CN106998480A - The method and LNB and system of a kind of wideband direct broadcast satellite TV validation-cross - Google Patents
The method and LNB and system of a kind of wideband direct broadcast satellite TV validation-cross Download PDFInfo
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- CN106998480A CN106998480A CN201710149408.9A CN201710149408A CN106998480A CN 106998480 A CN106998480 A CN 106998480A CN 201710149408 A CN201710149408 A CN 201710149408A CN 106998480 A CN106998480 A CN 106998480A
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000012795 verification Methods 0.000 claims abstract description 36
- 230000011664 signaling Effects 0.000 claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 24
- 230000003993 interaction Effects 0.000 claims description 17
- 230000002452 interceptive effect Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 description 33
- 238000010586 diagram Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000000052 comparative effect Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
- H04N21/25816—Management of client data involving client authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0869—Network architectures or network communication protocols for network security for authentication of entities for achieving mutual authentication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
Abstract
The invention discloses a kind of method of wideband direct broadcast satellite TV validation-cross and LNB and system, its method includes：After set top box is connected with direct broadcasting satellite tuner LNB formation signals, LNB obtains the ID data of set top box, and the ID based on set top box carries out legitimate verification to set top box；When LNB checking set top boxes are legal, direct broadcasting satellite signalling channel is set up between set top box and LNB.In embodiments of the present invention, the present invention can be realized to set top box legitimate verification based on LNB, only demonstrate belong to broadcasting and TV authorities mandate set top box can just set up signalling channel, the reception of whole wideband direct broadcast satellite TV signal can be realized based on the signalling channel.
Description
Technical field
The present invention relates to wideband direct broadcast satellite TV technical field, and in particular to a kind of method of wideband direct broadcast satellite TV validation-cross
And set top box and system.
Background technology
With the development of information technology, direct broadcast television satellite tuner is greatly promoted in rural areas, but due to
Market mountain vallage machine, exempt from that positioning set top box is more and more, the set top box for even more having country to call for bid is brought into city and used, and impact is worked as
The market of ground wired digital set-top box, causes confusion to market and management.Thus General Bureau of Radio, Film and Television is proposed with reception GNSS letters
Number direct broadcast television satellite tuner product, its final purpose is that general family provides and meets its technical need in every family to broadcasting and TV
, stable, high-quality, inexpensive product, provide satisfactory product and service to client.
The effect of LNB modules with positioning function is：The wideband direct broadcast satellite TV signal of Ku wave bands can not only be received, is passed through
It is amplified, combining, filtering, down coversion and intermediate frequency amplification etc. signal transacting, then export wideband direct broadcast satellite TV signal
Intermediate-freuqncy signal 950MHz~1450MHz；And GNSS signal can be received simultaneously, and the GNSS signal received is filtered
Ripple, amplification；Finally, DVB or set top box solution will be sent to after direct broadcast television satellite intermediate-freuqncy signal and GNSS signal combining
Adjust.
For each wideband direct broadcast satellite TV terminal user, direct-broadcast satellite television system is only one and receives system
System；The system receives satellite TV signal by outdoor low-converter (namely what is often called LNB), and will be received by radio-frequency cable
TV signal feed-in room in set top box decoded, decoded TV signal then is sent into television set plays out.
At present, this system is the wideband direct broadcast satellite TV reception system of a comparative maturity, existing Rural areas, is led in every family
This system is all used, larger social benefit is brought to vast rural area and outlying district.The system is relative to city
Closed-circuit television system input it is relatively low, it is deep to be welcome by vast rural area and outlying district.Some do not have the manufacturer of qualification
In production relevant device, and sold by underdrain, severe jamming market.Current set top box and LNB can not be interacted
Checking, causes the mountain vallage manufacturer without qualification to copy set top box and LNB etc. easily, and realize that wideband direct broadcast satellite TV is received
Systemic-function, disrupts the market, and adds secure accessing hidden danger.
