CN107585162A - A kind of active safety control system and method based on the detection of driver's status image - Google Patents
A kind of active safety control system and method based on the detection of driver's status image Download PDFInfo
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- CN107585162A CN107585162A CN201710766556.5A CN201710766556A CN107585162A CN 107585162 A CN107585162 A CN 107585162A CN 201710766556 A CN201710766556 A CN 201710766556A CN 107585162 A CN107585162 A CN 107585162A
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Abstract
The invention discloses a kind of active safety control system and method based on the detection of driver's status image, its structure includes：Image acquisition device is used to gather driver status image；Image processor is used to handle the driver status image that described image collector collects；And analyze whether driver is in bad steering state, CAN transceiver is used to establish LAN, receives and send signal；MP5 display controllers are used to show driver status and vehicle condition, send alarm, and provide operation interface for whole system；Wheel speed sensors are used to monitor vehicle condition, while vehicle wheel rotational speed is generated into electric signal；Whole-control system VCU is used to receive the signal after the processing of described image processor, and the signal of wheel speed sensors detection, makes comprehensive analysis, and make control to accelerator and brake.Beneficial effects of the present invention include reminding driver to drive with caution in time, and active ramp to stop avoids dangerous generation.
Description
Technical field
The present invention relates to automobile safety system field, more particularly to a kind of master based on the detection of driver's status image
Dynamic safety control system and method.
Background technology
With the development of automobile industry, the security performance of automobile is increasingly taken seriously, and many traffic accidents be by
Caused by human pilot driving condition is bad.Such as fatigue driving, drive object for appreciation mobile phone, notice are not enough concentrated and largely can
Trigger traffic accident, therefore we need a kind of active safety control system to remind driver, are taken instead of driver
Measure allow car deceleration or parking with reduce trigger traffic accident possibility.
The content of the invention
For above-mentioned weak point of the prior art, the present invention provides a kind of based on the detection of driver's status image
Active safety control system and method, wherein when driver is in bad steering state, sends alarm, control simultaneously
Car deceleration or parking.
Present invention employs following technical scheme to achieve the above object：
A kind of active safety control system based on the detection of driver's status image, including：
Image acquisition device, for gathering driver status image, including：For IMAQ ccd image sensor with
And the infrared transmitting device for night light filling；
Image processor, the driver status image collected for handling described image collector, and analyze driver
Whether bad steering state is in, including：
Holder, the example image of bad steering state is in for storing driver；
Random access memory, for storing driver's real-time status image temporarily；
Processor, for being in bad steering state to driver in driver's real-time status image and the holder
Example image is compared, and the data result after contrast is generated into signal；
CAN transceiver, for establishing LAN, receive and send signal；
MP5 display controllers, for showing driver status and vehicle condition, alarm is sent, and provide for whole system
Operation interface；
Wheel speed sensors, electric signal is generated for monitoring vehicle condition, while by vehicle wheel rotational speed；
Whole-control system VCU, for receiving the signal after described image processor is handled, and the wheel speed sensors
The signal of detection, comprehensive analysis is made, and control is made to accelerator and brake.
Further, the CAN transceiver connection described image processor, the MP5 display controllers, the vehicle control
System VCU processed, and realize the mutual communication between them.
A kind of active safety control method based on the detection of driver's status image, including：
Showing for driver's bad steering state is carried out based on MP5 display controllers embedded software control described image collector
Illustration is as typing and stores into described image processor；
The driver's real-time status image collected based on image acquisition device, is driven via described image processor comparative analysis
Whether the person of sailing is in bad steering state and generates status signal；
When driver is in bad steering state in vehicle traveling process, signal is transferred to MP5 by CAN transceiver
Display controller and whole-control system VCU, the MP5 display controllers show driver status and send alarm sounds；
Vehicle wheel rotational speed is monitored based on wheel speed sensors and transmits a signal to the whole-control system VCU；
When the whole-control system VCU judges that automobile is in transport condition and driven while receiving driver and being in bad
When sailing status signal, action command is sent to accelerator and brake so as to control car deceleration or parking.
