CN102419999A - Multi-media system of automobile - Google Patents
Multi-media system of automobile Download PDFInfo
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- CN102419999A CN102419999A CN2011102975445A CN201110297544A CN102419999A CN 102419999 A CN102419999 A CN 102419999A CN 2011102975445 A CN2011102975445 A CN 2011102975445A CN 201110297544 A CN201110297544 A CN 201110297544A CN 102419999 A CN102419999 A CN 102419999A
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Abstract
The invention relates to a multi-media system of an automobile, which comprises a multi-media center with a server function, a principle broadcasting machine and multiple auxiliary broadcasting machines, wherein the multi-media center is provided with a digital signal processor, a plurality of analog radio receivers and digital broadcasting receivers and is connected with the principle broadcasting machine and the multiple auxiliary broadcasting machines by wireless signals so as to realize point-to-point communication; and the multi-media center supplies different kinds of audio/video signals according to the requirements of the principle broadcasting machine and the multiple auxiliary broadcasting machines. The principle broadcasting machine is arranged nearby a driving seat and is controlled by the driving seat to realize the selection of broadcasts and audios/videos of the multi-media center; and the multiple auxiliary broadcasting machines are arranged at the backrests of a front row of seats and are used by users for selecting to play the broadcasts and audios/videos of the multi-media center. The invention has the beneficial effects: the vehicle-mounted multi-media system can adapt to the individuation requirements of passengers, realizes that the different passengers simultaneously watch or listen in different audio/video programs, and is convenient to operate, thus the entertainment of the vehicle-mounted multi-media system is greatly promoted, and the marketable value of the vehicle-mounted multi-media system is also increased.
Description
Technical field
The present invention relates to a kind of vehicle multimedia system.
Background technology
Present vehicle multimedia system all is to adopt cable or optical cable to propagate audio-video signal, connects inconvenience and upgrading difficulty; So-called upgrading also is to increase a little functional modules on original some function choosing-items, as increasing the DVD multidisc machine, increases digital broadcasting receiving apparatus etc.); Several passengers can only listen same radio station; Can not listen different radio station, same video can not be seen the different time point, can't satisfy the personalized requirement of passenger.
Summary of the invention
Technical matters to be solved by this invention provides a kind of vehicle multimedia system that can play multiple audio-video signal according to different passenger's needs simultaneously.
For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize: a kind of vehicle multimedia system is provided, comprises:
One multimedia hub, it has server capability, the digital signal processor, the storer that have central processing unit and be connected with central processing unit, this digital signal processor connects a plurality of simulation radio reception receivers and digit broadcasting receiver;
One plays main frame, and the digital signal processor, the storer that have central processing unit and be connected with central processing unit also comprise the power amplifier that is connected with digital signal processor; Said broadcast main frame and multimedia hub communication are obtained media content from multimedia hub, and this media content offers the user through loudspeaker output successively after digital signal processor, power amplifier are handled;
The secondary machine of a plurality of broadcasts; Comprise main control unit and connected earphone driver element, storer; Each plays all independent and multimedia hub communication of secondary machine, obtains independently media content from multimedia hub, via earphone drive unit drives earphone media content is offered the user.
Further, in the secondary machine of said multimedia hub and broadcast main frame and a plurality of broadcast wireless transceiver is set all, multimedia hub is connected the realization communication through wireless signal respectively with broadcast main frame and the secondary machine of a plurality of broadcast.
Wireless transceiver preferably adopts the WiFi module, and multimedia hub is realized point-to-point communication with the WiFi module of playing main frame and play in the secondary machine.
Further, said broadcast main frame is located near the operator seat, is realized selecting the broadcasting and the audio frequency and video at play multimedia center by operator seat control; The secondary machine of said broadcast is arranged at the front-row seats backrest, supplies back row passenger to select the broadcasting and the audio frequency and video at play multimedia center.
Preferably, said broadcast main frame also is provided with satnav receiver and omniselector, and the two all interior with playing main frame central processing unit is connected.
Compared with prior art; Beneficial effect of the present invention is: said in-vehicle multi-media system can adapt to passenger's individual demand; Realize that different passengers watch or listen to different audio or video programs simultaneously; And easy to operate, promote the recreational of in-vehicle multi-media system greatly, promote marketable value.