The content of the invention
It is an object of the present invention to for above-mentioned problem, there is provided ID data are realized between a kind of set top box and LNB
Interaction, limit the set top box without qualification and realize wideband direct broadcast satellite TV reception system function, ensured system access
Security, ensures that validated user uses satellite TV.
In order to realize the purpose of the present invention, present invention offer is a kind of to realize wideband direct broadcast satellite TV validation-cross based on LNB
Method, comprises the following steps：
After set top box is connected with direct broadcasting satellite tuner LNB formation signals, LNB obtains the ID data of set top box, and base
Legitimate verification is carried out to set top box in the ID of set top box；
When LNB checking set top boxes are legal, direct broadcasting satellite signalling channel is set up between set top box and LNB.
The ID data that the LNB obtains set top box include：
The LNB sends ID inquiry requests, and the machine that receiving set up box is fed back based on ID inquiry requests to LNB to set top box
The ID data of top box；Or
The ID data for the set top box that receiving set up box is sent.
Modes of the LNB based on base band transmission obtains the ID data of set top box, or based on subcarrier band transmission
Mode obtains the ID data of set top box.
It is described direct broadcasting satellite signalling channel step is set up between set top box and LNB before also include：
The LNB sends LNB ID data to set top box, and the ID data of the LNB are entered for set top box to LNB legitimacies
Row checking.
The ID data that the LNB sends LNB to set top box include：
The ID querying commands that LNB receiving set up box is sent, LNB feeds back LNB ID numbers based on ID querying commands to set top box
According to.
Accordingly, present invention also offers a kind of LNB, including：
Acquisition module, for after set top box is connected with direct broadcasting satellite tuner LNB formation signals, obtaining the ID of set top box
Data；
Authentication module, legitimate verification is carried out for the ID based on set top box to set top box；
Interactive controlling module, for when LNB checking set top boxes are legal, direct broadcasting satellite letter to be set up between set top box and LNB
Number passage.
The acquisition module includes：
Receiving unit, the ID data of the set top box sent for receiving set up box；
Transmitting element, for sending ID inquiry requests to set top box.
Modes of the LNB based on base band transmission obtains the ID data of set top box, or based on subcarrier band transmission
Mode obtains the ID data of set top box.
The LNB modules also include：
Sending module, the ID data for sending LNB to set top box, the ID data of the LNB are used for set top box and LNB are closed
Method is verified.
The sending module is additionally operable to the ID querying commands of receiving set up box transmission, and is based on ID querying commands to set top box
Feed back LNB ID data.
Accordingly, present invention also offers a kind of system of wideband direct broadcast satellite TV validation-cross, including：
Set top box, when verifying that set top box is legal for LNB, direct broadcasting satellite signal interaction is set up between set top box and LNB and is led to
Road；
LNB, for after set top box is connected with direct broadcasting satellite tuner LNB formation signals, obtaining the ID data of set top box,
And the ID based on set top box carries out legitimate verification to set top box；When verifying that set top box is legal, set up between set top box and LNB
Direct broadcasting satellite signalling channel.
The set top box is additionally operable to obtain LNB ID data, and the ID based on LNB carries out legitimate verification to LNB；Testing
When card LNB is legal, direct broadcasting satellite signal interaction passage is set up between set top box and LNB.
