CN106485880A - Automobile driving safe early warning vehicle intelligent terminal - Google Patents
Automobile driving safe early warning vehicle intelligent terminal Download PDFInfo
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- CN106485880A CN106485880A CN201611029631.1A CN201611029631A CN106485880A CN 106485880 A CN106485880 A CN 106485880A CN 201611029631 A CN201611029631 A CN 201611029631A CN 106485880 A CN106485880 A CN 106485880A
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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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- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a kind of automobile driving safe early warning vehicle intelligent terminal, it is characterised in that it includes drunk driving safety early warning device and fatigue driving safety early warning device；Drunk driving safety early warning device includes wireless sensor device, radio receiving transmitting module, single-chip microcomputer and long distance control system and the warning device of site environment detection；Radio receiving transmitting module is included for receiving its detection information and detection information being converted to the wireless launcher of transmission signal, being connected with single-chip microcomputer signal, be used for receiving the wireless receiver of wireless launcher transmission signal, long distance control system is connected with single-chip microcomputer signal, and single-chip microcomputer is connected with warning device control；Fatigue driving safety early warning device includes the speech prompting device of camera and the controller being connected with camera and controller connection.Present configuration is simple, and easy to operate, compared to the product of same type, performance is more superior.
Description
Technical field
The present invention relates to vehicle electronic device technical field, specifically relates to a kind of vehicle-mounted intelligence of automobile driving safe early warning
Can terminal.
Background technology
With expanding economy, growth of the automobile in China's communications and transportation is exceedingly fast, and drunk driving and fatigue driving are all traffic
Accident one of the main reasons occurred frequently.Driving of drinking as you know will be in prison, and this concept tired is difficult to definition, science
Family more than 100 year to fatigue study, also clearly defines, only abstract description.Specify continuous driving machine in traffic method
Even if motor-car was not stopped more than 4 hours, rest or time of having a rest of stopping, less than fatigue driving in 20 minutes, such can define non-
Often limit to, legal provisions also imperfection.No matter everybody cognition to fatigue driving, or investigation of the traffic to fatigue driving
Dynamics, because cannot accomplish to judge in advance, punishment is also little.
According to statistics, the annual toll on traffic of China has been over 100,000 people, and China's automobile pollution is less than complete
The 2% of the world, but the ratio that the death toll of traffic accident then accounts for the whole world reaches 20%.For many years, China's traffic accident is dead
Number of dying has declined, but as automobile pollution increases faster, so annual traffic accident total toll is still improper
Create new peak.The higher situation of China's road traffic accident rate is never alleviated, and death tolls are still for continuous ten years
The first in the world.Countries in the world survey data shows that fatigue of automobile driver drives the hidden danger for becoming various countries' traffic accident, because tired
Please the death toll up to more than 40 ten thousand of the every year's harvest is sailed.Under so severe traffic accident situation, the work(that general-utility car is ridden instead of walk
With can not meet Man's Demands, the active safety technologies of vehicle are paid close attention to by more and more people.
Content of the invention
The purpose of the present invention be exactly in order to solve the deficiency of prior art and provide a kind of not only simple to operation, no
Protected from environmental, daytime and evening use same detection method, have good adaptability, the high car steering peace of the degree of accuracy
Full early warning vehicle intelligent terminal.
The present invention is to realize above-mentioned purpose using following technical solution：A kind of vehicle-mounted intelligence of automobile driving safe early warning
Energy terminal, it is characterised in that it includes drunk driving safety early warning device and fatigue driving safety early warning device；
Drunk driving safety early warning device include site environment detection wireless sensor device, radio receiving transmitting module, single-chip microcomputer
With long distance control system and warning device；Radio receiving transmitting module includes for receiving its detection information and is converted to detection information
The wireless launcher of transmission signal is being connected with single-chip microcomputer signal, be used for receiving the wireless receiving of wireless launcher transmission signal
Device, long distance control system are connected with single-chip microcomputer signal, and single-chip microcomputer is connected with warning device control, at the scene environmental detection device inspection
When the every detected value for measuring exceedes threshold value, control warning device sends alarm signal；
Fatigue driving safety early warning device includes the language of camera and the controller being connected with camera and controller connection
Sound alarm set, camera gather the head image of driver, the then feature extraction to face and eye pupil, and utilize
Tired decision-making system in controller judged to fatigue driving degree, situation of the control voice alarm set to fatigue driving
Carry out voice reminder.
