A kind of satellite TV set-top boxes and corresponding control method
Technical field
The present invention relates to a kind of satellite TV set-top boxes and corresponding control method.
Background technology
Along with the development of information technology, live broadcasting satellite Set Top Box is promoted greatly in rural areas, but due to market mountain vallage machine, flight data recorder gets more and more, the box even more having country's bid is brought into city and uses, and impacts the market of local wired digital set-top box, causes confusion to market and management.
Application number be 201210093138.1 Chinese patent application " satellite TV set-top boxes " disclose a kind of satellite TV set-top boxes, including processor, radio-frequency module, memory access, power supply and input-output equipment, GPRS electronic device also includes a GPRS antenna, described GPRS antenna includes: a medium substrate, one unipole antenna conductor, it is arranged on described medium substrate surface, including a current feed department, one first conductive branches and a galianconism is extended by described current feed department, one second conductive branches is formed in described first conductive branches centre position, what described first conductive branches was relatively isolated, a resonance arm is set and for connecting a loading element of the first conductive branches and resonance arm.Relatively existing spiral technology GPRS antenna, the antenna model selection in conjunction with low-loss medium substrate and optimization designs, and designs the flat GPRS antenna of low cost, the convenient GPRS antenna being combined with electronic equipment.But, the mode existing defects GPRS positioning precision adopting GPRS module location is low, it is also possible to there is situation about can not position.
Application number be 201110360171.1 Chinese patent application " a kind of wideband direct broadcast satellite TV set top box region control method and system " disclose a kind of wideband direct broadcast satellite TV set top box region control method and control system, the method adopts GPS alignment system to obtain the positional information of set top box, and positional information processed judge whether in the scope that radio and television operator specifies, it is determined whether allow its rating.This system includes obtaining the GPS of the on-site positional information of Set Top Box, judging the main control unit whether the Set Top Box position whether region decision unit in the scope that operator specifies, control Set Top Box normally use;The positioning result of described GPS is connected with described region decision unit by wire.The present invention, under the premise not changing the existing hardware of live broadcasting satellite Set Top Box in a large number, with GPRS module that is more cheap and that use wider GPS module replacement to need base station to support, it is achieved Region control function, has saved hardware cost, and has used wider general.But the content of this patent disclosure is less, and antenna part sends the result after positioning calculation to Set Top Box, causes transmitting path remote, it is necessary to the defects such as independent data wire, should use relatively difficult.Additionally, due to Set Top Box lacks the module that information is mutual, cause that a lot of satellite television service can not realize.
The Chinese patent application that application number is 201610050404.0 " a kind of LNB module for receiving satellite TV signal and corresponding satellite TV set-top boxes " of the applicant's application discloses a kind of LNB module for receiving satellite TV signal, described LNB module includes satellite TV signal and receives unit, for receiving satellite TV signal, output satellite tv-if signal, described LNB module also includes navigation satellite signal and receives unit, and described navigation satellite signal receives unit and is used for receiving navigation satellite signal;Described satellite television medium-frequency signal outputs signals to coaxial cable with described navigation satellite signal after combiner mixes, and described navigation satellite signal is Beidou satellite navigation system signal.After adopting technical scheme, between satellite TV set-top boxes and LNB, line is simple, it is possible to effectively solves the region limits problem of satellite TV set-top boxes, and saves cost.But, this invention mainly in the improvement of location, lacks the module that information is mutual, causes that a lot of satellite television service can not realize.
At present, conventional LNB(LowNoiseBlock, LNA module, it is commonly called as " tuner ") generally include switching headstock and be located at the waveguide cylinder of lower head, connect trumpet type interface generally again below guided wave cylinder, be commonly called as wave collecting device.Usual wave collecting device volume is bigger.The effect of tuner is to receive satellite TV signal, and carries out channel selection, signal amplification and down conversion process, the signal that final output is stable.The LNB satellite-signal to receiving exports satellite TV set-top boxes by coaxial cable after carrying out LNA process and is received decoding, generates the program that video signal selects to television for play user.
Summary of the invention
It is an object of the invention to provide a kind of satellite TV set-top boxes can being accurately positioned and information interactive function can be met.
The present invention provides a kind of satellite TV set-top boxes, and described Set Top Box includes direct broadcasting satellite signal processing circuit, and described Set Top Box also includes GNSS satellite signal processing circuit and communication module.
Further, described Set Top Box also includes interaction data processing module, and described interaction data processing module carries out data interaction by described communication module with the external world.
Further, described communication module is GPRS communication module.
Further, described communication module is GPRS communication module is WIFI, bluetooth or cable LAN.
Further, described communication module receives the secondary satellite location data of GNSS satellite signal, for described GNSS satellite signal processing circuit.
Further, described Set Top Box also includes geographic area detection and controls module, the current location information of the described Set Top Box that described Set Top Box obtains according to described GNSS satellite signal processing circuit, judge that presently described Set Top Box is whether in the use region allowed, if, normally receive demodulation outgoing television signal, otherwise, limit output satellite TV signal.
Further, described Set Top Box also includes allowing to use the band of position to arrange module, and described permission uses the band of position to arrange module and uses the band of position by the permission of the remotely located described Set Top Box of described communication module.
The present invention also provides for a kind of control method for satellite TV set-top boxes, and described method includes, the positional information at Set Top Box place described in described positioning calculation;Judge whether described Set Top Box is positioned at the permission use region of setting according to described positional information;If described Set Top Box does not use in region in the permission of described setting, described Set Top Box restriction output satellite TV programme, obtain and new allow to use region and described new permission is set uses region to described Set Top Box.
