CN203799656U - Vehicle-mounted navigation system having multimedia function - Google Patents
Vehicle-mounted navigation system having multimedia function Download PDFInfo
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- CN203799656U CN203799656U CN201420029088.5U CN201420029088U CN203799656U CN 203799656 U CN203799656 U CN 203799656U CN 201420029088 U CN201420029088 U CN 201420029088U CN 203799656 U CN203799656 U CN 203799656U
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Abstract
The utility model discloses a vehicle-mounted navigation system having a multimedia function. The vehicle-mounted navigation system comprises a processor group, 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 processor group. The processor group comprises an MCU processor and an ARM processor that are interconnected electrically, the MCU processor is electrically connected with a storage device, and the display module comprises a TFT screen and a touch screen that are respectively and electrically connected with the ARM processor. The multimedia module comprises an audio frequency output module, an audio frequency input module, a video module, an optical drive module, a radio module and a television module. The navigation module comprises a GPS module which is electrically connected with the ARM processor. The wireless network module comprises a Bluetooth module, a GSM/GPRS module and a WIFI module, wherein the Bluetooth module and the WIFI module are electrically and respectively connected with the ARM processor, and the MCU processor and the ARM processor are respectively and electrically connected with the GSM/GPRS module. According to vehicle-mounted navigation system having the multimedia function, a powerful multimedia function and a navigation function are combined in the vehicle-mounted navigation system, and vehicle-mounted multimedia and navigation experience of a user can be improved.
Description
Technical field
The utility model relates to vehicle electronics application apparatus, particularly a kind of onboard navigation system with multimedia function.
Background technology
Multimedia GPS navigation instrument refers to and can carry out overall treatment to multimedia messagess such as sound, image, videos, merge the brand-new generation GPS navigation instrument of satnav, geography information, intelligent navigation, hand-held amusement, multimedia technology simultaneously, there is the distinguishing feature of powerful intelligent navigation, information processing, movable video-audio, man-machine interaction.
Vehicle multimedia navigation system is to be arranged in embedding multimedia system, the navigational system that automotive environment uses.With respect to the personal navigation product (PND) of hand-held, environment and performance requirement that the reply of vehicle multimedia navigation product needed is more harsh.First, be the operating ambient temperature requirement that exceedes industrial products.Secondly be, the strong electromagnetic such as firing system, electricity generation system to receiving the interference of navigational system of atomic weak gps signal.In addition, vibrations are also difficult problems for the requirement of product.Other all propose requirements at the higher level to vehicle-mounted product as environmental factors such as salt fog, humidity, greasy dirts.
Vehicle audio product, from radio, magnetic tape station to CD player, has experienced gradual perfection and the lifting process of many decades.Vehicle-mounted CD just started universal in, vehicle-mounted product has just faced navigation, internet, pressure and actual needs that even the function such as mobile computing is included in fast, and solid stores and the various functions such as digital compression music, digital Audio Broadcasting and digital television broadcasting constantly enter onboard system.
Along with reaching its maturity of LCD application, car audio product enters the flat pannel display epoch comprehensively.From the upgrading of panel board, to the lifting of content display mode and class, the automobile product demand of Monitor-centric' is really put in face of us.Wherein, navigation product becomes automobile standard configuration parts, in high-end automobile, comes true; And realization in general-utility car is also within sight.
But, current onboard navigation system, its multimedia function is more general, and great majority are to process navigation and multimedia with uniprocessor, this is all restricted the multimedia function of system and navigation feature, makes user can not take into account high-quality multimedia function and navigation feature.And external interface is fewer can not make user experience well high-quality vehicle mounted multimedia function and navigation feature.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, provides a kind of multimedia, navigation feature powerful and improve the onboard navigation system with multimedia function that user experiences.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of onboard navigation system with multimedia function, comprises processor group and connect display module, multi-media module, navigation module and the wireless network module of this processor group; Wherein,
Described processor group comprises MCU processor and the arm processor of mutual electrical connection, described MCU processor electrical connection reservoir;
Described display module comprises TFT screen and touch-screen, is electrically connected respectively with described arm processor;
Described multi-media module comprises audio frequency output module, audio frequency load module, video module, CD-ROM module, radio receiver module and television module; This audio frequency load module is electrically connected with described wireless network module, this video module is electrically connected with described arm processor, this audio frequency load module and video module are electrically connected described arm processor, this CD-ROM module is electrically connected with described MCU processor, this CD-ROM module is electrically connected with arm processor, and this television module is electrically connected with described arm processor;
Described navigation module comprises GPS module, and this GPS module is electrically connected with described arm processor, and the navigating audio that this GPS module is exported after comparing with map datum bag by described arm processor is exported through described audio frequency output module;
Described wireless network module comprises bluetooth module, GSM/GPRS module and WIFI module, and this bluetooth module and WIFI module are electrically connected with described arm processor respectively, and described MCU processor and arm processor are electrically connected with this GSM/GPRS module respectively.
In technique scheme, described audio frequency output module comprises audio switch, SRS sound effect processor, operational amplifier, power amplifier module, audio input interface and audio output interface; Described audio switch and SRS sound effect processor pass through respectively I
2c universal serial bus connects MCU processor, and this audio switch is electrically connected by LR connecting line with SRS sound effect processor; This power amplifier module and audio output interface are electrically connected with SRS sound effect processor respectively by described operational amplifier, and described audio input interface is electrically connected with audio switch by LR connecting line.
In technique scheme, described audio frequency load module comprises de-noising circuit and microphone, this microphone is electrically connected with de-noising circuit, this bluetooth module is electrically connected with described arm processor by UART universal asynchronous receiving-transmitting transmitter, and the audio frequency of exporting by this bluetooth module is exported through described audio switch.
In technique scheme, described video module comprises video switcher, and this video switcher is electrically connected with described arm processor by CVBS interface, and this video switcher is connected with video output interface.
In technique scheme, described CD-ROM module comprises DVD demoder, SDRAM, FLASH, servo circuit, laser head and the virtual disc player that changes, this laser head is electrically connected with DVD demoder by servo circuit, this laser head is also directly electrically connected with DVD demoder, this SDRAM and FLASH electrical connection DVD demoder, this DVD demoder is electrically connected with described MCU processor, this DVD demoder is electrically connected with described arm processor by rgb interface, and this virtual disc player that changes is electrically connected with described DVD demoder by USB interface.
In technique scheme, described DVD demoder is electrically connected with audio switch by LR connecting line.
In technique scheme, described television module is connected with receiving antenna, and this television module is electrically connected with described arm processor by UART universal asynchronous receiving-transmitting transmitter, the audio frequency of this television module output is exported by described audio switch, and the video of this television module output is processed output through described video switcher by described arm processor processes and displays to display module simultaneously.
In technique scheme, described arm processor connects external map datum bag by SDIO interface.
In technique scheme, also comprise expansion module, this expansion module comprises AD-KEY port, CAN-UART converter, USB interface and SD interface, this AD-KEY port is electrically connected with described MCU processor, and this CAN-UART converter is electrically connected with described MCU processor by UART universal asynchronous receiving-transmitting transmitter.
In technique scheme, described MCU processor adopting MCU91FU62 processor, described arm processor adopts Telechips 8902 processors.
The beneficial effects of the utility model are: utilize arm processor and MCU processor to carry out respectively the control of each function and the processing of data, each function is well controlled; Its powerful video playback capability of Telechips 8902 processors has benefited from its powerful video data processing power, for multimedia function of the present utility model provides powerful backing; Powerful multimedia function, integrates audio frequency and video, CD-ROM drive and Digital Television, makes user in car, also can enjoy with the same multimedia of family and embodies; But also be provided with SRS sound effect processor and video switcher carries out high-quality conversion and data processing to audio frequency and video, make user can embody high-quality audio frequency and video, can also pass through the mobile device of analog video switch output video user, provide multiple audio frequency and video to embody mode and select to user; Can carry out the download of information and upload with background server by GSM/GPRS module and WIFI module.
Brief description of the drawings
Fig. 1 is the electrical principle block scheme of a kind of onboard navigation system with multimedia function of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of onboard navigation system with multimedia function, comprises processor group and connects display module, multi-media module, navigation module and the wireless network module of this processor group.
Wherein, processor group comprises that MCU processor is electrically connected with FLASH reservoir by SPI Serial Peripheral Interface (SPI) by UART universal asynchronous receiving-transmitting transmitter MCU processor and the arm processor of electrical connection mutually; Preferably, this MCU processor adopting MCU91FU62 processor, arm processor adopts Telechips 8902 processors.Telechips TCC8902 processor adopting ARM11 framework, 65nm technique is manufactured, dominant frequency reaches 600MHz, also added hardware 3D figure accelerating module compared with previous crops TCC8901, this chip is with a more powerful 3D accelerator, therefore the icon effects of various dynamic 3D also can finely be supported, especially more outstanding with performance in the support of Flash; And support DDRII 800 internal memories, the W-response speed of embedded system is further promoted.Aspect video, do not rely on CPU, configuration be that ARM Mali-VE6 subsystem completes separately video decode, be the maximum chip of a support 1080P form.MCU processor and arm processor are separately processed the function of display module, multi-media module, navigation module and wireless network module, improve the processing power of data and reduce the data processing load of processor, energy-conservation and efficient aspect have obvious effect.
Display module comprises TFT screen and touch-screen, is electrically connected respectively with arm processor; For the demonstration of multi-media module and navigation module.Touch-screen adopts electric resistance touch screen or capacitance touch screen.
Multi-media module comprises audio frequency output module, audio frequency load module, video module, CD-ROM module, radio receiver module and television module; This audio frequency output module and radio receiver module electrical connection MCU processor, this audio frequency load module is electrically connected with described wireless network module, this video module is electrically connected with described arm processor, this CD-ROM module is electrically connected with MCU processor, this CD-ROM module is electrically connected with arm processor, and this television module is electrically connected with arm processor by UART universal asynchronous receiving-transmitting transmitter and CVBS interface respectively.
Wherein, audio frequency output module comprises audio switch, SRS sound effect processor, operational amplifier, power amplifier module, AUX audio input interface and RCA-OUT audio output interface; Audio switch and SRS sound effect processor pass through respectively I
2c universal serial bus connects MCU processor, and this audio switch is electrically connected by LR connecting line with SRS sound effect processor; Power amplifier module and RCA-OUT audio output interface are electrically connected with SRS sound effect processor by operational amplifier respectively, and AUX audio input interface is electrically connected with audio switch by LR connecting line.GPS module is through audio frequency, the audio frequency of exporting by bluetooth module, the audio frequency of exporting by video module of the audio frequency of arm processor output, radio receiver module output and the audio frequency exported by television module all through the processing of audio switch, and 0 exports by power amplifier module more successively after the data processing of SRS sound effect processor and operational amplifier; Also can connect mobile electronic device by AUX audio input interface, transfer the audio file of mobile electronic device to this power amplifier module output.Also can connect external power amplifying device by RCA-OUT audio output interface, audio frequency is exported in external power amplifying device.
Audio frequency load module comprises de-noising circuit and microphone, and this microphone is electrically connected with de-noising circuit, and this bluetooth module is electrically connected with arm processor by UART universal asynchronous receiving-transmitting transmitter.This microphone is the microphone that possesses wireless blue tooth linkage function.De-noising circuit can carry out shaping filter to voice data by wave-shaping filter and eliminate noise.Microphone is wire microphone, is electrically connected with de-noising circuit.Microphone is also electrically connected with GSM/GPRS module, can engage in the dialogue and exchange with the staff of background service end, so that obtain up-to-date transport information or vehicle condition report.
Video module comprises video switcher, and this video switcher is electrically connected with described arm processor by CVBS interface, and this video switcher is connected with video output interface.The input of this video switcher comprises respectively the video input of AUX video input, television module and the video input of DVD demoder.This video switcher is equivalent to video matrix switcher, is to switch for the demonstration of high resolution graphics image signal the high-performance intelligence matrix switch equipment designing.Multiple signals can be switched on the arbitrary passage being transported to output channel from input channel, and independent of one another between output channel, can switch the vision signal of multiple High Resolution to various display terminal, as TSC-system formula and pal mode.Preferably, be also provided with backup camera, this backup camera is electrically connected with arm processor by CVBS interface.
