CN101290232A - Digital multimedia vehicle mounted navigation apparatus and navigation method - Google Patents
Digital multimedia vehicle mounted navigation apparatus and navigation method Download PDFInfo
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Abstract
The present invention provides a digital multimedia vehicular navigation device and a method thereof. The device comprises a GPS positioning unit, a central processor, a memory unit and a display unit. The vehicular navigation device further comprises a media playing unit for playing media, a data broadcasting information receiving unit for receiving media data sent through the data broadcasting and for transmitting the media data to the display unit to display or transmitting the media data to the media playing unit to play, a digital television receiving unit for receiving a ground digital television signal to carry out corresponding channel demodulation and information source decoding so as to play digital television programs, and a digital sound broadcasting receiving unit for receiving a digital sound broadcasting signal to play digital sound programs. The media data comprises at least one of electronic maps, traffic public information and personalized information. The device and the method can realize the functions of automatically updating the electronic maps and playing and displaying the road condition information in real-time, etc.
Description
Technical field
The present invention relates to GPS (GPS) airmanship, particularly relate to a kind of digital multimedia vehicle mounted navigation apparatus and air navigation aid.
Background technology
Existing most onboard navigation system has only independent GPS navigation function substantially at present, is used for functions such as vehicle satnav, geography information navigation, vehicle heading and speed demonstration.This onboard navigation system function is comparatively single, more and more is difficult to satisfy people to this electronic product performance requirement further.Though some guider has added the function that receives simulated television, Digital Television on this basis at present, television receiving function and GPS navigation function are two independently functional modules, and two parts are a shared display.Do not have exchanges data and information sharing between TV-set receiving module and the GPS navigation module, do not have the function integration points between the two.This simple module stacked system can not organically merge television receiving function and GPS navigation function, has restricted the extended capability of whole system function.In addition, because now urban transportation is more crowded, fortuitous events such as traffic congestion and traffic hazard have brought very big inconvenience for the trip of driving, so people need understand real-time road condition information, control traffic message etc. timely, to avoid the highway section that blocks up.
Also have, when geography information changed, the guider electronic chart was difficult to be upgraded timely, and this has also brought very big inconvenience for the trip of driving.
And, existing on-vehicle navigation apparatus except can show navigator information and received television program, can not restrict the expansion and the user experience of navigation feature to user's demonstration or the broadcast information (as sight spot introduction, mall information etc.) relevant with the GPS position of vehicle.
Summary of the invention
One of purpose of the present invention is to provide a kind of digital multimedia vehicle mounted navigation apparatus and air navigation aid, to receive and to play digital audio broadcasting.
Another object of the present invention is to provide a kind of digital multimedia vehicle mounted navigation apparatus and air navigation aid, with the automatic renewal of realization electronic chart and the real-time play or the demonstration of traffic information.
Another object of the present invention is to provide a kind of digital multimedia vehicle mounted navigation apparatus and air navigation aid, so that customized information to be provided.
Another object of the present invention is to provide a kind of digital multimedia vehicle mounted navigation apparatus and air navigation aid, to provide and to play road point medium to the user.
One embodiment of the invention provides a kind of digital multimedia vehicle mounted navigation apparatus, comprises GPS positioning unit, central processing unit, storage unit and display unit, and this on-vehicle navigation apparatus also comprises:
DAB receives processing unit, is used to receive the digital audio broadcast singal, and described digital audio broadcast singal is handled, and is converted to digital audio signal;
Media play unit is used to play the media signal that comprises above-mentioned sound signal.
Another embodiment of the present invention provides a kind of digital multimedia vehicle mounted navigation apparatus, comprises GPS positioning unit, central processing unit, storage unit and display unit, and this on-vehicle navigation apparatus also comprises:
Media play unit is used to carry out media play;
The data broadcasting information receiving unit is used to receive the media data that sends by data broadcasting, and described media data is transferred to display unit shows or be transferred to media play unit and play.
Another embodiment of the present invention provides a kind of digital multimedia vehicle mounted navigation apparatus, comprises GPS positioning unit, central processing unit, storage unit and display unit, and this on-vehicle navigation apparatus also comprises:
Road point multimedia receiving element is used to receive and store road point multimedia messages and the relevant GPS positional information that the terrestrial DTV front end system sends;
Media play unit in the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', is play described road point multimedia messages.
Another embodiment of the present invention provides a kind of digital multimedia vehicle mounted air navigation aid, and this method comprises:
Receive gps signal by the GPS GPS, and generate locator data;
According to the locator data that generates at the enterprising driving of an electronic chart location navigation;
Receive the digital audio broadcast singal, and play after described digital audio broadcast singal is converted to the media signal that can play;
Receive the ground digital television broadcast signal, and play after described digital TV broadcast signal is converted to the media signal that can play.
Another embodiment of the present invention provides a kind of digital multimedia vehicle mounted air navigation aid, and this method comprises:
Receive gps signal by the GPS GPS, and generate locator data;
According to the locator data that generates at the enterprising driving of an electronic chart location navigation;
The media data that reception sends by data broadcasting, and show or play described media data.
