CN202841403U - Modulator device with empty packet replacing function - Google Patents
Modulator device with empty packet replacing function Download PDFInfo
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- CN202841403U CN202841403U CN 201220557649 CN201220557649U CN202841403U CN 202841403 U CN202841403 U CN 202841403U CN 201220557649 CN201220557649 CN 201220557649 CN 201220557649 U CN201220557649 U CN 201220557649U CN 202841403 U CN202841403 U CN 202841403U
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Abstract
The utility model relates to a modulator device with an empty packet replacing function. The device comprises at least one modulator unit. Based on five structures of the prior art, each of modulator units comprises one, two or three of an empty packet replacing module, a sub-module of a Transport Stream (TS) multiplexing module or a sub-module of a TS code rate adaptation module, wherein the empty packet replacing module is connected between a modulation module and a prior module of the modulation module and is used for downloading information and replacing a TS empty packet to a TS packet loading the information, and the sub-module of the TS multiplexing module and the sub-module of the TS code rate adaptation module are used for downloading information, filling the TS packet loading the information and replacing the TS empty packet to the TS packet loading the information. By the aid of the device, the information service can be conducted well through the empty packet and the information dissemination and the service intensification can be achieved.
Description
Technical field
The utility model relates to the modulator techniques field, particularly relates to a kind of modulator device with empty bag replacement function.
Background technology
Below be some explanations of nouns in this area, its scope of application only limits to the present invention:
TS: full name is Transport Stream, i.e. transmission code stream.
PID: full name is Packet Ident ification, i.e. " Packet Identifier ".
Modulator: modulator is the abbreviation of adjacent channel modulator, also often is known as radio-frequency modulator or television modulator, is one of capital equipment of front end TV machine room.
Input interface module is used for receiving and processing the signal that is loaded with digital TV transmission stream, obtains the digital TV transmission stream that signal carries, and is transferred to follow-up module.Input interface module commonly used comprises ASI interface module, ethernet interface module, PDH interface module, SDH interface module and PON interface module etc., and above-mentioned input interface all can be electrical interface or optical interface.
TS flows Multiplexing module: with a plurality of SPTS stream of same output channel or MPTS Polymera code streams that MPTS stream is multiplexed into requirement of being mapped in.
Scrambling module: program or basic transport stream to appointment are carried out the DVB scrambling.
TS stream bit rate adaptation module: be responsible for according to modulation module the demand of code check being mated the code check that will enter the modulation module code stream, TS stream bit rate adaptation module is by empty packet filtering, and FIFO cushions, and the modes such as empty bag filling/insertion realize the code check coupling.
Modulation module: be responsible for chnnel coding and modulation, comprise frequency translation.
Existing modulator device fails to utilize well the empty bag of TS to carry out information service, waste bandwidth resource, waste electric power energy.The purpose of this utility model is to realize the information service of low-carbon (LC), green, environmental protection, and the utility model had both been paid attention to the novelty of technology, more pursue the actual effect of technology in energy conservation, environmental protection, be beneficial to promote economic sustainable development.
The utility model content
Technical problem to be solved in the utility model provides a kind of modulator device with empty bag replacement function, is used for solving existing modulator device and fails the fine problem of utilizing empty bag to carry out information service.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of modulator device with empty bag replacement function, comprise at least one modulator unit, and described each modulator unit comprises input interface module, TS stream Multiplexing module, scrambling module, TS stream bit rate adaptation module and the modulation module that connects successively, and described each modulator unit also comprises following any one module or any two modules or three modules:
An empty bag replacement module, it is connected between described TS stream bit rate adaptation module and the described modulation module, for Download Info with the empty TS bag that replaces with carrying information that wraps of TS;
The submodule of TS stream Multiplexing module, it adds and is located in the described TS stream Multiplexing module, is used for the TS bag of Download Info, filling/insertions carrying information and the TS that the empty bag of TS replaces with carrying information is wrapped;
The submodule of a TS stream bit rate adaptation module, it adds and is located in the described TS stream bit rate adaptation module, is used for the TS bag of Download Info, filling/insertions carrying information and the TS that the empty bag of TS replaces with carrying information is wrapped.
