out profile is finally reached to energy.
Brief description of the drawings
Fig. 1 is a kind of real-time driving fatigue monitoring system schematic diagram of the present invention；
Fig. 2 is the heartbeat detection device circuit figure of the present invention.
Reference：
R1：First resistor；R2：Second resistance；R3：3rd resistor；VCC：Power supply；T2：Photoelectrical coupler；T1：Triode；
Vin：Signal input part；Vout：Signal output part.
Embodiment
Fatigue driving recognition methods of the present invention is described in detail with reference to the accompanying drawings and examples.
As illustrated in fig. 1 and 2, the present invention provides a kind of fatigue driving recognition methods, and driver is most during straight-line travelling
Sense tired out is also easy to produce, therefore, the present invention utilizes driving path test module, fatigue driving test module, control device and triggering
Circuit, its straight line traveling during, by the test to driver's heartbeat with judge driver whether fatigue driving.
As shown in figure 1, real-time driving fatigue monitoring system includes：Driving path test module, fatigue driving test module, control
Device and triggers circuit；
Driving path test module includes image collecting device and data processing equipment, wherein, image collecting device is installed on car
Front end, image collecting device are used for collection vehicle front-end image signal, and picture signal is transmitted to number in the process of moving
According to processing unit, data processing equipment carries out denoising, contour extraction processing to picture signal, and the picture signal after processing is passed
Transport to control device, by the picture signal after processing judge the vehicle whether straight-line travelling, if straight-line travelling, then control
Device instruction triggers circuit produces low level trigger signal, and low level trigger signal is transmitted to fatigue driving test module,
To open fatigue driving test module, if not straight-line travelling, then triggers circuit does not produce trigger signal；
Fatigue driving test module includes heartbeat detection device and warning device, wherein, heartbeat detection device, which is used to detect, to be driven
Person's heartbeat signal, and heartbeat signal is transmitted to control device, control device the default heart is seen if fall out according to heartbeat signal
Scope is jumped, control device instruction triggers circuit produces high trigger signal if beyond default heartbeat scope, and by high level
Trigger signal is transmitted to warning device, meanwhile, speed is limited in safe range by control device, warning device produces sound and light alarm
Signal.
Fatigue driving recognition methods comprises the following steps：
Step 1：Initialization step, control device connect driving path test module, fatigue driving respectively by serial communication line
Test module and triggers circuit, driving path test module include image collecting device and data processing equipment, image collector
Put and be installed on the vehicle front, fatigue driving test module includes heartbeat detection device and warning device, triggers circuit difference
Electrically connected with heartbeat detection device and warning device；
Step 2：Driving path image acquisition step, vehicle described in control device control image acquisition device are running over journey
Middle front-end image signal, and picture signal is transmitted to data processing equipment, data processing equipment picture signal is carried out denoising,
Contour extraction processing；
Step 3：Driving path image procossing, analytical procedure, the picture signal after processing is transmitted to control device, pass through processing
Picture signal afterwards judge vehicle whether straight-line travelling, if straight-line travelling, then control device instruction triggers circuit produces low electricity
Flat trigger signal, and low level trigger signal is transmitted to fatigue driving test module, to open fatigue driving test module, and
Continue step 4, if not straight-line travelling, then repeat the above steps 2；
Step 4：Driver's heartbeat acquisition step, heartbeat detection device start to detect driver's heartbeat signal, and by heartbeat signal
Transmit to control device；
Step 5：Fatigue driving judgment step, control device sees if fall out default heartbeat scope according to heartbeat signal, if not
Beyond default heartbeat scope, then 4 are repeated the above steps, control device instruction triggers circuit produces if beyond default heartbeat scope
High trigger signal, and high trigger signal is transmitted to warning device, meanwhile, speed is limited in safety by control device
Scope, warning device produce sound and light alarm signal.
Fatigue driving test module is arranged on steering wheel for vehicle, by perceiving driver's pulse to obtain driver's heartbeat
Signal.
Default heartbeat scope is less than 50 beats/min or more than 110 beats/min.
Image collecting device includes ccd image collection sensor and video capture card.
Image collecting device is installed on vehicle front axis.
Vehicle on road when travelling, if straight-line travelling, then road void/real diagram of image acquisition device as
Contour line is vertical with vehicle front, if not straight-line travelling, then road void/solid line image contour line of image acquisition device
With vehicle front out of plumb, by road void/real diagram picture come judge vehicle whether the applicable various road conditions of straight-line travelling, and sentence
Disconnected result is more accurate.
Judge whether the method for straight-line travelling comprises the following steps vehicle in step 3：
Step 31：Use image acquisition device road void/real diagram picture；
Step 32：The contours extract of road void/real diagram picture is come out using data processing equipment；
Step 33：The profile information of road void/real diagram picture is transmitted to control device, if the profile of road void/real diagram picture
If line is vertical with vehicle front, control device judges that its straight line travels, if if the contour line and car of road void/real diagram picture
Front end out of plumb, then control device judge vehicle not with straight-line travelling.
Heartbeat detection device includes first resistor R1, second resistance R2,3rd resistor R3, power supply VCC, photoelectrical coupler T2
With triode T1, first resistor R1 one end connection signal input part Vin, the other end is connected with triode T1 base stage, the second electricity
Resistance R2 one end is connected with triode T1 colelctor electrode, and the other end is connected with power supply VCC, triode T1 emitter stage and photoelectricity coupling
The positive pole of clutch T2 light emitting diode is connected, the current collection of 3rd resistor R3 one end connection photoelectrical coupler T2 phototriode
Pole, the other end are connected with power supply VCC, the current collection extremely signal output part Vout, and light of photoelectrical coupler T2 phototriode
Electric coupler is grounded.
Heartbeat detection device is arranged on steering wheel for vehicle, and vehicle driver's finger contacts heartbeat detection in driving procedure
Device, the heartbeat signal of driver is obtained with this.
Data processing equipment calculates image first when the image to image acquisition device carries out contour extraction processing
Energy, wherein,For custom parameter, span 0-1,For figure
Picture contoured interior average gray value,For average gray value outside image outline,For averaged curve function,, whereinFor custom parameter；Then the maximum of image energy is asked for, is calculated with thisValue, maximum image zooming-out profile is finally reached to energy.
It should be noted last that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although ginseng
The present invention is described in detail according to embodiment, it will be understood by those within the art that, to the technical side of the present invention
Case is modified or equivalent substitution, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right among.
Claims (9)
1. a kind of fatigue driving recognition methods, it is characterised in that the fatigue driving recognition methods comprises the following steps：
Step 1：Initialization step, control device connect driving path test module, fatigue driving respectively by serial communication line
Test module and triggers circuit, the driving path test module include image collecting device and data processing equipment, the figure
As harvester is installed on the vehicle front, the fatigue driving test module includes heartbeat detection device and warning device,
The triggers circuit electrically connects with the heartbeat detection device and the warning device respectively；
Step 2：Driving path image acquisition step, the control device control described image harvester gather the vehicle and existed
Front-end image signal during traveling, and described image signal is transmitted to the data processing equipment, the data processing dress
Put and denoising, contour extraction processing are carried out to described image signal；
Step 3：Driving path image procossing, analytical procedure, the picture signal after processing is transmitted to the control device, passed through
Picture signal after processing judge the vehicle whether straight-line travelling, if straight-line travelling, then described in the control device instruction
Triggers circuit produces low level trigger signal, and the low level trigger signal is transmitted to the fatigue driving test module,
To open the fatigue driving test module, and step 4 is carried out, if not straight-line travelling, then repeat the above steps 2；
Step 4：Driver's heartbeat acquisition step, the heartbeat detection device start to detect driver's heartbeat signal, and by described in
Heartbeat signal is transmitted to the control device；
Step 5：Fatigue driving judgment step, the control device see if fall out default heartbeat model according to the heartbeat signal
Enclose, if without departing from the default heartbeat scope, repeating said steps 4, the control if beyond the default heartbeat scope
Device indicates that the triggers circuit produces high trigger signal, and the high trigger signal is transmitted to the alarm and filled
Put, meanwhile, speed is limited in safe range by the control device, the warning device produces sound and light alarm signal.
