CN108236471A - A kind of driver fatigue state on-line measuring device based on Image Information Processing - Google Patents
A kind of driver fatigue state on-line measuring device based on Image Information Processing Download PDFInfo
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- CN108236471A CN108236471A CN201810335371.3A CN201810335371A CN108236471A CN 108236471 A CN108236471 A CN 108236471A CN 201810335371 A CN201810335371 A CN 201810335371A CN 108236471 A CN108236471 A CN 108236471A
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- 230000001815 facial effect Effects 0.000 claims description 3
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
- A61B5/18—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state for vehicle drivers or machine operators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6893—Cars
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7271—Specific aspects of physiological measurement analysis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/7405—Details of notification to user or communication with user or patient ; user input means using sound
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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Abstract
The present invention provides a kind of driver fatigue state on-line measuring device based on Image Information Processing, including thermal camera, two degrees of freedom fixed frame, electronic control unit, speaker, alarm unit, display unit, system power supply unit；The thermal camera is screwed on two degrees of freedom fixed frame, video camera is driven in real time to realize dynamic face by the revolution of motor to track, in favor of obtaining more real-time, accurate driver's image, two degrees of freedom fixed frame is further secured on vehicle；The thermal camera is connected in electronic control unit, and electronic control unit carries out further Image Information Processing and analysis；The alarm unit, display unit, system power supply unit are bound up by conducting wire and electronic control unit, realize output warning information, display image, system power supply；The speaker is connected in the power amplifier control terminal of speech chip, and by voice broadcast alerting drivers, voice broadcast chip is using the chip SC020G for being previously written voice content.
Description
Technical field
The present invention relates to a kind of fatigue of automobile driver state on-line detectors, belong to recognition of face control field, special
It is not related to a kind of driver fatigue state on-line measuring device based on Image Information Processing.
Background technology
With the progress of society, people’s lives rhythm is gradually accelerated, and automobile has become irreplaceable for people's trip
The vehicles.However work and offer convenience for people's lives at it, improve efficiency while, also to driver in itself and other
The life security of people etc. has buried potential grave danger.In China, due to driver traffic safety consciousness generally compared with
Phenomena such as difference, corresponding laws and regulations are perfect not enough, and drink-driving, hypervelocity are driven a car violently, fatigue driving is very prominent, every year because of traffic
Death tolls are up to 80,000 or so, and great pernicious traffic accident takes place frequently, and causes extremely severe social influence.
At present, fatigue of automobile driver state on-line detecting system belongs to contact type measurement more, and contact type measurement is mainly
Some physiological parameters of people are acquired by installing various sensors with driver, such as EEG signals, electrocardiosignal, myoelectricity
Signal, breathing and pulse etc., maintenance data treatment technology are analyzed, and obtain normal condition and each corresponding to fatigue state
Then data value installs identical detection device with driver, by detecting the physiological data of driver in vehicle of driving a vehicle,
It is compared with data when normal condition and fatigue state, identifies the driver whether in fatigue driving state.Such side
The advantages that method is convenient with signal acquisition, and data processing is simple, and non-contact measurement will not interfere driver.But
Its shortcoming also clearly, since car steering is behavior act complicated and changeable, in practical driving procedure, leads to the number of acquisition
According to easily being interfered by factors such as the driving ability of driver, driving habit, pavement conditions and natural environments, real road situation is answered
Miscellaneous changeable, the reduction of system reliability can be led to by relying solely on these data.
In view of the above-mentioned problems, the invention reside in the fatigue state that foundation can quickly and accurately judge driver, it is right in time
The detection identifying system that driver carries out early warning and driver safety is assisted to drive, to ensureing driver and other staff's person wealth
Production safety has important social value.
Invention content
The purpose of the present invention is to provide a kind of fatigue of automobile driver state online detection and control systems, overcome existing
The deficiency of contact detecting method ensure that relatively low hardware cost, higher detection efficiency and preferable accuracy of detection.