For above-mentioned sky bag replacement module, it specifically refers to for the TS bag that the empty bag of TS is replaced with carrying information: the described empty replacement module that wraps uses the empty bag of TS bag replacement TS of carrying information or does not replace the empty bag of TS when transport stream detects the empty bag of TS.
For the submodule of above-mentioned TS stream Multiplexing module or the submodule of TS stream bit rate adaptation module, it be used for to be filled/inserts TS bag of carrying information and the TS bag that the empty bag of TS replaces with carrying information is specifically referred to: it needs to fill in transport stream/when inserting the empty bag of TS, the TS bag of use carrying information is filled/is inserted or fill/the empty bag of insertion TS, perhaps it uses the TS bag of carrying information to replace the empty bag of TS or do not replace the empty bag of TS when transport stream output place detects the empty bag of TS.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, described TS stream bit rate adaptation module is not set in described each modulator unit, and described input interface module, described TS stream Multiplexing module, described scrambling module and the modulation module of being connected connect successively, and described empty bag replacement module is arranged between described scrambling module and the described modulation module.
Further, in described each modulator unit scrambling module is not set, and described input interface module, described TS stream Multiplexing module, described TS stream bit rate adaptation module and the modulation module of being connected connect successively.
Further, described each modulator unit does not arrange described scrambling module and described TS stream bit rate adaptation module, and described input interface module, described TS stream Multiplexing module and the modulation module of being connected connect successively, and described empty bag replacement module is arranged between described TS stream Multiplexing module and the described modulation module.
Further, described each modulator unit does not arrange described TS stream Multiplexing module and described scrambling module, and described input interface module, described TS stream bit rate adaptation module link to each other successively with described modulation module.
Further, described empty bag replacement module also is used for realizing not replacing the empty bag of TS, and directly with the empty bag output of TS.
Further, the submodule of described TS stream Multiplexing module also is used for realizing not filling the TS bag of carrying information, and fills the empty bag of TS, perhaps is used for realizing not replacing the empty bag of TS, and directly with the empty bag output of TS.
Further, the submodule of described TS stream bit rate adaptation module also is used for realizing not filling the TS bag of carrying information, and fills the empty bag of TS, perhaps is used for realizing not replacing the empty bag of TS, and directly with the empty bag output of TS.
Further, described empty bag replacement module, the submodule of described TS stream Multiplexing module and the submodule of described TS stream bit rate adaptation module all can directly pass through network interface, communication interface, USB interface, disk interface or data storage card interface Download Info, and network interface and communication interface are electrical interface or optical interface.
Further, the TS of described carrying information bag identifies for PID number with the empty bag of TS PID number or the empty bag of non-TS.
Further, the submodule of the submodule of described empty bag replacement module, described TS stream Multiplexing module and described TS stream bit rate adaptation module all can be reset PID number of the TS of described carrying information bag by the predefined PID of described modulator device number.
Further, when the TS of described carrying information bag uses PID number sign of the empty bag of TS, empty bag packet header form optional form A, perhaps form B, perhaps form A:
Form A: be set to " 0x47 " by the standard sync byte; Be set to " 0B " by standard transmission error code designator; Be set to " 0B " by standard PU Payload Unit start indicator; Transmission preferences is not defined by standard; Be set to " 0x1FFF " by the standard Packet Identifier; Transmit scrambling control by standard and be set to " 00B "; Be set to " 01B " by the control of standard self adaptation district; Continuous counter is not defined by standard;
Form B: be set to " 0x47 " by the standard sync byte; Be set to " 0B " by standard transmission error code designator; Be set to " 0B " by standard PU Payload Unit start indicator; Change the effect of transmission preferences, transmission preferences is set to " 1B ", carries the sign of information on services as empty package; Be set to " 0x1FFF " by the standard Packet Identifier; Transmit scrambling control by standard and be set to " 00B "; Be set to " 01B " by the control of standard self adaptation district; Continuous counter is not defined by standard;
Form A: be set to " 0x47 " by the standard sync byte; Be set to " 0B " by standard transmission error code designator; Be set to " 0B " by standard PU Payload Unit start indicator, perhaps adopt the usage of PU Payload Unit start indicator under the non-NULL bag PID; Change the effect of transmission preferences, transmission preferences is set to " 1B ", carries the sign of information on services as empty package; Be set to " 0x1FFF " by the standard Packet Identifier; Transmit scrambling control by standard and be set to " 00B ", perhaps adopt the usage of transmission scrambling control under the non-NULL bag PID; Be set to " 01B " by the control of standard self adaptation district, perhaps adopt the usage of self adaptation district control under the non-NULL bag PID; Continuous counter is not defined by standard, perhaps adopt the usage of continuous counter under the non-NULL bag PID.
