CN202435413U - Satellite data broadcast receiving device - Google Patents
Satellite data broadcast receiving device Download PDFInfo
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- CN202435413U CN202435413U CN2012200316937U CN201220031693U CN202435413U CN 202435413 U CN202435413 U CN 202435413U CN 2012200316937 U CN2012200316937 U CN 2012200316937U CN 201220031693 U CN201220031693 U CN 201220031693U CN 202435413 U CN202435413 U CN 202435413U
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Abstract
The utility model relates to a satellite data broadcast receiving device. The device comprises a DVB-S high frequency tuner module, a data processing module, a power supply module, an indicator light and remote control module, an external interface module and the like. The device receives a radio frequency signal from a satellite antenna; after modulation, decryption, format conversion and other processes, the radio frequency signal is converted into a digital signal capable of being processed by a computer or an intelligent terminal and transmitted to the computer or the intelligent terminal. Functions of decryption key and packet ID (PID) acquisition, data decryption and data format conversion are integrated to the data processing module via a single chip, so that the design is greatly simplified and the security grade is improved to a great extent.
Description
Technical field
The utility model relates to a kind of satellite data broadcasting receiving system, relates in particular to a kind of satellite data broadcasting (DVB-S) receiving system that is applicable to very small aperture terminal (VSAT) system.
Background technology
In the past, satellite is only as the means of communication of transporting speech and TV signal, so corresponding receiver devices is satellite antenna+receiver, transmission be analog signal.But now along with arriving, the especially broad application of Internet of informationized society, digital signal is little with its occupied bandwidth, good confidentiality, and images, speech are clear, receive everybody favor.In this case, satellite data video broadcasting (DVB-S) is arisen at the historic moment, and its front end main website through ovennodulation, is transmitted into the very small aperture terminal (VSAT) of far-end to digital signals such as IP packets via satellite.Because traditional DVB can only receive analog signal,, therefore need a kind of receiving terminal that can adapt to this new business so it oneself no longer be suitable as the receiving terminal of this new business.
The PC of popularizing rapidly is a PC, because of its superpower data-handling capacity becomes the professional receiving terminal of desirable high-speed datacasting.But PC can not directly receive and handle qpsk modulation signal, the signal that therefore needs a kind of new computer installation to become the conversion of signals that receives from satellite PC to receive and to handle.
It is 03243287.9 the disclosed a kind of satellite data broadcasting receiving system of Chinese utility model patent that Fig. 1 shows the patent No.; The signal that this device can become the data transaction of DVB standard computer can receive and handle, wherein: DVB-S tuner module 10 will convert the data of DVB standard from the radiofrequency signal of satellite antenna to; Signal processing module 20 receives the data by the DVB standard of DVB-S tuner module 10 outputs; Entitlement Control Message (ECMS) and Entitlement Management Message (EMMS) that key and bag identification code (PID) acquisition module 60 receive from signal processing module 20; And according to the authentication number of being preserved and with encrypting relevant program ECMS and EMMS information are handled, obtain soon the bag identification code of filtering data and the decruption key of deciphering these data uses; Signal processing module 20 according to this bag identification code and decruption key with the data flow of the DVB standard of DVB-S tuner module 10 outputs filter, deciphering and MII format conversion to be to obtain the data of MII form; Pci interface module 50 sends to computer with the data of the MII form of signal processing module 20 outputs.
But in this utility model patent, because key and bag identification code (PID) acquisition module 60 are discrete components that are separated with signal processing module 20, so there is the risk that is cracked in key, thereby this device can only be accomplished general deciphering broadcast.Therefore, need a kind ofly not only can to become the conversion of signals that receives from satellite the signal that computer can receive and handle and can improve safe class, thereby the encryption authorization that can bear broadcast level broadcasts the satellite data broadcasting receiving system of using.
In addition, along with development of science and technology, increasing people brings into use the intelligent terminal of aspect functions such as supporting video, audio frequency, data, for example STB, television set, panel computer, smart mobile phone etc.People hope to use its intelligent terminal to play the broadcast data from satellite whenever and wherever possible.And in above-mentioned utility model patent,, can only the data of output be sent to computer equipment owing to only have the pci interface module.Therefore, need a kind of satellite data broadcasting receiving system that the conversion of signals that receives from satellite can be become the signal that intelligent terminal can receive and handle.
The utility model content
A purpose of the utility model provides a kind of satellite data broadcasting receiving system; This device is integrated on the single chip key and bag identification code (PID) acquisition module and signal processing module as data processing module, thereby with higher safe class the radiofrequency signal that receives from the satellite antenna is carried out processing such as demodulation is close to obtain the manageable digital signal of computer or intelligent terminal and to send into computer or intelligent terminal to this signal.
Another purpose of the utility model provides a kind of satellite data broadcasting receiving system, and pci interface, USB interface and the PCIE interface of this device through computer or intelligent terminal carries out exchanges data with the form of plug-in card and computer or intelligent terminal.
Another purpose of the utility model provides a kind of satellite data broadcasting receiving system, and this device can be controlled the operation of computer or intelligent terminal through the remote signal of external remote.
For realizing the above-mentioned purpose of the utility model, the utility model provides a kind of satellite data broadcasting receiving system, comprising:
DVB-S tuner module is used to receive the radiofrequency signal from satellite antenna, after this radiofrequency signal is carried out quadrature demodulation and digital demodulation, generates and export the data of DVB standard;
Data processing module; Link to each other with said DVB-S tuner module; Be used to obtain required decruption key and the bag identification code (PID) of data of handling said DVB standard, and the data that PCI, USB or PCIE form were deciphered and converted into to the data of the said DVB standard of said DVB-S tuner module being exported according to said decruption key and bag identification code (PID) are exported also;
The Peripheral Interface module links to each other with said data processing module, is used for the data of PCI, USB or the PCIE form of the output of said data processing module are sent to computer or intelligent terminal.
The satellite data broadcasting receiving system of the utility model is integrated into the function of the obtaining of decruption key and bag identification code (PID), data decryption and Data Format Transform in the one chip, has not only simplified design, and has improved safe class greatly.
In addition; The satellite data broadcasting receiving system of the utility model provides the data of PCI, USB and many kinds of forms of PCIE; So not only can the data that deciphering obtains be sent to computer equipment, can also send to various intelligent terminals such as STB, television set, panel computer.
Description of drawings
Fig. 1 is the construction module sketch map according to the satellite data broadcasting receiving system of prior art;
Fig. 2 is the construction module sketch map according to the satellite data broadcasting receiving system of the utility model;
Fig. 3 A and Fig. 3 B are the detailed circuit diagram according to the preferred embodiment of the satellite data broadcasting receiving system of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the satellite data broadcasting receiving system of the utility model is elaborated.
Fig. 2 is the construction module sketch map according to the satellite data broadcasting receiving system of the utility model.As shown in Figure 2, this device comprises: DVB-S tuner module 10, data processing module 20, smart card read module 30, intelligent card socket 40, Peripheral Interface module 50, indicator light and remote control module 60 and power module 70.
DVB-S tuner module 10 comprises:
DVB-S demodulating unit 12 is used to receive the analog baseband signal of quadrature demodulation unit 11 outputs and this signal is carried out digital demodulation, recovers output DVB standard data delivery stream.
Bag identification code (PID) filter element 21; Be used to receive the DVB standard data delivery stream of DVB-S demodulating unit 12 outputs; And the bag identification code (PID) that provides according to Self Control unit 24 filters the data of output specified packet identification code (PID), and it can filter output 32 road bag identification code (PID) data at most simultaneously;
DVB descrambling unit 22; Be used for receiving the data that bag identification code (PID) filter element 21 filters output; According to Self Control unit 24 decruption key that provides and the common descrambler algorithm that is built in the DVB standard in the unit, the data that receive are deciphered output then;
PCI/USB/PCIE interface unit 26 is used to receive the decrypted signal that DVB descrambling unit 22 is exported, and becomes this conversion of signals the signal and the output of accord with PCI, USB or PCIE data format then;
Intelligent card interface unit 23; Be used for when receiving from the reading instruction of control unit 24; Through the data in the smart card that is inserted on the smart card read module 30 reception intelligent card socket 40; These data comprise and relevant information such as service project, and give control unit 24 this data forwarding.This interface unit meets the IS07816 standard, can support the smart card of T=0 mode;
Key and bag identification code (PID) acquiring unit 25; Be used to receive Entitlement Control Message (ECMs) and Entitlement Management Message (EMMs) from control unit 24; According to the authentication number of unit self preservation and with encrypting relevant program described information is handled the decruption key to obtain the bag identification code (PID) that is about to filtering data and to decipher this data use, and send to control unit 24 to the bag identification code (PID) and the decruption key that obtain.
