CN103366510B - A kind of mobile phone and the safe travelling method based on its camera - Google Patents
A kind of mobile phone and the safe travelling method based on its camera Download PDFInfo
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Abstract
The invention provides a kind of mobile phone and the safe travelling method based on its camera.This safe travelling method comprises: the presented iris collection capacity being obtained driver by mobile phone camera; If presented iris collection capacity is zero, be then retrieved as the zero-time and compared with preset time threshold, and when judging that it is greater than preset time threshold alert trigger; If presented iris collection capacity is non-vanishing, then by presented iris collection capacity compared with the standard iris capturing amount pre-set, and when judging that it is less than standard iris capturing amount alert trigger, its Plays iris capturing amount is 30% of iris area.By the way, the present invention can more science and closing to reality prevent driver tired driving, while eliminating safe hidden trouble, also can prevent erroneous judgement, there is higher popularization simultaneously.
Description
Technical field
The present invention relates to safe driving technical field, in particular to a kind of mobile phone and the safe travelling method based on its camera.
Background technology
Along with the high speed development of auto industry, associated traffic hazard is also in quick increase.Show according to statistics, fatigue driving is the one of the main reasons causing major traffic accidents, because driver is in the driving condition of spiritual high concentration for a long time, therefore very easily can feel tired, thus cause absent minded, especially the most easily there is this situation when highway is driven night.
Current, monitoring technology for fatigue driving has multiple, comprising the frequency etc. adopting the eye movement of image recognition technology monitoring driver, eyelid blinks, judge whether the face feature information of driver is in monitoring range according to this, judge whether further to be in fatigue driving state, if it is in time give the alarm to remind to it, thus the generation avoided traffic accident.Particularly, Chinese patent literature CN1458006A is the immediate prior art of the present invention.But, although existing fatigue driving monitoring technology has certain reminding effect, but not closing to reality, such as driver carries out moveing backward under waking state, lane change and when watching vehicle body periphery situation, cause sight line not in dead ahead, now its face is not in pattern recognition device or facial information harvester, conventionally now answers alert trigger, this obviously and actual conditions be not inconsistent, the unexpected alarm that this kind of erroneous judgement causes very easily causes scaring to driver or puzzlement.
In sum, be necessary to provide a kind of mobile phone and the safe travelling method based on its camera, to solve the problem.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of mobile phone and the safe travelling method based on its camera, can more science and closing to reality prevent driver tired driving, while eliminating safe hidden trouble, also can prevent erroneous judgement.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of safe travelling method based on mobile phone camera, comprising: the presented iris collection capacity being obtained driver by mobile phone camera; If presented iris collection capacity is zero, be then retrieved as the zero-time and compared with preset time threshold, and when judging that it is greater than preset time threshold alert trigger; If presented iris collection capacity is non-vanishing, then by presented iris collection capacity compared with the standard iris capturing amount pre-set, and when judging that it is less than standard iris capturing amount alert trigger, its Plays iris capturing amount is 30% of iris area.
Wherein, also comprised obtained the step of the presented iris collection capacity of driver by mobile phone camera before: in mobile phone, adopt the eye position of face and iris combination optical imagine device location driver and obtain corresponding image, to gather iris information.
Wherein, the taking a step forward of step being obtained the presented iris collection capacity of driver by mobile phone camera is comprised: carry out pre-service to the iris information gathered, and eliminates the Acquisition Error that environmental factor causes, to obtain presented iris collection capacity.
Wherein, analog to digital conversion is carried out to the presented iris collection capacity obtained, export presented iris collection capacity with the form of numerical information.
Wherein, if when presented iris collection capacity is zero, safe travelling method also comprises step: if the zero-time is less than preset time threshold, then gathers presented iris collection capacity until when it is non-vanishing, enter the step compared with standard iris capturing amount.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of mobile phone, for safe driving, comprising: iris information acquisition module, for obtaining the presented iris collection capacity of driver; First processing module, for when presented iris collection capacity is zero, is retrieved as the zero-time and compared with preset time threshold, triggers prompting module give the alarm when judging that it is greater than preset time threshold; Second processing module, for when presented iris collection capacity is non-vanishing, by presented iris collection capacity compared with the standard iris capturing amount pre-set, trigger prompting module when judging that it is less than standard iris capturing amount and give the alarm, its Plays iris capturing amount is 30% of iris area.
