CN206639358U - A kind of drowsy driving warning system - Google Patents
A kind of drowsy driving warning system Download PDFInfo
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- CN206639358U CN206639358U CN201621314415.7U CN201621314415U CN206639358U CN 206639358 U CN206639358 U CN 206639358U CN 201621314415 U CN201621314415 U CN 201621314415U CN 206639358 U CN206639358 U CN 206639358U
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Abstract
A kind of drowsy driving warning system is the utility model is related to, more particularly to a kind of accurate quick reflection driver fatigue state, low cost and the drowsy driving warning system easily realized.The system includes brain wave acquisition module, fatigue detecting integration module, warning device, described brain wave acquisition module includes amplifier, A/D converter, bandpass filter and wireless sending module, brain wave acquisition module collects EEG signals by placing an electrode within driver frontal region and pre-processed, EEG signals carry out the amplification of signal by amplifier, data signal is converted analog signals into A/D converter, bandpass filter filters signal noise, play Anti-Jamming, pretreated EEG signals are carried out to be sent in fatigue detecting integration module by wireless sending module.The utility model step is simple, reasonable in design, cost-effective and easily realize, can fast and effectively judge the fatigue driving state of driver and send alarm.
Description
Technical field
A kind of design of onboard safety systems is the utility model is related to, more particularly to a kind of accurate quick reflection driver
Fatigue state, low cost and the drowsy driving warning system easily realized.
Background technology
In recent years become increasingly conspicuous with the increase of automobile quantity, the problems such as traffic accident, Chinese transportation death tolls account for
The 15% of the whole world is arrived, road fatalities rank first in the world for several years running, and fatigue driving is then to cause traffic thing
Therefore second largest inducement.Especially cart driver, the main reason that especially big traffic accident occurs is fatigue driving.At present, study
Go out accurate and practical driver fatigue monitor system progressively turn into domestic and international scientific research hot fields, each automobile manufacturing enterprise,
Institution of higher learning, scientific research institutions, and individual etc. actively study the identification technology and control technology of fatigue driving.
The mode of detection driver tired driving mainly has heart rates detection, driveway deviation alarming system both at home and abroad at present
DAS2000, steering wheel monitoring system and PERCLOS systems, each way all have the drawbacks of certain and time delay, it is impossible to quick
Accurately judge the fatigue state of driver.
Utility model content
It is of the present utility model to be effectively to solve driver's traffic caused by fatigue driving for above-mentioned technical problem
Accident, there is provided a kind of easily realization, the system of low cost effectively preventing fatigue driving.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of drowsy driving warning system, including brain
Electric acquisition module, fatigue detecting integration module, alarm device；Described brain wave acquisition module includes the acquisition of brain electricity and filled with pretreatment
Put, wireless sending module；Described fatigue detecting integration module includes wireless receiving module, frequency processing analysis module and alarm
Audio output port, described frequency processing analysis module include FPGA equal precision frequency meters, LCDs；Described equally accurate
The frequency of brain wave that frequency meter receives to wave point carries out Treatment Analysis, and waveform is shown on LCDs;It is described tired
Frequency processing analysis module in labor detection integration module is the equal precision frequency meter based on FPGA and single-chip microcomputer, measures 0.1Hz-
10MHz frequency ranges, frequency data are carried out with the screening of θ ripple wave bands.Brain wave acquisition module is by placing an electrode within driver frontal region
Collect EEG signals and pre-processed, EEG signals carry out the amplification of signal by amplifier, by mould in A/D converter
Intend signal and be converted to data signal, bandpass filter filters signal noise, plays Anti-Jamming, carries out pretreated brain electricity
Signal is sent in fatigue detecting integration module by wireless sending module.
Further：In above-mentioned drowsy driving warning system, described fatigue detecting integration module includes wireless receiving mould
Block, frequency processing analysis module and alarm audio output port；Described wireless receiving module is consistent with sending module agreement, uses
Working frequency range be 2.4GHz-2.48GHz；Described frequency processing analysis module includes using VDHL programmed process frequency data
FPGA equal precision frequency meters, set frequency threshold judge driver whether the single-chip microcomputer Treatment Analysis module of fatigue driving.Root
Choose whether to export the alarm audio output port of alarm song according to single-chip microcomputer judged result.Described warning device module is according to list
Piece machine judged result chooses whether the alarm audio output port of output alarm song, and described audio output port is docked with single-chip microcomputer
Vehicle audio.
Compared with prior art, drowsy driving warning system of the present utility model includes：Brain wave acquisition module, fatigue detecting
Integration module, warning device, described brain wave acquisition module include amplifier, A/D converter, bandpass filter and wireless transmission
Module, brain wave acquisition module collect EEG signals by placing an electrode within driver frontal region and pre-processed, brain telecommunications
Number by amplifier carry out signal amplification, data signal is converted analog signals into A/D parallel operations, bandpass filter filters
Signal noise, Anti-Jamming is played, carry out pretreated EEG signals and fatigue detecting is sent to by wireless sending module
In integration module.The system judges that driver status is a kind of quickly and accurately mode, and effectively preventing tired by E.E.G
Please the mode sailed.Whether the utility model provides drowsy driving warning system, judge driver in tired using E.E.G
Labor state, by obtaining brain signal and detecting wave band of the driver in sleep transition area, and alarmed, for effectively avoiding
Traffic accident caused by fatigue driving.It is to reflect that the state of mind of a people is most accurate most quick that the system design, which is derived from E.E.G,
Mode, the spirit of driver occurs sleep transition area its frequency of θ wave bands between 4-7HZ i.e. before will entering sleep state
There are lasting more than 15s people and enter sleep state in driver fatigue state, general sleep transition area, and the design is then in driver
Alarm is sent during in fatigue.The utility model step is simple, reasonable in design, cost-effective and easily realization, energy are quick, effective
The fatigue driving state for judging driver and send alarm.
Brief description of the drawings
Fig. 1 is the utility model drowsy driving warning system principle schematic；
Fig. 2 is the utility model drowsy driving warning system workflow diagram.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings：
As shown in Figure 1：A kind of drowsy driving warning system includes：Brain wave acquisition module, fatigue detecting integration module, alarm
Device.Wherein brain wave acquisition module 1 includes signal amplifier, A/D converter, bandpass filter and wireless sending module；It is tired
Detecting integration module includes wireless receiving module, frequency processing analysis module.Frequency processing analysis module includes FPGA equally accurates
Frequency meter and single-chip microcomputer Treatment Analysis module.
Such as Fig. 2, eeg signal acquisition module in the present embodiment using Shen Nian scientific ＆ technical corporation of the U.S. TGAM moulds
Block, the frontal region that electrode is pressed close to driver obtain frontal region EEG signals, brain electricity of the signal amplifier in TGMA modules to acquisition
Signal amplification, the conversion of A/D converter progress analog signal figure signal are carried out, bandpass filter filters out noise frequency of brain wave number
According to stream.
The EEG signals of acquisition are converted into frequency digital form in electroencephalogramsignal signal acquisition module, by the nothing of same frequency range
Line sending module is input in fatigue detecting integration module with wireless receiving module.
FPGA equal precision frequency meters 10 in frequency processing analysis module convert data to the output of frequency waveform, will have
Six feature E.E.G frequency ranges of particular frequency range are shown over the display including α, β, γ, δ, θ, σ in the form of waveform.
Single-chip microcomputer Treatment Analysis module is combined with FPGA equal precision frequency meters, passes through volume in single-chip microcomputer Treatment Analysis module
Cheng Caiyong threshold value comparison algorithms filter out the θ wave bands in FPGA equal precision frequency meters, and judge driver be in the wave band when
Between whether more than 8S, voice alarm is then sent by warning device more than 8S if there is θ wave bands, such as otherwise step again.
The utility model step is simple, reasonable in design, cost-effective and easily realize, can fast and effectively judge to drive
The fatigue driving state for the person of sailing simultaneously sends alarm.
Described above is the preferable embodiment of the utility model, in the case of the utility model design is not departed from, is carried out
Any obvious deformation and replacement, belong to the scope of protection of the utility model.
Claims (5)
1. a kind of drowsy driving warning system, including brain wave acquisition module, fatigue detecting integration module, alarm device；
Described brain wave acquisition module includes brain electricity and obtained and pretreatment unit, wireless sending module；
Described fatigue detecting integration module includes wireless receiving module, frequency processing analysis module and alarm audio output port,
Described frequency processing analysis module includes FPGA equal precision frequency meters, LCDs；Described equal precision frequency meter is to nothing
The frequency of brain wave that line interface receives carries out Treatment Analysis, and waveform is shown on LCDs;
Frequency processing analysis module in the fatigue detecting integration module is the equal precision frequency meter based on FPGA and single-chip microcomputer,
0.1Hz-10MHz frequency ranges are measured, frequency data are carried out with the screening of θ ripple wave bands.
2. drowsy driving warning system according to claim 1, it is characterised in that：Described alarm device is by fatigue detecting
The audio output port of integration module is docked with vehicle audio, and alarm song is exported by vehicle audio.
3. drowsy driving warning system according to claim 2, it is characterised in that：Electroencephalogramsignal signal acquisition module is TGAM moulds
Block, the TGAM modules are pressed close to the EEG signals of driver frontal region acquisition driver by electrode slice and pre-processed.
4. drowsy driving warning system according to claim 3, it is characterised in that：The wireless sending module passes through specific
The transmission data of frequency range, wireless receiving module are consistent with wireless sending module consensus standard.
5. drowsy driving warning system according to claim 4, it is characterised in that：The brain electricity obtains and pretreatment unit
Include amplifier, A/D converter, bandpass filter successively by the transmittance process of signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621314415.7U CN206639358U (en) | 2016-12-02 | 2016-12-02 | A kind of drowsy driving warning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621314415.7U CN206639358U (en) | 2016-12-02 | 2016-12-02 | A kind of drowsy driving warning system |
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| CN206639358U true CN206639358U (en) | 2017-11-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147278A (en) * | 2018-09-29 | 2019-01-04 | 浙江大学 | A kind of tired driver driving monitoring device based on brain-computer interface |
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2016
- 2016-12-02 CN CN201621314415.7U patent/CN206639358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147278A (en) * | 2018-09-29 | 2019-01-04 | 浙江大学 | A kind of tired driver driving monitoring device based on brain-computer interface |
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