CN202949445U - Home network system based on power line communication - Google Patents
Home network system based on power line communication Download PDFInfo
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- CN202949445U CN202949445U CN 201220624108 CN201220624108U CN202949445U CN 202949445 U CN202949445 U CN 202949445U CN 201220624108 CN201220624108 CN 201220624108 CN 201220624108 U CN201220624108 U CN 201220624108U CN 202949445 U CN202949445 U CN 202949445U
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- television set
- home gateway
- demodulation module
- power modulation
- modulation demodulation
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Abstract
The utility model provides a home network system based on power line communication. The home network system comprises a home gateway and at least one television. The home gateway comprises at least one tuner, a main processor and a first power modulation and demodulation module. The at least one television comprises a conditional access module, a processor and a second power modulation and demodulation module. Functions of program selection, demodulation, channel decoding and the like are arranged in the home gateway, and functions of descrambling, information source decoding and the like are configured in the at least one television, so that a single program transmission interface between the home gateway and the at least one television is guaranteed; and only one video circuit is arranged on the interface, circuits on the interface between the home gateway and the at least one television is as few as possible, the transmission speed through the interface is as low as possible, and accordingly, the transmission cost is reduced.
Description
Technical field
The utility model relates to the communications field, is specifically related to a kind of domestic network system based on power line communication.
Background technology
Generally there is multiple TV set in the average family of present present situation, from the user point of view, and one, be reluctant to mean every television set and purchase a set-top box, spend too highly, they are two years old, every television set need to draw a camera cable, and the position fixes, trouble and inconvenient.
In order to address this problem, at present, a kind of scheme that merges set-top box is arisen at the historic moment, but in the research and practice process to prior art, inventor of the present utility model finds, when multiple TV set is connected with a unit mahine top box, if being connected between HDTV and high definition set top box because its transmission rate can reach 13Gbps, can cause the Cost Problems of ultrahigh speed transmission and interface standard problem thereof and 13Gbps transmission.
Summary of the invention
The utility model embodiment provides a kind of domestic network system based on power line communication, can realize the centralized control to the many TVs of household internal, has guaranteed the low transmission rate between television set and home gateway, thereby has reduced transmission cost.
A kind of domestic network system based on power line communication is characterized in that, comprising: home gateway and at least one television set,
Described home gateway comprises at least one tuner, primary processor and power modulation demodulation module one; Shown in television set comprise Conditional Access Module, processor and power modulation demodulation module two; Described home gateway with described television set by power modulation demodulation module one and power modulation demodulation module two, intercom mutually based on the power line communication network in family;
When TV reception, the processor of television set one sends to described home gateway with programme selection signal, described programme selection signal carries identification information, and described identification information is used for indicating the television set that sends described programme selection signal and user and wants the programme information watched; According to described identification information, the primary processor of described home gateway selects the high frequency corresponding with described television set one first, described high frequency is first carries out channel-decoding and demodulation according to described programme selection signal, and the program stream of described primary processor after with the first processing of described high frequency sends to described television set one; The processor of described television set one carries out descrambling according to the descrambling information that described Conditional Access Module transmits to the program stream that described home gateway sends, program stream after descrambling is carried out compression coding, source coding, be reduced into audio-video signal and export on described television set.
The domestic network system based on power line communication that the utility model provides, the functions such as program selection, demodulation, channel-decoding are placed in home gateway, with functional configuration such as descrambling, source codings in television set, thereby guaranteed that the cross section between home gateway and television set is that single programs is transmitted the cross section, only has a video loop on the cross section, the utility model can make on cross section between home gateway and television set the loop few as much as possible, thereby cause by the transmission rate in cross section lowly as far as possible, reduce transmission cost.
Description of drawings
Fig. 1 is based on the structural representation of the domestic network system of power line communication in the utility model embodiment;
Fig. 2 is based on the Digital Transmission process schematic diagram of the anolog TV signals of the domestic network system of power line communication in the utility model embodiment.
Embodiment
The utility model embodiment provides a kind of domestic network system based on power line communication, as shown in Figure 1, below is elaborated.
The domestic network system based on power line communication that the utility model embodiment provides comprises: home gateway 101 and at least one television set 102.
Need to prove, the 26S Proteasome Structure and Function of the power modulation demodulation module 2 1023 in the power modulation demodulation module 1 in home gateway 101 and television set 102 is the same, is all be used to the network function of realizing power line communication.In this article, each television set 102 is that Digital Television and function are identical, and each tuner 1011 function is identical.
Tuner 1011 can be identical with the quantity of television set 102, and the channel selection operation of a television set 102 can be fixed by a tuner 1011 and process.
The below will be introduced the workflow based on the domestic network system of power line communication.
When TV reception, the user can send programme selection signal by the remote controller of some television sets 102, be used for to select oneself to want the TV seen, this programme selection signal carries identification information, identification information can be used in and indicates the television set that sends this programme selection signal and user and want the programme information watched, and then the processor 1022 of this television set 102 can send to home gateway 101 with this programme selection signal.
The identification information that carries according to the programme selection signal that receives, the primary processor 1012 of home gateway 101 is selected a certain tuner 1011 corresponding with this television set 102, this tuner 1011 carries out channel-decoding and demodulation according to programme selection signal, and the program stream after primary processor 1012 is processed this tuner 1011 sends to this television set 102.
The processor 1022 of this television set 102 is according to condition reception (CA, Condition Acception) descrambling information that transmits of module 1021 carries out descrambling to the program stream that home gateway 101 sends, program stream after descrambling is carried out compression coding, source coding, be reduced into original audio-video signal and export on this television set 102.
Optionally, primary processor 1012 can be placed on the mainboard of home gateway 101, and the connecting interface between the mainboard of each tuner 1011 and home gateway 101 is USB 2.0.
Referring to Fig. 2, based on the domestic network system based on power line communication that the present embodiment provides, the transmitting procedure of analog signal is specific as follows:
go out by the digital camera lens shooting, the audio-video signal of analog signaling passes through digital camera, television operating center, through a series of information source coding, compressed encoding, time division multiplexing, the CA scrambling, time division multiplexing, chnnel coding, Channel Modulation, the process of frequency division multiplexing, convert digital signal to and enter into home gateway by analogue transmission, home gateway is selected the tuner corresponding with television set, through a series of frequency division multiplexing, channel demodulation, channel-decoding, digital signal after time division multiplexed process output is processed enters into television set, at inside television process CA descrambling, time division multiplexing, compression coding, the source coding process, the audio-video signal that is reduced into analog signaling is exported on television display screen.
According to the transmitting procedure of analog signal, can mark off several standards and transmit the cross section, as shown in Figure 2, be specially section A to cross section G, totally 8 cross sections, the cross section E transmission between home gateway and television set be scrambled number compressed video transport stream, be specially:
(1) if television set is Standard Definition Television, E place, cross section only has a loop, and transmission rate is 4Mbps.
(2) if television set is HDTV (High-Definition Television), E place, cross section only has a loop, and transmission rate is 8Mbps.
the domestic network system based on power line communication that the utility model embodiment provides, cross section between home gateway and television set is made as cross section E, namely fix between CA descrambling and time division multiplexing, realized program is selected, demodulation, the channel-decoding function is placed in home gateway, with descrambling, the source coding functional configuration is in television set, guaranteed that the cross section between home gateway and television set is that single programs is transmitted the cross section, only has a video loop on the cross section, the utility model embodiment can make on cross section between home gateway and television set the loop few as much as possible, thereby cause by the transmission rate in cross section low as far as possible, reduce transmission cost.