Wherein, iris information acquisition module comprises face and iris combination optical imagine device, for locating the eye position of driver and obtaining corresponding image, to gather iris information.
Wherein, iris information acquisition module also comprises pretreatment module, for carrying out pre-service to the iris information of face and the collection of iris combination optical imagine device, eliminates the Acquisition Error that environmental factor causes, to obtain presented iris collection capacity.
Wherein, iris information acquisition module comprises analog-to-digital conversion module further, for carrying out analog to digital conversion to the presented iris collection capacity through pretreatment module process, exports presented iris collection capacity with the form of numerical information.
Wherein, if the first processing module is when presented iris collection capacity is zero, be judged as that the zero-time is less than preset time threshold, then iris information acquisition module gathers presented iris collection capacity until when it is non-vanishing, and non-vanishing presented iris collection capacity and standard iris capturing amount compare by the second processing module.
The invention has the beneficial effects as follows: the present invention obtains the presented iris collection capacity of driver by mobile phone camera, the zero-time is retrieved as when presented iris collection capacity is zero, and by it compared with preset time threshold, the then alert trigger when judging that it is greater than preset time threshold; In addition when presented iris collection capacity is non-vanishing, by presented iris collection capacity compared with the standard iris capturing amount pre-set, and when judging that it is less than standard iris capturing amount alert trigger, in the present invention standard iris capturing amount is defined as 30% of iris area, can more science and closing to reality prevent driver tired driving, eliminate safe hidden trouble, there is higher popularization simultaneously.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of safe travelling method one embodiment that the present invention is based on mobile phone;
Fig. 2 is the theory diagram of mobile phone one embodiment of the present invention.
Embodiment
The present invention mainly provides a kind of safe travelling method based on mobile phone camera and adopts the mobile phone of the method, this safe travelling method and classic method difference are: disclose when the presented iris collection capacity of the driver monitored is zero according to actual driving situation, be retrieved as the zero-time and compared with preset time threshold, and emphasize when judging that it is greater than preset time threshold just alert trigger; When monitoring presented iris collection capacity and being non-vanishing, by presented iris collection capacity compared with the standard iris capturing amount pre-set, and when judging that it is less than standard iris capturing amount alert trigger.Wherein presented iris collection capacity obtains mainly through mobile phone camera, therefore makes the present invention have higher popularization.
In addition, according to medical science and physiology general knowledge, the eyes of people by sclera, iris and pupil three part form, iris is between sclera and pupil, it is made up of many gland nests, fold, pigmented spots etc., is one of structure unique in human body, it comprises the abundantest and unique texture information, and because iris occupies 65% of human eye sphere area, the iris capturing amount therefore by being easy to gather judges that fatigue driving is unusual science and meet medical science convention.
Further, through long-term observation and lot of experimental data analysis, the present invention learn iris capturing amount as normal human lower than human eye sphere area 30% time, then show that people very easily enters fatigue or doze state, therefore the present invention defines 30% of iris area as standard iris capturing amount.
Below in conjunction with accompanying drawing 1 ~ 2 and embodiment, the present invention is described in detail.
Fig. 1 is the process flow diagram of safe travelling method one embodiment that the present invention is based on mobile phone.As shown in Figure 1, the safe travelling method of the present embodiment comprises the following steps:
Step S110: the presented iris collection capacity being obtained driver by mobile phone camera.
In use, first mobile phone is placed on the position in driver dead ahead, and open mobile phone front-facing camera, make camera can photograph the eyes of driver, now the iris of driver is in the range of receiving of camera, by mobile phone screen, being embodied in driver can see whether the eyes of oneself are presented in screen.
Then when driving conditions starts, driver clicks the traffic safety software running and be built in mobile phone, software is automatically opened camera and is opened the eye position of preset face and iris combination optical imagine device location driver, image corresponding to now eyes is obtained by shooting, subsequently pre-service is carried out to the eyes image gathered, i.e. Iris Location, for eliminating the Acquisition Error that environmental factor causes, to obtain iris information more accurately.Wherein, Iris Location is a kind of center of circle and radius of finding the inside and outside circle of iris in eyes image, and the technology that iris is cut off out, be achieved mainly through circumference method of difference, Hough transform method and gradient optimal algorithm during concrete operations.
