CN201476792U - Vehicular GPS navigation board and vehicular DVD system - Google Patents
Vehicular GPS navigation board and vehicular DVD system Download PDFInfo
- Publication number
- CN201476792U CN201476792U CN2009201347517U CN200920134751U CN201476792U CN 201476792 U CN201476792 U CN 201476792U CN 2009201347517 U CN2009201347517 U CN 2009201347517U CN 200920134751 U CN200920134751 U CN 200920134751U CN 201476792 U CN201476792 U CN 201476792U
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- gps navigation
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- central processing
- car borne
- navigation plate
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Abstract
The utility model discloses a vehicular GPS navigation board and a vehicular DVD system. The vehicular GPS navigation board comprises a power supply circuit, a CPU, a memory, a GPS module, a host communication interface, an audio DA converter, a video encoder and a CMMB module, wherein the CMMB module receives the radio signal and demodulates to the TS flow to transmit to the CPU, the CPU performs data processing, the decoded audio data are output from an audio output interface after being DA converted by the audio DA converter, and the video data are output from a video output interface after being encoded by the video encoder. The utility model can provide all-around video, audio and comprehensive information services, integrates the functions of information, multimedia entertainment and navigation on one machine, improves the performance-price ratio of the product and has small volume of the product, convenient use and strong function.
Description
[technical field]
The utility model relates to auto navigation, Infotainment field, relates in particular to a kind of car borne GPS navigation plate and vehicle-carrying DVD system.
[background technology]
Along with expanding economy, the closeness of network of highways and the quantity of automobile are in continuous increase, and for convenience of driver driving, the GPS GPS is extensively applied to transportation industry; CMMB (China Mobile Multimedia Broadcasting) is the mobile multimedia broadcast television technology by government broadcasting film television general bureau, it is the system of first cover of domestic independent research towards mobile phone, PDA, the multiple portable terminal of notebook computer, can be portable terminal omnibearing video, audio frequency and integrated information service are provided.Except broadcast TV program, CMMB can also provide stock information, traffic information, transport information, the polytype information of Weather information and classified information, and the development in future space is very wide.For guaranteeing safe driving, popularizing that on-vehicle Bluetooth is hands-free has been trend of the times.TMC (Traffic Message Channel) Traffic Message Channel is a digital encoding system.TMC can produce continuous transport information stream, as traffic congestion or accident, can report the site of an accident and time result, and information has comprised the traffic in certain territorial scope.TMC information and digital map navigation are combined, improved the accuracy of automobile navigation the place ahead road condition predicting.This technology is popularized in Europe at present, and domestic also existing part city begins to pilot, and believing to become the standard configuration of GPS and vehicle carried video function the foreseeable future.Vehicle-mounted speed limit prior-warning device can remind driver safety to drive, and prevents not yet donely and violating the regulations because of the location, is a kind of good driving aid.Under the situation that the market demand constantly develops, the multifunctional product of exploitation tool navigation simultaneously and Infotainment has become the research topic of more and more being paid close attention to.
The vehicle-carrying DVD system is to be the system of core with 51 single-chip microcomputers, increases function and implements the cost height, and difficulty is big, and the R﹠D cycle is long, such as increasing the GPS function, must add a GPS navigation plate; Increase Bluetooth function, must add a bluetooth module, and the man machine operation interface dullness, be difficult to realize phonebook function; Increase the CMMB function, then not only need to increase the CMMB receiver module, also need the special chip decoding of a costliness.Existing navigation panel function singleness does not make full use of the ARM resource, adopts traditional scheme to realize, cost height then, and weak effect (degrees of fusion is low, and user experience is bad) takes up space, and it is big to implement difficulty equally.
[summary of the invention]
The technical problems to be solved in the utility model provides the car borne GPS navigation plate of a kind of while tool navigation and Infotainment function.
Another technical matters to be solved in the utility model provides the multifunctional vehicle mounted dvd system of a kind of while tool navigation and Infotainment function.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of car borne GPS navigation plate, comprising that feed circuit, central processing unit, storer, GPS module, host communication interface, audio frequency DA converter, video encoder and CMMB module, described CMMB module receive radio signals and be demodulated into TS stream flows to central processing unit, and central processing unit carries out data processing, decoded voice data is exported from audio output interface after audio frequency DA converter DA conversion; Video data is exported from video output interface after with video encoder encodes.
Above-described car borne GPS navigation plate comprises bluetooth module, and described bluetooth module connects central processing unit, receives or send Bluetooth signal under the control of central processing unit.
Above-described car borne GPS navigation plate comprises the TMC receiver module, and described TMC receiver module receives the TMC wireless signal, handles flowing to central processing unit after the demodulation of TMC wireless signal.
Above-described car borne GPS navigation plate comprises vehicle-mounted speed limit early warning receiver module, and described vehicle-mounted speed limit early warning receiver module is connected with central processing unit, transmits vehicle-mounted speed limit early warning information to central processing unit.
Above-described car borne GPS navigation plate comprises touch-screen input interface and/or infrared remote control interface, and described touch-screen input interface external touch is to the input signal of central processing unit transmission touch-screen; Described infrared remote control interface connects central processing unit, transmits the infrared control signal of external remote to central processing unit.
Above-described car borne GPS navigation plate comprises the SD card that is connected with central processing unit, and described SD card is in order to connect the SD card.
Above-described car borne GPS navigation plate comprises the USB interface that is connected with central processing unit, and described USB interface is used for connecing USB device.
Above-described car borne GPS navigation plate comprises the control end that connects feed circuit with the power supply control output end of central processing unit, and feed circuit are realized time-delay pass electric work energy under central processing unit control.
The technical scheme of a kind of vehicle-carrying DVD system is, comprise DVD mainboard, LCDs and car borne GPS navigation plate, described car borne GPS navigation plate is the described car borne GPS navigation plate of arbitrary claim in the claim 1 to 8, the host communication interface of car borne GPS navigation plate connects the microprocessor of DVD mainboard, the audio output interface of car borne GPS navigation plate connects the audio input interface of DVD mainboard, and the video output interface of car borne GPS navigation plate connects the video input interface of LCDs.
Above-described vehicle-carrying DVD system, described car borne GPS navigation plate comprises the touch-screen input interface, described LCDs is a liquid crystal touch screen, and car borne GPS navigation plate touch-screen input interface connects the output interface of liquid crystal touch screen, transmits the input signal of touch-screen to central processing unit.
CMMB module that the utility model car borne GPS navigation plate is integrated, omnibearing video, audio frequency and integrated information service can be provided, the utility model is integrated in functions such as information, multimedia recreation and navigation on the all-in-one, improved the product price ratio, small product size is small and exquisite, easy to use, powerful.
[description of drawings]
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the theory diagram of the utility model embodiment car borne GPS navigation plate.
Fig. 2 is the theory diagram of the utility model embodiment vehicle-carrying DVD system.
Fig. 3 is the software architecture figure of the utility model embodiment car borne GPS navigation plate.
[embodiment]
As shown in Figure 1, for the car borne GPS navigation plate of the utility model embodiment comprises: central processing unit (CPU), DDR storer, flash memory, GPS module, CMMB receiver module, bluetooth module, TMC receiver module, vehicle-mounted speed limit early warning receiver module, feed circuit, audio frequency DA converter, video encoder and some interfaces.CPU respectively with storer, flash memory, GPS module, CMMB receiver module, bluetooth module, TMC receiver module, vehicle-mounted speed limit early warning receiver module, audio frequency DA converter are connected with video encoder.
CPU is used for data processing, adopts ARM9 or above model, and preferred CPU model is S3C2450XH.CPU is used for data processing, and the DDR storer is used to store navigation map information, and flash memory is used for storing the data that CPU will handle temporarily.The GPS module is used to receive from the next latitude and longitude information of satellite transmission, and the navigation map in GPS module and the DDR storer carries out data interaction by CPU and handles and realize navigation feature.Be demodulated into TS stream after the CMMB receiver module receives aerial radio signal and give CPU and carry out data processing, decoded voice data is exported from audio interface after audio frequency DA converter DA conversion; Video data is exported from video interface after with video encoder encodes.The TMC receiver module receives aerial TMC electric wave signal, demodulates information is gone out the back give CPU by serial ports.Vehicle-mounted speed limit early warning receiver module transmits vehicle-mounted speed limit early warning information to central processing unit.The control end of feed circuit is connected with the power supply control output end of central processing unit, and feed circuit are realized time-delay pass electric work energy under central processing unit control.
Audio frequency DA converter is responsible for the digital audio and video signals of CPU is converted into simulated audio signal output.Video encoder is responsible for the digital video signal of CPU is converted into analog video signal output.
The bluetooth module of present embodiment car borne GPS navigation plate can be realized hand-free call by CPU control, thus guarantee driving safety.Can also play the music in the mobile phone, utilize the A2DP function of bluetooth module that music is passed to vehicle audio, the high-fidelity playing back music promotes and drives pleasant sensation.
The interface of the car borne GPS navigation plate of present embodiment comprises two groups of SD/MMC card, analog video signal output interface, audio signal output interface, four-wire resistance type touch screen input interface, communication serial port, power interface, USB interface and infrared remote control interface.
Touch-screen input interface external touch is to the input signal of central processing unit transmission touch-screen.The infrared remote control interface connects central processing unit, transmits the infrared control signal of external remote to central processing unit.
Two SD/MMC card can be chosen one wantonly and insert CMMB CA kilocalorie with the watching encrypted program.
Communication serial port links to each other with CPU, is used for the communication of CPU with host microprocessors.
The USB interface that communicates to connect with CPU can be used for expanding multiple function, as connecting mouse, joystick, wireless Trackpad, wireless Internet card etc.
As shown in Figure 2, the vehicle-carrying DVD system of present embodiment comprises DVD mainboard, liquid crystal touch screen and previously described car borne GPS navigation plate, and touch-screen is a four-wire resistance type touch screen, has hand-write input function.The host communication interface of car borne GPS navigation plate connects the microprocessor of DVD mainboard, and the audio output interface of car borne GPS navigation plate connects the audio input interface of DVD mainboard, and the video output interface of car borne GPS navigation plate connects the video input interface of LCDs.Car borne GPS navigation plate touch-screen input interface connects the output interface of liquid crystal touch screen, transmits the input signal of touch-screen to central processing unit.
The CPU of present embodiment operates based on the operating system platform of WINDOWS CE5.0 or above version.The power source voltage scope is 1.3V-18V.
The utility model embodiment car borne GPS navigation plate functional software framework is with reference to figure 3.Software adopts three layers of software architecture, and boot is that boot is responsible for setting some important system parameters and the image of will starting shooting when starting loads and moves.OS is an operating system, is the operation platform of application program.APP is an application software, contains friendly interactive operation interface and funtion part.
When the user carries out the navigation feature operation, pass through (infrared mouthful of touch-screen by the user, or serial ports) to by by CPU input navigation instruction, the GPS module is used for receiving satellite signal, and the gps signal that receives is converted to latitude and longitude information, pass to CPU, CPU compares the navigation map of storing in this latitude and longitude information and the DDR storer, the topological expression of every route of the destination that current location of determining and user determine is optimized investigation through data processing to each node and element characteristics, every route is through after the recurrence repeatedly, just make comparison, obtain optimized path planning, then to audio frequency DA converter and video encoder transmission signals, Voice ﹠ Video is delivered to display screen that the outside connects and audio parts by interface and with the form of image and sound the track route of the best is shown and report to the user.If post the TMC receiver module simultaneously on the plate, there is the TMC signal region, and the map support, and then TMC information also will be calculated during navigation at path planning, as traffic congestion or accident, plans new optimal path automatically again.
When the user carries out communication, pass through touch-screen or mobile phone incoming traffic number by the user at the bluetooth interactive interface, CPU calls corresponding program by online mobile phone dialing phone or incoming call answering, and sound is delivered to car audio system.
When the user carries out other application, the user can pass through touch-screen, telepilot or serial ports and send instruction to CPU, CPU calls corresponding program and system resource, enable corresponding assembly as required, need see Digital Television as the user, send request by touch-screen or telepilot to CPU, CPU analyzes the back to instruction and starts the CMMB receiver module, accessing player from the DDR storer plays, again data processed is transmitted audio frequency DA converter and video encoder, the mode of data with signal played out.Other application also can be e-book, recreation or music etc.
The beneficial effects of the utility model are: information, multimedia and navigation are integrated on the all-in-one, have improved cost performance, volume is small and exquisite, and is easy to use, powerful.
More than; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to scheme of the present utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1. car borne GPS navigation plate, comprise feed circuit, central processing unit, storer, GPS module, host communication interface, audio frequency DA converter and video encoder, it is characterized in that, comprising that CMMB module, described CMMB module receive radio signals and be demodulated into TS stream flows to central processing unit, and central processing unit carries out data processing, decoded voice data is exported from audio output interface after audio frequency DA converter DA conversion; Video data is exported from video output interface after with video encoder encodes.
2. car borne GPS navigation plate according to claim 1 is characterized in that, comprises bluetooth module, and described bluetooth module connects central processing unit, receives or send Bluetooth signal under the control of central processing unit.
3. car borne GPS navigation plate according to claim 1 is characterized in that, comprises the TMC receiver module, and described TMC receiver module receives the TMC wireless signal, handles flowing to central processing unit after the demodulation of TMC wireless signal.
4. car borne GPS navigation plate according to claim 1 is characterized in that, comprises vehicle-mounted speed limit early warning receiver module, and described vehicle-mounted speed limit early warning receiver module is connected with central processing unit, transmits vehicle-mounted speed limit early warning information to central processing unit.
5. according to the described car borne GPS navigation plate of arbitrary claim in the claim 1 to 4, it is characterized in that, comprise touch-screen input interface and/or infrared remote control interface, described touch-screen input interface external touch is to the input signal of central processing unit transmission touch-screen; Described infrared remote control interface connects central processing unit, transmits the infrared control signal of external remote to central processing unit.
6. according to the described car borne GPS navigation plate of arbitrary claim in the claim 1 to 4, it is characterized in that, comprise the SD card that is connected with central processing unit, described SD card is in order to connect the SD card.
7. according to the described car borne GPS navigation plate of arbitrary claim in the claim 1 to 4, it is characterized in that comprise the USB interface that is connected with central processing unit, described USB interface is used for connecing USB device.
8. according to the described car borne GPS navigation plate of arbitrary claim in the claim 1 to 4, it is characterized in that, comprise the control end that connects feed circuit with the power supply control output end of central processing unit, feed circuit are realized time-delay pass electric work energy under central processing unit control.
9. vehicle-carrying DVD system, comprise DVD mainboard, LCDs and car borne GPS navigation plate, it is characterized in that, described car borne GPS navigation plate is the described car borne GPS navigation plate of arbitrary claim in the claim 1 to 8, the host communication interface of car borne GPS navigation plate connects the microprocessor of DVD mainboard, the audio output interface of car borne GPS navigation plate connects the audio input interface of DVD mainboard, and the video output interface of car borne GPS navigation plate connects the video input interface of LCDs.
10. vehicle-carrying DVD according to claim 9 system, it is characterized in that, described car borne GPS navigation plate comprises the touch-screen input interface, described LCDs is a liquid crystal touch screen, car borne GPS navigation plate touch-screen input interface connects the output interface of liquid crystal touch screen, transmits the input signal of touch-screen to central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201347517U CN201476792U (en) | 2009-08-13 | 2009-08-13 | Vehicular GPS navigation board and vehicular DVD system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201347517U CN201476792U (en) | 2009-08-13 | 2009-08-13 | Vehicular GPS navigation board and vehicular DVD system |
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| Publication Number | Publication Date |
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| CN201476792U true CN201476792U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201347517U Expired - Lifetime CN201476792U (en) | 2009-08-13 | 2009-08-13 | Vehicular GPS navigation board and vehicular DVD system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393203A (en) * | 2011-10-27 | 2012-03-28 | 深圳市路畅科技有限公司 | Car navigation without hard press keys |
| 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 |
| CN106550034A (en) * | 2016-10-28 | 2017-03-29 | 芜湖市吉安汽车电子销售有限公司 | A kind of vehicle-mounted DA interacted systems based on Linux platform |
| CN108616721A (en) * | 2018-03-28 | 2018-10-02 | 广州凌飞电子科技有限公司 | A kind of audio-visual dual system of automobile multimedia navigation |
-
2009
- 2009-08-13 CN CN2009201347517U patent/CN201476792U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393203A (en) * | 2011-10-27 | 2012-03-28 | 深圳市路畅科技有限公司 | Car navigation without hard press keys |
| 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 |
| CN106550034A (en) * | 2016-10-28 | 2017-03-29 | 芜湖市吉安汽车电子销售有限公司 | A kind of vehicle-mounted DA interacted systems based on Linux platform |
| CN108616721A (en) * | 2018-03-28 | 2018-10-02 | 广州凌飞电子科技有限公司 | A kind of audio-visual dual system of automobile multimedia navigation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Nowada Technology Co., Ltd. Assignor: Huang Weiquan Contract record no.: 2010440020145 Denomination of utility model: Vehicular GPS navigation board and vehicular DVD system Granted publication date: 20100519 License type: Exclusive License Record date: 20100826 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
|
| CX01 | Expiry of patent term |