CN104554057A - Vision-based active safety system with car audio and video entertainment function - Google Patents
Vision-based active safety system with car audio and video entertainment function Download PDFInfo
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- CN104554057A CN104554057A CN201410837223.3A CN201410837223A CN104554057A CN 104554057 A CN104554057 A CN 104554057A CN 201410837223 A CN201410837223 A CN 201410837223A CN 104554057 A CN104554057 A CN 104554057A
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- 238000004891 communication Methods 0.000 claims description 5
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- 230000004927 fusion Effects 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R2011/0294—Apparatus with multi-functionalities, e.g. radio and telephone
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- Engineering & Computer Science (AREA)
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
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Abstract
The invention provides a vision-based active safety system with a car audio and video entertainment function. A main processor, a Camera video decoding chip, a Flash memory, a power management chip and the like are arranged in a machine shell; a display touch screen and a key panel are arranged on the machine shell; the key panel is provided with an AUX (auxiliary) inputting opening and various functional keys; an inputting end of the main processor is connected with the power management chip, the Camera video coding chip, an Audio Dsp (digital signal processor) and a power amplifier chip; the Camera video decoding chip is connected to four cameras distributed on the periphery of a car body; and the cameras are used for 360-degree round-looking, lane changing warning, park assisting and driving recording. By the vision-based active safety system with the car audio and video entertainment function, a car audio and video entertainment system and an ADAS (advanced driver assistance system) are integrated, and the costs of structures, circuit boards and software can be greatly reduced; and functions are switched over by keys of the touch screen or hard keys, active safety can be implemented on a car safely and conveniently, and the vision-based active safety system shows a direction for future development of the ADAS.
Description
Technical field
The present invention relates to a kind of vehicle-mounted video and music entertainment system, particularly relate to the active safety system of the audio-visual amusement function of a kind of integrated on-board.
Background technology
Due to the advanced drive assistance function of view-based access control model ADAS() there is the features such as cost is low, accuracy is high, visual, the ADAS of view-based access control model applies more and more extensive in field of automobile safety, has become one of electronic machine indispensable in automobile safety system.At present, on market, the ADAS product of existing view-based access control model mainly contains following two features: are 1. independently electronic machines, as being arranged on automobile, needing the console space outside occupying volume and takies independently wiring harness interface and bus resource.2. function singleness, only for a certain application-specific (as only having cruise, or only have 360o to look around, or only have lane change alarm etc.), not by integrated in same system of multiple image recognition technology.
In a word, independently ADAS not only function singleness, and the console space needing outside occupying volume, add the number of nodes of ECU, bus load and user operation complexity, be unfavorable for vehicle loading, incompatible with the theory of current vehicle electronics high-density integrated.
Summary of the invention
The object of the present invention is to provide the active safety system of the audio-visual amusement function of a kind of integrated on-board of view-based access control model, the ADAS of integrated audio-visual amusement function is replaced original vehicle-mounted video and music entertainment system, occupy the position of video and music entertainment system on original console, this system except there is original audio-visual amusement function, also have that 360o looks around, lane change alarm, drive recorder, the function such as auxiliary of parking; The system reduces the quantity of vehicle electronic device, reduce Can bus load, improve electronic machine integration degree, improve car load environment and Consumer's Experience, simultaneously, this system provides the active safety technologies application of multiple view-based access control model, meet the multiple demand for security of user under different road conditions.
For achieving the above object, technical scheme of the present invention is: a kind of active safety system of the audio-visual amusement function of integrated on-board of view-based access control model, comprise body fuselage, LCD display, AUX input port, key panel, Audio processing module, Media processing module, Wifi processing module, bluetooth processing module, Can signal transmitting and receiving module, HMI display module, primary processor, Camera video decoding chip, Flash stores, power management chip, Audio Dsp, Can signal processing chip, WIFI/ Bluetooth chip and power amplifier chips, it is characterized in that: body fuselage is built with primary processor, Camera video decoding chip, Flash stores, power management chip, Audio Dsp, Can signal processing chip, WIFI/ Bluetooth chip and power amplifier chips, display touch-screen is housed above body fuselage, key panel, key panel is provided with AUX input port, radio buttons, multimedia button, Bluetooth transmission button, Wifi button, to make a phone call button, described primary processor input end connects power management chip, Camera video decoding chip, Audio Dsp, power amplifier chips, described Camera video decoding chip connects four cameras being distributed in vehicle body surrounding, look around for 360o, lane change alarm, auxiliary, driving recording of parking, described primary processor mouth connects LCD display.
Carried out the transmitting-receiving of data-signal by interprocess communication mode between described Audio processing module, Media processing module, Wifi processing module, bluetooth processing module, each module is connected with power management module, controls each module startup/post-set time, state by power management module is unified.
Described LCD display 2 is LCD display touch-screen.
Described Flash stores, Can signal processing chip transmits with two-way signaling between primary processor and is connected.
Described Can signal transmitting and receiving module, for being responsible for receiving from Vehicle Body Bus and sending Can signal to bus, being exchanged with the ECU of vehicle body by Can signal, accepting Can network management and status tracking signal.
Described HMI display module, for showing the picture of Infotainment or ADAS function.
Beneficial effect of the present invention:
The present invention had both had the basic function of vehicle entertainment system, Source Music, multimedia, Bluetooth transmission, Wifi, made a phone call, and had again the function of vision ADAS, as 360o look around, lane change alarm, auxiliary, drive recorder of parking.ADAS module and vehicle carried video entertainment modules are all-in-ones on surface structure, without the need to using extra framing member and screen, also do not take additional space.ADAS and audio-visual entertainment modules become overall on circuit structure, share same treater, system power supply, signal input etc.ADAS and audio-visual entertainment modules become overall in software architecture, and use linux kernel, software module and the audio-visual entertainment software intermodule equality of ADAS are got along, and can carry out interprocess communication.
The present invention compares with existing view-based access control model ADAS product, and its effect is actively with obvious.Vehicle-mounted video and music entertainment system is not only saved hardware resource and structure space with SurroundView, LDW together with the function i ntegration such as drive recorder, and provide environment and basis, as radar chip, G-Sensor etc. for the development of ADAS multi-sensor fusion technology.
Accompanying drawing explanation
Fig. 1 is the appearance part figure of present system;
Fig. 2 is the electron diagram of present system;
Fig. 3 is the software architecture figure of present system;
Fig. 4 is the picture distribution graph that the 360o of present system looks around display;
Fig. 5 is the LDW alarm schematic diagram of present system.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
A kind of active safety system of the audio-visual amusement function of integrated on-board of view-based access control model, comprise: containment structure part, circuit motherboard and header board, read-out, wire harness connector, camera, control panel key component, the ADAS of integrated audio-visual amusement function will replace original vehicle-mounted video and music entertainment system, occupy the position of video and music entertainment system on original console.New system except there is original audio-visual amusement function, also have that 360o looks around, lane change alarm, drive recorder, the function such as auxiliary of parking.Therefore, new system decrease vehicle electronic device quantity, reduce Can bus load, improve electronic machine integration degree, improve car load environment and Consumer's Experience, simultaneously, new system provides the active safety technologies application of multiple view-based access control model, meets the multiple demand for security of user under different road conditions.
On surface structure, comprise the parts such as body fuselage, system power supply, read-out, wire harness, panel button.The button of new system mainly contains: radio receiver (Radio), multimedia (Media), phone (Phone), USB play, AUX play, volume key and 360o looks around, lane change alarm (LDW), the function button such as auxiliary (PA) and drive recorder (DVR) of parking.Button presses rear equal correspondence independently functional response.In addition, four-way CCD camera input is had to be connected on wire harness connector.
On electronic structure, new system mainly contains Power supply, primary processor, Can signal transceiver, Audio and the compositions such as electronic devices and components such as Video Decoder, Camera video frequency processing chip.Wherein, Camera video frequency processing chip is used for processing the signal (CVBS) transmitted from four road Camera, primary processor can be supplied by this chip to carry out the form (general YUV422 form) processed converting to after the process of CVBS signal decoding, carrying out processes and displays for software.
In software architecture, the modules such as new system has (SuSE) Linux OS kernel, IO drives layer, power management, the process of Can bus signals, key scan, Video coding and decoding, HMI display, 360o look around, LDW, auxiliary, the drive recorder of parking, and the composition such as the necessary Audio processing module of Infotainment function, Media processing module, Wifi processing module, bluetooth processing module.The mode of interprocess communication can be used between all software modules to carry out signal and data transmit-receive, and startup/post-set time, the state of each module control by power management module is unified.
In system logic, after pressing Power key, system electrification starts, and enters flash demo, each external equipment of initialization successively, receives the stages such as car load Can network signal, then enter standby picture, wait for that user presses other key-press input.Pressing Media, Phone, Radio as user or insert USB flash disk etc., by triggering each function of Infotainment system, carrying out audio-visual broadcasting.ADAS function will be triggered as user presses 360oSurroundView, LDW, DVR.Wherein:
360oSurroundView: obtaining after the CVBS signal transmitted from four-way CCD camera being carried out decoding conversion can for four road YUV422 image of master chip display.Use image processing techniques, four width YUV422 images are carried out cut out, splice, distortion, a width 360o panorama sketch can be obtained after the process such as fusion.Panorama sketch is the top view (Top View) of based target car, is all around forward sight respectively, backsight, a left side look camera depending on, the right side.Forward sight camera is generally arranged in air-inlet grille grid, and rearview camera is arranged near license plate, and a left side is arranged on below left-hand mirror depending on camera, and the right side is arranged on below right rear view mirror depending on camera, is all flake wide-angle camera.Receive vehicle body information by Can bus, as gear, steering indicating light, bearing circle etc., under different road conditions and scene, show personalized panoramic information.As when reverse gear, display panorama adds back view picture, and turning on right steering lamp, the speed of a motor vehicle shows the right sides depending on adding back view picture etc. lower than 5 kilometers/hour.