After scheme above, beneficial effects of the present invention include：It is legal to set top box that the present invention can be realized based on LNB
Property checking, only demonstrate and belong to the set top box of broadcasting and TV authorities mandate and can just set up signalling channel, it is logical based on the signal
Road can realize the reception of whole wideband direct broadcast satellite TV signal.Other set top box and LNB can realize certification each other, from
And when having ensured that the equipment of certification each other is all legitimate device, just as the receive capabilities of live behavior TV signal.This
In invention implementation process, legitimate verification is realized by threshold time or threshold number, it is ensured that entirely verification process is more
Secondary handshake procedure.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the method flow diagram that wideband direct broadcast satellite TV validation-cross is carried out based on set top box in the embodiment of the present invention；
Fig. 2 is the system structure diagram of the wideband direct broadcast satellite TV validation-cross in the embodiment of the present invention；
Fig. 3 is the set up box structure schematic diagram in the embodiment of the present invention；
Fig. 4 is the acquisition module structural representation in the set top box in the embodiment of the present invention；
Fig. 5 is the method flow diagram that wideband direct broadcast satellite TV validation-cross is carried out based on LNB in the embodiment of the present invention；
Fig. 6 is the LNB structural representations in the embodiment of the present invention；
Fig. 7 is the acquisition module structural representation in the embodiment of the present invention；
Fig. 8 is the circuit theory diagrams of the system of the wideband direct broadcast satellite TV validation-cross in the embodiment of the present invention；
Fig. 9 is being shown based on the principles controlled with set top box interactive of the LNB under base band transmission pattern in the embodiment of the present invention
Meaning
Figure 10 is the method flow diagram that checking is interacted between LNB and set top box in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The method that wideband direct broadcast satellite TV validation-cross is carried out based on set top box involved by the embodiment of the present invention, in set top box
After being connected with direct broadcasting satellite tuner LNB formation signals, set top box obtains LNB ID data, and the ID based on LNB enters to LNB
Row legitimate verification；When set top box checking LNB is legal, direct broadcasting satellite signal interaction passage is set up between set top box and LNB.
It should be noted that it can initially be installed in wideband direct broadcast satellite TV reception system that the set top box, which carries out verification process,
During complete, such as staff on-site install LNB or configuration set top box when, first have to carry out installation test, install
After test is completed, it can realize the legitimacy certification to LNB based on set top box, so as to ensure that whole wideband direct broadcast satellite TV connects
Receipts system can complete the reception of wideband direct broadcast satellite TV signal based on the reception system.
It should be noted that it can be that such as set top box is opened when normal tv is opened that the set top box, which carries out verification process,
Open, the reception of wideband direct broadcast satellite TV signal is realized by the LNB of connection, it is needed after television system unlatching, carries out LNB's
Verification process, so as to ensure that whole wideband direct broadcast satellite TV reception system can complete wideband direct broadcast satellite TV letter based on the reception system
Number reception.
It should be noted that it can be in normal tv playing process, based on one that the set top box, which carries out verification process,
Time threshold triggers set top box to verify LNB verification process, such as normal play TV is after ten minutes, then is verified,
Or every a hour, reception system carries out one-time authentication etc..
In further implementation process, when set top box obtains LNB ID data, LNB can also obtain the ID numbers of set top box
According to the ID data of the set top box are verified for LNB to set top box legitimacy.After checking legitimacy each other, then
Direct broadcasting satellite signal interaction passage is set up between set top box and LNB, this authentication mode has ensured that authenticating device is all each other
It is legal, it is achieved thereby that the function of the legal reception wideband direct broadcast satellite TV signal of reception system.
The method that wideband direct broadcast satellite TV validation-cross is realized based on LNB involved by the embodiment of the present invention, set top box with
After direct broadcasting satellite tuner LNB formation signal connections, LNB obtains the ID data of set top box, and the ID based on set top box is to machine top
Box carries out legitimate verification；When LNB checking set top boxes are legal, direct broadcasting satellite signalling channel is set up between set top box and LNB.
It should be noted that it can initially be installed in wideband direct broadcast satellite TV reception system that the LNB, which carries out verification process,
Completed in journey, such as when staff on-sites install LNB or configuration set top box, first have to carry out installation test, surveyed installing
After examination is completed, it can realize the legitimacy certification to LNB based on set top box, so as to ensure that whole wideband direct broadcast satellite TV is received
System can complete the reception of wideband direct broadcast satellite TV signal based on the reception system.
It should be noted that it can be that when normal tv is opened, such as set top box is opened that the LNB, which carries out verification process,
The reception of wideband direct broadcast satellite TV signal is realized by the LNB of connection, it is needed after television system unlatching, carries out testing for LNB
Card process, so as to ensure that whole wideband direct broadcast satellite TV reception system can complete wideband direct broadcast satellite TV signal based on the reception system
Reception.
In further implementation process, the ID data of set top box are obtained in LNB, also set top box can obtain LNB ID data
When, the ID data of the LNB are verified for set top box to LNB legitimacies.After checking legitimacy each other, then in machine
Direct broadcasting satellite signal interaction passage is set up between top box and LNB, this authentication mode has ensured that authenticating device is all to close each other
Method, it is achieved thereby that the function of the legal reception wideband direct broadcast satellite TV signal of reception system.
Fig. 1 shows the method flow that wideband direct broadcast satellite TV validation-cross is carried out based on set top box in the embodiment of the present invention
Figure, comprises the following steps：
S101, after set top box and direct broadcasting satellite tuner LNB formation signal be connecteds, set top box acquisition LNB ID data；
In specific implementation process, set top box sends ID querying commands to LNB, and receives the LNB's that LNB feeds back to set top box
ID data.
In specific implementation process, set top box can the mode based on base band transmission to LNB send ID querying commands；Or base
In subcarrier band transmit mode to LNB send ID querying commands.
In specific implementation process, set top box is clocked into waiting, and is sentenced based on threshold time and/or timeout threshold number of times
It is disconnected whether to enter to LNB progress legitimate verifications.
S102, the ID based on LNB carry out legitimate verification to LNB, if checking LNB is legal, into S103, otherwise terminate
Flow；
S103, set top box checking LNB it is legal when, direct broadcasting satellite signal interaction passage is set up between set top box and LNB；
Terminate.
The present invention can be realized to LNB legitimate verifications based on set top box, only demonstrated and belonged to the mandate of broadcasting and TV authorities
LNB can just set up signalling channel, the reception of whole wideband direct broadcast satellite TV signal can be realized based on the signalling channel.In addition
Set top box and LNB can realize certification each other, so that when having ensured the equipment of certification each other and being all legitimate device,
The receive capabilities of wideband direct broadcast satellite TV signal could be realized.In implementation process of the present invention, pass through threshold time or threshold number
To realize legitimate verification, it is ensured that the multiple handshake procedure of whole verification process.
Specifically, Fig. 2 shows the system structure diagram of the wideband direct broadcast satellite TV validation-cross in the embodiment of the present invention,
The system includes：
Set top box, for after set top box is connected with direct broadcasting satellite tuner LNB formation signals, obtaining LNB ID data,
And the ID based on LNB carries out legitimate verification to LNB；When verifying that LNB is legal, direct broadcasting satellite is set up between set top box and LNB
Signal interaction passage；
LNB, for when set top box checking LNB being legal, direct broadcasting satellite signal interaction being set up between set top box and LNB and is led to
Road.
In specific implementation process, the LNB is additionally operable to obtain the ID data of set top box, and the ID based on set top box is to set top box
Legitimacy is verified, after checking set top box is legal, direct broadcasting satellite signal interaction passage is set up between set top box and LNB.
In specific implementation process, set top box sends the ID data of set top box to LNB, and the ID data of the set top box are used for
LNB verifies that set top box sends the ID data of set top box based on ID querying commands to LNB to set top box legitimacy；Or machine
Top box is received after the ID inquiry requests of LNB initiations, and the ID data of set top box are sent to LNB.
System architecture based on Fig. 2, it can also realize as follows：
Set top box, when verifying that set top box is legal for LNB, direct broadcasting satellite signal interaction is set up between set top box and LNB and is led to
Road；LNB, for after set top box is connected with direct broadcasting satellite tuner LNB formation signals, obtaining the ID data of set top box, and base
Legitimate verification is carried out to set top box in the ID of set top box；When verifying that set top box is legal, set up live between set top box and LNB
Satellite-signal passage.In specific implementation process, set top box is additionally operable to obtain LNB ID data, and the ID based on LNB enters to LNB
Row legitimate verification；When verifying that LNB is legal, direct broadcasting satellite signal interaction passage is set up between set top box and LNB.