Further illustrating as such scheme, the wireless transceiver chip of wireless sensor device are to be operated in ISM frequency
Section, wireless sensor device include frequency generator, enhancement mode controller, power amplifier, crystal oscillator, modulator
And demodulator, the setting of power output channel selection and the setting of agreement by wireless communication interface, it is connected to single-chip microcomputer and completes
Wireless Data Transmission, realizes the communication of monitor supervision platform and test point.
Further, long distance control system includes data memory module, alcohol detection system website, and radio receiving transmitting module will
Data are sent to single-chip microcomputer, it is achieved that the detection of alcohol concentration and the storage of data, then the data that will be stored by wireless network
It is transferred to alcohol detection system website.
Further, the data transfer flow process of alcohol detection system includes wireless sensor device collection, data stream transmitting
Passage, three parts of server, sensor carry out real-time detection and analysis by the concentration for measuring in-car alcohol, and pass through
Analyze data is sent to server by data transmission channel, then issues the user with early warning information by server.
Further, face detection system, human eye alignment system and Fatigue Evaluating System is embedded with controller, realizes driving
The detection of the person's of sailing face, the positioning of driver's human eye, the judgement of driver's eyes state and the judgement of driver's fatigue degree.
Further, the face detection system is the facial information for obtaining driver using camera, and fixed by human eye
Position system obtains eye image, by judging the closure state of eyes to the identification of image and analysis；Then eye pupil is scheduled
Aperture more than 25% eye in state is opened, close when the aperture of pupil thinks that equal to or less than 25% eyes are in
Conjunction state.
Further, after the face image of the driver that the camera is collected, the image first to reading in is carried out
The conversion of color space, convenient use color information segmentation face and background, then according to color distortion, remove inhuman face
Point, the bianry image only containing face scope is finally obtained, eye positioning system will detect driving in driver's face area
The eyes of member, and the driver's eyes that orients are extracted.
Further, human eye position fixing process includes the facial image foundation human eye for obtaining first from face detection system
Distribution characteristics reduces the scope of face, then carries out rim detection by edge detection algorithm, then passes through Hough detection circle,
Eyes are finally detected, the profile of pupil can be oriented using above process, can be calculated except pupil center and radius,
Such that it is able to judge the open and-shut mode of eyes.
Further, during fatigue driving safety early warning device judges driver tired driving degree, including to blinking
Eye frequency, averagely blink duration, the speed of average eyes closed or in the unit interval eyes closed time (PERCLOS
Value) detection；Frequency of wink is eyes to be closed again to the process that opens from opening to；Human eye is per minute under normal circumstances blinks 10
To 15 times, every time 4 to 5 seconds interval times of blink, blink duration about 0.2 second, is being driven by counting driver every time
When unit interval in blink method of the number of times as determining whether fatigue driving occur；The inspection of average blink duration
Survey, be because in fatigue, the blink duration of people can significantly improve, and fly into the abnormal conditions such as foreign matter and can also carry in eyes
Height, these can all affect the driving of driver, therefore the blink duration as sentencing in the research of some fatigue drivings detection
The index of disconnected fatigue；The detection of the speed of average eyes closed, be by calculating in a period of time eyes from utmost opening eyes
To the average required time of closing one's eyes, if this time is more than certain threshold value, then it is assumed that state of the driver in fatigue driving；
PERCLOS value is calculated as follows：
The beneficial effect that the present invention can be reached using above-mentioned technical solution is：
1st, the alcohol detection system that the present invention is adopted is made up of hardware and software two large divisions, and it is wireless that site environment is detected
Sensor device, radio receiving transmitting module, single-chip microcomputer, long distance control system and warning device；Radio receiving transmitting module includes indoor nothing
The connection of line sensor network signal, for receiving its detection information and detection information being converted to the wireless transmission of transmission signal
Device is being connected with single-chip microcomputer signal, be used for receiving the wireless receiver of wireless launcher transmission signal；Long-distance monitorng device and list
Piece machine signal connects；Single-chip microcomputer is connected with warning device control, and every detected value that environmental detection device is detected at the scene surpasses
When crossing threshold value, control warning device sends alarm signal, realizes long-range monitoring by internet, is understood in environment inside car at any time
Whether driver drinks.
2nd, the present invention directly can be installed on automobile, carried out by the head image of camera Real-time Collection driver tired
Labor judges that gather the head image of driver by camera, detection means volume is little, easily realizes, and cost is relatively low, Er Qiewei
Untouchable detection instrument, itself will not produce impact to driver；Using driver eyes feature judging fatigue
State, the degree of accuracy are high, are not affected by automobile interior exterior environment, carry out excessive operation substantially without driver to system.
