CN101901534A - Vehicle attention warning method and used warning device - Google Patents
Vehicle attention warning method and used warning device Download PDFInfo
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- CN101901534A CN101901534A CN 201010235226 CN201010235226A CN101901534A CN 101901534 A CN101901534 A CN 101901534A CN 201010235226 CN201010235226 CN 201010235226 CN 201010235226 A CN201010235226 A CN 201010235226A CN 101901534 A CN101901534 A CN 101901534A
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Abstract
The invention discloses a vehicle attention warning device which comprises a soft container (1) filled with a liquid or gaseous medium, a pressure sensor (2), a control component (3), a light-emitting indicator (4), an alarm device (5) and a DC/DC power converter (6), wherein the control component (3) is respectively connected with the pressure sensor (2), the light-emitting indicator (4), the alarm device (5) and the DC/DC power converter (6), and the pressure sensor (2) is connected with the soft container (1). The invention simultaneously discloses a vehicle attention warning method which utilizes the warning device for warning. The utilization of the warning device and the method can carry out detection and warning on attention of a driver, thereby avoiding the occurrence of malignant traffic accidents.
Description
Technical field
The present invention relates to a kind of alarming method for power and alarming device, particularly a kind of vehicle attention alarming method for power and used alarming device.
Background technology
When China's economic strength constantly strengthened, all types of passenger vehicle quantity that are used for passenger transport also constantly increased.Owing to driver's fatigue or the decreased attention of driving when intoxicated and showing, make the pernicious traffic hazard that causes therefrom that ever-increasing trend be arranged.In order to reduce the generation of this type of artificial pernicious traffic hazard effectively, people urgently wish to install a kind of vehicle attention alarming device that can detect and warn driver attention on bearing circle.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of have driver attention is detected with alarm function and is installed on vehicle attention alarming device and corresponding warning method on the bearing circle.
In order to solve the problems of the technologies described above, the invention provides a kind of vehicle attention alarming device, comprise flexible container, pressure transducer, Control Component, luminous indication, alarm and the DC/DC power supply changeover device of internal-filling liquid attitude or gaseous medium; Control Component links to each other with pressure transducer, luminous indication, alarm and DC/DC power supply changeover device respectively, and pressure transducer links to each other with flexible container.
Improvement as vehicle attention alarming device of the present invention: Control Component comprises analog-to-digital conversion module, time block, storer, central processing unit and the IO interface that links to each other with the DC/DC power supply changeover device respectively, and central processing unit links to each other with analog-to-digital conversion module, time block, storer and IO interface respectively; Pressure transducer links to each other with analog-to-digital conversion module, and luminous indication links to each other with IO interface respectively with alarm.
Further improvement as vehicle attention alarming device of the present invention: Control Component also comprises the communication interface that links to each other with the DC/DC power supply changeover device, and communication interface links to each other with central processing unit.
The present invention also provides the vehicle attention alarming method for power that utilizes above-mentioned alarming device to carry out simultaneously, in storer, preserve maximum limit and the scatterbrained maximum permission number of times of normal response time in advance, set in advance conventional interval time of lighting luminous indication in the central processing unit, light the short and small interval time of luminous indication and accept the limit time that the driver responds; The DC/DC power supply changeover device is after the Control Component energising, and be activated, make be frozen the short and small interval time of lighting luminous indication the conventional interval time of lighting luminous indication of establishing in central processing unit makes; Carry out following steps successively:
1), central processing unit lights instruction to luminous indication according to sending by IO interface above-mentioned conventional interval time, luminous indication is lighted;
Thereby the driver gives a response by the increase to the bearing circle grip force, and pressure transducer passes to central processing unit with the flexible container internal pressure change information of experiencing by analog-to-digital conversion module; Central processing unit utilizes time block calculating to learn from transmission and lights the time difference that instructs to the response of receiving the driver; Central processing unit compares the maximum limit of normal response time of preserving in above-mentioned time difference and the storer; If the maximum limit of time difference≤normal response time then enters step 2); If the maximum limit of time difference>normal response time then enters step 3);
If central processing unit is not received the signal that pressure transducer transmits in the limit time of setting of accepting driver's response, then enter step 3);
2), judge that driver's notice meets the requirements, after arriving once more the conventional interval time of setting of lighting luminous indication, repeat above-mentioned steps 1);
3), the notice of judging the driver is concentrated inadequately; Central processing unit at first adds up in storer and preserves scatterbrained number of times, and scatterbrained maximum permission number of times of preserving in advance in absent minded number of times after then this being added up and the storer compare; During the maximum permission number of times of the absent minded number of times after adding up<scatterbrained, enter following step 4); During the maximum permission number of times of the absent minded number of times after adding up 〉=scatterbrained, enter following step 6);
4), central processing unit is frozen the conventional interval time of lighting luminous indication, and be activated the short and small interval time of lighting luminous indication;
Central processing unit is lighted instruction to luminous indication according to sending by IO interface short and small interval time, and luminous indication is lighted;
Thereby the driver gives a response by the increase to the bearing circle grip force, and pressure transducer passes to central processing unit with the flexible container internal pressure change information of experiencing by analog-to-digital conversion module; Central processing unit utilizes time block calculating to learn from transmission and lights the time difference that instructs to the response of receiving the driver; Central processing unit compares the maximum limit of normal response time of preserving in above-mentioned time difference and the storer; If the maximum limit of time difference≤normal response time then enters step 5); If the maximum limit of time difference>normal response time then enters step 3);
5), judgement driver's notice meets the requirements; Then central processing unit on the one hand with preserve in the storer add up after absent minded number of times do zero clearing and handle, be frozen the short and small interval time that makes be activated, light luminous indication the conventional interval time of lighting luminous indication on the other hand; After arriving once more the conventional interval time of setting of lighting luminous indication, just repeat above-mentioned steps 1 so);
6), central processing unit is by IO interface order alarm equipment alarm.
