CN201352835Y - On-vehicle navigation and audio-visual multimedia device with multi-path video record - Google Patents
On-vehicle navigation and audio-visual multimedia device with multi-path video record Download PDFInfo
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- CN201352835Y CN201352835Y CNU2009200506925U CN200920050692U CN201352835Y CN 201352835 Y CN201352835 Y CN 201352835Y CN U2009200506925 U CNU2009200506925 U CN U2009200506925U CN 200920050692 U CN200920050692 U CN 200920050692U CN 201352835 Y CN201352835 Y CN 201352835Y
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- 238000001914 filtration Methods 0.000 claims description 7
- 230000006870 function Effects 0.000 abstract description 41
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- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 206010045178 Tunnel vision Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of on-vehicle navigation and multimedia, in particular to an on-vehicle navigation and audio-visual multimedia device with multi-path video record; the device comprises a camera machine unit, a video cutting unit, a video recording unit and a main processor unit; the video cutting unit, the video recording unit and the main processor unit are connected mutually, and the camera machine unit is connected with the video cutting unit; the device also comprises a bottom plate control unit; the bottom plate control unit which can send corresponding command according to the received on-vehicle control signal is connected with the main processor unit. The device integrates all the on-vehicle electronic functions, the quantity and volume of equipment are effectively reduced, the reliability of the device is improved; therefore, the device can be widely applied to on-vehicle electronics.
Description
Technical field
The utility model relates to vehicle mounted guidance and multimedia technology field, refers in particular to a kind of vehicle mounted guidance and audio-visual multimedia device that possesses the multi-channel video record.
Background technology
Common in the market vehicle multimedia system, main integrated functions such as vehicle-carrying DVD, navigation, broadcast receiver, Digital Television, bluetooth, vehicle backing backsight.The blind zone problem that has solved rear view of vehicle when the position is gone in reversing for the vehicle backing backsight function is very practical.But in the vehicle ' process, can't solve the problem of existing rear view mirror blind zone.Particularly when turn inside diameter, doubling, because the blind area of the vehicle body side that cause existing rearview mirror installation site is to cause a major reason that has an accident in the vehicle ' process.The audio-video system amusement function of existing vehicle is powerful, but the safety function deficiency.
Summary of the invention
The technical problem that the utility model solves is to provide a kind of vehicle mounted guidance and audio-visual multimedia device of possessing the multi-channel video record with multiple function; Can realize carrying multiple functions such as navigation, DVD, radio reception, mobile digital TV, digital broadcast, bluetooth handsfree phone, videograph, accident record, additional rear view mirror blind zone.
The technical scheme that the utility model solves the problems of the technologies described above is: comprise shooting unit, video cutting unit, videograph unit and main processor unit; Video cutting unit, videograph unit and main processor unit interconnect, and the shooting unit is connected with the video cutting unit; Also include the base plate control unit, the described base plate control unit that can send command adapted thereto according to the Body Control signal of reception is connected with main processor unit.
Described shooting unit includes four-way CCD camera, is arranged at the position, front, rear, left and right of vehicle respectively.
The video that described shooting unit is taken records directly or from RAM through the consecutive image compressed encoding or behind the circulation compressed encoding in SD card, hard disk, USB flash disk or the machine on the storage medium such as FLASH.
Also include audio treatment unit, DVD unit and/or DTV unit, CDC DVD multidisc unit, electronic speed-determination unit, procotol resolution unit.
Also comprise radio reception unit and/or bluetooth unit.
Described audio treatment unit is made up of audio A/D converter, digital audio switch, digital audio processor, audio frequency DAC transducer, audio frequency low pass LPF active power filtering and audio frequency power amplifier.
The utility model has been integrated functions such as functions such as vehicle mounted guidance, DVD, radio reception, mobile digital TV, digital broadcast, bluetooth handsfree phone and automobile video recorder; On the function basis of realizing vehicle mounted guidance, DVD, radio reception, mobile digital TV, digital broadcast, bluetooth handsfree phone, the utility model is by being installed in No. 4 video cameras on the automobile, and, can also replenish blind area, rearview mirror visual angle by 4 road camera videos are cut apart combination.The driver can see the zone that reflective mirror be can't see in the driving way, thereby strengthens the fail safe of car steering.The video of taking by the unit of will making a video recording records through the consecutive image compressed encoding or behind the circulation compressed encoding in SD card, hard disk, USB flash disk or the machine on the storage medium such as FLASH; Can realize the quick on-the-spot record and the processing of traffic accident.In addition, the utlity model has video program source preview function simultaneously; The video of various video program sources in the device can be simultaneously displayed on the LCD screen in the mode of dwindling, for user's preview.When if which video program source the user need see, the direct video that dwindles by screen taps, device just is shown to this program source on the liquid crystal display screen with normal size, and the confession user watches.Simultaneously in reversing, owing to can show vehicle body image on every side, the safe ready more of moveing backward simultaneously.In the time of vehicle parking, utilize the ability of the burglar alarm that the videograph unit provides, the picture that vehicle in theft vehicle or the parking lot can also be collided is record in addition, quickens the process of solving a case.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified:
Accompanying drawing 1 is the utility model structured flowchart;
Accompanying drawing 2 is the utility model camera scheme of installations.