Description of the drawings
Fig. 1 is the drunk driving safety early warning device attachment structure schematic diagram of the present invention；
Fig. 2 is the fatigue driving safety early warning device attachment structure schematic diagram of the present invention；
Fig. 3 is the attachment structure schematic diagram of the present invention；
Fig. 4 is the fatigue driving safety early warning device operation logic figure of the present invention；
Fig. 5 is the fatigue driving safety early warning device operation logic figure of the present invention；
Fig. 6 is the fatigue driving safety early warning device operation logic figure of the present invention；
Fig. 7 is the fatigue driving safety early warning device operation logic figure of the present invention；
Fig. 8 is the fatigue driving safety early warning device operation logic figure of the present invention；
Fig. 9 is driver tired driving detecting system frame diagram.
Description of reference numerals：1st, drunk driving safety early warning device 1-1, wireless sensor device 1-2, radio receiving transmitting module
1-3, single-chip microcomputer 1-4, long distance control system 1-5, warning device 2, fatigue driving safety early warning device 2-1, camera 2-
2nd, controller 2-3, speech prompting device.
Specific embodiment
The technical program is explained in detail below in conjunction with specific embodiment.
As Figure 1-Figure 2, the present invention is a kind of automobile driving safe early warning vehicle intelligent terminal, and it includes drunk driving safety
Prior-warning device 1 and fatigue driving safety early warning device 2；
Drunk driving safety early warning device include site environment detection wireless sensor device 1-1, radio receiving transmitting module 1-2,
Single-chip microcomputer 1-3 and long distance control system 1-4 and warning device 1-5；Radio receiving transmitting module is included for receiving its detection information simultaneously
Detection information is converted to the wireless launcher of transmission signal, being connected with single-chip microcomputer signal, be used for receiving wireless launcher and send out
The wireless receiver of signal is penetrated, long distance control system is connected with single-chip microcomputer signal, single-chip microcomputer is connected with warning device control, existing
When every detected value that field environmental detection device is detected exceedes threshold value, control warning device sends alarm signal；Wireless sensing
The wireless transceiver chip of device device is to be operated in ISM band, and wireless sensor device includes frequency generator, enhancement mode
Controller, power amplifier, crystal oscillator, modulator and demodulator, power output channel selection and the setting of agreement pass through
The setting of wireless communication interface, is connected to single-chip microcomputer and completes Wireless Data Transmission, realizes the communication of monitor supervision platform and test point.Far
Range monitoring system includes data memory module, alcohol detection system website, radio receiving transmitting module transfer data to single-chip microcomputer and
Data memory module, it is achieved that the detection of alcohol concentration and the storage of data, then the data transfer that will be stored by wireless network
To alcohol detection system website.Alcohol detection system monitoring website：User interface is the website based on browser platform, in website
Upper displaying and early warning, to user's display data trend.Long-range monitoring is realized by internet, understands driving in environment inside car at any time
Whether the person of sailing drinks.
The data transfer flow process of alcohol detection system includes wireless sensor device collection, data stream transmitting passage, service
Three parts of device, sensor carry out real-time detection and analysis by the concentration for measuring in-car alcohol, and pass through data transfer
Analyze data is sent to server by passage, then issues the user with early warning information by server.Warning device uses shake-up
Threshold value sends SMS alarm automatically.Sensor node detects data beyond after setting value, that is, start alarm, while by abnormal letter
Number incoming long distance control system, user can receive note alarm, while passing through the terminal such as mobile phone, laptop computer, panel computer
Browser can directly receive in-car by internet and send alarm signal, report alcohol concentration exception.Using shake-up threshold value certainly
Dynamic transmission note alarm, is further divided into voice alarm, the form such as mobile phone A pp alarm.
As shown in Fig. 4-Fig. 8, fatigue driving safety early warning device 2 includes camera 2-1 and the control being connected with camera
The device 2-2 and speech prompting device 2-3 of controller connection, camera adopt the COMS camera collection with near-infrared function
Image.The head image of camera collection driver, the then feature extraction to face and eye pupil, and utilize controller
In tired decision-making system judge that to fatigue driving degree control voice alarm set carries out language to the situation of fatigue driving
Sound is reminded.Face detection system, human eye alignment system and Fatigue Evaluating System is embedded with controller, realizes driver's face
Detection, the positioning of driver's human eye, the judgement of driver's eyes state and the judgement of driver's fatigue degree.
It should be noted that the controller 2-2 of fatigue driving safety early warning device 2 can be with drunk driving safety early warning device
Single-chip microcomputer 1-3 is integrated into the form of same control chip, it is also possible to which being respectively adopted different control chips carries out operational control.
Further, as Figure 6-Figure 8, the face detection system is the face's letter for obtaining driver using camera
Breath, and eye image is obtained by human eye alignment system, by judging the closure state of eyes to the identification of image and analysis；Then
It is more than 25% eye in state is opened due to the aperture of eye pupil, when the aperture of pupil is recognized equal to or less than 25%
Closure state is in for eyes.As shown in figure 9, being driver tired driving detecting system frame diagram, collect in the camera
After the face image of the driver for arriving, the image first to reading in carries out the conversion of color space, and convenient use color information is divided
Face and background is cut, then according to color distortion, non-face part is removed, finally obtains the binary map only containing face scope
Picture, eye positioning system will detect the eyes of driver in driver's face area, and the driver's eyes that orients are carried
Take out.Human eye position fixing process includes that the facial image for obtaining first from face detection system subtracts according to human eye distribution characteristics
The scope of few face, then carries out rim detection by edge detection algorithm, then passes through Hough detection circle, finally detects
Eyes, can orient the profile of pupil, can calculate except pupil center and radius, such that it is able to sentence using above process
The open and-shut mode of disconnected eyes.
Further, during fatigue driving safety early warning device judges driver tired driving degree, including to blinking
Eye frequency, averagely blink duration, the speed of average eyes closed or in the unit interval eyes closed time (PERCLOS
Value) detection；Frequency of wink is eyes to be closed again to the process that opens from opening to；Human eye is per minute under normal circumstances blinks 10
To 15 times, every time 4 to 5 seconds interval times of blink, blink duration about 0.2 second, is being driven by counting driver every time
When unit interval in blink method of the number of times as determining whether fatigue driving occur；The inspection of average blink duration
Survey, be because in fatigue, the blink duration of people can significantly improve, and fly into the abnormal conditions such as foreign matter and can also carry in eyes
Height, these can all affect the driving of driver, therefore the blink duration as sentencing in the research of some fatigue drivings detection
The index of disconnected fatigue；The detection of the speed of average eyes closed, be by calculating in a period of time eyes from utmost opening eyes
To the average required time of closing one's eyes, if this time is more than certain threshold value, then it is assumed that state of the driver in fatigue driving；
PERCLOS value is calculated as follows：
PERCLOS algorithm has three kinds：
P70：Refer to be calculated as eyes more than 70%, then in closure state when the area that eyelid covers pupil, during statistical unit
Interior eyes closed time percentage.
P80：Refer to cover the area of pupil more than 80% when eyelid, then it is assumed that eyes are in closure state, during statistical unit
Interior eyes closed time percentage.
EM：Referring to, the area for pupil being covered when eyelid then thinks eyes in closure state, statistical unit time more than half
Interior eyes closed time percentage.
Although several standards can carry out early warning to varying degrees to fatigue driving, the phase of P80 and driver
Closing property is best.
The present invention compared with prior art, 1, sensor by the concentration for measuring in-car alcohol carry out real-time detection and point
Analysis, and analyze data is sent to by server by data transmission channel, then early warning information is issued the user with by server；This is
System can be collected and preservation information, remotely monitored by internet, can understand the situation data stream of in-car alcohol concentration at any time
Whether journey, the driver for being understood in environment inside car at any time drink.
2nd, the present invention gathers the head image of driver by camera, and then the feature to face and eye pupil is carried
Take, and fatigue driving degree is judged using tired decision rule.Situation to fatigue driving carries out voice reminder.No
Protected from environmental, daytime and evening use same detection method, have good adaptability, and the degree of accuracy is high.Improve model
The determination of identification, is that large-scale promotion is laid a good foundation, and with obvious economic benefit and social benefit, it can be zero, automobile
The development of part enterprise provides new growth point.It is untouchable detection instrument, and itself will not produce impact to driver.Adopt
Judging fatigue state, the degree of accuracy is high, is not affected by automobile interior exterior environment for feature with the eyes of driver.By camera
The head image of collection driver, detection means volume are little, easily realize, and cost is relatively low.And, the present invention is directly on automobile
Install, tired judgement is carried out by the head image of camera Real-time Collection driver, substantially without driver to system
Carry out excessive operation.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, some deformation and improvement can also be made, these belong to the present invention
Protection domain.