Smart card read module 30; Link to each other with intelligent card interface unit 23; Receive reading instruction through intelligent card interface unit 23 from control unit 24; Thereby send intelligent card interface unit 23 to from the smart card reading of data and with the data that read, wherein, said data comprise and relevant information such as service project.
Indicator light and remote control module 60, residing state and the computer that is connected with satellite broadcast receiving device or the operation of intelligent terminal carried out remote control when being used to use indicator light video data processing module 20 deal with data.This indicator light and remote control module 60 have one green one yellow two lamps, and the normal bright expression data processing module 20 of green light has locked the pid data of given filter; Green light flicker expression data processing module 20 is receiving data; Oneself correctly inserts intelligent card socket 40 the normal bright expression smart card of amber light, can receive data from satellite antenna.Distant control function cooperates the remotely monitored sensor in indicator light and the remote control module 60 to realize by data processing module 20; Wherein the remotely monitored sensor in indicator light and the remote control module 60 receives the data-signal that external remote is sent, and sends computer to or intelligent terminal carries out remote control with the operation to computer or intelligent terminal through data processing module 20.
Fig. 3 A and Fig. 3 B are the detailed circuit diagram of preferred embodiment of the satellite data broadcasting receiving system of the utility model.
Shown in Fig. 3 A and 3B; 9597 chips are DVB-S-body tuner; The function of quadrature demodulation unit 1 and DVB-S demodulating unit 2 in the DVB-S tuner module 10 among realization Fig. 1; Therefore 9597 chips can receive from the radiofrequency signal of satellite antenna and to this signal and carry out quadrature demodulation and DVB-S demodulation process, and DVB standard data delivery stream is exported to the STV-RT10U safety chip.
Single S TV-RT10U safety chip is realized the function of data processing module 20; The function that is about to PID filter element 21, DVB descrambling unit 22, PCI/USB/PCIE interface unit 26, control unit 24, intelligent card interface unit 23 and key and bag identification code (PID) acquiring unit 25 is integrated in the single S TV-RT10UP safety chip; This STV-RT10U safety chip is used to receive the Entitlement Control Message (ECMs) and the Entitlement Management Message (EMMs) of outer computer or intelligent terminal transmission; According to authentication number of self preserving and the program relevant described information is handled to obtain the decruption key that STV-RT10U is about to the bag identification code (PID) of filtering data and deciphers these data uses then with encryption; And receive the DVB standard data delivery stream of 9597 chips output and from the data that comprise the service project information of smart card, this data transmission stream is wrapped processing such as identification code (PID) filtration, deciphering and format conversion according to the key of these data uses of bag identification code (PID) that is about to filtering data and deciphering.The STV-RT10U safety chip is one of core component of the utility model.Certainly; Adopt the STV-RT10U safety chip to realize that the function of data processing module 20 only is a specific embodiment; According to concrete needs, those skilled in the art obviously can easily expect selecting the one chip of other model to realize the function of data processing module 20.
PRTR5V0U2X (USB socket) realizes the function that peripheral hardware interface module among Fig. 1 50 is required; Be used to receive the signal of STV-RT10U safety chip output and send to computer or intelligent terminal to this signal via PCI, USB or the PCIE interface of computer or intelligent terminal, perhaps the Entitlement Control Message (ECMs) and the Entitlement Management Message (EMMs) that send of receiving computer or intelligent terminal and be transmitted to the STV-RT10U safety chip.
TDA8024AT realizes the function that smart card read module among Fig. 1 30 is required; Link to each other with the STV-RT10U safety chip; Reception reads instruction from the STV-RT10U safety chip; Thereby send the STV-RT10U safety chip to from the smart card reading of data and with the data that read, wherein, said data comprise the information relevant with the service project etc.
SIM-CONN realizes the function that intelligent card socket among Fig. 1 40 is required, is used to insert smart card, makes the smart card that inserts to give the STV-RT10U safety chip with the data forwarding that comprises the information relevant with the service project of storage via TDA8024AT.
Light-emitting diode D4, D5 and infrared sensor CON3 realize the function of Fig. 1 indicator light and remote control module 60, residing state and the computer that is connected with satellite broadcast receiving device or the operation of intelligent terminal carried out remote control when being used to use light-emitting diode D4, D5 to show STV-RT10U safety chip processing signals.D4 and D5 are one green one yellow two lamps, and the normal bright expression STV-RT10U safety chip of green light has locked the data of given filter bag identification code (PID); Green light flicker expression STV-RT10U safety chip is receiving data; The normal bright expression smart card of amber light correctly inserts SIM-CONN, and the STV-RT10U safety chip can receive data from satellite antenna.Distant control function is that the STV-RT10U safety chip cooperates infrared sensor CON3 to realize; Infrared sensor CON3 receives the data-signal from external remote, and sends this data-signal to computer or intelligent terminal carries out remote control with the operation to computer or intelligent terminal through the STV-RT10U safety chip.
APW7101 and LM1117_1.8 realize the function that the power module 70 of Fig. 1 is required together; The voltage that is used to produce 1.8v and 3.3v supplies 9597 chips, STV-RT10U safety chip, infrared sensor CON3, light-emitting diode D4, D5 to use; Particularly; According to the 5v voltage that computer bus provides, use LM1117_1.8 to carry out voltage stabilizing and obtain 1.8v voltage, supply 9597 chips, STV-RT10U safety chip to use; According to the 5v voltage that computer bus provides, use APW7101 to carry out voltage stabilizing and obtain 3.3v voltage, supply 9597 chips, STV-RT10U safety chip, infrared sensor CON3, light-emitting diode D4, D5 to use.
Beneficial effect
In sum; The satellite data broadcasting receiving system of the utility model will wrap identification code (PID) filter element, DVB descrambling unit, intelligent card interface unit, control unit, key and bag identification code (PID) acquiring unit and the PCI/USB/PCIE interface unit is integrated in the single safety chip as data processing module; Accomplish the reception of key and the deciphering of comparison and data by single safety chip; Can be compared to a flight data recorder for the user; Encryption stream is imported from an end, and the deciphering clear stream is exported from the other end.Therefore, the satellite data broadcasting receiving system of the utility model can improve safe class greatly, and the encryption authorization that can be used for broadcast level broadcasts.
In addition, the satellite data broadcasting receiving system of the utility model can provide the data of PCI, USB and many kinds of forms of PCIE, so not only can be applied to computer equipment, can also be applied to various intelligent terminals such as STB, television set, panel computer.
Claims (9)
1. a satellite data broadcasting receiving system is characterized in that, comprising:
DVB-S tuner module is used for the radiofrequency signal from the satellite antenna is converted to the data and the output of DVB standard;
Data processing module; Link to each other with said DVB-S tuner module; Be used to obtain required decruption key and the bag identification code (PID) of data of handling said DVB standard, and the data that PCI, USB or PCIE form were deciphered and converted into to the data of the said DVB standard of said DVB-S tuner module being exported according to said decruption key and bag identification code (PID) are exported also;
The Peripheral Interface module links to each other with said data processing module, is used for the data of PCI, USB or the PCIE form of the output of said data processing module are sent to computer or intelligent terminal.
2. satellite data broadcasting receiving system as claimed in claim 1 is characterized in that said data processing module is realized by single chip.
3. satellite data broadcasting receiving system as claimed in claim 2 is characterized in that, said data processing module is realized by single STV-RT10U safety chip.
