WO2010118587A1 - 基于嵌入式微处理器的车载设备 - Google Patents

基于嵌入式微处理器的车载设备 Download PDF

Info

Publication number
WO2010118587A1
WO2010118587A1 PCT/CN2009/072367 CN2009072367W WO2010118587A1 WO 2010118587 A1 WO2010118587 A1 WO 2010118587A1 CN 2009072367 W CN2009072367 W CN 2009072367W WO 2010118587 A1 WO2010118587 A1 WO 2010118587A1
Authority
WO
WIPO (PCT)
Prior art keywords
embedded microprocessor
module
control instruction
video
storage device
Prior art date
Application number
PCT/CN2009/072367
Other languages
English (en)
French (fr)
Inventor
易润平
Original Assignee
Yi Runping
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yi Runping filed Critical Yi Runping
Publication of WO2010118587A1 publication Critical patent/WO2010118587A1/zh

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/10537—Audio or video recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Definitions

  • the invention relates to an in-vehicle device, in particular to an in-vehicle diskless multimedia entertainment device based on an embedded microprocessor.
  • the existing car DVD navigation device is based on the original car DVD player and also connected to a DVD navigation board on the DVD motherboard to play the DVD and realize the GPS navigation function. If the navigation function of the car DVD navigation device is not considered, in terms of entertainment function, when playing a DVD, the audio and video data of the DVD disc is read by the DVD optical head, and the video data is processed by the single chip plus the video decoding chip, through the video decoding chip.
  • the OSD handles menu operations and menu displays. The ability of the microcontroller and video decoder chip to process video data is limited, high-definition high-definition 3D video data cannot be processed, and the OSD display menu has a single graphic, monotonous color, and the response speed is slow when making operation selections.
  • the DVD optical head is a product that integrates physical, optical, mechanical, and electronic products.
  • the cost is high.
  • the DVD optical head is prone to mechanical failure due to temperature and vibration, resulting in the inability to read the disc.
  • DVD discs and DVD discs Due to the volume factor of DVD discs and DVD discs, the volume of DVD disc drives cannot be reduced to a small extent. As a portable and inexpensive storage medium, it is unmatched by other current data storage media. Advantages, but because DVD discs are easily damaged, and their storage capacity is small, and as new storage technologies continue to evolve, they become less and less suitable for future generations. The need for car navigation entertainment devices.
  • the hard disk As a storage medium, the hard disk has a larger amount of data stored than a DVD disc, but the shock resistance of the most important internal components of the hard disk is very low.
  • the use of the hard disk as a storage medium on the car navigation device undoubtedly exacerbates the damage of the magnetic head.
  • the speed of the micro hard disk is lower than that of the hard disk and the volume is small, it is a mechanical storage tool, and the magnetic head portion is easily damaged in the case of severe vibration.
  • Chinese invention patent Publication No.: CN1755389, publication date: 2006.04.05 discloses an embedded multimedia intelligent GPS navigation device whose storage data carrier is a micro hard disk, so it is not suitable for a car navigation device.
  • Solid-state drive is a hard disk made with a solid-state electronic storage chip array. Since the solid-state drive does not have the rotating medium of an ordinary hard disk, it has excellent shock resistance and a wide operating temperature.
  • the extended-temperature electronic hard disk can work at -45. °C ⁇ +85 ° C, so its application in car navigation entertainment equipment can just make up for the above mentioned problems.
  • the SSD is not as easy to carry as the CD, and the interface for reading the data of the SSD is also very complicated. Therefore, the SSD can not be replaced as a CD, and it can be carried around. This situation leads to audio and video in the car navigation entertainment device.
  • the file is difficult to update. If you want to update it, you can only add an external storage device to copy the audio and video files in the storage device to the SSD to update the original data file. This is very inconvenient.
  • the current technology has at least the following disadvantages:
  • the menu operation interface is simple in graphics, monotonous in color, and inflexible at the same time.
  • the DVD player and micro hard disk are easily damaged on the in-vehicle device; 4. The video and audio data on the in-vehicle device cannot be updated in time;
  • the invention uses the video data processed by the embedded microprocessor to realize the processing of the video data with high compression ratio, and at the same time, processes the menu operation and the interface display through the embedded processor, and solves the above-mentioned technical problems.
  • An in-vehicle device based on an embedded microprocessor comprising:
  • a storage device an embedded microprocessor, the embedded microprocessor is connected to the storage device;
  • the embedded microprocessor transmits the first video signal to the display device by reading the first video data in the storage device, and converting the first video data into a first video signal, and passing the display device Processing the first video signal.
  • the display device comprises a display screen, an LED backlight and a display module, the display module comprises an LED backlight driving unit, the display module is connected with an embedded microprocessor, and the display module receives a video signal of the embedded microprocessor.
  • the LED backlight is driven by the LED backlight driving unit to display video information on the display.
  • the storage device stores a control instruction set and a graphic database associated with the control instruction
  • the device further includes a manipulation device, the manipulation device is connected to the embedded microprocessor, and the manipulation device controls the embedded microprocessor to read a control instruction set stored by the storage device, the embedded microprocessor reads a control instruction in the control instruction set and sends the graphic data associated with the control instruction Displayed to the video display device.
  • the control instruction set includes a first control instruction for driving the embedded microprocessor to read the first video data in the storage device, the embedded microprocessor acquiring the first control instruction, and reading the first video data in the storage device .
  • the manipulation device includes one or both of a touch screen and a control button.
  • the storage device is a non-mechanical electronic storage device.
  • the electronic storage device includes one or more of a large capacity FLASH, a solid state hard disk, and an SD card.
  • the device further includes an audio processing device, the audio processing device includes an audio decoding chip, a sound processing module and a power amplifier, the audio decoding chip is connected to the sound processing module, and the audio decoding chip is connected to the embedded microprocessor, and the receiving and embedding
  • the audio digital signal sent by the microprocessor, the audio decoding chip also receives the audio digital signal sent by the Bluetooth module, the WIFI module and the GSM module, and the audio decoding chip processes the audio digital signal and sends it to the sound processing module for processing and then handing it to the power amplifier. Play it out.
  • the audio processing device further includes a channel selection module and a channel switch, wherein the channel selection module is connected to the embedded microprocessor, the channel selection module is connected with the channel switch and controls the channel switch operation, and the channel switch and the sound effect processing module are connected.
  • the audio processing module and the power amplifier are connected, and the audio analog signal is selected through a channel switch, and the channel switch processes the selected audio signal through the sound processing module and plays it in the power amplifier.
  • the audio analog signals include CDC audio, CMMB audio, and AV audio.
  • the electronic storage device stores a wince system running in the embedded microprocessor and the memory.
  • the electronic storage device also stores navigation software, audio and video playing software, and other entertainments. Music software.
  • the navigation screen can be displayed on the display device, or the user can be reminded by the sound, the user can use the navigation sound information, and the sound and video information can be simultaneously.
  • the device further includes a GPS navigation module
  • the control instruction further includes a second control instruction for driving the operation of the GPS module
  • the GPS navigation module acquires the second control instruction, acquires positioning data, and sends the positioning data to the
  • the embedded microprocessor processes to generate a positioning video signal, and the embedded microprocessor transmits the positioning video signal to the video display device for display.
  • the embedded microprocessor acts as a processor that can handle multiple tasks at the same time. It can also play back audio and video files in the display device display and audio processing devices.
  • the downloaded file can be a picture or just a music file, or it can be a video file with sound.
  • the device further includes a WIFI module, configured to download the third video data from the network
  • the control instruction further includes a third control instruction that drives the WIFI module to work
  • the WIFI module acquires the third control instruction to obtain the third video.
  • the data is sent to an embedded microprocessor that stores the third video data in an electronic storage device or converts the third video data into a video signal for display by the display device.
  • the WIFI module is a wireless transmission module, and implements a local area Internet access function.
  • the wireless transmission module also includes one or more of a WiMax module that implements a local area network function and a 3G network transmission module that implements a roaming function.
  • the GSM module has the functions of calling and sending short messages of an ordinary mobile phone, so the device further includes an audio input module, the audio input unit includes a recording module and an audio conversion chip, and the recording module is connected with the audio conversion chip.
  • the audio conversion chip is connected to the embedded microprocessor, and the recording module is configured to obtain audio information, and the audio information is converted into a digital signal by the audio conversion chip, and the embedded microprocessor obtains the digital signal and processes the digital signal.
  • the device further includes a Bluetooth module, the Bluetooth module is connected to the embedded microprocessor, the Bluetooth module transmits the received fourth video data to the embedded microprocessor, and the embedded microprocessor stores the fourth video data information.
  • the Bluetooth module is connected to the embedded microprocessor, the Bluetooth module transmits the received fourth video data to the embedded microprocessor, and the embedded microprocessor stores the fourth video data information.
  • the device also includes a GSM module for downloading fifth video data from the network side, and transmitting the fifth video data to an embedded microprocessor, the embedded microprocessor storing the fifth video data in an electronic storage In the device.
  • a GSM module for downloading fifth video data from the network side, and transmitting the fifth video data to an embedded microprocessor, the embedded microprocessor storing the fifth video data in an electronic storage In the device.
  • the apparatus further includes the apparatus further comprising a digital television module for acquiring a television signal, the embedded microprocessor obtaining the television signal for transmission to the display device for display.
  • the device further includes a video input control unit, the video input unit includes a channel switch for controlling a source of the video signal input to the display device, and a channel selection module for controlling the channel switch.
  • the channel selection module and the embedded microprocessor connection are controlled by an embedded microprocessor.
  • the device further includes a power supply device, the power supply device includes a voltage comparator and a power conversion module having a function of a voltage overvoltage and a voltage undervoltage, and the voltage comparator controls the power conversion module to convert the input voltage into a voltage according to the input voltage information.
  • the device also includes various expansion interfaces, including an external SD card slot, a USB connection interface, an AV input interface, an I POD input interface, a car rear view input, and the like.
  • various expansion interfaces including an external SD card slot, a USB connection interface, an AV input interface, an I POD input interface, a car rear view input, and the like.
  • the invention removes the DVD player, but realizes the storage and playback functions of the DVD and other videos, which greatly improves the stability of the device and reduces the failure rate of the device.
  • the invention downloads and plays audio and video files online through a wireless network, and realizes timely updating of audio and video files.
  • the present invention can play more formats of audio and video files by using the hardware of the embedded microprocessor and the software decoding of the wince operating system, which greatly expands the compatibility of the device with the file format.
  • the present invention greatly improves the shock resistance of the device by using a non-mechanical electronic storage device such as a solid state hard disk, a FLASH or an SD card as a storage tool, and the service life is greatly increased.
  • the invention integrates a plurality of functional modules, and processes data through an embedded microprocessor.
  • the device is not only small in size but also very powerful in function, and the switching task between navigation and entertainment is handled by the embedded microprocessor, and the operation interface is colorful. , Switching response speed is fast.
  • the present invention uses an embedded microprocessor to decode video files, making the displayed picture more vivid and more vivid.
  • FIG. 1 is a block diagram showing the structure of an in-vehicle device according to Embodiment 1 of the present invention.
  • FIG. 2 is a block diagram showing the structure of an in-vehicle device according to Embodiment 2 of the present invention.
  • 3 is a block diagram showing the structure of an in-vehicle device according to Embodiment 3 of the present invention.
  • Fig. 4 is a block diagram showing the structure of an in-vehicle device according to a fourth embodiment of the present invention.
  • Fig. 5 is a block diagram showing the structure of an in-vehicle device according to a fifth embodiment of the present invention.
  • Fig. 6 is a block diagram showing the structure of an in-vehicle device according to a sixth embodiment of the present invention.
  • Figure 7 is a block diagram showing the structure of an in-vehicle device according to Embodiment 7 of the present invention.
  • Figure 8 is a block diagram showing the structure of an in-vehicle device according to Embodiment 8 of the present invention.
  • the invention provides an in-vehicle device, the main working principle is to process a video decoding agent video decoding chip by using an embedded microprocessor; replacing an OSD processing menu operation and an interface display in a video decoding chip by an embedded microprocessor; a large-capacity storage device It replaces the existing DVD player, and realizes online downloading and online playback of DVDs and other videos through a wireless network, and realizes real-time updating of audio and video files.
  • an in-vehicle device based on an embedded microprocessor includes an embedded system, a display device, and an audio processing device.
  • the embedded system includes an embedded microprocessor, a memory and a solid state hard disk, wherein the embedded microprocessor is connected to a solid state hard disk through a memory, and the embedded system stores and runs a wince operating system, the embedded system Applications such as graphic processing software, playback software, and other entertainment software are also running.
  • the embedded microprocessor reads the first data in the solid state hard disk through the memory, and converts the first data into a first audio signal and a first video signal, and the first audio signal and the first view
  • the frequency signals are respectively transmitted to the audio processing device and the display device, and the first audio signal and the first video signal are processed by the audio processing device and the display device.
  • the display device comprises a display screen, an LED backlight and a display module
  • the display module comprises an LED backlight driving unit
  • the display module is connected with an embedded microprocessor
  • the display module acquires the first sent by the embedded microprocessor
  • the video signal is driven by the LED backlight driving unit to drive the LED backlight to display video information on the display screen.
  • the audio processing device includes an audio decoding chip, a sound processing module and a power amplifier.
  • the audio decoding chip is connected to the sound processing module, and the audio decoding chip is connected to the embedded microprocessor to receive the audio digital data sent by the embedded microprocessor.
  • the audio decoding chip further receives an audio digital signal sent by the Bluetooth module, the WIFI module and the GSM module, and the audio decoding chip processes the audio digital signal and sends it to the audio processing module for processing and then delivering the audio to the power amplifier.
  • the audio processing device further includes a channel selection module and a channel switch, wherein the channel selection module is connected to the embedded microprocessor, the channel selection module is connected with the channel switch and controls the channel switch operation, and the channel switch and the sound effect processing module are connected.
  • the audio processing module and the power amplifier are connected, and the audio analog signal is selected through a channel switch, and the channel switch processes the selected audio signal through the sound processing module and plays it in the power amplifier.
  • the solid state hard disk stores a control instruction set and a graphic database associated with the control instruction
  • the device further includes a manipulation device, the manipulation device is connected to the embedded microprocessor, and the manipulation device controls the embedded microprocessor to read And taking the control instruction set stored in the storage device, the embedded microprocessor reads the control instruction in the control instruction set and sends the graphic data associated with the control instruction to the video display device for display.
  • the control instruction set includes a first control instruction for driving an embedded microprocessor to read first video data in the storage device, the embedded microprocessor acquiring the first control instruction, and reading the storage device The first video data in .
  • the solid state hard disk is a non-mechanical electronic storage device, and the electronic storage device may also be one or more of a solid state hard disk, a large capacity FLASH or an SD card.
  • the in-vehicle device further includes a GPS navigation module for acquiring GPS positioning data, wherein the embedded system further runs GPS navigation software, the GPS navigation module and the embedded micro-processing Connected, the embedded microprocessor receives the positioning data, and converts the positioning data into a positioning audio signal and a positioning video signal, and respectively respectively positioning the positioning audio signal and the positioning video signal to the audio processing device and the display device Transmitting, and processing the audio signal and the video signal by the audio processing device and the display device.
  • a GPS navigation module for acquiring GPS positioning data
  • the embedded system further runs GPS navigation software, the GPS navigation module and the embedded micro-processing Connected, the embedded microprocessor receives the positioning data, and converts the positioning data into a positioning audio signal and a positioning video signal, and respectively respectively positioning the positioning audio signal and the positioning video signal to the audio processing device and the display device Transmitting, and processing the audio signal and the video signal by the audio processing device and the display device.
  • the control instruction set further includes a second control instruction for driving the operation of the GPS navigation module, the embedded microprocessor receives the second control instruction and processes, and the embedded microprocessor sends a second operation to the GPS navigation module to drive the GPS navigation module. Control instructions, the navigation module feeds back the result of the work to the embedded microprocessor, and the embedded microprocessor sends the returned result to the display device and the audio processing device for processing.
  • the in-vehicle device further includes a WIFI module
  • the WIFI module is configured to implement a local area network access function
  • the WIFI module downloads the second data from the network side
  • the Transmitting the data to the embedded microprocessor the embedded microprocessor is configured to receive the second data, and store the second data in an electronic solid state hard disk or convert the second data into a second audio signal or
  • the second video signal is displayed or played by the display device or the audio processing device.
  • the control instruction set further includes a third control instruction for driving a WIFI module connected to the embedded microprocessor, the embedded microprocessor receives the third control instruction and processes, and the embedded microprocessor sends the WIFI module to the WIFI module.
  • the third control instruction of the work, the WIFI module feeds back the result of the work to the embedded microprocessor, and the embedded microprocessor sends the returned result to the display device and the audio processing device for processing.
  • the in-vehicle device further includes an audio input unit, the audio input unit includes a recording module and an audio conversion chip, and the recording module is connected to the audio conversion chip, and the audio conversion chip and the embedded micro processing
  • the recording module is configured to acquire audio information, and the audio information is converted into a digital signal by an audio conversion chip, and the embedded microprocessor obtains the digital signal and processes the digital signal.
  • the control instruction set further includes a fourth control instruction for driving an audio input unit connected to the embedded microprocessor, the embedded microprocessor receives the fourth control instruction and processes, and the embedded microprocessor sends the driver to the audio input unit.
  • the fourth control command of the audio input unit works, the audio input unit feeds back the result of the operation to the embedded microprocessor, and the embedded microprocessor sends the returned result to the display device and the audio processing device for processing.
  • the in-vehicle device further includes a GSM module, and the GSM module is configured to download third data from the network side, and send the third data to the embedded microprocessor for processing;
  • An embedded microprocessor configured to store the third data in an electronic storage device and acquire audio information from an audio input unit, and send the audio information to the network through the GSM module
  • the audio processing device further includes the channel selection module and the channel switch as described in Embodiment 2, wherein the channel selection module and the channel switch are used to process a switching task of the audio signal.
  • the in-vehicle device further includes a Bluetooth module, and the Bluetooth module is connected to the embedded microprocessor.
  • the Bluetooth module receives the third data and transmits it to the embedded microprocessor.
  • the embedded microprocessor stores the third data information in an electronic storage device or sends it to the audio processing device for processing; in the downlink, the embedded microprocessor acquires the fourth data from the audio input unit or the electronic storage device
  • the control data set sent by the Bluetooth module to the network by the Bluetooth module further includes a fifth control instruction for driving the Bluetooth module connected to the embedded microprocessor, and the embedded microprocessor receives the fifth control instruction and processes, embedding
  • the microprocessor sends a fifth control command for driving the Bluetooth module to the Bluetooth module, and the Bluetooth module feeds back the result of the work to the embedded microprocessor, and the embedded microprocessor sends the returned result to the display device and the audio processing device. deal with.
  • the in-vehicle device further includes a device further comprising a digital television module and an AM/FM radio module, wherein the digital television module and the AM/FM radio module are connected to the embedded microprocessor, the number
  • the television module is controlled by the embedded microprocessor and sends the acquired video signal to the embedded microprocessor, and the embedded microprocessor obtains the video signal and processes and generates the fifth video data, and the video data is sent to the display device for processing by the embedded microprocessor.
  • the digital television module and the AM/FM radio module transmit the audio signal to an audio processing device for processing.
  • the device further includes a video input control device, and the video input unit includes a channel And a switch for controlling a source of the video signal input to the display device; further comprising a channel selection module for controlling the channel switch, wherein the channel selection module and the embedded microprocessor are controlled by the embedded microprocessor.
  • the control instruction set further includes a digital television module that drives the connection with the embedded microprocessor and
  • the sixth control instruction of the AM/FM radio module works, the embedded microprocessor receives the manipulation command and processes, and the embedded microprocessor sends the digital TV module and the AM/FM radio module to the digital television module and the AM/FM radio module to work.
  • the sixth control command, the digital television module and the AM/FM radio module feed back the result of the operation to the embedded microprocessor, and the embedded microprocessor sends the returned result to the display device and the audio processing device for processing.
  • the digital television module and the AM/FM radio module in the in-vehicle device may be selected one by one, and the function is to obtain a video or audio signal by radio waves.
  • an in-vehicle device includes an embedded system, a GPS navigation module, a WIFI module, a GSM module, a digital television module, a Bluetooth module, an infrared module, an AM/FM radio module, a display device, and an audio processing device.
  • the embedded system includes an embedded microprocessor, a memory and a solid state hard disk, and the embedded microprocessor and the memory run a wince operating system, and the device runs GPS navigation software, graphic processing software, and playing software.
  • the application software such as other entertainment software, the wince operating system and the application software are stored in the solid state hard disk, the embedded microprocessor separately acquires the GPS navigation module for positioning information; the WIFI module for realizing the LAN access function; GSM module for SMS and GPRS wireless Internet access; Digital TV module for receiving digital TV signals; Bluetooth module for hands-free function, phone book and mobile Internet access; and infrared module for short-distance wireless transmission of files; Receiving AM/FM shortwave Functional modules such as the AM/FM radio module of the radio Blocks are connected, and these function modules receive data from the outside and process them, and transfer the processed data to the embedded microprocessor for processing.
  • the present invention provides a new in-vehicle device that does not have a DVD disc but that enables real-time updates of audio and video files, which handles video decoding and menu operations and interface display through an embedded microprocessor.
  • the scope of the present invention is not limited to the above-described embodiments, and is within the scope of the present invention.

Landscapes

  • Navigation (AREA)

Description

基于嵌入式微处理器的车载设备
【技术领域】
本发明涉及一种车载设备， 具体涉及一种基于嵌入式微处理器的车载无 碟多媒体娱乐设备。
【背景技术】
现有的车载 DVD导航设备是在原来的车载 DVD碟机的基础上还在 DVD 主板上连接一个 GPS导航板，起到既能播放 DVD又能实现 GPS导航功能的设 备。 如果不考虑该车载 DVD 导航设备的导航功能， 就娱乐功能而言， 在播放 DVD时， 通过 DVD光头读取 DVD光碟的音视频数据， 通过单片机加视频解码 芯片处理视频数据， 通过视频解码芯片的 OSD处理菜单操作和菜单显示。单片 机和视频解码芯片处理视频数据的能力有限，高压缩比的高清 3D视频数据无法 处理， 而且 OSD显示菜单的图形单一， 色彩单调， 同时在做操作选择时， 反映 速度也很慢。
另一方面， DVD光头是一个集物理、 光学、 机械和电子为一体的产品， 成本很高， 同时车载 DVD 由于温度以及震动的原因， DVD光头很容易出现机 械故障， 导致无法读碟。
同时由于 DVD碟箱和 DVD光盘的体积因素限定了 DVD光驱的体积不可 能缩小到很小的范围， 作为一种方便携带、 价格便宜的存储媒介， 其在具有目 前其他数据存储媒介无可比拟的优点， 但是由于 DVD光盘容易损坏， 而且其存 储量不大， 而且随着新的存储技术的不断发展， 其变得越来越不适合于以后的 车载导航娱乐设备的需要。
硬盘作为一种存储媒介， 虽然存储的数据量要大于 DVD光盘， 但是其内 部最重要的部件磁头的防震性非常低， 在车载导航设备上使用硬盘作为存储媒 介无疑加剧了磁头的损坏素的， 微硬盘的转速虽然比硬盘转速低， 体积小， 但 是其毕竟是机械存储工具， 其磁头部分在剧烈的震动情况也会很容易损坏。 中 国发明专利 （公开号： CN1755389, 公开日： 2006.04.05) 公开了一种嵌入式 多媒体智能 GPS导航装置， 其存储数据的载体为微硬盘， 所以其并不适用于车 载导航装置。
固态硬盘 （SSD ) 是用固态电子存储芯片阵列而制成的硬盘， 由于固态 硬盘没有普通硬盘的旋转介质， 因而抗震性极佳， 同时工作温度很宽， 扩展温 度的电子硬盘可工作在 -45°C〜+85°C， 所以其应用在车载导航娱乐设备上刚好 可以弥补上述所说的问题。
但是固态硬盘不及光盘容易携带， 而且固态硬盘的数据读取的接口也很 复杂， 所以固态硬盘基本上不能像光盘一样随便更换， 随身携带， 这样的情况 就导致了车载导航娱乐设备里的音视频文件很难得到更新， 想要更新的话也只 能外接一存储设备将该存储设备里的音视频文件拷贝到固态硬盘中存储以更新 原来的数据文件， 这样的话就很不方便。
综上所述， 目前的技术至少具有以下几个缺点：
1 . 单片机加视频解码芯片视频解码能力不强， 无法实现高压缩比视频 格式的播放；
2. 菜单操作界面图形简单， 色彩单调， 同时操作不灵活。
3. DVD光碟机和微硬盘在车载设备上使用容易损坏； 4. 车载设备上的影音视频数据无法及时得到更新;
【发明内容】
本发明使用嵌入式微处理器处理的视频数据， 实现了高压缩比的视频数 据的处理， 同时通过嵌入式处理器来处理菜单操作和界面显示， 解决了上述所 述的技术问题。
本发明采用的具体技术方案如下：
一种基于嵌入式微处理器的车载设备， 包括：
存储装置， 嵌入式微处理器， 所述嵌入式微处理器与所述存储装置连接； 还包括，
与嵌入式微处理器连接的显示装置；
该嵌入式微处理器通过读取存储装置中的第一视频数据， 并将所述第一 视频数据转换成第一视频信号， 将所述第一视频信号向显示装置发送， 并通过 所述显示装置处理所述第一视频信号。
所述的显示装置包括显示屏、 LED 背光和显示模块， 所述的显示模块包 括 LED背光驱动单元， 所述的显示模块与嵌入式微处理器连接， 该显示模块接 受嵌入式微处理器的视频信号，通过 LED背光驱动单元驱动 LED背光工作，从 而在显示屏上显示视频信息。
所述存储装置存储有控制指令集以及与该控制指令相关联的图文数据 库， 该设备还包括操控装置， 所述操控装置与嵌入式微处理器连接， 所述操控 装置控制嵌入式微处理器读取所述存储装置存储的控制指令集， 所述嵌入式微 处理器读取控制指令集中的控制指令并将与该控制指令相关联的图文数据发送 到视频显示装置显示。
所述控制指令集包括驱动嵌入式微处理器读取存储装置中第一视频数据 的第一控制指令， 所述嵌入式微处理器获取所述第一控制指令， 读取存储装置 中的第一视频数据。
所述的操控装置包括触摸屏和控制键中的一种或两种。
所述存储装置为非机械式的电子存储装置。
所述的电子存储装置包括大容量 FLASH、 固态硬盘和 SD卡中的一种或 多种。
该设备还包括音频处理装置， 所述的音频处理装置包括音频解码芯片、 音效处理模块和功放， 该音频解码芯片与音效处理模块连接， 所述的音频解码 芯片与嵌入式微处理器连接， 接收嵌入式微处理器发送来的音频数字信号， 该 音频解码芯片还接收蓝牙模块、 WIFI模块和 GSM模块发送的音频数字信号， 该音频解码芯片将音频数字信号处理后发送给音效处理模块处理后交给功放播 放出来。
所述的音频处理装置还包括通道选择模块、 通道开关， 所述的通道选择 模块与嵌入式微处理器连接， 该通道选择模块与通道开关连接并控制通道开关 工作， 通道开关和音效处理模块连接， 音效处理模块和功放连接， 音频模拟信 号通过通道开关选择， 该通道开关将选择后的音频信号通过音效处理模块处理 后在功放中播放出来。该音频模拟信号包括 CDC音频、 CMMB音频和 AV音频。
所述电子存储装置中存储有 wince系统， 该 wince系统运行于嵌入式微 处理器和内存中。
所述的电子存储装置中还存储有导航软件、 音视频播放软件以及其他娱 乐软件。
该设备工作在导航功能时， 可以通过将导航画面显示在显示装置上， 也 可以通过声音来提醒使用者， 给使用者以导航的声音信息， 也可以同时有声音 和视频信息。
该设备还包括 GPS导航模块， 所述控制指令还包括驱动 GPS模块工作 的第二控制指令， 所述 GPS导航模块获取所述第二控制指令， 获取定位数据， 并将所述定位数据发送给所述嵌入式微处理器处理， 生成定位视频信号， 该嵌 入式微处理器将所述定位视频信号发送给视频显示装置显示。
嵌入式微处理器作为一种可以同时处理多种任务的处理器， 其在存储音 频和视频文件时， 也可以同时在显示装置显示和音频处理装置中播放出来。
当然下载的文件可以为图片或者仅仅是音乐文件， 也可以是有声音的视 频文件。
该设备还包括 WIFI模块， 用于从网络端下载第三视频数据， 所述控制指 令还包括驱动 WIFI模块工作的第三控制指令， 所述 WIFI模块获取所述第三控 制指令， 获取第三视频数据并将其发送给嵌入式微处理器， 该嵌入式微处理器 将所述第三视频数据存储在电子存储装置中或将所述第三视频数据转换为视频 信号， 通过所述显示装置显示。
所述的 WIFI模块为无线传输模块， 实现局域上网功能。 随着科技的不断 发展， WiMax和 3G网络技术不断成熟， 所以所述的无线传输模块还包括实现 局域网功能的 WiMax模块和实现漫游功能的 3G网络传输模块中的一种或多种。
目前通过 GSM网络下载影音文件速度太慢， 只能通过 GSM网络实现通 话和收发短信的功能。 所述 GSM模块既具有普通手机具有的通话和发送短信息的功能，所以该 设备还包括音频输入模块， 所述的音频输入单元包括录音模块和音频转换芯片， 录音模块与音频转换芯片连接， 该音频转换芯片与嵌入式微处理器连接， 录音 模块用于获取音频信息， 该音频信息通过音频转换芯片转换成数字信号， 所述 嵌入式微处理器获得该数字信号并处理。
该设备还包括蓝牙模块， 所述的蓝牙模块与嵌入式微处理器连接， 蓝牙 模块将接收到第四视频数据传输给嵌入式微处理器处理， 嵌入式微处理器将所 述第四视频数据信息存储在电子存储装置中。
该设备还包括 GSM模块， 用于从网络侧下载第五视频数据， 并将所述第 五视频数据发送给嵌入式微处理器处理， 该嵌入式微处理器将所述第五视频数 据存储在电子存储装置中。
该设备还包括设备还包括数字电视模块， 用于获取电视信号， 嵌入式微 处理器获得所述电视信号发送给显示装置显示。
所述的设备还包括视频输入控制装置， 所述的视频输入单元包括一通道 开关， 用于控制输入显示装置的视频信号的来源； 还包括一通道选择模块， 用 于控制所述通道开关， 所述的通道选择模块与嵌入式微处理器连接受嵌入式微 处理器控制。
该设备还包括供电装置， 所述供电装置包括具有电压过高和电压过低功 能的电压比较器和电源转化模块， 所述的电压比较器根据输入电压信息控制电 源转化模块将输入的电压转变成各模块正常工作的电压。
该设备还包括各种扩展接口， 所述的扩展接口包括外接 SD 卡槽、 USB 连接接口、 AV输入接口、 I POD输入接口、 汽车后视输入等。 本发明的有益的技术效果在于：
1 . 本发明去掉 DVD光碟机，但是却实现了 DVD以及其他视频的 存储以及播放功能， 大大提升了设备的稳定性， 降低了设备的 故障率。
2. 本发明通过无线网络来下载以及在线播放影音文件， 实现了影 音文件的及时更新。
3. 本发明通过使用嵌入式微处理器的硬件以及 wince操作系统的 软件解码， 可以播放更多格式的影音文件， 极大的扩展了设备 对文件格式的兼容性。
4. 本发明通过采用固态硬盘、 FLASH或者 SD卡等非机械式的电 子存储装置作为存储工具， 大大提高了设备的防震性， 使用寿 命也大大增加。
5. 本发明集成了多种功能模块， 通过一个嵌入式微处理器处理数 据， 设备不仅体积小， 而且功能非常强大， 通过嵌入式微处理 器来处理导航和娱乐之间的切换任务， 操作界面色彩绚丽， 切 换反应速度快。
6. 本发明使用嵌入式微处理器来对视频文件进行解码， 使显示的 画面更加绚丽逼真， 色彩更丰富。
【附图说明】
图 1为本发明实施例 1 的车载设备的结构框图。
图 2为本发明实施例 2的车载设备的结构框图。 图 3为本发明实施例 3的车载设备的结构框图。
图 4为本发明实施例 4的车载设备的结构框图。
图 5为本发明实施例 5的车载设备的结构框图。
图 6为本发明实施例 6的车载设备的结构框图。
图 7为本发明实施例 7的车载设备的结构框图。
图 8为本发明实施例 8的车载设备的结构框图。
【具体实施方式】
本发明提供了一种车载设备， 主要工作原理是用嵌入式微处理器处理视 频解码代理视频解码芯片；通过嵌入式微处理器替代视频解码芯片中的 OSD处 理菜单操作和界面显示； 大容量的存储装置替代现有的 DVD光碟机， 并通过无 线网络实现 DVD以及其他视频的在线下载以及在线播放， 并且实现了影音文件 的实时更新任务。 下面结合说明书附图和实施例对本发明做进一步的说明： 实施例 1：
如图 1 所示， 一种基于嵌入式微处理器的车载设备， 包括嵌入式系统、 显示装置和音频处理装置。
所述的嵌入式系统包括嵌入式微处理器、 内存和固态硬盘， 所述的嵌入 式微处理器通过内存与固态硬盘连接，所述的嵌入式系统中存储并运行有 wince 操作系统， 该嵌入式系统中还运行有图文处理软件、 播放软件以及其他娱乐软 件等应用软件。
所述的嵌入式微处理器通过内存读取固态硬盘中的第一数据， 并将所述 第一数据转换成第一音频信号和第一视频信号， 将所述第一音频信号和第一视 频信号分别向音频处理装置和显示装置发送， 并通过所述音频处理装置和显示 装置处理所述第一音频信号和第一视频信号。
所述的显示装置包括显示屏、 LED 背光和显示模块， 所述的显示模块包 括 LED背光驱动单元， 所述的显示模块与嵌入式微处理器连接， 该显示模块获 取嵌入式微处理器发送的第一视频信号，通过 LED背光驱动单元驱动 LED背光 工作， 从而在显示屏上显示视频信息。
所述的音频处理装置包括音频解码芯片、 音效处理模块和功放， 该音频 解码芯片与音效处理模块连接， 所述的音频解码芯片与嵌入式微处理器连接， 接收嵌入式微处理器发送来的音频数字信号， 该音频解码芯片还接收蓝牙模块、 WIFI模块和 GSM模块发送的音频数字信号， 该音频解码芯片将音频数字信号 处理后发送给音效处理模块处理后交给功放播放出来。
所述的音频处理装置还包括通道选择模块、 通道开关， 所述的通道选择 模块与嵌入式微处理器连接， 该通道选择模块与通道开关连接并控制通道开关 工作， 通道开关和音效处理模块连接， 音效处理模块和功放连接， 音频模拟信 号通过通道开关选择， 该通道开关将选择后的音频信号通过音效处理模块处理 后在功放中播放出来。
所述固态硬盘中存储有控制指令集以及与该控制指令相关联的图文数据 库， 该设备还包括操控装置， 所述操控装置与嵌入式微处理器连接， 所述操控 装置控制嵌入式微处理器读取所述存储装置存储的控制指令集， 所述嵌入式微 处理器读取控制指令集中的控制指令并将与该控制指令相关联的图文数据发送 到视频显示装置显示。
所述控制指令集包括驱动嵌入式微处理器读取存储装置中第一视频数据 的第一控制指令， 所述嵌入式微处理器获取所述第一控制指令， 读取存储装置 中的第一视频数据。
在所述的实施例 1 中固态硬盘为非机械式的电子存储装置， 该电子存储 装置还可为固态硬盘、 大容量 FLASH或 SD卡中的一种或多种。
实施例 2
在上述实施例 1 的基础之上，所述的车载设备还包括获取 GPS定位数据 的 GPS导航模块， 所述的嵌入式系统中还运行有 GPS导航软件， 所述的 GPS 导航模块与嵌入式微处理器连接， 所述的嵌入式微处理器接收所述定位数据， 并将所述定位数据转换成定位音频信号和定位视频信号， 将所述定位音频信号 和定位视频信号分别向音频处理装置和显示装置发送， 并通过所述音频处理装 置和显示装置处理所述音频信号和视频信号。
所述的控制指令集还包括驱动 GPS导航模块工作的第二控制指令， 嵌入 式微处理器接收该第二控制指令并处理， 嵌入式微处理器向 GPS导航模块发送 驱动该 GPS导航模块工作的第二控制指令， 该导航模块将工作后的结果反馈给 嵌入式微处理器， 嵌入式微处理器将其返回的结果发送给显示装置和音频处理 装置处理。
实施例 3
在上述实施例 1 的基础之上， 所述的车载设备还包括 WIFI模块， 所述的 WIFI模块用于实现局域网上网功能， 所述的 WIFI模块从网络侧下载第二数据， 并将所述第二数据向嵌入式微处理器发送， 所述嵌入式微处理器用于接收所述 第二数据， 并将所述第二数据存储在电子固态硬盘中或将所述第二数据转换为 第二音频信号或第二视频信号， 并通过所述显示装置或音频处理装置显示或播 放。 所述的控制指令集还包括驱动与嵌入式微处理器连接的 WIFI模块工作的 第三控制指令， 嵌入式微处理器接收该第三控制指令并处理， 嵌入式微处理器 向 WIFI模块发送驱动该 WIFI模块工作的第三控制指令，该 WIFI模块将工作后 的结果反馈给嵌入式微处理器， 嵌入式微处理器将其返回的结果发送给显示装 置和音频处理装置处理。
实施例 4
在实施例 1 的基础之上， 所述的车载设备还包括音频输入单元， 所述的 音频输入单元包括录音模块和音频转换芯片， 录音模块与音频转换芯片连接， 该音频转换芯片与嵌入式微处理器连接， 录音模块用于获取音频信息， 该音频 信息通过音频转换芯片转换成数字信号， 所述嵌入式微处理器获得该数字信号 并处理。
所述的控制指令集还包括驱动与嵌入式微处理器连接的音频输入单元工 作的第四控制指令， 嵌入式微处理器接收该第四控制指令并处理， 嵌入式微处 理器向音频输入单元发送驱动该音频输入单元工作的第四控制指令， 该音频输 入单元将工作后的结果反馈给嵌入式微处理器， 嵌入式微处理器将其返回的结 果发送给显示装置和音频处理装置处理。
实施例 5
在实施例 4的基础之上，所述的车载设备还包括 GSM模块，所述的 GSM 模块， 用于从网络侧下载第三数据， 并将所述第三数据发送给嵌入式微处理器 处理； 嵌入式微处理器， 用于将所述第三数据存储在电子存储装置中以及从音 频输入单元获取音频信息， 并通过所述 GSM 模块将所述音频信息发送给网络 所述的音频处理装置还包括如实施例 2所述的通道选择模块、通道开关， 所述的通道选择模块和通道开关用来处理音频信号的切换任务。
实施例 6，
在实施例 4 的基础之上， 所述的车载设备还包括蓝牙模块， 所述的蓝牙 模块与嵌入式微处理器连接， 在下行链路中， 蓝牙模块将接收到第三数据传输 给嵌入式微处理器处理， 嵌入式微处理器将所述第三数据信息存储在电子存储 装置中或发送给音频处理装置处理； 在下行链路中， 嵌入式微处理器从音频输 入单元或者电子存储装置获取第四数据， 该第四数据通过蓝牙模块发送到网络 所述的控制指令集还包括驱动与嵌入式微处理器连接的蓝牙模块工作的 第五控制指令， 嵌入式微处理器接收该第五控制指令并处理， 嵌入式微处理器 向蓝牙模块发送驱动该蓝牙模块工作的第五控制指令， 该蓝牙模块将工作后的 结果反馈给嵌入式微处理器， 嵌入式微处理器将其返回的结果发送给显示装置 和音频处理装置处理。
实施例 7
在实施例 4 的基础之上， 所述的车载设备还包括设备还包括数字电视模 块和 AM/FM收音模块， 所述的数字电视模块和 AM/FM收音模块与嵌入式微处 理器连接， 该数字电视模块受嵌入式微处理器控制并向嵌入式微处理器发送获 取的视频信号， 嵌入式微处理器获得该视频信号并处理生成第五视频数据， 该 视频数据通过嵌入式微处理器发送给显示装置处理， 该数字电视模块和 AM/FM 收音模块将所述音频信号发送给音频处理装置处理。
所述的设备还包括视频输入控制装置， 所述的视频输入单元包括一通道 开关， 用于控制输入显示装置的视频信号的来源； 还包括一通道选择模块， 用 于控制所述通道开关， 所述的通道选择模块与嵌入式微处理器连接受嵌入式微 处理器控制。
所述的控制指令集还包括驱动与嵌入式微处理器连接的数字电视模块和
AM/FM收音模块工作的第六控制指令，嵌入式微处理器接收该操控指令并处理， 嵌入式微处理器向数字电视模块和 AM/FM 收音模块发送驱动该数字电视模块 和 AM/FM收音模块工作的第六控制指令， 该数字电视模块和 AM/FM收音模块 将工作后的结果反馈给嵌入式微处理器， 嵌入式微处理器将其返回的结果发送 给显示装置和音频处理装置处理。
所述的车载设备中的数字电视模块和 AM/FM收音模块可任选其一，其功 能都是为了通过电波获得视频或者音频信号。
实施例 8
综合实施例 1 -7所有的优点， 给出一个最佳的实施例
如图 1 所示， 一种车载设备， 包括嵌入式系统、 GPS 导航模块、 WIFI 模块、 GSM模块、 数字电视模块、 蓝牙模块、 红外模块、 AM/FM 收音模块、 显示装置和音频处理装置， 所述的嵌入式系统包括嵌入式微处理器， 内存和固 态硬盘， 所述的嵌入式微处理器和内存中运行有 wince操作系统， 在该设备中 运行有 GPS导航软件、图文处理软件、播放软件以及其他娱乐软件等应用软件， 所述的 wince操作系统和应用软件存储在固态硬盘中， 所述的嵌入式微处理器 分别与获取定位信息的 GPS导航模块； 实现局域网上网功能的 WIFI模块； 实 现电话、 短信和 GPRS无线上网功能的 GSM模块； 接收数字电视信号的数字 电视模块； 实现免提功能、 电话本和手机上网功能的蓝牙模块； 和实现短距离 无线传输文件的红外模块； 接收 AM/FM短波电台的 AM/FM收音模块等功能模 块相连接， 这些功能模块从外界接收数据并处理， 将处理后的数据传输给嵌入 式微处理器处理。
本发明提供了一个没有 DVD光碟但是又能实现影音文件实时更新的一种 新的车载设备， 该设备通过嵌入式微处理器来处理视频解码以及菜单操作和界 面显示。 本发明的保护范围不仅仅局限于上述所说的实施方式， 在本发明的构 思范围内， 都属于本发明的保护范围。

Claims

1 . 一种基于嵌入式微处理器的车载设备， 包括：
存储装置， 嵌入式微处理器， 所述嵌入式微处理器与所述存储装置连接; 还包括，
与嵌入式微处理器连接的显示装置；
该嵌入式微处理器通过读取存储装置中的第一视频数据， 并将所述第一 视频数据转换成第一视频信号， 将所述第一视频信号向显示装置发送， 并通过 所述显示装置处理所述第一视频信号。
2. 根据权利要求 1所述的车载设备， 其特征在于， 所述存储装置存储有 控制指令集以及与该控制指令相关联的图文数据库， 该设备还包括操控装置， 所述操控装置与嵌入式微处理器连接， 所述操控装置控制嵌入式微处理器读取 所述存储装置存储的控制指令集， 所述嵌入式微处理器读取控制指令集中的控 制指令并将与该控制指令相关联的图文数据发送到视频显示装置显示。
3. 根据权利要求 2所述的车载设备， 其特征在于， 所述控制指令集包括 驱动嵌入式微处理器读取存储装置中第一视频数据的第一控制指令， 所述嵌入 式微处理器获取所述第一控制指令， 读取存储装置中的第一视频数据。
4. 根据权利要求 1所述的车载设备， 其特征在于， 所述存储装置为非机 械式的电子存储装置。
5. 根据权利要求 4所述的车载设备， 其特征在于， 所述的电子存储装置 包括大容量 FLASH、 固态硬盘和 SD卡中的一种或多种。
6. 根据权利要求 2所述的车载设备， 其特征在于， 该设备还包括 GPS 导航模块，所述控制指令还包括驱动 GPS模块工作的第二控制指令，所述 GPS 导航模块获取所述第二控制指令， 获取定位数据， 并将所述定位数据发送给所 述嵌入式微处理器处理， 生成定位视频信号， 该嵌入式微处理器将所述定位视 频信号发送给视频显示装置显示。
7. 根据权利要求 2所述的车载设备， 其特征在于， 该设备还包括 WIFI 模块， 用于从网络端下载第三视频数据， 所述控制指令还包括驱动 WIFI模块工 作的第三控制指令， 所述 WIFI模块获取所述第三控制指令， 获取第三视频数据 并将其发送给嵌入式微处理器， 该嵌入式微处理器将所述第三视频数据存储在 电子存储装置中或将所述第三视频数据转换为视频信号， 通过所述显示装置显
8. 根据权利要求 2所述的车载设备， 其特征在于， 该设备还包括蓝牙模 块， 所述的蓝牙模块与嵌入式微处理器连接， 蓝牙模块将接收到第四视频数据 传输给嵌入式微处理器处理， 嵌入式微处理器将所述第四视频数据信息存储在 电子存储装置中。
9. 根据权利要求 2所述的车载设备， 其特征在于， 该设备还包括 GSM 模块， 用于从网络侧下载第五视频数据， 并将所述第五视频数据发送给嵌入式 微处理器处理， 该嵌入式微处理器将所述第五视频数据存储在电子存储装置中。
10. 根据权利要求 1 所述的车载设备， 其特征在于， 该设备还包括设备 还包括数字电视模块， 用于获取电视信号， 嵌入式微处理器获得所述电视信号 发送给显示装置显示。
11 . 根据权利要求 2所述的车载设备， 其特征在于， 所述的设备还包括 视频输入控制装置， 所述的视频输入单元包括一通道开关， 用于控制输入显示 装置的视频信号的来源； 还包括一通道选择模块， 用于控制所述通道开关， 所 述的通道选择模块与嵌入式微处理器连接受嵌入式微处理器控制。
PCT/CN2009/072367 2009-04-17 2009-06-20 基于嵌入式微处理器的车载设备 WO2010118587A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200910106678 2009-04-17
CN200910106677 2009-04-17
CN200910106678.7 2009-04-17
CN200910106677.2 2009-04-17