Lane change alarm (Lane Departure Warning): the picture signal of coming with forward sight thecamera head is input, LDW software algorithm is caught, the lane mark identified on road, and according to body width in nominal data, judge whether two sidecar wheels delay unloading diatom.When two sidecar wheels roll lane mark, algorithm identifies by calculating and determines according to the steering indicating light information obtained from Can bus the information that whether gives a warning.If steering indicating light is not opened, LDW algorithm sends alarm sound order to Audio software module, sends the Can message of vibration of steering wheel to electrical-control steering wheel control ECU simultaneously.Make vehicle-mounted loudspeaker send out alarm sound and bearing circle shakes, remind chaufeur travel direction to depart from.If steering indicating light is opened, even if LDW algorithm identifies vehicle line ball situation, also can not alarm.
Drive recorder (Digital Video Recorder): gather the video of coming from four thecamera head, because camera is wide-angle fish-eye camera, so need to be carried out by image stretching, cutting out, then preserves.According to the amount of capacity of storage card, when an insufficient storage space exists, the video before can overriding, carries out loop recording, and four-way CCD camera is independently recorded and play.
Embodiment:
As shown in Figure 1, the present invention is made up of body fuselage 1, display touch-screen 2, connector 3, AUX input port 4, key panel etc. in appearance.Wherein, system power supply, Can signal and four cameras being distributed in vehicle body surrounding connect by connector.When there being button to press, key scan program will be activated, and corresponding function will be triggered.
As shown in Figure 2, the present invention comprises on electronic structure: primary processor, LCD show the compositions such as touch-screen, Camera video decoding chip, Flash storage, power management chip, Audio Dsp, Can signal processing chip, WIFI/ Bluetooth chip and power amplifier chips.Primary processor is the multi core chip of a band image/video processing capacity, can process the image of coming from thecamera head on four roads simultaneously.
As shown in Figure 3, the present invention comprises in software architecture: kernel and plate level drive that layer, interlayer, power management, key scan, Can signal transmitting and receiving, 360o look around, LDW, DVR, Audio, Media, Tuner, BlueTooth, WIFI, HMI display module etc.Wherein, kernel is linux system, and plate level drives as each device driver module under linux system.Interlayer is service layer between bottom and upper layer application layer, for the transmission of bottom condition managing, signal and the management etc. of task status.Can signal transmitting and receiving module in charge receives from Vehicle Body Bus and sends Can signal to bus, and new system is exchanged by other ECU of Can signal and vehicle body, accepts Can network management and status tracking.HMI display module is in the superiors in software architecture, for showing Infotainment(audio system, communication, navigation and display system) or ADAS(advanced person drive auxiliary) picture of function.HMI module carries out switching by the message receiving other module (as Media or SurroundView) between different display frame.
The HMI display page of the present invention when 360o panorama shows as shown in Figure 4.Be divided into left and right two parts, left half shows the single view of a direction, right half display vehicle 360o panorama TopView figure.Mode selecting button is had: 1. forward sight below left half, when pressing this button, the large figure of full screen display forward sight.2. backsight, when vehicle is in " reverse gear " or presses this button, the large figure of full screen display backsight.3. panorama+forward sight, when this button is pressed, screen left-half display front elevation, right half part display panorama sketch.4. panorama+backsight, when this button is pressed, screen left-half display back view, right half part display panorama sketch.5.+backsight is looked on the right side, and when the bearing circle of vehicle is in " right 540o " and right steering lamp is opened, or when this button is pressed, screen left-half display back view, right half part display right elevation, facilitates user's pulling over observing.
As illustrated shown in 5, LDW is alarm region demonstration graph after startup optimization.Be the illustraton of model of automobile four wheels in the middle of diagram, the right and left is lane mark.With reference to ISO17361 standard, if wheel is in the side (bc section and de section) of line ball, then should send alarm, and if wheel is in the side of run-off-road line time (ab section or ef section), then should not give the alarm.At present, bc section, de section are configured to 30cm, can adjust according to regional actual conditions.LDW after operation, does not have HMI to show, and diagram 5 is just reported to the police demonstration graph.