2. fatigue driving recognition methods according to claim 1, it is characterised in that the fatigue driving test module is set
In on the steering wheel for vehicle, by perceiving driver's pulse to obtain driver's heartbeat signal.
3. fatigue driving recognition methods according to claim 1, it is characterised in that the default heartbeat scope is less than 50
Beat/min or more than 110 beats/min.
4. fatigue driving recognition methods according to claim 1, it is characterised in that described image harvester includes CCD
Image acquiring sensor and video capture card.
5. fatigue driving recognition methods according to claim 1, it is characterised in that described image harvester is installed on institute
State on vehicle front axis.
6. fatigue driving recognition methods according to claim 1, it is characterised in that the vehicle is judged in the step 3
Whether the method for straight-line travelling comprises the following steps：
Step 31：Use described image harvester collection road void/real diagram picture；
Step 32：The contours extract of the road void/real diagram picture is come out using the data processing equipment；
Step 33：The profile information of the road void/real diagram picture is transmitted to the control device, if the road is empty/real
If the contour line of line image is vertical with the vehicle front, the control device judges its straight line traveling, if described
If the contour line of road void/real diagram picture and the vehicle front out of plumb, the control device judge the vehicle not with
Straight-line travelling.
7. fatigue driving recognition methods according to claim 1, it is characterised in that the heartbeat detection device includes first
Resistance, second resistance, 3rd resistor, power supply, photoelectrical coupler and triode, first resistor one end connection signal input
End, the other end are connected with the base stage of the triode, and one end of the second resistance is connected with the colelctor electrode of the triode, separately
One end is connected with the power supply, and the emitter stage of the triode is connected with the positive pole of the light emitting diode of the photoelectrical coupler,
Described 3rd resistor one end connects the colelctor electrode of the phototriode of the photoelectrical coupler, and the other end is connected with the power supply,
The current collection of the phototriode of the photoelectrical coupler extremely heartbeat signal output end, and the photoelectrical coupler is grounded.
8. fatigue driving recognition methods according to claim 1, it is characterised in that the heartbeat detection device is arranged on institute
State on steering wheel for vehicle, vehicle driver's finger contacts the heartbeat detection device in driving procedure, and described drive is obtained with this
The heartbeat signal for the person of sailing.
9. fatigue driving recognition methods according to claim 1, it is characterised in that the data processing equipment is to described
When the image of image acquisition device carries out the contour extraction processing, the energy of image is calculated first,, wherein,For custom parameter, span 0-1,For the average ash in image outline inside
Angle value,For average gray value outside image outline,For averaged curve function,, its
InFor custom parameter；Then the maximum of image energy is asked for, is calculated with thisFor value, finally reach maximum to energy
Image zooming-out profile.
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| CN201711199593.9A CN107890351A (en) | 2017-11-26 | 2017-11-26 | A kind of fatigue driving recognition methods |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110371133A (en) * | 2019-06-28 | 2019-10-25 | 神龙汽车有限公司 | Fatigue of automobile driver detection system and method |
| US10972817B2 (en) | 2019-02-25 | 2021-04-06 | Huawei Technologies Co., Ltd. | Topology processing method, apparatus, and system |
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| CN202183154U (en) * | 2011-07-26 | 2012-04-04 | 山东大学 | Anti-fatigue driving early warning system |
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| US6172600B1 (en) * | 1996-08-29 | 2001-01-09 | Aisin Seiki Kabushiki Kaisha | Vehicle condition detecting apparatus |
| CN1874910A (en) * | 2003-11-05 | 2006-12-06 | 戴姆勒·克莱斯勒股份有限公司 | Active lane assistant |
| CN1670480A (en) * | 2004-03-19 | 2005-09-21 | 三菱扶桑卡客车公司 | Vehicle running state determining device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US10972817B2 (en) | 2019-02-25 | 2021-04-06 | Huawei Technologies Co., Ltd. | Topology processing method, apparatus, and system |
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Application publication date: 20180410 |