CD-ROM module comprises DVD demoder, SDRAM, FLASH flash memory, servo circuit, laser head and the virtual disc player that changes, this laser head is electrically connected with DVD demoder by servo circuit, this laser head is also directly electrically connected with DVD demoder, this SDRAM and FLASH flash memory electrical connection DVD demoder, this DVD demoder is electrically connected with described arm processor by rgb interface, and this virtual disc player that changes is electrically connected with DVD demoder by USB interface.Preferably, DVD demoder is electrically connected with audio switch by LR connecting line.This virtual disc player that changes, it is for specific vehicle-mounted audio host, utilize domestic use USB memory device (as camera memory, portable hard drive, USB flash disk formula MP3 etc. such as USB flash disk, USB card reader+whole SD, CF, MS) widely, the mp3 file decoding of upper storage is also directly inputted main system of audio by sound signal, can also switch catalogue and song with former Main Engine control.It uses the top MP3 decoding chip of special 24BIT, possess the handling of the identical tonequality of vehicle-mounted compact disc changer and safe and convenient, and the while is removed the worry of all sources of sound aspect from, and price is lower than the USB flash disk formula MP3 of commercially available all true 24BIT decodings (PHILIPS scheme).SDRAM is stochastic and dynamic storer, and it coordinates DVD demoder to complete decoding in decode procedure, is in use mainly used to store the data of DVD decoding front and back, plays buffer action; The inner all information of power-off is characterized in that internal data can be preserved the in the situation that of energising, once all can be lost.
Navigation module comprises GPS module, and this GPS module is electrically connected with arm processor; The navigating audio that this GPS module is exported by described arm processor is exported through described audio frequency output module; Realize location and the traffic navigation of vehicle by GPS module.This GPS module is connected with antenna.
Wireless network module comprises bluetooth module, GSM/GPRS module and WIFI module, and this bluetooth module and WIFI module are electrically connected with arm processor respectively, and MCU processor and arm processor are electrically connected with this GSM/GPRS module respectively.This bluetooth module is electrically connected with arm processor by UART universal asynchronous receiving-transmitting transmitter.This GSM/GPRS module is electrically connected with MCU processor by UART universal asynchronous receiving-transmitting transmitter, and this GSM/GPRS module is electrically connected with MCU processor by USB interface.The audio frequency of exporting by this bluetooth module is exported through described audio switch.This GSM/GPRS module can be to realize wireless network by the network of telecommunications, movement or UNICOM to connect, and GSM/GPRS module is responsible for above data to send in time the information desk of appointment, can receive and dispatch the inquiry such as note and violation information and train time.Also can be undertaken that phone is dialed and short message receiving-transmitting by being arranged on Android system in arm processor and audio frequency load module and audio frequency output module, be equivalent to the function of mobile phone.This WIFI module is electrically connected with arm processor by USB interface, and utilizes Android system that WIFI hotspot can be set, and shared network is to user's wireless mobile electronic equipment.
Preferably, television module is connected with receiving antenna, and this television module is electrically connected with arm processor by UART universal asynchronous receiving-transmitting transmitter.The audio frequency of this television module output is exported by described audio switch, and the video of this television module output is processed output through described video switcher by described arm processor processes and displays to display module simultaneously.
Preferably, described map datum bag is electrically connected with described arm processor by SDIO interface.This map datum bag is stored in SD card.
Preferably, also comprise expansion module, this expansion module comprises AD-KEY port, CAN-UART converter, USB interface and SD interface, and this AD-KEY port is electrically connected with MCU processor, and this CAN-UART converter is electrically connected with described MCU processor by UART universal asynchronous receiving-transmitting transmitter.This AD-KEY port is the external control to the navigation of this multimedia for automobile, meets the demand of different user.This CAN-UART converter is the chip that CAN bus protocol converts UART agreement to.USB interface and SD interface are electrically connected with arm processor respectively.
Above embodiment is just explanation instead of restriction the utility model, and the equivalence of doing according to the method described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (10)
1. an onboard navigation system with multimedia function, is characterized in that: comprise processor group and connect display module, multi-media module, navigation module and the wireless network module of this processor group; Wherein,
Described processor group comprises MCU processor and the arm processor of mutual electrical connection, described MCU processor electrical connection reservoir;
Described display module comprises TFT screen and touch-screen, is electrically connected respectively with described arm processor;
Described multi-media module comprises audio frequency output module, audio frequency load module, video module, CD-ROM module, radio receiver module and television module; This audio frequency load module is electrically connected with described wireless network module, this video module is electrically connected with described arm processor, this audio frequency load module and video module are electrically connected described arm processor, this CD-ROM module is electrically connected with described MCU processor, this CD-ROM module is electrically connected with arm processor, and this television module is electrically connected with described arm processor;
Described navigation module comprises GPS module, and this GPS module is electrically connected with described arm processor, and the navigating audio that this GPS module is exported after comparing with map datum bag by described arm processor is exported through described audio frequency output module;
Described wireless network module comprises bluetooth module, GSM/GPRS module and WIFI module, and this bluetooth module and WIFI module are electrically connected with described arm processor respectively, and described MCU processor and arm processor are electrically connected with this GSM/GPRS module respectively.
2. a kind of onboard navigation system with multimedia function according to claim 1, is characterized in that: described audio frequency output module comprises audio switch, SRS sound effect processor, operational amplifier, power amplifier module, audio input interface and audio output interface; Described audio switch and SRS sound effect processor pass through respectively I
2c universal serial bus connects MCU processor, and this audio switch is electrically connected by LR connecting line with SRS sound effect processor; This power amplifier module and audio output interface are electrically connected with SRS sound effect processor respectively by described operational amplifier, and described audio input interface is electrically connected with audio switch by LR connecting line.
3. a kind of onboard navigation system with multimedia function according to claim 2, it is characterized in that: described audio frequency load module comprises de-noising circuit and microphone, this microphone is electrically connected with de-noising circuit, this bluetooth module is electrically connected with described arm processor by UART universal asynchronous receiving-transmitting transmitter, and the audio frequency of exporting by this bluetooth module is exported through described audio switch.
4. a kind of onboard navigation system with multimedia function according to claim 2, it is characterized in that: described video module comprises video switcher, this video switcher is electrically connected with described arm processor by CVBS interface, and this video switcher is connected with video output interface.
5. a kind of onboard navigation system with multimedia function according to claim 4, it is characterized in that: described CD-ROM module comprises DVD demoder, SDRAM, FLASH, servo circuit, laser head and the virtual disc player that changes, this laser head is electrically connected with DVD demoder by servo circuit, this laser head is also directly electrically connected with DVD demoder, this SDRAM and FLASH electrical connection DVD demoder, this DVD demoder is electrically connected with described MCU processor, this DVD demoder is electrically connected with described arm processor by rgb interface, this virtual disc player that changes is electrically connected with described DVD demoder by USB interface.
6. a kind of onboard navigation system with multimedia function according to claim 5, is characterized in that: described DVD demoder is electrically connected with audio switch by LR connecting line.
7. a kind of onboard navigation system with multimedia function according to claim 4, it is characterized in that: described television module is connected with receiving antenna, and this television module is electrically connected with described arm processor by UART universal asynchronous receiving-transmitting transmitter, the audio frequency of this television module output is exported by described audio switch, and the video of this television module output is processed output through described video switcher by described arm processor processes and displays to display module simultaneously.
8. a kind of onboard navigation system with multimedia function according to claim 1, is characterized in that: described map datum bag is electrically connected with described arm processor by SDIO interface.
9. a kind of onboard navigation system with multimedia function according to claim 1, it is characterized in that: also comprise expansion module, this expansion module comprises AD-KEY port, CAN-UART converter, USB interface and SD interface, this AD-KEY port is electrically connected with described MCU processor, and this CAN-UART converter is electrically connected with described MCU processor by UART universal asynchronous receiving-transmitting transmitter.
10. a kind of onboard navigation system with multimedia function according to claim 1, is characterized in that: described MCU processor adopting MCU91FU62 processor, described arm processor adopts Telechips 8902 processors.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420029088.5U CN203799656U (en) | 2014-01-17 | 2014-01-17 | Vehicle-mounted navigation system having multimedia function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420029088.5U CN203799656U (en) | 2014-01-17 | 2014-01-17 | Vehicle-mounted navigation system having multimedia function |
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| CN203799656U true CN203799656U (en) | 2014-08-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225684A (en) * | 2015-08-19 | 2016-01-06 | 贺中义 | A kind of method listening to transport information or navigation information when broadcast listening |
| CN108519868A (en) * | 2018-03-28 | 2018-09-11 | 广州凌飞电子科技有限公司 | A kind of usb audio expander |
-
2014
- 2014-01-17 CN CN201420029088.5U patent/CN203799656U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105225684A (en) * | 2015-08-19 | 2016-01-06 | 贺中义 | A kind of method listening to transport information or navigation information when broadcast listening |
| CN105225684B (en) * | 2015-08-19 | 2018-02-09 | 上海创单电子科技有限公司 | It is a kind of that transport information or the method for navigation information are listened in broadcast listening |
| CN108519868A (en) * | 2018-03-28 | 2018-09-11 | 广州凌飞电子科技有限公司 | A kind of usb audio expander |
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| CP01 | Change in the name or title of a patent holder |
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: 20140827 Termination date: 20190117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |