CN103237243A - Vehicle-mounted digital television receiving terminal capable of realizing EPG (Electronic Program Guide) display style multi-user management - Google Patents
Vehicle-mounted digital television receiving terminal capable of realizing EPG (Electronic Program Guide) display style multi-user management Download PDFInfo
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Abstract
The invention relates to a vehicle-mounted digital television receiving terminal capable of realizing EPG (Electronic Program Guide) display style multi-user management, which comprises a user input module, a user login module, a user authority authentication module, a demultiplexing module, an EPG information parsing module and a display driving module. The user login module forwards user information which is input through the user input module to the user authority authentication module. After the user information is authenticated, the user authority authentication module obtains EPG template information corresponding to the user from an EPG template library, the demultiplexing module and the EPG information parsing module respectively start demultiplexing and EPG information parsing operation and the display driving module displays the EPG template information and EPG information obtained through parsing in a combined manner. By adopting the technical scheme, since a user management system is added to the vehicle-mounted digital television receiving terminal, digital television broadcasting signals of wireless DVB-T (Digital Video Broadcasting-Terrestrial) are started to be received and displayed only when users who satisfy conditions conduct operation.
Description
Technical field
The present invention relates to in-car TV and receive the field, relate in particular to a kind of vehicle-mounted digital television receiving terminal of the EPG of realization display styles multi-user management.
Background technology
In-car TV is to be placed on the TV that automobile is watched above, briefly, is exactly that the mobile of Digital Television receives, and the in-car TV receiving system mainly comprises set-top box, LCDs, antenna, vehicle power etc.Install and use for convenience, developed the vehicle-mounted mobile TV product such as multiple styles such as desk-top in-car TV, baffle-type in-car TV and top suction type in-car TVs.Along with the progress of developing of automobile industry and mobile communication technology, in-car TV receives has become the important channel that Digital Television receives.What the technology that the Digital Television of in-car TV is propagated adopted is ground digital television broadcast DVB-T technology, be three kinds of modes propagating of Digital Television it, this technology is carried out the propagation of TV programme by wireless digital signal emission, ground method of reseptance.The vehicles in all movements (as track traffic, Vaporetto, automobile etc.) or the serious hope collecting and distributing place of the stream of people (as station, harbour, all kinds of shopping, leisure place etc.) in one's power, as long as corresponding receiving equipment is installed, rely on the LCDs of suitable size, all can receive all kinds of Digital Television informations into the exclusive supply of mobile TV institute.
But, existing in-car TV is simple in structure, function singleness, can't satisfy the growing individual sexual demand of people, for example, existing in-car TV does not have user's administrative mechanism, in car anyone can use in-car TV, for the user of customized some digital sponsored program, can't ensure that program watches the privacy of content, simultaneously, for all users that watches, what show on the display screen all is the EPG interface of same style, can not satisfy dissimilar users such as old man, children, young difference is viewed and admired preference crowd's various style demands, thereby has a strong impact on the enthusiasm that people watch Digital Television.
Therefore, need a kind of vehicle-mounted digital television receiving terminal of realizing EPG display styles multi-user management, can provide user management and user right checking for user in the car, guarantee that described vehicle-mounted digital television receiving terminal only could start programme content and watch operation under the authorized user login, saved the energy consumption of vehicle power, can select personalized service fast for the different user of same vehicle-mounted digital television receiving terminal again, as select the EPG interface of different-style, convenient for users to use, satisfied user's personal like.
Summary of the invention
In order to address the above problem, the invention provides a kind of vehicle-mounted digital television receiving terminal of the EPG of realization display styles multi-user management, integrated user management and personalized service function in the vehicle-mounted digital television receiving terminal of, function singleness simple at original structure, the digital television program service of ground digital television broadcast DVB-T only is provided for authorized user, and be provided with different EPG look ﹠ feels for dissimilar customer groups, in the privacy of the content that televiews that guarantees vehicle-mounted user, for vehicle-mounted user provides more pleasant visual enjoyment.