Claims (3)
1. the domestic network system based on power line communication, is characterized in that, comprising: home gateway (101) and at least one television set (102),
Described home gateway (101) comprises at least one tuner (1011), primary processor (1012) and power modulation demodulation module one (1013); Shown in television set (102) comprise condition reception (CA) module (1021), processor (1022) and power modulation demodulation module two (1023); Described power modulation demodulation module one (1013) and described power modulation demodulation module two (1023) be used for based on family power line communication network, intercom mutually between described home gateway (101) and described television set (102);
the processor (1022) of described television set (102) is used for when TV reception, programme selection signal is sent to described home gateway (101), described programme selection signal carries identification information, described identification information is used for indicating the television set (102) that sends described programme selection signal and user and wants the programme information watched, the descrambling information that also is used for transmitting according to described Conditional Access Module (1021) carries out descrambling to the program stream that described home gateway (101) sends, program stream after descrambling is carried out compression coding, source coding, be reduced into audio-video signal in the upper output of described television set (102),
The primary processor (1012) of described home gateway (101) is used for according to described identification information, select the tuner (1011) corresponding with described television set (102), described tuner (1011) is used for carrying out channel-decoding and demodulation according to described programme selection signal, and the program stream after described primary processor (1012) also is used for described tuner (1011) is processed sends to described television set (102).
2. domestic network system according to claim 1, is characterized in that,
Described power modulation demodulation module one (1013) and described power modulation demodulation module two (1023) be used for based on family power line communication network, intercom mutually between described home gateway (101) and described television set (102), be specially:
Power line communication network, the communication mode with statistic multiplexing between described home gateway (101) and described television set (102) that described power modulation demodulation module one (1013) and described power modulation demodulation module two (1023) is used for based on family intercom mutually.
3. domestic network system according to claim 1, is characterized in that,
Described power modulation demodulation module one (1013) and described power modulation demodulation module two (1023) be used for based on family power line communication network, intercom mutually between described home gateway (101) and described television set (102), be specially:
Described power modulation demodulation module one (1013) and described power modulation demodulation module two (1023) be used for based on family power line communication network, intercom mutually with time-multiplexed communication mode between described home gateway (101) and described television set (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624108 CN202949445U (en) | 2012-11-22 | 2012-11-22 | Home network system based on power line communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624108 CN202949445U (en) | 2012-11-22 | 2012-11-22 | Home network system based on power line communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202949445U true CN202949445U (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220624108 Expired - Lifetime CN202949445U (en) | 2012-11-22 | 2012-11-22 | Home network system based on power line communication |
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| Country | Link |
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| CN (1) | CN202949445U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166816A (en) * | 2012-11-22 | 2013-06-19 | 广东广联电子科技有限公司 | Home network system based on power line communication (PLC) |
| CN105141341A (en) * | 2015-08-17 | 2015-12-09 | 苏州诺思医疗技术有限公司 | Composite signal single cable transmission system and composite signal single cable transmission method |
-
2012
- 2012-11-22 CN CN 201220624108 patent/CN202949445U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103166816A (en) * | 2012-11-22 | 2013-06-19 | 广东广联电子科技有限公司 | Home network system based on power line communication (PLC) |
| CN105141341A (en) * | 2015-08-17 | 2015-12-09 | 苏州诺思医疗技术有限公司 | Composite signal single cable transmission system and composite signal single cable transmission method |
| CN105141341B (en) * | 2015-08-17 | 2018-03-30 | 苏州诺思医疗技术有限公司 | The single cable communication system of mixed signal and transmission method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191126 Address after: B353, building 13, No. 232, Waihuan East Road, Xiaoguwei street, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Guanglian Electronic Technology Co.,Ltd. Address before: 510006 Guangdong city of Guangzhou province Panyu District Xiaoguwei Street Outer Ring Road No. 232 building 13 B350 Co-patentee before: Guangzhou Guanglian Digital Home Industry Technology Research Institute Patentee before: Guangdong Guanglian Electronic Technology Co.,Ltd. |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: GUANGDONG GUANGLIAN ELECTRONIC TECHNOLOGY Co.,Ltd. Document name: Notification of Decision on Request for Restoration of Right |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: GUANGZHOU GUANGLIAN DIGITAL HOME INDUSTRY TECHNOLOGY Research Institute Document name: Notification of Passing Examination on Formalities |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210415 Address after: 050081 no.589, Zhongshan West Road, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: THE 54TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group Corp. Address before: 510006 b353, building 13, 232 Waihuan East Road, Xiaoguwei street, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG GUANGLIAN ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |