CN102592332B - A kind of pilot recording system of automobile - Google Patents
A kind of pilot recording system of automobile Download PDFInfo
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- CN102592332B CN102592332B CN201210074978.3A CN201210074978A CN102592332B CN 102592332 B CN102592332 B CN 102592332B CN 201210074978 A CN201210074978 A CN 201210074978A CN 102592332 B CN102592332 B CN 102592332B
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Abstract
The present invention discloses a kind of pilot recording system of automobile, comprise the connected DSP Main Processor Unit of FPGA image pre-processing unit, it is characterized in that: described FPGA image pre-processing unit and four road video display buffers and a video converter model calling, this video converter module is connected with four road video input modules; Described DSP Main Processor Unit is connected with memory module and four tunnel alerting signals; The four tunnel vision signals handled well send to DSP Main Processor Unit to process by PGA image pre-processing unit successively.Present invention employs front packing technique, utilize active safety system and the CAN signal of automobile self, feed back vehicle condition, receive these signals in time, effectively, reliably, carry out the stores processor of data.And adopt secondary storage mechanism, at reservation continuous 10 hours original videos, when increasing the sufficient reliability of video, the video information of a large amount of abnormal conditions can be stored, greatly ensure that the completeness of data.
Description
Technical field
The present invention relates to a kind of pilot recording system of automobile, particularly relating to a kind of video type pilot recording system of automobile based on looking around camera, CAN signal, blind area detection alarm signal, FCW alerting signal.
Background technology
Along with the raising of living standards of the people, automobile pollution as walking-replacing tool constantly increases, traffic hazard and the possibility that all kinds of unsafe incidents occurs on traffic route also increase, and cause huge loss, bring adverse effect to the stable of civil order to the country and people.In order to protect safety and the interests of driver and pedestrian, adopting the pilot recording system of automobile with the continuous writing function of video, providing strong evidence can to the reason of accident and responsibility analysis.
At present, on vehicle, the drive recorder adopting rear dress, does not install vehicle-running recording system more before car load dispatches from the factory.The drive recorder that vehicle adopts is divided into two large classes: the first kind is that the information of collection is single with the situation of the form record vehicle traveling process of word or code, and readable poor, legal basis is insufficient; Equations of The Second Kind adopts section type videograph, mainly in traffic hazard or traffic route, other fortuitous events carry out record to the situation of vehicle periphery after occurring, and the video data of collection is limited, can not ensure situation when accident of reducing completely occurs, valid data have loss, collect evidence insufficient.The drive recorder of rear dress can not the vehicle condition signal of good collection vehicle itself, the state of reaction vehicle that can not be good, existing defects in technical matters.
Summary of the invention
The object of this invention is to provide a kind of pilot recording system of automobile, this traveling record system can the image of continuous print registration of vehicle 360 degree of scopes, normal video information can not only be recorded, and energy separate records anomalous video information, original video image can be provided for accident treatment, ensure the validity of putting to the proof, and can store for a long time in traveling register system; The storage data of this traveling record system, user is extracted by read-only USB interface and checks.
In order to overcome the deficiency of rear dress Tachographs, this pilot recording system of automobile adopts four tunnels combined with active safety systems of vehicles and CAN signal to look around video and records, active safety system alerting signal and CAN signal are as the foundation triggering important video storage, four tunnels are looked around camera and are recorded continuously the image within the scope of vehicle-surroundings 360 degree, embody ambient conditions in the driving process of vehicle in all directions.The image of this pilot recording system of automobile meeting continuous print registration of vehicle 360 degree of scopes, and, there iing risk of collision, dangerous to lose control of one's vehicle, under the abnormal conditions of active defense, video information at that time can be recorded.This pilot recording system of automobile can not only record normal video information, and energy separate records anomalous video information, can provide original video image, ensure the validity of putting to the proof for accident treatment.This pilot recording system of automobile, have employed hierarchical storage mechanism, and in secondary storage, adopt priority storage policy, while saving storage space, greatly ensure that completeness and the validity of video.For ensureing the legal effect of registering instrument data, the storage data of this registering instrument can be checked by read-only USB interface extraction by user, but user does not have authority to revise, the data message of the storer of deletion record system.