According to an aspect of the present invention, a kind of vehicle-mounted digital television receiving terminal of the EPG of realization display styles multi-user management is provided, comprise user's input module, user log-in block, the user right authentication module, demultiplexing module, EPG information analysis module, display driver module and LCD LCDs, described user log-in block and described user's input module, the user right authentication module connects respectively, described demultiplexing module is connected with described EPG information analysis module, described display driver module and described user right authentication module, described EPG information analysis module is connected respectively with described LCD LCDs, user log-in block is forwarded to described user right authentication module with the user profile of described user's input module input, after described user right authentication module checking is passed through, described user right authentication module obtains the EPG Template Information of user's correspondence from the EPG ATL, described demultiplexing module and described EPG information analysis module start demultiplexing and the operation of EPG information analysis of digital TV broadcast signal, and described display driver module is presented at the EPG information combination that described EPG Template Information and described EPG information analysis module parses obtain on the described LCD LCDs.
More specifically, the vehicle-mounted digital television receiving terminal of described realization EPG display styles multi-user management further comprises: user's input module, receive user profile and control information that the user imports by the button on remote controller or the described terminal, described user profile comprises user's name and user cipher; User log-in block, behind described starting terminal, for the user provides the graphic user interface GUI of login, and connect described user's input module receiving described user profile, and connect the user right authentication module to receive the allowance user log messages that described user right authentication module sends; Memory, each user profile prestores, wherein each user profile comprises a plurality of attributes: user's name, user cipher, EPG template style, described memory also comprises the EPG ATL, the EPG Template Information that has comprised various EPG template styles in the described EPG ATL, described EPG Template Information are the data file of extensible stylesheet table transfer language XSLT; The user right authentication module, connect described user log-in block and described memory, user's name and the user cipher of each user profile that prestores in the user's name in the user profile that will receive from described user log-in block and user cipher and the described memory mate, after coupling is passed through, send allowance user log messages to user log-in block, and from described EPG ATL, seek the EPG Template Information corresponding with described user's EPG template style, the EPG Template Information that searches out is sent to the display driver module of described terminal; The attribute modification module, connect described user log-in block, after the allowance user log messages that the described user right authentication module that receives described user log-in block forwarding sends, the control information of importing by the button on remote controller or the described terminal according to the user, enter the graphic user interface GUI of attribute modification, be convenient to the user and carry out attribute modification and amended attribute is kept in the described memory; The front end receiver module, connect described user log-in block, receive the allowance user log messages of described user right authentication module transmission when described user log-in block after, to the digital TV broadcast signal of the terrestrial wireless digital television broadcasting DVB-T that receives carry out that modulation, matched filtering and equilibrium, differential coding, symbol-byte mapping, convolution deinterleave, reed-solomon RS decoder, sync byte counter-rotating with go randomization operation, flow with output transport stream TS; Demultiplexing module, connect described front end receiver module to receive described TS stream, and be digitized audio message, digital video information and EPG information with described TS stream demultiplexing, wherein said EPG information is carried among network information table NIT, the BAT bouquet association table BAT or service information list SDT of business information SI of described TS stream, and the demultiplexing of EPG information is that the control information of the request EPG that sent by the button on remote controller or the described terminal by the user triggers; EPG information analysis module, connect described demultiplexing module to receive the EPG information of demultiplexing, and the EPG information of described demultiplexing resolved, the EPG information after the parsing comprises programme, current playing program, program description, programme labeling information, program predetermination information and parental ratings control information; The voice data processing module connects demultiplexing module to receive digitized audio message, and digitized audio message is carried out audio decompression, digital-to-analogue conversion operation, and the output simulated audio signal; The video data processing module connects demultiplexing module with receiving digital video information, and digital video information is carried out the video decompression operation, and the digital video signal after the output decompression; The left and right sound channels loud speaker connects the voice data processing module to receive simulated audio signal and to export left channel audio signal and the right channel audio signal corresponding with simulated audio signal respectively; The display driver module, connect the video data processing module, user right authentication module and EPG information analysis module, when the normal play program, digital video signal after the receiving video data processing module decompresses, and the digital video signal after will decompressing drives processing to export the video data that is fit to the demonstration of LCD LCDs, when the user sends the control information of request EPG by the button on remote controller or the described terminal, receive the EPG Template Information of the XSLT of user right authentication module transmission, EPG information after the parsing that reception EPG information analysis module sends, and with the EPG Template Information of described XSLT and the EPG information after resolving make up, show the EPG interface after the combination; The LCD LCDs connects the EPG interface after display driver module and reception drive processed video data or combination, and the EPG interface after described video data or the described combination is shown at its screen; Wherein, described simulated audio signal, digital video signal are current playing program corresponding audio, video data; Wherein, described EPG information comprises programme, current playing program, program description, programme labeling information, program predetermination information and parental ratings control information; Described programme comprises each programm name and the reproduction time according to time sequence play of each TV station; Described current playing program refers to programm name and the reproduction time that each TV station's current slot is just being play; Described program description is the specific descriptions data to respective program, and described specific descriptions data comprise user comment, related web site link; Described programme labeling information is the classification information that corresponding program is referred to respective classes; Described program predetermination information refers to the relevant information of the described hot programs of announcing in advance for convenience of the terminal use looks forward to the prospect the later hot programs of soon playing, and comprises programm name, reproduction time, focus content; Described parental ratings control information refers in order to control children to watching of programme content the class information of each program grade; Wherein, user's input module, user log-in block, memory, user right authentication module, attribute modification module, front end receiver module, demultiplexing module, EPG information analysis module, voice data processing module, video data processing module are arranged on the automobile instrument panel below, described left and right sound channels loud speaker is arranged on the vehicle right and left A post, and described display driver module, LCD LCDs are arranged on automobile instrument panel centre position.
More specifically, the vehicle-mounted digital television receiving terminal of described realization EPG display styles multi-user management further comprises: described EPG template also comprises the special column administration page, and the project that described special column administration page relates to comprises recording program, program look back, the customized advertisement of operator.
More specifically, the vehicle-mounted digital television receiving terminal of described realization EPG display styles multi-user management further comprises: wherein, described EPG information is carried among network information table NIT, the BAT bouquet association table BAT of business information SI of described TS stream or the service information list SDT and comprises, described EPG information is divided into a plurality of business description information, described business description information is placed among the descriptor Descriptor transmits, to transmit among the described descriptor section of the being placed on Section, described section be placed in the sublist transmit, sublist is placed among table NIT, BAT or the SDT.
More specifically, the vehicle-mounted digital television receiving terminal of described realization EPG display styles multi-user management further comprises: described TS stream is made up of packet header and load, described packet header comprises a sync byte SYNC1 and three other bytes, described three other bytes are used for traffic identification, scrambling and control information, described load comprises the MPEG-2 data of 184 bytes, specifically being distributed as of three other bytes in described packet header, 1 transmission error code indication bit position, 1 net amount is according to initial indication bit position, unit, 1 is transmitted the priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bit position, control bit position, 2 self adaptation districts and 4 continuous counter bits.
Description of drawings
Below with reference to accompanying drawing embodiment of the present invention are described, wherein:
The block diagram of the vehicle-mounted digital television receiving terminal of the realization EPG display styles multi-user management that Fig. 1 illustrates according to an embodiment of the present invention.
Wherein, 1, user's input module; 2, user log-in block; 3, memory; 4, user right authentication module; 5, attribute modification module; 6, front end receiver module; 7, demultiplexing module; 8, EPG information analysis module; 9, voice data processing module; 10, video data processing module; 11, left and right acoustic channels loud speaker; 12, display driver module; 13, LCD LCD.
Embodiment
Below with reference to accompanying drawings the embodiment of the vehicle-mounted digital television receiving terminal of EPG display styles multi-user management that realizes of the present invention is elaborated.
Fig. 1 illustrates the block diagram of the vehicle-mounted digital television receiving terminal of the realization EPG display styles multi-user management that illustrates according to an embodiment of the present invention.Wherein said vehicle-mounted digital television receiving terminal comprises: user's input module 1, user log-in block 2, user right authentication module 4, demultiplexing module 7, EPG information analysis module 8, display driver module 12 and LCD LCDs 13, described user log-in block 2 and described user's input module 1, user right authentication module 4 connects respectively, described demultiplexing module 7 is connected with described EPG information analysis module 8, described display driver module 12 and described user right authentication module 4, described EPG information analysis module 8 is connected respectively with described LCD LCDs 13, user log-in block 2 is forwarded to described user right authentication module 4 with the user profile of described user's input module 1 input, after described user right authentication module 4 checkings are passed through, described user right authentication module 4 obtains the EPG Template Information of user's correspondence from the EPG ATL, described demultiplexing module 7 and described EPG information analysis module 8 starts demultiplexing and the operation of EPG information analysis of digital TV broadcast signals, and described display driver module 13 is resolved the EPG information combination that obtains with described EPG Template Information and described EPG information analysis module 8 and is presented on the described LCD LCDs 13.Further, the vehicle-mounted digital television receiving terminal of described realization EPG display styles multi-user management also comprises: user's input module 1, receive user profile and control information that the user imports by the button on remote controller or the described terminal, described user profile comprises user's name and user cipher; User log-in block 2, behind described starting terminal, the graphic user interface GUI of login is provided for the user, and connect described user's input module 1 receiving described user profile, and connect user right authentication module 4 to receive the allowance user log messages that described user right authentication module 4 sends; Memory 3, each user profile prestores, wherein each user profile comprises a plurality of attributes: user's name, user cipher, EPG template style, described memory also comprises the EPG ATL, the EPG Template Information that has comprised various EPG template styles in the described EPG ATL, described EPG Template Information are the data file of extensible stylesheet table transfer language XSLT; User right authentication module 4, connect described user log-in block 2 and described memory 3, user's name and the user cipher of each user profile that prestores in the user's name in the user profile that will receive from described user log-in block 2 and user cipher and the described memory 3 mate, after coupling is passed through, send allowance user log messages to user log-in block 2, and from described EPG ATL, seek the EPG Template Information corresponding with described user's EPG template style, the EPG Template Information that searches out is sent to the display driver module 12 of described terminal; Attribute modification module 5, connect described user log-in block 2, after the allowance user log messages that the described user right authentication module 4 that receives described user log-in block 2 forwardings sends, the control information of importing by the button on remote controller or the described terminal according to the user, enter the graphic user interface GUI of attribute modification, be convenient to the user and carry out attribute modification and amended attribute is kept in the described memory 3; Front end receiver module 6, connect described user log-in block 2, receive the allowance user log messages of described user right authentication module 4 transmissions when described user log-in block 2 after, to the digital TV broadcast signal of the terrestrial wireless digital television broadcasting DVB-T that receives carry out that modulation, matched filtering and equilibrium, differential coding, symbol-byte mapping, convolution deinterleave, reed-solomon RS decoder, sync byte counter-rotating with go randomization operation, flow with output transport stream TS; Demultiplexing module 7, connect described front end receiver module 6 to receive described TS stream, and be digitized audio message, digital video information and EPG information with described TS stream demultiplexing, wherein said EPG information is carried among network information table NIT, the BAT bouquet association table BAT or service information list SDT of business information SI of described TS stream, and the demultiplexing of EPG information is that the control information of the request EPG that sent by the button on remote controller or the described terminal by the user triggers; EPG information analysis module 8, connect described demultiplexing module 7 to receive the EPG information of demultiplexing, and the EPG information of described demultiplexing resolved, the EPG information after the parsing comprises programme, current playing program, program description, programme labeling information, program predetermination information and parental ratings control information; Voice data processing module 9 connects demultiplexing module 7 to receive digitized audio message, and digitized audio message is carried out audio decompression, digital-to-analogue conversion operation, and the output simulated audio signal; Video data processing module 10 connects demultiplexing module 7 with receiving digital video information, and digital video information is carried out the video decompression operation, and the digital video signal after the output decompression; Left and right sound channels loud speaker 11 connects voice data processing module 9 to receive simulated audio signal and to export left channel audio signal and the right channel audio signal corresponding with simulated audio signal respectively; Display driver module 12, connect video data processing module 10, user right authentication module 4 and EPG information analysis module 8, when the normal play program, digital video signal after receiving video data processing module 10 decompresses, and the digital video signal after will decompressing drives processing to export the video data that is fit to 13 demonstrations of LCD LCDs, when the user sends the control information of request EPG by the button on remote controller or the described terminal, receive the EPG Template Information of the XSLT of user right authentication module 4 transmissions, EPG information after the parsing that reception EPG information analysis module 8 sends, and with the EPG Template Information of described XSLT and the EPG information after resolving make up, show the EPG interface after the combination; LCD LCDs 13 connects the EPG interface after display driver module 12 and reception drive processed video data or combination, and the EPG interface after described video data or the described combination is shown at its screen; Wherein, described simulated audio signal, digital video signal are current playing program corresponding audio, video data; Wherein, described EPG information comprises programme, current playing program, program description, programme labeling information, program predetermination information and parental ratings control information; Described programme comprises each programm name and the reproduction time according to time sequence play of each TV station; Described current playing program refers to programm name and the reproduction time that each TV station's current slot is just being play; Described program description is the specific descriptions data to respective program, and described specific descriptions data comprise user comment, related web site link; Described programme labeling information is the classification information that corresponding program is referred to respective classes; Described program predetermination information refers to the relevant information of the described hot programs of announcing in advance for convenience of the terminal use looks forward to the prospect the later hot programs of soon playing, and comprises programm name, reproduction time, focus content; Described parental ratings control information refers in order to control children to watching of programme content the class information of each program grade; Wherein, user's input module 1, user log-in block 2, memory 3, user right authentication module 4, attribute modification module 5, front end receiver module 6, demultiplexing module 7, EPG information analysis module 8, voice data processing module 9, video data processing module 10 are arranged on the automobile instrument panel below, described left and right sound channels loud speaker 11 is arranged on the vehicle right and left A post, and described display driver module 12, LCD LCDs 13 are arranged on automobile instrument panel centre position.