Description of drawings
The said vehicle multimedia system principle of Fig. 1 is formed schematic block diagram;
Fig. 2 is that said multimedia hub is formed schematic block diagram;
Fig. 3 is that said host groups becomes to form schematic block diagram;
Fig. 4 is that said secondary machine is formed schematic block diagram.
Embodiment
Below will combine accompanying drawing and embodiment that the present invention is explained in further detail for the ease of it will be appreciated by those skilled in the art that.
Shown in Fig. 1-3, disclosed multimedia system comprises a multimedia hub, a broadcast main frame, and the secondary machine of a plurality of broadcasts, multimedia hub is play the interconnected communication of secondary machine employing wireless telecommunications with broadcast main frame and each, does not need cable or optical cable.
Multimedia hub comprises the interface of central processing unit and connected digital signal processor, storer, connection USB flash disk, SD card as a fat server, and this digital signal processor connects a plurality of simulation radio reception receivers and digit broadcasting receiver.A plurality of simulation radio reception receivers and digit broadcasting receiver are equipped with antenna, can receive the analogue audio frequency broadcast singal and the digital audio broadcasting signal of different frequency simultaneously.The simulation radio reception signal that receives changes into the digital stream medium and supplies the wireless program request of each player; Digit broadcasting receiver can directly be stored audio-video document, supplies each player visit program request.Wherein storer can comprise random access memory (RAM), ROM (read-only memory) (ROM), hard disk, flash memory etc.In order to play the transmission of secondary machine communication realization signal with broadcast main frame and each, multimedia hub also is provided with an independently wireless transceiver specially, and this wireless transceiver is connected with central processing unit.
The general main frame of playing is arranged on console, and operator seat is neighbouring to make things convenient for operator seat control.Play main frame band display screen and touch-screen, specifically also comprise central processing unit and the digital signal processor, storer, power amplifier and the wireless receiver that are connected with central processing unit, power amplifier is connected with digital signal processor.This plays main frame through wireless receiver and multimedia hub communication; Obtain media content (broadcasting and audio frequency and video) from multimedia hub; The media content that obtains after digital signal processor, power amplifier are handled, offers the user through loudspeaker output successively.
The secondary machine of a plurality of broadcasts can be separately positioned on front-row seats position of back or other position; Supply back row or other passenger operation; Play secondary machine and also all have display screen and touch-screen, specifically also comprise main control unit and connected earphone driver element, storer, wireless transceiver.Each plays all independent and multimedia hub communications through the self radio transceiver of secondary machine; Obtain independently media content from multimedia hub; Via earphone drive unit drives earphone media content is offered the user, avoid the sound of playing the main frame broadcast is obscured.The main control unit of playing secondary machine can adopt central processing unit or directly adopt digital signal processor all can.
During concrete the realization, simulation radio reception receiver is just simulated the radio reception tuner, can adopt the receiver in existing amplitude modulationfrequency modulation radio station, among the present invention, the multimedia hub setting "
A plurality of" simulation radio reception tuner, each can receive different radio station, passes through the digital signal processor digitized processing after the wireless transceiver of multimedia hub is launched again.Multimedia hub can send the radio station of local reception scope earlier by frequency (or title) tabulation; Different player (no matter major-minor) selects to want the program of radio station listened according to frequency of radio station (or title) tabulation; Select the back to send signal and give multimedia hub, multimedia hub receives different radio station according to a simulation radio reception tuner that demand control is different.
For example; When the client terminal playing main frame selects to listen FM98.8; And the secondary machine 1 of client terminal playing wants to listen the FM103.6 radio station; The central processing unit of multimedia hub receives that instruction back arrangement simulation radio reception tuner 1 receives the FM98.8 radio station; Simulation radio reception tuner 2 receives the FM103.6 radio station, the radio station voice signal of reception by digital signal processor convert to the digital stream medium through wireless transceiver with play main frame, play secondary machine 1 point-to-point transmission, play main frame and play secondary machine 1 and receive that the Streaming Media signal released by the media player that carries again.Media player is a software, can be " the Windows Media Player " of Microsoft, also can be " Realplayer ", " QuickTime Player " or the like.Play the sound of main frame and sounded by the loudspeaker in the power amplifier driving cars that carries, secondary machine is then listened to earphone.Want to watch video if play secondary machine 2; Multimedia hub can be tabulated the video that has hard disk, flash memory, USB flash disk and SD card, and retrieval is provided, play the secondary machine 2 selected video files that will see after; Carry out point-to-point transmission by wireless transceiver; Play secondary machine 2 and receive after the data by the player plays that carries, the display display image, earphone is listened to sound.Wireless P-2-P technology can be " WiFi ", but is not limited to " WiFi ".
The random access memory that each central processing unit is connected with digital signal processor, ROM (read-only memory) and flash memory can be external devices, also can be integrated in the chip the inside.
Above-mentioned amplitude modulationfrequency modulation active antenna (generally using active antenna now) can be installed in roof with the satnav antenna; Like the shark fins antenna; The amplitude modulationfrequency modulation antenna also can be embedded in front windshield or the rear seat windscreen; Form is not limit, and the wireless transceiver antenna then is contained in the machine, built-in form in the employing machine.Because these several antenna frequency ranges are different, the interference between mutually can be ignored.The public antenna of a plurality of simulation radio reception devices is also passable.Wireless transceiver has independently IP separately, just as a small-sized LAN, presses the protocol of wireless local area network communication, does not need to stipulate in addition the communication order.The placement-and-routing of hardware designs carries out according to relevant EMC rule and signal integrity principle, uses multilayer circuit board; Simulation radio reception device will be simulated ground and digitally will separate away from the digital signal part, and analog power needs independently-powered, and several simulation radio reception devices are preferably made the module of a shielding, to stop electromagnetic wave at random in the machine.Feeling in the past to be big problem all has way to solve now.
The functional module that the present invention does not specifically introduce all can adopt functional module ripe in the prior art, repeats no more at this.
The preferred version that the foregoing description is realized for the present invention; And indefiniteness is exhaustive, and the present invention can also have other variations under same idea, need to prove; Conceive under the prerequisite not breaking away from the present invention, any conspicuous replacement and subtle change are all within protection scope of the present invention.
Claims (8)
1. a vehicle multimedia system is characterized in that, comprising:
One multimedia hub, it has server capability, the digital signal processor, the storer that have central processing unit and be connected with central processing unit, this digital signal processor connects a plurality of simulation radio reception receivers and digit broadcasting receiver;
One plays main frame, and the digital signal processor, the storer that have central processing unit and be connected with central processing unit also comprise the power amplifier that is connected with digital signal processor; Said broadcast main frame and multimedia hub communication are obtained media content from multimedia hub, and this media content offers the user through loudspeaker output successively after digital signal processor, power amplifier are handled;
The secondary machine of a plurality of broadcasts; Comprise main control unit and connected earphone driver element, storer; Each plays all independent and multimedia hub communication of secondary machine, obtains independently media content from multimedia hub, via earphone drive unit drives earphone media content is offered the user.
2. vehicle multimedia system according to claim 1; It is characterized in that: in the secondary machine of said multimedia hub and broadcast main frame and a plurality of broadcast wireless transceiver is set all, multimedia hub is connected the realization communication through wireless signal respectively with broadcast main frame and the secondary machine of a plurality of broadcast.
3. vehicle multimedia system according to claim 2; Itself and be characterised in that: said multimedia hub adopts the WiFi module with the wireless transceiver of playing main frame and play in the secondary machine, and multimedia hub is realized point-to-point communication with the WiFi module of playing main frame and play in the secondary machine.
4. vehicle multimedia system according to claim 3 is characterized in that: said broadcast main frame is located near the operator seat, is realized selecting the broadcasting and the audio frequency and video at play multimedia center by operator seat control; The secondary machine of said broadcast is arranged at the front-row seats backrest, supplies back row passenger to select the broadcasting and the audio frequency and video at play multimedia center.
5. vehicle multimedia system according to claim 4 is characterized in that: said broadcast main frame also is provided with satnav receiver and omniselector, and the two all interior with playing main frame central processing unit is connected.
