CN102314920B - Automobile multimedia navigation audio and video system - Google Patents
Automobile multimedia navigation audio and video system Download PDFInfo
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Abstract
The invention discloses a multimedia navigation audio and video system comprising a host and portable navigation equipment. The portable navigation equipment is a portable automatic navigation system. The host is a player possessing a complete audio playing function. The portable navigation equipment can connect with the host through a connector. A power amplifier on the host and a horn on the automobile can be used by the portable navigation equipment to carry out playing through the connector. The previous portable navigation equipment has the following problems: output sound volume is insufficient; tone quality is not good. By using the system of the invention, the above problems can be solved. The host can emit signals to the portable navigation equipment through the connector so as to control on-off of the portable navigation equipment. In the invention, the portable navigation equipment and the host can combine with each other or be used separately so that different demands of a user in different situations can be satisfied. By using the system of the invention, functions of an auto sound can be substantially increased. The auto sound possesses multimedia functions, such as GPS navigation, audio and video playing and the like. Therefore, the user demands for the multifunctional automobile sound can be satisfied and driving pleasure can be substantially raised.
Description
Technical field
The present invention relates to a kind of car audio system, relate in particular to a kind of automobile multimedia navigation audio-video system.
Background technology
At present, continuous upgrading along with automobile industry, the time that people are increasing for the demand of automobile, the owning rate of automobile is more and more higher, drive is more and more longer, for also increasing for the demand of driving amusement, in automobile entertainment product, automobile audio is part and parcel, the consumption that people have been upgraded to CD by deck for the demand of automobile audio product tends to, then start to pursue by the automobile audio with multimedia function, but automobile audio function at present is on the market too single, can not satisfy the demands of consumers.
Development along with car navigation device, navigator has all been installed in a lot of vehicles the inside, but playing function the imperfection of current navigator, in order to save volume and cost, often be not equipped with public address equipment and the loudspeaker that can produce larger volume, often because volume is not enough, cause missing in use voice messaging, for driving, bring certain trouble, simultaneously, the public address equipment being equipped with due to navigator can not produce larger volume, when using the multimedia function of navigator, can not meet consumer for the requirement of tonequality and audio, the recreational deficiency that causes this navigator.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of portable navigation device and automobile audio can being combined, improve audio frequency output quality, the recreational automobile multimedia navigation audio-video system of increase automobile audio of portable navigation device.
The present invention solves the technical scheme that its problem adopts:
A kind of automobile multimedia navigation audio-video system, the connector that comprises portable navigation device, main frame, connection portable navigation device and main frame, wherein portable navigation device is the portable multimedia audio-visual machine that navigates, main frame is onboard audio player, and described main frame and portable navigation device are detachable or be used in combination; Described portable navigation device comprise the central processing unit that there is multimedia and control function, the navigation module with navigation deixis, for the LCDs that shows, for drive LCDs digital lcd Drive and Control Circuit, for the portable navigation device audio output circuit of portable navigation device output audio signal, for the memory module of stored audio video information with for being connected the link block of connector; Described navigation module and central processing unit are connected, central processing unit connects with LCDs by digital lcd Drive and Control Circuit, the function that central processing unit is connected with portable navigation device audio output circuit, link block, memory module respectively and controls this module to realize; Main frame comprises the host computer control center that has audio decoder function and control function, power amplifier, for being connected the interface circuit of connector; Described host computer control center is connected with power amplifier, interface circuit respectively; Described connector is connected to link block in portable navigation device and the interface circuit in main frame removably, and portable navigation device and main frame can be communicated mutually.
Preferably, described host computer control center adopts the mountain scene AU7850 chip that can carry out MP3/WMA decoding and each module is controlled.Adopt this chip to carry out well MP3/WMA decoding, allow main frame there is complete Vehicular MP 3 player function.Portable navigator is sent to data on the audio interface AUDIO_R and AUDIO_L of main frame by the general of connector by audio interface, by this interface, voice data is reached to AU7850 chip, AU7850 chip is accepted voice data and is processed by GPA6 and CPA7 port, voice data after processing exports MP3_L and MP3_R interface to from DAC_LOUT and DAC_ROUT port, by this interface, be connected to power amplifier or audio frequency processing circuit, wherein in order to allow the more stable minimizing undesired signal of data of exporting, the circuit of DAC_LOUT and the output of DAC_ROUT port all has a branch road that is connected with 47k resistance and 102p Capacitance parallel connection, when portable navigation device is sound, from a high level of interface circuit input, this signal enters from the AU_DET interface of interface circuit, deliver to the GPD3 port of AU7850, for AU785 chip provides a signal, inform that portable navigation device will have sound to send, start data and accept initialization, the 32K_X0 of AU7850 chip and 32K_X1 end are connected with the crystal oscillating circuit that crystal oscillator frequency is 32.768KHZ, for host computer control center provides clock accurately, allow main frame can realize the function of timing and displaying time.
Preferably, described central processing unit adopts the SiRF Atlas-V with 600MHz dominant frequency, AT550 processor, this processor can be supported coding and the output of audio frequency, vision signal, picture, and can effectively control the operation of modules in portable navigator.This processor not only dominant frequency is high, and possesses audio frequency, video decode function, can effectively control the modules of portable navigation device, realizes the various functions of portable navigation device.
Preferably, portable navigation device comprises the USB/SD interface circuit for portable navigation device extension storage, this arranges and can allow portable navigation device have external memory expanded function, can connect external memory, make portable navigation device possess jumbo memory property, greatly strengthen the ability of its multimedia.
Further, described portable navigation device comprises for the portable navigation device power circuit to portable navigation device power supply and/or charging, main frame comprises for the host power supply circuit of power supply is provided to main frame, described host power supply circuit is connected with automobile power source, automobile power source can be host power supply voltage is provided, and the voltage that portable navigation device provides by connector is powered and/or charged.Automobile power source provides power supply for main frame, and main frame can be to connector output voltage, and portable navigation device can be charged by connector, portable navigation device just can be powered by main frame, needn't separately connect power supply, this design is not only easy for installation, and reliable, simple, functional good.Interface circuit comprises take the voltage stabilizing reduction voltage circuit that G5640 chip is core, and the voltage output of this circuit is connected to the 23rd and 24 pins of interface circuit, for connector provides the voltage of stable 5V, for portable navigator supply electric power and/or charging.
Further, described main frame comprises the audio frequency processing circuit for the treatment of audio-frequency information, memory interface circuit and the audio input interface of connection circumscribed USB equipment/SD card, described audio frequency processing circuit is connected with host computer control center, power amplifier, memory interface circuit is connected with host computer control center, and audio input interface is connected with audio frequency processing circuit.Audio frequency processing circuit can carry out the processing that gating, its function also comprise volume, audio to sound signal, strengthened the ability of main frame independent processing audio-frequency information, the memory interface circuit that is used for connecting USB device/SD card is by the audio file in main frame energy independent play-out peripheral hardware memory device, allow the broadcasting that main frame also can complete independently audio file, needn't rely on portable navigation device and export; Audio input interface can connect other playback equipments and carry out audio frequency broadcasting, has greatly expanded the ability of main frame audio plays.Voice data after AU7850 chip is processed exports MP3_L and MP3_R interface to from DAC_LOUT and DAC_ROUT port, MP3_L and MP3_R are connected to LIN1 end and the LIN2 end of audio frequency processing circuit, in order to remove the direct current signal of AC audio file, MP3_L and MP3_R are respectively connected in series the electric capacity of a 225p; Audio input interface comprises AUX_R and AUX_L interface, this interface connects RIN3 and the LIN3 pin of audio frequency processing circuit, sound signal exports respectively output interface LF, RF, LR and the RR of audio frequency processing circuit to from LFOUT, RFOUT, LROUT and RROUT after processing by audio frequency processing circuit, by this interface, sound signal is sent to power amplifier, after power amplifier filter amplifying processing, simulated audio signal is delivered to power amplifier output slab, can be connected car horn or other public address equipments by this panel.
Further, main frame comprises that this vehicle backing backsight module is connected with host computer control center and/or interface circuit for controlling the vehicle backing backsight module of vehicle backing backsight and vision signal input and output.Vehicle backing backsight equipment is connected to the vehicle backing backsight module in main frame by video connecting interface, by this module, the image signal transmission of vehicle backing backsight equipment is further processed to host computer control center, vision signal after processing outputs in portable navigation device by connector, make vehicle backing backsight equipment show vehicle backing backsight video by the LCDs of portable navigation device, allow user needn't buy in addition display and just can in portable navigation device, realize vehicle backing backsight function.
Further; described connector is connected with ipod equipment coupling; link block and interface circuit are connected with connector coupling, and connector comprises for the DC power interface to portable navigation device power supply, for the protection of the earth loop of portable navigation device, for detection of whether having connected the plug detection interface of portable navigation device, for detection of whether having the audio detection interface of audio frequency input and output, for the audio frequency IO interface of transmission of audio signal with for transmitting the rear video IO interface of vehicle backing backsight vision signal.Along with the continuous upgrading of electronic industry, the equipment with ipod interface is accepted and is praised highly by popular gradually, and connector adopts the connected mode with ipod equipment, can be connected with the electronic product of current main flow, connects plurality of devices; Link block is connected with connector coupling with interface circuit, because connector, link block, interface circuit are general connecting interface, allow main frame not only can connect portable navigation device, also can be connected to the equipment that other have ipod interface, portable navigation device also need not be connected on main frame, also can be connected to other equipment, make this automobile multimedia navigation audio-video system there is connected mode flexibly; In the present invention, connector can connect portable navigation device and main frame, and the information such as transmission of video, audio frequency, control signal can complementaryly be used the function of portable navigation device and main frame mutually.
Further, described main frame comprises can displaying time, the LCD display module of frequency, song, and this display module comprises LCD display and display driver; The demonstration of LCD display is controlled at host computer control center by display driver.The independent displaying time of this LCD display module energy, frequency, song, make main frame needn't just can show song information by the LCDs of portable navigation device when independent use, strengthened function when main frame uses separately.
Further, described main frame and/or portable navigation device comprise for the radio reception circuit module of radio reception and/or portable navigation radio reception module, host computer control center is connected to audio frequency processing circuit by radio reception circuit module, and portable navigation radio reception module is connected with central processing unit.This design makes main frame and/or portable navigation device have the function of radio reception, further strengthens the function of car multimedia audio-video system.
Preferably, described radio reception circuit module adopts the SI4720 digital radio module of U.S. core section.
Further, portable navigation device comprises that this multimedia broadcasting circuit and central processing unit are connected to each other for watching the multimedia broadcasting circuit of high-power S-band satellite TV signal.Multimedia broadcasting circuit can make portable navigation device have to accept the function of satellite TV signal output, allows user also can watch TV programme in running car, has greatly strengthened the amusement function of car multimedia audio-video system.
Further, central processing unit is connected with the bluetooth module circuit for Bluetooth communication.This module can realize Bluetooth communication, and the equipment that makes portable navigation device and mobile phone etc. have Bluetooth function can communicate and exchanges data, has strengthened the communication function of automobile multimedia navigation system.
Further, described portable navigation device comprises that video output circuit is connected with central processing unit for the video output circuit of external outputting video signal.Video output circuit can allow portable navigation device have the ability of vision signal output, when user need to enjoy large-size screen monitors video display function in car, needn't buy in addition player, only the output interface of video output circuit need to be connected with display screen, just can, at display screen displaying video, save the cost of user's purchase and provided with player.
The invention has the beneficial effects as follows: a kind of multimedia navigation audio-video system provided by the invention, comprise main frame and portable navigation device two large divisions, portable navigation device is portable automatic navigation system, there is navigation hint function, video display function, support MP4, RM, RMVB, AVI, VOB, DAT, 3GP, WMV, the digital broadcasting of the conventional video format such as JPG, BMP and picture browsing.Main frame is the player with complete audio playing function, not only possesses the function of audio plays, supports the digital broadcasting of MP3/WMA form, and has breakpoint memory function, and DSP individual character audio arranges, EQ function.Portable navigation device can be connected with main frame by connector, makes portable navigation device use power amplifier on main frame and the loudspeaker on car to play by connector, has solved the bad problem of the not enough tonequality of portable navigation device output sound volume in the past.Main frame can be controlled the switching on and shutting down of portable navigation device.Capable of being combined or the partition of portable navigation device of the present invention and main frame is used, to meet the different demands of user under different situations.The present invention has increased the function of automobile audio widely, makes it possess the multimedia functions such as GPS navigation, audio frequency and video broadcasting, meets the demand of user to multi-purpose vehicle(MPV) sound equipment, has improved widely Driving.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and example, the invention will be further described.
Fig. 1 is the system connection layout of automobile multimedia navigation audio-video system of the present invention.
Fig. 2 is the portable navigation device functional-block diagram of automobile multimedia navigation audio-video system of the present invention.
Fig. 3 is the main frame functional-block diagram of automobile multimedia navigation audio-video system of the present invention.
Fig. 4 is the connector functional-block diagram of automobile multimedia navigation audio-video system of the present invention.
Fig. 5 is the circuit catenation principle figure at automobile multimedia navigation audio-video system host computer control of the present invention center.
Fig. 6 is the circuit catenation principle figure of automobile multimedia navigation audio-video system host interface circuit of the present invention.
Fig. 7 is the circuit catenation principle figure of automobile multimedia navigation audio-video system audio frequency processing circuit of the present invention.
Fig. 8 is the circuit catenation principle figure of automobile multimedia navigation audio-video system power amplifier of the present invention.
Embodiment
With reference to Fig. 1-Fig. 8, a kind of multimedia navigation audio-video system of the present invention, a kind of automobile multimedia navigation audio-video system, the connector 3 that comprises portable navigation device 1, main frame 2, connection portable navigation device 1 and main frame 2, wherein portable navigation device 1 for portable multimedia navigates audio-visual machine, main frame 2 is onboard audio player, and described main frame 2 and portable navigation device 1 are detachable or be used in combination; Described portable navigation device 1 comprise the central processing unit 11 that there is multimedia and control function, the navigation module 12 with navigation deixis, for the LCDs 13 that shows, for drive LCDs 13 digital lcd Drive and Control Circuit 14, for the portable navigation device audio output circuit 15 of portable navigation device 1 output audio signal, for the memory module 16 of stored audio video information with for being connected the link block 17 of connector 3; Described navigation module 12 and central processing unit 11 are connected, central processing unit 11 connects with LCDs 13 by digital lcd Drive and Control Circuit 14, the function that central processing unit 11 is connected with portable navigation device audio output circuit 15, link block 17, memory module 16 respectively and controls this module to realize; Main frame 2 comprises the host computer control center 21 that has audio decoder function and control function, power amplifier 23, for being connected the interface circuit 25 of connector 3; Described host computer control center 21 is connected with power amplifier 23, interface circuit 25 respectively; Described connector 3 is connected to link block 17 in portable navigation device 1 and the interface circuit 25 in main frame 2 removably, and portable navigation device 1 and main frame 2 can be communicated mutually.By connector 3, allow portable navigation device 1 be connected with main frame 2, make portable navigation device 1 be connected to power amplifier 23 on main frame 2 and the loudspeaker on car are play by connector 3, solved in the past the not enough and bad problem of tonequality of portable navigation device 1 output sound volume.Main frame 2 can send to portable navigation device 1 switching on and shutting down that signal controlling is taken formula navigator 1 by connector 3, and the capable of being combined or partition of portable navigation device 1 of the present invention and main frame 2 is used, to meet the different demands of user under different situations.The present invention has increased the function of automobile audio widely, makes it possess the multimedia functions such as navigation, audio frequency and video broadcasting, meets the demand of user to multi-purpose vehicle(MPV) sound equipment, has improved widely Driving.
Preferably, described host computer control center 21 adopts the mountain scene AU7850 chip that can carry out MP3/WMA decoding and each module is controlled.Adopt this chip to carry out well MP3/WMA decoding, allow main frame 2 there is complete Vehicular MP 3 player function.Portable navigator 1 is sent to data on the audio interface AUDIO_R and AUDIO_L of main frame 2 by the general of connector 3 by audio interface, by this interface, voice data is reached to AU7850 chip, AU7850 chip is accepted voice data and is processed by GPA6 and CPA7 port, voice data after processing exports MP3_L and MP3_R interface to from DAC_LOUT and DAC_ROUT port, by this interface, be connected to power amplifier 23 or audio frequency processing circuit 22, wherein in order to allow the more stable minimizing undesired signal of data of exporting, the circuit of DAC_LOUT and the output of DAC_ROUT port all has a branch road that is connected with 47k resistance and 102p Capacitance parallel connection, when portable navigation device 1 is sound, from a high level of interface circuit 25 inputs, this signal enters from the AU_DET interface of interface circuit 25, deliver to the GPD3 port of AU7850, for AU785 chip provides a signal, inform that portable navigation device 1 will have sound to send, start data and accept initialization, the 32K_X0 of AU7850 chip and 32K_X1 end are connected with the crystal oscillating circuit that crystal oscillator frequency is 32.768KHZ, for host computer control center 21 provides clock accurately, allow main frame can realize the function of timing and displaying time.
Preferably, described central processing unit 11 adopts the SiRF Atlas-V with 600MHz dominant frequency, AT550 processor, this processor can be supported coding and the output of audio frequency, vision signal, picture, and can effectively control the operation of portable navigation device 1 interior modules.This processor not only dominant frequency is high, and possesses audio frequency, video decode function, can effectively control the modules of portable navigation device 1, realizes the various functions of portable navigation device 1.
Preferably, portable navigation device 1 comprises the USB/SD interface circuit 42 for portable navigation device 1 extension storage, this arranges and can allow portable navigation device 1 have external memory expanded function, can connect external memory, make portable navigation device 1 possess jumbo memory property, greatly strengthen the ability of its multimedia.
Further, described portable navigation device 1 comprises for the portable navigation device power circuit 18 to portable navigation device 1 power supply and/or charging, main frame 2 comprises for the host power supply circuit 26 of power supply is provided to main frame 2, described host power supply circuit 26 is connected with automobile power source, automobile power source can be main frame 2 power supplys voltage is provided, and the voltage that portable navigation device 1 provides by connector 3 is powered and/or charged.Automobile power source provides power supply for main frame 2, main frame 2 can be to connector 3 output voltages, portable navigation device 1 can be charged by connector 3, portable navigation device 1 just can be powered by main frame 2, needn't separately connect power supply, this design is not only easy for installation, and reliable, simple, functional good.Interface circuit 25 comprises take the voltage stabilizing reduction voltage circuit that G5640 chip is core, the voltage output of this circuit is connected to the 23rd and 24 pins of interface circuit 25, for connector 3 provides the voltage of stable 5V, for 1 supply electric power and/or the charging of portable navigator.
Further, described main frame 2 comprises the audio frequency processing circuit 22 for the treatment of audio-frequency information, memory interface circuit 41 and the audio input interface 44 of connection circumscribed USB equipment/SD card, described audio frequency processing circuit 22 is connected with host computer control center 21, power amplifier 23, memory interface circuit 41 is connected with host computer control center 21, and audio input interface 44 is connected with audio frequency processing circuit 22.Audio frequency processing circuit 22 can carry out the processing that gating, its function also comprise volume, audio to sound signal, strengthened the ability of main frame 2 independent processing audio-frequency informations, the memory interface circuit 41 that is used for connecting USB device/SD card allows the audio file of main frame 2 in can independent play-out peripheral hardware memory devices, allow the broadcasting that main frame 2 also can complete independently audio file, needn't rely on portable navigation device 1 and export; Audio input interface 44 can connect other playback equipments and carry out audio frequency broadcasting, has greatly expanded the ability of main frame 2 audio plays.Voice data after AU7850 chip is processed exports MP3_L and MP3_R interface to from DAC_LOUT and DAC_ROUT port, MP3_L and MP3_R are connected to LIN1 end and the LIN2 end of audio frequency processing circuit 22, in order to remove the direct current signal of AC audio file, MP3_L and MP3_R are respectively connected in series the electric capacity of a 225p; Audio input interface 24 comprises AUX_R and AUX_L interface, this interface connects RIN3 and the LIN3 pin of audio frequency processing circuit, sound signal exports respectively output interface LF, RF, LR and the RR of audio frequency processing circuit 22 to after processing by audio frequency processing circuit 22 from LFOUT, RFOUT, LROUT and RROUT, by this interface, sound signal is sent to power amplifier 23, after power amplifier 23 filter amplifying processing, simulated audio signal is delivered to power amplifier output slab, can connect car horn or other public address equipments by this panel.
Further, main frame 2 comprises that this vehicle backing backsight module 24 is connected with host computer control center 21 and/or interface circuit 25 for controlling the vehicle backing backsight module 24 of vehicle backing backsight and vision signal input and output.Vehicle backing backsight equipment is connected to the vehicle backing backsight module in main frame 2 by video connecting interface, by this module, the image signal transmission of vehicle backing backsight equipment is further processed to host computer control center 21, vision signal after processing is outputed to and is taken in formula navigator 1 by connector 3, make vehicle backing backsight equipment in the LCDs 13 by just portable navigation device, show vehicle backing backsight video, allow user needn't buy in addition display and just can in portable navigation device 1, realize vehicle backing backsight function.
Further, described connector 3 is connected with ipod equipment coupling, link block 17 is connected with connector 3 couplings with interface circuit 25, connector 3 comprises for the DC power interface 31 to portable navigation device 1 power supply, earth loop 32 for the protection of portable navigation device 1, for detection of the plug that whether has connected portable navigation device 1, detect interface 33, for detection of the audio detection interface 34 that whether has audio frequency input and output, for the audio frequency IO interface 35 of transmission of audio signal with for transmitting the rear video IO interface 36 of vehicle backing backsight vision signal.Along with the continuous upgrading of electronic industry, the equipment with ipod interface is accepted and is praised highly by popular gradually, and connector 3 adopts the connected mode with ipod equipment, can be connected with the electronic product of current main flow, connects plurality of devices; Link block 17 is connected with connector 3 couplings with interface circuit 25, because connector 3, link block 17, interface circuit 25 are general connecting interface, allow main frame 2 not only can connect portable navigation device 1, also can be connected to the equipment that other have ipod interface, portable navigation device 1 also need not be connected on main frame 2, also can be connected to other equipment, make this automobile multimedia navigation audio-video system there is connected mode flexibly; In the present invention, connector can connect portable navigation device 1 and main frame 2, and the information such as transmission of video, audio frequency, control signal can complementaryly be used the function of portable navigation device 1 and main frame 2 mutually.
Further, described main frame 2 comprises can displaying time, the LCD display module 28 of frequency, song, and this display module comprises LCD display 29 and display driver 20; The demonstration of LCD display 29 is controlled at host computer control center 21 by display driver 20.The independent displaying time of this LCD display module 28 energy, frequency, song, make main frame needn't just can show song information by the LCDs 13 of portable navigation device 1 when independent use, strengthened function when main frame 2 uses separately.
Further, described main frame 2 and/or portable navigation device 1 comprise for the radio reception circuit module 27 of radio reception and/or portable navigation radio reception module 19, host computer control center 21 is connected to audio frequency processing circuit 22 by radio reception circuit module 27, and portable navigation radio reception module 19 is connected with central processing unit 11.This design makes main frame 2 and/or portable navigation device 1 have the function of radio reception, further strengthens the function of car multimedia audio-video system.
Preferably, described radio reception circuit module 27 adopts the SI4720 digital radio module of U.S. core section.
Further, portable navigation device 1 comprises for watching the multimedia broadcasting circuit 10 of high-power S-band satellite TV signal, and this multimedia broadcasting circuit 10 is connected to each other with central processing unit 11.Multimedia broadcasting circuit 10 can make portable navigation device 1 have to accept the function of satellite TV signal output, allows user also can watch TV programme in running car, has greatly strengthened the amusement function of car multimedia audio-video system.
Further, central processing unit 11 is connected with the bluetooth module circuit 43 for Bluetooth communication.This module can realize Bluetooth communication, and the equipment that makes portable navigation device 1 and mobile phone etc. have Bluetooth function can communicate and exchanges data, has strengthened the communication function of automobile multimedia navigation system.
Further, described portable navigation device 1 comprises that video output circuit 45 is connected with central processing unit 11 for the video output circuit 45 of external outputting video signal.Video output circuit 45 can allow portable navigation device 1 have the ability of vision signal output, when user need to enjoy large-size screen monitors video display function in car, needn't buy in addition player, only the output interface of video output circuit 45 need to be connected with display screen, just can, at display screen displaying video, save the cost of user's purchase and provided with player.
The above, be preferred embodiment of the present invention, and the present invention is not limited to above-mentioned embodiment, as long as it reaches technique effect of the present invention with identical means, all should belong to protection scope of the present invention.
Claims (10)
1. an automobile multimedia navigation audio-video system, it is characterized in that: the connector (3) that comprises portable navigation device (1), main frame (2), connection portable navigation device (1) and main frame (2), wherein portable navigation device (1) for portable multimedia navigates audio-visual machine, main frame (2) is onboard audio player, and described main frame (2) and portable navigation device (1) are detachable or be used in combination;
Described portable navigation device (1) comprises the central processing unit (11) that has multimedia and control function, the navigation module (12) with navigation deixis, for the LCDs (13) showing, be used for driving the digital lcd Drive and Control Circuit (14) of LCDs (13), portable navigation device audio output circuit (15) for portable navigation device (1) output audio signal, memory module (16) for stored audio video information, with for being connected the link block (17) of connector (3),
Described navigation module (12) and central processing unit (11) are connected, central processing unit (11) connects with LCDs (13) by digital lcd Drive and Control Circuit (14), the function that central processing unit (11) is connected with portable navigation device audio output circuit (15), link block (17), memory module (16) respectively and controls this module to realize;
Main frame (2) comprises the host computer control center (21) that has audio decoder function and control function, power amplifier (23), for being connected the interface circuit (25) of connector (3);
Described host computer control center (21) is connected with power amplifier (23), interface circuit (25) respectively;
Described connector (3) is connected to link block (17) in portable navigation device (1) and the interface circuit (25) in main frame (2) removably, and portable navigation device (1) and main frame (2) can be communicated mutually.
2. a kind of automobile multimedia navigation audio-video system according to claim 1, it is characterized in that: described portable navigation device (1) comprises for the portable navigation device power circuit (18) to portable navigation device (1) power supply and/or charging, main frame (2) comprises for the host power supply circuit (26) of power supply is provided to main frame (2), described host power supply circuit (26) is connected with automobile power source, automobile power source can be main frame (2) power supply voltage is provided, the voltage that portable navigation device (1) provides by connector (3) is powered and/or charges.
3. a kind of automobile multimedia navigation audio-video system according to claim 1, it is characterized in that: described main frame (2) comprises the audio frequency processing circuit (22) for the treatment of audio-frequency information, memory interface circuit (41) and the audio input interface (44) of connection circumscribed USB equipment/SD card, described audio frequency processing circuit (22) is connected with host computer control center (21), power amplifier (23), memory interface circuit (41) is connected with host computer control center (21), and audio input interface (44) is connected with audio frequency processing circuit (22).
4. a kind of automobile multimedia navigation audio-video system according to claim 1, it is characterized in that: main frame (2) comprises that this vehicle backing backsight module (24) is connected with host computer control center (21) and/or interface circuit (25) for controlling the vehicle backing backsight module (24) of vehicle backing backsight and vision signal input and output.
5. a kind of automobile multimedia navigation audio-video system according to claim 1 and 2, it is characterized in that: described connector (3) is connected with ipod equipment coupling, link block (17) is connected with connector (3) coupling with interface circuit (25), connector (3) comprises for the DC power interface (31) to portable navigation device (1) power supply, earth loop (32) for the protection of portable navigation device (1), for detection of the plug that whether has connected portable navigation device (1), detect interface (33), for detection of the audio detection interface (34) that whether has audio frequency input and output, for the audio frequency IO interface (35) of transmission of audio signal with for transmitting the rear video IO interface (36) of vehicle backing backsight vision signal.
6. automobile multimedia navigation audio-video system according to claim 1, it is characterized in that: described main frame (2) comprises can displaying time, the LCD display module (28) of frequency, song, and this display module comprises LCD display (29) and display driver (20); The demonstration of LCD display (29) is controlled at host computer control center (21) by display driver (20).
7. automobile multimedia navigation audio-video system according to claim 3, it is characterized in that: described main frame (2) and/or portable navigation device (1) comprise for the radio reception circuit module (27) of radio reception and/or portable navigation radio reception module (19), host computer control center (21) is connected to audio frequency processing circuit (22) by radio reception circuit module (27), and portable navigation radio reception module (19) is connected with central processing unit (11).
8. automobile multimedia navigation audio-video system according to claim 1, it is characterized in that: portable navigation device (1) comprises for watching the multimedia broadcasting circuit (10) of high-power S-band satellite TV signal, this multimedia broadcasting circuit (10) is connected to each other with central processing unit (11).
9. automobile multimedia navigation audio-video system according to claim 1, is characterized in that: central processing unit (11) is connected with the bluetooth module circuit (43) for Bluetooth communication.
10. automobile multimedia navigation audio-video system according to claim 1, it is characterized in that: described portable navigation device (1) comprises that video output circuit (45) is connected with central processing unit (11) for the video output circuit (45) of external outputting video signal.
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| CN201110272463.XA CN102314920B (en) | 2011-09-15 | 2011-09-15 | Automobile multimedia navigation audio and video system |
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| CN201110272463.XA CN102314920B (en) | 2011-09-15 | 2011-09-15 | Automobile multimedia navigation audio and video system |
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| CN102314920A CN102314920A (en) | 2012-01-11 |
| CN102314920B true CN102314920B (en) | 2014-03-12 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568537A (en) * | 2012-03-01 | 2012-07-11 | 深圳市云域科技开发有限公司 | Vehicle-mounted 3G (third-generation) intelligent information terminal |
| CN102982834A (en) * | 2012-10-25 | 2013-03-20 | 延锋伟世通电子科技（上海）有限公司 | Separating type car navigation entertainment terminal system |
| CN104422453A (en) * | 2013-08-19 | 2015-03-18 | 联想移动通信科技有限公司 | Terminal device |
| CN104296772A (en) * | 2014-10-22 | 2015-01-21 | 重庆金宏汽车电子有限公司 | Sound processing circuit used for vehicle navigation system |
| CN104768041A (en) * | 2015-04-23 | 2015-07-08 | 成都中兢伟奇科技有限责任公司 | Mobile television repeater device for civilian life |
| CN110745082A (en) * | 2018-07-24 | 2020-02-04 | 上海擎感智能科技有限公司 | Remove car machine system and car |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201585236U (en) * | 2009-09-15 | 2010-09-15 | 深圳市逸游天下数码科技有限公司 | Vehicular digital multimedia playing equipment |
| CN201886768U (en) * | 2010-12-02 | 2011-06-29 | 重庆徐港电子有限公司 | Multimedia car navigation video and audio system |
| CN201910990U (en) * | 2010-11-17 | 2011-07-27 | 深圳市昂冠电子有限公司 | Vehicle-mounted equipment for navigation and audiovisual entertainment |
-
2011
- 2011-09-15 CN CN201110272463.XA patent/CN102314920B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201585236U (en) * | 2009-09-15 | 2010-09-15 | 深圳市逸游天下数码科技有限公司 | Vehicular digital multimedia playing equipment |
| CN201910990U (en) * | 2010-11-17 | 2011-07-27 | 深圳市昂冠电子有限公司 | Vehicle-mounted equipment for navigation and audiovisual entertainment |
| CN201886768U (en) * | 2010-12-02 | 2011-06-29 | 重庆徐港电子有限公司 | Multimedia car navigation video and audio system |
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