Wherein, the main effect of EPG is exactly the menu that the user utilizes EPG to provide, and can select the multicast channel of oneself liking; The video frequency program that program request oneself is liked; The song that online performance is liked oneself; Search the various information that IPTV provides, comprise life information, entertainment information, educational information, sport information etc.; The menu that the user also can use EPG to provide is ordered the program of oneself liking; Even can pay water rate, the electricity charge, carry out the transaction of ecommerce etc. by the menu that EPG provides; The user can also utilize the EPG menu to check the additional information of program, for example to introduction of programme content introduction, performer and director etc.; Parental control function by providing in the EPG menu simultaneously, the head of a family can be limited some program, to child open all watch authority.
Wherein, Reed Solomon code (lining institute sign indicating number, Reed-solomon codes is called for short RS codes) is a kind of chnnel coding of forward error corrigendum, and is effective to the multinomial that is produced by correction over-sampling data.Cataloged procedure at first asks redundant to these multinomials on a plurality of points, then with its transmission or storage.Must sample and make multinomial overdetermination (cross limit) the polynomial this essential value that exceeds.When receiver correct receive enough points after, it just can recover original multinomial, even have a lot by the noise jamming distortion on the multinomial that receives.Reed Solomon code is widely used in various commercial uses, and the most significant is use on CD, DVD and Blu-ray Disc; In transfer of data, it also is used to DSL and WiMAX; DVB and ATSC its figure that also flashing in the broadcast system; In computer science, it is the important member of layer 6 standard RAID.Reed Solomon code is fixed length code, this means that the data of a regular length input will be processed into the output data of a regular length.For example, in (255,223) RS coding, 223 Read-Solomon incoming symbols (each symbol has 8 bits) are encoded into 255 output symbols.Most of Read-Solomon error corrections coding flow processs are architectonicals, this means that some is comprising the primitive form of importing data in the code word of output.Symbol size by in 8 bits sign indicating number to force code length (code length) the longest be 255 symbols.
Wherein, it is available that the in-car TV liquid crystal display screen has a plurality of indexs: 1, some distance, point is apart from the distance that generally refers between adjacent two picture elements of display screen, under the certain prerequisite of screen size, the point distance is the more clear exquisiteness of the small screen more, point is apart from being the data that drawn divided by resolution by effective area, and the point of 0.279mm is apart from just having produced very fine and smooth picture concerning general liquid crystal display screen; 2, resolution, resolution are most important one of the technical indicators of choosing of all on-board liquid crystal televisions, and resolution is more high, the effect that shows is more good, because the size of on-board liquid crystal television is all smaller, it has been exactly good liquid crystal display screen that resolution can reach 720 * 480, and the definition of picture is also high; 3, brightness, the high-high brightness of on-board liquid crystal television is decided by backlight usually, and at present generally all between 250～500cd/m2, the brightness of LCD exceedes height to the brightness value of liquid crystal display screen, and picture is more beautiful, but price can be more expensive; Brightness is low, can feel the screen obfuscation to be lower than the following screen of 250cd/m2, will not select usually; 4, contrast, the contrast of on-board liquid crystal television is also very important, contrast is more high, color will be more bright-coloured saturated, and it is more three-dimensional also to seem, inverted contrast is low, color relation can seem poor ridge, dry plate, usually contrast is proper more than 250:1, the high 400:1 that is roughly, and contrast is lower than 150:1 and has not just selected; 5, visible angle, visible angle is exactly the maximum angle that human eye can be watched displaying contents on the screen, this numerical value is to be the bigger the better, if visible angle is smaller, the words that user's sight line (that is to say not over against screen) a little more partially, picture will distortion, even can't watch, the visible angle of more satisfactory on-board liquid crystal television should be more than 60 degree (level is about screen); at all vertical downwards angle of visibility is more than 70 degree, be in the consideration of cost, it is 75 degree that liquid crystal display screen can be designed to upward angle of visibility usually, and downwards angle of visibility is 55 degree, if do not carry out technical finesse, such in-car TV upward angle of visibility is wasted, and downwards angle of visibility can't meet the demands again, thereby on-board liquid crystal television need fall to shield processing, be about to go up downwards angle of visibility and turn, to satisfy the use of vehicle environment; 6, response time, this index is important, whether because it is related to picture conditions of streaking can appear, reaction or response time refer to that liquid crystal is dark or by the bright required time of blackout by bright commentaries on classics, in general the response time is more short more good, time is more short, when seeing mobile picture, just can not feel similar ghost or dilatory vestige, according to the reaction time of human eye, if the response time is above 100 milliseconds, the hysteresis phenomenon that moving image will occur, the liquid crystal display screen standard response time major part of dispatching from the factory at present is between the 50-80 millisecond, the reaction time that the high-grade LCD of minority but also arranged mostly about 25～30 milliseconds, if the response time of LCD hangover about 80 milliseconds, can not appear when watching video substantially; 7, color, on-board liquid crystal television is important certainly color representation degree, we know that natural any color all is made up of three kinds of Essential colour of red, green, blue, each of LCD independently pixel color is to be controlled by three kinds of Essential colour of red, green, blue (R, G, B), the LCD that most of manufacturers produce is come out, each Essential colour (R, G, B) reaches 6, i.e. 64 kinds of expressivities, so each independently pixel 64 * 64 * 64=262144 kind color is just arranged.
In addition, the vehicle-mounted digital television receiving terminal of described realization EPG display styles multi-user management further comprises: described EPG template also comprises the special column administration page, and the project that described special column administration page relates to comprises recording program, program look back, the customized advertisement of operator.Television operator can be according to client's demand, and regularly the content that described special column administration page is related to is adjusted, to realize the maximization of economic well-being of workers and staff.
In addition, the vehicle-mounted digital television receiving terminal of described realization EPG display styles multi-user management further comprises: wherein, described EPG information is carried among network information table NIT, the BAT bouquet association table BAT of business information SI of described TS stream or the service information list SDT and comprises, described EPG information is divided into a plurality of business description information, described business description information is placed among the descriptor Descriptor transmits, to transmit among the described descriptor section of the being placed on Section, described section be placed in the sublist transmit, sublist is placed among table NIT, BAT or the SDT.
In addition, the vehicle-mounted digital television receiving terminal of described realization EPG display styles multi-user management further comprises: described TS stream is made up of packet header and load, described packet header comprises a sync byte SYNC1 and three other bytes, described three other bytes are used for traffic identification, scrambling and control information, described load comprises the MPEG-2 data of 184 bytes, specifically being distributed as of three other bytes in described packet header, 1 transmission error code indication bit position, 1 net amount is according to initial indication bit position, unit, 1 is transmitted the priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bit position, control bit position, 2 self adaptation districts and 4 continuous counter bits.
Wherein, the full name of TS then is Transport Stream.MPEG2-PS is mainly used in the fixedly program of duration that has of storage, and as the DVD film, MPEG-TS then is mainly used in the program of real-time transmission, such as the TV programme of broadcasting in real time.The main distinction of these two kinds of forms is, if the front one of the vob file on the DVD is cut (perhaps simply being exactly corrupted data), will cause whole file to decode so, and TV programme is whenever to turn on television set can both decode (watching), so to be exactly requirement begin all can independently decode from arbitrary fragment of video flowing the characteristics of MPEG2-TS form.
Adopt the vehicle-mounted digital television receiving terminal of realization EPG display styles multi-user management of the present invention, improved the single in-car TV receiving system of original structure greatly, for existing in-car TV receiving system has increased multinomial function, as user management and personalized service, use the vehicle-mounted digital television receiving terminal of realization EPG display styles multi-user management of the present invention, on the one hand, the a plurality of users that watch same vehicle-mounted digital television receiving terminal are effectively managed, on the other hand, for dissimilar users customized the EPG interface of different-style, cater to dissimilar crowds' instructions for use and personal preference, promoted production development and the market development of in-car TV terminal.
Be understandable that though the present invention with the preferred embodiment disclosure as above, yet above-described embodiment is not in order to limit the present invention.For any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention according to any simple modification, equivalent variations and the modification that technical spirit of the present invention is done above embodiment, all still belongs in the scope of technical solution of the present invention protection.
Claims (5)
1. vehicle-mounted digital television receiving terminal of realizing EPG display styles multi-user management is characterized in that described terminal comprises:
User's input module, user log-in block, the user right authentication module, demultiplexing module, EPG information analysis module, display driver module and LCD LCDs, described user log-in block and described user's input module, described user right authentication module connects respectively, described demultiplexing module is connected with described EPG information analysis module, described display driver module and described user right authentication module, described EPG information analysis module is connected respectively with described LCD LCDs, user log-in block is forwarded to described user right authentication module with the user profile of described user's input module input, after described user right authentication module checking is passed through, described user right authentication module obtains the EPG Template Information of user's correspondence from the EPG ATL, described demultiplexing module and described EPG information analysis module start demultiplexing and the operation of EPG information analysis of digital TV broadcast signal, and described display driver module is presented at the EPG information combination that described EPG Template Information and described EPG information analysis module parses obtain on the described LCD LCDs.
2. the vehicle-mounted digital television receiving terminal of realization EPG display styles multi-user management as claimed in claim 1 is characterized in that, also comprises:
Described user's input module receives user profile and the control information that the user imports by the button on remote controller or the described terminal, and described user profile comprises user's name and user cipher;
Described user log-in block is behind described starting terminal, the graphic user interface GUI of login is provided for the user, and connect described user's input module receiving described user profile, and connect the user right authentication module to receive the allowance user log messages that described user right authentication module sends;
Memory, each user profile prestores, wherein each user profile comprises a plurality of attributes: user's name, user cipher, EPG template style, described memory also comprises the EPG ATL, the EPG Template Information that has comprised various EPG template styles in the described EPG ATL, described EPG Template Information are the data file of extensible stylesheet table transfer language XSLT;
The user right authentication module connects described user log-in block and described memory, user's name and the user cipher of each user profile that prestores in the user's name in the user profile that will receive from described user log-in block and user cipher and the described memory mate, after coupling is passed through, send allowance user log messages to user log-in block, and from described EPG ATL, seek the EPG Template Information corresponding with described user's EPG template style, the EPG Template Information that searches out is sent to the display driver module of described terminal;
The attribute modification module, connect described user log-in block, after the allowance user log messages that the described user right authentication module that receives described user log-in block forwarding sends, the control information of importing by the button on remote controller or the described terminal according to the user, enter the graphic user interface GUI of attribute modification, be convenient to the user and carry out attribute modification and amended attribute is kept in the described memory;
The front end receiver module, connect described user log-in block, receive the allowance user log messages of described user right authentication module transmission when described user log-in block after, to the digital TV broadcast signal of the terrestrial wireless digital television broadcasting DVB-T that receives carry out that modulation, matched filtering and equilibrium, differential coding, symbol-byte mapping, convolution deinterleave, reed-solomon RS decoder, sync byte counter-rotating with go randomization operation, flow with output transport stream TS;
Described demultiplexing module connects described front end receiver module to receive described TS stream, and be digitized audio message, digital video information and EPG information with described TS stream demultiplexing, wherein described EPG information is carried among network information table NIT, the BAT bouquet association table BAT or service information list SDT of business information SI of described TS stream, and the demultiplexing of EPG information is that the control information of the request EPG that sent by the button on remote controller or the described terminal by the user triggers;
Described EPG information analysis module connects described demultiplexing module to receive the EPG information of demultiplexing, and the EPG information of described demultiplexing resolved, the EPG information after the parsing comprises programme, current playing program, program description, programme labeling information, program predetermination information and parental ratings control information;
The voice data processing module connects demultiplexing module to receive digitized audio message, and digitized audio message is carried out audio decompression, digital-to-analogue conversion operation, and the output simulated audio signal;
The video data processing module connects demultiplexing module with receiving digital video information, and digital video information is carried out the video decompression operation, and the digital video signal after the output decompression;
The left and right sound channels loud speaker connects the voice data processing module to receive simulated audio signal and to export left channel audio signal and the right channel audio signal corresponding with simulated audio signal respectively;