Claims (6)
1. the active safety system of the audio-visual amusement function of the integrated on-board of a view-based access control model, comprise body fuselage, LCD display, AUX input port, key panel, Audio processing module, Media processing module, Wifi processing module, bluetooth processing module, Can signal transmitting and receiving module, HMI display module, primary processor, Camera video decoding chip, Flash stores, power management chip, Audio Dsp, Can signal processing chip, WIFI/ Bluetooth chip and power amplifier chips, it is characterized in that: described body fuselage is built with primary processor, Camera video decoding chip, Flash stores, power management chip, Audio Dsp, Can signal processing chip, WIFI/ Bluetooth chip and power amplifier chips, display touch-screen is housed above body fuselage, key panel, key panel is provided with AUX input port, radio buttons, multimedia button, Bluetooth transmission button, Wifi button, to make a phone call button, described primary processor input end connects power management chip, Camera video decoding chip, Audio Dsp, power amplifier chips, described Camera video decoding chip connects four cameras being distributed in vehicle body surrounding, look around for 360o, lane change alarm, auxiliary, driving recording of parking, described primary processor mouth connects LCD display.
2. the active safety system of the audio-visual amusement function of the integrated on-board of view-based access control model according to claim 1, it is characterized in that: the transmitting-receiving being carried out data-signal between described Audio processing module, Media processing module, Wifi processing module, bluetooth processing module by interprocess communication mode, each module is connected with power management module, controls each module startup/post-set time, state by power management module is unified.
3. the active safety system of the audio-visual amusement function of the integrated on-board of view-based access control model according to claim 1, is characterized in that: described LCD display is that LCD shows touch-screen.
4. the active safety system of the audio-visual amusement function of the integrated on-board of view-based access control model according to claim 1, is characterized in that: described Flash stores, Can signal processing chip transmits with two-way signaling between primary processor and is connected.
5. the active safety system of the audio-visual amusement function of the integrated on-board of view-based access control model according to claim 1, it is characterized in that: described Can signal transmitting and receiving module, for being responsible for receiving from Vehicle Body Bus and sending Can signal to bus, exchanged with the ECU of vehicle body by Can signal, accept Can network management and status tracking signal.
6. the active safety system of the audio-visual amusement function of the integrated on-board of view-based access control model according to claim 1, is characterized in that: described HMI display module, for showing the picture of Infotainment or ADAS function.
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| CN201410837223.3A CN104554057A (en) | 2014-12-24 | 2014-12-24 | Vision-based active safety system with car audio and video entertainment function |
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| CN201410837223.3A CN104554057A (en) | 2014-12-24 | 2014-12-24 | Vision-based active safety system with car audio and video entertainment function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104933775A (en) * | 2015-06-23 | 2015-09-23 | 陈元喜 | A driving recorder with video and audio playback functions |
| CN105253072A (en) * | 2015-08-17 | 2016-01-20 | 深圳市美好幸福生活安全系统有限公司 | Dual camera system for vehicle-mounted ADAS and automobile data recorder |
| CN105882548A (en) * | 2016-04-29 | 2016-08-24 | 惠州市华阳多媒体电子有限公司 | HUD (Head Up Display) |
| CN106375171A (en) * | 2016-08-29 | 2017-02-01 | 奇瑞商用车（安徽）有限公司 | CAN communication-based text transmission method |
| CN106454617A (en) * | 2016-09-08 | 2017-02-22 | 卡桑德电子科技（扬州）有限公司 | Intelligent vehicle-mounted sound system with built-in digital audio signal processing module and working method thereof |
| CN110557144A (en) * | 2018-05-30 | 2019-12-10 | 上海擎感智能科技有限公司 | vehicle-mounted terminal |
| CN110650305A (en) * | 2019-10-08 | 2020-01-03 | 深圳智者行天下科技有限公司 | Method for rapidly processing reversing image by intelligent rearview mirror |
| CN114863584A (en) * | 2022-03-11 | 2022-08-05 | 重庆金康赛力斯新能源汽车设计院有限公司 | Automobile data recorder data processing method, device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104933775A (en) * | 2015-06-23 | 2015-09-23 | 陈元喜 | A driving recorder with video and audio playback functions |
| CN105253072A (en) * | 2015-08-17 | 2016-01-20 | 深圳市美好幸福生活安全系统有限公司 | Dual camera system for vehicle-mounted ADAS and automobile data recorder |
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| CN110650305A (en) * | 2019-10-08 | 2020-01-03 | 深圳智者行天下科技有限公司 | Method for rapidly processing reversing image by intelligent rearview mirror |
| CN114863584A (en) * | 2022-03-11 | 2022-08-05 | 重庆金康赛力斯新能源汽车设计院有限公司 | Automobile data recorder data processing method, device and system |
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Inventor after: Du Yingkun Inventor after: Xu Huanhuan Inventor after: Zhang Ling Inventor before: Du Yingkun Inventor before: Xu Huanhuan |
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Application publication date: 20150429 |