CN103863187B - Driver alert's device - Google Patents
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- CN103863187B CN103863187B CN201310757281.0A CN201310757281A CN103863187B CN 103863187 B CN103863187 B CN 103863187B CN 201310757281 A CN201310757281 A CN 201310757281A CN 103863187 B CN103863187 B CN 103863187B
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- 238000000034 method Methods 0.000 claims abstract description 41
- 238000012544 monitoring process Methods 0.000 claims description 14
- 206010013486 Distractibility Diseases 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 6
- 230000002045 lasting effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 210000003128 head Anatomy 0.000 description 12
- 238000004590 computer program Methods 0.000 description 9
- 239000011521 glass Substances 0.000 description 6
- 230000006399 behavior Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Abstract
The present invention relates to driver alert's device.Specifically, it is provided that a kind of driver alert's system, it includes the computer processor being arranged in vehicle.Described computer processor is configured to during driving event receive driver attention's data by vehicle network.Described computer processor performs logic to process driver attention's data and to assess driver attention's data for trigger event.Described system also includes the steering wheel unit being arranged in vehicle, and the light source on the surface towards front windshield of the steering wheel being integrated in described steering wheel unit.These light sources position at a certain angle, in order to reflected light by the front windshield of vehicle.Described system also includes the controller being arranged in steering wheel unit.Described controller these light sources communicatively coupled and vehicle network.Described controller receives request from computer processor, to activate described light source when trigger event occurs.
Description
Technical field
The present invention relates to vehicle control system, and relate more specifically to driver alert's system and method.
Background technology
Driving of diverting one's attention can be defined as operator his or her attention is not all placed on road or
Person is placed on the behavior in any condition of the ability that may affect the his or her destination that arrives safe and sound.Some cars
Manufacturer has been mounted with some type of driver distraction's system in their vehicle, such as, collect behaviour
The monitoring device of the motion of work person's eyes and/or head, or lack the prison of the motion of operator's eyes and/or head
Control equipment, to determine whether operator diverts one's attention.These systems utilize various mean to warn to operator,
Such as cluster signal lights (cluster tell tales), head up displays (HUD) and/or haptic seating warn.
Although these systems potentially contribute to reboot back on road the attention of driver, but frequently make
In the case of with, they are probably some interference.
Use the relatively low caution system of annoyance level by the attention weight of driver accordingly, it is desirable to provide a kind of
Newly lead back to the mode on road.
Summary of the invention
In one exemplary embodiment of the present invention, it is provided that driver alert's system of a kind of vehicle.Institute
The system of stating includes the computer processor being arranged in vehicle.Described computer processor is configured to driving thing
Driver attention's data are received by vehicle network during part.Described system also includes can be by computer
The logic that reason device performs, to process driver attention's data and to note for trigger event to assess driver
Force data.Described system also includes the steering wheel unit being arranged in vehicle, and is integrated in described steering wheel
Light source on the surface towards front windshield of the steering wheel of unit.Position these light sources at a certain angle,
To be reflected light by the front windshield of vehicle.Described system also includes the control being arranged in steering wheel unit
Device processed.Described controller is communicatively coupled to these light sources and vehicle network.Described controller is at computer
Reason device receives request, to activate these light sources when trigger event occurs.
In another exemplary embodiment of the present invention, it is provided that a kind of method warning vehicle driver.
Described method includes: via the computer processor being arranged in vehicle by vehicle net during driving event
Network receives driver attention's data.When determining that trigger event occurs by driver attention's data,
Described method includes transmiting a request to controller with activating light source, and described light source is configured to warn the operation of vehicle
Member.These light sources are integrated on the surface towards front windshield of steering wheel.Position these at a certain angle
Light source, in order to reflected light towards operator by the front windshield of vehicle.
In another exemplary embodiment of the present invention, it is provided that a kind of computer warning vehicle driver
Program product.Described computer program includes storage medium, comprises computer-readable instruction wherein,
Described computer-readable instruction makes described computer processor realize one side when being performed by computer processor
Method.Described method receives driver attention's data by vehicle network during being included in driving event.Logical
Cross driver attention's data and determine when trigger event occurs, described method include transmiting a request to controller with
Activating light source, described light source is configured to warn the operator of vehicle.Described light source be integrated in steering wheel towards
On the surface of front windshield.Position these light sources at a certain angle, in order to by the front windshield court of vehicle
Light is reflected to operator.
