CN203870254U - Multimedia navigation system based on MCU - Google Patents
Multimedia navigation system based on MCU Download PDFInfo
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- CN203870254U CN203870254U CN201420028730.8U CN201420028730U CN203870254U CN 203870254 U CN203870254 U CN 203870254U CN 201420028730 U CN201420028730 U CN 201420028730U CN 203870254 U CN203870254 U CN 203870254U
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Abstract
The utility model discloses a multimedia navigation system based on an MCU. The system comprises an MCU processor, a display module, a multimedia module, a navigation module and a wireless network module, wherein the display module, the multimedia module, the navigation module and the wireless network module are connected to the MCU processor. The MCU processor is in electric connection with a storage, and in electric connection with the display module through a video processing chip. The display module comprises a TFT screen and a touch screen. The TFT screen is in electric connection with the video processing chip. The touch screen is in electric connection with the MCU processor. The multimedia module comprises an audio output module, an audio input module, a video module, a CD-ROM module, a radio module and a simulation television module. The navigation module comprises a GPS module in electric connection with the MCU processor. The wireless network module comprises a Bluetooth module in electric connection with the MCU processor. The MCU processor and the video processing chip are respectively used for navigation and multimedia functions, so that data processing efficiency is improved, and high quality multimedia and navigation experiences are provided for the users.
Description
Technical Field
The utility model relates to a vehicle-mounted electronic application equipment, especially a multimedia navigation system based on MCU.
Background
The multimedia GPS navigator is a brand new generation GPS navigator which can comprehensively process multimedia information such as sound, images and videos and simultaneously integrates satellite positioning, geographic information, intelligent navigation, handheld entertainment and multimedia technologies, and has the remarkable characteristics of powerful intelligent navigation, information processing, mobile audio and video and man-machine interaction.
A vehicle-mounted multimedia navigation system is a multimedia system and a navigation system which are embedded in an automobile environment for use. In-vehicle multimedia navigation products need to cope with more stringent environmental and performance requirements than hand-held personal navigation Products (PNDs). First, it exceeds the operating ambient temperature requirements of industrial products. Secondly, the strong electromagnetic interference of an ignition system, a power generation system and the like interferes with a navigation system which receives a very weak GPS signal. In addition, vibration is a problem for product requirements. Other environmental factors, such as salt spray, humidity, oil stain and the like, all put higher demands on the vehicle-mounted products.
Vehicle audio products, from radios, tape players to CD players, have undergone a gradual improvement and upgrade process for decades. When the vehicle-mounted CD is just beginning to be popularized, the vehicle-mounted product is under pressure and needs to quickly incorporate functions such as navigation, internet, even mobile computing, and the like, and various functions such as solid storage, digital compressed music, digital sound broadcasting, digital television broadcasting, and the like are continuously entering a vehicle-mounted system.
With the increasing maturity of LCD applications, automotive audio and video products have fully entered the flat panel display era. From upgrading and upgrading of instrument panels to improving of content display modes and grades, the demands of automobile products taking display as a center are really put in front of people. Among them, navigation products become automobile standard parts, which have become reality in high-end automobiles; and implementation in a normal car is also referred to as daycare.
However, the multimedia functions of the current vehicle-mounted navigation system are common, and most of the current vehicle-mounted navigation systems use a single processor to process navigation and multimedia, so that the multimedia functions and the navigation functions of the system are limited, and a user cannot consider the high-quality multimedia functions and the navigation functions. And the external interfaces are fewer, so that the user can not experience high-quality vehicle-mounted multimedia functions and navigation functions well.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is not to provide a multimedia navigation system based on MCU, which has powerful navigation functions and improves user experience, and is based on MCU processor and video processing chip to perform control and data processing of each function respectively, so that each function can be controlled well; the MCU processor processes data of the audio input module, the radio module, the extension module and the navigation module, the video processing chip is responsible for the video output module, and the MCU processor and the video processing chip process the data of the audio output module, the analog television module and the display module together, resources of the MCU processor and the video processing chip are fully utilized, and a hardware basis is provided for enriching functions of the navigation system.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a multimedia navigation system based on MCU comprises an MCU processor, a display module, a multimedia module, a navigation module and a wireless network module, wherein the display module, the multimedia module, the navigation module and the wireless network module are connected with the MCU processor; wherein,
the MCU processor is electrically connected with the storage and is electrically connected with the display module through the video processing chip;
the display module comprises a TFT screen and a touch screen, the TFT screen is electrically connected with the video processing chip, and the touch screen is electrically connected with the MCU processor;
the multimedia module comprises an audio output module, an audio input module, a video module, a CD-ROM module, a radio module and an analog television module; the audio input module is electrically connected with the wireless network module, the audio output module and the radio module are electrically connected with the MCU processor, the CD driver module and the video module are respectively and electrically connected with the video processing chip, the CD driver module is electrically connected with the audio output module, and the analog television module is electrically connected with the MCU processor, the video processing chip and the audio output module;
the navigation module comprises a GPS module, the GPS module is electrically connected with the MCU processor, and navigation audio output by the GPS module after comparison with a map data packet through the MCU processor is output through the audio output module;
the wireless network module comprises a Bluetooth module which is electrically connected with the MCU processor.
In the above technical solution, the audio output module includes an audio switcher, a sound effect processor, a power amplifier module, an audio input interface and an audio output interface; the audio switcher and the sound effect processor are respectively connected through I2The C serial bus is connected with the MCU processor, and the audio switcher is electrically connected with the sound effect processor; the power amplifier module and the audio output interface are respectively electrically connected with the sound effect processor, and the audio input interface is electrically connected with the audio switcher.
In the above technical solution, the optical drive module includes a DVD decoder, an SDRAM, a FLASH, a servo circuit and a laser head, the laser head is electrically connected to the DVD decoder through the servo circuit, the laser head is also electrically connected to the DVD decoder directly, the SDRAM and the FLASH are electrically connected to the DVD decoder, the DVD decoder is electrically connected to the video processing chip through an RGB interface, and the DVD decoder is electrically connected to the audio switcher.
In the above technical solution, the DVD decoder is electrically connected to the audio switcher.
In the above technical solution, the analog tv module is electrically connected to the MCU processor through a UART universal asynchronous transceiver transmitter, the analog tv module is electrically connected to the video processing chip through a CVBS interface, and the analog tv module is electrically connected to the audio switcher.
In the above technical solution, the audio input module includes a microphone, and the microphone is electrically connected to the bluetooth module.
In the above technical solution, the video module includes a video switcher electrically connected to the video processing chip through a CVBS interface, and the video switcher is connected to a video output interface, an AUX video input interface, and a television video input interface.
In the above technical solution, the map data packet is electrically connected to the GPS module through an SDIO interface.
In the above technical solution, the MCU module further comprises an expansion module, the expansion module comprises an AD-KEY port, and the AD-KEY port is electrically connected with the MCU processor.
In the above technical solution, the MCU processor adopts a TMP86CM49F processor, and the video processing chip adopts a T107 video processing chip.
The utility model has the advantages that: based on the MCU processor and the video processing chip, the control of each function and the data processing are respectively carried out, so that each function is well controlled; the MCU processor processes data of the audio input module, the radio module, the expansion module and the navigation module, the video processing chip is responsible for the video output module, and the MCU processor and the video processing chip together process data of the audio output module, the analog television module and the display module, and resources of the MCU processor and the video processing chip are fully utilized; the system has powerful multimedia functions, integrates audio, video, optical drives and digital televisions into a whole, and enables users to enjoy the same multimedia embodiment as the home in a car; the audio and video switcher performs high-quality conversion and data processing on the audio and video, so that a user can embody high-quality audio and video, and the video switcher can output the video to the mobile equipment of the user to provide various audio and video embodying modes for the user to select; through the analog television module, a user can watch television programs at any time.
Drawings
Fig. 1 is an electrical schematic block diagram of the MCU-based multimedia navigation system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an MCU-based multimedia navigation system includes an MCU processor, and a display module, a multimedia module, a navigation module and a wireless network module connected to the MCU processor.
The MCU processor is electrically connected with the FLASH memory through an SPI serial peripheral interface and is electrically connected with the display module through a video processing chip; preferably, the MCU processor adopts a TMP86CM49F processor, and the video processing chip adopts a T107 video processing chip. The MCU processor processes data of the audio input module, the radio module, the extension module and the navigation module, the video processing chip is responsible for the video output module, the MCU processor and the video processing chip process data of the audio output module, the analog television module and the display module together, and resources of the MCU processor and the video processing chip are fully utilized.
The display module comprises a TFT screen and a touch screen, the TFT screen is electrically connected with the video processing chip, and the touch screen is electrically connected with the MCU processor; the display module is used for displaying the multimedia module and the navigation module. The touch screen adopts a resistance touch screen or a capacitance touch screen.
The multimedia module comprises an audio output module, an audio input module, a video module, a CD-ROM module, a radio module and an analog television module; the audio input module is electrically connected with the wireless network module, the audio output module is electrically connected with the radio module and the MCU processor, the CD-ROM module and the video module are respectively electrically connected with the video processing chip, the CD-ROM module is electrically connected with the audio output module, and the analog television module is electrically connected with the MCU processor, the video processing chip and the audio output module.
The audio output module comprises an audio switcher, a sound effect processor, a power amplifier module, an AUX audio input interface and an RCA-OUT audio output interface; the audio switcher and the sound effect processor are respectively connected through I2The C serial bus is connected with the MCU processor, and the audio switcher is electrically connected with the sound effect processor; the power amplifier module and the RCA-OUT audio output interface are respectively and electrically connected with the sound effect processor, and the AUX audio input interface is electrically connected with the audio switcher. The audio output by the ARM processor, the audio output by the radio module, the audio output by the Bluetooth module, the audio output by the video module and the audio output by the analog television module are processed by the audio switcher, and then are output by the power amplifier module after being sequentially processed by the data of the sound effect processor; the mobile electronic device can also be connected through the AUX audio input interface, and the audio file of the mobile electronic device is converted into the power amplifier module to be output. The audio output interface can also be connected with external power amplifier equipment through the RCA-OUT audio output interface, and the audio is output in the external power amplifier equipment.
The audio input module comprises a microphone, the microphone is electrically connected with a Bluetooth module, and the Bluetooth module is electrically connected with the MCU processor. The microphone is a microphone with a wireless Bluetooth connection function.
The video module comprises a video switcher, the video switcher is electrically connected with the video processing chip through a CVBS interface, and the video switcher is connected with a video output interface. The inputs of the video switcher include an AUX video input and a video input of an analog television module, respectively. The video switcher is equivalent to a video matrix switcher, and is a high-performance smart matrix switching device designed for switching the display of high-resolution image signals. The multi-channel signal can be switched and transmitted to any one of the output channels from the input channel, and the output channels are independent from each other, and a plurality of high-resolution video signals can be switched to various display terminals, such as NTSC system and PAL system. Preferably, a reversing camera is further arranged and is electrically connected with the video processing chip through the CVBS interface. The reversing camera stores the image in the register after the image is processed by the video processing chip and can play the image through the display module according to the operation of a user.
The CD-ROM module comprises a DVD decoder, an SDRAM, a FLASH FLASH memory, a servo circuit and a laser head, wherein the laser head is electrically connected with the DVD decoder through the servo circuit, the laser head is also directly and electrically connected with the DVD decoder, the SDRAM and the FLASH FLASH memory are electrically connected with the DVD decoder, and the DVD decoder is electrically connected with the video processing chip through an RGB interface. Preferably, the DVD decoder is electrically connected to the audio switcher. The SDRAM is a random dynamic memory, completes decoding by matching with a DVD decoder in the decoding process, is mainly used for storing data before and after the DVD decoding in use and plays a role of buffering; the method is characterized in that internal data can be stored under the condition of power-on, and all information in the power-off is lost once the power-on is cut off.
The navigation module comprises a GPS module, the GPS module is electrically connected with the MCU processor, and navigation audio output by the GPS module after the GPS module is compared with a map data packet through the MCU processor is output through the audio output module; the positioning and driving navigation of the vehicle are realized through the GPS module. The GPS module is connected with an antenna. The GPS module is also connected with a map data packet through an SDIO interface, and the map data packet is stored in the SD card.
The wireless network module comprises a Bluetooth module which is electrically connected with the MCU processor.
Preferably, the analog television module is electrically connected with the MCU processor through a UART universal asynchronous receiving and transmitting transmitter, the analog television module is electrically connected with the video processing chip through a CVBS interface, and the analog television module is electrically connected with the audio switcher.
Preferably, the MCU module further comprises an expansion module, wherein the expansion module comprises an AD-KEY port, and the AD-KEY port is electrically connected with the MCU processor. The AD-KEY port is used for external control of the automobile on the multimedia navigation, and meets the requirements of different users.
The above embodiments are merely illustrative and not restrictive, and all equivalent changes and modifications made by the methods described in the claims are intended to be included within the scope of the present invention.
Claims (10)
1. An MCU-based multimedia navigation system, characterized in that: the system comprises an MCU processor, a display module, a multimedia module, a navigation module and a wireless network module, wherein the display module, the multimedia module, the navigation module and the wireless network module are connected with the MCU processor; wherein,
the MCU processor is electrically connected with the storage and is electrically connected with the display module through the video processing chip;
the display module comprises a TFT screen and a touch screen, the TFT screen is electrically connected with the video processing chip, and the touch screen is electrically connected with the MCU processor;
the multimedia module comprises an audio output module, an audio input module, a video module, a CD-ROM module, a radio module and an analog television module; the audio input module is electrically connected with the wireless network module, the audio output module and the radio module are electrically connected with the MCU processor, the CD driver module and the video module are respectively and electrically connected with the video processing chip, the CD driver module is electrically connected with the audio output module, and the analog television module is electrically connected with the MCU processor, the video processing chip and the audio output module;
the navigation module comprises a GPS module, the GPS module is electrically connected with the MCU processor, and navigation audio output by the GPS module after comparison with a map data packet through the MCU processor is output through the audio output module;
the wireless network module comprises a Bluetooth module which is electrically connected with the MCU processor.
2. An MCU based multimedia navigation system as defined in claim 1, wherein: the audio output module comprises an audio switcher, a sound effect processor, a power amplifier module, an audio input interface and an audio output interface; the audio switcher and the sound effect processor are respectively connected through I2The C serial bus is connected with the MCU processor, and the audio switcher is electrically connected with the sound effect processor; the power amplifier module and the audio output interface are respectively electrically connected with the sound effect processor, and the audio input interface is electrically connected with the audio switcher.
3. An MCU based multimedia navigation system as defined in claim 2, wherein: the CD-ROM module comprises a DVD decoder, an SDRAM, a FLASH, a servo circuit and a laser head, wherein the laser head is electrically connected with the DVD decoder through the servo circuit, the laser head is also directly and electrically connected with the DVD decoder, the SDRAM and the FLASH are electrically connected with the DVD decoder, the DVD decoder is electrically connected with the video processing chip through an RGB interface, and the DVD decoder is electrically connected with the audio switcher.
4. An MCU based multimedia navigation system as defined in claim 3, wherein: the DVD decoder is electrically connected with the audio switcher.
5. An MCU based multimedia navigation system as defined in claim 2, wherein: the analog television module is electrically connected with the MCU processor through a UART universal asynchronous receiving and transmitting transmitter, the analog television module is electrically connected with the video processing chip through a CVBS interface, and the analog television module is electrically connected with the audio switcher.
6. An MCU based multimedia navigation system as defined in claim 2, wherein: the audio input module comprises a microphone which is electrically connected with the Bluetooth module.
7. An MCU based multimedia navigation system as defined in claim 1, wherein: the video module comprises a video switcher, the video switcher is electrically connected with the video processing chip through a CVBS interface, and the video switcher is connected with a video output interface.
8. An MCU based multimedia navigation system as defined in claim 1, wherein: and the map data packet is electrically connected with the GPS module through an SDIO interface.
9. An MCU based multimedia navigation system as defined in claim 1, wherein: the MCU module further comprises an expansion module, wherein the expansion module comprises an AD-KEY port, and the AD-KEY port is electrically connected with the MCU processor.
10. An MCU based multimedia navigation system as defined in claim 1, wherein: the MCU processor adopts a TMP86CM49F processor, and the video processing chip adopts a T107 video processing chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028730.8U CN203870254U (en) | 2014-01-17 | 2014-01-17 | Multimedia navigation system based on MCU |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420028730.8U CN203870254U (en) | 2014-01-17 | 2014-01-17 | Multimedia navigation system based on MCU |
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| Publication Number | Publication Date |
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| CN203870254U true CN203870254U (en) | 2014-10-08 |
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| CN201420028730.8U Expired - Fee Related CN203870254U (en) | 2014-01-17 | 2014-01-17 | Multimedia navigation system based on MCU |
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Address after: 523000 Guangdong city of Dongguan province Fenggang Zhen Huang Dong Cun Xu Long Industrial City second No. 28 building A, building B Patentee after: Guangdong Kovan Beidou Electronics Co., Ltd. Address before: 523000 Guangdong city of Dongguan province Fenggang Zhen Huang Dong Cun Xu Long Industrial City second No. 28 building A, building B Patentee before: Dongguan Kovan Electronic Science & Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20190117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |