CN104915309A - USB device and vehicle-mounted system - Google Patents

USB device and vehicle-mounted system Download PDF

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Publication number
CN104915309A
CN104915309A CN201510368629.6A CN201510368629A CN104915309A CN 104915309 A CN104915309 A CN 104915309A CN 201510368629 A CN201510368629 A CN 201510368629A CN 104915309 A CN104915309 A CN 104915309A
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China
Prior art keywords
usb
data
usb device
car
mcu
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CN201510368629.6A
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CN104915309B (en
Inventor
覃敏
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SHENZHEN DAMAI TECHNOLOGY CO., LTD.
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Shenzhen Netcom Electronics Co Ltd
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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 suitable for the technical field of equipment data interfaces, and provides a USB device and a vehicle-mounted system. The USB device comprises a USB flash disk main body, wherein a USB interface is arranged at the front end of the USB flash disk main body; the USB flash disk main body comprises an MCU (Microcontroller Unit), a wireless communication module and a memory module, wherein the MCU is connected with the USB interface and has a USB OTG function, and the wireless communication module and the memory module are connected with the MCU having the USB OTG function. Through the USB device and the vehicle-mounted system, disclosed by the present invention, the problem that when a conventional vehicle-mounted device plays audio and video data, if the content in the USB device needs to update, the USB device needs to be converted into a data transmission mode, so that the problem play of the audio data is stopped, can be effectively solved.