Present invention additionally comprises solution below:
1. driver alert's system of vehicle, including:
Being arranged on the computer processor in described vehicle, described computer processor is configured at driving event
Period receives driver attention's data by vehicle network；
The logic that can be performed by described computer processor, to process described driver attention's data and to be tactile
Send out driver attention's data described in event evaluation；
It is arranged on the steering wheel unit in described vehicle；
Light source on the surface towards front windshield of the steering wheel being integrated in described steering wheel unit, these
Light source positions at a certain angle, in order to reflected light by the front windshield of described vehicle；And
Be arranged on the controller in described steering wheel unit, described controller be communicatively coupled to these light sources and
Described vehicle network, described controller receives request from described computer processor, with in described trigger event
These light sources are activated during generation.
2. the system as described in solution 1, wherein, monitors system from the driver being arranged on described vehicle
System receives described driver attention's data, and described driver attention's data include eye tracking data
With at least one in head position data.
3. the system as described in solution 1, wherein, the first light source in these light sources is with relative to described
The angle that the horizontal axis of steering wheel is the most at 45 ° is arranged, and the secondary light source in these light sources is with relative to institute
Stating horizontal axis angle the most in 90 ° to arrange, the 3rd light source in these light sources is with relative to described level
Axis substantially becomes the angle of 135 ° to arrange.
4. the system as described in solution 1, wherein, described logic is configured to ambient lighting condition
Regulate the intensity level of these light sources.
5. the system as described in solution 1, wherein, described logic is configured to interval and glisteningly beats on an off
Close these light sources.
6. the system as described in solution 1, wherein, described logic is configured within a period of time monitor institute
State driver attention's data, and show, in described driver attention's data, the attention that driver is lasting
The color of these light sources is changed during dispersion.
7. the system as described in solution 1, wherein, described computer processor defines described vehicle
A part for active safety electronic control unit.
8. the method warning vehicle driver, including:
Connect by vehicle network via the computer processor being arranged in described vehicle during driving event
Receive driver attention's data；
When determining that trigger event occurs by described driver attention's data, transmit a request to controller with
Activating light source, these light sources are configured to warn the operator of described vehicle, these light sources to be integrated in steering wheel
On the surface of front windshield, these light sources position at a certain angle, in order to by the front of described vehicle
Wind glass reflects light towards described operator.
9. the method as described in solution 8, wherein, monitors system from the driver being arranged on described vehicle
System receives described driver attention's data, and described driver attention's data include eye tracking number
According to at least one in head position data.
10 methods as described in solution 8, wherein, the first light source in these light sources is with relative to described
The angle that the horizontal axis of steering wheel is the most at 45 ° is arranged, and the secondary light source in these light sources is with relative to institute
Stating horizontal axis angle the most in 90 ° to arrange, the 3rd light source in these light sources is with relative to described level
Axis substantially becomes the angle of 135 ° to arrange.
11. methods as described in solution 8, farther include:
The intensity level of these light sources is regulated based on ambient lighting condition.
12. methods as described in solution 8, farther include:
Interval glisteningly opens and closes these light sources.
13. methods as described in solution 8, farther include:
Described driver attention's data are monitored within a period of time, and in described driver attention's data
Show to change during the lasting distractibility of described operator the color of these light sources.
14. methods as described in solution 8, wherein, described computer processor forms the master of described vehicle
A part for dynamic secure electronic control unit.
15. 1 kinds of computer programs, including realizing the computer-readable recording medium of instruction thereon,
When being performed by the computer processor being arranged in vehicle, described computer processor is made to realize a kind of method,
Described method includes:
Driver attention's data are received by vehicle network during driving event；
When determining that trigger event occurs by described driver attention's data, transmit a request to controller with
Activating light source, these light sources are configured to warn the operator of described vehicle, these light sources to be integrated in steering wheel
On the surface of front windshield, these light sources position at a certain angle, in order to by the front of described vehicle
Wind glass reflects light towards described operator.
16. computer programs as described in solution 15, wherein, from being arranged on described vehicle
Driver's monitoring system receives described driver attention's data, and described driver attention's data include
At least one in eye tracking data and head position data.
17. computer programs as described in solution 15, wherein, the first light source in these light sources
Arrange with the angle the most at 45 ° relative to the horizontal axis of described steering wheel, the second light in these light sources
Source is arranged with the angle the most in 90 ° relative to described horizontal axis, and the 3rd light source in these light sources is with phase
The angle described horizontal axis substantially being become to 135 ° is arranged.
18. computer programs as described in solution 15, wherein, described method farther includes:
The intensity level of these light sources is regulated based on ambient lighting condition.
19. computer programs as described in solution 15, wherein, described method farther includes:
Interval glisteningly opens or closes these light sources.
20. computer programs as described in solution 15, wherein, described method farther includes:
Described driver attention's data are monitored within a period of time, and in described driver attention's data
Show to change during the lasting distractibility of described operator the color of these light sources.
By detailed description of the present invention below in conjunction with the accompanying drawings, the features described above of the present invention and advantage and its
He is apparent from feature and advantage.
Accompanying drawing explanation
The most by way of example, below in the detailed description of embodiment, embody other features, excellent
Point and details, described detailed description with reference to accompanying drawing, in the accompanying drawings:
Fig. 1 is can to realize the block diagram of system of driver alert in an embodiment by it；
Fig. 2 shows the figure of compartment and steering wheel unit, in an embodiment can by described steering wheel unit
To realize driver alert；And
Fig. 3 depicts the flow chart of the process realizing driver alert in an embodiment.
Detailed description of the invention
Explained below is merely exemplary in itself, is not meant to limit the present invention, its application
Or use.It should be understood that corresponding reference represents identical or corresponding part in whole accompanying drawings
And feature.
Exemplary embodiment according to the present invention, it is provided that driver alert's system and method.Described driver
Attention device provides a kind of means and attracts to divert one's attention to drive in the way of existing caution system more less forces to compare
The attention of the person of sailing.Described driver alert's system includes the light source being installed on steering wheel, and described light source is installed
On the side towards front windshield of steering wheel, or be integrated in steering wheel towards front windshield
Side.When determining that described driver may divert one's attention, described light source is activated.These light sources are at a certain angle
Location so that the light that they send is reflected towards eyes or the face of driver by front windshield, thus warns
Driver is by the his or her road focusing on front.Driver alert system be will now be described
These features and other features.
Turning now to Fig. 1, the system 100 of driver alert can be realized describing by it.System 100 is wrapped
Include computer processor 102, driver's monitoring system 104 and steering wheel unit 106, the most logical
It is couple to vehicle network 108 letter.
Computer processor 102 can be implemented as, such as: special IC (ASIC), electronic circuit,
Or processor (shared, special or groups of).Computer processor 102 performs logic 110, described
Logic can be one or more softwares or firmware program, combinational logic circuit, and/or provides described function
Other suitable components.Logic 110 processes driver attention's data and assesses described data to determine whether
There occurs trigger event.Logic 110 can be stored in the storage device 112 of vehicle.
Storage device 112 can include any kind of memorizer, such as, harddisk memory, virtual memory
Device, random access memory and cache memory.
Driver's monitoring system 104 includes sensor, the attention of described Sensor monitoring driver.In reality
Executing in example, driver's monitoring system 104 is carried out head position and/or eye motion by digital camera
Tracking, described digital camera be combined with infrared sensor (such as, charge-coupled image sensor (CCD) or
Complementary metal oxide semiconductors (CMOS) (COMS)).Driver's monitoring system 104 can be integrated in vehicle instrument
On dial plate (vehicle cluster) (not shown) or steering wheel unit 106.If realized at meter panel of motor vehicle
On, then driver's monitoring system 104 is communicatively coupled to computer processor 102 by vehicle network 108.
In an embodiment, driver's monitoring system 104 sends driver attention's data to calculating by network 108
Machine processor 102.Driver attention's data can be the original number by digital camera and sensor acquisition
According to, such as, eyes and/or the exercise data of the position data of head, eyes and/or head, or their group
Close.Driver's monitoring system 104 can gather driver attention during the process of driving cycle continuously
Data.