6. vehicle multimedia system according to claim 5 is characterized in that: said broadcast main frame is equipped with display with the secondary machine of broadcast.
7. vehicle multimedia system according to claim 6 is characterized in that: said broadcast main frame is equipped with touch-screen with the secondary machine of broadcast.
8. vehicle multimedia system according to claim 7 is characterized in that: said multimedia hub also be provided with its in the central processing unit USB flash disk and the SD card that are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102975445A CN102419999A (en) | 2011-09-30 | 2011-09-30 | Multi-media system of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102975445A CN102419999A (en) | 2011-09-30 | 2011-09-30 | Multi-media system of automobile |
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| Publication Number | Publication Date |
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| CN102419999A true CN102419999A (en) | 2012-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102975445A Pending CN102419999A (en) | 2011-09-30 | 2011-09-30 | Multi-media system of automobile |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739807A (en) * | 2012-07-24 | 2012-10-17 | 栾蛟 | User service system |
| CN105047211A (en) * | 2015-06-25 | 2015-11-11 | 深圳市元征科技股份有限公司 | Vehicle audio playing method and vehicle mounted terminal |
| CN106128490A (en) * | 2016-07-24 | 2016-11-16 | 安徽机电职业技术学院 | A kind of new-energy automobile car energy-saving sound play device |
| CN112040288A (en) * | 2020-09-04 | 2020-12-04 | 华人运通(上海)云计算科技有限公司 | Multimedia system |
| CN113079388A (en) * | 2021-03-22 | 2021-07-06 | 浙江合众新能源汽车有限公司 | Playing method and playing system for vehicle-mounted multimedia content |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008026450A (en) * | 2006-07-19 | 2008-02-07 | Alpine Electronics Inc | Display processing apparatus |
| CN101267536A (en) * | 2007-03-15 | 2008-09-17 | 微捷科技股份有限公司 | Video and audio independent playing and share system and its method |
| CN201716989U (en) * | 2010-07-23 | 2011-01-19 | 广东好帮手电子科技股份有限公司 | Vehicle mounted multi-media three-screen independent play system |
| CN201824972U (en) * | 2010-09-28 | 2011-05-11 | 公信电子股份有限公司 | Vehicle-mounted network combined multimedia entertainment control system |
-
2011
- 2011-09-30 CN CN2011102975445A patent/CN102419999A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008026450A (en) * | 2006-07-19 | 2008-02-07 | Alpine Electronics Inc | Display processing apparatus |
| CN101267536A (en) * | 2007-03-15 | 2008-09-17 | 微捷科技股份有限公司 | Video and audio independent playing and share system and its method |
| CN201716989U (en) * | 2010-07-23 | 2011-01-19 | 广东好帮手电子科技股份有限公司 | Vehicle mounted multi-media three-screen independent play system |
| CN201824972U (en) * | 2010-09-28 | 2011-05-11 | 公信电子股份有限公司 | Vehicle-mounted network combined multimedia entertainment control system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739807A (en) * | 2012-07-24 | 2012-10-17 | 栾蛟 | User service system |
| CN105047211A (en) * | 2015-06-25 | 2015-11-11 | 深圳市元征科技股份有限公司 | Vehicle audio playing method and vehicle mounted terminal |
| CN106128490A (en) * | 2016-07-24 | 2016-11-16 | 安徽机电职业技术学院 | A kind of new-energy automobile car energy-saving sound play device |
| CN112040288A (en) * | 2020-09-04 | 2020-12-04 | 华人运通(上海)云计算科技有限公司 | Multimedia system |
| CN112040288B (en) * | 2020-09-04 | 2022-07-12 | 华人运通(上海)云计算科技有限公司 | Multimedia system |
| CN113079388A (en) * | 2021-03-22 | 2021-07-06 | 浙江合众新能源汽车有限公司 | Playing method and playing system for vehicle-mounted multimedia content |
| CN113079388B (en) * | 2021-03-22 | 2023-02-03 | 浙江合众新能源汽车有限公司 | Playing method and playing system for vehicle-mounted multimedia content |
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Application publication date: 20120418 |