Description

USB device and onboard system
Technical field
The invention belongs to device data interfacing field, particularly relate to USB device and onboard system.
Background technology
Along with the progress of expanding economy, society, automobile has become the main vehicles of people.Meanwhile, automobile starts to become popular consumer goods gradually, and the consumer group of automobile is in continuous expansion, and the requirement of consumer to automobile is also more and more higher.Therefore, the fast development of the vehicle information terminal equipment (also claim mobile unit) relevant to automobile is facilitated to a certain extent.
Existing mobile unit, based on mobile communication and Internet technology, provides navigation, transport information, the function such as emergent to user.And, various multimedia service can also be provided, the reception of such as broadcast TV program, the broadcasting etc. of the local audio frequency and video such as film, music.
Existing mobile unit, when playing local audio, video data, is generally from the USB device be connected with described mobile unit, read audio, video data play.But, existing in the process of mobile unit playing audio-video data, if need to upgrade the content in USB device, then need described USB device to be switched to data-transmission mode, cause the time-out that voice data is play, affect Consumer's Experience.
Summary of the invention
Given this, the embodiment of the present invention provides a kind of USB device and onboard system, existing in the process of mobile unit playing audio-video data to solve, if need to upgrade the content in USB device, then need described USB device to be switched to data-transmission mode, the problem of the time-out causing voice data to be play.
First aspect, embodiments provides a kind of USB device, comprises USB flash disk main body, and the front end of described USB flash disk main body is provided with USB interface, it is characterized in that, described USB flash disk main body comprises:
The MCU with USB OTG function be connected with described USB interface,
And with the described wireless communication module that is connected with the MCU of USB OTG function and memory module;
The described MCU with USB OTG function, for fictionalizing a storage space, when detecting that car-mounted terminal accesses described storage space by described USB interface, obtain the storage data in described memory module, and the described storage data obtained are sent to described car-mounted terminal by described USB interface;
The data of write also for the data write request that mobile terminal receive is sent by described wireless communication module, and are stored to described memory module by the described MCU with USB OTG function.
Second aspect, embodiments provides a kind of onboard system, and described onboard system comprises described USB device,
The car-mounted terminal be connected with described USB device; And
The mobile terminal communicated with described USB device.
The beneficial effect that the embodiment of the present invention compared with prior art exists is: the embodiment of the present invention adds wireless communication module and the MCU with USB OTG function in USB device, by the MCU with USB OTG function, make mobile unit directly can read data in USB device.Meanwhile, by described wireless communication module, user is facilitated directly the data in mobile terminal to be transferred to described USB device by the mode of wireless transmission.What access due to described car-mounted terminal is the storage space that in USB device, MCU fictionalizes, and mobile terminal data write is actual memory module, therefore mobile unit is in the process of carrying out digital independent, the write of mobile terminal data can not be had influence on, thus effectively can solve existing mobile unit in the process of playing audio-video data, if need to upgrade the content in USB device, described USB device is then needed to be switched to data-transmission mode, the problem of the time-out causing voice data to be play, effectively improve Consumer's Experience, there is stronger ease for use and practicality.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the composition structural drawing of the USB device that the embodiment of the present invention provides;
Fig. 2 is the composition structural drawing of the onboard system that the embodiment of the present invention provides.
Embodiment
In below describing, in order to illustrate instead of in order to limit, propose the detail of such as particular system structure, technology and so on, understand the embodiment of the present invention thoroughly to cut.But, it will be clear to one skilled in the art that and also can realize the present invention in other embodiment not having these details.In other situation, omit the detailed description to well-known system, device, circuit and method, in order to avoid unnecessary details hinders description of the invention.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
Fig. 1 shows the composition structure of the USB device that the embodiment of the present invention provides, and for convenience of explanation, illustrate only part related to the present invention.
USB device 1 comprises USB flash disk main body 11 and usb 12, and described usb 12 is placed in USB flash disk main body 11 front end,
Described usb 12 for connecting terminal device, such as car-mounted terminal.
Comprise in described USB flash disk main body 11:
The micro-control unit 111 (Microcontroller Unit, MCU) with USB OTG function be connected with described usb 12; The described micro-control unit 111 with USB OTG function can be USB OTG single-chip microcomputer, or with the chip of USB OTG function and the combination of single-chip microcomputer.
And with the described wireless communication module 112 that is connected with the MCU111 of USB OTG function and memory module 113.
Described wireless communication module 112 is connected with the described MCU111 with USB OTG function, can be used for realizing the communication between USB device 1 and mobile terminal;
Described memory module 113 is connected with the described MCU111 with USB OTG function, for realizing the function identical with USB flash disk, comprises the functions such as the reading and writing of data, storage.
In embodiments of the present invention, the described MCU111 with USB OTG function fictionalizes a storage space, and when detecting that car-mounted terminal accesses described storage space by described usb 12, obtain the storage data in described memory module 113, the described storage data obtained are sent to described car-mounted terminal by described usb 12.
Further, before inspection vehicle mounted terminal accesses described storage space by described USB interface, the embodiment of the present invention also comprises:
The described MCU111 with USB OTG function, also for when receiving the device type inquiry instruction that car-mounted terminal is sent by described usb 12, is the information of storer to described car-mounted terminal feedback device type.
Further, the data of write also for the data write request that mobile terminal receive is sent by described wireless communication module 112, and are stored to described memory module 113 by the described MCU111 with USB OTG function.
Further, the described MCU111 with USB OTG function, also for closing car-mounted terminal to the data write-in functions of described memory module 113 or when receiving the data write request that mobile terminal is sent by described wireless communication module 112, close car-mounted terminal to the data write-in functions of described memory module 113.Pass through such scheme, when can ensure that described mobile terminal writes data by described wireless communication module 112 in memory module 113, car-mounted terminal is merely able to read the data in memory module 113, and can not write data in memory module 113, the present invention is realized simply, and memory module 113 file system logic can not be caused chaotic.
In addition, the described MCU111 with USB OTG function, can also be used for when receiving the data read request that mobile terminal is sent by described wireless communication module 112, obtain the storage data in described memory module 113, and the described storage data obtained are sent to described mobile terminal by described wireless communication module 112.
Wherein, described wireless communication module 112 can send and receive the 2G signal of GMS standard, TD-SCDMA, WCDMA, CDMA2000 standard 3G signal or/and WiFi signal etc.Described memory module 113 is preferably TF card or SD card.
Optionally, described USB flash disk main body 11 can also comprise an electronic horn, and described electronic horn is connected with described MCU111.Described electronic horn is made up of language integrated package and power amplifier block and peripheral resistor-capacitor unit, sonic switch, loudspeaker, and described electronic horn is used for when described USB device 1 switch operating state or mode of operation, sends prompt tone, such as, drips sound etc.
Optionally, described USB flash disk main body 11 is also provided with reset switch, for vehicle-mounted U-disk is returned to Default Value, facilitates user to reset after forgetting the password of wireless communication module.
Fig. 2 shows the composition structure of the onboard system that the embodiment of the present invention provides, and for convenience of explanation, illustrate only part related to the present invention.
Onboard system comprises the USB device 1 as described in embodiment as corresponding in Fig. 1, the car-mounted terminal 2 be connected with described USB device 1; And
The mobile terminal 3 communicated with described USB device 1.
Wherein, described mobile terminal 3 includes but not limited to as mobile phone, panel computer or notebook computer.
Below by an instantiation, said process is described, after described USB device 1 is inserted into described car-mounted terminal 2 by described usb 12 by user, car-mounted terminal 2 is powered for described USB device 1, and is connected to the MCU111 with USB OTG function, the type of inquiry connection device.Device type now with the current connection of MCU111 reply car-mounted terminal 2 of USBOTG function is storer, mobile unit 2 is undertaken playing that (order that MCU111 inquires car-mounted terminal 2 and operating the logic sector of disk storage maps directly to the memory module 113 in MCU111 by described usb 12 song read in described USB device 1.It should be noted that, storage space in the USB device that mobile unit 2 has access to, be through the virtual storage space out of OTG of MCU111, described MCU111 is when detecting that car-mounted terminal 2 accesses described storage space by described usb 12, obtain the data that in USB device 1, memory module 113 stores, and the described data obtained are sent to described car-mounted terminal 2 by described usb 1 2), namely car-mounted terminal <-USB agreement->USB OTG<-USB drives->MCU<-SD agreement->TF card,
Play in the process of USB device 1 song at mobile unit 2, if need the song to described USB device 1 stores to upgrade, then described mobile terminal 3 is set up radio communication by wireless communication module 112 and described USB device 1 and is connected (be preferably WIFI), by the song prestored in mobile terminal 3 by being wirelessly transmitted in the memory module 113 (preferred TF card) in described USB device 1.The benefit done like this is, memory module 113 is operated by MCU111 and car-mounted terminal 2 simultaneously, mobile terminal 3 directly carries out song renewal to memory module 113 by the wireless communication module 112 in USB device 1, namely mobile terminal <-network storage protocol->WiFi<-WiFi drives->MCU<-SD agreement->TF card, the interruption that in car-mounted terminal 2 pairs of TF cards, song reads can not be caused, namely can not affect car-mounted terminal 2 and play song in USB device 1.
It should be noted that, car-mounted terminal 2, for the access of sector any in USB device 1, all will be converted into the reading of data in TF card.Because USB interface uses usb protocol, TF card uses SD agreement, and protocol layer is different, but logical layer is all ReadSector.Therefore, mobile terminal 3, by the reading of data in wireless communication module 112 pairs of TF cards, can not affect the content of TF card; Mobile terminal 3 is by wireless communication module 112 write data in TF card, the change of TF card content can be caused, but because the content in car-mounted terminal 2 pairs of USB device 1 just reads, file system logic entanglement can not be caused, therefore only need after mobile terminal 3 data have write, send disk and change order to car-mounted terminal 2, or re-power directly to USB device 1.
Optionally, mobile terminal 3 can also directly to described USB device 1 sending controling instruction, and described steering order comprises data deletion, USB flash disk format and mode of operation switching etc.
The embodiment of the present invention adds wireless communication module and the MCU with USB OTG function in USB device, by the MCU with USB OTG function, makes mobile unit directly can read data in USB device.Meanwhile, by described wireless communication module, user is facilitated directly the data in mobile terminal to be transferred to described USB device by the mode of wireless transmission.What access due to described car-mounted terminal is the storage space that in USB device, MCU fictionalizes, and mobile terminal data write is actual memory module, therefore mobile unit is in the process of carrying out digital independent, the write of mobile terminal data can not be had influence on, namely in the process of mobile unit playing audio-video data, if need to upgrade the content in USB device, then do not need the broadcasting suspending current audio data, thus effectively improve Consumer's Experience, there is stronger ease for use and practicality.
The above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the embodiment of the present invention.

Claims (9)

1. a USB device, comprises USB flash disk main body, and the front end of described USB flash disk main body is provided with USB interface, it is characterized in that, described USB flash disk main body comprises:
The MCU with USB OTG function be connected with described USB interface,
And with the described wireless communication module that is connected with the MCU of USB OTG function and memory module;
The described MCU with USB OTG function, for fictionalizing a storage space, when detecting that car-mounted terminal accesses described storage space by described USB interface, obtain the storage data in described memory module, and the described storage data obtained are sent to described car-mounted terminal by described USB interface;
The data of write also for the data write request that mobile terminal receive is sent by described wireless communication module, and are stored to described memory module by the described MCU with USB OTG function.
2. USB device as claimed in claim 1, it is characterized in that, the described MCU with USB OTG function, also for after described data have write, write information to described car-mounted terminal feedback data, described data have write information and have comprised disk modification information.
3. USB device as claimed in claim 1, it is characterized in that, the described MCU with USB OTG function, also for when receiving the data read request that mobile terminal is sent by described wireless communication module, obtain the storage data in described memory module, and the described storage data obtained are sent to described mobile terminal by described wireless communication module.
4. USB device as claimed in claim 1, is characterized in that, before inspection vehicle mounted terminal accesses described storage space by described USB interface,
The described MCU with USB OTG function, also for when receiving the device type inquiry instruction that car-mounted terminal is sent by described USB interface, is the information of storer to described car-mounted terminal feedback device type.
5. USB device as claimed in claim 1, it is characterized in that, the described MCU with USB OTG function, also for closing car-mounted terminal to the data write-in functions of described memory module or when receiving the data write request that mobile terminal is sent by described wireless communication module, close car-mounted terminal to the data write-in functions of described memory module.
6. the USB device as described in any one of claim 1 to 5, is characterized in that, described wireless communication module is WIFI module.
7. the USB device as described in any one of claim 1 to 5, is characterized in that, described memory module is TF card.
8. an onboard system, is characterized in that, described onboard system comprises the USB device as described in any one of claim 1 to 7,
The car-mounted terminal be connected with described USB device; And
The mobile terminal communicated with described USB device.
9. onboard system as claimed in claim 8, it is characterized in that, described mobile terminal is mobile phone, panel computer or notebook computer.
CN201510368629.6A 2015-06-29 2015-06-29 USB device and onboard system Active CN104915309B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160092391A1 (en) * 2014-09-25 2016-03-31 Hyundai Motor Company Interface apparatus, vehicle having the same, and method of 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
CN112802502A (en) * 2021-03-09 2021-05-14 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

Citations (3)

* Cited by examiner, † Cited by third party
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
CN204066738U (en) * 2014-08-06 2014-12-31 熊宝零 Vehicle-mounted U-disk and onboard system
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160092391A1 (en) * 2014-09-25 2016-03-31 Hyundai Motor Company Interface apparatus, vehicle having the same, and method of 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
CN112802502A (en) * 2021-03-09 2021-05-14 湖南工学院 Vehicle-mounted intelligent USB flash disk and audio content distribution method and system based on network service
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

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