Another embodiment of the present invention provides a kind of digital multimedia vehicle mounted air navigation aid, and this method comprises:
Receive gps signal by the GPS GPS, and generate locator data;
According to the locator data that generates at the enterprising driving of an electronic chart location navigation;
Receive and the road point multimedia messages of storage terrestrial DTV front end system transmission and relevant GPS positional information; In the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', play described road point multimedia messages.
Digital multimedia vehicle mounted navigation apparatus that the embodiment of the invention provides and air navigation aid can receive and play digital audio and broadcast, can upgrade automatically electronic chart, real-time play or show traffic information, and can provide and subscriber-related customized information; In addition, can also play the road point medium relevant (such as sight spot introduction, mall information, school admission imformation etc.), expand the function of on-vehicle navigation apparatus greatly and more user experience is provided with vehicle location.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is the structural representation of digital multimedia vehicle mounted navigation apparatus of the present invention;
Fig. 2 is the structural representation of GPS module in the digital multimedia vehicle mounted navigation apparatus of the present invention;
Fig. 3 is the structural representation that DAB receives processing unit in the digital multimedia vehicle mounted navigation apparatus of the present invention;
Fig. 4 is the structural representation that Digital Television receives processing unit in the digital multimedia vehicle mounted navigation apparatus of the present invention;
Fig. 5 is according to digital multimedia vehicle mounted navigational system synoptic diagram of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is described in further details below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
Embodiment one
The embodiment of the invention one provides a kind of digital multimedia vehicle mounted navigation apparatus.Fig. 1 is the structural representation of digital multimedia vehicle mounted navigation apparatus of the present invention.As shown in Figure 1, the digital multimedia vehicle mounted navigation apparatus of present embodiment comprises: GPS positioning unit 200, DAB receive processing unit 300, Digital Television receives processing unit 500, data broadcasting information receiving unit 600, road point multimedia receiving element 700, control module (as CPU) 100, data storage cell 800 and display/play unit 400 etc.Wherein:
Described GPS positioning unit 200 is used to receive gps signal, and carries out signal Processing generation locator data information.
Described DAB receives processing unit 300 and is used to receive the digital audio broadcast singal, and described digital audio broadcast singal handled (carry out the digital audio encoding and decoding, as carry out down coversion, intermediate frequency demodulation, OFDM (OFDM) demodulation, differential decoding and separate frequency interlacing etc., and will carry out audio decoder through the code stream of Base-Band Processing), be converted to digital audio signal.
Described Digital Television receives processing unit 500 and is used for receiving digital television signal, and described digital television signal is handled, and is converted to the audio/video signal.Terrestrial DTV receives processing unit and receives ground digital television broadcast (the ground digital television broadcast signal that meets DVB-T, DVB-H, ISDB-T and meet Chinese terrestrial DTV standard GB20600-2006 " digital television ground broadcast transmission system frame structure, chnnel coding and modulation " etc.), carry out corresponding channel demodulation and source coding, the reduction audio-video signal, and go up display video image at display unit (as LCD LCD), the signal that plays sound of the broadcast unit by multimedia vehicle mounted navigation apparatus.
The digital multimedia vehicle mounted navigation apparatus of present embodiment receives processing unit by Digital Television also can realize the automatic roaming function: store up geographical frequency configuration information (this geography frequency configuration information for example can comprise GPS positional information and corresponding Digital Television frequency configuration) in the memory cell of guider, in conjunction with the GPS positioning function of digital multimedia vehicle mounted navigation apparatus, realize that according to the Digital Television frequency configuration of the GPS position correspondence at vehicle place Digital Television receives the automatic switchover of frequency.For example: the GPS positional information (as storing each metropolitan GPS band of position coordinate of a whole nation) and the corresponding Digital Television frequency configuration information that contain a plurality of geographic areas at the guider internal memory, in automobile is exercised certain urban area, this Digital Television receives processing unit can receive frequency according to the frequency automatic switchover Digital Television that the configuration information of this regional GPS positional information correspondence is indicated, realize the automatic roaming function, thereby play the digital television program of vehicular seat automatically.
Described data broadcasting information receiving unit 600 is used to receive the data broadcasting information that sends in the mode of data broadcasting by the terrestrial DTV front end system.This data broadcasting information can comprise electronic map data, public traffic information (as traffic information) and/or personalized information data, also can comprise above-mentioned geographical frequency configuration information (promptly, geographical frequency configuration information also can be sent to the data broadcasting information receiving unit in the mode of data broadcasting, receives and be stored to storage unit by the data broadcasting information receiving unit).
By receiving electronic map data and it being stored in the storage unit of car-mounted device, can carry out the backup and the renewal of map datum automatically.When geographical information changes, when the electronic chart of guider need upgrade, by the terrestrial DTV front end system mode of electronic map data by data broadcasting sent on the digital multimedia vehicle mounted navigation apparatus, guider carries out ground digital television channels demodulation and data extract by the data broadcasting information receiving unit, utilize the built-in data broadcasting function of guider to carry out the electronic map data reduction, and be stored in the storage space of navigational system, to carry out the backup and the renewal of map datum automatically.Like this, the up-to-date electronic chart that can show city, vehicle place, area by the display unit of digital multimedia vehicle mounted navigation apparatus, can know information such as inquiring vehicle present position, travel speed, the orientation of travelling intuitively by electronic chart, thereby correctly guide the user to go on a journey.