Further, determine that driver is in bad steering state by following steps,
Wherein when judging whether driver is in bad steering state, by being carried out to driver's face and limbs feature
Collection, data processing and identification are carried out to image using image processor, and it is damaged to carrying out by algorithm, tilt, colourity is bright
Spend, contrasted after correction process with storage data, so as to judge whether driver is in bad steering state.
Further, the example image that the driver gathered in advance is in bad steering state is still image, in system
Time parameter should be added during initial setting up.
Further, when judging that driver is in bad steering state, when driver face deviate front 20 ° or
When greater angle and time reach 3 seconds or more long, determine that driver is in bad steering state.
Further, when judging that driver is in bad steering state, when driver's face is in 20 ° of front model
Enclosing the seizure of interior and ccd image sensor, constantly length reaches 2 seconds or more less than driver eye's feature, determines that driver is in not
Good driving condition.
Further, when judging that driver is in bad steering state, when driver's both hands off-direction disk and duration
When reaching 3 seconds or longer, determine that driver is in bad steering state.
Further, alarm is not sent when driver is not in bad steering state or when automobile is in halted state
Whole-control system VCU will not control accelerator and brake to perform and slow down or brake simultaneously.
Beneficial effects of the present invention include：Driver is reminded to drive with caution in time, active ramp to stop avoids dangerous generation,
Improve the security performance of automobile.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the active safety control system based on the detection of driver's status image of the present invention
Figure；
Fig. 2 is IMAQ in a kind of active safety control system based on the detection of driver's status image of the present invention
The structural representation of device；
Fig. 3 is image procossing in a kind of active safety control system based on the detection of driver's status image of the present invention
The structural representation of device；
Fig. 4 is the flow of active safety control system and method for the present invention kind based on the detection of driver's status image
Figure.
Embodiment
The present invention is further described with reference to specific embodiment and accompanying drawing.
A kind of active safety control system based on the detection of driver's status image as shown in Figures 1 to 3, including：Figure
As collector 1, image processor 2, CAN transceiver 3, MP5 display controllers 4, wheel speed sensors 6, whole-control system VCU5.
Image acquisition device 1 can gather driver's bad steering of the driving condition image of driver, wherein initial setting up
The example image of state also passes through image acquisition device 1 and gathered.Image acquisition device 1 is by ccd image sensor 11 and infrared emitting
Device 12 forms, and ccd image sensor 11 is used for IMAQ and converts thereof into data signal.Infrared transmitting device 12 is used
As supplement light source in the case that night or light are bad, IMAQ is constantly carried out and do not interfere with driver just
Often drive.
Image processor 2 includes：Holder 21, random access memory 22, processor 23.
Holder 21 receives the example image of the driver's bad steering state gathered during storage initial setting up, can store
The example image of the bad steering state of multiple drivers, while can also increase and delete example image.
Random access memory 22 is for preserving the driver's driving condition image gathered in real time temporarily, and the image cannot function as
It is long-term to preserve.
The driver's driving condition image gathered in real time and driver are mainly in bad steering state by processor 23
Example image be compared, judge now whether driver is in bad steering in combination with the time parameter of initial setting up
State, and the data result after comparison is generated into signal.Built-in advanced algorithm enters to real-time image acquisition wherein in processor
Row is damaged, tilts, colourity, brightness, is contrasted after correction process with storage data.
CAN transceiver 3 is connected image processor 2, MP5 display controllers 4, whole-control system VCU5 by LAN
Connect and complete mutually to communicate.
MP5 display controllers 4 are used to show the current driving condition of driver and be in bad steering state in driver
Alarm is sent, while MP5 display controllers 4 also provide operation interface for whole system.It is mainly used in the present embodiment
The imaged collector 1 of initial setting up time control is in the example image collection of bad steering state, time parameter setting to driver.
Wheel speed sensors 6 are used to monitor vehicle condition, and vehicle wheel rotational speed is converted into electric signal.
Whole-control system VCU5 is the key control unit of electric automobile, and the present embodiment mainly utilizes whole-control system
Control to transaxle and brake.Whole-control system VCU5 is received come to the driver sent of image processor 3
The motoring condition signal that driving condition signal and wheel speed sensors 6 are sent, only receive driver when simultaneously and be in
When the signal and automobile of bad steering state are in transport condition, whole-control system VCU just controls accelerator and the brake to be
Car deceleration or parking.
A kind of active safety control method based on the detection of driver's status image as shown in Figure 4, including it is following
Step：
1. operating MP5 display controllers, control image acquisition device typing driver is in the exemplary plot of bad steering state
Piece is simultaneously preserved to image processor, while sets time parameter according to different bad steering states.The present embodiment preferably drives
Example image of the member in bad steering state includes：Driver's face deviates 20 ° of front, a length of 3 seconds during setting；Driver
Face deviates in the range of 20 ° of front, but when ccd image sensor is caught less than driver eye's feature, a length of 2 during setting
Second, seizure referred to herein includes driver's eye closing less than eye feature and driver's sight offsets downward and departs from sensor seizure model
Enclose；Driver's both hands off-direction disk, a length of 3 seconds during setting.
2. after vapour automobile starting 5 minutes, image acquisition device starts to gather driver's driving condition image in real time, and
Dress changes data signal into and is delivered to image processor.
3. image processor receive collector transmission driver's driving condition realtime graphic, while by realtime graphic with
Whether the sample picture that the driver stored in advance is in bad steering state is compared, and judge driver now in not
Good driving condition.Such as driver's face deviates 20 ° of front or bigger, and keep this state for time reach 3 seconds and more than,
Then comparing result is that driver is in bad steering state；Driver's face deviates in the range of 20 ° of front, but ccd image
Sensor catch is fallen asleep less than driver eye's feature, situation including driver fatigue, driver's eyes see the mobile phone or its
His equipment, and duration reaches 2 seconds or longer, then the result contrasted is that driver is in bad steering state；Driver's both hands take off
Reach 3 seconds or longer from steering wheel and duration, then comparing result is that driver is in bad steering state.
4.MP5 display controllers are received to the comparing result signal of image processor, so as to show current driver's
Driving condition, receive when driver is in the signal of bad steering state during automobile is in traveling and show danger
Drive and send alarm sound, remind driver to drive with caution.
5. whole-control system receives the vehicle condition signal of wheel speed sensors transmission, while receives image processor and send
The current driving condition signal of driver, only after automobile is in transport condition and MP5 display controllers send alarm 1 second
Driver does not react, and whole-control system VCU just controls accelerator and brake to make car deceleration or parking.
The technical scheme provided above the embodiment of the present invention is described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are set forth, the explanation of above example is only applicable to help and understands this
The principle of inventive embodiments；Meanwhile for those of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party
There will be changes in formula and application, in summary, this specification content should not be construed as limiting the invention.
Claims (9)
1. a kind of active safety control system based on the detection of driver's status image, including：
Image acquisition device, for gathering driver status image, including：For the ccd sensor of IMAQ and for night
Between light filling infrared transmitting device；
Image processor, the driver status image collected for handling described image collector, and whether analyze driver
In bad steering state, including：
Holder, the example image of bad steering state is in for storing driver；
Random access memory, for storing driver's real-time status image temporarily；
Processor, for being in the example of bad steering state to driver in driver's real-time status image and the holder
Image is compared, and the data result after contrast is generated into signal；
CAN transceiver, for establishing LAN, receive and send signal；
MP5 display controllers, for showing driver status and vehicle condition, alarm is sent, and operation is provided for whole system
Interface；
Wheel speed sensors, electric signal is generated for monitoring vehicle condition, while by vehicle wheel rotational speed；
Whole-control system VCU, for receiving the signal after described image processor is handled, and wheel speed sensors detection
Signal, make comprehensive analysis, and control is made to accelerator and brake.
2. a kind of active safety control system based on the detection of driver's status image according to claim 1, its
It is characterised by：The CAN transceiver connection described image processor, the MP5 display controllers, the whole-control system
VCU, and realize the mutual communication between them.
3. a kind of active safety control method based on the detection of driver's status image, including：
The exemplary plot of driver's bad steering state is carried out based on MP5 display controllers embedded software control described image collector
As typing and store into described image processor；
The driver's real-time status image collected based on image acquisition device, via described image processor comparative analysis driver
Whether it is in bad steering state and generates status signal；
When driver is in bad steering state in vehicle traveling process, signal is transferred to MP5 by CAN transceiver and shown
Controller and whole-control system VCU, the MP5 display controllers show driver status and send alarm sounds；
Vehicle wheel rotational speed is monitored based on wheel speed sensors and transmits a signal to the whole-control system VCU；
When the whole-control system VCU judges that automobile is in transport condition while receiving driver is in bad steering shape
During state signal, action command is sent to accelerator and brake so as to control car deceleration or parking.
4. a kind of active safety control method based on the detection of driver's status image according to claim 4, its
It is characterised by：Determine that driver is in bad steering state by following steps,
Wherein when judging whether driver is in bad steering state, by being adopted to driver's face and limbs feature
Collection, data processing and identification are carried out to image using image processor, and it is damaged to carrying out by algorithm, tilt, colourity is bright
Spend, contrasted after correction process with storage data, so as to judge whether driver is in bad steering state.
5. a kind of active safety control method based on the detection of driver's status image according to claim 4, its
It is characterised by：The example image that the driver gathered in advance is in bad steering state is still image, in system initial setting up
When should add time parameter.
6. a kind of active safety control method based on the detection of driver's status image according to claim 4, its
It is characterised by：When judging that driver is in bad steering state, when driver's sight deviate front 20 ° or greater angle and
When time reaches 3 seconds or more long, determine that driver is in bad steering state.
7. a kind of active safety control method based on the detection of driver's status image according to claim 4, its
It is characterised by：When judging that driver is in bad steering state, when driver's face is in the range of 20 ° of the front and CCD
Less than driver eye's feature, constantly length reaches 2 seconds or more image capture sensor, determines that driver is in bad steering shape
State.
8. a kind of active safety control method based on the detection of driver's status image according to claim 4, its
It is characterised by：When judging that driver is in bad steering state, reach 3 seconds when driver's both hands off-direction disk and duration or
When longer, determine that driver is in bad steering state.
9. a kind of active safety control method based on the detection of driver's status image according to claim 4, its
It is characterised by：Alarm vehicle simultaneously is not sent when driver is not in bad steering state or when automobile is in halted state
Control system VCU will not control accelerator and brake to perform and slow down or brake.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710766556.5A CN107585162A (en) | 2017-08-30 | 2017-08-30 | A kind of active safety control system and method based on the detection of driver's status image |
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| CN201710766556.5A CN107585162A (en) | 2017-08-30 | 2017-08-30 | A kind of active safety control system and method based on the detection of driver's status image |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860150A (en) * | 2018-07-03 | 2018-11-23 | 百度在线网络技术（北京）有限公司 | Automobile brake method, apparatus, equipment and computer readable storage medium |
| CN110979340A (en) * | 2019-12-20 | 2020-04-10 | 北京海纳川汽车部件股份有限公司 | Vehicle and control method and device thereof |
| CN112622892A (en) * | 2020-12-14 | 2021-04-09 | 深圳技术大学 | Emergency braking method and system based on face and limb posture recognition |
-
2017
- 2017-08-30 CN CN201710766556.5A patent/CN107585162A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860150A (en) * | 2018-07-03 | 2018-11-23 | 百度在线网络技术（北京）有限公司 | Automobile brake method, apparatus, equipment and computer readable storage medium |
| CN110979340A (en) * | 2019-12-20 | 2020-04-10 | 北京海纳川汽车部件股份有限公司 | Vehicle and control method and device thereof |
| CN112622892A (en) * | 2020-12-14 | 2021-04-09 | 深圳技术大学 | Emergency braking method and system based on face and limb posture recognition |
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