CN1716418A - Vehicle carried video and audio playing device and method - Google Patents
Vehicle carried video and audio playing device and method Download PDFInfo
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- CN1716418A CN1716418A CN 200410062624 CN200410062624A CN1716418A CN 1716418 A CN1716418 A CN 1716418A CN 200410062624 CN200410062624 CN 200410062624 CN 200410062624 A CN200410062624 A CN 200410062624A CN 1716418 A CN1716418 A CN 1716418A
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Abstract
The vehicular video and audio playing device includes CPU and memory unit, at least two control units, at least two data decoding units and at least two receiving units. The memory unit is for storing video and audio data; the CPU is connected to the memory units, the control units and the data decoding units; the control units are for receiving the user's control command; the CPU time division treats the control command and cooperates the operation of other units; the data decoding units are connected to the receiving units to analyze the data from the CPU and drive corresponding receiving unit. The present invention also discloses the vehicular video and audio playing method.
Description
Technical field
The present invention relates to video-audio data transmission and treatment technology, especially relate to a kind of vehicle carried video and audio playing device and method.
Background technology
Along with society and development of science and technology, people's quality of the life promotes day by day, the requirement of material life also is improved relatively, as the popularity rate of present vehicle every year all in soaring.When people select vehicle, except requiring the comfortable safety driving, also require relevant device such as vehicle carried video broadcast can bring high-quality enjoyment.
At present, the program source of vehicle carried video playback equipment generally adopts CD, tape, radio etc.As, a kind of car video and audio playing device of prior art adopts VCD or DVD etc., and its CD of need arranging in pairs or groups is chosen film magazine, when work, chooses the discs that desire is play in its inner several pieces discs, plays and specifies the chip select selected songs.But its defective is conspicuous: CD is chosen tens of the CD agreements that contracts a film or TV play to an actor or actress that can adorn in the film magazine, expects that only the discs that will slices more renew just feels trouble; If VCD or DVD, slice, thin piece will two discs or even more than two, also be quite limited so its CD is chosen the film number that film magazine can put.
Along with modern information technology development, the music of MP3 data layout is just popularized rapidly in daily life.But owing to can only make in automobile audio, to be difficult to increase the MP3 player by wired mode down-load music.And, also greatly reduced people's use enthusiasm because common MP3 player can only be stored the first song of 8-16.
Along with the development of data storage technology, can utilize the hard disk of mass memory to store several thousand first songs at present.A kind of car video and audio playing device of prior art can see through computing machine or CATV (cable television) is downloaded a large amount of music (MP3, CD), TV programme, films such as VCD, DVD in advance, be stored in the hard disk of car video and audio playing device, again audio/video interface equipment collocation in this car video and audio playing device and the car is used, thereby saved the worry of changing dish.
But, described prior art still has weak point: because the car video and audio playing device of prior art need be used with audio/video interface equipment collocation in the car, and the development of existing car audio system product rests on the common stage of appreciating same program of many people in the car always, that is to say: audio/video interface equipment does not provide a plurality of actuation means in the car, generally can only be controlled by the driver and conductor, the passenger in the car can only many people listen to same program passively; And the car video and audio playing device of prior art can not be handled the operational order that is sent simultaneously by many people, can't realize that many people arbitrarily play the program of oneself liking according to the personal like simultaneously, can not satisfy different passengers' demand simultaneously.
Secondly,, also might disturb driver's normal driving, cause potential safety hazard because the car video and audio playing device of prior art adopts the common mode of appreciating same program of many people.
Summary of the invention
The technical matters that the present invention solves is to provide a kind of vehicle carried video and audio playing device and method that can realize multiplex's music.
For this reason, the technical scheme of technical solution problem of the present invention is: a kind of vehicle carried video and audio playing device is provided, comprises central processing unit and storage unit, described storage unit is used to store video-audio data; Comprise that also controlling unit, at least two data decoding units and at least two at least two listens to the unit; Described central processing unit connects storage unit, controls unit and data decode unit; Describedly control the operational order that the unit is used to receive the user; Described central processing unit is used for the instruction of time-division processing aforementioned operation, coordinates the work of other unit; Described data decode unit connects listens to the unit, is used to resolve the data of central processing unit transmission and drives the corresponding unit of listening to.