The explanation of accompanying drawing figure number
Shooting unit 1 video cutting unit 2
Base plate control unit 5 audio treatment units 6
7 DTV unit 8, DVD unit
Embodiment
See shown in the accompanying drawing 1, the utility model comprises 13 unit such as shooting unit 1, video cutting unit 2, videograph unit 3, main processor unit 4, base plate control unit 5, audio treatment unit 6, DVD unit 7, DTV unit 8, radio reception unit 9, bluetooth unit 10, accident detecting unit, GPS unit, power conversion unit, can comprise functional units such as CDC DVD multidisc unit, electronic speed-determination unit, procotol resolution unit in addition.Video cutting unit 2, videograph unit 3 and main processor unit 4 interconnect, and shooting unit 1 is connected with video cutting unit 2; Base plate control unit 5 is connected with main processor unit 4.The accident detecting unit is connected with the videograph unit, and the GPS unit is connected with main processor unit 4 with videograph unit 3; Power conversion unit is powered to each several part.Shooting unit 1 includes four-way CCD camera (the utility model is an example with four tunnel, but is not limited to this), is arranged at the position, front, rear, left and right of vehicle respectively; Its video records directly or from RAM through the consecutive image compressed encoding or behind the circulation compressed encoding in SD card, hard disk, USB flash disk or the machine on the storage medium such as FLASH.Audio treatment unit 6 is connected with video cutting unit 2 with main processor unit 4; DVD unit 7 is connected with the digital audio switch of audio treatment unit 6; DTV unit 8 is connected with video cutting unit 2 behind the video AD transducer, and is connected with the audio A/D converter of audio treatment unit 6; Radio reception unit 9, bluetooth unit 10 are connected with the audio A/D converter of audio treatment unit 6.
Device of the present utility model externally has multiple IO interface.Wherein main processor unit 4 external interfaces have SD card, USB2.0 interface, CAN2.0 network interface.Videograph unit 3 external interfaces comprise SD card and USB interface.Base plate control unit 5 external interfaces comprise the various signal input interfaces of vehicle, as automobile key line (ACC), astern signal (BACK), brake signal (BREAK), left direction signal (LEFT), right turn signal (RIGHT), car speed transducing signal interface (SPEED) etc.
The utility model video cutting unit 2 models are TW2835.Its vision signal is carried out analog-to-digital conversion, is for conversion into digital video signal; Then 4 videos are become a video pictures at chip internal, with the form output of ITU656.
In the utility model, the digital video input of videograph unit 3 is connected on video cutting unit 2 video-out ports, is mainly used in car driving video that unit 1 the collects record in addition of making a video recording outward.Under the situation of operate as normal, main processor unit 4 can instruct video cutting unit 2 that the video pictures of 4 bus body cameras input is synthesized a sub-picture, always exports with synthetic picture on video cutting unit 2 then; Thereby guaranteed that when driving the videograph unit always can record the image of the driving process of vehicle body 4 road camera acquisitions.
The major function of videograph unit 3 is exactly to the vision signal of video cutting unit 2 output image compression encoding in addition.And the cycle index in addition on RAM of the digital picture after will encoding.In case the generation traffic accident, if accident is smaller, the accident detecting unit can not trigger.At this moment the user can select to press the accident record button.In case the user presses the accident record button, videograph unit 3 will record the image before and after the accident that is stored on the RAM on SD card or the USB dish.If accident is more serious, at this moment the accident detecting unit can trigger videograph unit 3, will be stored in accident video record before and after the accident on the RAM on SD card or USB dish, thereby realizes the function of automatic accident record.
After vehicle was flame-out, base plate control unit 5 detected ACC key signal output low level, and base plate control at this moment can be closed most supply modules by the instruction power converter unit for single 5 yuan, only keeps the power supply to the accident detecting unit.The sensitivity that the detecting unit of instruction accident simultaneously raising accident detects.In case vehicle suffers external impact or bump in parking period, the accident detecting unit can notify base plate control unit 5 to open all power supplys relevant with accident record at once, comprises vehicle body camera power supply, videograph unit power supply etc.And the photologging of the accident after will bumping or clash into is on SD card or USB dish.Through behind the record of some time, base plate control unit 5 can be closed by the power supply that whole recording section is relevant once more.Utilize this function, in the time of can realizing vehicle parking to the videograph of external impact or thievery.Thereby can help the car owner to seek the troublemaker or the thief of vehicle impact when parking effectively.When utilizing this power management also to effectively reduce vehicle parking simultaneously, this device is to the consumption of automobile batteries.
The mobile communication module of all forms is supported in videograph unit 3.In case theft takes place or the bump accident when parking, can also pass through mobile communication module, with note, make a phone call or the mode of multimedia message is notified the car owner.And utilize mobile communication module, with the vehicle body camera acquisition to image scene send to the car owner place in the mode of multimedia message, thereby kept first hand evidence for vehicle is stolen.
Utilize video cutting unit 2 video of 4 bus body camera acquisitions can be synthesized one road video, and can select simultaneously from the characteristic of DoutX and the output of DoutY port, this device can be realized in the driving process on one side the image of vehicle body camera acquisition record in addition, and on one side these images are shown on the LCD display by Main Processor Unit 4, thereby realize the blind function of rearview mirror benefit, realize safer driving.Particularly in vehicle left steering or right turn process, if having near the vehicle body side reflective mirror in pedestrian or other vehicles, reflective mirror is actually be can't see.Directly turn if the driver is careless, tend to cause the accident.After having had the visual angle of this device to mend blind function, the driver just can utilize this function to replenish the blind area of reflective mirror well, thereby realizes safer driving.
In this programme, the digital video input of videograph unit is connected on the DoutX video-out port, is mainly used in car driving video that unit 1 the collects record in addition of making a video recording outward.Therefore under the situation of operate as normal, main processor unit 4 can instruct the video cutting unit with the synthetic piece image of the video pictures of 4 bus body video cameras input, always synthetic picture is exported on DoutX and VAOUTX output port then, thereby guaranteed that when driving the videograph unit always can record the image of the driving process of vehicle body 4 road camera acquisitions.And VAOUTX is an analog video output signal, and the content and the DoutX of its output are identical.The signal of video output is connected to the external video input of automobile audio-visual multimedia signal.The video pictures of outer 4 road camera acquisitions of this sample car after process TW2835 synthesizes a picture, can output on the display of automobile audio-visual multimedia device from VAOUTX, and 4 pictures are shown simultaneously.Installation site by 4 video cameras of meticulous layout, just can collect the image of the blind area that rearview mirror can't see, left and right sides fade chart picture particularly, and on the LCD liquid crystal display screen of automobile audio-visual multimedia device, shown, thereby realize the blind function of rearview mirror benefit, realize safer driving function.Camera arrangements is as shown in Figure 2 when utilizing 4 video cameras to replenish the blind area, visual angle:
At first setting up the vehicle body coordinate system, is Y-axis with the center line along the vehicle body fore-and-aft direction, and is positive direction with the direction of headstock.In the vehicle body horizontal plane, perpendicular to Y-axis, and the line on sensing vehicle body right side is an X-axis.According to the right-handed helix rule, perpendicular to XOY plane, the line that points to roof is the Z axle.4 video cameras have been installed on the vehicle body.A forward direction, a left side, a right side and a rear view camera.If the camera lens visual angle of these 4 video cameras is respectively γ
0, γ
1, γ
2, γ
3After having 3 on the vehicle to reflective mirror, promptly behind nearside mirror, right reflective mirror and the Che Nei to reflective mirror.If the visual angle of these several reflective mirrors is respectively β
1, β
2And β
0If after left side camera and right side video camera were installed, visual angle normal and vehicle body X-axis angle were respectively θ
1And θ
2The angle of left side camera and reflective mirror visual angle, left side normal is α
1The angle of right side video camera and reflective mirror visual angle, right side normal is α
2Choose reasonable video camera visual angle γ
0, γ
1, γ
2, γ
3, and select the rational setting angle θ in side
1And θ
2, the blind area that just can replenish the left and right sides reflective mirror well, thus realize safer driving.TW2835 not only can synthesize a picture with 4 pictures simultaneously, any 1 in 4 pictures, any two and any 3 pictures can also be synthesized a complete picture and is shown.The user in use instructs by sending to the videograph unit, and the videograph unit just can instruct TW2835 to change the synthetic strategy of picture again by the I2C bus.Particularly the picture of two video cameras in left side and right side is synthesized a picture and be presented on the screen, mending blind effect will be desirable more.Effect as shown in Figure 4.
This programme is mended the blind function except finishing vehicle ' writing function and rearview mirror, also possesses DVD/CD/VCD/MP3 video disc playing function, function of radio receiver, mobile digital TV playing function, plays multi-media player function, bluetooth earphone and data-transformation facilities such as digital movie, digital music, full visual angle car-backing function, inserts functions such as vehicle body network by SD card or USB dish.
This programme possesses DVD/CD/VCD/MP3 video disc playing function, plays Digital Television, plays iPOD or plays the function of assisting incoming video signal.Above-mentioned these video signal sources all are connected on the analog video input channel of video AD C transducer.Video AD C transducer is by receiving the instruction of main processor unit 4, can be with in addition digital-to-analogue conversion of one tunnel vision signal wherein.Digital video signal after the conversion outputs to the PBIN input port of video cutting unit 2 with the form of ITU656.In normal operation, primary processor can instruct video cutting unit 2 to switch on the DoutY output port from the digital video signal of PBIN interface input.Because the DoutY output port is connected with main processor unit 4 video input interfaces, therefore the vision signal of exporting from the DoutY port can be presented on the LCD LCD Panel by main processor unit 4.Utilize this mode, except the video that the DVD unit is play is presented on the LCD liquid crystal display screen, main processor unit 4 can also be passed through the incoming video signal passage of instruction Switch Video ADC unit, plays Digital Television, plays iPOD or plays the function of assisting incoming video signal thereby reach.
DVD/CD/VCD/MP3 video disc playing function is realized by DVD unit 7.This unit is made up of movement and servo decoding device.The Play Control of DVD unit 7 is realized by the UART serial ports.Main processor unit 4 sends instruction by this serial ports, just can realize that the DVD player core is play, suspends, stopped, F.F., rewind down, play next song, the last song of broadcast, directly selects all functions of DVD/CD/VCD/MP3 broadcasts such as song.In playing process, the digital audio and video signals of analog video image signals and I2S form is directly exported in DVD unit 7.
The Digital Television playing function is realized that by DTV unit 8 this unit is made up of 3 parts such as Digital Television receiver turning, baseband processor and digital television decoder.Digital television decoder can be exported the Voice ﹠ Video signal of simulation, and enters corresponding analog video ADC and analogue audio frequency ADC port.The search functions such as platform, channel selection, radio station memory of Digital Television in playing process send the instruction realization by main processor unit 4 by the UART serial ports.
The function of radio receiver of this device is realized by radio reception unit 9.This unit is realized by the radio reception module of maturation.The stereo audio signal of radio reception module output enters the corresponding port of analogue audio frequency ADC.The broadcast receiver functions such as platform, channel selection, radio station memory of searching in use send the instruction realization by main processor unit by the I2C serial ports.
The vehicle mounted guidance function of this device is realized by main processor unit 4.The core of main processor unit 4 is by embedded SoC processor chips.This can move operating means such as WinCE, Linux above chip.Navigation software is installed on the high-capacity FLASH that carries in external SD card memory or the unit.Navigation software receives the navigation message that the GPS unit sends by the UART serial ports, does fusion with the digital map data of its data stock storage, thereby realizes navigation feature.
The vehicle-mounted digital electricity sound MP3 playing function of this device is realized by main processor unit 4.The user is stored in digital movie on the high-capacity FLASH memory that SD card or USB dish or this machine carry.By multimedia software, the user can be realized that the film or the mp3 file that prestore are play.The image of playing directly is sent to the LCD liquid crystal display screen in primary processor inside and is shown.The sound of playing outputs on the digital audio switch by the I2S audio-frequency bus of main processor unit.Under the control of main processor unit 4, digital audio is sent on the digital audio processor, thereby realizes sound-playing function.
