CN207488982U - A kind of in-vehicle multi-media system EMMC storage organizations - Google Patents
A kind of in-vehicle multi-media system EMMC storage organizations Download PDFInfo
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- CN207488982U CN207488982U CN201721213722.0U CN201721213722U CN207488982U CN 207488982 U CN207488982 U CN 207488982U CN 201721213722 U CN201721213722 U CN 201721213722U CN 207488982 U CN207488982 U CN 207488982U
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Abstract
The utility model is related to in-vehicle multi-media system technical field of memory more particularly to a kind of in-vehicle multi-media system EMMC storage organizations, including cpu controller, USB interface and EMMC chips；The cpu controller is electrically connected with USB interface with the EMMC chips respectively；The cpu controller is used to handle navigation engine and playback of media files；The external USB flash disk equipment of USB interface connection；The EMMC chips are used to store audio-video document, navigation map file, APP application programs and operating system file.The goal of the invention of the utility model is to provide a kind of in-vehicle multi-media system EMMC storage organizations, it is solved using technical solution provided by the utility model since card slot is external, being easy to cause artificial damage and shrapnel oxidation leads to loose contact, while entire storage system complexity easily leads to the technical issues of system is unstable.
Description
Technical field
The utility model is related to in-vehicle multi-media system technical field of memory more particularly to a kind of in-vehicle multi-media systems
EMMC storage organizations.
Background technology
With the raising of people’s lives level, automobile popularity rate is also higher and higher, outside vehicle multimedia navigation system
If storing accessory becomes also more and more, such as：For the expansion card of navigation, for the media card of media play, used inside host
In the EMMC chips of storage APP application programs, the storage system inside entire host is made to become complicated, it is non-due to terminal user
Through often occurring after the problem of normal operating, SD card is related is on sale, the complexity of storage system can cause host to become very unstable, draw
Terminal client is played to complain.
As shown in Figure 1, wherein 1 is media card slot, the media SD card for storing audio-video document is placed；2 be map
Card slot places the map SD card for storing navigation map file；3 be navigation host；4 be for handling navigation engine and matchmaker
The cpu controller that body file plays；5 be the USB interface for connecting external USB flash disk equipment；6 be for storing APP application programs
EMMC chips；7 be the NAND FLASH chips for storing the files such as operating system.Since two SD card slots belong to outside
It puts, terminal user's abnormal operation, easily leads to artificial damage, while exposed outside plus SD card slot, contact flat spring is oxidizable, leads
Cause loose contact, while to easily lead to system unstable for entire storage system complexity.
Utility model content
The goal of the invention of the utility model is to provide a kind of in-vehicle multi-media system EMMC storage organizations, using this practicality
The technical solution of novel offer is solved since card slot is external, and being easy to cause artificial damage and shrapnel oxidation leads to contact not
It is good, while entire storage system complexity easily leads to the technical issues of system is unstable.
In order to solve the above-mentioned technical problem, the utility model uses following technical scheme：A kind of in-vehicle multi-media system
EMMC storage organizations, including cpu controller, USB interface and EMMC chips；The cpu controller and USB interface respectively with institute
State the electric connection of EMMC chips；The cpu controller is used to handle navigation engine and playback of media files；The USB interface connects
Connect external USB flash disk equipment；The EMMC chips are used to store audio-video document, navigation map file, APP application programs and operation system
System file.
Preferably, the EMMC chips include MMC interfaces, flash memory device and master controller；The audio and video text
Part, navigation map file, APP application programs and operating system file are stored in the flash memory.
Preferably, the flash memory includes depositing for storing the external file of audio-video document and navigation map file
Storage area, for the program storage area that stores APP application programs and for storing the NAND FLASH of operating system file storages
Area.
Preferably, the external file storage area is included for storing the media storage area of audio-video document and for storing
The map memory block of navigation map file.
Data file in expansion card, media card and NAND FLASH is all passed through the EMMC cores of monolithic by the utility model
Piece stores, and implements simple and effective, can effectively integrate the storage element of system, system peripheral devices is made to become simpler
Clean, complete machine stability is further promoted, while saves complete machine BOM costs, and machine risk is moved back after sale in reduction.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to this practicality
Attached drawing is briefly described needed in the description of new embodiment or the prior art.It should be evident that it is described below
In attached drawing be only the utility model part of the embodiment, for those of ordinary skill in the art, do not paying wound
Under the premise of the property made is laborious, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is existing in-vehicle multi-media system host storage inside schematic diagram；
Fig. 2 is the utility model embodiment in-vehicle multi-media system host storage inside schematic diagram.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained shall fall within the protection scope of the present invention.