Improvement as vehicle attention alarming method for power of the present invention: step 6) also comprises: central processing unit sends alerting signal by communication interface to the existing control device of vehicle, thereby control device is regulated accordingly.
Further improvement as vehicle attention alarming method for power of the present invention:, make the vehicle attention alarming device realize restarting by the mode that DC/DC power supply changeover device (6) outage is switched on again;
Under the rebooting status, the absent minded number of times after interior the adding up of preserving of storer is made automatic clear and is handled; Be frozen the short and small interval time that central processing unit makes be activated, light luminous indication the conventional interval time of lighting luminous indication again; Thereby restart work next time.
Further improvement as vehicle attention alarming method for power of the present invention: the central processing unit in the step 1) does not receive that the signal of pressure transducer transmission comprises following any one situation in the limit time of setting of accepting driver's response:
Situation 1., the driver do not react to luminous indication is glittering;
Situation 2., the driver surpasses the glittering time of reacting of luminous indication and accept the limit time that the driver responds, and central processing unit is made and is considered as unreceived processing.
Liquid medium in the vehicle attention alarming device of the present invention, flexible container for example can be selected pure water etc. for use, and gaseous medium for example can be selected normal air, nitrogen etc. for use.During actual the use, this flexible container can partly expose the outside surface at bearing circle, also can be hidden in the bearing circle the inside fully, but need to guarantee and to change pressure in this flexible container by the driver to the variation of bearing circle grip force, thereby make the variation that the pressure transducer that is connected with flexible container can perception flexible container internal pressure.
Be installed on the bearing circle during the actual use of vehicle attention alarming device of the present invention, come real-time analysis driver's notice by detection driver's reaction time.When driver's decreased attention, this vehicle attention alarming device can be adjusted notice automatically and detect interval time with caution, until sending phonetic warning, avoids the driver to drive under the low situation of notice and passenger and other people safety are worked the mischief.The present invention can also pass to information the power control system of vehicle, so that power control system is made suitable adjustment and control to vehicle.
One of characteristics of the present invention are to utilize Control Component to send light to be indicated to the time of response between this of receiving the driver driver's notice is estimated; Two of characteristics are can the time interval of light indicating signal be adjusted; Three of characteristics are to enable alarm to carry out auditory tone cues under extreme case, avoid driver's fatigue driving.In addition, the present invention can also utilize communication interface and vehicle-mounted other device to carry out communication, realization information (as Vehicle Speed, braking, steering column state and turn to indication etc.) is shared, more reasonably analyze and caution so that vehicle attention alarming device of the present invention is made driver's notice, and provide reference information to systems such as vehicle traction and brakings.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the annexation synoptic diagram of vehicle attention alarming device of the present invention.
Embodiment
Fig. 1 has provided a kind of vehicle attention alarming device, comprises flexible container 1, pressure transducer 2, Control Component 3, luminous indication 4, alarm 5 and DC/DC power supply changeover device 6, filling liquid or gaseous medium in the flexible container 1.
Each functions of components is specific as follows:
Flexible container 1---during actual the use, be embedded in the flexible container 1 inner filling liquid state of bearing circle inside or the medium of gaseous state, this flexible container 1 can partly expose the outside surface at bearing circle, also can be hidden in bearing circle the inside fully, but needing to guarantee to change pressure in this flexible container 1 to the variation of bearing circle grip force by the driver; So that connected pressure transducer 2 can perception flexible container 1 internal pressure variation.
Luminous indication 4---this luminous indication 4 is installed in the front of bearing circle, in the vehicle ' process, is used for showing to the driver cue (glittering, as to close automatically after some seconds) of this vehicle attention alarming device.After the driver perceives this cue, can by hold with a firm grip bearing circle once (thereby change in the flexible container 1 pressure) respond.Because luminous indication 4 is installed in the front of bearing circle, therefore as long as luminous indication 4 is lighted, the driver can see the state that luminous indication 4 is lighted easily.
DC/DC power supply changeover device 6---vehicle-mounted 24V power source conversion is become the 5V power supply, thereby provide required power supply to Control Component 3.
During above-mentioned vehicle attention alarming device real work, preserve maximum limit and the scatterbrained maximum permission number of times (generally can be set at 2 times) of normal response time in the storer 33 in advance; Set in advance conventional interval time, the short and small interval time of lighting luminous indication 4 of lighting luminous indication 4, the limit time of accepting driver's response in the central processing unit 34; Accept the limit time (for example be 8 seconds) of driver response maximum limit (for example be 4 seconds) greater than normal response time less than conventional interval time (for example, be 10 minutes conventional interval time, and be 2 minutes short and small interval time) short and small interval time.
Being meant that central processing unit 34 sends to light to instruct to send to luminous indication 4 to luminous indication 4 from this next time interval time lights instruction institute interlude.
DC/DC power supply changeover device 6 is responsible for to 3 power supplies of The whole control assembly; Control Component 3 first electric after, be frozen the short and small interval time that is activated, lights luminous indication 4 the conventional interval time of lighting luminous indication 4 of establishing in central processing unit 34 makes.
Concrete steps are as follows:
1), central processing unit 34 is lighted instruction to luminous indication 4 according to sending by IO interface 35 conventional interval time, luminous indication 4 is lighted, the driver should at least once come indicator signal is given a response by the bearing circle of holding with a firm grip after finding that luminous indication 4 is glittering immediately.
Because the driver is to the increase of bearing circle grip force, thereby the pressure in the flexible container 1 is changed, pressure transducer 2 is passed to analog-to-digital conversion module 31 with the pressure variation of experiencing, analog-to-digital conversion module 31 is responsible for realizing the digital conversion of pressure signal, thereby provide and the corresponding digital quantity of current pressure to central processing unit 34, analyze for central processing unit 34; Thereby central processing unit 34 knows that the driver responds to luminous indication 4 flashing signals after receiving the digital quantity that analog-to-digital conversion module 31 provides, central processing unit 34 utilizes time block 32 just can learn from transmission by calculating and lights the time difference (carrying out the calculating of time according to the number that the timing that receives in this time period is interrupted) that instructs to the response of receiving the driver, and this time difference is promptly represented driver's response time; Central processing unit 34 compares the maximum limit of the normal response time of preservation in above-mentioned time difference and the storer 33.If the maximum limit of time difference≤normal response time then enters step 2); If the maximum limit of time difference>normal response time then enters step 3).
If central processing unit 34 is not received the signal that pressure transducer 2 transmits in the limit time of setting of accepting driver's response, just enter step 3).
Above-mentioned central processing unit 34 does not receive that in the limit time of setting of accepting driver's response the signal of pressure transducer 2 transmission is specially any one of following two kinds of situations:
Situation 1., the driver is glittering to this luminous indication 4, basic just do not react (action that promptly not have generation to hold bearing circle with a firm grip);
Situation 2., the driver is glittering to this luminous indication 4, and the time of reacting surpasses accepts the limit time that the driver responds; Central processing unit 34 is made and is considered as unreceived processing.
2), because time difference≤maximum limit of normal response time, therefore show that the driver responds in normal time, judge that promptly driver's notice meets the requirements.After arriving once more the conventional interval time of setting of lighting luminous indication 4, just repeat above-mentioned steps 1 so).
3), because time difference>maximum limit of normal response time or in accepting of the setting limit time that the driver responds, do not receive the signal that pressure transducer 2 transmits; Therefore show that the driver does not respond in normal time, judge that promptly driver's notice is concentrated inadequately; Central processing unit 34 at first adds up in storer 33 and preserves scatterbrained number of times (adding up once), and scatterbrained maximum permission number of times of preserving in advance in absent minded number of times (hereinafter to be referred as accumulative frequency) after then this being added up and the storer 33 compare.When the maximum permission number of times of accumulative frequency<scatterbrained, enter following step 4); When the maximum permission number of times of accumulative frequency 〉=scatterbrained, enter following step 6);
4), central processing unit 34 is activated short and small interval time of making be frozen, light luminous indication 4 the conventional interval time of lighting luminous indication 4.