Further, the TS of described carrying information bag adopts the data broadcast standard of self-defined mode or national digital television system to encapsulate.
Further, described modulation module adopts digital catv signal modulation standard, ground digital television signal modulation standard or satellite digital television signal modulation standard.
Further, according to arbitrary described modulator device in the such scheme, described modulator device also comprises a Download Info module that is independent of all modulator units, and the submodule of described empty bag replacement module, described TS stream Multiplexing module and the submodule of described TS stream bit rate adaptation module all can be by calling described Download Info intermodule ground connection by network interface, communication interface, USB interface, disk interface or data storage card interface Download Info.And network interface and communication interface are electrical interface or optical interface.
In addition, the bag of TS described in the utility model adopts the data broadcast standard of self-defined mode or national digital television system to encapsulate, the encapsulation the information equipment of process outside modulator device in carry out or the module in modulator device in carry out, the data broadcast standard of national digital television system comprises data pipe standard, data flow standard, multi-protocol encapsulation standard and data carousel standard.
The beneficial effects of the utility model are: modulator device of the present utility model can utilize the empty bag of TS to carry out information service well, energy savings, economize on resources, cost is lower, is conducive to realize the information service of low-carbon (LC), green, environmental protection.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2;
Fig. 3 is the structural representation of the utility model embodiment 3;
Fig. 4 is the structural representation of the utility model embodiment 4;
Fig. 5 is the structural representation of the utility model embodiment 5;
Fig. 6 is that the utility model embodiment 6 is based on the improvement structural representation of implementing 1;
Fig. 7 is the structural representation of the utility model embodiment 8;
In the accompanying drawing, the list of parts of each label representative is as follows:
1, input interface module, 2, TS flows Multiplexing module, 3, scrambling module, 4, TS stream bit rate adaptation module, 5, modulation module, 6, empty bag replacement module, 7, the submodule of TS stream Multiplexing module, 8, the submodule of TS stream bit rate adaptation module, 9, the Download Info module.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
Comprise at least one modulator unit in the modulator device of the prior art, and the structure of described each modulator unit, corresponding diagram 1 mainly contains five kinds of forms to Fig. 5:
The first modulator unit structure: described each modulator unit comprises input interface module 1, TS stream Multiplexing module 2, scrambling module 3, TS stream bit rate adaptation module 4 and the modulation module 5 that connects successively;
The second modulator unit structure: described each modulator unit comprises that the input interface module 1, the TS that connect successively flow Multiplexing module 2, scrambling module 3 and modulation module 5;
The third modulator unit structure: described each modulator unit comprises that the input interface module 1, the TS that connect successively flow Multiplexing module 2, TS stream bit rate adaptation module 4 and modulation module 5;
The 4th kind of modulator unit structure: described each modulator unit comprises input interface module 1, TS stream Multiplexing module 2 and the modulation module 5 that connects successively;
The 5th kind of modulator unit structure: described each modulator unit comprises input interface module 1, TS stream bit rate adaptation module 4 and the modulation module 5 that connects successively.
Embodiment of the present utility model all is based on the modulator device of the modulator unit of these five kinds of structures, and the modulator device among all embodiment includes at least one modulator unit.
As shown in Figure 1, embodiment 1 is based on the first modulator unit structure and has the modulator device of empty bag replacement function, is connected one and is used for Download Info and wraps the sky bag replacement module 6 that the TS that replaces with carrying information wraps with TS is empty between described TS stream bit rate adaptation module 4 and described modulation module 5.
