CN102101438B - Method and device for judging fatigue driving - Google Patents
Method and device for judging fatigue driving Download PDFInfo
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- CN102101438B CN102101438B CN 200910259528 CN200910259528A CN102101438B CN 102101438 B CN102101438 B CN 102101438B CN 200910259528 CN200910259528 CN 200910259528 CN 200910259528 A CN200910259528 A CN 200910259528A CN 102101438 B CN102101438 B CN 102101438B
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Abstract
The invention discloses a method and device for judging fatigue driving. A driving information record generated by a vehicle OBD (On-Board Diagnostics) device when a vehicle is driven serves as a resource parameter; a driver driving behaviour logically manually analyzed serves as a comparison parameter; a processing unit takes a comparison parameter as a basis to carry out data judgement and accumulation on the resource parameter; and when the accumulated resource parameter reaches the set standard, an automobile driver is judged to be in the fatigue driving state.
Description
Technical field
The present invention relates to a kind of determination methods and device of fatigue driving, relate in particular to and a kind ofly utilize standard vehicle perception signal that the existing OBD device of automobile captures as parameter, and carry out the data analysis interpretation by processing unit, use and judge whether the driver has the method for fatigue driving situation.
Background technology
Show according to Taiwan road traffic accident occurrence cause data in 2005, the generation of 82% Traffic Accidents is arranged, lead because of in driver's behavial factor, its mainly contain improper driving (comprising drunken driving) and fatigue driving etc. start because of, wherein neglected by the driver so that fatigue driving is the easiest again, therefore namely someone releases for the driver whether be in the instrument that fatigue driving judges;
see also TaiWan, China patent application case number No. 093102220 " device that still continues after a kind of driver's of preventing fatigue to drive ", it is mainly on the frame glasses of the eyeglass side of being located at glasses with a perceptron, the eyelid of driver's eyes because of tired blink lower surpass the time limit that perceptron sets after, can start a voice alarm device by perceptron, or starting shock device, to remind its state of mind of driver to reach overtired, be not suitable for continuing to drive, the rest of should stopping immediately, join bespectacled habit by generally having per capita, promote the driver to use the comfort feature of this device, to improve the safety of driver's driving.
except blinking number of times as judging the driving fatigue mode with detecting driver eyes, also someone passes through in the mode of detector induction driver eyeball pupil mode as the judgement driving fatigue, no matter yet aforementionedly blink number of times or eyeball pupil convergent-divergent as the fatigue driving judgement basis with eyes, it is all to infer with human body physiological state in principle, this kind method easily is difficult to make accurate judgement (because blink number of times and pupil convergent-divergent of eyes is to vary with each individual) because of difference on individual physiological, and this type of creation must not stop human body is detected by detector, therefore have the problems such as cost benefit is clear.
With the fatigue driving determining device existing shortcoming of Human Physiology information as detecting, this creator namely releases a kind of OBD of acquisition data as the method for judgement fatigue driving in view of prior art, and it can effectively overcome judgement and precisely not reach equipment cost and cross the shortcomings such as high;
(the On-Board Diagnostic of diagnostic system on car, abbreviation: be OBD) to be installed in car, be mainly used at present the monitoring that vehicle pollutes, in the time of can going wrong in the emission control assembly of vehicle, produce signal to notify the car owner to send factory's maintenance, avoid the problem vehicle to make more the pollution under ignorant situation, and the determination methods of a kind of fatigue driving of the present invention and device, namely for automobile speed, engine load, the air-conditioning monitoring, the engine start time, ambient temperature, the standard vehicle perception signal that the OBD fechtables such as throttle opening arrive is as parameter, and carry out the data analysis interpretation by processing unit, use and judge whether the driver has the situation of fatigue driving.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the defects that prior art exists, and provide a kind of determination methods and device of fatigue driving, it is to utilize standard vehicle perception signal that the existing OBD device of automobile captures as parameter, and carry out the data analysis interpretation by a processing unit, use and judge whether the driver has the situation of fatigue driving.
