CN102542635A - Car recorder combined with lane deviation alarming system - Google Patents
Car recorder combined with lane deviation alarming system Download PDFInfo
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- CN102542635A CN102542635A CN2012100285825A CN201210028582A CN102542635A CN 102542635 A CN102542635 A CN 102542635A CN 2012100285825 A CN2012100285825 A CN 2012100285825A CN 201210028582 A CN201210028582 A CN 201210028582A CN 102542635 A CN102542635 A CN 102542635A
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Abstract
The invention relates to a car recorder combined with a lane deviation alarming system. The car recorder comprises an MCU (Micro Control Unit) module, an image processing module, a CAN (Controller Area Network) signal module and a data storage module, wherein the MCU module is respectively connected with the image processing module, the CAN signal module and the data storage module; the image processing module is connected with a video signal acquisition module utilized as a video signal acquirer of the lane deviation alarming system; the video signal acquirer of the lane deviation alarming system synchronously transmits acquired video data information to the lane deviation alarming system and the image processing module of the car recorder; and the MCU module receives an alarming signal of the lane deviation alarming system through the CAN signal module and takes the alarming signal as a triggering signal for conversion of high and low frame number compression manners of video data in the image processing module. The car recorder combined with the lane deviation alarming system, disclosed by the invention, utilizes a COMS (Complementary Metal Oxide Semiconductor) camera based on the lane deviation alarming system, thus the car recorder can be integrated in the design of a whole vehicle to save the cost; and as a data asynchronous processing manner is utilized, the reality and real-time property of the video data before and after accidents happen are ensured.
Description
Technical field
The present invention relates to the ride safety of automobile supervising device, be specifically related to a kind of drive recorder that combines with driveway deviation alarming system.
Background technology
The running registering instrument is as the security monitoring and the historgraphic data recording device of vehicle '; It mainly acts on is each item service data in the registration of vehicle driving process; Like the speed of a motor vehicle, mileage, furious driving record, car brakeing job record, light job record, door contact interrupter record etc., for vehicle management and monitoring provide necessary law enforcement foundation.Along with the increase of Chinese automobile recoverable amount, the compensation issue that traffic safety problem and traffic hazard cause has become the social concerns focus.
At present, drive recorder all belongs to dress market, back, and promptly the car owner acquires drive recorder after purchasing car.It is main that these drive recorders adopt under cruising states with lteral data, the recording mode that accident begins to gather video data when taking place.The outward appearance of the influential car load of subject matter that these drive recorders exist, the first-class external devices job insecurity of shooting, video information is discontinuous, the continuous acquisition time short, lteral data can not reflect vehicle running state intuitively.This just causes the reproduction of drive recorder recorded data realization accident fully, and clear and definite foundation can not be provided for the processing of accident.
Summary of the invention
The purpose of this invention is to provide a kind of drive recorder that combines with driveway deviation alarming system; This drive recorder external devices working stability, the continuous acquisition video information time is long, and video information is coherent, clear; The reproduction of realization accident fully is for the processing of accident provides clear and definite foundation.
The present invention utilizes the driveway deviation alarming system camera collection video data of (being called for short the LDW system), then data is transferred to simultaneously the data processing module of drive recorder and LDW system.Drive recorder starts when the user powers on to automobile, and under the cruising situation, drive recorder hangs down the frame number processed compressed to vision signal; When LDW system alarm, danger button be pressed or the CAN bus on specified signal when surpassing early warning value, drive recorder carries out high frame number processed compressed to vision signal, the video information when accident is taken place is more coherent, clear.
A kind of drive recorder that combines with driveway deviation alarming system of the present invention comprises the MCU module, and the image processing module that is connected with the MCU module respectively, CAN signaling module and data memory module is characterized in that:
Said image processing module is connected with a video signal collective module, the video signal collective device that this video signal collective module is a driveway deviation alarming system; The video signal collective device of driveway deviation alarming system is sent to the video data information of gathering the image processing module of driveway deviation alarming system and drive recorder simultaneously; The MCU module is through the alerting signal of CAN signaling module reception driveway deviation alarming system, as the trigger pip of the high and low frame number compress mode conversion of video data in the image processing module.
Further, the said video signal collective device COMS camera that is driveway deviation alarming system.
Further, said MCU module also receives GES, damping force signal, acceleration signal, deviation line ball signal, fog lamp signal and danger button signal through the CAN signaling module, the trigger pip of changing as the video data compression mode.
Further; Said image processing module comprises buffer area; Image compression processor, buffer area is preserved the video data that the video signal collective module is gathered in real time, discharges the video data of preserving to image compression processor after a period of time; Make that the current packed data of DSP is the preceding for the previous period data of gathering of video signal collective module, realizes IMAQ, asynchronous compression memory.
Further, said Flame Image Process compressor reducer is a dsp chip, is integrated in the TMS320DM6446 chip
Further, said MCU module 3 is the ARM chip, is integrated in the TMS320DM6446 chip.