Because the driver is to the increase of bearing circle grip force, thereby the pressure in the flexible container 1 is changed, pressure transducer 2 is passed to analog-to-digital conversion module 31 with the pressure variation of experiencing, analog-to-digital conversion module 31 is responsible for realizing the digital conversion of pressure signal, thereby provide and the corresponding digital quantity of current pressure to central processing unit 34, analyze for central processing unit 34; Thereby central processing unit 34 knows that the driver responds to luminous indication 4 flashing signals after receiving the digital quantity that analog-to-digital conversion module 31 provides, central processing unit 34 utilizes time block 32 just can learn from transmission by calculating and lights the time difference (carrying out the calculating of time according to the number that the timing that receives in this time period is interrupted) that instructs to the response of receiving the driver, and this time difference is promptly represented driver's response time; Central processing unit 34 compares the maximum limit of the normal response time of preservation in above-mentioned time difference and the storer 33.If the maximum limit of time difference≤normal response time then enters step 5); If the maximum limit of time difference>normal response time then repeats step 3).
5), because time difference≤maximum limit of normal response time, therefore show that the driver responds in normal time, judge that promptly driver's notice meets the requirements.Then central processing unit 34 is done the zero clearing processing with the absent minded number of times after storer 33 interior the adding up of preserving on the one hand, and be frozen the short and small interval time that makes be activated, light luminous indication 4 the conventional interval time of lighting luminous indication 4 on the other hand.After arriving once more the conventional interval time of setting of lighting luminous indication 4, just repeat above-mentioned steps 1 so).
6), because accumulative frequency 〉=scatterbrained maximum permission number of times, so central processing unit 34 sends chimes of doom and warning light by IO interface 35 order alarms 5.Central processing unit 34 can also send the signal of " driver attention is not concentrated very much " by communication interface 36 to the existing control device of vehicle simultaneously, thereby control device is regulated accordingly, for example starts dead-man's device etc.
Vehicle attention alarming device of the present invention can make vehicle attention alarming device of the present invention restart work (promptly realizing restarting) by the mode that 6 outages of DC/DC power supply changeover device are switched on again; At this moment, the absent minded number of times after storer 33 interior the adding up of preserving is done the automatic clear processing; Be frozen the short and small interval time that central processing unit 34 makes be activated, light luminous indication 4 the conventional interval time of lighting luminous indication 4 again.Thereby restart work next time.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (7)
1. a vehicle attention alarming device is characterized in that: the flexible container (1), pressure transducer (2), Control Component (3), luminous indication (4), alarm (5) and the DC/DC power supply changeover device (6) that comprise internal-filling liquid attitude or gaseous medium; Described Control Component (3) links to each other with pressure transducer (2), luminous indication (4), alarm (5) and DC/DC power supply changeover device (6) respectively, and pressure transducer (2) links to each other with flexible container (1).
2. vehicle attention alarming device according to claim 1, it is characterized in that: described Control Component (3) comprises analog-to-digital conversion module (31), time block (32), storer (33), central processing unit (34) and the IO interface (35) that links to each other with DC/DC power supply changeover device (6) respectively, and described central processing unit (34) links to each other with analog-to-digital conversion module (31), time block (32), storer (33) and IO interface (35) respectively; Described pressure transducer (2) links to each other with analog-to-digital conversion module (31), and luminous indication (4) links to each other with IO interface (35) respectively with alarm (5).
3. vehicle attention alarming device according to claim 2 is characterized in that: described Control Component (3) also comprises the communication interface (36) that links to each other with DC/DC power supply changeover device (6), and described communication interface (36) links to each other with central processing unit (34).