A kind of pilot recording system of automobile of the present invention, comprise the connected DSP Main Processor Unit of FPGA image pre-processing unit, it is characterized in that: described FPGA image pre-processing unit and four road video display buffers and a video converter model calling, this video converter module is connected with four road video input modules;
Described DSP Main Processor Unit is connected with memory module and four tunnel alerting signals; Described four tunnel alerting signals comprise CAN signal, FCW alerting signal, blind area detection alarm signal and emergency recording signal; The four tunnel vision signals handled well send to DSP Main Processor Unit to process by PGA image pre-processing unit successively.
Further, continuous print video file input FPGA image pre-processing unit is carried out pre-service by described four road video input modules and video converter module, the four road video datas obtained is sent into DSP Main Processor Unit successively and carries out compressed encoding and put into memory module.
Further, what described FCW alerting signal adopted is millimetre-wave radar.When there is barrier within the scope of front side 150m, system triggers FCW alerting signal.
Further, described blind area detection alarm signal respectively placed a millimetre-wave radar at the rear, left side of automobile and rear, right side.
Further, described four road video input modules adopt the image of four camera admission motor vehicle environments 360 degree.
Further, described CAN signal is used for providing brake signal, steering angle signal and pressure sensor signal to DSP Main Processor Unit.
Further, described memory module has selected SD card, employing be secondary storage mechanism; The continuous videos of collection compresses and is stored in one-level storage unit by DSP Main Processor Unit; When critical event occurs, secondary storage mechanism is triggered, and the video data of one-level storage unit corresponding time period can be entered in secondary storage by unloading.
Further, what described emergency recording signal adopted is digital button.When an emergency happens, driver presses the button, and pilot recording system of automobile can be manually opened, record current video image.
This pilot recording system of automobile solves the technical scheme that its problem takes: four road video inputs; Video converter; FPGA image pre-processing unit; DSP Main Processor Unit; Four tunnel alerting signals; Storage unit; Four road video display buffers.This automobile travel recorder adopts the mode of four tunnel CMOS camera recording of video simultaneously, by the analog video signal gathered, is transferred to video converter, after FPGA image pre-processing unit receives data, video is carried out sequential control and gray processing pre-service.The data received are carried out H.264 compressed encoding by DSP Main Processor Unit, then store in the memory unit, meanwhile, when critical event triggers the response of letter information acquisition module, can trigger important video storage mechanism.Directly utilize active safety system and the CAN signal of automobile, on the basis retaining continuous 10 hours original video storage, carry out storing again of important video information, ensure the reliability of the storage of important information.
Beneficial effect of the present invention: have employed front packing technique, utilizes active safety system and the CAN signal of automobile self, feeds back vehicle condition, receives these signals in time, effectively, reliably, carries out the stores processor of data.And adopt secondary storage mechanism, at reservation continuous 10 hours original videos, when increasing the sufficient reliability of video, the video information of a large amount of abnormal conditions can be stored, greatly ensure that the completeness of data, adopt the storage policy of priority, not only make important information can storer is medium-term and long-term again storage, reduce the redundancy of unreliable information, and save storage space.Adopt four tunnels to look around the pattern of videograph, in conjunction with blind area detection signal report to the police, can to record in driver blind area such as, overtake other vehicles wipe hang, turn to wipe hang, the video of rear-end collision.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the Stored Procedure figure of secondary storage mechanism.
Embodiment
Below in conjunction with accompanying drawing, this pilot recording system of automobile is further described.
See consulting a kind of pilot recording system of automobile shown in Fig. 1, Fig. 2, comprise the connected DSP Main Processor Unit 5 of FPGA image pre-processing unit 4;
Described FPGA image pre-processing unit 4 is connected with four road video display buffers 3 and a video converter module 2, and this video converter module is connected with four road video input modules 1;
Described DSP Main Processor Unit 5 is connected with memory module 6 and four tunnel alerting signals 7; Described four tunnel alerting signals 7 comprise CAN signal, FCW alerting signal, blind area detection alarm signal and emergency recording signal;
The four tunnel vision signals handled well send to DSP Main Processor Unit 5 to process by PGA image pre-processing unit 4 successively.
