CN107507395A - A kind of fatigue driving detecting system and method - Google Patents
A kind of fatigue driving detecting system and method Download PDFInfo
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- CN107507395A CN107507395A CN201611059379.9A CN201611059379A CN107507395A CN 107507395 A CN107507395 A CN 107507395A CN 201611059379 A CN201611059379 A CN 201611059379A CN 107507395 A CN107507395 A CN 107507395A
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/59—Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
- G06V20/597—Recognising the driver's state or behaviour, e.g. attention or drowsiness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
- B60W2040/0818—Inactivity or incapacity of driver
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Business, Economics & Management (AREA)
- Automation & Control Theory (AREA)
- Emergency Management (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Traffic Control Systems (AREA)
- Emergency Alarm Devices (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a kind of fatigue driving detecting system, including camera device, MCU, the alarm device being sequentially connected；The camera device is used to shoot driver, and the video information of shooting is sent into MCU；The MCU be used for the video information is handled, judge driver whether fatigue driving, if so, then controlling the alarm device to send alarm signal；Wherein, the camera device is horizontally set in front of driver's seat, and light source is arranged on the top of the camera device, and the direction of illumination of the light source and the camera device shooting direction are in 30 ° of 60 ° of angles.The fatigue driving detecting system of the present invention is by the way that light source is arranged on above camera device, and ensure that the direction of illumination of light source and camera device shooting direction are in a certain angle, drive safety can be improved, the system is after driver tired driving is judged simultaneously, it is corresponding to take measures, by carrying out the mode such as reminding to driver, driver's dangerous driving is avoided.
Description
Technical field
Car steering field of the present invention, more particularly to a kind of fatigue driving detecting system and method.
Background technology
With the rapid development of economy, the sales volume of automobile also gradually increases.Traffic accident turns into threatens human security
One of important hidden danger, safety traffic depend on many factors, and except vehicle condition, substantial amounts of analysis and research show that driver is tired
Please one of the main reason for being traffic accident is sailed.
At present, driver fatigue detection research method, is roughly divided into following two major class:First, with reference to driver itself behavior
Feature, it is different from abnormal driving state human body behavioural characteristic using normal driving, corresponding detection method is formulated, to enter driving
Carry fatigue detecting.Such as：Face datection, action behavior detection etc.；2nd, with reference to car driving trace road behavioral value, pass through
Sensor or camera carry out catching extraction information, such as：Whether deviation, vehicle exceed the speed limit, more than road mark line etc. for a long time.
Corresponding standard is formulated successively carries out tired judgement.Most of giving fatigue pre-warning system is all to driver " head by camera
Motion " is analyzed, i.e., the head movement of driver is gathered by camera, then is analyzed by analysis of fatigue algorithm, is entered
And differentiating fatigue state, this method is presently most used fatigue detection method.
However, because the driving environment difference such as driver's individual difference and light, road surface is big, most of existing fatigue
Detection algorithm data are all based on what experiment under drive simulating environment came out, and under actual driving environment, False Rate is larger, effect
It is bad.Secondly, the light source position of existing camera device is generally located on the front of face, influences actual algorithm effect.Meanwhile
When infrared lamp is being worked at night, imaging can produce shade and hot spot, and the dazzling feux rouges that light source face face is sent can be to driving
Member forms interference, influences driver safety driving.
The content of the invention
The invention reside in the above-mentioned deficiency for overcoming prior art, there is provided one kind can eliminate interference, improve recognition accuracy,
The high fatigue driving detecting system of security performance and method.
In order to realize foregoing invention purpose, the technical solution adopted by the present invention is：
A kind of fatigue driving detecting system, including camera device, MCU, the alarm device being sequentially connected；
The camera device is used to shoot driver, and the video information of shooting is sent into MCU；The MCU is used for
The video information is handled, judge driver whether fatigue driving, if so, then controlling the alarm device to send alarm
Signal；
Wherein, the camera device is horizontally set in front of driver's seat, and light source is arranged on the top of the camera device, and described
The direction of illumination of light source and the camera device shooting direction are in 30 ° of -60 ° of angles.
Further, the direction of illumination of the light source and the camera device shooting direction are in 45 ° of angles.
Further, the light source is infrared light supply, and the camera device is additionally operable to judge to be irradiated to driver face
Infrared luminous intensity, according to the infrared light intensity adjustment light sensation.
Further, in addition to brake, the control drive device connect the MCU, brake system of car；
The MCU is additionally operable to when judging driver tired driving, and automobile brake is controlled by the drive device.
Further, carrying out processing to the video information includes, and driver's face letter is extracted by the video information
Breath, is calculated frequency of wink, closed-eye time in the facial information, if the result of calculation is below threshold set in advance
Value, then judge driver for fatigue driving.
Present invention simultaneously provides a kind of method for detecting fatigue driving, comprise the following steps：
S1, camera device shooting driver's video information；
S2, the video information is handled,
S3, by the video information extract driver's facial information, frequency of wink, closed-eye time in the facial information are entered
Row calculates, and obtains detecting data；
S4, according to threshold value set in advance and it is described detection data contrasted, when judging driver for fatigue state, then send out
Go out control signal；
Wherein, the camera device is horizontally set in front of driver's seat, and light source is arranged on the top of the camera device, and described
The direction of illumination of light source and the camera device shooting direction are in 30 ° of -60 ° of angles.
Further, the fatigue state includes slight fatigue, depth fatigue；The threshold value includes first threshold, second
Threshold value, wherein, the first threshold is more than the Second Threshold.
Further, the threshold value includes first threshold, Second Threshold, when the detection data are less than the first threshold
And when being more than the Second Threshold, judge that driver for slight fatigue, sends alarm signal.
Further, when the detection data are respectively less than the first threshold and the Second Threshold, driver is judged
For depth fatigue, automobile brake is controlled.
Further, the light source is infrared light supply, and the camera device is additionally operable to judge to be irradiated to driver face
Infrared luminous intensity, according to the infrared light intensity adjustment light sensation.
Compared with prior art, beneficial effects of the present invention
The fatigue driving detecting system of the present invention ensures the direction of illumination of light source by the way that light source is arranged on above camera device
It is in 30 ° of -60 ° of angles with camera device shooting direction so that light source will not shine directly into the eyeball of driver, avoid light
Stimulation to driver, fatigue will not be produced to driver eye, improve the security of driving；On the other hand, penetrated using oblique angle
When entering light, camera device can reduce the interference of hot spot or shade in catoptric imaging, improve accuracy of judgement degree；It is in addition, right
In the driver to wear glasses, system of the invention can reach more preferable effect；The system of the present invention is judging driver fatigue
It is corresponding to take measures after driving, by carrying out the mode such as reminding to driver, avoid driver's dangerous driving.
Brief description of the drawings
Fig. 1 show the fatigue driving detecting system module frame chart of the present invention.
Fig. 2 show the method for detecting fatigue driving flow chart of the present invention.
Embodiment
With reference to embodiment, the present invention is described in further detail.But this should not be interpreted as to the present invention
The scope of above-mentioned theme is only limitted to following embodiment, all models that the present invention is belonged to based on the technology that present invention is realized
Enclose.
Embodiment 1：
Fig. 1 show the present invention fatigue driving detecting system module frame chart, including be sequentially connected camera device, MCU, alarm
Device；
The camera device is used to shoot driver, and the video information of shooting is sent into MCU；The MCU is used for
The video information is handled, judge driver whether fatigue driving, if so, then controlling the alarm device to send alarm
Signal；
Wherein, the camera device is horizontally set in front of driver's seat, and light source is arranged on the top of the camera device, and described
The direction of illumination of light source and the camera device shooting direction are in 30 ° of -60 ° of angles.
The fatigue driving detecting system of the present invention ensures the irradiation of light source by the way that light source is arranged on above camera device
Direction and camera device shooting direction are in 30 ° of -60 ° of angles so that light source will not shine directly into the eyeball of driver, avoid
Stimulation of the light to driver, fatigue will not be produced to driver eye, improve the security of driving；On the other hand, using oblique
When light is injected at angle, camera device can reduce the interference of hot spot or shade in catoptric imaging, improve accuracy of judgement degree；This
Outside, more preferable effect can be reached for the driver to wear glasses, system of the invention；The system of the present invention is judging driver
It is corresponding to take measures after fatigue driving, by carrying out the mode such as reminding to driver, avoid driver's dangerous driving.
In a detailed embodiment, the direction of illumination of the light source presss from both sides with the camera device shooting direction in 45 °
Angle.Preferably, when angle is 45 degree, infrared light supply can be eliminated to greatest extent while facial illumination is increased and passed through
The interference that glasses or eyeball reflective tape come.
In a detailed embodiment, the light source is infrared light supply, and the camera device is additionally operable to judgement and is irradiated to
The infrared luminous intensity of driver face, according to the infrared light intensity adjustment light sensation.
Typically shot using CCD camera, embedded-type ARM main frame is connected to by video input decoder, to inspection
Altimetric image carries out pattern-recognition and processing, and infrared light supply infrared diode can provide again.
The shutter aperture of CCD camera is controlled by light sensation, by judging human face region infrared intensity, carries out adaptive tune
Section so that the infrared composition in border is less than infrared LED, makes CCD image quality higher, and CCD, which is imaged in contrast, more meets detection
Need, on the other hand by this adjustment, it can also exclude glasses and the reflective influence of eyes.With reference to traditional image procossing
With algorithm for pattern recognition, corresponding fatigue detecting is carried out, effect is more preferable compared to existing scheme, can adapt to actual driving ring
Border, there is obvious practical function.
In a detailed embodiment, in addition to brake, the control drive device connect the MCU,
Brake system of car；The MCU is additionally operable to when judging driver tired driving, and automobile system is controlled by the drive device
It is dynamic.
Tired driver is taken measures mainly to include voice reminder, forces to stop the functions such as driving.The MCU is detected
After slight fatigue state, corresponding voice reminder is had, reminds driver handle accordingly and press corresponding button, with
Judge whether driver regains consciousness, and when driver is reactionless for a long time, while fatigue detecting state is depth fatigue, it can enter
Row forces the functions such as flame-out, forced brake.
In a detailed embodiment, carrying out processing to the video information includes, and is extracted by the video information
Driver's facial information, frequency of wink, closed-eye time in the facial information are calculated, if the result of calculation is below
Threshold value set in advance, then judge driver for fatigue driving.
When the slight fatigue of progress makes a distinction with depth fatigue, different conditions or examination criteria progress area can be set
Point, such as meet that one of condition is then determined as slight fatigue, meet that all conditions are then judged as depth fatigue, specifically sentence
Broken strip part can be determined according to actual conditions.
Present invention simultaneously provides a kind of method for detecting fatigue driving, referring to Fig. 2, comprises the following steps：
S1, camera device shooting driver's video information；
S2, the video information is handled；
S3, by the video information extract driver's facial information, frequency of wink, closed-eye time in the facial information are entered
Row calculates, and obtains detecting data；
S4, according to threshold value set in advance and it is described detection data contrasted, when judging driver for fatigue state, then send out
Go out control signal；
Wherein, the camera device is horizontally set in front of driver's seat, and light source is arranged on the top of the camera device, and described
The direction of illumination of light source and the camera device shooting direction are in 30 ° of -60 ° of angles.
In a detailed embodiment, the fatigue state includes slight fatigue, depth fatigue；The threshold value includes the
One threshold value, Second Threshold, wherein, the first threshold is more than the Second Threshold.Wherein, threshold value under fatigue state according to testing
Frequency of wink, depending on closed-eye time.
In a detailed embodiment, the threshold value includes first threshold, Second Threshold, when the detection data are less than
The first threshold and when being more than the Second Threshold, judges that driver for slight fatigue, sends alarm signal.
In a detailed embodiment, when the detection data are respectively less than the first threshold and the Second Threshold
When, judge that driver for depth fatigue, controls automobile brake.
In a detailed embodiment, the light source is infrared light supply, and the camera device is additionally operable to judgement and is irradiated to
The infrared luminous intensity of driver face, according to the infrared light intensity adjustment light sensation.
The embodiment of the present invention is described in detail above in conjunction with accompanying drawing, but the present invention is not restricted to
Embodiment is stated, in the case of the spirit and scope of claims hereof are not departed from, those skilled in the art can make
Go out various modifications or remodeling.
Claims (10)
1. a kind of fatigue driving detecting system, it is characterised in that including the camera device, MCU, alarm device being sequentially connected；
The camera device is used to shoot driver, and the video information of shooting is sent into MCU；The MCU is used for
The video information is handled, judge driver whether fatigue driving, if so, then controlling the alarm device to send alarm
Signal；
Wherein, the camera device is horizontally set in front of driver's seat, and light source is arranged on the top of the camera device, and described
The direction of illumination of light source and the camera device shooting direction are in 30 ° of -60 ° of angles.
2. fatigue driving detecting system according to claim 1, it is characterised in that the direction of illumination of the light source with it is described
Camera device shooting direction is in 45 ° of angles.
3. fatigue driving detecting system according to claim 1, it is characterised in that the light source is infrared light supply, described
Camera device is additionally operable to judge the infrared luminous intensity for being irradiated to driver face, according to the infrared light intensity adjustment light sensation.
4. fatigue driving detecting system according to claim 1, it is characterised in that described also including brake
Drive device is controlled to connect the MCU, brake system of car；The MCU is additionally operable to, when judging driver tired driving, pass through
The drive device controls automobile brake.
5. according to the fatigue driving detecting system described in claim any one of 1-4, it is characterised in that the video information is entered
Row processing includes, and driver's facial information is extracted by the video information, to frequency of wink in the facial information, close one's eyes when
Between calculated, if the result of calculation is below threshold value set in advance, judge driver for fatigue driving.
6. a kind of method for detecting fatigue driving, it is characterised in that comprise the following steps：
S1, camera device shooting driver's video information；
S2, the video information is handled,
S3, by the video information extract driver's facial information, frequency of wink, closed-eye time in the facial information are entered
Row calculates, and obtains detecting data；
S4, according to threshold value set in advance and it is described detection data contrasted, when judging driver for fatigue state, then send out
Go out control signal；
Wherein, the camera device is horizontally set in front of driver's seat, and light source is arranged on the top of the camera device, and described
The direction of illumination of light source and the camera device shooting direction are in 30 ° of -60 ° of angles.
7. method for detecting fatigue driving according to claim 6, it is characterised in that the fatigue state includes slight tired
Labor, depth fatigue；The threshold value includes first threshold, Second Threshold, wherein, the first threshold is more than the Second Threshold.
8. method for detecting fatigue driving according to claim 7, it is characterised in that the threshold value includes first threshold, the
Two threshold values, when the detection data are less than the first threshold and are more than the Second Threshold, judge driver to be slight tired
Labor, send alarm signal.
9. method for detecting fatigue driving according to claim 7, it is characterised in that described in being respectively less than when the detection data
When first threshold and the Second Threshold, judge that driver for depth fatigue, controls automobile brake.
10. method for detecting fatigue driving according to claim 6, it is characterised in that the light source is infrared light supply, described
Camera device is additionally operable to judge the infrared luminous intensity for being irradiated to driver face, according to the infrared light intensity adjustment light sensation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611059379.9A CN107507395A (en) | 2016-11-24 | 2016-11-24 | A kind of fatigue driving detecting system and method |
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| CN201611059379.9A CN107507395A (en) | 2016-11-24 | 2016-11-24 | A kind of fatigue driving detecting system and method |
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| CN201611059379.9A Pending CN107507395A (en) | 2016-11-24 | 2016-11-24 | A kind of fatigue driving detecting system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108597184A (en) * | 2018-05-03 | 2018-09-28 | 江苏新通达电子科技股份有限公司 | Driver tired driving monitoring system and working method, automobile |
| CN108583550A (en) * | 2018-03-02 | 2018-09-28 | 浙江鼎奕科技发展有限公司 | Vehicle automatic braking method and device |
| CN109649357A (en) * | 2019-01-30 | 2019-04-19 | 大连交通大学 | A kind of brake system and method based on iris recognition control |
| CN109767602A (en) * | 2019-03-14 | 2019-05-17 | 钧捷智能（深圳）有限公司 | A kind of round-the-clock driver fatigue monitor system camera |
| CN111754728A (en) * | 2019-03-29 | 2020-10-09 | 京东方科技集团股份有限公司 | Detection assembly, detection device and detection method for fatigue driving |
| CN113911095A (en) * | 2021-11-13 | 2022-01-11 | 安徽江淮汽车集团股份有限公司 | Failure-preventing voice braking system and method |
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| CN113911095A (en) * | 2021-11-13 | 2022-01-11 | 安徽江淮汽车集团股份有限公司 | Failure-preventing voice braking system and method |
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