CN102982655B - Early warning method of cell phone platform for car driving fatigue - Google Patents
Early warning method of cell phone platform for car driving fatigue Download PDFInfo
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Abstract
The invention discloses an early warning method of a cell phone platform for car driving fatigue, which can quickly popularize the early warning for car driving fatigue and greatly improve the safety factor of car driving. The software is realized by mainly using the existing hardware of the existing smart phone through the following steps: 1. the steering wheel is monitored by combining the image recognition technology and audio analysis technology; 2. the car driving status is analyzed and the collision event is recognized by combining the audio analysis technology and acceleration control; and 3. the fatigue driving early warning is realized through the software in case of long-time operation of the steering wheel or long-time driving to remind the driver to rest. After collision, the position information is obtained and the text message is sent for help or automatic call for help. The incoming call monitoring is carried out in driving, and automatic rejection or automatic answering in the outdoor mode can be set. The method maximizes the functional integration including the call for help function when accident happens and accelerates the rescue speed after the accident while ensuring the accuracy and stability of the fatigue driving early warning function.
Description
technical field
The present invention relates to a kind of system that realizes fatigue of automobile driver warning function on intelligent mobile phone platform.
Background technology
The traffic hazard causing because of fatigue driving has become whole world common problem, and these traffic hazards are not just to occur at once at the initial stage that produces driving fatigue conventionally, if so can develop a kind of capable of giving fatigue pre-warning system, in driving procedure, detect in real time driver's the state of mind, in the time that he just occurs tired sign, just give the alarm, so just can effectively improve safety coefficient.
At present, there are many launch abroad, judged driver fatigue state by the each side such as physiological reaction, driving information factors such as monitoring driver pupils.The domestic research to driver's monitoring safety status technology is started late, and correlative study is mainly carried out in research institutions such as universities.For extra interpolation equipment, have comparatively speaking that cost is high, mobility is poor, a shortcoming such as not scalable after installing.
Along with scientific and technological progress, the function of mobile phone is not only confined to call and note, the smart mobile phone of current trend is mostly all integrated camera, gravity sensor, acceleration transducers etc., along with the raising of mobile phone operational performance, make can realize many additional functions on mobile phone.Smart mobile phone is very universal now, and everybody has mobile phone driver, therefore on mobile phone, develops sleepy precaution device, more meet Chinese motor vehicles more, the average lower present situation of economic capability, is conducive to the universal to improve the safety coefficient of driving of sleepy warning function, reduces the generation of traffic hazard.Therefore, we propose the sleepy early warning system of a kind of smart mobile phone based on Android (Android) platform, can be by monitoring bearing circle and running time, judge that whether driver is in fatigue driving state the timely driver of prompting, this system also provides otherwise function simultaneously, is intended to further improve driver drives vehicle safety.
Summary of the invention
technical matters:the object of the invention is to design a kind of can operation on android cell phone platform, can judge that driver is whether in fatigue driving state, and integrated other can improve the cell phone platform car steering capable of giving fatigue pre-warning method of driving driving safety function.
technical scheme:mobile phone has become the necessary article that people carry now, based on camera integrated on mobile phone, acceleration transducer, microphone, external loudspeaker, the equipment such as GPS, exploitation capable of giving fatigue pre-warning system, can popularize car steering capable of giving fatigue pre-warning instrument fast, greatly improves the safety coefficient of steering vehicle.Wherein crucial technical matters has: on mobile phone, apply behavior recognition technology monitoring vehicle steering; Judge transport condition in conjunction with audio analysis technology; Collision automatic calling for help function.
The camera of the method based on integrated on mobile phone, acceleration transducer, microphone, external loudspeaker, the equipment such as GPS, exploitation capable of giving fatigue pre-warning system, the implementation method of monitoring vehicle steering is: on vehicle steering, paste in advance a kind of tag mark, mobile phone is fixed on to mobile phone camera and can accurately photographs the position of tag mark on vehicle steering, then utilize the camera function on mobile phone, the image of tag mark on timing acquiring vehicle steering, the bearing circle tag mark image that simultaneously adopts image processing techniques to gather to current bearing circle tag mark image with before 1 minute is analyzed identification, if find that automobile is at transport condition, and bearing circle does not all rotate continuously within a certain period of time, driver may be in fatigue driving state, system is sent voice message sound automatically, warning is driven
The person of sailing does not enter fatigue driving state, concentrates one's energy, and looks for stop to have a rest;
Judge the implementation method of transport condition: capable of giving fatigue pre-warning system is by indicating stick motion information above on the bearing circle gathering, in conjunction with the data of interior of mobile phone acceleration transducer collection.Accelerate first to start timing from automobile, judge that occurring being decelerated to acceleration is 0, and bearing circle is without rotation, be judged as in dead ship condition, parking exceedes 10 minutes, and driving time sets to 0 continuously, otherwise thinks in continuous driving condition, when continuous driving time reaches 2 hours, can send in fatigue driving state voice message sound;
The implementation method of collision automated communications: capable of giving fatigue pre-warning system is by the acceleration transducer Real-time Collection acceleration information of interior of mobile phone, in the time that the acceleration of automobile is undergone mutation, mobile phone sound-recording function is opened, and occurs if be attended by clash, and capable of giving fatigue pre-warning system judges that automobile bumps.Now, this system can be utilized GPS function to confirm location and automatically send pre-configured short breath emergency, and auto dialing is cried for help simultaneously.
In the implementation method of monitoring vehicle steering, by stick the tag mark picture pre-setting on bearing circle, utilize image recognition algorithm to analyze gathering picture, treatment technology in conjunction with gray level image and binary image is realized the quick identification to preset picture, and in conjunction with former identification record, the region that the preset picture most probable of precedence parse occurs, to accelerate recognition speed.
In the implementation method of collision automated communications, the audio analysis technology of monitoring car steering and collision, aspect the phonetic analysis of monitoring running car and collision, is identified recorded audio signals; Whether system is pre-stored has an engine to move sound characteristic storehouse and a car crass sound characteristic storehouse, have the sound of engine to exist by identifying in current automobile cab, whether judges automobile in transport condition; In the time monitoring acceleration and exceed threshold value, whether there is clash by identifying current body of a motor car, judge that automobile bumps or orderly shutdown.
beneficial effect:cell phone intelligent car steering capable of giving fatigue pre-warning system can allow driver be convenient to use mobile phone and driving condition be monitored, fatigue driving is carried out to early warning, and the simultaneously integrated function such as automatically seek help of colliding, can strengthen the security of driving greatly.
Brief description of the drawings
Fig. 1 system module structural relation figure: whole system gathers data such as sound, cell phone incoming calls in acceleration, Driving Position image, automobile position, car by using acceleration transducer, camera, GPS, microphone and software to monitor realization; Complete the processing to these data by software; Output device has Mobile phone horn, note and multimedia message, completes and reminds and calling function.
Fig. 2 specific identification sign image: for by the mark of capable of giving fatigue pre-warning system identification, be designed to concentric circles, wherein circular portion is white, and outer circle has yellow filling, and in concentric circles, black line uses thicker black line.More than design is all in order to facilitate system accurately to identify image, finds out fast mark.
When Fig. 3 practical application, indicate pinup picture: while expressing practical application, specific identification mark should be attached to the position of bearing circle.
Embodiment
The implementation method of monitoring vehicle steering is: on vehicle steering, paste in advance a kind of sign image, mobile phone is fixed on to mobile phone camera and can accurately photographs the position of sign image on vehicle steering, then utilize the camera function on mobile phone, timing acquiring image, the bearing circle sign image that simultaneously adopts image processing techniques to gather to current bearing circle sign image with before 1 minute is analyzed identification, if automobile is at transport condition, and sign image does not all rotate within a certain period of time, driver may be in fatigue driving state, system is sent voice message sound automatically, alerting drivers is not wanted fatigue driving, should concentrate one's energy immediately, find stop has a rest simultaneously.
The implementation method that judges transport condition is: capable of giving fatigue pre-warning system is carried out recording operation in real time, and audio frequency retention time is 2 minutes, backs up original newly-built recording file after 2 minutes.Whether system is pre-stored has an engine to move sound characteristic storehouse and a car crass sound characteristic storehouse, have the sound of engine to exist by identifying in current automobile cab, whether judges automobile in transport condition, and identification is spaced apart 1 minute.When continuous driving time reaches 2 hours, send fatigue driving state voice message sound, alerting drivers is not wanted fatigue driving, should find as early as possible stop and have a rest.
The implementation method of collision automated communications is: capable of giving fatigue pre-warning system is by the acceleration transducer Real-time Collection acceleration information of interior of mobile phone, in the time analyzing automobile in driving condition by recording, if acceleration is undergone mutation, audio recording is identified, occur if find that there is clash, capable of giving fatigue pre-warning system judges that automobile bumps.Now, the short breath that this system can utilize GPS function to confirm that location comprises automobile position information when also transmission is pre-configured is automatically cried for help, and auto dialing is cried for help simultaneously.
Aspect the automatic processing of incoming call: when system judges automobile in driving condition, for cell phone incoming call, system shields and put in addition the operation of answering according to configuration in advance.