The above-mentioned purpose of the present invention is achieved through the following technical solutions：
The present invention provides a kind of driver fatigue state on-line measuring devices based on Image Information Processing, specifically include infrared
Video camera, two degrees of freedom fixed frame, electronic control unit, speaker, alarm unit, display unit, system power supply unit；Described is infrared
Video camera is screwed on two degrees of freedom fixed frame, using two degrees of freedom fixing device, is driven by the revolution of motor
Video camera realizes dynamic face track in real time, in favor of obtaining more real-time, accurate driver's image；Described
Thermal camera is connected in electronic control unit, and electronic control unit carries out further Image Information Processing and analysis；The police
Declaration form member, display unit, system power supply unit are bound up by conducting wire and electronic control unit, realize output audible and visible alarm letter
Breath, display image, system power supply；The speaker is connected in the power amplifier control terminal of speech chip, and speech chip passes through I/O port
It is connected in electronic control unit, realizes output voice prompt.
The thermal camera is used to obtain face's video information of driver, and video camera carries infrared night viewing function,
Even if at night, it can also obtain out the video information of driver；The two degrees of freedom fixed frame is used to fix infrared take the photograph
Camera drives video camera to realize tracking to dynamic face in real time by the way that the motor in two degrees of freedom fixed frame is controlled to turn round,
In favor of obtaining more real-time, accurate driver's image, two degrees of freedom fixed frame is further secured on vehicle；The electricity
Control unit uses STM32F429 as core processor, for extracting facial image, processing image information, two degrees of freedom reversing frame
In motor control, during Image Information Processing, the effective information of driver face, driver's eyes is obtained, through fitting
After processing and eyes, face length-width ratio are calculated, based on it, fatigue state is carried out using Taxonomy and distribution algorithm and is sentenced
It is disconnected；The speaker is connected in the power amplifier control terminal of speech chip, as output device in electronic control unit after handling operation
After knowing driver fatigue information, report alerting drivers are carried out by scheduled voice content；The warning system uses
Buzzer is formed with light emitting diode, forms audible and visible alarm prompting；The system power supply unit is using vehicle power supply by steady
The supply voltage needed for electronic control unit is obtained after the transformation of piezoelectricity source chip；The display unit is shown using lcd liquid crystal displays and regarded
Frequency information.
Description of the drawings
Fig. 1 the structural representation of present invention.
Specific embodiment
It elaborates below in conjunction with the accompanying drawings to the specific embodiment of the present invention.
Referring to Fig. 1, the present invention provides a kind of driver fatigue state on-line measuring device based on Image Information Processing,
Specifically include thermal camera, two degrees of freedom fixed frame, electronic control unit, speaker, alarm unit, display unit, system power supply list
Member；The thermal camera is screwed on two degrees of freedom fixed frame, using two degrees of freedom fixing device, passes through electricity
The revolution of machine drives video camera to be realized in real time to dynamic face and tracks, in favor of obtaining more real-time, accurate car steering
Member's image；The thermal camera is connected in electronic control unit, electronic control unit carry out further Image Information Processing with
Analysis；The alarm unit, display unit, system power supply unit are bound up by conducting wire and electronic control unit, are realized defeated
Go out warning information, display image, system power supply；The speaker is connected in the power amplifier control terminal of speech chip, speech chip
It is connected in electronic control unit by I/O port, realizes output voice prompt.
The thermal camera is used to obtain face's video information of driver, and video camera carries infrared night viewing function,
Even if at night, it can also obtain out the video information of driver；The two degrees of freedom fixed frame is used to fix infrared take the photograph
Camera drives video camera to realize tracking to dynamic face in real time by the way that the motor in two degrees of freedom fixed frame is controlled to turn round,
In favor of obtaining more real-time, accurate driver's image, two degrees of freedom fixed frame is further secured on vehicle；The electricity
Control unit uses STM32F429 as core processor, for extracting facial image, processing image information, two degrees of freedom reversing frame
In motor control, during Image Information Processing, the effective information of driver face, driver's eyes is obtained, through fitting
After processing and eyes, face length-width ratio are calculated, based on it, fatigue state is carried out using Taxonomy and distribution algorithm and is sentenced
It is disconnected；The speaker is connected in the power amplifier control terminal of speech chip, as output device in electronic control unit after handling operation
After knowing tired information, by voice broadcast alerting drivers, voice broadcast chip is using the chip for being previously written voice content
SC020G；The warning system is formed using buzzer and light emitting diode, forms audible and visible alarm prompting；The system supplies
Electric unit obtains the supply voltage needed for electronic control unit using vehicle power supply after the transformation of regulated power supply chip；The display
Unit shows video information using lcd liquid crystal displays.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, it is all the present invention spirit and
Within principle, any modification, replacement, improvement etc. on an equal basis for being made are all contained within protection scope of the present invention.
Claims (6)
1. a kind of driver fatigue state on-line measuring device based on Image Information Processing, feature：Including infrared photography
Machine, two degrees of freedom fixed frame, electronic control unit, speaker, display unit, system power supply unit；The thermal camera passes through spiral shell
Silk is fixed on two degrees of freedom fixed frame, and using two degrees of freedom fixing device, video camera is driven in real time by the revolution of motor
Dynamic face is realized and is tracked, in favor of obtaining more real-time, accurate driver's image, two degrees of freedom fixed frame is into one
Step is fixed onboard；The thermal camera is connected in electronic control unit, and electronic control unit is carried out at further image information
Reason and analysis；The alarm unit, display unit, system power supply unit are bound up by conducting wire and electronic control unit, real
Now output audible and visible alarm information, display image, system power supply；The speaker is connected in the power amplifier control terminal of speech chip,
Speech chip is connected to by I/O port in electronic control unit, realizes output voice prompt.
2. a kind of driver fatigue state on-line measuring device based on Image Information Processing according to claim 1,
It is characterized in that：Electronic control unit uses STM32F429 as core processor, and extraction facial image, processing image information, control two are certainly
Face tracking is realized by the motor in degree reversing frame, obtained after face information processing driver face, driver's eyes it is effective
Information after process of fitting treatment and calculates eyes, face length-width ratio, based on it, is carried out using Taxonomy and distribution algorithm
Fatigue state judges.
3. a kind of driver fatigue state on-line measuring device based on Image Information Processing according to claim 1,
It is characterized in that：The speaker is connected in the power amplifier control terminal of speech chip, as output device in electronic control unit through processing
After tired information is known after operation, by sound alerting drivers, voice broadcast chip is using the core for being previously written voice content
Piece SC020G.
4. a kind of driver fatigue state on-line measuring device based on Image Information Processing according to claim 1,
It is characterized in that：The system power supply unit is obtained after the transformation of regulated power supply chip needed for electronic control unit using vehicle power supply
Supply voltage.
5. a kind of driver fatigue state on-line measuring device based on Image Information Processing according to claim 1,
It is characterized in that：The display unit uses lcd liquid crystal displays, shows video information.
6. a kind of driver fatigue state on-line measuring device based on Image Information Processing according to claim 1,
It is characterized in that：The warning system is formed using buzzer and light emitting diode, forms audible and visible alarm prompting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810335371.3A CN108236471A (en) | 2018-04-16 | 2018-04-16 | A kind of driver fatigue state on-line measuring device based on Image Information Processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810335371.3A CN108236471A (en) | 2018-04-16 | 2018-04-16 | A kind of driver fatigue state on-line measuring device based on Image Information Processing |
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| CN108236471A true CN108236471A (en) | 2018-07-03 |
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| CN201810335371.3A Pending CN108236471A (en) | 2018-04-16 | 2018-04-16 | A kind of driver fatigue state on-line measuring device based on Image Information Processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231654A1 (en) * | 2022-05-31 | 2023-12-07 | 上海商汤智能科技有限公司 | Archive management method and apparatus, device, storage medium and program product |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240446A (en) * | 2014-09-26 | 2014-12-24 | 长春工业大学 | Fatigue driving warning system on basis of human face recognition |
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2018
- 2018-04-16 CN CN201810335371.3A patent/CN108236471A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240446A (en) * | 2014-09-26 | 2014-12-24 | 长春工业大学 | Fatigue driving warning system on basis of human face recognition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023231654A1 (en) * | 2022-05-31 | 2023-12-07 | 上海商汤智能科技有限公司 | Archive management method and apparatus, device, storage medium and program product |
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Application publication date: 20180703 |
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