In existing in-vehicle multi-media system storage organization, since its SD card slot belongs to external, terminal user's abnormal operation,
Easily lead to artificial damage；Exposed outside plus SD card slot simultaneously, contact flat spring is oxidizable, leads to loose contact, while entirely deposit
It is unstable that storage system complexity easily leads to system.
In order to solve the above-mentioned technical problem, Fig. 2 is referred to, the present embodiment provides a kind of in-vehicle multi-media system EMMC storages
Structure, including the cpu controller 20, USB interface 30 and EMMC chips 40 being set in navigation host 10, cpu controller 20
It is electrically connected respectively with EMMC chips 40 with USB interface 30.
Wherein cpu controller 20 is used to handle navigation engine and playback of media files；USB interface 30 connects external USB flash disk and sets
It is standby；EMMC chips 40 are used to store audio-video document, navigation map file, APP application programs and operating system file.Specifically
, EMMC chips 40 include MMC interfaces, flash memory device and master controller, audio-video document, navigation map file, APP
Application program and operating system file are stored in flash memory.
In order to ensure the normal operation of navigation host, in-vehicle multi-media system EMMC storage organizations provided in this embodiment,
The flash memory of its EMMC chip 40 is included for storing the media storage area 41 of audio-video document, for storing navigation map
The map memory block 42 of file, for the program storage area 43 that stores APP application programs and for storing operating system file
NAND FLASH memory blocks 44.Wherein media storage area 41 and map memory block 42 constitutes external file storage area, media
The navigation map file that the audio-video document and map memory block 42 that memory block 41 stores store is transmitted by USB interface 30
Media storage area 41 and map memory block 42 into EMMC chips 40.
Technical solution provided in this embodiment all passes through the data file in expansion card, media card and NAND FLASH
The EMMC chips of monolithic store, and implement simple and effective, can effectively integrate the storage element of system, make system peripherals device
Part becomes more succinct, and complete machine stability is further promoted, while saves complete machine BOM costs, and machine risk is moved back after sale in reduction.
Embodiments described above does not form the restriction to the technical solution protection domain.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical solution
Within enclosing.
Claims (4)
1. a kind of in-vehicle multi-media system EMMC storage organizations, it is characterised in that：Including cpu controller, USB interface and EMMC
Chip；The cpu controller is electrically connected with USB interface with the EMMC chips respectively；The cpu controller is led for handling
Boat engine and playback of media files；The external USB flash disk equipment of USB interface connection；The EMMC chips are literary for storing audio and video
Part, navigation map file, APP application programs and operating system file.
2. a kind of in-vehicle multi-media system EMMC storage organizations according to claim 1, it is characterised in that：The EMMC cores
Piece includes MMC interfaces, flash memory device and master controller；The audio-video document, navigation map file, APP application journeys
Sequence and operating system file are stored in the flash memory.
3. a kind of in-vehicle multi-media system EMMC storage organizations according to claim 2, it is characterised in that：The flash memory
Reservoir is included for storing the external file storage area of audio-video document and navigation map file, for storing APP application programs
Program storage area and NAND FLASH memory blocks for storing operating system file.
4. a kind of in-vehicle multi-media system EMMC storage organizations according to claim 3, it is characterised in that：The external text
Part memory block includes storing the media storage area of audio-video document and the map memory block for storing navigation map file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213722.0U CN207488982U (en) | 2017-09-20 | 2017-09-20 | A kind of in-vehicle multi-media system EMMC storage organizations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721213722.0U CN207488982U (en) | 2017-09-20 | 2017-09-20 | A kind of in-vehicle multi-media system EMMC storage organizations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207488982U true CN207488982U (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721213722.0U Active CN207488982U (en) | 2017-09-20 | 2017-09-20 | A kind of in-vehicle multi-media system EMMC storage organizations |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108874401A (en) * | 2018-03-28 | 2018-11-23 | 惠州市德赛西威汽车电子股份有限公司 | A kind of method and apparatus of EMMC means of storage bulk filling map datum |
-
2017
- 2017-09-20 CN CN201721213722.0U patent/CN207488982U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108874401A (en) * | 2018-03-28 | 2018-11-23 | 惠州市德赛西威汽车电子股份有限公司 | A kind of method and apparatus of EMMC means of storage bulk filling map datum |
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