It is to be noted, being still a kind of analog information obtained through image through pretreated presented iris collection capacity, therefore, needing the presented iris collection capacity to obtaining to carry out analog to digital conversion, presented iris collection capacity is exported, so that follow-up numeric ratio comparatively with the form of numerical information.
Step S120: judge whether presented iris collection capacity is zero.
If presented iris collection capacity is zero, then perform step S130.If presented iris collection capacity is non-vanishing, then perform step S140.
Step S130: be retrieved as the zero-time and judge whether it is greater than preset time threshold.
Step S150, i.e. alert trigger is performed when being judged as that the zero-time is greater than preset time threshold.
If presented iris collection capacity is zero, show that the eyes of driver are not in the monitoring range of face and iris combination optical imagine device, judgement driver that now can not be unilateral is in fatigue driving state, needs timing to be retrieved as the zero-time and by making concrete judgement with the comparative result of preset time threshold.Wherein, preset time threshold be define that driver carries out moveing backward under waking state, lane change and watch the situations such as vehicle body periphery time cause sight line not at the maximum safety time value in dead ahead.
In addition, if the zero-time is less than preset time threshold, then returns step S110 and continue to gather presented iris collection capacity until when it is non-vanishing, enter step S140.
Step S140: by presented iris collection capacity compared with the standard iris capturing amount pre-set, judges whether it is less than standard iris capturing amount, and its Plays iris capturing amount is 30% of iris area.
If presented iris collection capacity is less than standard iris capturing amount, then performs step S150 alert trigger, then return step S110 if not.
Step S150: alert trigger.
Should be understood that also can vary with each individual in other cases to standard iris capturing amount is that 30% of iris area suitably adjusts, driver is by repeatedly regulating in use thus finding to be applicable to oneself threshold value.
By above-mentioned, the present embodiment can more science and closing to reality prevent driver tired driving, while eliminating safe hidden trouble, also can prevent erroneous judgement, the mobile terminal adopting mobile phone etc. to have camera in addition carries out aforesaid operations, has higher popularization.
Fig. 2 is the theory diagram of mobile phone one embodiment of the present invention.As shown in Figure 2, the mobile phone of the present embodiment is used for safe driving, comprising: iris information acquisition module 210, first processing module 220, second processing module 230 and prompting module 240.
Wherein, iris information acquisition module 210 is for obtaining the presented iris collection capacity of driver, realize its function when concrete operations by the camera of mobile phone, iris information acquisition module 210 is made up of face and iris combination optical imagine device 211, pretreatment module 212 and analog-to-digital conversion module 213.Specifically, face and iris combination optical imagine device 211 are for locating the eye position of driver and obtaining corresponding image.Pretreatment module 212 carries out pre-service for the iris information gathered face and iris combination optical imagine device 211, eliminates the Acquisition Error that environmental factor causes, to obtain presented iris collection capacity more accurately.Analog-to-digital conversion module 213, for carrying out analog to digital conversion to the presented iris collection capacity processed through pretreatment module 212, exports presented iris collection capacity with the form of numerical information.
First processing module 220, for when presented iris collection capacity is zero, is retrieved as the zero-time and compared with preset time threshold, triggers prompting module 240 give the alarm when judging that it is greater than preset time threshold.
Second processing module 230 is for when presented iris collection capacity is non-vanishing, by presented iris collection capacity compared with the standard iris capturing amount pre-set, trigger prompting module 240 to give the alarm when judging that it is less than standard iris capturing amount, its Plays iris capturing amount is 30% of iris area.
It is to be noted, if the first processing module 220 is when presented iris collection capacity is zero, be judged as that the zero-time is less than preset time threshold, then iris information acquisition module 210 continues to gather presented iris collection capacity until when it is non-vanishing, and non-vanishing presented iris collection capacity and standard iris capturing amount compare by the second processing module 230.
In embodiment provided by the present invention, should be understood that, the embodiment of mobile phone described above is only schematic, the division of described module, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as the first processing module 220 and the second processing module 230 can in conjunction with or be integrated in a system, namely the function both being realized by an arm processor, if science more can be realized and closing to reality prevent driver tired driving, the object judged by accident also can be prevented while eliminating safe hidden trouble.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. based on a safe travelling method for mobile phone camera, it is characterized in that, described safe travelling method comprises:
The presented iris collection capacity of driver is obtained by mobile phone camera;
If described presented iris collection capacity is zero, be then retrieved as the zero-time and compared with preset time threshold, and when judging that it is greater than described preset time threshold alert trigger;
If described presented iris collection capacity is non-vanishing, then by described presented iris collection capacity compared with the standard iris capturing amount pre-set, and when judging that it is less than described standard iris capturing amount alert trigger, wherein said standard iris capturing amount is 30% of iris area.