Accordingly, Fig. 3 shows the set up box structure schematic diagram in the embodiment of the present invention, including：
Acquisition module, for after set top box is connected with direct broadcasting satellite tuner LNB formation signals, obtaining LNB ID numbers
According to；
Authentication module, legitimate verification is carried out for the ID based on LNB to LNB；
Interactive controlling module, for when set top box checking LNB is legal, direct broadcasting satellite letter to be set up between set top box and LNB
Number exchange channels.
Specifically, the Fig. 4 shows the acquisition module structural representation in set top box of the embodiment of the present invention, the acquisition module
Including：
Transmitting element, for sending ID querying commands to LNB；
Receiving unit, the ID data for receiving the LNB that LNB feeds back to set top box.
In specific implementation process, mode of the set top box based on base band transmission sends ID querying commands to LNB；Or based on pair
The mode of carrier frequency band transmission sends ID querying commands to LNB.
Also include in the acquisition module：
Timing threshold cell, for being clocked into waiting after sending ID querying commands in transmitting element, and based on threshold value
Time and/or timeout threshold number of times carry out legitimate verification to judge whether to enter to LNB.
Accordingly, the set top box also includes：
Sending module, the ID data for sending set top box to LNB, the ID data of the set top box are used for LNB to machine top
Box legitimacy is verified.
Accordingly, Fig. 5 shows the method that wideband direct broadcast satellite TV validation-cross is carried out based on LNB in the embodiment of the present invention
Flow chart, the step is as follows：
S501, after set top box and direct broadcasting satellite tuner LNB formation signal be connecteds, the ID data of LNB acquisition set top boxes；
In specific implementation process, the LNB can send ID inquiry requests to set top box, and receiving set up box is inquired about based on ID
Ask the ID data to the LNB set top boxes fed back；Or the ID data of set top box that LNB can be directly transmitted with receiving set up box.
In specific implementation process, the set top box can obtain the ID data of set top box in the way of LNB is based on base band transmission, or
Person LNB obtains the ID data of set top box based on the mode that subcarrier band is transmitted.
In specific implementation process, set top box is clocked into waiting, and is sentenced based on threshold time and/or timeout threshold number of times
It is disconnected whether to enter to LNB progress legitimate verifications.
S502, the ID based on set top box carry out legitimate verification to set top box, if checking set top box is legal, enter
S503, otherwise terminates flow；
S503, LNB checking set top box it is legal when, direct broadcasting satellite signal interaction passage is set up between set top box and LNB；
In specific implementation process, LNB can send LNB ID data to set top box, and the ID data of the LNB are used for set top box
LNB legitimacies are verified.
In specific implementation process, the ID querying commands that LNB can be sent with receiving set up box, LNB is based on ID querying commands
LNB ID data are fed back to set top box.
The present invention can be realized to set top box legitimate verification based on LNB, only demonstrate the set top box for belonging to broadcasting and TV mandate
Signalling channel can be just set up, the reception of whole wideband direct broadcast satellite TV signal can be realized based on the signalling channel.Other machine top
Box and LNB can realize certification each other, so as to when having ensured the equipment of certification each other and being all legitimate device, just make
For the receive capabilities of live behavior TV signal.
Terminate.Accordingly, Fig. 6 shows the LNB structural representations in the embodiment of the present invention, and the LNB includes：
Acquisition module, for after set top box is connected with direct broadcasting satellite tuner LNB formation signals, obtaining the ID of set top box
Data；
Authentication module, legitimate verification is carried out for the ID based on set top box to set top box；
Interactive controlling module, for when LNB checking set top boxes are legal, direct broadcasting satellite letter to be set up between set top box and LNB
Number passage.
Specifically, Fig. 7 shows the acquisition module structural representation in LNB, the acquisition module includes：
Receiving unit, the ID data of the set top box sent for receiving set up box；
Transmitting element, for sending ID inquiry requests to set top box.
In specific implementation process, modes of the LNB based on base band transmission obtains the ID data of set top box, or based on pair load
The mode of ripple frequency band transmission obtains the ID data of set top box.