The traffic public information that described data broadcasting information receiving unit receives can comprise other traffic public information of real-time road condition information and some, and for example this traffic public information can be block up highway section positional information, control traffic message, sleety weather forecast or information such as warning, vehicle management.The customized information that described data broadcasting information receiving unit receives is such as comprising information such as car owner's vehicle peccancy, driving license audit, car insurance.The terrestrial DTV front end system is organized in these information package in the data broadcast service of this front end system, through the modulation of digital TV front-end system channel, send to on-vehicle navigation apparatus by the ground digital television broadcast transmission channel, the data broadcasting information receiving unit of this on-vehicle navigation apparatus carries out ground digital television channels demodulation and data extract, receives these information.When receiving described customized information, the system identity of guider self number and customized information ID (identity number) can be compared, the customized information that storage meets the comparison condition is in the data storage cell of on-vehicle navigation apparatus, and storage back user can carry out the inquiry of customized information as required at any time.
On-vehicle navigation apparatus can show this public information or customized information after receiving all public information and customized information by the data broadcasting information receiving unit on the display screen of on-vehicle navigation apparatus.And, if the public information that receives (as road conditions, road section information blocks up) but the geographic position that takes place just in time in the indication range of electronic chart, this public information of mark on electronic chart automatically then.For example, when vehicle ' near certain crossing, the data broadcasting information receiving unit of guider just in time receives the public information that near highway section, certain crossing gets congestion in the car, then this information can mark out on electronic chart by certain way (icon that blocks up as expression), make the user obtain road conditions, the road section information that blocks up intuitively, the user is optional to select more feasible traffic route thereby make.By this data broadcasting information receiving unit, the on-vehicle navigation apparatus of the embodiment of the invention can be realized the multifunctional intellectual inquiry, with information such as real-time inquiry road conditions.
Described road point multimedia receiving element 700 is used to receive and store road point multimedia messages that the terrestrial DTV front end system sends and relevant GPS positional information (the GPS positional information that the terrestrial DTV front end system is relevant with short-movie with some audio frequency and video short-movies is packed and sent to the road point multimedia receiving element of digital multimedia vehicle mounted navigation apparatus by the mode of data broadcasting, this road point multimedia receiving element with these short-movies and relevant GPS information stores to the data storage cell of on-vehicle navigation apparatus).The introduction that this road point multimedia messages can be the scenic spot, the advertising campaign in market, the school admission imformation of school or the like public good and commercial advertisement, it can be a video clip, also can be forms such as audio frequency, FLASH, literal or picture.In the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', can on the display screen of guider, play described road point multimedia messages with the form of full frame or sprite.For example, the audio frequency and video short-movie of introducing about sight spot, the Summer Palace that road point multimedia receiving element has received that the terrestrial DTV front end system sends and the GPS positional information in the Summer Palace also are stored in the storer, then, then play described audio frequency and video short-movie automatically by the player on the car-mounted device when the position (in 1 kilometer range around the Summer Palace) of vehicle ' to the GPS positional information indication in the Summer Palace.The driver just can understand various and relevant various information in geographic position on the way on the way travelling like this, for the user provides very big convenience.
Described data storage cell 800 is used for data such as storage execute program, electronic map data, real-time information (public traffic information and customized information), audio frequency and video short-movie program, geographical frequency configuration information, also is used to decoding and the running space storing information such as the user is provided with and program is provided.This data storage cell can comprise FLASH, SDRAM, E
2Data-carrier stores such as PROM, but be not limited to this.
Described display unit is used to show electronic chart, traffic information and customized information etc., also is used to Show Picture, clear data signal such as literal.In the present embodiment, display unit is a LCD.
Broadcast unit is used for audio plays, video, data-signal.In the present embodiment, described broadcast unit is video encoding module, audio frequency DAC D/A converter module and attached display, loudspeaker etc.Video encoding module is converted to mixed video signal (CVBS) or S terminal vision signal with digital video signal, and these signals are through after low-pass filtering, can deliver on the attached display of guider and play.Audio frequency DAC is converted to stereo simulating signal with the digital pcm data, can deliver on the accessory speakers of guider and play.
Described control module 100 is meant the central processing unit (CPU) of this guider, as RISC CPU, is used for the operational system program, and each unit is controlled.
On-vehicle navigation apparatus in the present embodiment also comprises some peripherals 900, as modules (but being not limited to this) such as power supply, telepilot reception, panel button, data buss, in order to support operation, control and the operation of total system.
In the present embodiment, described Digital Television receives processing unit, data broadcasting information receiving unit and road point multimedia receiving element can combine, in other words, data broadcasting information receiving unit and road point multimedia receiving element can be incorporated in the Digital Television reception processing unit, the digital television broadcasting and the various data broadcasting that are sent by Digital Television reception processing unit reception terrestrial DTV front end system (comprise electronic map data, the traffic public information, customized information and multimedia road dot information etc.), electronic map updating is carried out in the both reception of combine digital TV signal and broadcasts again, obtaining of real-time road condition information and customized information, and the automatic playing function of multimedia road dot information.
Fig. 2 is the general configuration synoptic diagram of GPS positioning unit in the digital multimedia vehicle mounted navigation apparatus of the present invention.This GPS positioning unit can receive the gps signal (vehicle heading data) that the gps satellite positioning system provides, and signal output is connected to central processing unit 100.As shown in Figure 2, the gps signal of 1575.42MHz is before entering down coversion IC, earlier through low noise amplifier (LNA) and wave filter (RF SAW).Behind the radiofrequency signal process down coversion IC single-ended or difference IF (intermediate frequency) signal are exported to GPS baseband digital signal processing unit (DSP).Locating information after GPS base band DSP handles is followed the NMEA0183 standard, realizes and the communicating by letter of digital multimedia vehicle mounted navigation apparatus central processing unit by serial data interface.On-vehicle navigation apparatus can be realized various application by special software, such as the tracing and positioning that realizes various vehicle targets by Geographic Information System (GIS) etc.
Fig. 3 is the structural representation that DAB receives processing unit in the digital multimedia vehicle mounted navigation apparatus of the present invention.As shown in Figure 3, DAB reception processing unit mainly is divided into high intermediate frequency front end, base-band digital is handled and audio decoder three parts.Wherein, high intermediate frequency fore-end comprises down coversion and demodulation circuit of intermediate frequency.
The core of base-band digital processing section comprises that mainly synchronous extraction circuit, ofdm demodulator, differential ference spiral conciliate frequency-domain-interleaving, and demultiplexing, separates that time domain interweaves and channel-decoding.
Synchronous extraction circuit is finished the extraction of carrier wave frequency deviation, the estimation of channel impulse response and the extraction of sampling clock deviation, for front end provides carrier wave AFC (control of automatic frequency control automatic frequency) signal, for providing effective information, the A/D conversion extracts scope and sampling clock AFC signal, for other module provides frame synchronization, symbol synchronization and system clock.Ofdm demodulator will be finished 2 048 the plural FFT and the differential decoding of PI/4-DQPSK.
DAB receives processing unit digital sound radio data is carried out bulk treatment.The digital audio broadcast data channel is divided into synchronizing channel, snap information passage (FIC) and main business passage (MSC), and MSC holds multichannel voice frequency and data service simultaneously.The demultiplexing circuit separates FIC with MSC, and according to subscriber control information chooser passage in MSC.Separate time domain and interweave and only be used for MSC, error-correcting decoding then carries out respectively FIC and MSC, has adopted the Viterbi Soft decision decoding.The control section (CPU) 100 of on-vehicle navigation apparatus is sent in FIC data after the decoding and MSC data service, and decoding back MSC voice data is sent into mpeg audio decoder after the speed adjustment.Decoded pcm stream is exported after digital-to-analog conversion (D/A).
Fig. 4 be in the present embodiment in the digital multimedia vehicle mounted navigation apparatus Digital Television receive the structural representation of processing unit.This Digital Television receives the function that processing unit has been integrated data broadcasting information receiving unit and road point multimedia receiving element, both can be by the digital television broadcasting receiving digital television signal, can receive the data (as electronic map data, real-time road condition information, customized information and road point multimedia messages etc.) that send in the mode of data broadcasting by digital television broadcasting again, and the data that receive are carried out channel-decoding and source coding is handled.As shown in Figure 4, this Digital Television reception processing unit mainly comprises front-end circuit 510 and back-end circuit 520.Wherein, front end (front-end, FE) circuit 510 is used for carrying out channel-decoding with digital TV broadcast signal and with the data that the mode of data broadcasting sends, be converted to digital transmission crossfire (TS), this front-end circuit mainly comprises tuner (Tuner) and channel demodulator (demodulator); Back-end circuit 520 is mainly used in carries out source coding with the digital transmission crossfire, is converted to video, audio frequency or clear data signal.This back-end circuit mainly comprises: demultiplexing module and MPEG-2 demoder.
Terrestrial DTV front end system emission ground digital television signal and data broadcasting signal are to multimedia vehicle mounted navigation apparatus, and terrestrial DTV receives the processing unit received signal and handles.The terrestrial DTV front end system has carried out MPEG-2 coding, multi program multiplex, Error Correction of Coding, Channel Modulation, up-conversion to source signal, behind the UHF/VHF high-frequency signal that the terrestrial DTV reception processing unit reception ground digital television broadcast network system of digital multimedia vehicle mounted navigation apparatus sends, carry out corresponding demodulation, demultiplexing reduction programme signal.
At first tuner carries out down coversion to high-frequency signal, and signal is modulated to intermediate-freuqncy signal behind tuner.From the intermediate-freuqncy signal of tuner through analog to digital converter (analog-to-digital converter ADC) carries out analog to digital conversion, again through overregulate/the detuner channel demodulation after, with the form of mpeg 2 transport stream (TS), deliver to demultiplexing module.
Demultiplexing module is analyzed the data of input by the PID processing unit, to extract clear data information such as respective audio PES (becoming the bag elementary stream) data, video PES data, program specific information (PSI), information on services (SI) and electronic chart, traffic information, customized information.Clear data information parses in multiplexing transport stream, is stored in the storage unit of multimedia omniselector.At first, using bag sign (PID) is in the program inventory table (PAT) in 0 the code stream (the bag sign (PID) of carrying the code stream of program inventory table (PAT) always is set as " 0 "), finds out the pid value of the code stream that has carried program description list (PMT).From then on just can find out among the PMT each PES stream of forming this road program pid value.The data tapping that just can from the TS bag each PES be flowed according to these pid values comes out, and reformulates PES stream separately.PSI (program special information program specific information), SI (service information business information) extract the back and use for decoding.
Video PES data and audio frequency PES data are decoded by the MPEG-2 demoder.Two groups of signals of decoding back output, one group is the digital video signal of giving digital video code, another group is to give the digital audio and video signals of the PCM form of audio frequency DAC.Video encoding module is converted to mixed video signal (CVBS) or S terminal vision signal with digital video signal, and these signals are through after low-pass filtering, can deliver on the attached display of omniselector and play.Audio frequency DAC is converted to stereo simulating signal with the digital pcm data.
Fig. 5 is according to digital multimedia vehicle mounted navigational system synoptic diagram of the present invention.This system is in conjunction with the basic function of GPS navigation device, ground digital television receiver and ground digital sound broadcasting receiver commonly used, and in addition whole and and the performance expansion of function on this basis.Its maximum characteristics are the professional and GPS information navigation information service business of combined ground data broadcast of digital TV, for the user provides comprehensive, real-time, individual info service, and increase the function serving information expanded ground digital television broadcast on this basis, not only can receive and play digital audio and broadcast, can upgrade automatically electronic chart, real-time play or show traffic information, and can provide and subscriber-related customized information; In addition, can also play the road point medium relevant (such as sight spot introduction, mall information, school admission imformation etc.) with vehicle location.Therefore the on-vehicle navigation apparatus of present embodiment has enriched the class of business of terrestrial DTV operator, has increased the profit growth point and the network building-out value of terrestrial DTV operator, and better user experience is provided.
Embodiment two
The embodiment of the invention two provides a kind of digital multimedia vehicle mounted air navigation aid, and this method comprises the steps:
Receive gps signal by the GPS GPS, and generate locator data;
According to the locator data that generates at the enterprising driving of an electronic chart location navigation;
Receive the digital audio broadcast singal, and play after described digital audio broadcast singal is converted to the media signal that can play;
Receive the ground digital television broadcast signal, and carry out digital sound encoding and decoding, play (for example can play) after described digital TV broadcast signal being converted to the media signal that to play by the multichannel sterego sound of guider.
Receive and store electronic map data, carry out the backup and the renewal of electronic chart by the data broadcasting transmission.When geographical information changes, when the electronic chart of guider need upgrade, by the terrestrial DTV front end system mode of electronic map data by data broadcasting sent on the digital multimedia vehicle mounted navigation apparatus, guider carries out ground digital television channels demodulation and data extract, utilize the built-in data broadcasting function of guider to carry out the electronic map data reduction, and be stored in the storage space of navigational system, multimedia vehicle mounted navigation apparatus can carry out the backup and the renewal of map datum automatically.
Real-time information (as the customized information of traffic public information and/or the coupling) data that reception sends by data broadcasting; The multimedia intelligent navigation feature not only has common GPS navigation device functions such as comprising navigator fix vehicle location, direct of travel, travel speed, also has real-time road condition information to receive and Presentation Function.The public informations such as position, highway section, control traffic message, sleety weather warning, vehicle management of not only can blocking up by the electronic chart real time inspection of navigational system; Can also receive customized informations such as car owner's vehicle peccancy, driving license audit, car insurance.The method that receives these real-time information is by the terrestrial DTV front end system these data message packings to be organized in the data broadcast service of front end system, through the modulation of digital TV front-end system channel, send to each on-vehicle navigation apparatus by ground system of digital television broadcast.On-vehicle navigation apparatus receives all common data information, and common data information is shown on the display screen of on-vehicle navigation apparatus.The on-vehicle navigation apparatus of present embodiment receives when showing customized information in addition, the system identity of guider self number and customized information ID (identity number) can be compared, storage shows the customized information that meets the comparison condition, shows that these information are on the display screen of navigational system.
Described traffic public information or customized information can show on a screen window or electronic chart.If the public information that receives (as road conditions, road section information blocks up) but the geographic position that takes place just in time in the indication range of electronic chart, this public information of mark on electronic chart automatically then.
Receive and the road point multimedia messages of storage terrestrial DTV front end system transmission and relevant GPS positional information; In the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', play described road point multimedia messages.The introduction that this road point multimedia messages can be the scenic spot, the advertising campaign in market, the school admission imformation of school or the like public good and commercial advertisement, it can be a video clip, also can be forms such as audio frequency, FLASH, literal or picture.For example, packing by the terrestrial DTV operation front end GPS positional information that some audio frequency and video short-movies are relevant with short-movie is sent on the digital multimedia vehicle mounted navigation apparatus, guider with these short-movies and relevant GPS information stores to the storage hard disk of on-vehicle navigation apparatus.Central processing unit by navigational system calculates the GPS position of vehicle and is stored in the GPS position of navigational system hard disk, in the time of near vehicle is exercised these characteristic point positions, navigational system automatically on display screen the form with full frame or sprite play.
In addition, present embodiment also can be realized the automatic roaming of guider in conjunction with the receiving function of GPS positioning function and digital television signal: the GPS positional information and the corresponding Digital Television frequency point information thereof of storing a plurality of geographic areas; When vehicle ' to one of them geographic area, receive frequency according to the Digital Television frequency point information automatic switchover Digital Television corresponding with the GPS positional information of this geographic area, thereby realize the automatic roaming function, automatic reception is also play the digital television program of vehicular seat.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method can instruct relevant hardware to finish by program, this program can be stored in the computer read/write memory medium, such as ROM/RAM, magnetic disc, CD etc.
As mentioned above, the guider of the embodiment of the invention and air navigation aid, can be achieved as follows function: watch digital television program by receiving ground digital television broadcast, automatically upgrade vehicle-mounted navigation map software, and reception digital audio broadcasting, automatically on electronic chart, mark road conditions, the road section information that blocks up, automatic roaming, and automatically on electronic chart, play the propaganda introduction in feature areas such as sight spot, market, school and advertisement etc.
Above embodiment only is used to illustrate the present invention, and is not intended to limit the scope of the invention, and is within the spirit and principles in the present invention all, any modification of being made, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (36)
1. a digital multimedia vehicle mounted navigation apparatus comprises GPS positioning unit, central processing unit, storage unit and display unit, it is characterized in that, this on-vehicle navigation apparatus also comprises:
DAB receives processing unit, is used to receive the digital audio broadcast singal, and described digital audio broadcast singal is handled, and is converted to digital audio signal;
Media play unit is used to play the media signal that comprises above-mentioned digital audio signal.
2. device according to claim 1 is characterized in that, this device also comprises:
Digital Television receives processing unit, is used to receive the ground digital television broadcast signal, and described digital TV broadcast signal is handled, and is converted to audio frequency and vision signal.
3. device according to claim 2 is characterized in that:
Described cell stores has the GPS positional information and the corresponding Digital Television frequency point information thereof of a plurality of geographic areas;
When vehicle ' to one of them geographic area, described Digital Television receives processing unit and receives frequency according to the Digital Television frequency point information automatic switchover Digital Television corresponding with the GPS positional information of this geographic area.
4. device according to claim 1 and 2 is characterized in that, this device also comprises:
The data broadcasting information receiving unit is used to receive the data message that sends by data broadcasting.
5. device according to claim 1 and 2 is characterized in that, described data message comprises:
Electronic map data, traffic public information and the customized information that is complementary at least one of them;
The described electronic chart, traffic public information and the customized information that receive are stored in the described storage unit.
6. device according to claim 5 is characterized in that:
Described traffic public information is shown in described display unit by window or electronic chart.
7. device according to claim 1 and 2 is characterized in that, this device also comprises:
Road point multimedia receiving element is used to receive and store road point multimedia messages and the relevant GPS positional information that the terrestrial DTV front end system sends; In the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', play described road point multimedia messages by described media play unit.
8. device according to claim 7 is characterized in that:
Described road point multimedia messages comprises: audio frequency, video, FLASH, literal and picture at least one of them.
9. a digital multimedia vehicle mounted navigation apparatus comprises GPS positioning unit, central processing unit, storage unit and display unit, it is characterized in that, this on-vehicle navigation apparatus also comprises:
Media play unit is used to carry out media play;
The data broadcasting information receiving unit is used to receive the media data that sends by data broadcasting, and described media data is transferred to display unit shows or be transferred to media play unit and play.
10. device according to claim 9 is characterized in that:
Described media data comprise electronic chart, traffic public information and customized information at least one of them;
The described electronic chart, traffic public information and the customized information that receive are stored in the described storage unit.
11. device according to claim 9 is characterized in that, this on-vehicle navigation apparatus also comprises:
DAB receives processing unit, is used to receive the digital audio broadcast singal, and with described digital audio broadcast singal converting digital voice signal, is transferred to media play unit and plays.
12. device according to claim 9 is characterized in that, this on-vehicle navigation apparatus also comprises:
Digital Television receives processing unit, is used to receive ground digital television signal, and with described digital television signal conversion audio frequency and vision signal, is transferred to media play unit and plays.
13. device according to claim 12 is characterized in that:
Described cell stores has the GPS positional information and the corresponding Digital Television frequency point information thereof of a plurality of geographic areas;
When vehicle ' to one of them geographic area, described Digital Television receives processing unit and receives frequency according to the Digital Television frequency point information automatic switchover Digital Television corresponding with the GPS positional information of this geographic area.
14. device according to claim 9 is characterized in that, this on-vehicle navigation apparatus also comprises:
Road point multimedia receiving element is used to receive and store road point multimedia messages and the relevant GPS positional information that the terrestrial DTV front end system sends; In the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', play described road point multimedia messages by described media play unit.
15. device according to claim 14 is characterized in that:
Described road point multimedia messages comprises: audio frequency, video, FLASH, literal and picture at least one of them.
16. a digital multimedia vehicle mounted navigation apparatus comprises GPS positioning unit, central processing unit, storage unit and display unit, it is characterized in that, this on-vehicle navigation apparatus also comprises:
Road point multimedia receiving element is used to receive and store road point multimedia messages and the relevant GPS positional information that the terrestrial DTV front end system sends;
Media play unit in the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', is play described road point multimedia messages.
17. device according to claim 16 is characterized in that:
Described road point multimedia messages comprises: audio frequency, video, FLASH, literal and picture at least one of them.
18. device according to claim 16 is characterized in that, this device also comprises:
DAB receives processing unit, is used to receive the digital audio broadcast singal, and with described digital audio broadcast singal converting digital voice signal, is transferred to media play unit and plays;
Digital Television receives processing unit, is used to receive ground digital television signal, and with described digital television signal conversion audio frequency and vision signal, is transferred to media play unit and plays.
19. device according to claim 18 is characterized in that:
Described cell stores has the GPS positional information and the corresponding Digital Television frequency point information thereof of a plurality of geographic areas;
When vehicle ' to one of them geographic area, described Digital Television receives processing unit and receives frequency according to the Digital Television frequency point information automatic switchover Digital Television corresponding with the GPS positional information of this geographic area.
20. device according to claim 16 is characterized in that this device also comprises:
The data broadcasting information receiving unit is used to receive the media data that sends by data broadcasting, and described media data is transferred to display unit shows or be transferred to media play unit and play.
21. device according to claim 20 is characterized in that:
Described media data comprise electronic chart, traffic public information and customized information at least one of them;
The described electronic chart, traffic public information and the customized information that receive also are stored in the described storage unit.
22. a digital multimedia vehicle mounted air navigation aid is characterized in that, this method comprises:
Receive gps signal by the GPS GPS, and generate locator data;
According to the locator data that generates at the enterprising driving of an electronic chart location navigation;
Receive the digital audio broadcast singal, and play after described digital audio broadcast singal is converted to the media signal that can play;
Receive the ground digital television broadcast signal, and play after described digital TV broadcast signal is converted to the media signal that can play.
23. method according to claim 22 is characterized in that, this method also comprises:
Receive the media data that also storage sends by data broadcasting, and show or play described media data;
This media data comprise electronic chart, traffic public information and customized information at least one of them.
24. method according to claim 22 is characterized in that, this method also comprises:
Receive and the road point multimedia messages of storage terrestrial DTV front end system transmission and relevant GPS positional information; In the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', play described road point multimedia messages.
25. method according to claim 24 is characterized in that:
Described road point multimedia messages comprises: audio frequency, video, FLASH, literal and picture at least one of them.
26. method according to claim 22 is characterized in that, this method also comprises:
Store the GPS positional information and the corresponding Digital Television frequency point information thereof of a plurality of geographic areas;
When vehicle ' to one of them geographic area, receive frequency according to the Digital Television frequency point information automatic switchover Digital Television corresponding with the GPS positional information of this geographic area.
27. a digital multimedia vehicle mounted air navigation aid is characterized in that this method comprises:
Receive gps signal by the GPS GPS, and generate locator data;
According to the locator data that generates at the enterprising driving of an electronic chart location navigation;
The media data that reception sends by data broadcasting, and show or play described media data.
28. method according to claim 27 is characterized in that:
Described media data comprise electronic chart, traffic public information and customized information at least one of them.
29. method according to claim 27 is characterized in that, this method also comprises:
Receive the digital audio broadcast singal, and play after described digital audio broadcast singal is converted to the media signal that can play;
Receive the ground digital television broadcast signal, and play after described digital TV broadcast signal is converted to the media signal that can play.
30. method according to claim 27 is characterized in that, this method also comprises:
Receive and the road point multimedia messages of storage terrestrial DTV front end system transmission and relevant GPS positional information; In the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', play described road point multimedia messages.
31. method according to claim 30 is characterized in that:
Described road point multimedia messages comprises: audio frequency, video, FLASH, literal and picture at least one of them.
32. method according to claim 29 is characterized in that, this method also comprises:
Store the GPS positional information and the corresponding Digital Television frequency point information thereof of a plurality of geographic areas;
When vehicle ' to one of them geographic area, receive frequency according to the Digital Television frequency point information automatic switchover Digital Television corresponding with the GPS positional information of this geographic area.
33. a digital multimedia vehicle mounted air navigation aid is characterized in that, this method comprises:
Receive gps signal by the GPS GPS, and generate locator data;
According to the locator data that generates at the enterprising driving of an electronic chart location navigation;
Receive and the road point multimedia messages of storage terrestrial DTV front end system transmission and relevant GPS positional information; In the time of near the GPS position of the extremely described relevant GPS positional information indication of vehicle ', play described road point multimedia messages.
34. method according to claim 33 is characterized in that, this method also comprises:
Receive the digital audio broadcast singal, and play after described digital audio broadcast singal is converted to the media signal that can play;
Receive the ground digital television broadcast signal, and play after described digital TV broadcast signal is converted to the media signal that can play.
35. method according to claim 33 is characterized in that, this method also comprises:
Receive the media data that also storage sends by data broadcasting, and show or play described media data;
This media data comprise electronic chart, traffic public information and customized information at least one of them.
36. method according to claim 34 is characterized in that, this method also comprises:
Store the GPS positional information and the corresponding Digital Television frequency point information thereof of a plurality of geographic areas;
When vehicle ' to one of them geographic area, receive frequency according to the Digital Television frequency point information automatic switchover Digital Television corresponding with the GPS positional information of this geographic area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100964721A CN101290232A (en) | 2007-04-18 | 2007-04-18 | Digital multimedia vehicle mounted navigation apparatus and navigation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100964721A CN101290232A (en) | 2007-04-18 | 2007-04-18 | Digital multimedia vehicle mounted navigation apparatus and navigation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101290232A true CN101290232A (en) | 2008-10-22 |
Family
ID=40034591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100964721A Pending CN101290232A (en) | 2007-04-18 | 2007-04-18 | Digital multimedia vehicle mounted navigation apparatus and navigation method |
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| Country | Link |
|---|---|
| CN (1) | CN101290232A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917620A (en) * | 2010-08-20 | 2010-12-15 | 浙江大学 | Method for intraframe coding of geographic information in MEPG-2 video coding |
| CN102111724A (en) * | 2009-12-29 | 2011-06-29 | 深圳市赛格导航科技股份有限公司 | Vehicle-mounted service system and vehicle-mounted terminal |
| CN102332293A (en) * | 2011-07-22 | 2012-01-25 | 重庆长安汽车股份有限公司 | Vehicle-mounted digital music player |
| WO2012155332A1 (en) * | 2011-05-17 | 2012-11-22 | Mediatek Singapore Pte. Ltd. | Semiconductor integrated circuit of car navigation system and multimedia processing method applied to car navigation system integrated with fm/am broadcast receiving function |
| CN102938828A (en) * | 2012-11-22 | 2013-02-20 | 福州大学 | Satellite television and Beidou navigator integrated machine |
| WO2015035554A1 (en) * | 2013-09-10 | 2015-03-19 | 电装(中国)投资有限公司 | Mobile terminal |
| CN104811761A (en) * | 2015-04-23 | 2015-07-29 | 深圳市九洲电器有限公司 | Program regional arranging method and system |
| CN105698802A (en) * | 2016-01-29 | 2016-06-22 | 北京智驾互联信息服务有限公司 | Map navigation method and system |
| CN106202193A (en) * | 2016-06-27 | 2016-12-07 | 北京小米移动软件有限公司 | The method of road image acquisition of information, Apparatus and system |
| CN107532908A (en) * | 2015-05-06 | 2018-01-02 | 谷歌公司 | Ears navigation hint |
| CN113163262A (en) * | 2020-09-23 | 2021-07-23 | 深圳市灰度科技有限公司 | Program playing method and device, vehicle-mounted equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102111724A (en) * | 2009-12-29 | 2011-06-29 | 深圳市赛格导航科技股份有限公司 | Vehicle-mounted service system and vehicle-mounted terminal |
| CN101917620B (en) * | 2010-08-20 | 2012-08-08 | 浙江大学 | Method for intraframe coding of geographic information in MEPG-2 video coding |
| CN101917620A (en) * | 2010-08-20 | 2010-12-15 | 浙江大学 | Method for intraframe coding of geographic information in MEPG-2 video coding |
| CN103004095A (en) * | 2011-05-17 | 2013-03-27 | 联发科技（新加坡）私人有限公司 | Semiconductor integrated circuit of car navigation system and multimedia processing method applied to car navigation system integrated with fm/am broadcast receiving function |
| WO2012155332A1 (en) * | 2011-05-17 | 2012-11-22 | Mediatek Singapore Pte. Ltd. | Semiconductor integrated circuit of car navigation system and multimedia processing method applied to car navigation system integrated with fm/am broadcast receiving function |
| CN102332293A (en) * | 2011-07-22 | 2012-01-25 | 重庆长安汽车股份有限公司 | Vehicle-mounted digital music player |
| CN102938828A (en) * | 2012-11-22 | 2013-02-20 | 福州大学 | Satellite television and Beidou navigator integrated machine |
| WO2015035554A1 (en) * | 2013-09-10 | 2015-03-19 | 电装(中国)投资有限公司 | Mobile terminal |
| CN104811761A (en) * | 2015-04-23 | 2015-07-29 | 深圳市九洲电器有限公司 | Program regional arranging method and system |
| CN107532908A (en) * | 2015-05-06 | 2018-01-02 | 谷歌公司 | Ears navigation hint |
| CN105698802A (en) * | 2016-01-29 | 2016-06-22 | 北京智驾互联信息服务有限公司 | Map navigation method and system |
| CN106202193A (en) * | 2016-06-27 | 2016-12-07 | 北京小米移动软件有限公司 | The method of road image acquisition of information, Apparatus and system |
| CN113163262A (en) * | 2020-09-23 | 2021-07-23 | 深圳市灰度科技有限公司 | Program playing method and device, vehicle-mounted equipment and storage medium |
| CN113163262B (en) * | 2020-09-23 | 2024-01-26 | 深圳市灰度科技有限公司 | Program playing method and device, vehicle-mounted equipment and storage medium |
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