Described display driver module connects the video data processing module, user right authentication module and EPG information analysis module, when the normal play program, digital video signal after the receiving video data processing module decompresses, and the digital video signal after will decompressing drives processing to export the video data that is fit to the demonstration of LCD LCDs, when the user sends the control information of request EPG by the button on remote controller or the described terminal, receive the EPG Template Information of the extensible style language conversion XSLT form of user right authentication module transmission, EPG information after the parsing that reception EPG information analysis module sends, and with the EPG Template Information of XSLT form and the EPG information after resolving make up, show the EPG interface after the combination;
Described LCD LCDs connects the EPG interface after display driver module and reception driving processed video data or the combination, and the EPG interface after described video data or the described combination is shown at its screen;
Wherein, described simulated audio signal, described digital video signal are current playing program corresponding audio, video data;
Wherein, described EPG information comprises programme, current playing program, program description, programme labeling information, program predetermination information and parental ratings control information; Described programme comprises each programm name and the reproduction time according to time sequence play of each TV station; Described current playing program refers to programm name and the reproduction time that each TV station's current slot is just being play; Described program description is the specific descriptions data to respective program, and described specific descriptions data comprise user comment, related web site link; Described programme labeling information is the classification information that corresponding program is referred to respective classes; Described program predetermination information refers to the relevant information of the described hot programs of announcing in advance for convenience of the terminal use looks forward to the prospect the later hot programs of soon playing, and comprises programm name, reproduction time, focus content; Described parental ratings control information refers in order to control children to watching of programme content the class information of each program grade;
Wherein, user's input module, user log-in block, memory, user right authentication module, attribute modification module, front end receiver module, demultiplexing module, EPG information analysis module, voice data processing module, video data processing module are arranged on the automobile instrument panel below, the left and right sound channels loud speaker is arranged on the vehicle right and left A post, and display driver module, LCD LCDs are arranged on automobile instrument panel centre position.
3. the vehicle-mounted digital television receiving terminal of realization as claimed in claim 2 EPG display styles multi-user management is characterized in that:
Described EPG template also comprises the special column administration page, and the project that described special column administration page relates to comprises recording program, program look back, the customized advertisement of operator.
4. the vehicle-mounted digital television receiving terminal of realization as claimed in claim 2 EPG display styles multi-user management is characterized in that:
Comprise among network information table NIT, the BAT bouquet association table BAT of the described business information SI that described EPG information is carried at described TS stream or the service information list SDT, described EPG information is divided into a plurality of business description information, described business description information is placed among the descriptor Descriptor transmits, to transmit among the described descriptor section of the being placed on Section, described section be placed in the sublist transmit, sublist is placed among table NIT, BAT or the SDT.
5. the vehicle-mounted digital television receiving terminal of realization as claimed in claim 2 EPG display styles multi-user management is characterized in that:
Described TS stream is made up of packet header and load, described packet header comprises a sync byte SYNC1 and three other bytes, described three other bytes are used for traffic identification, scrambling and control information, described load comprises the MPEG-2 data of 184 bytes, specifically being distributed as of three other bytes in described packet header, 1 transmission error code indication bit position, 1 net amount is according to initial indication bit position, unit, 1 is transmitted the priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bit position, control bit position, 2 self adaptation districts and 4 continuous counter bits.
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| CN103237266A (en) * | 2013-05-13 | 2013-08-07 | 无锡北斗星通信息科技有限公司 | Password management device for digital TV (Television) |
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| CN105187501A (en) * | 2015-08-07 | 2015-12-23 | 北京思特奇信息技术股份有限公司 | Menu display method and system of service system based on B/S architecture |
| CN105681851A (en) * | 2016-03-18 | 2016-06-15 | 深圳市轱辘软件开发有限公司 | Information processing method and device |
| CN105978604A (en) * | 2016-04-27 | 2016-09-28 | 陕西科技大学 | Power line carrier wave communication custom coding system of dual-input mode and method thereof |
| CN105978604B (en) * | 2016-04-27 | 2019-12-17 | 西安易筑机电工业化科技有限公司 | power line carrier communication custom coding system and method with double input modes |
| CN111641542A (en) * | 2020-05-27 | 2020-09-08 | 东风柳州汽车有限公司 | Adaptive adjustment control method and device, gateway terminal and storage medium |
| CN111641542B (en) * | 2020-05-27 | 2021-08-06 | 东风柳州汽车有限公司 | Adaptive adjustment control method and device, gateway terminal and storage medium |
| CN115185428A (en) * | 2022-05-06 | 2022-10-14 | 国能浙能宁东发电有限公司 | Password verification system and method for configuration picture and electronic equipment |
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