In specific implementation process, the LNB modules also include：
Sending module, the ID data for sending LNB to set top box, the ID data of the LNB are used for set top box and LNB are closed
Method is verified.Further, the sending module is additionally operable to the ID querying commands of receiving set up box transmission, and based on ID inquiries
Order the ID data that LNB is fed back to set top box.
Specifically, Fig. 8 shows the circuit theory of the system of the wideband direct broadcast satellite TV validation-cross in the embodiment of the present invention
Figure, comprising LNB parts and set top box part, LNB and set top box connect only by a transmission cable 6, wherein：
LNB parts include：Antenna 1, antenna 2, GNSS position receivers unit, LNB satellite TV receptions unit, LNB interactions
Control unit, radio frequency combiner unit and PMU PMUs, PMU PMUs are that whole LNB tuners are supplied
Electricity；
Set top box part mainly includes：Radio frequency branching unit, direct broadcasting satellite signal processing unit, the processing of GNSS positioning signals
Unit, set top box interactive control unit, PMU PMUs and MCU main control circuit units, PMU PMUs can be with
It is that LNB tuners and set top box set top box are powered；
Transmission cable 6 can be between transmitting satellite TV signal, GNSS positioning signals, LNB and set top box interactive controlling
Signal, DC power signal；
GNSS radiofrequency signals and LNB intermediate-freuqncy signals are combined by radio frequency combiner 5；
GNSS includes single mode, bimodulus or multimode including but not limited to BDS, GPS, GLONASS, mode of operation；
The GNSS position receivers unit 1 of outdoor LNB parts completes the amplification of positioning signal, filtering；
The PMU PMUs 4 of outdoor LNB parts provide the power supply supply of LNB units；
The radio frequency branching unit 7 of set top box part completes GNSS radiofrequency signals, LNB intermediate-freuqncy signals, interactive controlling signal
Branch, and the direct current signal needed for LNB is fed into transmission cable；
Set top box direct broadcasting satellite signal processing unit 8 completes demodulation and the signal transacting of satellite TV signal；
Set top box positioning signal processing unit 9 completes the signal transacting of GNSS positioning signals, information processing, obtains positioning letter
Cease data；
The information that set top box interactive control unit 10 is completed between the interaction control unit 3 of outdoor LNB parts communicate and
Control；
Set top box PMU 11 provides the power supply supply of whole set top box unit, and provides outdoor LNB's
Power supply is supplied；
Set top box MCU main control circuit units 12 complete the control process of whole set top box, and pass through external interface and TV
The external equipments such as machine are connected；
Set-top box television interface exports audio signal and vision signal, do not limit signal form, it may be possible to the AV signals of simulation,
It is also likely to be high definition HDMI signals, YPbPr, VGA etc.；
Set top box external control interface and other circuit interfaces include serial ports, USB port, network interface, set-top box panel and control to connect
Mouth, intelligent card interface etc.；
Antenna 1 and antenna 2 are independently designed, wherein antenna is accomplished that the reception of direct broadcasting satellite signal all the way, it is another
Road is accomplished that the transmitting-receiving of GNSS signal.
Specifically, Fig. 9 is shown in the embodiment of the present invention based on the LNB under base band transmission pattern and set top box interactive control
Principle schematic, wherein：
Up-link is the link that set top box sends data to LNB, and downlink is the chain that LNB sends data to set top box
Road.Set top box sends ID (identity) querying command to LNB, and the order data uses pulse FM0 coded systems；Then, LNB is received
After querying command, by LNB ID data, (data are unique, and data are write when LNB dispatches from the factory by manufacturer, the production firm
By broadcasting and TV, authorities authorize) by downlink transmission to set top box, set top box recognises that whether the ID is to close
The ID of method, so as to complete checking.LNB ID data are also encoded using FM0.
In specific implementation process, when set top box is to user's transmission querying command, the ID data of set top box are sent to simultaneously
The ID checking set top box legitimacies of LNB, LNB based on set top box, when verifying legal, set top box is sent to LNB ID data.