4. like the described satellite data broadcasting receiving system of any claim in the claim 1 to 3, it is characterized in that described data processing module further comprises:
Bag identification code (PID) filter element is used to receive the DVB standard data delivery stream that said DVB-S tuner module is exported, and filters the data of exporting specified packet identification code (PID) according to the bag identification code (PID) that the Self Control unit provides;
DVB descrambling unit; Be used to receive the data that said bag identification code (PID) filter element filters output; According to the common descrambler algorithm of the decruption key that provides from said control unit, the data that receive are deciphered output then with the DVB standard of self preserving;
The PCI/USB/PCIE interface unit is used to receive the decrypted signal that said DVB descrambling unit is exported, and becomes this conversion of signals the signal and the output of accord with PCI, USB or PCIE data format then;
Said control unit; Be used to receive Entitlement Control Message (ECMs) and Entitlement Management Message (EMMs) from outer computer or intelligent terminal; And be transmitted to key and bag identification code (PID) acquiring unit to these information; And receive the bag identification code (PID) that is about to filtering data and decipher the decruption key that these data are used from key and bag identification code (PID) acquiring unit; And send to said bag identification code (PID) filter element to the bag identification code (PID) that receives, send to said DVB descrambling unit to the decruption key that receives;
Said key and bag identification code (PID) acquiring unit; Be used to receive Entitlement Control Message (ECMs) and Entitlement Management Message (EMMs) from said control unit; According to the authentication number of self preserving and with encrypting relevant program described information is handled the decruption key to obtain the bag identification code (PID) that is about to filtering data and to decipher this data use, and send to said control unit to the bag identification code (PID) and the decruption key that obtain.
5. satellite data broadcasting receiving system as claimed in claim 4 is characterized in that,
Described data processing module also comprises:
The intelligent card interface unit is used for receiving the data from smart card, and giving said control unit with said data forwarding receiving from after the reading instruction of control unit, and said data comprise the information relevant with the service project.
6. like the described satellite data broadcasting receiving system of any claim in the claim 1 to 3, it is characterized in that said DVB-S tuner module further comprises:
The quadrature demodulation unit is used for the radiofrequency signal from the satellite antenna is demodulated into base-band analog signal and output;
The DVB-S demodulating unit links to each other with said data processing module with said quadrature demodulation unit, is used for the base-band analog signal of said quadrature demodulation unit output is demodulated into the data of DVB standard, and exports to said data processing module to these data.
7. satellite data broadcasting receiving system as claimed in claim 1 is characterized in that, also comprises:
Indicator light and remote control module; Link to each other with said data processing module; Be used to show the treatment state of said data processing module, and will be transmitted to said computer via said data processing module from the data-signal of external remote or intelligent terminal carries out remote control with the operation to said computer or intelligent terminal.
8. like the described satellite data broadcasting receiving system of any claim in the claim 1,2,3 or 7, it is characterized in that, also comprise:
Power module; Link to each other with said indicator light and remote control module with said DVB-S tuner module, said data processing module, be used to generate the power supply of multiple different voltages and export to said DVB-S tuner module, said data processing module and said indicator light and remote control module.
9. satellite data broadcasting receiving system as claimed in claim 5 is characterized in that, also comprises:
The smart card read module links to each other with said intelligent card interface unit, is used for receiving from the reading instruction of said control unit through said intelligent card interface unit, thereby sends said intelligent card interface unit to from the smart card reading of data and with the data that read;
Intelligent card socket; Link to each other with said smart card read module, be used to insert smart card, the data of storing in the smart card are sent to said intelligent card interface unit via said smart card read module; Wherein, said data comprise and the relevant information of said service project.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200316937U CN202435413U (en) | 2012-01-19 | 2012-01-19 | Satellite data broadcast receiving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200316937U CN202435413U (en) | 2012-01-19 | 2012-01-19 | Satellite data broadcast receiving device |
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| Publication Number | Publication Date |
|---|---|
| CN202435413U true CN202435413U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200316937U Expired - Lifetime CN202435413U (en) | 2012-01-19 | 2012-01-19 | Satellite data broadcast receiving device |
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| CN (1) | CN202435413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919903A (en) * | 2017-11-21 | 2018-04-17 | 中国电子科技集团公司第五十四研究所 | A kind of multi-mode satellite communication apparatus based on VPX frameworks |
| CN110096850A (en) * | 2019-04-09 | 2019-08-06 | 北京空间飞行器总体设计部 | A kind of vehicle-mounted reinforcement type observing and controlling encryption and decryption machine |
-
2012
- 2012-01-19 CN CN2012200316937U patent/CN202435413U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107919903A (en) * | 2017-11-21 | 2018-04-17 | 中国电子科技集团公司第五十四研究所 | A kind of multi-mode satellite communication apparatus based on VPX frameworks |
| CN110096850A (en) * | 2019-04-09 | 2019-08-06 | 北京空间飞行器总体设计部 | A kind of vehicle-mounted reinforcement type observing and controlling encryption and decryption machine |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |
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| CX01 | Expiry of patent term |