Steering wheel unit 106 includes steering wheel and axle.The communicatively coupled steering wheel of driver alert's equipment 114
Unit 106.Driver alert's equipment 114 includes the controller being communicatively coupled to light source.Described controller can
To be realized by hardware, software or combinations thereof.Described light source can be by light emitting diode (LED)
Realize, and it can be a kind of color or multiple color.Described controller is configured at computer
Reason device 102 receive request, to activate described light source when trigger event occurs, as be described herein that
Sample.
Network 108 integrates with vehicle, and can be following every or following every part,
Described every include: physics cable network, wireless network, or combinations thereof.In one embodiment,
Network 108 can be LAN, and described LAN is by the electronic unit of vehicle and computer processor 102
Communicatively coupled together.If network 108 is a part for cable network, then network 108 can wrap
Include one or more serial data bus or other data cube computation.
It is in operation, the motion of driver's monitoring device 104 policer operation person's head and/or the position of eyes,
And send initial data to computer processor 102.The logic 110 performed on computer processor 102
Assess described data to determine whether to there occurs trigger event.In an embodiment, trigger event can be defined as:
Within the time period limited, the eyes of operator or head deviate from the threshold of the angle of face forward relative to vehicle
Value time total amount.Such as, in the time interval of 5 seconds, the eyes of operator or head deviate from towards front
The position of side has amounted to 3 seconds.Alternatively, described trigger event can be defined as: in the time limited
In section, operator is from the threshold number of his/her attention of the position transfer of face forward.It being understood that
Any kind of standard illustrating event of diverting one's attention can be used to define described trigger event.Thered is provided is upper
Stating example is for convenience of description, and should not be construed as limiting the scope.
Turning now to Fig. 2, description is included the figure in the compartment 200 of steering wheel unit 106, wherein passes through direction
Dish unit 106 can realize driver alert.
Driver's cabin includes front windshield 202, steering wheel unit 106 and is sitting in the driver side seat of vehicle
In vehicle operator 220.As in figure 2 it is shown, three light source 204a-204c are integrated in steering wheel unit 106
Steering wheel 206 in.Light source 204a-204c is arranged on the side towards front windshield of steering wheel 206
On 208.Although Fig. 2 shows three light source 204a-204c, it is to be understood that, in order to realize implementing
The advantage of example, can be implemented greater or lesser number of light source by driver alert's system.In exemplary enforcement
In example, three light sources 204a, 204b install three different circumferential positions or side on the steering wheel with 204c
At Wei.First light source 204a is arranged with the angle the most at 45 ° relative to horizontal axis 210, horizontal axis
210 intersect with the diameter of steering wheel 206.Secondary light source 204b is substantially to become 90 relative to horizontal axis 210
° angle arrange, the 3rd light source 204c is arranged substantially becoming the angle of 135 ° relative to horizontal axis 210.
These positions are also known respectively as ten o'clock position, twelve-hour position and two o'clock position
Arrange these light sources by these positions on steering wheel 206, proceed to navigation at steering wheel 206
During curve, described driver alert's system make least one set light source be in place in, in order to by front windshield glass
Glass 202 reflects.Additionally, due to the both hands of operator can not cover more than two position simultaneously,
Therefore there are three light sources eliminate the hands of operator and can cover unintentionally the probability of these light sources, otherwise this
Plant probability to be reflected off from front windshield 202 by obstruction light.
As indicated above, light source 204a-204c is positioned on the circumferential position of steering wheel 206 at a certain angle,
So that the light sent from these light sources is reflected towards the face of operator by front windshield 202.For light source
The special angle that 204a-204c selects will partly depend on the existing angle of front windshield.Light source 204a-204c
It is configurable to launch the light of a kind of color, or can be the light of multiple color.
The controller of driver alert's system 114 can be integrated in steering wheel 206 or in steering wheel shaft.
In an embodiment, logic 110 is configurable to activating light source 204a-204c as continuous print light stream, or can
Light source 204a-204c is glisteningly opened and closed with interval.Additionally, logic 110 is configurable to based on environment
Illuminating position regulates the intensity level of light source 204a-204c.Such as, during the time by day, logic
110 may indicate that controller to flash the light of high intensity, and during the time at night, logic 110 can refer to
Show that controller flashes low intensive light.In another embodiment, logic 110 is configured to monitoring from driving
Driver attention's data of member's monitoring system 104, and change based on the lasting distractibility of driver
The color of described light source 204a-204c is (such as, if these light source scintillation white lights the most do not change driving three times
The distractibility situation of member, then these light sources will flash HONGGUANG to obtain the attention of driver).
Turning now to Fig. 3, the flow process showing the process 300 realizing driver alert will be described in an embodiment
Figure.
In step 302, light source 204a-204c be installed in or be integrated in steering wheel 206 towards front windshield glass
On the side 208 of glass.
In step 304, positioned light source 204a-204c at a certain angle, in order to by front windshield 202 towards
Eyes or the face of operator 220 reflect light.
In step 306, computer processor 102 receives from driver's monitoring system 104 during driving event
Driver attention's data.
In step 308, logic 110 assesses described driver attention's data to determine whether to there occurs triggering thing
Part.Described trigger event means that driver drives under state of diverting one's attention.
In step 310, logic determines whether to there occurs trigger event.If it is not, then process 300 returns step
306, and computer processor 102 continues to driver attention's data.Otherwise, if it occur that touch
The event of sending out, then logic 110 indicates the controller of driver alert's equipment 114 to activate (or unlatching) light source
204a-204c.Then, process 300 returns step 306, and wherein computer processor 102 continues to drive
The person's of sailing attention data
The method have technical effect that and provide such driver alert's system 200, it is with compared to existing
The mode that caution system less forces attracts to divert one's attention the attention of driver.Driver alert's system 200
It is arranged on steering wheel 206 including the light source 204a-204c, described light source 204a-204c being installed on steering wheel
On the side of front windshield or be integrated in this side.When determining that driver may divert one's attention, light source
204a-204c is activated.Light source 204a-204c positions at a certain angle so that they light of sending by
Front windshield reflects towards eyes or the face of driver, and thus alerting drivers is primarily focused on front
Road on.
As set forth above, it is possible to come with the form of computer implemented process and apparatuses for practicing those processes
Realize the present invention.Embodiments of the invention can also be to realize the computer comprising instruction on tangible medium
The form of program code realizes, described tangible medium such as floppy disk, compact disc-read only memory CD-ROM, hard
Disk drive or any other computer-readable recording medium, wherein, be loaded at computer and perform computer
During program code, described computer becomes puts into practice assembly of the invention.Embodiments of the invention can also by terms of
The form of calculation machine program code realizes, and such as, no matter is stored in storage medium, by computer be loaded into and/
Or perform, by some transmission medium (such as by electric wire or cable, by optical fiber or pass through electromagnetic radiation)
Transmitting, wherein, when being loaded into by computer and performing described computer program code, described computer becomes
Put into practice assembly of the invention.When realizing on a general purpose microprocessor, the configuration of described computer program code segments is micro-
Processor is to create specific logic circuit.
Although the present invention is described with reference to exemplary embodiment, but those skilled in the art can manage
Solve, without departing from the present invention, various change can be carried out and equivalent can be utilized
Thing substitutes its element.Additionally, in the case of without departing from essential scope of the present invention, many amendments can be carried out,
So that the teachings of the present invention adapts to specific situation or material.Therefore, the invention is intended to be not only restricted to disclosed
Specific embodiment, but the present invention should include all embodiments of falling within the scope of the present invention.
Claims (14)
1. driver alert's system of vehicle, including:
Being arranged on the computer processor in described vehicle, described computer processor is configured to during driving event receive driver attention's data by vehicle network；
The logic that can be performed by described computer processor, to process described driver attention's data and to assess described driver attention's data for trigger event；
It is arranged on the steering wheel unit in described vehicle；
Light source on the surface towards front windshield of the steering wheel being integrated in described steering wheel unit, these light sources position at a certain angle, in order to reflected light by the front windshield of described vehicle；And
Being arranged on the controller in described steering wheel unit, described controller is communicatively coupled to these light sources and described vehicle network, and described controller receives request from described computer processor, to activate these light sources when described trigger event occurs.