Preferably, described central processing unit comprises the operational order resolution unit that is used to resolve described operational order, is used to handle the storage control unit that corresponds respectively at least two playlist maintenance units of controlling the playlist of unit, is used to judge the time-division processing control module of controlling unit priority and is used for realizing according to aforementioned playout tabulation and priority data read and transmission.
Preferably, described central processing unit adopts wireless transmission protocol and data decode unit to carry out data transmission.
Preferably, described wireless transmission protocol comprises bluetooth, UWB, Zigbee, the infrared and/or HomeRF of HiperLAN, IrDA.
Preferably, described controlling adopts wired mode or wireless mode to carry out data transmission between unit and the central processing unit.
Preferably, described storage unit adopts micro harddisk, magnetic storage medium, semiconductor storage medium and/or optical storage media.
Preferably, described data decode unit comprises data buffer and digital audio decoding device.
Preferably, the described unit of controlling comprises data input cell and information display unit.
The present invention also provides a kind of vehicle carried video player method, is applied to aforementioned vehicle carried video and audio playing device, comprises step:
1) the described unit of controlling receives from user's operational order and is sent to central processing unit;
2) described central processing unit time-division processing aforementioned operation instruction is read video-audio data and is sent to corresponding data decode unit from storage unit;
3) the aforementioned video-audio data of described data decode unit resolves also drives the corresponding unit of listening to.
Preferably, described step 2) specifically comprise: the operational order resolution unit is resolved from the operational order of controlling the unit; The playlist maintenance unit is handled corresponding to the aforementioned playlist of controlling the unit according to operational order; The time-division processing control module is judged the priority of respectively controlling the unit; Storage control unit is realized reading and transmitting of data according to aforementioned playout tabulation and priority.。
With respect to prior art, the invention has the beneficial effects as follows: at first, control unit, data parsing unit and listen to the unit because the present invention possesses at least two of being connected with central processing unit; The operational order of unit can time-division processing be controlled in described central processing from difference, and the corresponding data parsing unit of control carries out data decode, drive the corresponding cell operation of listening to, therefore can realize vehicle-mounted multiplex's music, reach the purpose that different passengers listens to different programs, do not disturb mutually.Secondly, owing to realize vehicle-mounted multiplex's music, therefore can not disturb driver's normal driving, thereby eliminate safe hidden trouble.
Description of drawings
Fig. 1 is the structured flowchart of vehicle carried video and audio playing device of the present invention;
Fig. 2 is the structured flowchart of vehicle carried video and audio playing device one embodiment of the present invention;
Fig. 3 is the theory diagram of central processing unit shown in Figure 2;
Fig. 4 is the process flow diagram of vehicle carried video player method of the present invention;
Fig. 5 is the schematic flow sheet of time-division processing shown in Figure 4.
Embodiment
The invention provides a kind of vehicle carried video and audio playing device and method, can time-division processing from the operational order of different passengers in the car, play independently stereophonic program (as song or radio station etc.) of multichannel, everyone can independently put the favorite program of selecting oneself according to the hobby of oneself in the car.Thereby have only at vehicle carried video and audio playing device under one the situation, each one program is different in the car, satisfies the different demand of passenger, can realize multiplex's music under the hardware resource of minimum.
Seeing also Fig. 1, is the structured flowchart of vehicle carried video and audio playing device of the present invention.
Described vehicle carried video and audio playing device comprise central processing unit 110, storage unit 120, at least two control unit 130, at least two data decoding units 140 and at least two and listen to unit 150.Wherein, described central processing unit 110 is core components of vehicle-mounted audio/video device, connects storage unit 120, controls unit 130 and data decode unit 140, and the work of other unit is coordinated in the transmission and the processing of control data stream; Described data decode unit 140 connects the corresponding unit 150 of listening to, and with control unit 130 and form relation one to one.
Be appreciated that vehicle carried video and audio playing device also comprises power supply unit, be used for drawing working power, perhaps adopt self-powered from automobile circuit.
Described storage unit 120 is used to store video-audio data, can adopt micro harddisk, magnetic storage medium, semiconductor storage medium and/or optical storage media; For semiconductor storage medium, comprise FlashMemory, FRAM, MRAM, DRAM, SDRAM, EEPROM, SRAM, EPROM and/or Millipede etc.Wherein, preferably adopt micro harddisk, the micro harddisk of mass memory can be stored the song of nearly thousand head usually.
Music data for storage preferably adopts MP3 format, certainly, also can adopt extended formattings such as WMA, Realplay.
Described storage unit 120 is connected to central processing unit 110 by data bus (can certainly adopt other connected modes, this does not give unnecessary details), and the program source of vehicle carried video and audio playing device is provided.
Describedly control the operational order that unit 130 is used to receive the user, can adopt various forms of data input cell such as keyboard, control panel, switch (figure does not show).
In addition, for contents such as further displays program information, control informations, can also have information display unit (figure does not show), as LCD display, LED display or the like.Described user's operational order generally includes control actions such as the program chosen, volume adjusting, F.F., rewind down.
Usually, described controlling on the backrest that unit 130 can be installed in front seat in the car.Certainly, also can distribute, be plugged on by the passenger in the access port of seat by the steward.
Described central processing unit 110 is used for time-division processing from the different operational orders of controlling unit 130.If passenger or steward click a first MP3 song by controlling unit 130, then central processing unit 110 reads video-audio data from storage unit 120 fast, set up and to control unit 130 corresponding playlists, then video-audio data is sent to this and controls corresponding data decode unit 140, unit 130 with this.Same, if other passengers control unit 130 by another and click a first MP3 song, then central processing unit 110 reads video-audio data from storage unit 120 fast, set up and to control unit 130 corresponding playlists, then video-audio data is sent to this and controls corresponding data decode unit 140, unit 130 with this.If this moment, last passenger clicked the second first song by controlling unit 130, then central processing unit 110 removes reading cells 120 again, and the update playing tabulation.Therefore, described central processing unit 110 is safeguarded a plurality of playlists, and judges the priority of respectively controlling unit 130, handles accordingly, thereby realizes vehicle-mounted multiplex's music, makes numerous different passengers put different programs according to the hobby point.
Therefore, be appreciated that described time-division processing is meant to have imported song at first if any controls unit 130 that priority is the highest, central processing unit 110 can be handled this first song at first; Central processing unit 110 is arranged a plurality of first first songs of controlling unit 130, sequential processes according to time order and function then; Central then 110 processors can judge that the song which controls unit 130 correspondences plays soon, and at this moment, song plays soon, and to control unit 130 priority the highest.
Described data decode unit 140 is used to resolve the video-audio data that is sent by central processing unit 110, after decoding sound signal, drives the corresponding unit 150 of listening to.Described driving is meant the weak audio signal of amplification data decoding unit 140 outputs, and utilizes enough output currents and voltage to drive and listen to unit 150.
Described central processing unit 110 can adopt data transmission that wireless transmission protocol will read from storage unit 120 to data decode unit 140.Described wireless transmission protocol comprises bluetooth, UWB, Zigbee, the infrared and/or HomeRF of HiperLAN, IrDA.
The described unit 150 of listening to can adopt earphone, as devices such as headphones, thereby avoids interference between the different passengers, can also avoid the driver is caused interference, thereby eliminate safe hidden trouble.
Seeing also Fig. 2, is an embodiment of vehicle carried video and audio playing device of the present invention.
In the present embodiment, described storage unit 120 adopts micro harddisk storage data, as the data source of vehicle carried video and audio playing device.Micro harddisk has the fast characteristics of read or write speed, is connected to central processing unit 110 by data bus.
The described unit 130 of controlling has relation one to one with data decode unit 140.
Described data decode unit 140 comprises data buffer (Buffer) 141 and digital audio decoding device 142; Described data buffer 141 is used for the data that buffer memory is transmitted by central processing unit 110, and it comprises elements such as DRAM, deposits the data (data that comprise in progress song and the song that is about to play) of one to two first song usually; Described digital audio decoding device 142 can be digital audio decoding chips (CODEC) such as MP3, WMA, is sent to after the data decode that is used for data buffer 141 is deposited and listens to unit 150.
The described unit 150 of listening to adopts headphone.
During work, operational order is imported by the different unit 130 (1,2,3,4) of controlling respectively, and then central processing unit 110 is set up playlist 1,2,3,4 according to play instruction of each being controlled unit 130 inputs; One of them controls unit 130 corresponding playlists, puts into different RAM districts.In order to realize controlling the correspondence of unit 130 and playlist, each playlist all has a page marker, or start address and end address, and central processing unit 110 different start address and the end addresses of definition earlier is to belong to which playlist.
According to the difference of priority, central processing unit 110 judges to read which first song data earlier, is sent in the corresponding data buffer 141.
So-called priority is to guarantee that preferentially each data decode unit 140 all has under the prerequisite of playback of songs, preferentially read the extremely corresponding data buffer 141 of song in the current playlist that finishes playing at first, guaranteeing to greatest extent all has data in each data buffer 141.
See also Fig. 3, described central processing unit 110 comprises the operational order resolution unit 111 that is used to resolve described operational order, be used to handle the storage control unit 114 that corresponds respectively at least two playlist maintenance units 112 of controlling the playlist of unit, is used to judge the time-division processing control module 113 of controlling unit priority and is used for realizing according to aforementioned playout tabulation and priority data read and transmission.
See also Fig. 4, vehicle carried video player method of the present invention can be applied to aforementioned vehicle carried video and audio playing device.
At first, the described unit of controlling receives from user's operational order and is sent to central processing unit;
Subsequently, described central processing unit time-division processing aforementioned operation instruction is read video-audio data and is sent to corresponding data decode unit from storage unit;
Then, the aforementioned video-audio data of described data decode unit resolves also drives the corresponding unit of listening to.
Seeing also Fig. 5, is the schematic flow sheet of time-division processing shown in Figure 4.
At first, the operational order resolution unit is resolved from the operational order of controlling the unit; The playlist maintenance unit is handled corresponding to the aforementioned playlist of controlling the unit according to operational order; The time-division processing control module is judged the priority of respectively controlling the unit; Storage control unit is realized reading of data according to aforementioned playout tabulation and priority, and is sent to corresponding data decode unit.
Wherein, described operational order generally includes control actions such as the program chosen, volume adjusting, F.F., rewind down.Can be sent to central processing unit from controlling the unit by wired or wireless mode.Certainly, can also relevant information be presented at by wired or wireless mode and control the unit, with for reference.That is to say that controlling the unit provides user and central processing unit to carry out mutual man-machine interface.
Described playlist with control the unit and have relation one to one.
Described central processing unit adopts data transmission that wireless transmission protocol will read from storage unit to the data decode unit.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1, a kind of vehicle carried video and audio playing device comprises central processing unit and storage unit, and described storage unit is used to store video-audio data; It is characterized in that: comprise that also controlling unit, at least two data decoding units and at least two at least two listens to the unit; Described central processing unit connects storage unit, controls unit and data decode unit; Describedly control the operational order that the unit is used to receive the user; Described central processing unit is used for the instruction of time-division processing aforementioned operation, coordinates the work of other unit; Described data decode unit connects listens to the unit, is used to resolve the data of central processing unit transmission and drives the corresponding unit of listening to.
2, vehicle carried video and audio playing device according to claim 1 is characterized in that: described central processing unit comprises the operational order resolution unit that is used to resolve described operational order, be used to handle the storage control unit that corresponds respectively at least two playlist maintenance units of controlling the playlist of unit, is used to judge the time-division processing control module of controlling unit priority and is used for realizing according to aforementioned playout tabulation and priority data read and transmission.
3, vehicle carried video and audio playing device according to claim 1 is characterized in that: described central processing unit adopts wireless transmission protocol and data decode unit to carry out data transmission.
4, vehicle carried video and audio playing device according to claim 3 is characterized in that: described wireless transmission protocol comprises bluetooth, UWB, Zigbee, the infrared and/or HomeRF of HiperLAN, IrDA.
5, vehicle carried video and audio playing device according to claim 1 is characterized in that: described controlling adopts wired mode or wireless mode to carry out data transmission between unit and the central processing unit.
6, vehicle carried video and audio playing device according to claim 1 is characterized in that: described storage unit adopts micro harddisk, magnetic storage medium, semiconductor storage medium and/or optical storage media.
