CN104915309B - USB device and onboard system - Google Patents
USB device and onboard system Download PDFInfo
- Publication number
- CN104915309B CN104915309B CN201510368629.6A CN201510368629A CN104915309B CN 104915309 B CN104915309 B CN 104915309B CN 201510368629 A CN201510368629 A CN 201510368629A CN 104915309 B CN104915309 B CN 104915309B
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- usb
- data
- car
- mcu
- mounted terminal
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/38—Universal adapter
- G06F2213/3814—Wireless link with a computer system port
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention is applied to device data interfacing field, there is provided a kind of USB device and onboard system, the USB device include：USB flash disk main body, the front end of the USB flash disk main body are provided with USB interface, and the USB flash disk main body includes：The MCU with USB OTG functions being connected with the USB interface, and with the MCU with the USB OTG functions wireless communication modules being connected and memory module.By the present invention, can effectively solve existing mobile unit during playing audio-video data, if necessary to being updated the content in USB device, then need the USB device being switched to data-transmission mode, the problem of the pause for causing voice data to play.
Description
Technical field
The invention belongs to device data interfacing field, more particularly to USB device and onboard system.
Background technology
With expanding economy, the progress of society, automobile has become the main vehicles of people.At the same time, vapour
Car starts to be increasingly becoming popular consumer goods, and the consumer group of automobile is constantly expanding, and requirement of the consumer to automobile is also increasingly
It is high.Therefore, the quick hair of the vehicle information terminal equipment related to automobile (also referred to as mobile unit) is promoted to a certain extent
Exhibition.
Existing mobile unit is provided a user navigation, transport information, answered based on mobile communication and Internet technology
The function such as anxious.Moreover it also provides various multimedia services, such as the reception of broadcast TV program, film, music etc. are local
Broadcasting of audio frequency and video etc..
Existing mobile unit is when playing local audio, video data, usually from the USB dresses being connected with the mobile unit
Middle reading audio, video data is put to play out.However, it is existing during mobile unit playing audio-video data, if desired
Content in USB device is updated, then needs the USB device being switched to data-transmission mode, causes voice data
The pause of broadcasting, influences Consumer's Experience.
The content of the invention
In consideration of it, the embodiment of the present invention provides a kind of USB device and onboard system, it is existing in mobile unit broadcasting to solve
During audio, video data, if necessary to be updated the content in USB device, then need to switch the USB device
To data-transmission mode, the problem of the pause for causing voice data to play.
In a first aspect, the embodiments of the invention provide a kind of USB device, including USB flash disk main body, the front end of the USB flash disk main body
Provided with USB interface, it is characterised in that the USB flash disk main body includes：
The MCU with USB OTG functions being connected with the USB interface,
And with the MCU with the USB OTG functions wireless communication modules being connected and memory module；
The MCU with USB OTG functions, for fictionalizing a memory space, when detecting that car-mounted terminal passes through institute
When stating USB interface and accessing the memory space, the data storage in the memory module is obtained, and by the storage number of acquisition
The car-mounted terminal is sent to according to by the USB interface；
The MCU with USB OTG functions, it is additionally operable to receive what mobile terminal was sent by the wireless communication module
Data write request, and data to be written is stored to the memory module.
Second aspect, the embodiments of the invention provide a kind of onboard system, the onboard system includes the USB device,
The car-mounted terminal being connected with the USB device；And
The mobile terminal to be communicated with the USB device.
Existing beneficial effect is the embodiment of the present invention compared with prior art：The embodiment of the present invention increases in USB device
Add wireless communication module and the MCU with USB OTG functions, pass through the MCU with USB OTG functions so that vehicle-mounted to set
The standby data that can be directly read in USB device.Meanwhile by the wireless communication module, facilitate user directly will be mobile whole
Data in end are transferred to the USB device by way of being wirelessly transferred.What it is due to car-mounted terminal access is USB device
The memory space that middle MCU is fictionalized, and mobile terminal data write-in is actual memory module, therefore mobile unit is being carried out
During digital independent, the write-in of mobile terminal data is not interfered with, is being broadcast so as to effectively solve existing mobile unit
During playback video data, if necessary to be updated the content in USB device, then need to cut the USB device
Data-transmission mode is changed to, the problem of the pause for causing voice data to play, Consumer's Experience is effectively improved, has stronger easy
With property and practicality.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the composition structure chart of USB device provided in an embodiment of the present invention；
Fig. 2 is the composition structure chart of onboard system provided in an embodiment of the present invention.
Embodiment
In describing below, in order to illustrate rather than in order to limit, it is proposed that such as tool of particular system structure, technology etc
Body details, understand the embodiment of the present invention to cut thoroughly.However, it will be clear to one skilled in the art that there is no these specific
The present invention can also be realized in the other embodiments of details.In other situations, omit to well-known system, device, electricity
Road and the detailed description of method, in case unnecessary details hinders description of the invention.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
Fig. 1 shows the composition structure of USB device provided in an embodiment of the present invention, for convenience of description, illustrate only with
Related part of the invention.
USB device 1 includes USB flash disk main body 11 and usb 12, and the usb 12 is placed in the front end of USB flash disk main body 11,
The usb 12 is used to connect terminal device, such as car-mounted terminal.
Include in the USB flash disk main body 11：
(the Microcontroller of micro-control unit 111 with USB OTG functions being connected with the usb 12
Unit, MCU)；The micro-control unit 111 with USB OTG functions can be USB OTG single-chip microcomputers, or with USB
The combination of the chip and single-chip microcomputer of OTG functions.
And with the MCU111 with the USB OTG functions wireless communication modules 112 being connected and memory module
113。
The wireless communication module 112 is connected with the MCU111 with USB OTG functions, available for realize USB fill
Put the communication between 1 and mobile terminal；
The memory module 113 is connected with the MCU111 with USB OTG functions, for realizing and USB flash disk identical
Function, including the function such as the reading and writing of data, storage.
In embodiments of the present invention, the MCU111 with USB OTG functions fictionalizes a memory space, and is detecting
When accessing the memory space by the usb 12 to car-mounted terminal, the storage number in the memory module 113 is obtained
According to the data storage of acquisition is sent into the car-mounted terminal by the usb 12.
Further, before detection car-mounted terminal accesses the memory space by the USB interface, the present invention is implemented
Example also includes：
The MCU111 with USB OTG functions, it is additionally operable to send out by the usb 12 receiving car-mounted terminal
During the device type inquiry instruction sent, to the information that the car-mounted terminal feedback device type is memory.
Further, the MCU111 with USB OTG functions, it is additionally operable to reception mobile terminal and passes through the channel radio
Believe the data write request that module 112 is sent, and data to be written is stored to the memory module 113.
Further, the MCU111 with USB OTG functions, it is additionally operable to close car-mounted terminal to the memory module
113 data write-in functions please in the data write-in for receiving mobile terminal and being sent by the wireless communication module 112
When asking, data write-in functions of the car-mounted terminal to the memory module 113 are closed.By such scheme, the shifting can be ensured
When dynamic terminal write in memory module 113 data by the wireless communication module 112, car-mounted terminal is merely able to read and stored
Data in module 113, it is unable to write data in memory module 113 so that the present invention realizes simply, and will not cause
File system logic is chaotic in memory module 113.
In addition, the MCU111 with USB OTG functions, can be also used for passing through the nothing receiving mobile terminal
During the data read request that line communication module 112 is sent, the data storage in the memory module 113 is obtained, and by acquisition
The data storage is sent to the mobile terminal by the wireless communication module 112.
Wherein, the wireless communication module 112 can send and receive the 2G signals of GMS standards, TD-SCDMA, WCDMA,
The 3G signals of CDMA2000 standards or/and WiFi signal etc..The memory module 113 is preferably TF card or SD card.
Optionally, the USB flash disk main body 11 can also include an electronic horn, and the electronic horn connects with the MCU111
Connect.The electronic horn is made up of language integrated package and power amplifier block and peripheral resistor-capacitor unit, sonic switch, loudspeaker, the electronics
Loudspeaker are used in the switch operating state of USB device 1 or mode of operation, send prompt tone, such as drop drop sound etc..
Optionally, reset switch is additionally provided with the USB flash disk main body 11, for vehicle-mounted U-disk to be recovered to Default Value, side
Just user resets after the password of wireless communication module is forgotten.
Fig. 2 shows the composition structure of onboard system provided in an embodiment of the present invention, for convenience of description, illustrate only with
Related part of the invention.
Onboard system includes the USB device 1 as described in Fig. 1 corresponds to embodiment, is connected with the USB device 1 vehicle-mounted
Terminal 2；And
The mobile terminal 3 to be communicated with the USB device 1.
Wherein, it is mobile phone, tablet personal computer or notebook computer that the mobile terminal 3, which includes but is not limited to,.
Illustrate said process below by an instantiation, when the USB device 1 is passed through the USB interface by user
After 12 are inserted into the car-mounted terminal 2, car-mounted terminal 2 is that the USB device 1 is powered, and is connected to USB OTG functions
MCU111, the type of inquiry connection equipment.Now the MCU111 with USB OTG functions replys what car-mounted terminal 2 currently connected
Device type is memory, and mobile unit 2 reads the song in the USB device 1 by the usb 12 and played out
(order and operated to the logic sector of disk storage that MCU111 inquires car-mounted terminal 2, are mapped directly in MCU111
Memory module 113.It should be noted that the memory space in the USB device that mobile unit 2 has access to, is by MCU111
OTG fictionalizes the memory space come, and the MCU111 is detecting that car-mounted terminal 2 accesses described deposit by the usb 12
When storing up space, the data that the memory storage module 113 of USB device 1 stores are obtained, and the data of acquisition are connect by the USB
Mouthfuls 12 are sent to the car-mounted terminal 2), i.e. car-mounted terminal<- usb protocol->USB OTG<- USB drivings->MCU<- SD agreements->
TF card；
During mobile unit 2 plays the song of USB device 1, if necessary to the song to the USB device 1 storage
It is updated, then the mobile terminal 3 can establish radio communication with the USB device 1 by wireless communication module 112 and be connected
(be preferably WIFI), the song prestored in mobile terminal 3 is passed through into the storage mould that is wirelessly transmitted in the USB device 1
In block 113 (preferably TF card).Advantage of this is that memory module 113 is operated simultaneously by MCU111 and car-mounted terminal 2, it is mobile
Terminal 3 directly carries out song renewal, i.e. mobile terminal by the wireless communication module 112 in USB device 1 to memory module 113
<- network storage protocol->WiFi<- WiFi drivings->MCU<- SD agreements->TF card, car-mounted terminal 2 will not be caused to being sung in TF card
The interruption that song is read, that is, the song in the broadcasting USB device 1 of car-mounted terminal 2 is not interfered with.
It should be noted that access of the car-mounted terminal 2 for any sector in USB device 1, will all be converted into TF card
The reading of data.Because USB interface uses usb protocol, TF card uses SD agreements, and protocol layer is different, but logical layer
All it is ReadSector.Therefore, mobile terminal 3 does not interfere with TF by reading of the wireless communication module 112 to data in TF card
The content of card；Mobile terminal 3, toward data are write in TF card, can cause the change of TF card content by wireless communication module 112, but
Because car-mounted terminal 2 is simply read to the content in USB device 1, file system logic entanglement will not be caused, therefore need to only move
After the completion of the dynamic data of terminal 3 write-in, send disk change order and re-powered to car-mounted terminal 2, or directly to USB device 1
.
Optionally, mobile terminal 3 directly can also send control instruction to the USB device 1, and the control instruction includes
Data are deleted, USB flash disk formats and mode of operation switches etc..
The embodiment of the present invention adds wireless communication module and the MCU with USB OTG functions in USB device, leads to
Cross the MCU with USB OTG functions so that mobile unit can directly read the data in USB device.Meanwhile by described
Wireless communication module, facilitate user that the data in mobile terminal are directly transferred into the USB by way of being wirelessly transferred and fill
Put.What is accessed due to the car-mounted terminal is MCU is fictionalized in USB device memory space, and mobile terminal data write-in
It is actual memory module, therefore mobile unit does not interfere with mobile terminal data during digital independent is carried out
Write-in, i.e., during mobile unit playing audio-video data, if necessary to be updated to the content in USB device, then
The broadcasting of current audio data need not be suspended, so as to effectively improve Consumer's Experience, there is stronger usability and practicality.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to foregoing reality
Example is applied the present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each
Technical scheme described in embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these are changed
Or replace, the essence of appropriate technical solution is departed from the spirit and model of each embodiment technical scheme of the embodiment of the present invention
Enclose.
Claims (8)
1. a kind of USB device, including USB flash disk main body, the front end of the USB flash disk main body is provided with USB interface, it is characterised in that the USB flash disk
Main body includes：
The MCU with USB OTG functions being connected with the USB interface,
And with the MCU with the USB OTG functions wireless communication modules being connected and memory module；
The MCU with USB OTG functions, for fictionalizing a memory space, when detecting that car-mounted terminal passes through the USB
When interface accesses the memory space, the data storage in the memory module is obtained, and the data storage of acquisition is led to
Cross the USB interface and be sent to the car-mounted terminal, so that car-mounted terminal does not interfere with during digital independent is carried out
The actual memory module of mobile terminal data write-in；
The MCU with USB OTG functions, it is additionally operable to receive the data that mobile terminal is sent by the wireless communication module
Write request, and data to be written is stored to the memory module；
The MCU with USB OTG functions, be additionally operable to close car-mounted terminal to the data write-in functions of the memory module or
Person closes car-mounted terminal to described when receiving the data write request that mobile terminal is sent by the wireless communication module
The data write-in functions of memory module.
2. USB device as claimed in claim 1, it is characterised in that the MCU with USB OTG functions, be additionally operable in institute
After the completion of stating data write-in, write to the car-mounted terminal feedback data and complete information, information is completed in the data write-in to be included
Disk modification information.
3. USB device as claimed in claim 1, it is characterised in that the MCU with USB OTG functions, be additionally operable to connecing
When receiving the data read request that mobile terminal is sent by the wireless communication module, the storage in the memory module is obtained
Data, and the data storage of acquisition is sent to the mobile terminal by the wireless communication module.
4. USB device as claimed in claim 1, it is characterised in that institute is accessed by the USB interface in detection car-mounted terminal
Before stating memory space,
The MCU with USB OTG functions, it is additionally operable in the equipment for receiving car-mounted terminal and being sent by the USB interface
During type inquiry instruction, to the information that the car-mounted terminal feedback device type is memory.
5. the USB device as described in any one of Claims 1-4, it is characterised in that the wireless communication module is WIFI moulds
Block.
6. the USB device as described in any one of Claims 1-4, it is characterised in that the memory module is TF card.
7. a kind of onboard system, it is characterised in that the onboard system includes the USB dresses as described in any one of claim 1 to 6
Put,
The car-mounted terminal being connected with the USB device；And
The mobile terminal to be communicated with the USB device.
8. onboard system as claimed in claim 7, it is characterised in that the mobile terminal is mobile phone, tablet personal computer or notes
This computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368629.6A CN104915309B (en) | 2015-06-29 | 2015-06-29 | USB device and onboard system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510368629.6A CN104915309B (en) | 2015-06-29 | 2015-06-29 | USB device and onboard system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104915309A CN104915309A (en) | 2015-09-16 |
| CN104915309B true CN104915309B (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510368629.6A Active CN104915309B (en) | 2015-06-29 | 2015-06-29 | USB device and onboard system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101630156B1 (en) * | 2014-09-25 | 2016-06-15 | 현대자동차주식회사 | interface device, Vehicle having the same and method for controlling the same |
| CN108777149A (en) * | 2018-05-18 | 2018-11-09 | 上海康斐信息技术有限公司 | A kind of vehicle-mounted storage device and vehicle mounted multimedia supplying system and method |
| CN112802502B (en) * | 2021-03-09 | 2022-04-08 | 湖南工学院 | Vehicle-mounted intelligent USB flash disk and audio content distribution method and system based on network service |
| CN113300859A (en) * | 2021-05-14 | 2021-08-24 | 深圳市绘王动漫科技有限公司 | Data forwarding apparatus and data forwarding method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203118472U (en) * | 2013-03-05 | 2013-08-07 | 黄芳涛 | Vehicle-mounted WIFI multimedia electronic equipment |
| CN204288808U (en) * | 2014-07-24 | 2015-04-22 | 西安多听网络科技有限公司 | A kind of automobile transmission storer |
| CN204066738U (en) * | 2014-08-06 | 2014-12-31 | 熊宝零 | Vehicle-mounted U-disk and onboard system |
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| CN104915309A (en) | 2015-09-16 |
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Effective date of registration: 20160520 Address after: 518000, Guangdong, Nanshan District hi tech Industrial Park, No. 1, No. 8 financial base, 5 floor, E, F, Shenzhen Applicant after: SHENZHEN DAMAI TECHNOLOGY CO., LTD. Address before: 518057, Guangdong, Nanshan District Province, Shenzhen Road, No. 8 financial services technology innovation base, 8 floor, A, B, C, D, E,, F1 Applicant before: Shenzhen jiangbolong Electronic Co., Ltd. |
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