CN109878415A - A kind of driver's two-hand positions detection alarm system and method and vehicle based on it - Google Patents
A kind of driver's two-hand positions detection alarm system and method and vehicle based on it Download PDFInfo
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- CN109878415A CN109878415A CN201910228083.2A CN201910228083A CN109878415A CN 109878415 A CN109878415 A CN 109878415A CN 201910228083 A CN201910228083 A CN 201910228083A CN 109878415 A CN109878415 A CN 109878415A
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- hand positions
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Abstract
The invention discloses a kind of driver's two-hand positions detection alarm system and based on its method and vehicle, including pressure acquisition module, abnormality detection module, warning note module and brake control module；Pressure acquisition module is connect with abnormality detection module, and abnormality detection module is connect with warning note module, and warning note module is connected with brake control module；Pressure acquisition module is used to acquire the pressure signal for driver's two-hand positions that steering wheel is subject to；Abnormality detection module is for judging whether driver's two-hand positions are abnormal；When abnormality detection module judges that driver's two-hand positions are abnormal, warning note module starts；Brake control module is used to read that abnormality detection module judges as a result, still having exception when reading driver's two-hand positions, brake control module controls the parking of brake system automatic emergency.The abnormal driving behavior of driver's both hands can be detected and alert driver safety before automobile is caused danger and driven, the probability that traffic accident occurs for automobile is reduced.
Description
Technical field
The invention belongs to driver's driving behavior detection technique fields, are related to a kind of driver's two-hand positions detection report
Alert system and method and vehicle based on it.
Background technique
As science and technology is constantly progressive, people's living standard is continuously improved, and automobile has become the necessity of people's life.When
Galloping on road, driver must both hands correctly control steering wheel, just can guarantee traffic safety.However, for
Some new hands that can have just driven, since nervous for the moment or carelessness, the correct position for holding steering wheel to both hands cannot understand very well,
Mistake is put in the position for holding steering wheel, if steering wheel cannot correctly be held, very big safety will be brought to driving procedure
Hidden danger.In addition, according to statistics, 80% driver drives have the habit of making and receiving calls, only driven sometimes with singlehanded, or even have
A little drivers directly unclamp both hands, do not pay attention to slightly will car crash, bring on a disaster to family.
Currently, automotive interior ensures many such as common safety belts of the measure of driver's driving safety, air bag
Deng, these all when automobile faces a danger, have ensured driver's personal safety to a certain degree, but all not in dangerous arriving
Preceding prompting driver, carries out effective prevention.
Summary of the invention
In order to overcome the problems of the above-mentioned prior art, the purpose of the present invention is to provide a kind of driver's two-hand positions
Alarm system and method and vehicle based on it are detected, driver can be reminded before danger is arrived, carry out driver
Effect prevention.
The present invention is to be achieved through the following technical solutions:
A kind of driver's two-hand positions detection alarm system, including pressure acquisition module, abnormality detection module, warning note
Module and brake control module；Pressure acquisition module is connect with abnormality detection module, abnormality detection module and warning note module
Connection, warning note module are connected with brake control module；
Pressure acquisition module is mounted in steering wheel, and the pressure for acquiring driver's two-hand positions that steering wheel is subject to is believed
Number；
Abnormality detection module is for judging whether driver's two-hand positions are abnormal；
When abnormality detection module judges driver's two-hand positions exception, warning note module is for prompting driver's both hands
Malposition；
Brake control module is connect with abnormality detection module, and brake control module is connect with brake system, control for brake mould
Block is used to read that abnormality detection module judges as a result, still having exception, control for brake when reading driver's two-hand positions
Module is for controlling the parking of brake system automatic emergency.
Further, pressure acquisition module is connected with diaphragm pressure sensor.
Further, pressure acquisition module is laid in and 3 points two positions of steering wheel at 9 points.
Further, abnormality detection module is detection circuit, when detection circuit detects at 9 points and 3 points have pressure signal,
Judge that driver's two-hand positions are normal.
Further, warning note module includes warning circuit and alarm, and warning circuit is connected with alarm, warning circuit
For controlling the opening and closing of alarm.
Further, alarm includes voice guard and/or visual alarm.
Further, visual alarm is located in instrument board, and voice guard is connect with automobile audio.
Further, brake control module uses the single-chip microcontroller of model AT89S51.
The invention also discloses the alarm method based on above-mentioned driver's two-hand positions detection alarm system, including it is following
Step:
1) pressure signal for driver's two-hand positions that pressure acquisition module acquisition steering wheel is subject to；
2) abnormality detection module receives the pressure signal of pressure acquisition module acquisition, judges whether driver's two-hand positions are different
Often；If it is normal, and vehicle is also in the process of moving, then abnormality detection module continues to judge whether driver's two-hand positions are different
Often；If abnormal, start warning note module immediately, start to alarm；
3) after alarming, if driver restores normal behaviour, and vehicle is also in the process of moving, then abnormality detection module after
It is continuous to judge whether driver's two-hand positions are abnormal；Otherwise, brake control module starts vehicle automatic brake program, control brake system
System stops vehicle brake to vehicle.
The invention also discloses a kind of vehicle, which is equipped with above-mentioned driver's two-hand positions detection alarm system.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of driver's two-hand positions disclosed by the invention detect alarm system, including pressure acquisition module, abnormality detection
Module, warning note module and brake control module；Driver's two-hand positions that pressure acquisition module acquisition steering wheel is subject to
Pressure signal；Abnormality detection module receives the collected pressure signal of pressure acquisition module, then judges driver's two-hand positions
Whether abnormal, when abnormality detection module judges that driver's two-hand positions are abnormal, warning note module prompts driver's two-hand positions
Abnormal, then brake control module reads still depositing as a result, working as and reading driver's two-hand positions for abnormality detection module judgement
In exception, brake control module controls the parking of brake system automatic emergency.The present invention passes through the mating reaction of four modules, passes through
It whether abnormal detects driver's two-hand positions, judges whether correctly hold steering wheel when driver's driving, otherwise give and report
Alert prompt and emergency brake guarantee traffic safety with this specification driving behavior.The detection alarm system can detect driver
The abnormal driving behavior of both hands, and driver safety driving can be alerted before automobile is caused danger, then automobile will be reduced
The probability of traffic accident occurs, ensures the safety of passenger inside the vehicle and driver and automobile.
Further, acquisition module is connect with diaphragm pressure sensor, acquires pressure signal, and diaphragm pressure sensor has amount
The features such as journey is small, high sensitivity, good anti-interference, is able to detect that tiny signal, as long as driver's both hands are placed on steering wheel
On, pressure sensor can detect pressure signal.
Further, diaphragm pressure sensor is laid in and 3 points two positions of steering wheel at 9 points, is because only that 9: 3 points
Formula is only and correctly holds steering wheel mode, and this mode is most reasonable, most correct hold, because this hold is convenient for making
It accurately reacts, can especially accomplish the steering of amplitude peak when meeting dodge car.
Further, only when detection circuit detects at 9 points and have pressure signal, it could judge driver's both hands at 3 points
Position is normal, because only that such case can illustrate that driver's both hands are held on the steering wheel, remaining situation or be exactly single
, all there is security risk in hand grip or be exactly both hands departing from steering wheel.
Further, warning note module includes warning circuit and alarm, and warning circuit controls the opening and closing of alarm, passes through
Sound and light two ways carry out double warning, and interior driver and passenger is reminded to pay attention to timely self-protection.
The pressure signal for driver's two-hand positions that alarm method disclosed by the invention, first acquisition steering wheel are subject to, and
Judge that driving behavior with the presence or absence of exception, if there is abnormal behavior, then starts warning note mould by abnormality detection module
Block then starts vehicle automatic brake program if driver fails to recover from abnormal behaviour, until vehicle stall closes
Close system；If driver restores normal behaviour, and vehicle is also in the process of moving, and abnormality detection module continues to test driver
Two-hand positions are with the presence or absence of exception, and alarm procedure is quick, accuracy of judgement, guarantee that driver can make in time and successfully manage, protect
Hinder the safety of passenger inside the vehicle and driver and automobile.
There are vehicle disclosed by the invention above-mentioned driver's two-hand positions to detect alarm system, and vehicle performance is more perfect,
It is powerful, it can ensure the safety of driver and passenger.
Detailed description of the invention
Fig. 1 is system module functional block diagram of the invention；
Fig. 2 is pressure sensor scheme of installation of the invention；
Fig. 3 is system operational flow diagram of the invention；
Fig. 4 is visual alarm mounting structure schematic diagram of the invention；
Fig. 5 is detection circuit schematic diagram of the invention；
Fig. 6 is warning circuit schematic diagram of the invention.
Wherein: 1 is steering wheel；2 be diaphragm pressure sensor；3 be instrument board；4 be visual alarm.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of automobile person of sailing two-hand positions of the invention detect alarm system, it include four modules, respectively
It is pressure acquisition module, abnormality detection module, warning note module and brake control module.Pressure acquisition module and abnormality detection
Module connection, abnormality detection module are connect with warning note module, and warning note module is connected with brake control module；Pressure is adopted
Collection module is mounted in steering wheel 1, for acquiring the pressure signal for driver's two-hand positions that steering wheel 1 is subject to；Abnormality detection
Module is used for the pressure signal by judging steering wheel 1 to judge whether driver's two-hand positions are abnormal with the presence or absence of abnormal；When
Abnormality detection module judges that driver's two-hand positions are abnormal, and warning note module is for prompting driver's two-hand positions abnormal；System
Dynamic control module is connect with abnormality detection module, and brake control module is connect with brake system, and brake control module is for reading
The judgement of abnormality detection module still has exception as a result, working as and reading driver's two-hand positions, and brake control module is for controlling
Brake system automatic emergency parking processed.
By detecting the pressure signal of driver's two-hand positions, judge that driver holds steering wheel 1 in driving and is
It is no correct, warning note is otherwise given, with this specification driving behavior, guarantees traffic safety.
The present invention is based on clock scale, how analysis driver correctly holds steering wheel 1.The side of driver's holding steering wheel 1
Formula has very much, and only 9: 3 point types, which are only, correctly holds 1 mode of steering wheel.Will two hands be symmetrically held in 1 liang of steering wheel
9 points of side and 3 o'clock position, thumb is taken naturally to be placed on 1 inner ring wall of steering wheel.This mode is most reasonable, most correct hold,
Because this hold is most safe, accurately reacted convenient for making, can especially accomplish turning for amplitude peak when meeting dodge car
To.Other are all the modes of mistake such as 10: 4 point types, 10: 2 point types, 7: 5 point types and singlehanded hold formula etc..
The pressure signal that 9 points and 3 points of detection direction disk is divided into following 4 kinds of situations:
1) in T time section, 9 points and 3 points can detect pressure signal；
2) in T time section, only 9 points can detect pressure signal；
3) in T time section, only 3 points can detect pressure signal；
4) in T time section, it can not detect that 9 points and 3 press force signal.
T time section generally takes 10 seconds, in above situation, 1) it is the detection of the correct hand steered steering wheel 1 of driver that only there is something special
As a result, i.e. two-hand positions are normal；Situation 2), 3) and 4) be the hand steered steering wheel 1 of driver's mistake testing result, i.e. both hands position
Set exception.
Pressure acquisition module is connect with collection 1 internal membrane pressure sensor 2 of steering wheel, pressure signal is acquired, for abnormal inspection
It surveys module and distinguishes whether driver's two-hand positions are normal.2 installation site of diaphragm pressure sensor is as shown in Fig. 2, respectively in direction
9 points and 3 points two location arrangements of disk.
In measurement process, pressure acts directly on the diaphragm of sensor diaphragm pressure sensor, make diaphragm generate with
The directly proportional micro-displacement of pressure medium, makes the resistance of sensor change, while detecting this variation by electronic circuit, and
Conversion output one corresponds to the standard signal of this pressure.
Abnormality detection module passes through the pressure signal for judging 9 points and 3 positions of steering wheel, double to different types of driver
Hand abnormal position is distinguished.
After determining driver's two-hand positions exception, abnormality detection module sends a signal to warning note module, and alarm mentions
Show module once obtaining driver's two-hand positions exception, immediately starts alarm.Alarm includes voice guard and/or light
Alarm 4 prompts driver's both hands to hold steering wheel 1 for prompting driver and passenger dangerous.If driver's both hands
Restore normal position, then system automatically terminates alarm.
As shown in figure 4, visual alarm 4 is mounted in instrument board 3, voice guard is issued by connecting automobile audio.
By vision and sense of hearing double warning, interior driver and passenger is reminded to pay attention to timely self-protection.
As shown in figure 5, detecting diaphragm pressure sensor pressure signal by the circuit, believe through amplifying circuit output voltage
Number；When the voltage signal of amplifying circuit output is greater than VREFWhen, warning circuit issues sound-light alarm, and warning circuit is as shown in Figure 6.
Brake control module is to judge whether driver's two-hand positions are normal, take automobile after car alarm starting
The control measure of automatic emergency parking.When auto alarm signal occurs, driver's both hands do not restore normal position in the stipulated time,
Then system starts automobile automatic brake program.The process control automobile brake system determines to stop according to automobile current driving speed
The frequency of vehicle and time (brake the countries concerned's standard) referring to pilotless automobile, until automobile stops.
As shown in figure 3, running car, automatically turns on driver's two-hand positions and detects alarm system, pressure acquisition module is opened
The pressure signal of beginning acquisition 9 points and 3 positions of steering wheel, detection circuit start to judge driver's two-hand positions with the presence or absence of different
Often, only when 9 points and 3 positions can detect pressure signal, detection circuit judges that driver's two-hand positions are normal, remaining
Situation is exception；If two-hand positions are normal, and automobile is also in the process of moving, then it is double to continue to test driver for detection circuit
Hand position is with the presence or absence of abnormal；Otherwise, start warning note module immediately, prompt driver and passenger to infuse by sound and flashing light
Meaning traffic safety.If driver has adopted an effective measure after alarm, driver's both hands restore normal behaviour, and automobile is also expert at
During sailing, then detection circuit continues to test driver's two-hand positions with the presence or absence of abnormal；If driver does not take after alarm
Effective measures, brake control module read driver's two-hand positions and still have exception, and brake control module starts automobile certainly
Row retrosequence brakes in a short time to automobile and stops according to speed size.Driving behavior is automatically closed in automobile flameout
Exception monitoring system.
Vehicle equipped with the automobile person's of sailing two-hand positions detection alarm system, can satisfy present consumer demand, function
Can be powerful, driver can be reminded before danger is arrived, driver is made to carry out the peace of effective prevention, support personnel and vehicle
Entirely.
Claims (10)
1. a kind of driver's two-hand positions detect alarm system, which is characterized in that including pressure acquisition module, abnormality detection mould
Block, warning note module and brake control module；Pressure acquisition module is connect with abnormality detection module, abnormality detection module and report
Alert cue module connection, warning note module are connected with brake control module；
Pressure acquisition module is mounted in steering wheel (1), for acquiring the pressure for driver's two-hand positions that steering wheel (1) is subject to
Signal；
Abnormality detection module is for judging whether driver's two-hand positions are abnormal；
When abnormality detection module judges driver's two-hand positions exception, warning note module is for prompting driver's two-hand positions
It is abnormal；
Brake control module is connect with abnormality detection module, and brake control module is connect with brake system, and brake control module is used
Exception, brake control module are still had as a result, working as and reading driver's two-hand positions in reading that abnormality detection module judges
For controlling the parking of brake system automatic emergency.