Method at monitoring vehicle steering is the tag mark picture pre-setting by sticking on bearing circle, utilize image recognition algorithm to analyze gathering picture, mainly to realize the quick identification to preset picture in conjunction with the treatment technology of gray level image and binary image, and in conjunction with former identification record, the region that the preset picture most probable of precedence parse occurs, to accelerate recognition speed.
Phonetic analysis in monitoring running car and collision is by recorded audio signals is identified.Whether system is pre-stored has an engine to move sound characteristic storehouse and a car crass sound characteristic storehouse, have the sound of engine to exist by identifying in current automobile cab, whether judges automobile in transport condition; In the time monitoring acceleration and exceed threshold value, whether there is clash by identifying current body of a motor car, whether Main Analysis recording has the amplitude time period, judges that automobile bumps or orderly shutdown.
Cell phone intelligent car steering capable of giving fatigue pre-warning system is by the Information Monitoring of labor early warning system calling mobile phone miscellaneous part, by software analysis and call hardware interface and realize:
hardware components: be mainly camera integrated on calling mobile phone, acceleration transducer, microphone, external loudspeaker, the equipment such as GPS.
software section: native system can be divided into according to functional structure: acceleration transducer data monitoring, the processing of camera collection image, incoming call status monitoring, GPS placement data acquisition, data processing, voice message, automatically sends note and seeks help, auto dialing this nine aspects of seeking help, general frame is shown in Figure of description Fig. 1.
1, this software can carry out parameter setting by MENU catalogue, self-defined suggestion voice, use help, exit this four functions, parameter setting comprises the static warning duration of bearing circle, drives warning duration, collision warning acceleration levels continuously, recommendation is provided simultaneously, car crass automatic short message catchword number and content, call number also can be set in addition.And comprise that capable of giving fatigue pre-warning function, collision automatic calling for help function, incoming call auto-pickup functional switch configure.
2, this software is mainly divided into 3 interfaces, and first is to enter software to start interface, and the brief operation guide that comprises this software and beginning formula button enter working interface; Second interface is that recording interface is to carry out recording of suggestion voice; The 3rd interface is working interface, and working interface shows driving information, comprises continuous driving time and bearing circle rest time.Between interface, switch by intent, the code at the interface of recording as entered is as follows:
Intent?intentRecord?=?
new?Intent();
intent6.setClass(StartActivity.
this,RecordActivity.
class);
startActivity(intentRecord);
3, the sound intermediate frequency amendment of recording interface is provided with three buttons, representative " beginning ", " stopping ", " broadcasting " respectively, by arranging that detectaphone calls record (), stop (), play () realizes recording operation to these three buttons.Android system provides the class MediaRecorder that realizes recording, and record (), stop () and play () have called just the member method in MediaRecorder and realize recording.Be provided with status bar simultaneously and show current operation status.Meanwhile, below interface, provide two buttons, represented respectively current recording to save as bearing circle long time no operations fatigue drive prompting voice and current recording is saved as to long-duration driving and remind voice.
4, when note sends, call the SmsManager class comprising in the Android.telephony.gsm attached bag that Android system provides, call the note that sendTextMessage interface wherein generates inside and automatically send.It is the TelephonyManager class using in telephony bag that automatic short message is called out, use the Context of Adroid to obtain a TelephonyManager class, can realize cell phone incoming call monitoring, send the rear realization of incoming call automatically with outdoor pattern pickup feature.Obtaining position is to use LocationManager class to process and preserve.
5, need to use Runnalbe recordRunnalbe=new Runnale () to create a new thread at the recording software of monitoring interface and use MediaRecorder to record and audio analysis, obtain eigenwert and the engine operation sound characteristic data comparison of preserving in advance.Can ensure that like this recording, audio analysis and acceleration monitor carry out simultaneously.
6, the core of this software is that bearing circle is monitored, here be need on bearing circle, stick special image to facilitate the identification of software to various bearing circle, in order to ensure discrimination and recognition speed simultaneously, transfer gray level image binary conversion treatment identification simultaneously border to gathering image, realize the identification to our extra pinup picture fast and accurately, the coordinate that uses getMidPoint function the to obtain pinup picture line item of going forward side by side, after each analysis, preserve pinup picture coordinate simultaneously, the place that intellectual analysis pinup picture may occur, accelerate recognition speed next time, after repeatedly analyzing, average recognition time can be shortened in two seconds, whether change to judge by analyzing pinup picture position whether bearing circle rotates, in the time not having rotation time to reach 20s to 1 minute, can (configurable) judge driver in fatigue state and carry out alarm operation.
7, for the monitoring of acceleration by obtaining pickup with accelerometerAPI, when in driving condition and monitoring acceleration while being greater than 10 metre per second (m/s), simultaneously by audio analysis function recordAnalysis() the judgement sound that bumps, judge that automobile bumps, now point out in 5 seconds and operate without screen touch, automatically send distress signals, cry for help by short breath transmission positional information and call, if there is no clash, judgement is the normal driving phenomenons such as parking of automobile.
Whole software is realized increasingly automated, opens setting and the switch various functions that camera aligning direction dish can be realized to sleepy early warning and also can be carried out according to personal considerations simultaneously parameter.
Claims (3)
1. a cell phone platform car steering capable of giving fatigue pre-warning method, is characterized in that: the camera of the method based on integrated on mobile phone, acceleration transducer, microphone, external loudspeaker, GPS equipment, exploitation capable of giving fatigue pre-warning system;
The implementation method of monitoring vehicle steering is: on vehicle steering, paste in advance a kind of tag mark, mobile phone is fixed on to mobile phone camera and can accurately photographs the position of tag mark on vehicle steering, then utilize the camera function on mobile phone, the image of tag mark on timing acquiring vehicle steering, the bearing circle tag mark image that simultaneously adopts image processing techniques to gather to current bearing circle tag mark image with before 1 minute is analyzed identification, if find that automobile is at transport condition, and bearing circle does not all rotate continuously within a certain period of time, driver may be in fatigue driving state, system is sent voice message sound automatically, alerting drivers does not enter fatigue driving state, concentrate one's energy, look for stop to have a rest,
Judge the implementation method of transport condition: capable of giving fatigue pre-warning system is by indicating stick motion information above on the bearing circle gathering, the data that gather in conjunction with interior of mobile phone acceleration transducer, accelerate first to start timing from automobile, judge that occurring being decelerated to acceleration is 0, and bearing circle is without rotation, be judged as in dead ship condition, parking exceedes 10 minutes, driving time sets to 0 continuously, otherwise think in continuous driving condition, when continuous driving time reaches 2 hours, can send in fatigue driving state voice message sound;
The implementation method of collision automated communications: capable of giving fatigue pre-warning system is by the acceleration transducer Real-time Collection acceleration information of interior of mobile phone, in the time that the acceleration of automobile is undergone mutation, mobile phone sound-recording function is opened, if being attended by clash occurs, capable of giving fatigue pre-warning system judges that automobile bumps, now, this system can be utilized GPS function to confirm location and automatically send pre-configured short breath emergency, and auto dialing is cried for help simultaneously.
2. cell phone platform car steering capable of giving fatigue pre-warning method according to claim 1, it is characterized in that monitoring in the implementation method of vehicle steering, by stick the tag mark picture pre-setting on bearing circle, utilize image recognition algorithm to analyze gathering picture, treatment technology in conjunction with gray level image and binary image is realized the quick identification to preset picture, and in conjunction with former identification record, the region that the preset picture most probable of precedence parse occurs, to accelerate recognition speed.
3. cell phone platform car steering capable of giving fatigue pre-warning method according to claim 1, it is characterized in that colliding in the implementation method of automated communications, the audio analysis technology of monitoring car steering and collision, aspect the phonetic analysis of monitoring running car and collision, is identified recorded audio signals; Whether system is pre-stored has an engine to move sound characteristic storehouse and a car crass sound characteristic storehouse, have the sound of engine to exist by identifying in current automobile cab, whether judges automobile in transport condition; In the time monitoring acceleration and exceed threshold value, whether there is clash by identifying current body of a motor car, judge that automobile bumps or orderly shutdown.
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Application publication date: 20130320 Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000208 Denomination of invention: Early warning method of cell phone platform for car driving fatigue Granted publication date: 20141022 License type: Common License Record date: 20161110 |
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Assignee: Jiangsu Nanyou IOT Technology Park Ltd. Assignor: Nanjing Post & Telecommunication Univ. Contract record no.: 2016320000208 Date of cancellation: 20180116 |
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Effective date of registration: 20181217 Address after: 226000 Room 8319, Building 11, Happy New Town, Gangzha District, Nantong City, Jiangsu Province Patentee after: Nanjing University of Posts and Telecommunications Nantong Institute Limited Address before: 210003 new model road, Nanjing, Nanjing, Jiangsu Patentee before: Nanjing Post & Telecommunication Univ. |
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Effective date of registration: 20220309 Address after: 226000 Room 102, building 4, No. 109, Yongfu Road, Tangzha Town Street, Chongchuan District, Nantong City, Jiangsu Province Patentee after: Nantong Ruineng Automobile Technology Co.,Ltd. Address before: Room 8319, building 11, Xingfu new town, Gangzha District, Nantong City, Jiangsu Province, 226000 Patentee before: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS NANTONG INSTITUTE Co.,Ltd. |
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