Continuous print video file input FPGA image pre-processing unit 4 is carried out pre-service by described four road video input modules 1 and video converter module 2, the four road video datas obtained is sent into DSP Main Processor Unit 5 successively and carries out compressed encoding and put into memory module 6.
What described FCW alerting signal adopted is millimetre-wave radar.When there is barrier within the scope of front side 150m, system triggers FCW alerting signal.
Described blind area detection alarm signal respectively placed a millimetre-wave radar at the rear, left side of automobile and rear, right side.
Described four road video input modules 1 adopt the image of four camera admission motor vehicle environments 360 degree.
Described CAN signal is used for providing brake signal, steering angle signal and pressure sensor signal to DSP Main Processor Unit 5.
Described memory module 6 has selected SD card, employing be secondary storage mechanism; The continuous videos of collection compresses and is stored in one-level storage unit by DSP Main Processor Unit 5; When critical event occurs, secondary storage mechanism is triggered, and the video data of one-level storage unit corresponding time period can be entered in secondary storage by unloading.
What described emergency recording signal adopted is digital button.When an emergency happens, driver presses the button, and pilot recording system of automobile can be manually opened, record current video image.
Principle of work of the present invention: when pilot recording system of automobile is opened, four road video input modules 1 complete the collecting work to side images data; When galloping, FCW detects preceding object thing distance by millimetre-wave radar, sends alerting signal when there being risk of collision; When rear has vehicle close from the side in driver blind area, and driver have with front vehicle equidirectional turn to intention time, trigger alarm is detected in blind area; When monitoring CAN information, when steering wheel angle angular velocity, brake pressure signal exceed safe threshold, trigger alarm signals also carries out record to current C AN information.When the characteristic of vehicle dynamic quality, stability, engine has abnormal, warning four road video input is carried out through Video Quality Metric to system, analog image is converted to digital picture, FPGA image pre-processing unit 4 carries out sequential control and gray processing pre-service to the digital picture after conversion, the digital picture obtained carries out H.264 compressed encoding process by DSP Main Processor Unit 5, and carry out priority arithmetic, priority and time are attached on packet stored in the one-level storage unit of memory module 6.When the brake signal in CAN, steering angle, pressure sensor signal has exceeded the safety value defined, or FCW signal alarm, blind area detection signal is reported to the police, emergency recording signal produces and all will trigger the secondary storage mechanism of pilot recording system of automobile, and system can extract the information unloading of before and after current event several minutes in secondary storage in one-level storage unit, and preserves the evidence as event for a long time.In secondary storage, adopt the pattern according to priority stored, the image of the covering low priority of high priority.When priority is identical, cover time image the earliest.When needs extract video content in storer, user can only extract video content by read-only USB, can not to modify operation to data in storer.
The priority calculation specifications of secondary storage:
Current event priority=Event Priority value * Time priority value.
Event Priority illustrates:
Event Priority list
Time priority illustrates:
Time priority adopts the mode of counter, and namely an event counter often occurs and adds 1, priority raises 1 grade, and initial value is 1.The value of nonce counter is the Time priority value of current event.
Claims (7)
1. a pilot recording system of automobile, comprises the connected DSP Main Processor Unit (5) of FPGA image pre-processing unit (4), it is characterized in that:
Described FPGA image pre-processing unit (4) is connected with four road video display buffers (3) and a video converter module (2), and this video converter module is connected with four road video input modules (1);
Described DSP Main Processor Unit (5) is connected with memory module (6) and four tunnel alerting signals (7); Described four tunnel alerting signals (7) comprise CAN signal, FCW alerting signal, blind area detection alarm signal and emergency recording signal;
The four tunnel vision signals handled well send to DSP Main Processor Unit (5) to process by FPGA image pre-processing unit (4) successively;
Continuous print video file input FPGA image pre-processing unit (4) is carried out pre-service by described four road video input modules (1) and video converter module (2), the four road video datas obtained is sent into DSP Main Processor Unit (5) successively and carries out compressed encoding and put into memory module (6).
2. pilot recording system of automobile according to claim 1, is characterized in that: what described FCW alerting signal adopted is millimetre-wave radar.
3. pilot recording system of automobile according to claim 1 and 2, is characterized in that: described blind area detection alarm signal respectively placed a millimetre-wave radar at the rear, left side of automobile and rear, right side.
4. pilot recording system of automobile according to claim 1 and 2, is characterized in that: described four road video input modules (1) adopt the image of four camera admission motor vehicle environments 360 degree.
5. pilot recording system of automobile according to claim 1 and 2, is characterized in that: described CAN signal is used for providing brake signal, steering angle signal and pressure sensor signal to DSP Main Processor Unit (5).
6. pilot recording system of automobile according to claim 1 and 2, is characterized in that: described memory module (6) has selected SD card, employing be secondary storage mechanism; The continuous videos of collection compresses and is stored in one-level storage unit by DSP Main Processor Unit (5); When critical event occurs, secondary storage mechanism is triggered, and the video data of one-level storage unit corresponding time period can be entered in secondary storage by unloading.
7. pilot recording system of automobile according to claim 1 and 2, is characterized in that: what described emergency recording signal adopted is digital button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210074978.3A CN102592332B (en) | 2012-03-21 | 2012-03-21 | A kind of pilot recording system of automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210074978.3A CN102592332B (en) | 2012-03-21 | 2012-03-21 | A kind of pilot recording system of automobile |
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| CN102592332A CN102592332A (en) | 2012-07-18 |
| CN102592332B true CN102592332B (en) | 2016-02-03 |
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| CN201210074978.3A Active CN102592332B (en) | 2012-03-21 | 2012-03-21 | A kind of pilot recording system of automobile |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489231A (en) * | 2013-09-26 | 2014-01-01 | 浙江吉利控股集团有限公司 | Driving condition recording device and driving condition recording method |
| CN104683738B (en) * | 2013-11-28 | 2019-05-24 | 杭州海康威视数字技术股份有限公司 | A method of storing vehicle-mounted DVR alarm video clip |
| CN104157027A (en) * | 2014-08-27 | 2014-11-19 | 重庆长安汽车股份有限公司 | Video recording system and video recording method of accident situation in travelling process |
| CN104794776B (en) * | 2015-04-17 | 2017-08-25 | 青岛龙凯信息科技有限公司 | A kind of drive recorder based on Internet of Things |
| CN106488336B (en) * | 2016-11-21 | 2019-11-12 | 株洲中车时代电气股份有限公司 | A kind of engine video frequency transmission method and system based on event corner |
| CN108921969A (en) * | 2018-03-30 | 2018-11-30 | 斑马网络技术有限公司 | Information storage system and its application |
| CN109003352B (en) * | 2018-07-02 | 2020-11-06 | 南京兴鼎升电气设备有限公司 | Storage recording method of train event recorder |
| CN111435556A (en) * | 2019-01-11 | 2020-07-21 | 昆山研达电脑科技有限公司 | System and method for reducing heating of automobile data recorder |
| CN110322592A (en) * | 2019-07-24 | 2019-10-11 | 重庆长安汽车股份有限公司 | A kind of vehicle mounted data recorder, vehicle-mounted data recording method and automobile |
| CN110599621B (en) * | 2019-07-29 | 2020-07-07 | 深圳市阿斯盾云科技有限公司 | Automobile data recorder and control method thereof |
| CN110675526A (en) * | 2019-09-09 | 2020-01-10 | 深圳市纬嘉壹科技有限公司 | Multifunctional automobile data recorder |
| CN111311914B (en) * | 2020-02-26 | 2021-12-07 | 广州小鹏汽车科技有限公司 | Vehicle driving accident monitoring method and device and vehicle |
| CN115129232A (en) * | 2021-03-26 | 2022-09-30 | 华为技术有限公司 | Storage method and device |
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| CN102592332A (en) | 2012-07-18 |
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