2. driver's two-hand positions according to claim 1 detect alarm system, which is characterized in that pressure acquisition module connects
It is connected to diaphragm pressure sensor (2).
3. driver's two-hand positions according to claim 1 detect alarm system, which is characterized in that pressure acquisition module cloth
It is located at and 3 points two positions of steering wheel (1) at 9 points.
4. driver's two-hand positions according to claim 3 detect alarm system, which is characterized in that abnormality detection module is
Detection circuit judges that driver's two-hand positions are normal when detection circuit detects at 9 points and have pressure signal at 3 points.
5. driver's two-hand positions according to claim 1 detect alarm system, which is characterized in that warning note module packet
Warning circuit and alarm are included, warning circuit is connected with alarm, and warning circuit is used to control the opening and closing of alarm.
6. driver's two-hand positions according to claim 5 detect alarm system, which is characterized in that alarm includes sound
Alarm and/or visual alarm (4).
7. driver's two-hand positions according to claim 6 detect alarm system, which is characterized in that visual alarm (4)
It is located in instrument board (3), voice guard is connect with automobile audio.
8. driver's two-hand positions according to claim 1 detect alarm system, which is characterized in that brake control module is adopted
With the single-chip microcontroller of model AT89S51.
9. special based on the alarm method of the detection alarm system of driver's two-hand positions described in claim 1~8 any one
Sign is, comprising the following steps:
1) pressure signal for driver's two-hand positions that pressure acquisition module acquisition steering wheel (1) is subject to；
2) abnormality detection module receives the pressure signal of pressure acquisition module acquisition, judges whether driver's two-hand positions are abnormal；
If it is normal, and vehicle is also in the process of moving, then abnormality detection module continues to judge whether driver's two-hand positions are abnormal；Such as
Fruit is abnormal, then starts warning note module immediately, start to alarm；
3) after alarming, if driver restores normal behaviour, and vehicle is also in the process of moving, then abnormality detection module continues to sentence
Whether disconnected driver's two-hand positions are abnormal；Otherwise, brake control module starts vehicle automatic brake program, controls brake system,
Stop vehicle brake to vehicle.
10. a kind of vehicle, which is characterized in that the vehicle is equipped with driver's two-hand positions described in claim 1~8 any one
Detect alarm system.
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| CN201910228083.2A CN109878415A (en) | 2019-03-25 | 2019-03-25 | A kind of driver's two-hand positions detection alarm system and method and vehicle based on it |
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| CN201910228083.2A CN109878415A (en) | 2019-03-25 | 2019-03-25 | A kind of driver's two-hand positions detection alarm system and method and vehicle based on it |
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| CN110901612A (en) * | 2019-11-06 | 2020-03-24 | 张宗梅 | Anti-interference safety anti-disturbance braking method for steering wheel |
| CN111845765A (en) * | 2020-08-28 | 2020-10-30 | 陕西科技大学 | Method and platform for monitoring driver standard driving of vehicle operation and maintenance enterprise |
| CN111976734A (en) * | 2020-08-28 | 2020-11-24 | 陕西科技大学 | Method and system for monitoring standard driving of driver |
| CN112172836A (en) * | 2020-09-28 | 2021-01-05 | 广州小鹏汽车科技有限公司 | Information pushing method and device, vehicle and readable medium |
| CN112339764A (en) * | 2020-11-04 | 2021-02-09 | 杨华勇 | New energy automobile driving posture analysis system based on big data |
| CN113200046A (en) * | 2021-06-17 | 2021-08-03 | 东风悦享科技有限公司 | Method and system for detecting hands-off steering wheel of driver |
| CN113211390A (en) * | 2020-06-03 | 2021-08-06 | 德丰电创科技股份有限公司 | System for controlling electric equipment to operate |
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