for reaching aforementioned goal of the invention, the present invention's " a kind of determination methods of fatigue driving and device ", the method of its judgement fatigue driving is that the running information that produces when being installed on running car by automobile-used OBD records as the source parameter, separately drive a vehicle habit as the comparison parameter by the driver after the people is for logic analysis, after comprising auto activation engine, this running information record continues run up time, engine load, ambient temperature, be stored in the DTC code (diagnostic code of electronic control equipment for engine) of ECU, the data such as road speed and Throttle valve aperture, separately by a processing unit take the comparison parameter as data judge and accumulative total according to the source parameter is carried out, source parameter after accumulating judges the vehicle drive when reaching to the standard that sets, and the person presents fatigue driving,
Its processing unit according to the following step sequentially to the source parameter as judgement and the accumulative total of data:
The judgement of vehicle stabilization parameter, whether to be stable in one section interval as source parameter data after judging Vehicle Driving Cycle, if, the continuous fault parameter that carries out judges, if not, be back to running information and record record again, and be to be in to run at high speed or travel in the urban district by the variation of source parameter to judge vehicle, alternatively the foundation of suitable comparison parameter;
Fault parameter judgement when the sudden pulse signal of source parameter generating, judges whether the diagnostic code of engine load that exerts an influence, as presents and be, finishes judgement, if present noly, continuously affects the vehicle parameter judgement;
Affect the vehicle parameter judgement, this affect vehicle parameter judgement be as the factor of getting rid of the engine load that artificially initiatively exerts an influence (such as because of the people for overtaking other vehicles, put brakes on violently or the situation such as switch air-conditioning), the sudden pulse signal that parameter occurs if judgement is originated is back to running information for artificial active produces and records record again, carries out tired parameter judgement if be judged as non-artificial active generation;
Tired parameter judgement, this fatigue parameter judgement is to classify and accumulative total as data weighting for the sudden pulse signal that the source parameter occurs, judge that namely the driver is fatigue driving after the data that added up exceed the standard value that tired parameter sets, be not back to running information and record record again if exceed standard value.
The fatigue driving information of being judged by the present invention be with long-range fleet management center or being arranged on car image-type fatigue driving caution system and improper driving caution system does signal and share, when judgement vehicle drive person present fatigue driving be sent signal to long-range fleet management center as caution, also or send signal to image-type fatigue driving caution system or improper driving caution system, as the improving warning sensitivity.
The processing unit also extendible connection of another the present invention take the comparison parameter as foundation, whether steering wheel angle sensor (has as the auxiliary judgment vehicle drive route of departing from, suddenly go back to again the behavior that comes), or GPS device (being to travel on countryside, urban district or express highway as the auxiliary judgment automobile), obtained more fully running car data in order to the present invention, done more accurate driving fatigue judgement.
the present invention's " a kind of determination methods of fatigue driving and device ", it can implement the device of aforementioned fatigue driving determination methods, include vehicle-mounted OBD device, codec, processing unit, base station and server-side, its codec is as linking vehicle-mounted OBD device and processing unit, in order to processing unit, vehicle-mounted OBD device is carried out data acquisition, this codec is can do with vehicle-mounted OBD device and processing unit respectively by OBD-II Cable line and RS232 Cable line to link, when processing unit through data analysis, after judgement, confirm to drive when having the fatigue driving behavior and can information be passed to by network the server-side of driving affiliated vehicle monitoring center, in order to the vehicle monitoring center monitoring or point out alert news to the driving behavior of vehicle drive.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is judgement fatigue driving comparison diagram of circuit of the present invention.
Fig. 2 can implement basic device block schematic diagram of the present invention.
The number in the figure explanation:
1 running information record
2 vehicle stabilization parameter judgements
3 fault parameter judgements
4 affect the vehicle parameter judgement
5 tired parameter judgements
61 vehicle-mounted OBD devices
62 codecs
63 processing units
64 server-sides
The specific embodiment
see also shown in Figure 1, the present invention's " a kind of determination methods of fatigue driving and device ", the method of its judgement fatigue driving is that the running information that produces when being installed on running car by automobile-used OBD records 1 as the source parameter, separately drive a vehicle habit as the comparison parameter by the driver after the people is for logic analysis, its comparison parameter is the publication that is able to according to any relevant vehicle drive habit, document or research are the basis, and it is adjusted into the comparison data, this running information record 1 is to continue run up time after auto activation engine, engine load, ambient temperature, be stored in the DTC code (diagnostic code of electronic control equipment for engine) of ECU, the data such as road speed and Throttle valve aperture add up, separately by a processing unit take the comparison parameter as data judge and accumulative total according to the source parameter is carried out, source parameter after accumulating judges the vehicle drive when reaching to the standard that sets, and the person presents fatigue driving,
Its processing unit be sequentially carry out the following step to the source parameter as judgement and the accumulative total of data:
vehicle stabilization parameter judgement 2, whether be stable in one section interval as source parameter data after judging Vehicle Driving Cycle, in this way, the continuous fault parameter that carries out judges 3, if not, be back to the running information record and again record 1, separately can judge vehicle by source parameter change is to be in to run at high speed or travel in the urban district, compare alternatively parameter to the data base of source parameter as judgement, for example: the action of carrying out brake when source automobile that parameter is proposed judged over 10 times that automobile was to travel on the urban road at present in 5 minutes, if judged lower than 10 times that automobile was at present for travelling on express highway in 5 minutes, the applicable benchmark that so can select the comparison parameter is the versions of data (speed of a motor vehicle of also can arranging in pairs or groups detects and does judgement more accurately) of city traffic driving or scorch,
fault parameter judgement 3, when the sudden pulse signal of source parameter generating (being to be the data than significant change compared to vehicle stabilization parameter judgement 1 stable region of approving), the diagnostic code of engine load judges whether to exert an influence, in this way, finish judgement, if not, the continuous vehicle parameter that affects judges 4, when fault parameter judgement 3 is defined as the diagnostic code generation of influential engine load, represent that automobile storage affects at certain part the part generation mal start that engine load changes, therefore also non-normal data of travelling from the driver of the source parameter that captures of automobile OBD, therefore using acquisition automobile normal running data namely can't obtain correct data as the present invention of fatigue judgement and judge,
Affect vehicle parameter judgement 4, this affect vehicle parameter judgement 4 as get rid of the factor that artificially initiatively produces engine load (such as because of the people for overtaking other vehicles, put brakes on violently or the situation such as switch air-conditioning), be back to running information record 1 record again if the sudden pulse signal that judgement source parameter occurs is artificial initiatively producing, carry out tired parameter judgement 5 if be judged as non-artificial active generation;
Tired parameter judgement 5, this fatigue parameter judgement 5 is to classify and accumulative total as data weighting for the signal that the source parameter occurs, judge that namely the driver is fatigue driving after the data that added up exceed the standard value that tired parameter sets, be not back to running information record 1 record again if exceed standard value.
Table one: be the vehicle condition of vehicle-mounted OBD device fechtable and make code by oneself.
| Title | Make code by oneself |
| Be stored in the DTC code of ECU | A |
| The a/c system monitoring | B |
| Vehicle speed sensor | C |
| Throttle opening | D |
| Ambient temperature | E |
| Load value | F |
| Time after engine start | G |
see also shown in table one, it is the automobile-used OBD device data that can capture and makes code by oneself, (according to approximately 80 kinds of SAE J1979 standard OBD fechtable vehicle conditions, and each depot of market must meet in standard for the OBD of fechtable, also there is self-defined special OBD code can supply acquisition), following examples are contained according to convention inference and document, (be may be as the factor of judgement vehicle driving condition under the convention inference in the state that implementation content sets as the state by OBD code judgement vehicle drive, the described vehicle driving condition of its implementation content is to adjust because of the contained data of document):
State A (dullness or complicated highway section): be able to judge by the data of engine load (F)+speed of a motor vehicle (C), as stable in engine load and the speed of a motor vehicle is stable at an interval, can judge Vehicle Driving Cycle in express highway or expressway, this is dull highway section; If engine load or the speed of a motor vehicle change frequent, can judge to travel on complicated highway section.
State B (whether the random conversion speed of a motor vehicle is arranged): be able to judge by the data of the speed of a motor vehicle (C)+Throttle valve aperture (D), change frequently as the speed of a motor vehicle or Throttle valve aperture, the situation that the random conversion speed of a motor vehicle is arranged is driven in judgement.
State C (whether continuous driving being arranged more than 2 hours or more than 160 axioms): be able to judge by the data of the time after engine start (G)+speed of a motor vehicle (C), as learning i.e. driving time as can be known of travelled distance number or engine continuous run up time with the speed of a motor vehicle to time integral, if promising zero the state of this computation interval speed of a motor vehicle, during as driving, number be should give deduction.
State D (chaufeur is at the hot environment fatiguability): be able to judge by the data of ambient temperature (E)+a/c system monitoring (B), be that 35 degree and a/c system monitoring are the not enabled air-conditioning as ambient temperature, the set environment temperature equals vehicle interior temperature.
Whether state E (has the route of departing from, suddenly go back to again the behavior that comes): be able to judge by the variation suddenly of engine load (F), as normally stablizing in the driving situation, engine load should be stable and consistent, when vehicle is had larger start, engine load will have instantaneous variation to produce and recover stable.
Aforementioned cited state A～E is the situation that possible affect driving, and be able to the method that judges by after the OBD acquisition data, before the state enumerated only be reference example, also can may affect to drive according to the document increase tired situation and judgement data occur.
see also shown in Figure 2, for implementing the basic device of aforementioned fatigue driving method of the present invention, it includes vehicle-mounted OBD device 61, codec 62, processing unit 63, base station 64 and server-side 65, its codec 62 is as linking vehicle-mounted OBD device 61 and processing unit 63, carry out data acquisition in order to 63 pairs of vehicle-mounted OBD devices 61 of processing unit, it can be done with vehicle-mounted OBD device 61 and processing unit 63 respectively by OBD-II Cable line and RS232 Cable line and link, when processing unit 63 through data analysis, after judgement, confirm to drive when having the fatigue driving behavior and can information be passed to by network the server-side 64 of driving affiliated vehicle monitoring center, in order to the vehicle monitoring center monitoring or point out alert news to the driving behavior of vehicle drive.
The tired parameter judgement 5 of the present invention be by following implementation content of giving an example as reference, (be may produce tired factor to driving under the convention inference in the state that implementation content sets, the described state of its implementation content is to adjust because of the contained data of document):
The weighted value that setting reaches fatigue driving must reach 100 minutes.
State A: when processing unit carries out the judgement of data take the comparison parameter as foundation to the source parameter, for automobile was driven 4 hours continuously, as adding up weighted value 40 minutes.
State B: to compare parameter as according to the source parameter is carried out the judgement of data, drive milimeter number for automobile accumulative total and surpass more than 160 kilometers, as adding up weighted value 20 minutes when processing unit.
State C: take the comparison parameter as according to the source parameter is carried out being judged as of data, the driver surpassed 27 degree environment and drives accumulative total and reach more than 1 hour in space, car chamber when processing unit, as accumulative total weighted value 20 minutes.
State D: take the comparison parameter as according to the source parameter is carried out being judged as of data, speed of a motor vehicle variation number of times (namely suddenly neglecting soon slow number of times) surpasses 5 times, as adding up weighted value 30 minutes when processing unit.
When state A+B+C+D betides the single motoring condition, can be judged because of 100 minutes that total weighted value surpasses that fatigue driving sets drive fatigue driving arranged may.
Aforementioned implementation content is only exemplary in nature embodiment, its actual state content and weighted score all are able to publication, document or the research according to any relevant vehicle drive habit, data base as comparison, and the present invention pay attention to the part be for a kind of with the data that OBD was captured, whether have the concept of fatigue driving situation as the objective driver of judgement.
Separately, the fatigue driving information that the present invention judges be with long-range fleet management center or being arranged on car image-type fatigue driving caution system and improper driving caution system does signal and share, when judgement vehicle drive person present fatigue driving be sent signal to long-range fleet management center as caution, also or send signal to image-type fatigue driving caution system or improper driving caution system, to promote the caution sensitivity of image-type fatigue driving caution system.
The processing unit also extendible connection of another the present invention take the comparison parameter as foundation, whether steering wheel angle sensor (has as the auxiliary judgment vehicle drive route of departing from, suddenly go back to again the behavior that comes), or GPS device (being to travel on countryside, urban district or express highway as the auxiliary judgment automobile), obtained more fully running car data in order to the present invention, done more accurate driving fatigue judgement.
Claims (9)
1. the determination methods of a fatigue driving, it is characterized in that, it is that the running information that produces when being installed on running car by automobile-used OBD records as the source parameter, separately drive a vehicle habit as the comparison parameter by the driver after the people is for logic analysis, and by a processing unit take the comparison parameter as according to the source parameter is carried out data judgements and accumulative total, described processing unit is sequentially to carry out the following step to judgement and the accumulative total of source parameter as data:
Whether vehicle stabilization parameter judgement is to be stable in one section interval as source parameter data after judge Vehicle Driving Cycle, presents to be, the continuous fault parameter that carries out judges, if present noly, is back to running information and records record again;
Fault parameter judgement when the sudden pulse signal of source parameter generating, judges whether the diagnostic code of engine load that exerts an influence, as presents and be, finishes judgement, if present noly, continuously affects the vehicle parameter judgement;
Affect the vehicle parameter judgement, this affects the vehicle parameter judgement is the factor that artificially initiatively produces engine load as getting rid of, the sudden pulse signal that parameter occurs if judgement is originated is back to running information for artificial active produces and records record again, carries out tired parameter judgement if be judged as non-artificial active generation;
Tired parameter judgement, this fatigue parameter judgement is to classify and accumulative total as data weighting for the signal that the source parameter occurs, judge that namely the driver is fatigue driving after the data that added up exceed the standard value that tired parameter sets, be not back to running information and record record again if exceed standard value;
Source parameter after accumulating judges the vehicle drive when reaching to the standard that sets, and the person presents fatigue driving.
2. the determination methods of a kind of fatigue driving according to claim 1 is characterized in that: described running information continues run up time, engine load, ambient temperature, road speed, a/c system monitoring after being recorded as auto activation engine, is stored in the DTC code of ECU and the data of Throttle valve aperture.
3. the determination methods of a kind of fatigue driving according to claim 1 is characterized in that: can judge vehicle by the change of source parameter is to be in to run at high speed or travel in the urban district, compares alternatively parameter to the data benchmark of source parameter as judgement.
4. the determination methods of a kind of fatigue driving according to claim 1 is characterized in that: when judgement vehicle drive person present fatigue driving be sent signal to long-range fleet management center as caution.
5. the determination methods of a kind of fatigue driving according to claim 1, it is characterized in that: sent signal to image-type fatigue driving caution system or improper driving caution system, as the improving warning sensitivity when judgement vehicle drive person presents fatigue driving.
6. the determination methods of a kind of fatigue driving according to claim 1 is characterized in that: described processing unit take the comparison parameter as foundation is that extendible closure dish rotary angle transmitter is as auxiliary judgment.
7. the determination methods of a kind of fatigue driving according to claim 1 is characterized in that: described processing unit take the comparison parameter as foundation is that extendible connection GPS device is as auxiliary judgment.
8. the device that can implement fatigue driving determination methods as claimed in claim 1, it is characterized in that, it includes vehicle-mounted OBD device, codec, processing unit and server-side, its codec is as linking vehicle-mounted OBD device and processing unit, in order to processing unit, vehicle-mounted OBD device is carried out data acquisition, when processing unit through data analysis, after judgement, confirm to drive when having the fatigue driving behavior is information to be passed to by network the server-side of driving affiliated vehicle monitoring center, in order to the vehicle monitoring center monitoring or point out alert news to the driving behavior of vehicle drive.
9. fatigue driving judgment means according to claim 8, it is characterized in that: described codec is done with vehicle-mounted OBD device and processing unit respectively by OBD-II Cable line and RS232 Cable line and is linked.
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| CN 200910259528 CN102101438B (en) | 2009-12-18 | 2009-12-18 | Method and device for judging fatigue driving |
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| CN 200910259528 CN102101438B (en) | 2009-12-18 | 2009-12-18 | Method and device for judging fatigue driving |
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| CN102101438B true CN102101438B (en) | 2013-11-06 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717765B (en) * | 2012-07-09 | 2015-02-11 | 湖南赛格导航技术研究有限公司 | Fatigue driving detection method and anti-fatigue driving auxiliary device |
| CN103661095B (en) * | 2012-09-11 | 2015-12-02 | 财团法人车辆研究测试中心 | The detecting system of driving condition |
| US9351019B2 (en) | 2012-12-27 | 2016-05-24 | Automotive Research & Testing Center | System for detecting vehicle driving state |
| CN103198617A (en) * | 2013-03-26 | 2013-07-10 | 无锡商业职业技术学院 | Fatigue driving warning system |
| CN103606246B (en) * | 2013-11-25 | 2016-08-17 | 奇瑞汽车股份有限公司 | A kind of Vehicular intelligent control loop |
| CN104794856B (en) * | 2014-01-22 | 2018-06-22 | 径卫视觉科技（上海）有限公司 | Driver attention's compositive appraisement system |
| CN104794855B (en) * | 2014-01-22 | 2018-06-22 | 径卫视觉科技（上海）有限公司 | Driver attention's comprehensive evaluating device |
| CN105667489B (en) * | 2014-11-21 | 2018-04-17 | 财团法人车辆研究测试中心 | Electronics fault warning method in brake and system |
| CN106652378A (en) * | 2015-11-02 | 2017-05-10 | 比亚迪股份有限公司 | Driving reminding method and system for vehicle, server and vehicle |
| DE102015221651B4 (en) * | 2015-11-04 | 2018-03-01 | Ford Global Technologies, Llc | Method and system for avoiding concentration errors when driving a motor vehicle |
| CN106652356B (en) * | 2016-12-22 | 2019-03-05 | 深圳市元征科技股份有限公司 | Driver fatigue judgment method and device |
| CN116244664B (en) * | 2023-03-10 | 2023-10-20 | 上海机动车检测认证技术研究中心有限公司 | Responsibility judgment method, device and equipment for intelligent network-connected automobile automatic driving accident and readable storage medium |
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| CN1486878A (en) * | 2002-07-08 | 2004-04-07 | 矢崎总业株式会社 | Dozeproof driving car apparatus |
| JP2009035062A (en) * | 2007-07-31 | 2009-02-19 | Auto Network Gijutsu Kenkyusho:Kk | Drunken driving prevention system, communication unit and on-board radio communication apparatus |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1486878A (en) * | 2002-07-08 | 2004-04-07 | 矢崎总业株式会社 | Dozeproof driving car apparatus |
| JP2009035062A (en) * | 2007-07-31 | 2009-02-19 | Auto Network Gijutsu Kenkyusho:Kk | Drunken driving prevention system, communication unit and on-board radio communication apparatus |
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