CN104157027A - Video recording system and video recording method of accident situation in travelling process - Google Patents
Video recording system and video recording method of accident situation in travelling process Download PDFInfo
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- CN104157027A CN104157027A CN201410427603.XA CN201410427603A CN104157027A CN 104157027 A CN104157027 A CN 104157027A CN 201410427603 A CN201410427603 A CN 201410427603A CN 104157027 A CN104157027 A CN 104157027A
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Abstract
The invention discloses a video recording system and video recording method of accident situation in travelling process. The video recording system comprises: an electronic stable program system which is used for acquiring vehicle speed information, a safe restraint system which is used for acquiring collision information, and an automobile data recorder which comprises a central processor and a CAN transceiver. The CAN transceiver communicates with the safe restraint system and the electronic stable program system through a whole vehicle network. The CAN transceiver reads the vehicle speed information and the collision information and sends the vehicle speed information and the collision information to the central processor. The central processor calculates a deceleration value of an operation of a vehicle on the basis of the vehicle speed information. If the automobile data recorder is in on state and the deceleration value achieves a preset value or the collision information is received, an accident situation storage function of the automobile data recorder is activated; if the automobile data recorder is in off state and the deceleration value achieves a preset value or the collision information is received, the automobile data recorder is started and the accident situation storage function of the automobile data recorder is activated. By means of the system and the method, information of an accident situation is ensured to be accurately recorded.
Description
Technical field
The invention belongs to automotive electronic technology, be specifically related to video recording device and the method for emergency situations in a kind of process of driving a vehicle.
Background technology
Along with the high speed development of Global Auto industry, the recoverable amount of automobile is also increasing, has caused thus the frequent generation of vehicle traffic accident.But the process when can not accurate recording accident occurring and driver's operational circumstances, a lot of accidents can not well be carried out confirmation of responsibility, so front video information and the real-time running state information of car load of registration of vehicle operation will make the judgement of accident more accurate.Therefore increasing car owner has selected installation running recording instrument of automobile to take storage to driving process.
At present passenger car drive recorder is on the market mostly the product that car owner oneself later stage buys, and the video information recording for accident can be occurred time also stores, integrated shock sensor.When collision occurs and drive recorder opens, shock sensor meeting output signal, the sudden change memory function of activation drive recorder, the video information before and after signal is sent in a period of time stores, and can not be by auto-erasing.Be convenient to car owner and check at any time scene of the accident video information.
But there is defect in the drive recorder that the market later stage is bought on sudden change record:
(1) in the situation that drive recorder is closed, if collision generation cannot recording video information.Cause car owner's worry;
(2) shock sensor only just can send signal, activated mutant video recording in the time that larger collision occurs after tested.But in actual conditions, before a lot of collision accidents occur, all pass through brake hard, collision degree may be lighter, and shock sensor may can not exported corresponding information and carry out activated mutant video recording, causes this part video information to be retained and is wiped free of;
(3) some there will not be the emergency condition of collision, as brake hard, touch porcelain etc., owing to there is no the output of vibration signal, can not be stored as sudden change video recording, exists to be wiped free of.
Summary of the invention
The object of this invention is to provide video recording device and the method for emergency situations in a kind of process of driving a vehicle, to guarantee that situation information under bursty state is by accurate recording.
The video recording device of emergency situations in driving process of the present invention, comprising:
Electronic Stability Program (ESP) system, for obtaining the speed information of this vehicle, and sends to this speed information on car load network,
Safety restraint system, for obtaining the collision information of this vehicle, and sends to this collision information on car load network;
Drive recorder, the CAN transceiver that it comprises central processing unit and is connected with central processing unit, this CAN transceiver communicates by car load network and safety restraint system, Electronic Stability Program (ESP) system, described CAN transceiver reads described speed information, collision information and sends to central processing unit from car load network, central processing unit calculates the deceleration value of vehicle operating based on this speed information, if drive recorder is in opening, and deceleration value reaches setting value or receives after collision information, activate the sudden change memory function of drive recorder; If drive recorder is in closed condition, and deceleration value reaches setting value or receives after collision information, opens drive recorder activated mutant memory function.