Publications (1)

Publication Number Publication Date
WO2010118587A1 true WO2010118587A1 (zh) 2010-10-21

Family

ID=42982128

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/072367 WO2010118587A1 (zh) 2009-04-17 2009-06-20 基于嵌入式微处理器的车载设备

Country Status (1)

Country Link
WO (1) WO2010118587A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903542A (zh) * 2012-12-30 2014-07-02 比亚迪股份有限公司 一种车载嵌入式显示设备及其显示方法
CN104135710A (zh) * 2014-07-25 2014-11-05 广东翼卡车联网服务有限公司 通过双蓝牙设备实现手机与车载系统间数据交换的方法
CN111765897A (zh) * 2020-06-19 2020-10-13 深圳市点嘀互联网络有限公司 一种嵌入式设备使用车载gps信号实现定位的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1594382A (zh) * 2004-06-18 2005-03-16 中国科学院广州化学研究所 含有8－羟基喹啉金属配合物的线性共聚物及其制法和用途
US20050240691A1 (en) * 2004-04-26 2005-10-27 Alexander Yurusov Vehicle media player unit
CN1755389A (zh) * 2004-09-30 2006-04-05 佛山市顺德区瑞图万方科技有限公司 嵌入式多媒体智能gps导航装置
CN2847225Y (zh) * 2005-08-04 2006-12-13 河北工业大学 车载导航控制多媒体装置
CN201166978Y (zh) * 2007-11-27 2008-12-17 比亚迪股份有限公司 一种车载多媒体播放装置
CN101359427A (zh) * 2008-09-23 2009-02-04 北京航天智通科技有限公司 可实现多媒体播放的公交车载监控调度装置
CN101582281A (zh) * 2009-04-17 2009-11-18 深圳市美赛达科技有限公司 基于嵌入式微处理器的可视化车载设备

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050240691A1 (en) * 2004-04-26 2005-10-27 Alexander Yurusov Vehicle media player unit
CN1594382A (zh) * 2004-06-18 2005-03-16 中国科学院广州化学研究所 含有8－羟基喹啉金属配合物的线性共聚物及其制法和用途
CN1755389A (zh) * 2004-09-30 2006-04-05 佛山市顺德区瑞图万方科技有限公司 嵌入式多媒体智能gps导航装置
CN2847225Y (zh) * 2005-08-04 2006-12-13 河北工业大学 车载导航控制多媒体装置
CN201166978Y (zh) * 2007-11-27 2008-12-17 比亚迪股份有限公司 一种车载多媒体播放装置
CN101359427A (zh) * 2008-09-23 2009-02-04 北京航天智通科技有限公司 可实现多媒体播放的公交车载监控调度装置
CN101582281A (zh) * 2009-04-17 2009-11-18 深圳市美赛达科技有限公司 基于嵌入式微处理器的可视化车载设备

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
TANG YANG: "The Design of The Car Video System Based on UcLinux", CHINESE MASTER'S THESES FULL-TEXT DATABASE ENGINEERING SCIENCE AND TECHNOLOGY II, no. 1, 15 January 2009 (2009-01-15), pages C035 - 59 *
WANG CHAO ET AL.: "Scheme for realizing the transmission of in-vehicle media based on WIFI network", SCIENCE AND TECHNOLOGY INNOVATION HERALD, no. 35, December 2008 (2008-12-01), pages 14 - 16 *
WU YONG ET AL.: "Design of the Video-Compression System for Transmitting Device on Vehicle", VACUUM ELECTRONICS, no. 6, December 2006 (2006-12-01), pages 51 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103903542A (zh) * 2012-12-30 2014-07-02 比亚迪股份有限公司 一种车载嵌入式显示设备及其显示方法
CN103903542B (zh) * 2012-12-30 2017-02-01 比亚迪股份有限公司 一种车载嵌入式显示设备及其显示方法
CN104135710A (zh) * 2014-07-25 2014-11-05 广东翼卡车联网服务有限公司 通过双蓝牙设备实现手机与车载系统间数据交换的方法
CN111765897A (zh) * 2020-06-19 2020-10-13 深圳市点嘀互联网络有限公司 一种嵌入式设备使用车载gps信号实现定位的方法

Similar Documents

Publication Publication Date Title
US9558141B2 (en) System and method for accessing a user interface via a secondary device
US20110126104A1 (en) User interface for managing different formats for media files and media playback devices
EP2075719B1 (en) Content providing method, content playback method, portable wireless terminal, and content playback apparatus
US20080005440A1 (en) Streaming media cradle
JP2002186079A (ja) 非連結且つ内容のワイヤレス・ダウンロードを許容するパーソナル・オンデマンド・オーディオ・エンターテイメント装置
JP2007503671A (ja) メディア・コンテンツを記憶するポータブル装置
KR20110118613A (ko) 재생가능 콘텐츠를 관리하는 저장 디바이스
JP2002268695A (ja) リムーバブル・フェース・プレート圧縮ディジタル・ミュージック・プレイヤ
JP2008159180A (ja) コンテンツ選択再生システム、その方法および携帯型再生機制御装置
US20060030961A1 (en) Wireless streaming audio apparatus
JP2003157088A (ja) 携帯用音声／映像出力装置およびそのデータ抽出方法
WO2010118587A1 (zh) 基于嵌入式微处理器的车载设备
CN101645290A (zh) 车载多媒体娱乐设备
JP2007511182A5 (zh)
CN101460939B (zh) 移动数据存储和采集的系统和方法
CN203070759U (zh) 基于arm的车载平板电脑
JP2006217529A (ja) 画像表示システムおよび画像表示装置
CN201607940U (zh) 基于嵌入式微处理器的车载设备
JP4992726B2 (ja) 情報記録処理装置、情報記録処理方法
KR101351585B1 (ko) Ａ／ｖ 시스템과 휴대형 기기 간의 인터페이스를 위한 장치및 방법
KR101586734B1 (ko) 전원 상태에 따른 외부기기 제어 방법 및 이를 적용한 전자기기
JP2008193246A (ja) コンテンツ再生方法、携帯無線端末およびコンテンツ再生装置
JP3102772U (ja) 赤外線伝送機能を具えた音声信号再生装置
JP2017199173A (ja) コンテンツ配信装置、コンテンツ出力装置、プログラム及びコンテンツ配信システム
CN201285655Y (zh) 可实现从碟片复制文件到外置usb设备的播放器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09843221

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS (EP FORM 1205A DATED 23-03-2012)

122 Ep: pct application non-entry in european phase

Ref document number: 09843221

Country of ref document: EP

Kind code of ref document: A1