Specifically, can also realize that LNB is controlled with set top box interactive by subcarrier band transmission mode, transmitted with frenulum
, it is necessary to increase a subcarrier modulator, the querying command that this set-top box is sent to LNB in set top box unlike pattern
It is frequency band data；LNB is received after querying command, the modulation of ID data is sent into set top box on a subcarrier, set top box is demodulated
ID data, whether be legal ID, so as to complete checking, the mode of whole data encoding can still be used if recognising that the ID
FM0 is encoded.
Specifically, Figure 10 shows the method flow that checking is interacted between the LNB in the embodiment of the present invention and set top box
Figure, comprises the following steps：
Start；
When LNB and set top box complete just to fill, either set top box is opened when receiving signal or TV enters reception state
When, when reentering validation-cross pattern by certain time threshold value, i.e. LNB interacts verification process with set top box.
S1001, set top box send ID querying commands to LNB；
The ID data of set top box itself are also sent to LNB by the ID querying commands.
S1002, LNB receive querying command；
Whether S1003, set top box checking set top box ID are legal, enter S1004 if checking is legal, otherwise enter
S1005；
S1004, LNB send ID data to set top box, and the ID data contain LNB ID；
S1005, LNB send inquiry error order to set top box, i.e., final set top box obtains the ID data less than LNB, most
Whole flow can terminate, and wideband direct broadcast satellite TV signalling channel will not be set up between LNB and set top box；
S1006, set top box to LNB initiate inquire about when, set top box timing wait；
S1007, when set top box does not receive LNB feedacks, set top box is judging whether time-out always, if not
Time-out, then enter S1008, and S1013 is entered if time-out；
It should be noted that the judgement of the time-out time can realize the time threshold pre-set, the time threshold
Can be the time for unit, i.e. millisecond, the second, point, hour etc., the time threshold is calculated with a certain concrete numerical value, such as 1 second,
0.5 second etc., according to any value of chronomere, meet condition setting.
S1008, set top box receive the data of LNB feedbacks, and the data can be the id information of LNB feedbacks, it is also possible to look into
Ask bad command；
S1009, set top box judge whether the data of the feedback are ID data, if ID data enter S1010, otherwise
Terminate；
S1010, set top box judge whether LNB ID is legal, and S1011 is entered if the ID of the LNB is legal, is otherwise entered
To 1012；
S1011, set top box are determined as legal LNB, then wideband direct broadcast satellite TV signal can be set up between set top box and LNB
Passage, wideband direct broadcast satellite TV signal can be received based on the wideband direct broadcast satellite TV signalling channel by LNB antenna；
S1012, set top box are determined as illegal LNB, then wideband direct broadcast satellite TV signal will not be set up between set top box and LNB
Passage, so that avoiding illegal reception system receives wideband direct broadcast satellite TV signal；
S1013, set-top box recording expired times；
Whether S1014, set top box judge expired times more than 3 times, if time-out terminates, if do not surpassed more than 3 times
When more than 3 times, reentering 1001；
In specific implementation process, the threshold number can be not restricted to 3 times, such as any of value more than 1 with any value
Individual numerical value can meet the purpose of the present embodiment setting, including：1 time, 2 times, 3 times etc..
Terminate.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
To instruct the hardware of correlation to complete by program, the program can be stored in a computer-readable recording medium, storage
Medium can include：Read-only storage (ROM, Read Only Memory), random access memory (RAM, Random
Access Memory), FLASH, disk or CD etc..
The method and LNB and system of the wideband direct broadcast satellite TV validation-cross provided above the embodiment of the present invention are carried out
It is discussed in detail, specific case used herein is set forth to the principle and embodiment of the present invention, above example
Illustrate the method and its core concept for being only intended to help to understand the present invention；Simultaneously for those of ordinary skill in the art, according to
According to the thought of the present invention, it will change in specific embodiments and applications, in summary, this specification content
It should not be construed as limiting the invention.