2. the system as claimed in claim 1, wherein, receives described driver attention's data from the driver's monitoring system being arranged on described vehicle, and described driver attention's data includes at least one in eye tracking data and head position data.
3. the system as claimed in claim 1, wherein, the first light source in these light sources is arranged with the angle the most at 45 ° relative to the horizontal axis of described steering wheel, secondary light source in these light sources is arranged with the angle the most in 90 ° relative to described horizontal axis, and the 3rd light source in these light sources is arranged substantially becoming the angle of 135 ° relative to described horizontal axis.
4. the system as claimed in claim 1, wherein, described logic is configured to ambient lighting condition to regulate the intensity level of these light sources.
5. the system as claimed in claim 1, wherein, described logic is configured to interval and glisteningly opens and closes these light sources.
6. the system as claimed in claim 1, wherein, described logic is configured to monitor described driver attention's data within a period of time, and changes the color of these light sources when described driver attention's data show the lasting distractibility of driver.
7. the system as claimed in claim 1, wherein, described computer processor defines a part for the active safety electronic control unit of described vehicle.
8. the method warning vehicle driver, including:
Driver attention's data are received via the computer processor being arranged in described vehicle by vehicle network during driving event；
When determining that trigger event occurs by described driver attention's data, it transmit a request to controller with activating light source, these light sources are configured to warn the operator of described vehicle, these light sources are integrated on the surface towards front windshield of steering wheel, these light sources position at a certain angle, in order to reflected light by the front windshield of described vehicle towards described operator.
9. method as claimed in claim 8, wherein, from the driver's monitoring system being arranged on described vehicle to receive described driver attention's data, and described driver attention's data include at least one in eye tracking data and head position data.
10. method as claimed in claim 8, wherein, the first light source in these light sources is arranged with the angle the most at 45 ° relative to the horizontal axis of described steering wheel, secondary light source in these light sources is arranged with the angle the most in 90 ° relative to described horizontal axis, and the 3rd light source in these light sources is arranged substantially becoming the angle of 135 ° relative to described horizontal axis.
11. methods as claimed in claim 8, farther include:
The intensity level of these light sources is regulated based on ambient lighting condition.
12. methods as claimed in claim 8, farther include:
Interval glisteningly opens and closes these light sources.
13. methods as claimed in claim 8, farther include:
Within a period of time, monitor described driver attention's data, and change the color of these light sources when described driver attention's data show the lasting distractibility of described operator.
14. methods as claimed in claim 8, wherein, described computer processor forms a part for the active safety electronic control unit of described vehicle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/712,134 US9045074B2 (en) | 2012-12-12 | 2012-12-12 | Driver alerts |
| US13/712134 | 2012-12-12 | ||
| US13/712,134 | 2012-12-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103863187A CN103863187A (en) | 2014-06-18 |
| CN103863187B true CN103863187B (en) | 2016-11-30 |
Family
ID=
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689241A (en) * | 1995-04-24 | 1997-11-18 | Clarke, Sr.; James Russell | Sleep detection and driver alert apparatus |
| CN1937763A (en) * | 2005-09-19 | 2007-03-28 | 乐金电子（昆山）电脑有限公司 | Sleepy sensing device for mobile communication terminal and its sleepy driving sensing method |
| CN202345537U (en) * | 2011-11-02 | 2012-07-25 | 曾夏泓 | Driving auxiliary system for automobile |
| WO2012135018A2 (en) * | 2011-03-25 | 2012-10-04 | Tk Holdings Inc. | System and method for determining driver alertness |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689241A (en) * | 1995-04-24 | 1997-11-18 | Clarke, Sr.; James Russell | Sleep detection and driver alert apparatus |
| CN1937763A (en) * | 2005-09-19 | 2007-03-28 | 乐金电子（昆山）电脑有限公司 | Sleepy sensing device for mobile communication terminal and its sleepy driving sensing method |
| WO2012135018A2 (en) * | 2011-03-25 | 2012-10-04 | Tk Holdings Inc. | System and method for determining driver alertness |
| CN202345537U (en) * | 2011-11-02 | 2012-07-25 | 曾夏泓 | Driving auxiliary system for automobile |
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Granted publication date: 20161130 |