CN102163368B - System and method for identifying and monitoring unsafe driving behavior - Google Patents
System and method for identifying and monitoring unsafe driving behavior Download PDFInfo
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- CN102163368B CN102163368B CN201110029010.4A CN201110029010A CN102163368B CN 102163368 B CN102163368 B CN 102163368B CN 201110029010 A CN201110029010 A CN 201110029010A CN 102163368 B CN102163368 B CN 102163368B
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Abstract
The invention relates to a system and a method for identifying and monitoring an unsafe driving behavior and can reduce traffic accident probability caused by the unsafe driving behavior to the largest extent. The system comprises an acceleration transducer, a transmission device, a data processing and comparing device and an output device; the acceleration transducer is arranged on a monitored vehicle and is used for acquiring acceleration data of three directions during running of the vehicle, sending the acceleration data to the data processing and comparing device through the transmission device, and then sending to the output device. The method comprises the following steps of: (1) acquiring the acceleration data of the three directions, namely X, Y and Z in a three-dimensional space during running of the vehicle; (2) building a comparison sample; (3) comparing actual acceleration values of the three directions with the sample to obtain a threshold value of exceeded times; and (4) outputting the data. By the system and the method, safety accident occurrence or probable-occurrence key information is completely recorded, and various probable-occurrence conditions of the accident are comprehensively monitored, so that the purpose of preventing safe liability accidents from the source is really realized.
Description
Technical field
The present invention relates to safe driving of vehicle technical field, especially a kind of identification and supervisory system to unsafe driving behavior, and identification and method for supervising to unsafe driving behavior.
Background technology
The traffic safety liability accident occurring in vehicle operating process, belongs to absolutely the inevitable outcome that unsafe driving behavior causes mostly.Owing to cannot obtaining in time and as far as possible all the real-time monitor data of unsafe driving behavior in Vehicle Driving Cycle, supervision department of professional transport enterprise implements safety education and can only rest on general publicity, explain driver behavior specification and analyze the limited aspect of sending out accident case.Meanwhile, to the analysis of accident case itself, also only may with supposition after the incident be judged as basis, lack true and reliable data and data.This mode can not reflect the difference between individuality, does not have a specific aim, cannot help timely and effectively driver to walk out the unsafe shade of my driving behavior.
Specialty transport enterprise commerial vehicle has the feature of " operation outside separately ".Although driver has all got through the examinations and taken appointment with certificate, former the carrying on as before of following unsafe driving behavior generation is difficult to radical cure:
Vehicle actual motion circumstance complication is changeable, and non-driver textual criticism process can cover completely, and driver, to the deviation occurring between my practical operation behavior and safe driving safety standard requirements, is difficult to self-discovery and implements self-adjustment.
Whether whether the safety of driving behavior, at present all to have an accident as main standard.But, there is not safety responsibility accident, can not illustrate that driving behavior just necessarily meets driving safety working specification.Meanwhile, understanding and the execution of driver to specification also there are differences.
Due to the variation of the aspects such as age, physiology or mental health state, mood, even if outstanding driver also differs and keeps muchly surely its original good driving condition, and driver is difficult to recognize this gradual decay or disappears.
About vehicle driving safety monitoring problem, existing many achievements in research, Chinese invention patent " vehicle running safety intelligence monitoring and controlling device ", application number: 200810034290.6, its invention main points are " in the time that automotive run-off-road travels, providing early warning and alert service "; Chinese invention patent " vehicle security drive monitoring system ", application number: 200810055749.0, its invention main points are " when driver provides warning during in the state such as tired, drunk "; Chinese invention patent " ride safety of automobile supervisory system and method for supervising ", application number: 200510116715.4, its invention main points are " when driving vehicle departs from for a long time the runway of oneself or exists while there is traffic hazard dangerous, sending alarm, to remind driver "; Chinese invention patent " a kind of vehicle security drive monitoring system and method ", application number: 200710098412.3, its invention main points are " detect driver's expression and eyes open and-shut mode, and judge and while being unsuitable for driving, remind this driver " etc.The common ground of above-mentioned patent is: while detecting hazards, remind driver to correct its driver behavior, to ensure traffic safety, belong to real-time monitoring; Its shortcoming is, as long as vehicles failed generation traffic accidents, enterprise security supervision department is just difficult to retrieve routine safety supervision from the record data of magnanimity or educates required unsafe driving behavioural information.
Due to the driver's operation vehicle driving safety liability accident causing of slipping up, with in its driving process, environment or event are observed comprehensively accurately whether, dispose whether in time appropriate closely related.Driver can be observed not comprehensively accurately environment or event, dispose appropriate being called not prompt enough " unsafe driving factor "." unsafe driving factor " is frequent or recurrent when driving, but might not all cause each time safety responsibility accident.Conversely, all safety responsibility accidents, are necessarily included among " unsafe driving factor ".If can find all " unsafe driving factor ", and it is carried out to effective monitoring, just completely likely avoid the generation of driving safety liability accident.
Summary of the invention
The object of this invention is to provide a kind of identification and supervisory system to unsafe driving behavior, and identification and method for supervising to unsafe driving behavior.
When any traffic accidents occurs, the speed in Vehicle Driving Cycle three dimensions X, Y, tri-directions of Z of all showing as has produced sharply and has changed, and wherein, the vehicle forward of advancing is made as X-direction, advances and is laterally made as Y direction, advances and is vertically made as Z-direction.The speed drastic change of directions X, can reflect that simple front overturns, collides, knocks into the back or brake hard; The speed drastic change of Y-direction, can reflect that overturn simple side or the flip-flop of travel direction; The drastic change of Z direction speed, can reflect that vehicle sails pit into or jumps onto projection.The various combination of this three direction speed drastic change, can reflect more complicated vehicle driving safety situation.Therefore, as long as the percentage speed variation (acceleration) of these three directions under complete documentation is just equivalent to record security incident and occurs or contingent key message; As long as monitor one by one the percentage speed variation of these three directions, be just equivalent to monitoring all sidedly the various possibilities that safety responsibility accident occurs; As long as manage the amplitude of the percentage speed variation of controlling these three directions, the various possibilities that are just equivalent to from eliminating the generation of safety responsibility accident are started with, and avoid the generation of safety responsibility accident.
The object of the invention is also to realize by the following technical solutions according to above-mentioned thought:
The identification of unsafe driving behavior and supervisory system, comprise that driving behavior information collecting device, information carrying means, data processing and comparison means, information show or output unit, described information collecting device comprises acceleration transducer, acceleration transducer is connected with information carrying means circuit, information carrying means is connected with data processing and comparison means by wireless signal, and data processing shows with information with comparison means or output unit circuit is connected;
Described acceleration transducer is located on monitored vehicle, the acceleration information of three directions of vehicle three dimensions in acceleration transducer collection vehicle driving process, and data are sent to data processing and comparison means by the information carrying means being located on vehicle, processing and relatively afterwards data show by information or output unit shows.
As the preferred technical solution of the present invention, described information collecting device comprises the acceleration transducer of establishing three directional acceleration data of difference collection vehicle on vehicle.
As the preferred technical solution of the present invention, described acceleration transducer comprises three-dimensional gyroscope.
As the preferred technical solution of the present invention, described information carrying means is connected with data processing and comparison means by wireless network and mutual data transmission.
As the preferred technical solution of the present invention, described data processing and comparison means comprise CPU (central processing unit), storage unit or PC.
As the preferred technical solution of the present invention, described information shows or output unit comprises display, audible-visual annunciator, printer or PC.
As the preferred technical solution of the present invention, described information collecting device also comprises and is located at the device that gathers respectively other driving behavior information (as: pilot control state image, 180 ° of scope images of vehicle direct of travel, vehicle location, time, speed, braking and throttle utilization degree etc.) on vehicle.The information that these devices gather, shows by above-mentioned information carrying means, data processing and comparison means, information equally or output unit is processed.
The identification of unsafe driving behavior and a method for supervising, the method comprises the following steps:
(1) acceleration transducer is installed on vehicle, is used for gathering the acceleration information a of vehicle three dimensions X, Y in driving process, tri-directions of Z
x, a
y, a
z;
(2) outstanding driver's travelling data is carried out setting up mathematical model after statistical study, calculate the peaked average of X, Y, tri-directional acceleration absolute values of Z
as threshold value, set up the comparative sample of monitoring X, Y, tri-directional accelerations variations of Z;
(3) by above-mentioned outstanding driver regulation distance travelled in, its X, Y, tri-directional acceleration a of Z
xi, a
yi, a
zimeasured value and step (2) described in
value compares, and is exceeded
the threshold value beta of number of times
x, β
y, β
z, adopt β
x, β
y, β
zvalue is as passing judgment on the whether safe criterion of driver's driving behavior;
(4) adopt data processing and the comparison means of dedicated analysis software are installed, data processed result is shown by information or output unit shows or prints.
As the preferred technical solution of the present invention, described three directional acceleration threshold values
acquisition methods as follows:
(1) select the outstanding driver who never appears security incident of suitable sample number to form tested colony, on the vehicle of driving at them, acceleration transducer is installed;
(2) making tested colony set out on a journey travels, test and record all tested vehicles under normal transport condition, whole accekerations in its X, Y, tri-directions of Z, get the ratio of 1-10 in average per 100 km distance travelled, filter out the amplitude of front n absolute value maximum in total kilometres, and get the threshold value of average as respective direction acceleration
concrete grammar is as follows:
In formula:
for the peaked mean value (threshold value) of X-direction acceleration absolute value
for the peaked mean value (threshold value) of Y direction acceleration absolute value
for the peaked mean value (threshold value) of Z-direction acceleration absolute value
| a
xi|
maxfor acceleration transducer is to tested colony, get the ratio of 1-10 in average per 100 km distance travelled, filter out i the maximal value that directions X is gone forward in the amplitude of n (for total kilometres) absolute value maximum;
| a
yi|
maxfor acceleration transducer is to tested colony, get the ratio of 1-10 in average per 100 km distance travelled, filter out i the maximal value that Y-direction is gone forward in the amplitude of n (for total kilometres) absolute value maximum;
| a
zi|
maxfor acceleration transducer is to tested colony, get the ratio of 1-10 in average per 100 km distance travelled, filter out i the maximal value that Z direction is gone forward in the amplitude of n (for total kilometres) absolute value maximum;
i＝1，2，3，...n
N is the number of " acceleration amplitude of absolute value maximum " that filter out in tested colony total kilometres.
As the preferred technical solution of the present invention, there is the threshold value beta of unsafe driving behavior in described judgement driver
x, β
y, β
zdefinite method as follows:
(1) tested colony is tested in mileage to X, Y, tri-directional acceleration (a of Z total
x, a
y, a
z) actual test value compare to relevant threshold value one by one, record exceeds threshold value
number of times and with β
x', β
y', β
z' represent;
(2) obtain the β in average per 100 km distance travelled
x', β
y', β
z' value, and respectively with β
x, β
y, β
zrepresent:
β
x, β
y, β
zbe respectively in the distance travelled of regulation, in X, Y, tri-directions of Z, pass judgment on the threshold value whether driver occurs unsafe driving behavior.
As the preferred technical solution of the present invention, the data processed result that described step (4) obtains can also be transferred to the suggestion device being arranged on vehicle in time by information carrying means, and described suggestion device comprises display or audible-visual annunciator.
The invention has the beneficial effects as follows: with respect to prior art, the present invention is in view of " in vehicle traveling process; the frequency that driver's unsafe driving factor occurs; the frequency occurring higher than accident far away ", use Modern Transducer Technology, start with from the driving behavior information acquisition to each driver, identification, press the relevant criterion of running car dynamics and the formulation of human behavior science scheduling theory according to the present invention, extract fully and effectively unsafe driving message part, by comprehensive analysis, find out objectively all " unsafe driving factors ", and the real causes producing.
The present invention adopts the percentage speed variation a of acceleration transducer or three directions of three-dimensional gyroscope survey Vehicle Driving Cycle
x, a
y, a
z, as the monitoring physical quantity of unsafe driving factor; Adopt outstanding driver drives vehicle data are carried out to the mathematical model of setting up after statistical study, calculate three directional accelerations and occur abnormal threshold value
and according to record data are comprehensively analyzed, retrieve " unsafe driving factor " occur correct time section, automatically complete data screening, filtering redundancy section, extract effective information.
Safety regulator can be according to every different situations that exist the driver of unsafe driving behavior to occur under steam, the reason that helps its problem analysis to produce, formulate improvement project, carry out targeted, personalized education, according to:---monitoring is followed the tracks of, and------retraining---monitors the program of following the tracks of again to check result of training, until reach target call in training.Those existence are not suitable for to specialty drives duty factor and corrects invalid driver and carry out as early as possible superseded.Successfully solve a difficult problem of preventing timely and effectively unsafe driving behavior to occur, from source, significantly reduced the probability of the traffic hazard causing because of unsafe driving behavior.
Brief description of the drawings
Below in conjunction with accompanying drawing and specific embodiment, the invention will be further described:
Fig. 1 is the structural representation of identification of the present invention and supervisory system.
Embodiment
As shown in Figure 1, the identification of unsafe driving behavior and supervisory system, comprise that driving behavior information collecting device 4, information carrying means 1, data processing and comparison means 2, information show or output unit 3, described information collecting device 4 comprises acceleration transducer, acceleration transducer is connected with information carrying means 1 circuit, information carrying means 1 is connected with data processing and comparison means 2 by wireless signal, and data processing shows with information with comparison means 2 or output unit 3 circuit are connected.Described acceleration transducer is located on monitored vehicle, the acceleration information of three directions of vehicle three dimensions in acceleration transducer collection vehicle driving process, and data are sent to data processing and comparison means 2 by the information carrying means 1 being located on vehicle, processing and relatively afterwards data show by information or output unit 3 shows.
In the present embodiment, described information collecting device 4 comprises the acceleration transducer of establishing three directional acceleration data of difference collection vehicle on vehicle, or three-dimensional gyroscope.Described information carrying means 1 is connected with data processing and comparison means 2 by wireless network and mutual data transmission.Described data processing and comparison means 2 comprise CPU (central processing unit), storage unit or PC.Described information shows or output unit 3 comprises display, audible-visual annunciator, printer or PC.
In the present embodiment, described information collecting device 4 also comprises establishes the device that gathers respectively other driving behavior information (as: pilot control state image, 180 ° of scope images of vehicle direct of travel, vehicle location, time, speed, braking and throttle utilization degree etc.) on vehicle.The information that these devices gather, shows by above-mentioned information carrying means 1, data processing and comparison means 2, information equally or output unit 3 is processed.
The identification of unsafe driving behavior and a method for supervising, the method comprises the following steps:
(1) acceleration transducer is installed on vehicle, is used for the acceleration information a of vehicle three dimensions X, Y in collection vehicle driving process, tri-directions of Z
x, a
y, a
z;
(2) outstanding driver's travelling data is carried out setting up mathematical model after statistical study, calculate the peaked average of X, Y, tri-directional acceleration absolute values of Z
as threshold value, set up the comparative sample of monitoring X, Y, tri-directional accelerations variations of Z;
(3) by above-mentioned outstanding driver regulation distance travelled in, its X, Y, tri-directional acceleration a of Z
x, a
y, a
zthe absolute value and step (2) of measured value described in
value compares, and is exceeded
the threshold value beta of number of times
x, β
y, β
z, adopt β
x, β
y, β
zvalue is as passing judgment on the whether safe criterion of driver's driving behavior;
(4) adopt data processing and the comparison means of dedicated analysis software are installed, data processed result is shown by information or output unit shows or prints.
Described three directional acceleration threshold values
acquisition methods as follows:
(1) select the outstanding driver who never appears security incident of suitable sample number to form tested colony, on the vehicle of driving at them, acceleration transducer is installed;
(2) making tested colony set out on a journey travels, test and record all tested vehicles under normal transport condition, whole accekerations in its X, Y, tri-directions of Z, get the ratio of 1-10 in average per 100 km distance travelled, filter out the amplitude of front n absolute value maximum in total kilometres, and get the threshold value of average as respective direction acceleration
concrete grammar is as follows:
In formula:
for the peaked mean value (threshold value) of X-direction acceleration absolute value
for the peaked mean value (threshold value) of Y direction acceleration absolute value
for the peaked mean value (threshold value) of Z-direction acceleration absolute value
| a
xi|
maxfor acceleration transducer is to tested colony, get the ratio of 1-10 in average per 100 km distance travelled, filter out i the maximal value that directions X is gone forward in the amplitude of n (for total kilometres) absolute value maximum;
| a
yi|
maxfor acceleration transducer is to tested colony, get the ratio of 1-10 in average per 100 km distance travelled, filter out i the maximal value that Y-direction is gone forward in the amplitude of n (for total kilometres) absolute value maximum;
| a
zi|
maxfor acceleration transducer is to tested colony, get the ratio of 1-10 in average per 100 km distance travelled, filter out i the maximal value that Z direction is gone forward in the amplitude of n (for total kilometres) absolute value maximum;
i＝1，2，3，...n
N is the number of " acceleration amplitude of absolute value maximum " that filter out in tested colony total kilometres.
There is the threshold value beta of unsafe driving behavior in described judgement driver
x, β
y, β
zdefinite method as follows:
(1) tested colony is tested in mileage to X, Y, tri-directional acceleration (a of Z total
x, a
y, a
z) actual test value compare to relevant threshold value one by one, record exceeds threshold value
number of times and with β
x', β
y', β
z' represent.
(2) obtain the β in average per 100 km distance travelled
x', β
y', β
z' value, and respectively with β
x, β
y, β
zrepresent:
β
x, β
y, β
zbe respectively in the distance travelled of regulation, in X, Y, tri-directions of Z, pass judgment on the threshold value whether driver occurs unsafe driving behavior.
The data processed result that described step (4) obtains can also be transferred to the suggestion device being arranged on vehicle in time by information carrying means, and described suggestion device comprises display or audible-visual annunciator.
The present invention is directed to the shortcoming of " as long as vehicles failed generation traffic accidents, enterprise security supervision department is just difficult to retrieve routine safety supervision or educate required unsafe driving behavioural information from the record data of magnanimity ", by gathering and obtain β
x, β
y, β
zvalue, and do following concrete utilization.
Specialty transport enterprise follow following thinking to unsafe driving behavior identify with monitor:
1, when a certain driver is in average per 100 km distance travelled, X, Y, tri-directional acceleration (a of Z
x, a
y, a
z) actual test value exceed threshold value
number of times β
xx, β
yy, β
zzin any one, exceed corresponding threshold value beta
x, β
y, β
ztime, think that this driver exists unsafe driving behavior.
2, transfer this driver drives vehicle record data, find out the acceleration information (a of its X, Y, tri-directions of Z
x, a
y, a
z) exceed threshold value
the all corresponding time period.
3, according to these driver drives vehicle record data, recall all driving behavior information recording data corresponding with these time periods, as: the data such as pilot control state image, 180 ° of scope images of vehicle direct of travel, vehicle location, time, speed, braking and throttle utilization degree.
4, according to above-mentioned data, driver's driving behavior is comprehensively analyzed, therefrom find out the reason of unsafe driving behavior generation, analyze the consequence that it may cause.
Safety regulator is according to every different situations that exist the driver of unsafe driving behavior to occur under steam, the reason that helps its problem analysis to produce, formulate improvement project, carry out targeted, personalized education, according to:---monitoring is followed the tracks of, and------retraining---monitors the program of following the tracks of again to check result of training, until reach target call in training.Those existence are not suitable for to specialty drives duty factor and corrects invalid driver and carry out as early as possible superseded.Successfully solve a difficult problem of preventing timely and effectively unsafe driving behavior to occur, from source, significantly reduced the probability of the traffic hazard causing because of unsafe driving behavior.
Above-mentioned supervision will also be carried out again and again throughout the year, by monitoring and education long-term, uninterrupted, that go round and begin again, help driver to update driver behavior, the most effective also behavior of specification safe driving enduringly; Or eliminate and be unsuitable for the personnel that specialty is driven in time, and then realize to greatest extent transport production safety target.
Claims (2)
1. the identification of a unsafe driving behavior and method for supervising, comprise identification and the supervisory system of unsafe driving behavior, this system comprises that driving behavior information collecting device, information carrying means, data processing and comparison means, information show or output unit, it is characterized in that: described information collecting device comprises acceleration transducer, acceleration transducer is connected with information carrying means circuit, information carrying means is connected with data processing and comparison means by wireless signal, and data processing shows with information with comparison means or output unit circuit is connected; Described acceleration transducer is located on monitored vehicle, the acceleration information of three directions of vehicle three dimensions in acceleration transducer collection vehicle driving process, and data are sent to data processing and comparison means by the information carrying means being located on vehicle, processing and relatively afterwards data show by information or output unit shows; Described information collecting device comprises the acceleration transducer that is located at three directional acceleration data of difference collection vehicle on vehicle; Described acceleration transducer comprises three-dimensional gyroscope; Described information carrying means is connected with data processing and comparison means by wireless network and mutual data transmission; Described data processing and comparison means comprise CPU (central processing unit), storage unit or PC; Described information shows or output unit comprises display, audible-visual annunciator, printer or PC; It is characterized in that said method comprising the steps of:
(1) acceleration transducer is installed on vehicle, is used for the acceleration information a of vehicle three dimensions X, Y in collection vehicle driving process, tri-directions of Z
x, a
y, a
z;
(2) outstanding driver's travelling data is carried out setting up mathematical model after statistical study, calculate the peaked average of X, Y, tri-directional acceleration absolute values of Z
as threshold value, set up the comparative sample of monitoring X, Y, tri-directional accelerations variations of Z;
(3) by above-mentioned outstanding driver regulation distance travelled in, its X, Y, tri-directional acceleration (a of Z
x, a
y, a
z) the absolute value and step (2) of measured value described in
value compares, and is exceeded
the threshold value beta of number of times
x, β
y, β
z, adopt β
x, β
y, β
zvalue is as passing judgment on the whether safe criterion of driver's driving behavior;
(4) adopt data processing and the comparison means of dedicated analysis software are installed, data processed result is shown by information or output unit shows or prints.
2. the identification of unsafe driving behavior and method for supervising according to claim 1, is characterized in that: the data processed result that described step (4) obtains is also transferred to by information carrying means the suggestion device being arranged on vehicle in time.
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|---|---|---|---|
| CN201110029010.4A CN102163368B (en) | 2010-05-10 | 2011-01-18 | System and method for identifying and monitoring unsafe driving behavior |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010173356 CN101866502A (en) | 2010-05-10 | 2010-05-10 | Identification and monitoring system and method of unsafe driving behaviors |
| CN201010173356.7 | 2010-05-10 | ||
| CN201110029010.4A CN102163368B (en) | 2010-05-10 | 2011-01-18 | System and method for identifying and monitoring unsafe driving behavior |
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| Publication Number | Publication Date |
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| CN102163368A CN102163368A (en) | 2011-08-24 |
| CN102163368B true CN102163368B (en) | 2014-10-15 |
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| CN 201010173356 Pending CN101866502A (en) | 2010-05-10 | 2010-05-10 | Identification and monitoring system and method of unsafe driving behaviors |
| CN201110029010.4A Expired - Fee Related CN102163368B (en) | 2010-05-10 | 2011-01-18 | System and method for identifying and monitoring unsafe driving behavior |
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| CN102163368A (en) | 2011-08-24 |
| CN101866502A (en) | 2010-10-20 |
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