4. utilize as the vehicle attention alarming method for power that any one alarming device carried out in the claim 1~3, it is characterized in that: maximum limit and the scatterbrained maximum permission number of times of in storer (33), preserving the normal response time in advance; Set in advance conventional interval time, the short and small interval time of lighting luminous indication (4) of lighting luminous indication (4) in the central processing unit (34) and accept the limit time that the driver responds; DC/DC power supply changeover device (6) is after Control Component (3) energising, and be activated, make be frozen the short and small interval time of lighting luminous indication (4) the conventional interval time of lighting luminous indication (4) of establishing in central processing unit (34) makes; Carry out following steps successively:
1), central processing unit (34) lights instruction to luminous indication (4) according to above-mentioned conventional interval time by IO interface (35) transmission, luminous indication (4) is lighted;
Thereby the driver gives a response by the increase to the bearing circle grip force, and pressure transducer (2) passes to central processing unit (34) with flexible container (1) the internal pressure change information of experiencing by analog-to-digital conversion module (31); Central processing unit (34) utilizes time block (32) calculating to learn from transmission and lights the time difference that instructs to the response of receiving the driver; Central processing unit (34) compares the maximum limit of the normal response time of preservation in above-mentioned time difference and the storer (33); If the maximum limit of time difference≤normal response time then enters step 2); If the maximum limit of time difference>normal response time then enters step 3);
If central processing unit (34) is not received the signal that pressure transducer (2) transmits in the limit time of setting of accepting driver's response, then enter step 3);
2), judge that driver's notice meets the requirements, after arriving once more the conventional interval time of setting of lighting luminous indication (4), repeat above-mentioned steps 1);
3), the notice of judging the driver is concentrated inadequately; Central processing unit (34) at first adds up in storer (33) and preserves scatterbrained number of times, and scatterbrained maximum permission number of times of preserving in advance in absent minded number of times after then this being added up and the storer (33) compare; During the maximum permission number of times of the absent minded number of times after adding up<scatterbrained, enter following step 4); During the maximum permission number of times of the absent minded number of times after adding up 〉=scatterbrained, enter following step 6);
4), central processing unit (34) is frozen the conventional interval time of lighting luminous indication (4), and be activated the short and small interval time of lighting luminous indication (4);
Central processing unit (34) is lighted instruction to luminous indication (4) according to sending by IO interface (35) short and small interval time, and luminous indication (4) is lighted;
Thereby the driver gives a response by the increase to the bearing circle grip force, and pressure transducer (2) passes to central processing unit (34) with flexible container (1) the internal pressure change information of experiencing by analog-to-digital conversion module (31); Central processing unit (34) utilizes time block (32) calculating to learn from transmission and lights the time difference that instructs to the response of receiving the driver; Central processing unit (34) compares the maximum limit of the normal response time of preservation in above-mentioned time difference and the storer (33); If the maximum limit of time difference≤normal response time then enters step 5); If the maximum limit of time difference>normal response time then enters step 3);
5), judgement driver's notice meets the requirements; Then central processing unit (34) is done the zero clearing processing with the absent minded number of times after interior the adding up of preserving of storer (33) on the one hand, and be frozen the short and small interval time that makes be activated, light luminous indication (4) the conventional interval time of lighting luminous indication (4) on the other hand; After arriving once more the conventional interval time of setting of lighting luminous indication (4), just repeat above-mentioned steps 1 so);
6), central processing unit (34) is reported to the police by IO interface (35) order alarm (5).
5. vehicle attention alarming method for power according to claim 4, it is characterized in that described step 6) also comprises: central processing unit (34) sends alerting signal by communication interface (36) to the existing control device of vehicle, thereby control device is regulated accordingly.
6. vehicle attention alarming method for power according to claim 5 is characterized in that: by the mode that DC/DC power supply changeover device (6) outage is switched on again, make the vehicle attention alarming device realize restarting;
Absent minded number of times after interior the adding up of preserving of storer (33) is made automatic clear and is handled; Be frozen the short and small interval time that central processing unit (34) makes be activated, light luminous indication (4) the conventional interval time of lighting luminous indication (4) again; Thereby restart work next time.
7. according to claim 4,5 or 6 described vehicle attention alarming method for power, it is characterized in that: the central processing unit in the described step 1) (34) does not receive that in the limit time of setting of accepting driver's response the signal that pressure transducer (2) transmits comprises following arbitrary situation:
Situation 1., the driver do not react to luminous indication (4) is glittering;
Situation 2., the driver surpasses the glittering time of reacting of luminous indication (4) and accept the limit time that the driver responds.
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CN2010102352261A CN101901534B (en) | 2010-07-22 | 2010-07-22 | Vehicle attention warning method and used warning device |
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CN2010102352261A CN101901534B (en) | 2010-07-22 | 2010-07-22 | Vehicle attention warning method and used warning device |
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CN101901534B CN101901534B (en) | 2012-11-14 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106550127A (en) * | 2016-10-31 | 2017-03-29 | 努比亚技术有限公司 | A kind of based reminding method, mobile terminal and car-mounted terminal |
CN108944667A (en) * | 2017-05-19 | 2018-12-07 | 矢崎总业株式会社 | Monitoring system |
CN109823322A (en) * | 2018-12-21 | 2019-05-31 | 浙江零跑科技有限公司 | A kind of used in new energy vehicles band stacked switch formula emergency braking apparatus and its control method |
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