Further, described a kind of drive recorder that combines with driveway deviation alarming system also comprises communication module, the driving video information of MCU module through preserving in this communication module output data memory module.
Further, the chip of said communication module employing is a 68013A USB interface chip.
Further, the chip of said data memory module employing is THSDKR5W4.
Further, described a kind of drive recorder that combines with driveway deviation alarming system also comprises peripheral circuit, for each module provides power supply and protection.
The invention has the beneficial effects as follows: owing to based on the LDW system and utilize its COMS camera, can drive recorder be integrated in the car load design, practice thrift cost, need not the user and install voluntarily; Transfer the sign indicating number compression mechanism owing to adopt, can practice thrift hard drive space; Owing to adopt data asynchronous process mode, authenticity, real-time, the fluency of video data before and after the accident that guaranteed takes place.
Description of drawings
Fig. 1 is a functional block diagram of the present invention;
Fig. 2 is the Project Realization figure of Fig. 1 of the present invention;
Fig. 3 is a data asynchronous process schematic block diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Referring to Fig. 1 and a kind of drive recorder that combines with driveway deviation alarming system of Fig. 2, comprise MCU module 3, the image processing module 2 that is connected with the MCU module respectively, CAN signaling module 4 and data memory module 5;
Said image processing module 2 is connected with a video signal collective module 1, the video signal collective device that this video signal collective module is a driveway deviation alarming system; The video signal collective device of driveway deviation alarming system is sent to the video data information of gathering the image processing module 2 of driveway deviation alarming system and drive recorder simultaneously; The MCU module is through the alerting signal of CAN signaling module reception driveway deviation alarming system, as the trigger pip of the high and low frame number compress mode conversion of video data in the image processing module 2.
Further, the said video signal collective device COMS camera that is driveway deviation alarming system.
Further, said MCU module 3 also receives GESs, damping force signal, acceleration signal, deviation line ball signal, fog lamp signal and danger button signal through CAN signaling module 4, the trigger pip of changing as the video data compression mode.
Further; Said image processing module 2 comprises buffer area, image compression processor; Buffer area is preserved the video data that video signal collective module 1 is gathered in real time; Discharge the video data of preserving to image compression processor after a period of time, make that the current packed data of DSP is the preceding for the previous period data of gathering of video signal collective module 1, realizes IMAQ, asynchronous compression memory.
Further, said Flame Image Process compressor reducer is a dsp chip, is integrated in the TMS320DM6446 chip.
Further, said MCU module 3 is the ARM chip, is integrated in the TMS320DM6446 chip.
Further, described a kind of drive recorder that combines with driveway deviation alarming system also comprises communication module 6, the driving video information of MCU module 3 through preserving in these communication module 6 output data memory modules 5.
Further, the chip of said communication module 6 employings is 68013A USB interface chips.
Further, the chip of said data memory module 5 employings is THSDKR5W4.
Described a kind of drive recorder that combines with driveway deviation alarming system also comprises peripheral circuit 7.
Referring to Fig. 3, after the user powered on to car, native system was started working.The video signal collective device CMOS camera collection video data of driveway deviation alarming system (being called for short the LDW system); Data are deposited in the buffer area FLASH of image processing module 2 behind analog-digital conversion a/d, buffer area FLASH stores the data of the not processed compressed that (as: 30 seconds) transmit in the certain hour continuously.When buffer area is filled with data; Buffer area discharges video data to the image compression processor DSP of image processing module 2; Image compression processor DSP carries out the asynchronous process of data, and the data that promptly current DSP handles compression are the video information of camera collection before 30 seconds.Data import image Compression module DSP by buffer area FLASH,, initial conditions DSP adopts low frame number mode to compress, and the data after will handling deposit memory module 5 in.Simultaneously MCU module 3 is handled the signal of CAN signaling modules 4, like vehicle condition signals such as LDW system information and danger button signals, and the form of the information of vehicles that collects with literal is deposited in the memory module 5.MCU module 3 is judged these information of vehicles; When the alerting signal that collects the LDW system, deviation line ball signal, fog lamp signal and danger button signal; Perhaps collect GES, damping force signal, when acceleration signal is excessive; MCU module 3 is sent trigger pip and is controlled image processing module 2 to image processing module 2 and starts image compression processor DSP and handle video information with high frame number compress mode and (adopt high frame number compression reason to be to guarantee to have under the trigger pip; Be compressed preservation like abundanter, smooth driving video under the situation such as LDW alarm, driving be too fast); The high frame number compression of The data that preceding 30 seconds of current line vehicle condition attitude is gathered also deposits data memory module 5 in; Delaying time, MCU module 3 control DSP return initial conditions after 120 seconds; Whether MCU module 3 continues to detect vehicle condition should be fit to send trigger pip; When the alerting signal of not depositing the LDW system, deviation line ball signal, fog lamp signal and danger button signal; Perhaps collect GES, damping force signal, acceleration signal when surpassing preset value, MCU module 3 control image processing modules 2 start image compression processor DSP and handle video information (adopt low frame number compression reason to be to need not to preserve too abundant smooth video information when surpassing preset value with nowhere to turn to alert signal and GES, damping force signal, acceleration signal, be system's conserve storage) with low frame number compress mode.When the power supply of vehicle was normally turned off, native system just can be closed.