As shown in Figure 2, embodiment 2 is based on the second modulator unit structure and has the modulator device of empty bag replacement function, is connected one and is used for Download Info and wraps the sky bag replacement module 6 that the TS that replaces with carrying information wraps with TS is empty between described scrambling module 3 and described modulation module 5.
As shown in Figure 3, embodiment 3 is based on the third modulator unit structure and has the modulator device of empty bag replacement function, is connected one and is used for Download Info and wraps the sky bag replacement module 6 that the TS that replaces with carrying information wraps with TS is empty between described TS stream bit rate adaptation module 4 and described modulation module 5.
As shown in Figure 4, embodiment 4 is based on the 4th kind of modulator unit structure and has the modulator device of empty bag replacement function, is connected one and is used for Download Info and wraps the sky bag replacement module 5 that the TS that replaces with carrying information wraps with TS is empty between described TS stream Multiplexing module 2 and described modulation module 5.
As shown in Figure 5, embodiment 5 is based on the 5th kind of modulator unit structure and has the modulator device of empty bag replacement function, is connected one and is used for Download Info and wraps the sky bag replacement module 6 that the TS that replaces with carrying information wraps with TS is empty between described TS stream bit rate adaptation module 4 and described modulation module 5.
Embodiment 7 does not adopt the sky bag replacement module 6 among the embodiment 1 to embodiment 6, it is based on above-mentioned five kinds of modulator unit structures: for the modulator unit structure that TS stream Multiplexing module 2 is arranged, can add the submodule 7 of a TS stream Multiplexing module, and this submodule is for the TS bag of Download Info, filling/insertion carrying information with the empty TS bag that replaces with carrying information that wraps of TS; For the modulator unit structure that TS stream bit rate adaptation module 4 is arranged, can add the submodule 8 of a TS stream bit rate adaptation module, and this submodule is used for the TS bag of Download Info, filling/insertion carrying information and the TS sky is wrapped the TS that replaces with carrying information; For the embodiment that TS stream Multiplexing module 2 and TS stream bit rate adaptation module 4 are arranged simultaneously, can only add the submodule 7 of a TS stream Multiplexing module, perhaps only add the submodule 8 of a TS stream bit rate adaptation module, and the equal TS bag that can be used for the TS bag of Download Info, filling/insertion carrying information and the empty bag of TS be replaced with carrying information of these two corresponding submodules.
For above-mentioned seven embodiment, the scheme below can be further on its implementation detail preferred:
Described empty bag replacement module 6, the submodule 7 of described TS stream Multiplexing module and the submodule 8 of described TS stream bit rate adaptation module all can directly pass through network interface, communication interface, USB interface, disk interface or data storage card interface Download Info.The information downloading mode can adopt to be needed to download at any time at any time, perhaps downloads buffering method, perhaps downloads the information that next time period will play in a upper time period.
In addition, described empty bag replacement module 6 also is used for realizing not replacing the empty bag of TS, and directly with the empty bag output of TS.The submodule 7 of described TS stream Multiplexing module and the submodule 8 of described TS stream bit rate adaptation module also are used for realizing not filling the TS bag of carrying information, and fill the empty bag of TS, perhaps are used for realizing not replacing the empty bag of TS, and directly with the empty bag output of TS.
As shown in Figure 7, embodiment 8 is based on the modulator device of arbitrary embodiment among the embodiment 1 to embodiment 7, and comprise at least one modulator unit (modulator unit 1 is to modulator unit n among Fig. 7), and also comprise a Download Info module 9 that is independent of all modulator units, described empty bag replacement module 6, the submodule 7 of described TS stream Multiplexing module and the submodule 8 of described TS stream bit rate adaptation module all can pass through network interface indirectly by calling described Download Info module 9, communication interface, USB interface, disk interface or data storage card interface Download Info.The information downloading mode can adopt to be needed to download at any time at any time, perhaps downloads buffering method, perhaps downloads the information that next time period will play in a upper time period.
For above-mentioned eight embodiment, the scheme below can be further on its implementation detail preferred:
The TS bag of described carrying information identifies for PID number with the empty bag of TS PID number or the empty bag of non-TS.
The submodule of described empty bag replacement module, described TS stream Multiplexing module or the submodule of described TS stream bit rate adaptation module all can be reset PID number of the TS of described carrying information bag by the predefined PID of described modulator device number.Can by the man-machine interface input of described modulator device, perhaps by network interface or the communication interface of described modulator device, be arranged by long-range for the predefined PID of described modulator device number.
When the TS bag of described carrying information uses PID number sign of the empty bag of TS, empty bag packet header form optional form A, perhaps form B, perhaps form A:
Form A: be set to " 0x47 " by the standard sync byte; Be set to " 0B " by standard transmission error code designator; Be set to " 0B " by standard PU Payload Unit start indicator; Transmission preferences is not defined by standard; Be set to " 0x1FFF " by the standard Packet Identifier; Transmit scrambling control by standard and be set to " 00B "; Be set to " 01B " by the control of standard self adaptation district; Continuous counter is not defined by standard;
Form B: be set to " 0x47 " by the standard sync byte; Be set to " 0B " by standard transmission error code designator; Be set to " 0B " by standard PU Payload Unit start indicator; Change the effect of transmission preferences, transmission preferences is set to " 1B ", carries the sign of information on services as empty package; Be set to " 0x1FFF " by the standard Packet Identifier; Transmit scrambling control by standard and be set to " 00B "; Be set to " 01B " by the control of standard self adaptation district; Continuous counter is not defined by standard;
Form A: be set to " 0x47 " by the standard sync byte; Be set to " 0B " by standard transmission error code designator; Be set to " 0B " by standard PU Payload Unit start indicator, perhaps adopt the usage of PU Payload Unit start indicator under the non-NULL bag PID; Change the effect of transmission preferences, transmission preferences is set to " 1B ", carries the sign of information on services as empty package; Be set to " 0x1FFF " by the standard Packet Identifier; Transmit scrambling control by standard and be set to " 00B ", perhaps adopt the usage of transmission scrambling control under the non-NULL bag PID; Be set to " 01B " by the control of standard self adaptation district, perhaps adopt the usage of self adaptation district control under the non-NULL bag PID; Continuous counter is not defined by standard, perhaps adopt the usage of continuous counter under the non-NULL bag PID.
Structure and the content in the district of self adaptation described in the form A can re-start definition, comprise self adaptation section length, information type, information TS bag sum, message header, Information Provider's sign, encryption indicator, check mark, compression sign, version number and byte of padding, the descriptive information available descriptor forms such as message header, Information Provider's sign represent.
Continuous counter described in the form A can be used with the TS package counting facility of PU Payload Unit start indicator and modulator device information receiving terminal outward, is used for the bag of the TS between two initial PU Payload Units is counted.Continuous counter described in the form A is corresponding to low four of the TS package counting facility of the outer information receiving terminal of modulator device.
In addition, described modulation module adopts digital catv signal modulation standard, ground digital television signal modulation standard or satellite digital television signal modulation standard.
In addition, the bag of TS described in above-described embodiment adopts the data broadcast standard of self-defined mode or national digital television system to encapsulate, the encapsulation the information equipment of process outside modulator device in carry out or the module in modulator device in carry out, the data broadcast standard comprises data pipe standard, data flow standard, multi-protocol encapsulation standard and data carousel standard.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (14)
1. one kind has empty modulator device of wrapping replacement function, comprise at least one modulator unit, and described each modulator unit comprises input interface module, TS stream Multiplexing module, scrambling module, TS stream bit rate adaptation module and the modulation module that connects successively, it is characterized in that described each modulator unit also comprises following any one module or any two modules or three modules:
An empty bag replacement module, it is connected between described TS stream bit rate adaptation module and the described modulation module, for Download Info with the empty TS bag that replaces with carrying information that wraps of TS;
The submodule of TS stream Multiplexing module, it adds and is located in the described TS stream Multiplexing module, is used for Download Info, fills the TS bag of carrying information and the empty bag of TS is replaced with the TS bag of carrying information;
The submodule of a TS stream bit rate adaptation module, it adds and is located in the described TS stream bit rate adaptation module, is used for Download Info, fills the TS bag of carrying information and the empty bag of TS is replaced with the TS bag of carrying information.
2. modulator device according to claim 1, it is characterized in that, described TS stream bit rate adaptation module is not set in described each modulator unit, and described input interface module, described TS stream Multiplexing module, described scrambling module and the modulation module of being connected connect successively, and described empty bag replacement module is arranged between described scrambling module and the described modulation module.
3. modulator device according to claim 1, it is characterized in that, in described each modulator unit described scrambling module is not set, and described input interface module, described TS stream Multiplexing module, described TS stream bit rate adaptation module and the modulation module of being connected connect successively.
4. modulator device according to claim 1, it is characterized in that, described each modulator unit does not arrange described scrambling module and described TS stream bit rate adaptation module, and described input interface module, described TS stream Multiplexing module and the modulation module of being connected connect successively, and described empty bag replacement module is arranged between described TS stream Multiplexing module and the described modulation module.
5. modulator device according to claim 1 is characterized in that, described each modulator unit does not arrange TS stream Multiplexing module and scrambling module, and described input interface module, described TS stream bit rate adaptation module be connected modulation module and connect successively.
6. arbitrary described modulator device in 5 according to claim 1 is characterized in that described empty bag replacement module also is used for realizing not replacing the empty bag of TS, and directly with the empty bag output of TS.
7. arbitrary described modulator device in 5 according to claim 1, it is characterized in that the submodule of described TS stream Multiplexing module also is used for realizing not filling the TS bag of carrying information, and fills the empty bag of TS, perhaps be used for realizing not replacing the empty bag of TS, and directly with the empty bag output of TS.
8. arbitrary described modulator device in 5 according to claim 1, it is characterized in that the submodule of described TS stream bit rate adaptation module also is used for realizing not filling the TS bag of carrying information, and fills the empty bag of TS, perhaps be used for realizing not replacing the empty bag of TS, and directly with the empty bag output of TS.
9. arbitrary described modulator device in 5 according to claim 1, it is characterized in that described empty bag replacement module, the submodule of described TS stream Multiplexing module and the submodule of described TS stream bit rate adaptation module all can directly pass through network interface, communication interface, USB interface, disk interface or data storage card interface Download Info.
10. arbitrary described modulator device in 5 according to claim 1 is characterized in that the TS bag of described carrying information identifies for PID number with the empty bag of TS PID number or empty bag of non-TS.
11. arbitrary described modulator device in 5 according to claim 1, it is characterized in that the submodule of described empty bag replacement module, described TS stream Multiplexing module and the submodule of described TS stream bit rate adaptation module all can be reset PID number of the TS of described carrying information bag by the predefined PID of described modulator device number.
12. arbitrary described modulator device in 5 is characterized in that according to claim 1, the TS bag of described carrying information adopts the data broadcast standard of self-defined mode or national digital television system to encapsulate.
13. arbitrary described modulator device in 5 is characterized in that according to claim 1, described modulation module adopts digital catv signal modulation standard, ground digital television signal modulation standard or satellite digital television signal modulation standard.
14. arbitrary described modulator device in 5 according to claim 1, it is characterized in that, described modulator device also comprises a Download Info module that is independent of all modulator units, and the submodule of described empty bag replacement module, described TS stream Multiplexing module and the submodule of described TS stream bit rate adaptation module all can be by calling described Download Info intermodule ground connection by network interface, communication interface, USB interface, disk interface or data storage card interface Download Info.
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| CN 201220557649 CN202841403U (en) | 2012-10-26 | 2012-10-26 | Modulator device with empty packet replacing function |
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| CN 201220557649 CN202841403U (en) | 2012-10-26 | 2012-10-26 | Modulator device with empty packet replacing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103491386A (en) * | 2013-09-18 | 2014-01-01 | 辛欣 | Method and system for transmitting streaming media by utilizing TS package |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103491386A (en) * | 2013-09-18 | 2014-01-01 | 辛欣 | Method and system for transmitting streaming media by utilizing TS package |
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