Further, described positional information is high precision position information.
After adopting technical scheme, satellite TV set-top boxes can be accurately positioned and can meet information interactive function.
Accompanying drawing explanation
Fig. 1 is the composition frame chart of the embodiment of the present invention;
Fig. 2 is the functional framework figure of Set Top Box part;
Fig. 3 is the communication network topology figure of satellite TV set-top boxes user and satellite set top box operator management platform;
Fig. 4 is Set Top Box geographic area detection control flow chart.
Detailed description of the invention
Below in conjunction with better embodiment therein, the present invention program is described in detail.
Fig. 1 is the composition frame chart of the embodiment of the present invention, and it includes LNB part and Set Top Box part, and transmission cable can transmitting radio frequency signal and DC power signal.
LNB part is by including antenna A, antenna B, LNB circuit 1, the GNSS circuit 2 of LNB and radio frequency combiner 3, LNB radiofrequency signal and the GNSS radiofrequency signal of GNSS circuit 2 reception of LNB that LNB circuit 1 receives are undertaken closing road by radio frequency combiner 3, send Set Top Box part to by transmission cable.Antenna A and antenna B independently designs, and antenna A is accomplished that the reception of GNSS signal, and antenna B is accomplished that the reception of direct broadcasting satellite signal.The GNSS circuit 2 of LNB part is unidirectional reception circuit, it is therefore an objective to receives satellite navigation framing signal, is not limited to the navigation system signals such as GPS, the Big Dipper, GLONASS, Galileo.
Set Top Box part comprises RF power splitters 4, former direct broadcasting satellite signal processing circuit 5, GNSS satellite signal processing circuit 6, MCU governor circuit 7 and peripheral power supply management circuit 8;RF power splitters 4 by through transmission cable from LNB part radiofrequency signal be divided into two-way, former direct broadcasting satellite signal processing circuit 5 of leading up to carries out the demodulation process of direct broadcasting satellite signal, and GNSS satellite signal processing circuit 6 of leading up to carries out the demodulation process of GNSS signal;MCU governor circuit 7 completes the control function to whole Set Top Box;Communication module 9 carries out data interaction for runing service center with satellite television, and communication module is not limited to wireless WIFI, bluetooth, GPRS, 3G, 4G or even cable LAN, and typically, the present embodiment illustrates with communication module 9 for GPRS communication module;PMU Power Management Unit 8 realizes the power supply of whole LNB part and Set Top Box part being processed and supply.
Fig. 2 is the functional framework figure of Set Top Box part.The function of Set Top Box part includes but not limited to that satellite TV signal reception processes 31, and satellite positioning signal reception processes 32, the detection control 33 of Set Top Box geographic area, and interaction data processes 34.Television set is arrived in satellite TV signal output after satellite TV signal reception processes 31, navigation satellite signal processes through satellite positioning signal reception and generates longitude and latitude positional information after 32 process, and the detection of Set Top Box geographic area controls 33, according to the longitude and latitude positional information received, Set Top Box carried out region limits use.Interaction data processes the 34 various data submitted to operator for the satellite set top box operator information distributing to user and user and business handling etc..
Fig. 3 is the communication network topology figure of satellite TV set-top boxes user and satellite set top box operator management platform.Region A, region B, region C and region A each include some users, and different regions is provided the communication of GPRS communication service, Set Top Box and satellite set top box operator management platform to provide service by mobile operator data switching center by different base stations.
Fig. 4 is Set Top Box geographic area detection control flow chart.First preset, by satellite television service operator, the position range that this Set Top Box allows to use, then the positional information at its place of GNSS satellite signal processing circuit positioning calculation of Set Top Box, typically latitude and longitude information, then according to the position range preset, judge that this Set Top Box current is whether in the use region allowed, if it is, normally receive demodulation outgoing television signal, otherwise, limit output satellite TV signal and point out this Set Top Box of user to use not within the scope of non-permitted.
But, when considering that certain moves reception scene, such as boat-carrying satellite television, Vehicular satellite TV, typical user is fisherman and herdsman, or user moves feelings, the situations such as Set Top Box transfer, it is recurrent thing that Set Top Box uses within the scope of non-permitted, when beyond default use scope, Set Top Box prompting this Set Top Box of user is within the scope of non-permitted, user is reminded can again to apply for allowing to use region, now, user's communication module 9 by Set Top Box, it is typically GPRS module, transmission request redistributes use region to satellite television service operator, satellite television service operator is according to the log-on message of active user and current location, the permission redistributing this Set Top Box uses region, and the permission use region of this Set Top Box is reset by interaction data.After this Set Top Box restarts or terminates restriction reception in real time, user just can normally use this Set Top Box.
Above embodiment only accounts for positioning calculation and the situation at Set Top Box occurs, but actually, intermediate frequency data that Set Top Box can be received by communication module 9 or the ephemeris demodulated, almanac data are sent to the background server of satellite set top box operator, perform positioning calculation.The permission use region of Set Top Box can be remotely located, it is also possible to arranges in set top box side manual operation.
In mobile comm message, broadcasting of data of secondary satellite location is common, information is positioned by secondary satellite, as pseudo range difference data, precise ephemeris data, etc., satellite positioning location resolve can obtain the positioning precision higher than general satellite, now can meet the use occasion of needs precision positioning, as under upstairs house, neighbor user, etc., different application scenarios can be distinguished by precision positioning.
Example described above only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.