Claims (12)
1. a kind of method that wideband direct broadcast satellite TV validation-cross is realized based on LNB, it is characterised in that comprise the following steps：
After set top box is connected with direct broadcasting satellite tuner LNB formation signals, LNB obtains the ID data of set top box, and based on machine
The ID of top box carries out legitimate verification to set top box；
When LNB checking set top boxes are legal, direct broadcasting satellite signalling channel is set up between set top box and LNB.
2. the method as claimed in claim 1 that wideband direct broadcast satellite TV validation-cross is realized based on LNB, it is characterised in that described
The ID data that LNB obtains set top box include：
The LNB sends ID inquiry requests, and the set top box that receiving set up box is fed back based on ID inquiry requests to LNB to set top box
ID data；Or
The ID data for the set top box that receiving set up box is sent.
3. the method as claimed in claim 2 that wideband direct broadcast satellite TV validation-cross is realized based on LNB, it is characterised in that described
Modes of the LNB based on base band transmission obtains the ID data of set top box, or obtains machine top based on the mode that subcarrier band is transmitted
The ID data of box.
4. the method that wideband direct broadcast satellite TV validation-cross is realized based on LNB as described in any one of claims 1 to 3, its feature
Be, it is described direct broadcasting satellite signalling channel step is set up between set top box and LNB before also include：
The LNB sends LNB ID data to set top box, and the ID data of the LNB are tested LNB legitimacies for set top box
Card.
5. the method as claimed in claim 4 that wideband direct broadcast satellite TV validation-cross is realized based on LNB, it is characterised in that described
The ID data that LNB sends LNB to set top box include：
The ID querying commands that LNB receiving set up box is sent, LNB feeds back LNB ID data based on ID querying commands to set top box.
6. a kind of LNB, it is characterised in that including：
Acquisition module, for after set top box is connected with direct broadcasting satellite tuner LNB formation signals, obtaining the ID numbers of set top box
According to；
Authentication module, legitimate verification is carried out for the ID based on set top box to set top box；
Interactive controlling module, for when LNB checking set top boxes being legal, direct broadcasting satellite signal being set up between set top box and LNB and is led to
Road.
7. LNB as claimed in claim 6, it is characterised in that the acquisition module includes：
Receiving unit, the ID data of the set top box sent for receiving set up box；
Transmitting element, for sending ID inquiry requests to set top box.
8. LNB as claimed in claim 7, it is characterised in that modes of the LNB based on base band transmission obtains the ID of set top box
Data, or the mode based on subcarrier band transmission obtain the ID data of set top box.
9. the LNB as described in any one of claim 6 to 8, it is characterised in that the LNB modules also include：
Sending module, the ID data for sending LNB to set top box, the ID data of the LNB are used for set top box to LNB legitimacies
Verified.
10. LNB as claimed in claim 9, it is characterised in that the ID that the sending module is additionally operable to receiving set up box transmission is looked into
Ask order, and based on ID querying commands to set top box feed back LNB ID data.
11. a kind of system of wideband direct broadcast satellite TV validation-cross, it is characterised in that including：
Set top box, when verifying that set top box is legal for LNB, sets up direct broadcasting satellite signal interaction passage between set top box and LNB；
LNB, for after set top box is connected with direct broadcasting satellite tuner LNB formation signals, obtaining the ID data of set top box, and base
Legitimate verification is carried out to set top box in the ID of set top box；When verifying that set top box is legal, set up live between set top box and LNB
Satellite-signal passage.
12. the system of wideband direct broadcast satellite TV validation-cross as claimed in claim 11, it is characterised in that the set top box is also used
In the ID data for obtaining LNB, and the ID based on LNB carries out legitimate verification to LNB；Verify LNB it is legal when, set top box with
Direct broadcasting satellite signal interaction passage is set up between LNB.
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Denomination of invention: A Method and LNB System for Interactive Verification of Live Satellite TV Granted publication date: 20200424 Pledgee: China Co. truction Bank Corp Guangzhou Tianhe subbranch Pledgor: TECHTOTOP MICROELECTRONICS Co.,Ltd. Registration number: Y2024980005780 |