Claims (9)
1. a kind of automobile driving safe early warning vehicle intelligent terminal, it is characterised in that it includes drunk driving safety early warning device and tired
Please safety early warning device is sailed；
Drunk driving safety early warning device includes the wireless sensor device of site environment detection, radio receiving transmitting module, single-chip microcomputer and remote
Range monitoring system and warning device；Radio receiving transmitting module includes for receiving its detection information and detection information is converted to transmitting
The wireless launcher of signal is being connected with single-chip microcomputer signal, be used for receiving the wireless receiver of wireless launcher transmission signal, far
Range monitoring system is connected with single-chip microcomputer signal, and single-chip microcomputer is connected with warning device control, and environmental detection device is detected at the scene
Every detected value exceed threshold value when, control warning device send alarm signal；
Fatigue driving safety early warning device includes that the voice that camera and the controller being connected with camera are connected with controller is carried
Awake device, camera gather the head image of driver, the then feature extraction to face and eye pupil, and utilize control
Tired decision-making system in device judges that to fatigue driving degree control voice alarm set is carried out to the situation of fatigue driving
Voice reminder.
2. automobile driving safe early warning vehicle intelligent terminal according to claim 1, it is characterised in that wireless senser is filled
The wireless transceiver chip that puts is to be operated in ISM band, and wireless sensor device includes frequency generator, enhancement mode control
Device, power amplifier, crystal oscillator, modulator and demodulator, power output channel selection and the setting of agreement are by wireless
The setting of communication interface, is connected to single-chip microcomputer and completes Wireless Data Transmission, realizes the communication of monitor supervision platform and test point.
3. automobile driving safe early warning vehicle intelligent terminal according to claim 1, it is characterised in that long distance control system
Including data memory module, alcohol detection system website, radio receiving transmitting module transfers data to single-chip microcomputer, it is achieved that alcohol is dense
The detection of degree and the storage of data, then by wireless network by the data transfer for storing to alcohol detection system website.
4. automobile driving safe early warning vehicle intelligent terminal according to claim 1, it is characterised in that alcohol detection system
Data transfer flow process include wireless sensor device collection, data stream transmitting passage, three parts of server, sensor
Real-time detection and analysis are carried out by the concentration for measuring in-car alcohol, and analyze data is sent to by clothes by data transmission channel
Business device, then early warning information is issued the user with by server.
5. automobile driving safe early warning vehicle intelligent terminal according to claim 1, it is characterised in that embed in controller
There are face detection system, human eye alignment system and Fatigue Evaluating System, realize the detection of driver's face, the determining of driver's human eye
Position, the judgement of driver's eyes state and the judgement of driver's fatigue degree.
6. automobile driving safe early warning vehicle intelligent terminal according to claim 1, it is characterised in that the Face datection
System is the facial information for obtaining driver using camera, and obtains eye image by human eye alignment system, by image
Identification and analysis judge the closure state of eyes；Then the aperture due to eye pupil is in more than 25% eye and opens shape
State, when the aperture of pupil thinks eyes in closure state equal to or less than 25%.
7. automobile driving safe early warning vehicle intelligent terminal according to claim 1, it is characterised in that in the camera
After the face image of the driver for collecting, the image first to reading in carries out the conversion of color space, and convenient use color is believed
Breath segmentation face and background, then according to color distortion, remove non-face part, finally obtain the two-value only containing face scope
Image, eye positioning system will detect the eyes of driver in driver's face area, and by the driver's eyes that orients
Extract.
8. automobile driving safe early warning vehicle intelligent terminal according to claim 7, it is characterised in that human eye position fixing process
Reduce the scope of face, Ran Houtong including the facial image for obtaining first from face detection system according to human eye distribution characteristics
Crossing edge detection algorithm carries out rim detection, then passes through Hough detection circle, finally detects eyes, orient the wheel of pupil
Exterior feature, calculates except pupil center and radius, so as to judge the open and-shut mode of eyes.
9. automobile driving safe early warning vehicle intelligent terminal according to claim 1, it is characterised in that fatigue driving safety
During prior-warning device judges driver tired driving degree, including to frequency of wink, averagely blink the duration, average eye
Eyeball closure speed or in the unit interval time of eyes closed detection.
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