The video recording method of emergency situations in driving process of the present invention, adopts the video recording device of emergency situations in driving process as claimed in claim 1, comprises the following steps:
The speed information of step 1, this vehicle of Electronic Stability Program (ESP) system acquisition also sends to this speed information in car load network, and safety restraint system is obtained the collision information of this vehicle and this collision information is sent in car load network;
Step 2, drive recorder gather speed information and collision information from car load network by CAN transceiver, and send to central controller, central controller calculates the deceleration value of this vehicle operating based on described speed information, if drive recorder is in opening, and deceleration value reaches setting value or receives after collision information, activate the sudden change memory function of drive recorder; If drive recorder is in closed condition, and deceleration value reaches setting value or receives after collision information, opens drive recorder activated mutant memory function.
In described step 1, described Electronic Stability Program (ESP) system collects speed information by vehicle speed sensor;
Described safety restraint system is sent collision information by safety air sac controller.
The present invention has the following advantages:
(1) need to be in drive recorder integrated shock sensor, reduced cost;
(2) drive recorder can Real-time Collection speed information and the collision information of driving, and the deceleration value calculating using collision information and based on speed information is as the Rule of judgment of sudden change video recording, when unsafe condition occurs, when driver's braking deceleration reaches certain value or receives collision alarm, activate the sudden change memory function of drive recorder, guarantee that the situation information of bursty state in driving process is by accurate recording, so that the accurate identification of accident responsibility;
(3) in the situation that drive recorder is closed, still can carry out by data acquisition bus information the sudden change memory function of automatic activation drive recorder, be convenient to record relevant information in the situation that drive recorder is closed.
Brief description of the drawings
Fig. 1 is system chart of the present invention;
Fig. 2 is suddenly change while the opening workflow diagram of video record of drive recorder;
Fig. 3 is suddenly change while the closing workflow diagram of video record of drive recorder.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the video recording device of emergency situations in driving process of the present invention, comprise Electronic Stability Program (ESP) system 2, safety restraint system 3 and drive recorder 1, described Electronic Stability Program (ESP) system 2 is for obtaining the speed information of this vehicle, and this speed information is sent on car load network 4.Described safety restraint system 3 is for obtaining the collision information of this vehicle, and this collision information is sent to car load network 4(such as CAN communication bus) on.The CAN transceiver 1b that described drive recorder 1 comprises central processing unit 1a and is connected with central processing unit 1a, this CAN transceiver 1b communicates by car load network 4 and safety restraint system 3, Electronic Stability Program (ESP) system 2.Described CAN transceiver 1b reads described speed information, collision information and sends to central processing unit 1a from car load network 4, central processing unit 1a calculates the deceleration value of vehicle operating based on this speed information, if drive recorder 1 is in opening, and deceleration value reaches setting value or receives after collision information, activate the sudden change memory function of drive recorder 1; If drive recorder 1 is in closed condition, and deceleration value reaches setting value or receives after collision information, opens drive recorder 1 activated mutant memory function.
The video recording method of emergency situations in driving process of the present invention, adopts the video recording device of emergency situations in driving process of the present invention, comprises the following steps:
Step 1, Electronic Stability Program (ESP) system 2 collect speed information by vehicle speed sensor, and this speed information is sent in car load network 4, safety restraint system 3 is sent collision information by safety air sac controller, and this collision information is sent in car load network 4.
Step 2, drive recorder 1 gather speed information and collision information by CAN transceiver 1b from car load network 4, and send to central controller 1a, central controller 1a calculates the deceleration value of this vehicle operating based on described speed information, if drive recorder 1 is in opening, and deceleration value reaches setting value or receives after collision information, activate the sudden change memory function of drive recorder 1; If drive recorder 1 is in closed condition, and deceleration value reaches setting value or receives after collision information, opens drive recorder 1 activated mutant memory function.
As shown in Figure 2, under the state of opening at drive recorder 1, in driving process of the present invention, the flow process of the video recording method of emergency situations is as follows:
(a1) car load powers on, and car load power supply gear is set to non-OFF shelves;
(a2) drive recorder 1 receives car load power supply for after this state, drive recorder 1 activation that also starts to power on;
(a3) after drive recorder 1 powers on, first carry out system initialization self-inspection, comprise that whether CAN transceiver 1B is normal, whether camera is normal etc., will close drive recorder 1 and the instruction of reporting to the police if self-inspection is undesired;
(a4) self-inspection complete and working properly after, drive recorder 1 is started working, camera starts the video information in Real-time Collection vehicle operating front, and by video information transmission to central controller 1a;
(a5), after drive recorder 1 is started working, in video information collection, gather speed information and collision information by CAN transceiver 1B from CAN bus, and speed information and collision information are sent to central controller 1a;
(a5) central controller 1a processes the video information receiving, speed information, collision information;
(a7) central controller 1a carries out Real-Time Monitoring to the collision information and the speed information that gather, and calculates the deceleration value of vehicle operating by speed information;
(a8) central controller 1a has judged whether that by collision information collision occurs, or judges whether deceleration value reaches setting value;
(a9) when central controller 1a is determined with that collision occurs or deceleration value while reaching setting value, activate the sudden change memory function of drive recorder 1; Be sudden change video recording by the videograph in this period of time, it can not be filled with auto-erasing because of the storer of drive recorder 1;
(a10) in the time that central controller 1a judges that collisionless occurs or deceleration value does not reach setting value, be normal mode by this section of videograph, in the time that the storer of drive recorder 1 is preserved completely, the video of recording for normal mode will be wiped covering according to first in first out;
(a11) in drive recorder 1 operational process, if initiatively close drive recorder 1 or car load power down, system will exit, otherwise drive recorder 1 will carry out loop recording.
As shown in Figure 2, under the state of closing at drive recorder 1, in driving process of the present invention, the flow process of the video recording method of emergency situations is as follows:
(b1) car load powers on;
(b2) CAN transceiver 1b gathers speed information and collision information from CAN bus; And speed information and collision information are sent to central controller 1a;
(b3) central controller 1a processes the speed information receiving, and calculates deceleration value;
(b4) central controller 1a has judged whether that by collision information collision occurs, or judges whether deceleration value reaches setting value;
(b5) in the time that central controller 1a judges that collision occurs or retarded velocity reaches setting value, open drive recorder 1 activated mutant memory function,, record rear drive recorder 1 and got back to closed condition for sudden change video recording by the videograph in this period of time;
(b6) in the time that central controller 1a judges that collisionless occurs or deceleration value does not reach setting value, drive recorder 1 keeps closed condition.
Claims (3)
1. in the process of driving a vehicle, a video recording device for emergency situations, is characterized in that, comprising:
Electronic Stability Program (ESP) system (2), for obtaining the speed information of this vehicle, and it is upper that this speed information is sent to car load network (4),
Safety restraint system (3), for obtaining the collision information of this vehicle, and sends to this collision information on car load network (4);
Drive recorder (1), the CAN transceiver (1b) that it comprises central processing unit (1a) and is connected with central processing unit (1a), this CAN transceiver (1b) is by car load network (4) and safety restraint system (3), Electronic Stability Program (ESP) system (2) communicates, described CAN transceiver (1b) reads described speed information from car load network (4), collision information also sends to central processing unit (1a), central processing unit (1a) calculates the deceleration value of vehicle operating based on this speed information, if drive recorder (1) is in opening, and deceleration value reaches setting value or receives after collision information, activate the sudden change memory function of drive recorder (1), if drive recorder (1) is in closed condition, and deceleration value reaches setting value or receives after collision information, opens drive recorder (1) activated mutant memory function.
2. in the process of driving a vehicle, a video recording method for emergency situations, is characterized in that, adopts the video recording device of emergency situations in driving process as claimed in claim 1, comprises the following steps:
Step 1, Electronic Stability Program (ESP) system (2) are obtained the speed information of this vehicle and this speed information are sent in car load network (4), and safety restraint system (3) is obtained the collision information of this vehicle and this collision information is sent in car load network (4);
Step 2, drive recorder (1) gather speed information and collision information by CAN transceiver (1b) from car load network (4), and send to central controller (1a), central controller (1a) calculates the deceleration value of this vehicle operating based on described speed information, if drive recorder (1) is in opening, and deceleration value reaches setting value or receives after collision information, activate the sudden change memory function of drive recorder (1); If drive recorder (1) is in closed condition, and deceleration value reaches setting value or receives after collision information, opens drive recorder (1) activated mutant memory function.
3. the video recording method of emergency situations in driving process according to claim 2, is characterized in that: in described step 1, described Electronic Stability Program (ESP) system (2) collects speed information by vehicle speed sensor;
Described safety restraint system (3) is sent collision information by safety air sac controller.
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| CN201410427603.XA CN104157027A (en) | 2014-08-27 | 2014-08-27 | Video recording system and video recording method of accident situation in travelling process |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105336015A (en) * | 2015-11-24 | 2016-02-17 | 大连楼兰科技股份有限公司 | Automobile data recorder based on vehicle controller area network (CAN) bus wakeup |
| CN105667454A (en) * | 2016-03-14 | 2016-06-15 | 联想(北京)有限公司 | Control method and mobile device |
| CN106447825A (en) * | 2016-08-30 | 2017-02-22 | 浙江大学 | Vehicle-mounted information recording system based on Internet of things |
| CN106611448A (en) * | 2015-10-23 | 2017-05-03 | 比亚迪股份有限公司 | Automobile data recorder control system and method |
| CN106997626A (en) * | 2017-02-13 | 2017-08-01 | 奇瑞汽车股份有限公司 | A kind of sound equipment drive recorder and its control method based on 360 degree of panorama systems |
| CN108932762A (en) * | 2017-05-26 | 2018-12-04 | 长城汽车股份有限公司 | Bicycle recording apparatus |
| CN110356344A (en) * | 2019-07-24 | 2019-10-22 | 重庆长安汽车股份有限公司 | A kind of vehicle-mounted event recording method, system and automobile applied to panorama system |
| CN111246087A (en) * | 2020-01-11 | 2020-06-05 | 深圳市豪恩汽车电子装备股份有限公司 | Motor vehicle video recording controller, motor vehicle video recording control system and method |
| CN112383706A (en) * | 2020-10-29 | 2021-02-19 | 安徽江淮汽车集团股份有限公司 | Collision photographing method, device and equipment based on automobile data recorder and storage medium |
| CN112419537A (en) * | 2019-08-22 | 2021-02-26 | 合肥杰发科技有限公司 | Image storage method, automobile data recorder and device with storage function |
| CN116798144A (en) * | 2023-04-18 | 2023-09-22 | 润芯微科技(江苏)有限公司 | Collision video storage method, system, device and computer readable storage medium |
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| CN106611448B (en) * | 2015-10-23 | 2020-10-23 | 比亚迪股份有限公司 | Vehicle event data recorder control system and method |
| CN106611448A (en) * | 2015-10-23 | 2017-05-03 | 比亚迪股份有限公司 | Automobile data recorder control system and method |
| CN105336015A (en) * | 2015-11-24 | 2016-02-17 | 大连楼兰科技股份有限公司 | Automobile data recorder based on vehicle controller area network (CAN) bus wakeup |
| CN105667454A (en) * | 2016-03-14 | 2016-06-15 | 联想(北京)有限公司 | Control method and mobile device |
| CN106447825A (en) * | 2016-08-30 | 2017-02-22 | 浙江大学 | Vehicle-mounted information recording system based on Internet of things |
| CN106997626A (en) * | 2017-02-13 | 2017-08-01 | 奇瑞汽车股份有限公司 | A kind of sound equipment drive recorder and its control method based on 360 degree of panorama systems |
| CN108932762A (en) * | 2017-05-26 | 2018-12-04 | 长城汽车股份有限公司 | Bicycle recording apparatus |
| CN110356344A (en) * | 2019-07-24 | 2019-10-22 | 重庆长安汽车股份有限公司 | A kind of vehicle-mounted event recording method, system and automobile applied to panorama system |
| CN112419537A (en) * | 2019-08-22 | 2021-02-26 | 合肥杰发科技有限公司 | Image storage method, automobile data recorder and device with storage function |
| CN111246087A (en) * | 2020-01-11 | 2020-06-05 | 深圳市豪恩汽车电子装备股份有限公司 | Motor vehicle video recording controller, motor vehicle video recording control system and method |
| CN112383706A (en) * | 2020-10-29 | 2021-02-19 | 安徽江淮汽车集团股份有限公司 | Collision photographing method, device and equipment based on automobile data recorder and storage medium |
| CN112383706B (en) * | 2020-10-29 | 2021-09-28 | 安徽江淮汽车集团股份有限公司 | Collision photographing method, device and equipment based on automobile data recorder and storage medium |
| CN116798144A (en) * | 2023-04-18 | 2023-09-22 | 润芯微科技(江苏)有限公司 | Collision video storage method, system, device and computer readable storage medium |
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Application publication date: 20141119 |
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