When needs are consulted the content of automobile running record, use the USB Serial Port Line that interface is connected with computer through communication module 6.Adopt the USB2.0 universal serial bus, the DLL dynamic link library need not any driver, and this USB interface belongs to read-only interface.Because the finite capacity of storage space, the The data of collection cover at most the mode of event content and store.
Fig. 2 is the Project Realization figure of Fig. 1, and the image processing module 2 among Fig. 1 comprises image compression processor DSP circuit integrated in A/D modulus device, buffer area FLASH and the TMS320DM6446 chip among Fig. 2; MCU module 3 adopts the ARM chip circuit, and is integrated in the TMS320DM6446 chip; Data memory module 5 among Fig. 1 adopts the THSDKR5W4 chip corresponding to the SD storage card among Fig. 2; Communication module 6 adopts USB serial port circuit, data output end external circuits in the corresponding diagram 2 among Fig. 1.
Claims (10)
1. a drive recorder that combines with driveway deviation alarming system comprises MCU module (3), and the image processing module (2) that is connected with the MCU module respectively, CAN signaling module (4) and data memory module (5) is characterized in that:
Said image processing module (2) is connected the video signal collective device that this video signal collective module is a driveway deviation alarming system with a video signal collective module (1); The video signal collective device of driveway deviation alarming system is sent to the video data information of gathering the image processing module (2) of driveway deviation alarming system and drive recorder simultaneously; The MCU module is through the alerting signal of CAN signaling module reception driveway deviation alarming system, as the trigger pip of the high and low frame number compress mode conversion of video data in the image processing module (2).
2. a kind of drive recorder that combines with driveway deviation alarming system according to claim 1 is characterized in that: the COMS camera that said video signal collective device is a driveway deviation alarming system.
3. a kind of drive recorder that combines with driveway deviation alarming system according to claim 1 and 2; It is characterized in that: said MCU module (3) also receives GES, damping force signal, acceleration signal, deviation line ball signal, fog lamp signal and danger button signal through CAN signaling module (4), the trigger pip of changing as the video data compression mode.
4. a kind of drive recorder that combines with driveway deviation alarming system according to claim 1 and 2; It is characterized in that: said image processing module (2) comprises buffer area, image compression processor; Buffer area is preserved the video data that video signal collective module (1) is gathered in real time; Discharge the video data of preserving to image compression processor after a period of time; Make that the current packed data of DSP is the preceding for the previous period data of gathering of video signal collective module, realizes IMAQ, asynchronous compression memory.
5. a kind of drive recorder that combines with driveway deviation alarming system according to claim 4 is characterized in that:
The Flame Image Process compressor reducer is a dsp chip, is integrated in the TMS320DM6446 chip.
6. a kind of drive recorder that combines with driveway deviation alarming system according to claim 1 and 2 is characterized in that:
Said MCU module (3) is the ARM chip, is integrated in the TMS320DM6446 chip.
7. a kind of drive recorder that combines with driveway deviation alarming system according to claim 1 and 2; It is characterized in that: also comprise communication module (6), the driving video information of MCU module (3) through preserving in this communication module output data memory module (5).
8. a kind of drive recorder that combines with driveway deviation alarming system according to claim 7 is characterized in that: the chip that said communication module (6) adopts is a 68013A USB interface chip.
9. a kind of drive recorder that combines with driveway deviation alarming system according to claim 1 and 2 is characterized in that: the chip that said data memory module (5) adopts is THSDKR5W4.
10. a kind of drive recorder that combines with driveway deviation alarming system according to claim 1 and 2 is characterized in that: also comprise peripheral circuit (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100285825A CN102542635A (en) | 2012-02-09 | 2012-02-09 | Car recorder combined with lane deviation alarming system |
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| CN2012100285825A CN102542635A (en) | 2012-02-09 | 2012-02-09 | Car recorder combined with lane deviation alarming system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107146299A (en) * | 2017-04-27 | 2017-09-08 | 深圳市益光实业有限公司 | Drive recorder |
| WO2018120705A1 (en) * | 2016-12-29 | 2018-07-05 | 深圳前海弘稼科技有限公司 | Data processing method, apparatus and system |
| CN110239537A (en) * | 2019-06-19 | 2019-09-17 | 北京茵沃汽车科技有限公司 | A kind of active safety system of vehicle |
| CN112254977A (en) * | 2020-09-03 | 2021-01-22 | 北汽福田汽车股份有限公司 | Data processing method and device based on automatic emergency braking system |
| CN114495324A (en) * | 2022-01-28 | 2022-05-13 | 重庆长安新能源汽车科技有限公司 | Automobile data recorder based on FPGA and automobile |
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Application publication date: 20120704 |