Claims (10)
1, a kind of vehicle mounted guidance and audio-visual multimedia device that possesses the multi-channel video record comprises: shooting unit (1), video cutting unit (2), videograph unit (3) and main processor unit (4); Video cutting unit (2), videograph unit (3) and main processor unit (4) interconnect, and shooting unit (1) is connected with video cutting unit (2); It is characterized in that: also include base plate control unit (5), the described base plate control unit (5) that can send command adapted thereto according to the Body Control signal of reception is connected with main processor unit (4).
2, vehicle mounted guidance and the audio-visual multimedia device that possesses the multi-channel video record according to claim 1, it is characterized in that: described shooting unit (1) includes four-way CCD camera, is arranged at the position, front, rear, left and right of vehicle respectively.
3, vehicle mounted guidance and the audio-visual multimedia device that possesses multi-channel video record according to claim 1 and 2 is characterized in that: the video that described shooting unit (1) is taken records directly or from RAM through the consecutive image compressed encoding or behind the circulation compressed encoding in SD card, hard disk, USB flash disk or the machine on the storage medium such as FLASH.
4, vehicle mounted guidance and the audio-visual multimedia device that possesses the multi-channel video record according to claim 1 and 2 is characterized in that: also include audio treatment unit (6), DVD unit (7) and/or DTV unit (8), CDC DVD multidisc unit, electronic speed-determination unit, procotol resolution unit.
5, vehicle mounted guidance and the audio-visual multimedia device that possesses the multi-channel video record according to claim 3 is characterized in that: also include audio treatment unit (6), DVD unit (7) and/or DTV unit (8), CDC DVD multidisc unit, electronic speed-determination unit, procotol resolution unit.
6, vehicle mounted guidance and the audio-visual multimedia device that possesses the multi-channel video record according to claim 4 is characterized in that: also comprise radio reception unit (9) and/or bluetooth unit (10).
7, vehicle mounted guidance and the audio-visual multimedia device that possesses the multi-channel video record according to claim 5 is characterized in that: also comprise radio reception unit (9) and/or bluetooth unit (10).
8, vehicle mounted guidance and the audio-visual multimedia device that possesses the multi-channel video record according to claim 4, it is characterized in that: described audio treatment unit (6) is made up of audio A/D converter, digital audio switch, digital audio processor, audio frequency DAC transducer, audio frequency low pass LPF active power filtering and audio frequency power amplifier.
9, vehicle mounted guidance and the audio-visual multimedia device that possesses the multi-channel video record according to claim 5, it is characterized in that: described audio treatment unit (6) is made up of audio A/D converter, digital audio switch, digital audio processor, audio frequency DAC transducer, audio frequency low pass LPF active power filtering and audio frequency power amplifier.
10, vehicle mounted guidance and the audio-visual multimedia device that possesses the multi-channel video record according to claim 6, it is characterized in that: described audio treatment unit (6) is made up of audio A/D converter, digital audio switch, digital audio processor, audio frequency DAC transducer, audio frequency low pass LPF active power filtering and audio frequency power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200506925U CN201352835Y (en) | 2009-01-22 | 2009-01-22 | On-vehicle navigation and audio-visual multimedia device with multi-path video record |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200506925U CN201352835Y (en) | 2009-01-22 | 2009-01-22 | On-vehicle navigation and audio-visual multimedia device with multi-path video record |
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| Publication Number | Publication Date |
|---|---|
| CN201352835Y true CN201352835Y (en) | 2009-11-25 |
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| CNU2009200506925U Expired - Fee Related CN201352835Y (en) | 2009-01-22 | 2009-01-22 | On-vehicle navigation and audio-visual multimedia device with multi-path video record |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083635A1 (en) * | 2009-01-22 | 2010-07-29 | Chen Bingbing | Vehicle-mounted navigation and video/audio multimedia system with multiple video recording |
| US20230027611A1 (en) * | 2021-07-26 | 2023-01-26 | Realtek Semiconductor Corporation | Power supply device, power supply system and non-transitory computer-readable recording medium |
-
2009
- 2009-01-22 CN CNU2009200506925U patent/CN201352835Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083635A1 (en) * | 2009-01-22 | 2010-07-29 | Chen Bingbing | Vehicle-mounted navigation and video/audio multimedia system with multiple video recording |
| US20230027611A1 (en) * | 2021-07-26 | 2023-01-26 | Realtek Semiconductor Corporation | Power supply device, power supply system and non-transitory computer-readable recording medium |
| US11991011B2 (en) * | 2021-07-26 | 2024-05-21 | Realtek Semiconductor Corporation | Power supply device, power supply system and non-transitory computer-readable recording medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091125 Termination date: 20180122 |