7, vehicle carried video and audio playing device according to claim 1 is characterized in that: described data decode unit comprises data buffer and digital audio decoding device.
8, vehicle carried video and audio playing device according to claim 1 is characterized in that: the described unit of controlling comprises data input cell and information display unit.
9, a kind of vehicle carried video player method is applied to aforementioned vehicle carried video and audio playing device, it is characterized in that, comprises step:
1) the described unit of controlling receives from user's operational order and is sent to central processing unit;
2) described central processing unit time-division processing aforementioned operation instruction is read video-audio data and is sent to corresponding data decode unit from storage unit;
3) the aforementioned video-audio data of described data decode unit resolves also drives the corresponding unit of listening to.
10, vehicle carried video player method according to claim 9 is characterized in that, described step 2) specifically comprise: the operational order resolution unit is resolved from the operational order of controlling the unit; The playlist maintenance unit is handled corresponding to the aforementioned playlist of controlling the unit according to operational order; The time-division processing control module is judged the priority of respectively controlling the unit; Storage control unit is realized reading and transmitting of data according to aforementioned playout tabulation and priority.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100626242A CN100501855C (en) | 2004-06-30 | 2004-06-30 | Vehicle carried video and audio playing device and method |
| HK06107524.4A HK1087519A1 (en) | 2004-06-30 | 2006-07-04 | Vehicle carried video and audio playing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100626242A CN100501855C (en) | 2004-06-30 | 2004-06-30 | Vehicle carried video and audio playing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1716418A true CN1716418A (en) | 2006-01-04 |
| CN100501855C CN100501855C (en) | 2009-06-17 |
Family
ID=35822167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100626242A Active CN100501855C (en) | 2004-06-30 | 2004-06-30 | Vehicle carried video and audio playing device and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100501855C (en) |
| HK (1) | HK1087519A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102209089A (en) * | 2010-03-29 | 2011-10-05 | 上海博泰悦臻电子设备制造有限公司 | Methods and devices for providing and obtaining vehicular music and vehicular music transfer system |
| CN103260080A (en) * | 2013-04-16 | 2013-08-21 | 欧科佳（上海）汽车电子设备有限公司 | Method for achieving vehicle-mounted entertainment video information on demand by using intelligent mobile communication terminal |
| CN103414983A (en) * | 2013-08-09 | 2013-11-27 | 广州番禺巨大汽车音响设备有限公司 | Method and system for achieving multi-position transmission in loudspeaker based on Bluetooth communication |
| CN109196573A (en) * | 2016-05-23 | 2019-01-11 | 印度摩托车国际有限公司 | Display system and method for vehicle |
-
2004
- 2004-06-30 CN CNB2004100626242A patent/CN100501855C/en active Active
-
2006
- 2006-07-04 HK HK06107524.4A patent/HK1087519A1/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102209089A (en) * | 2010-03-29 | 2011-10-05 | 上海博泰悦臻电子设备制造有限公司 | Methods and devices for providing and obtaining vehicular music and vehicular music transfer system |
| CN103260080A (en) * | 2013-04-16 | 2013-08-21 | 欧科佳（上海）汽车电子设备有限公司 | Method for achieving vehicle-mounted entertainment video information on demand by using intelligent mobile communication terminal |
| CN103414983A (en) * | 2013-08-09 | 2013-11-27 | 广州番禺巨大汽车音响设备有限公司 | Method and system for achieving multi-position transmission in loudspeaker based on Bluetooth communication |
| CN109196573A (en) * | 2016-05-23 | 2019-01-11 | 印度摩托车国际有限公司 | Display system and method for vehicle |
| US11400997B2 (en) | 2016-05-23 | 2022-08-02 | Indian Motorcycle International, LLC | Display systems and methods for a recreational vehicle |
| US11691688B2 (en) | 2016-05-23 | 2023-07-04 | Indian Motorcycle International, LLC | Display systems and methods for a recreational vehicle |
| US11919597B2 (en) | 2016-05-23 | 2024-03-05 | Indian Motorcycle International, LLC | Display systems and methods for a recreational vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100501855C (en) | 2009-06-17 |
| HK1087519A1 (en) | 2006-10-13 |
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