2. safe travelling method according to claim 1, is characterized in that, also comprises before the step of the described presented iris collection capacity by mobile phone camera acquisition driver:
In described mobile phone, adopt face and iris combination optical imagine device locate the eye position of described driver and obtain corresponding image, to gather iris information.
3. safe travelling method according to claim 2, is characterized in that, described the taking a step forward of step being obtained the presented iris collection capacity of driver by mobile phone camera is comprised:
Pre-service is carried out to the described iris information gathered, eliminates the Acquisition Error that environmental factor causes, to obtain described presented iris collection capacity.
4. safe travelling method according to claim 3, is characterized in that, carries out analog to digital conversion, export described presented iris collection capacity with the form of numerical information to the described presented iris collection capacity obtained.
5. safe travelling method according to claim 1, is characterized in that, if when described presented iris collection capacity is zero, described safe travelling method also comprises step:
Be less than described preset time threshold if described for the zero-time, then gather described presented iris collection capacity until when it is non-vanishing, enter the step compared with described standard iris capturing amount.
6. a mobile phone, for safe driving, is characterized in that, described mobile phone comprises:
Iris information acquisition module, for obtaining the presented iris collection capacity of driver;
First processing module, for when described presented iris collection capacity is zero, is retrieved as the zero-time and compared with preset time threshold, triggers prompting module give the alarm when judging that it is greater than described preset time threshold;
Second processing module, for when described presented iris collection capacity is non-vanishing, by described presented iris collection capacity compared with the standard iris capturing amount pre-set, judging that it triggers described prompting module when being less than described standard iris capturing amount and gives the alarm, wherein said standard iris capturing amount is 30% of iris area.
7. mobile phone according to claim 6, is characterized in that, described iris information acquisition module comprises face and iris combination optical imagine device, for locating the eye position of described driver and obtaining corresponding image, to gather iris information.
8. mobile phone according to claim 7, it is characterized in that, described iris information acquisition module also comprises pretreatment module, for carrying out pre-service to the described iris information of described face and the collection of iris combination optical imagine device, eliminate the Acquisition Error that environmental factor causes, to obtain described presented iris collection capacity.
9. mobile phone according to claim 8, it is characterized in that, described iris information acquisition module comprises analog-to-digital conversion module further, for carrying out analog to digital conversion to the described presented iris collection capacity through pretreatment module process, exports described presented iris collection capacity with the form of numerical information.
10. mobile phone according to claim 6, it is characterized in that, if described first processing module is when described presented iris collection capacity is zero, as the zero-time is less than described preset time threshold described in judging, then described iris information acquisition module gathers described presented iris collection capacity until when it is non-vanishing, and non-vanishing described presented iris collection capacity and described standard iris capturing amount compare by described second processing module.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104751600B (en) * | 2015-03-03 | 2018-01-30 | 北京虹安翔宇信息科技有限公司 | Anti-fatigue-driving safety means and its application method based on iris recognition |
| CN105049596B (en) * | 2015-06-01 | 2018-09-07 | 惠州Tcl移动通信有限公司 | A kind of mobile terminal and its fatigue state detection method |
| CN105354537B (en) * | 2015-10-10 | 2019-03-22 | 宇龙计算机通信科技(深圳)有限公司 | A kind of iris identification method, device and terminal |
| CN106791641A (en) * | 2016-12-16 | 2017-05-31 | 深圳安狗数据技术有限公司 | A kind of DAS (Driver Assistant System) and auxiliary driving method |
| CN109858403A (en) * | 2019-01-16 | 2019-06-07 | 深圳壹账通智能科技有限公司 | A kind of method and photographic device that monitoring driver drives using mobile phone |
| CN115966056A (en) * | 2022-11-29 | 2023-04-14 | 合众新能源汽车股份有限公司 | Method, device, equipment and storage medium for personal safety early warning in vehicle |
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