CN101416877A - Alarming device for driver fatigue and attention dispersed state - Google Patents
Alarming device for driver fatigue and attention dispersed state Download PDFInfo
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- CN101416877A CN101416877A CNA2008102257895A CN200810225789A CN101416877A CN 101416877 A CN101416877 A CN 101416877A CN A2008102257895 A CNA2008102257895 A CN A2008102257895A CN 200810225789 A CN200810225789 A CN 200810225789A CN 101416877 A CN101416877 A CN 101416877A
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Abstract
The invention relates to a device for alarming the fatigue and distraction of a driver, and pertains to the technical field of automobile safety. The device comprises: a microprocessor with a serial interface communication module for receiving a serial interface communication data with the information about the fatigue and distraction of the driver; after being judged, the received serial interface communication data is transmitted to P-typed field effect tubes according to a communication protocol; a plurality of P-typed field effect tubes are used to control the start and stop of various alarming devices; and a luminescent diode, a sounder, a vibration motor and an odor generator are used to alarm when the driver is fatigued or the attention thereof is diverted. The device has the advantages of being easy to detect and understand and high acceptability, and is applicable to giving alarm in the driving of various vehicles after the driver falls to fatigue or the attention is diverted.
Description
Technical field
The present invention relates to a kind of device that driver fatigue and distractibility are reported to the police of being used for, belong to the automotive safety technical field.
Background technology
In the process of the actual steering vehicle of driver, most driver not can be appreciated that the influence to their vehicle control force of self fatigue state and distractibility state.People are normally not enough to the judgement of themselves behavioral competence.Most of drivers in its driving procedure to the feeling of its driving ability, even if some driver does not draw attention after the influence of the variation of noticing oneself state to vehicle timely yet than in fact much better.And show that according to the vehicle accident data analysis driver's fatigue driving and distractibility are the major reasons that causes traffic fatalities.At present seldom at the alarm method of driver fatigue state and distractibility state, have minority motor corporation that similarly research was arranged, for example [patent publication No.: CN 1627915A] mentioned the method for utilizing sound and seat vibration to carry out early warning in the management method patent of Volvo Aktiebolaget at driver's attention loads.
For distractibility, driver's degree of fatigue can be divided into different grades from shallow to deep, most driver can spontaneously recognize self fatigue in driving procedure, and the fatigue alleviating that takes appropriate measure to, and for example adjusts posture, opens vehicle window etc.But this self regulation often can't bring about the desired effect to the darker driver of degree of fatigue.Studies show that the driver who is in the different fatigue state has very big difference to the response characteristic of warning message, therefore need select different type of alarms for use according to driver's different fatigue grade.
Because the complexity of fatigue state and distractibility change of state will reach best warning effect, at first needs to consider the perceptibility of various type of alarms, for example Shan Shuo light is easier of driver's perception than the light that does not have to change; Secondly need to consider the intelligibility of various type of alarms, for example audio alert is understood than the easier driver of allowing of electronics sound; Also need to consider the pleasant property of type of alarm in addition, promptly acceptable, for example under the severe fatigue state, the warning of excessive volume might make the driver get a fright, and causes vehicle accident thereby cause dangerous operation.Therefore the warning system that is used for driver fatigue and distractibility state must have above various performance concurrently.
Summary of the invention
The objective of the invention is to propose a kind of device that driver's fatigue and distractibility state are reported to the police of being used for, at driver different fatigue and distractibility state, warning strategy and type of alarm reasonable in design improve vehicle safety, the generation that avoids traffic accident.
The present invention proposes is used for device that driver's fatigue and distractibility are reported to the police, comprising:
The microprocessor that has the serial communication module, be used to receive the serial communication data of driver fatigue and distractibility status information, and the serial communication data that receive are judged that the back exports P type field effect transistor to according to communications protocol, the microprocessor that has the serial communication module is connected with the grid of P type field effect transistor;
A plurality of P type field effect transistor, be used to control the startup of every alarm device and close, the grid of a plurality of P type field effect transistor links to each other with light emitting diode, acoustical generator, vibrating motor and abnormal smells from the patient generator respectively, and the grid of a plurality of P type field effect transistor links to each other with the microprocessor that has the serial communication module;
Light emitting diode is used for giving visual warning message when tired and the distractibility to the driver;
Acoustical generator is used for giving acoustically warning message when tired and the distractibility to the driver;
Vibrating motor is used for giving warning message in the sense of touch when tired and the distractibility to the driver;
The abnormal smells from the patient generator is used for giving warning message in the olfactory sensation when tired and the distractibility to the driver.
The present invention proposes is used for device that driver fatigue and distractibility state are reported to the police, and its advantage is:
1, adopted the classifying alarm strategy.This strategy of reporting to the police can use different warning means to report to the police at the degree of driver's fatigue and distractibility state when carrying out the driving task.Improved the warning specific aim, enriched alarm content, make the warning effect for common warning product more rationally, more effective.
2, pleasantization type of alarm.In conjunction with the perception of driver in actual driving procedure, be evaluation index with perceptibility, the property understood and acceptance, the concrete form and the working method of every warning means of using among the present invention have been carried out optimal design.Obtain the concrete parameter (as operating frequency, the intensity of reporting to the police, position etc. is set) of every warning means through a large amount of tests, for the warning effect that realizes expection provides effective assurance.
Therefore this alarm device have easily discover, easy characteristics such as understanding, acceptance height, be applicable in the process of moving the warning after the driver enters fatigue or the distractibility state occurs to all kinds vehicle.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
The specific embodiment
The present invention proposes is used for device that driver fatigue and distractibility state are reported to the police, and its structural representation comprises as shown in Figure 1:
The microprocessor that has the serial communication module, be used to receive the serial communication data of driver fatigue and distractibility status information, and the serial communication data that receive are judged that the back exports P type field effect transistor to according to communications protocol, the microprocessor that has the serial communication module is connected with the grid of P type field effect transistor;
A plurality of P type field effect transistor, be used to control the startup of every alarm device and close, the drain electrode of a plurality of P type field effect transistor links to each other with light emitting diode, acoustical generator, vibrating motor and abnormal smells from the patient generator respectively, and the grid of a plurality of P type field effect transistor links to each other with the microprocessor that has the serial communication module;
Light emitting diode is used for giving visual warning message when tired and the distractibility to the driver;
Acoustical generator is used for giving acoustically warning message when tired and the distractibility to the driver;
Vibrating motor is used for giving warning message in the sense of touch when tired and the distractibility to the driver;
The abnormal smells from the patient generator is used for giving warning message in the olfactory sensation when tired and the distractibility to the driver.
In apparatus of the present invention, the microprocessor that has a serial communication module adopts the main control chip of the microprocessor of the MC9S08DZ60 model that Freescale company produces as the alarm device central controller.Field effect transistor adopts IRFZ48N Series P NP type field effect transistor, this model field effect transistor conducting when giving the grid low level.Light emitting diode and vibrating motor adopt the common type product on the market.Acoustical generator and abnormal smells from the patient generator also can adopt similar products like on the market.
In apparatus of the present invention, the situation of driving according to reality is divided into slight fatigue, moderate fatigue, the tired Three Estate of severe with driver's tired grade, and driver's distractibility is divided into a grade.Driver's status information need be obtained by the driver status monitoring system, and apparatus of the present invention are reported to the police according to the driver status information of obtaining.In slight fatigue state, adopt the abnormal smells from the patient generator as main warning means.Under the moderate fatigue state, adopt acoustical generator as main warning means, be aided with light emitting diode as the additional alarm means, two kinds of means act on simultaneously reports to the police to the driver.Under the severe fatigue state, adopt vibrating motor and acoustical generator as main warning means, be aided with light emitting diode as the additional alarm means, three kinds of means act on simultaneously reports to the police to the driver.Under driver's distractibility state, adopt acoustical generator and vibrating motor as the warning means.
The concrete working method of above-mentioned various alarm devices is as follows.
Light emitting diode: adopt three kinds of color LEDs to represent driver's state.Wherein, green expression waking state, yellow expression moderate fatigue state, red expression severe fatigue state (because in the design of the strategy of reporting to the police, therefore the slight tired means that do not adopt visual alarm do not have slight tired color showing).When the driver was in the moderate fatigue state, yellow light-emitting diode glimmered with the frequency of 1Hz, continued 3 seconds, and normal bright 10 seconds then, glimmer again again, circulate with this, break away from this state up to the driver; When the driver was in the severe fatigue state, red light emitting diodes glimmered with the frequency of 2Hz, continued 5 seconds, and normal bright 5 seconds then, glimmer again again, circulate with this, break away from this state up to the driver.
Acoustical generator: the female voice that adopts standard mandarin is as alarm voice.When the driver enters the moderate fatigue state, before alarm voice is play, at first play the slower simulation sound of frequency (for example " too " sound), note to cause the driver, then with the following warning message of medium word speed repeat playing 2 times: " please note! You have entered fatigue state! ".When the driver enters the severe fatigue state, before alarm voice is play, at first play frequency two acoustic simulation sounds faster, to cause driver's attention, then with the following warning message of medium fast word speed repeat playing 2 times: " note! You have entered serious fatigue state, the rest of please at once stopping! ".When the driver is in the distractibility state and moderate fatigue warning process similar, only change alarm voice information and be: " would you please note the place ahead! ".At above three kinds of situations, if the back driver's that reports to the police state does not change, then with repetition of alarms behind the certain hour of interval, blanking time is different with driver's virtual condition.
Vibrating motor: the rated speed of motor itself is 9000rpm, and the frequency repetition opening and closing vibrating motor with 1Hz breaks away from this state up to the driver.
The abnormal smells from the patient generator: adopt mint flavored fragrance, start when the driver is in slight fatigue state obtaining, continuous injection stops for 3 times.
In an embodiment of the present invention, the installation site of apparatus of the present invention in automobile is as follows:
The abnormal smells from the patient generator, 1, be placed in the below of steering wheel, fragrance sprays towards driver's face.
Light emitting diode, is placed in driver's the optimum visual interval by 3.General areas is under the driver normal sitting position state, be as the criterion with binocular sight line center, about each 30 the degree, up and down each 25 the degree intervals.
Acoustical generator, 2, be placed in the pilot set bottom, a sounding place is each side arranged.
Vibrating motor, 8, be placed in driver seat inside, the position is at driver's thigh bottom and waist, wherein 4 be positioned at about about 10CM behind the big leg joint, other 4 are positioned at waist by locating.
This alarm device is by the serial communication function in the MC9S08DZ60 model microprocessor of Freescale company production, the RS-232-C serial ports electrical standard of employing standard and agreement and special driver status monitoring system are carried out communication to obtain driver's status information.The definition of its communications protocol is described below in conjunction with the concrete communication process of serial ports.
After the driver status monitoring system detects driver's fatigue or distractibility state, utilize serial ports to send infomational message to microprocessor, in order to prevent the generation of interfering data, the first step in the communications protocol design has adopted authentication mechanism, be that monitoring system must at first send two frame data that defined, microprocessor only receives these two frame data and verifies and just begins to accept the data that it sends later after errorless, be the real fatigue and the information data of distractibility state, if monitoring system does not send these two frame data that are used to verify, then microprocessor is not accepted any data that monitoring system sends.These two frame data are defined as: first frame data: 0xFF (0x represents 16 systems, down together), promptly
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
After the microprocessor affirmation is errorless, begin to prepare to receive the 2nd frame, otherwise clear serial ports receiving register.
Monitoring system sends second frame: 0xEE, promptly
| 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 |
After the microprocessor affirmation was errorless, the beginning began to prepare to receive the 3rd frame, otherwise clear serial data depositor.After receiving these frame data, microprocessor will be replied receive status to monitoring system, is a frame acknowledgement data: 0x01; Expression as follows can have been accepted it to the monitoring information of driver status.
| ? 0 | ? 0 | ? 0 | ? 0 | ? 0 | ? 0 | ? 0 | ? 1 |
Monitoring system is after the affirmation information that receives the microprocessor transmission, the beginning transmission control frame, i.e. all control informations to the warning means are included in this frame the inside, shown in it thes contents are as follows, wherein x represents the some values in 0 or 1, the figure place of numeral information in the bracket, when not receiving the affirmation information of microprocessor, monitoring system constantly repeats to send above two frame data.
| 0(8) | 0(7) | X(6) | X(5) | X(4) | X(3) | X(2) | X(1) |
The concrete implication of control frame is as follows:
First: the control vibrating motor.0: vibrating motor stops; 1: vibrating motor is opened.
Second: control fragrance generator.0: the fragrance generator does not spray; 1: the fragrance generator sprays fragrance.
The 3rd: the control acoustical generator.0: acoustical generator work; 1: acoustical generator stops.
The 4th: the control red light emitting diodes.0: light emitting diode extinguishes; 1: light emitting diode is opened.
The 5th: the control yellow light-emitting diode.0: light emitting diode extinguishes; 1: light emitting diode is opened.
The 6th: the control green LED.0: light emitting diode extinguishes; 1: light emitting diode is opened.
Seven, eight: standby.
When microprocessor receives the Serial Port Information of above definition, just can carry out next step control after getting access to driver's concrete fatigue and distractibility state thus.In the process of control warning means, the serial ports of microprocessor is being accepted the judgement information of monitoring system to driver status always, at any time change the warning means, monitor the driver up to monitoring system and be returned to waking state or attention collected state, send the Serial Port Information that representative stops.Promptly stop frame: 0x00, as follows:
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
In case receive this frame data, microprocessor is also replied a frame and is represented to receive this order, and the out-of-work information of control warning means: 0x02 is as follows:
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
Monitoring system also stops transmission and stops frame after receiving these frame data, and whole communication finishes.
Claims (1)
1, a kind of device that driver fatigue and distractibility state are reported to the police of being used for is characterized in that this device comprises:
The microprocessor that has the serial communication module, be used to receive the serial communication data of driver fatigue and distractibility status information, and the serial communication data that receive are judged that the back exports P type field effect transistor to according to communications protocol, the microprocessor that has the serial communication module is connected with the grid of P type field effect transistor;
A plurality of P type field effect transistor, be used to control the startup of every alarm device and close, the drain electrode of a plurality of P type field effect transistor links to each other with light emitting diode, acoustical generator, vibrating motor and abnormal smells from the patient generator respectively, and the grid of a plurality of P type field effect transistor links to each other with the microprocessor that has the serial communication module;
Light emitting diode is used for giving visual warning message when tired and the distractibility to the driver;
Acoustical generator is used for giving acoustically warning message when tired and the distractibility to the driver;
Vibrating motor is used for giving warning message in the sense of touch when tired and the distractibility to the driver;
The abnormal smells from the patient generator is used for giving warning message in the olfactory sensation when tired and the distractibility to the driver.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008102257895A CN101416877A (en) | 2008-11-13 | 2008-11-13 | Alarming device for driver fatigue and attention dispersed state |
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| CNA2008102257895A CN101416877A (en) | 2008-11-13 | 2008-11-13 | Alarming device for driver fatigue and attention dispersed state |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103661396A (en) * | 2012-08-30 | 2014-03-26 | 罗伯特·博世有限公司 | Interactive attentiveness enhancement |
| CN103747722A (en) * | 2012-06-05 | 2014-04-23 | 博伊雷尔有限责任公司 | Stress and burn-out analysis and diagnostic device |
| CN103858153A (en) * | 2011-09-30 | 2014-06-11 | 宝马股份公司 | Vehicle having a device for influencing the attentiveness of the driver and for determining the viewing direction of the driver |
| CN104146722A (en) * | 2014-08-18 | 2014-11-19 | 吉林大学 | Driving fatigue detecting and grading early warning device and method based on head signals |
| CN106236046A (en) * | 2016-09-05 | 2016-12-21 | 合肥飞鸟信息技术有限公司 | Driver fatigue monitoring system |
| CN107463122A (en) * | 2016-05-02 | 2017-12-12 | 本田技研工业株式会社 | Vehicle control system, control method for vehicle and wagon control program product |
| CN108656900A (en) * | 2018-03-27 | 2018-10-16 | 斑马网络技术有限公司 | Vehicle-mounted smell generation system and its application |
| CN109591824A (en) * | 2018-11-22 | 2019-04-09 | 上海为森车载传感技术有限公司 | A kind of safety assistant driving method |
| CN109948554A (en) * | 2019-03-21 | 2019-06-28 | 浙江中科正方电子技术有限公司 | Vehicle information management system and method |
| CN111450380A (en) * | 2020-03-30 | 2020-07-28 | 重庆大学 | Driving fatigue intelligent detection warning awakening system based on near-infrared brain function imaging |
| CN116030595A (en) * | 2021-10-26 | 2023-04-28 | 上海擎感智能科技有限公司 | Fatigue driving warning method, device and system |
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2008
- 2008-11-13 CN CNA2008102257895A patent/CN101416877A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103858153A (en) * | 2011-09-30 | 2014-06-11 | 宝马股份公司 | Vehicle having a device for influencing the attentiveness of the driver and for determining the viewing direction of the driver |
| CN103858153B (en) * | 2011-09-30 | 2016-10-19 | 宝马股份公司 | Have the attention for affecting driver and for determining the vehicle of the equipment of the line of vision of driver |
| CN103747722A (en) * | 2012-06-05 | 2014-04-23 | 博伊雷尔有限责任公司 | Stress and burn-out analysis and diagnostic device |
| CN103661396A (en) * | 2012-08-30 | 2014-03-26 | 罗伯特·博世有限公司 | Interactive attentiveness enhancement |
| CN103661396B (en) * | 2012-08-30 | 2018-06-29 | 罗伯特·博世有限公司 | Interactive attention improves |
| CN104146722B (en) * | 2014-08-18 | 2017-02-15 | 吉林大学 | Driving fatigue detecting and grading early warning method based on head signals |
| CN104146722A (en) * | 2014-08-18 | 2014-11-19 | 吉林大学 | Driving fatigue detecting and grading early warning device and method based on head signals |
| CN107463122A (en) * | 2016-05-02 | 2017-12-12 | 本田技研工业株式会社 | Vehicle control system, control method for vehicle and wagon control program product |
| CN106236046A (en) * | 2016-09-05 | 2016-12-21 | 合肥飞鸟信息技术有限公司 | Driver fatigue monitoring system |
| CN108656900A (en) * | 2018-03-27 | 2018-10-16 | 斑马网络技术有限公司 | Vehicle-mounted smell generation system and its application |
| CN109591824A (en) * | 2018-11-22 | 2019-04-09 | 上海为森车载传感技术有限公司 | A kind of safety assistant driving method |
| CN109948554A (en) * | 2019-03-21 | 2019-06-28 | 浙江中科正方电子技术有限公司 | Vehicle information management system and method |
| CN111450380A (en) * | 2020-03-30 | 2020-07-28 | 重庆大学 | Driving fatigue intelligent detection warning awakening system based on near-infrared brain function imaging |
| CN116030595A (en) * | 2021-10-26 | 2023-04-28 | 上海擎感智能科技有限公司 | Fatigue driving warning method, device and system |
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Open date: 20090429 |