CN204377006U - Based on the modulation-demodulation device of G.hn - Google Patents
Based on the modulation-demodulation device of G.hn Download PDFInfo
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- CN204377006U CN204377006U CN201520100346.9U CN201520100346U CN204377006U CN 204377006 U CN204377006 U CN 204377006U CN 201520100346 U CN201520100346 U CN 201520100346U CN 204377006 U CN204377006 U CN 204377006U
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Abstract
Based on the modulation-demodulation device of G.hn, comprise CPU master chip, CPU master chip adopts the communication chip supporting G.hn consensus standard, first coaxial cable bnc interface module and the second coaxial cable bnc interface module are used for receiving and sending data-signal, cable broadcasting signal, Ethernet module is all connected with CPU master chip with WiFi module, for transmission and the reception of data-signal, CPU master chip is also connected with pci bus, pci bus is connected with EPROM module, FLASH module, physics MAC module, and physics MAC module is connected with tuner with SRAM.Stablely under its object is to provide a kind of many concurrent users situation provide at least 50M bandwidth to register one's residence, support the modulation-demodulation device based on G.hn of the watching of pole high-definition program, program request, download.
Description
Technical field
The utility model relates to the modulation-demodulation device based on G.hn utilizing and coaxial cable carries out transfer of data.
Background technology
The domestic consensus standard carrying out transfer of data on coax substantially adopts and supports that DOCSIS2.0 standard carries out transfer of data (be commonly called as little C and net transformation) at present, huge funnel noise when the physical topological structure of this consensus standard causes large concurrent user, forms network congestion.Directly translate into end-user experience bandwidth unstable, even cannot surf the Net.And only support that maximum 10M bandwidth is registered one's residence at this consensus standard, the broadcast of high quality image audio/video file cannot be supported.
Utility model content
The purpose of this utility model is stable under being to provide a kind of many concurrent users situation provides at least 50M bandwidth to register one's residence, and supports the modulation-demodulation device based on G.hn of the watching of pole high-definition program, program request, download.
The utility model is based on the modulation-demodulation device of G.hn, comprise CPU master chip, first coaxial cable bnc interface module, second coaxial cable bnc interface module, usb interface module, Ethernet module, WiFi module, SDRAM, described CPU master chip adopts the communication chip supporting G.hn consensus standard, described first coaxial cable bnc interface module, second coaxial cable bnc interface module is all connected with CPU master chip, first coaxial cable bnc interface module is for receiving data-signal, cable broadcasting signal, second coaxial cable bnc interface module is for sending data-signal, cable broadcasting signal, described usb interface module is connected with CPU master chip, for connecting external expansion module, described Ethernet module is all connected with CPU master chip with WiFi module, for transmission and the reception of data-signal, described SDRAM and CPU master chip connects, store for carrying out dynamic random to data to ensure the complete of exchanges data,
Described CPU master chip is also connected with pci bus, described pci bus is connected with EPROM module, FLASH module, physics MAC module, described physics MAC module is connected with tuner with SRAM, described tuner is used for the signal after frequency spectrum again to distribute according to different frequency, exports after carrying out address assignment by physics MAC module.
The utility model is as follows based on the beneficial effect of the modulation-demodulation device of G.hn:
1) CPU master chip adopts the communication chip supporting G.hn consensus standard, this chip supports descending maximum 1G, and actual effectively 800M bandwidth is registered one's residence, in many concurrent users situation, use this device can ensure to stablize, at least the bandwidth of 50M register one's residence, meet the watching of pole high-definition program, program request and download.
2) signal constrained input uses different coaxial cable bnc interface modules respectively, guarantees that frequcny modulation data is clear, not chaotic.
3) owing to being provided with WiFi module, in doors structure load bearing wall too much inconvenient complicated wiring, use this device need not to construct wiring, rapid and convenient.
Below in conjunction with accompanying drawing, the modulation-demodulation device based on G.hn of the present utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the modulation-demodulation device structural representation of the utility model based on G.hn.
Embodiment
See Fig. 1, the utility model is based on the modulation-demodulation device of G.hn, comprise CPU master chip, first coaxial cable bnc interface module (BNC:Bayonet Nut Connector), second coaxial cable bnc interface module, usb interface module, Ethernet module (Ethernet: Ethernet), WiFi module, SDRAM (SDRAM:Synchronous Dynamic Random Access Memory, synchronous DRAM), CPU master chip adopts the communication chip supporting G.hn consensus standard, perform UTI-T9660/9661 international standard, first coaxial cable bnc interface module, second coaxial cable bnc interface module is all connected with CPU master chip, first coaxial cable bnc interface module is for receiving data-signal, cable broadcasting signal, second coaxial cable bnc interface module is for sending data-signal, cable broadcasting signal, usb interface module is connected with CPU master chip, for connecting external expansion module, Ethernet module is all connected with CPU master chip with WiFi module, for transmission and the reception of data-signal, Ethernet module supports RJ-45LAN mouth, WiFi module has WiFi function, no matter so user uses wireless router or ordinary router, can realize getting online without being tethered to a cable, SDRAM and CPU master chip connects, and carries out dynamic random store to ensure the complete of exchanges data for the formatted data after the spectrum allocation may again to input,
CPU master chip is also connected with pci bus, pci bus is connected with EPROM module, FLASH module, physics MAC module, physics MAC module and SRAM (SRAM:Static Random Access Memory, static random access memory) be connected with tuner, tuner is used for the signal after frequency spectrum again to distribute according to different frequency, exports after carrying out address assignment by physics MAC module.Physics MAC module is distributed according to frequency form, the broadcast television signal of more than signal type 100hz, the Internet data signals of below 70hz.To difference, the effect of physics MAC module and tuner judges that signal carries out demodulation exactly, export, carried out the adjustment of data format by distinct interface end according to broadcast television signal and Internet data signals frequency spectrum form.
The light signal of data, wired broadcasting accesses the modulation-demodulation device of the utility model based on G.hn through being converted to the signal of telecommunication by the first coaxial cable bnc interface module, being separated of broadcast singal and digital signal is completed in the apparatus through CPU master chip, and by the second coaxial cable bnc interface model calling Intelligent set top box, the data-signal after conversion is supported intelligent terminal online by Ethernet model calling router or by the output of WiFi module.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (1)
1. based on the modulation-demodulation device of G.hn, it is characterized in that: comprise CPU master chip, first coaxial cable bnc interface module, second coaxial cable bnc interface module, usb interface module, Ethernet module, WiFi module, SDRAM, described CPU master chip adopts the communication chip supporting G.hn consensus standard, described first coaxial cable bnc interface module, second coaxial cable bnc interface module is all connected with CPU master chip, first coaxial cable bnc interface module is for receiving data-signal, cable broadcasting signal, second coaxial cable bnc interface module is for sending data-signal, cable broadcasting signal, described usb interface module is connected with CPU master chip, for connecting external expansion module, described Ethernet module is all connected with CPU master chip with WiFi module, for transmission and the reception of data-signal, described SDRAM and CPU master chip connects, store for carrying out dynamic random to data to ensure the complete of exchanges data,
Described CPU master chip is also connected with pci bus, described pci bus is connected with EPROM module, FLASH module, physics MAC module, described physics MAC module is connected with tuner with SRAM, described tuner is used for the signal after frequency spectrum again to distribute according to different frequency, exports after carrying out address assignment by physics MAC module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100346.9U CN204377006U (en) | 2015-02-12 | 2015-02-12 | Based on the modulation-demodulation device of G.hn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520100346.9U CN204377006U (en) | 2015-02-12 | 2015-02-12 | Based on the modulation-demodulation device of G.hn |
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| Publication Number | Publication Date |
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| CN204377006U true CN204377006U (en) | 2015-06-03 |
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| CN201520100346.9U Active CN204377006U (en) | 2015-02-12 | 2015-02-12 | Based on the modulation-demodulation device of G.hn |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105338375A (en) * | 2014-06-17 | 2016-02-17 | 北京司响无限文化传媒有限公司 | Method and apparatus for transmitting specific data in digital video broadcasting, and receiving terminal |
| CN107104873A (en) * | 2017-04-18 | 2017-08-29 | 珠海数字动力科技股份有限公司 | A kind of community local area network group network system based on carrier equipment |
| CN108809647A (en) * | 2017-04-26 | 2018-11-13 | 国基电子（上海）有限公司 | The startup method and system of cable modem |
-
2015
- 2015-02-12 CN CN201520100346.9U patent/CN204377006U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105338375A (en) * | 2014-06-17 | 2016-02-17 | 北京司响无限文化传媒有限公司 | Method and apparatus for transmitting specific data in digital video broadcasting, and receiving terminal |
| CN107104873A (en) * | 2017-04-18 | 2017-08-29 | 珠海数字动力科技股份有限公司 | A kind of community local area network group network system based on carrier equipment |
| CN108809647A (en) * | 2017-04-26 | 2018-11-13 | 国基电子（上海）有限公司 | The startup method and system of cable modem |
| CN108809647B (en) * | 2017-04-26 | 2021-02-19 | 国基电子（上海）有限公司 | Starting method and system of cable modem |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |