CN110519665B - PON intelligent home networking system based on coaxial line communication - Google Patents

The PON intelligent home networking system based on coaxial line communication provided by the invention realizes the wired interconnection of the G.hn repeater 2 and the intelligent home gateway through network line interconnection, realizes the wired interconnection between the G.hn repeater 2 and a plurality of sub routers by utilizing the coaxial line reserved in the room, and further realizes the wired interconnection of the intelligent home gateway and the sub routers by communicating the intelligent home gateway and the sub routers through the G.hn repeater 2, thereby ensuring the maximization of data bandwidth utilization, improving network throughput, reducing transmission delay, reducing extra wiring by fully utilizing the existing coaxial resources, effectively reducing networking cost and improving market competitiveness; the wireless interconnection effect of the WIFI communication module built in the intelligent home gateway and the sub-router is combined, so that the full coverage of the network is realized, and the user experience is enhanced.

PON intelligent home networking system based on coaxial line communication

Technical Field

The invention relates to the technical field of communication, in particular to a PON intelligent home networking system based on coaxial line communication.

Background

The coaxial line is a common signal transmission line, the structure of the coaxial line is sequentially provided with an inner conductor, an insulating medium, an outer conductor (shielding layer) and a sheath 4 part from inside to outside, a copper core in the center is used for transmitting high level, and insulating materials are used for coating; the periphery of the insulating material is a cylindrical metal thin layer coaxial with the copper core and used for transmitting low level and playing a role of shielding.

The g.hn international standard incorporates the power line, twisted pair and coaxial cable into the wired transmission medium of the home network, and can make the best use of various laid cables, thereby providing practical physical support for popularization of the internet of things on the network coverage and terminal access level.

The intelligent home gateway is an intelligent heart of a house, and can realize the functions of system information acquisition, information input, information output, centralized control, remote control, linkage control and the like. The intelligent home gateway has two functions of an intelligent home control hub and wireless routing, one side is responsible for specific security alarm, home appliance control and electricity consumption information acquisition, and performs data interaction with products such as an intelligent interaction terminal in a wireless mode; the other side is also provided with a wireless routing function, so that the wireless network has excellent wireless performance, high network security protection level and large wireless signal coverage area.

Currently, home intelligent gateways have entered common families, and various WIFI routers are very popular, but in existing home applications, the two are only used in combination through a wireless network, namely, a so-called WIFI MESH technology is utilized to perform wireless networking, when a user moves from one WIFI coverage area to another WIFI coverage area, obvious blocking or delay occurs, even a disconnection situation occurs, and user experience and use are seriously affected. And because no actual wired connection exists, the networking is performed only through the WIFI MESH technology, and the throughput and the time delay are reduced.

Disclosure of Invention

The invention provides a PON intelligent home networking system based on coaxial line communication, which solves the technical problems that WIFI is independent when an existing gateway and a router are in wireless networking, network throughput is low, transmission is prolonged, and a user can have obvious blocking or delay rather than disconnection when the WIFI is switched between the gateway and the router due to the mobile position.

In order to solve the technical problems, the invention provides a PON intelligent home networking system based on coaxial line communication, which comprises a gateway, a G.hn relay and a plurality of G.hn sub routers, wherein the gateway and the G.hn relay are connected through network lines, and the G.hn sub routers are independently connected with the G.hn relay through coaxial lines.

The gateway is an intelligent home gateway and is provided with a network input port and a PON port for accessing broadband signals;

And a network output port is also arranged and is used for connecting the G.hn relay and transmitting the processed broadband signal to the G.hn relay.

The G.hn repeater is provided with a network input port and is used for connecting the network output port of the home intelligent gateway to perform wired signal mutual transmission;

and the plurality of radio frequency output ports are also arranged and are used for independently connecting the plurality of G.hn sub-routers through the coaxial line so as to realize mutual transmission of wired signals between the G.hn relay and each G.hn sub-router.

Each g.hn sub-router is provided with a radio frequency port, and the radio frequency port is used for connecting one radio frequency port of the g.hn relay and realizing wired signal mutual transmission between the g.hn relay and each g.hn sub-router and between every two g.hn sub-routers.

The g.hn relay and each g.hn sub-router are built with a g.hn module, and the g.hn module is a communication chip supporting a g.hn protocol standard.

And carrying out wired data interaction between the G.hn relay and each G.hn sub-router and between the plurality of G.hn sub-routers according to a G.hn protocol through the coaxial line.

The gateway and the plurality of G.hn sub routers are respectively internally provided with a WIFI communication module, and the WIFI communication modules are connected in a wireless manner to form an interconnection WIFI network;

And the WIFI communication modules are interconnected through an EASY MESH protocol.

The network cable and the coaxial cable are also used for supporting power supply of a power supply.

The PON intelligent home networking system based on coaxial line communication provided by the invention realizes the wired interconnection of the G.hn relay and the intelligent home gateway through network line interconnection, realizes the wired interconnection between the G.hn relay and the plurality of sub routers by utilizing the coaxial line reserved in the room, and further realizes the wired interconnection of the intelligent home gateway and the sub routers by communicating the intelligent home gateway and the sub routers through the G.hn relay, thereby ensuring the maximization of data bandwidth utilization, improving network throughput, reducing transmission delay, and reducing extra wiring by fully utilizing the existing coaxial resources, effectively reducing networking cost and improving market competitiveness; the wireless interconnection effect of the WIFI communication module built in the intelligent home gateway and the sub-router is combined, so that the full coverage of the network is realized, and the user experience is enhanced.

Drawings

Fig. 1 is a block diagram of a PON intelligent home networking system based on coaxial line communication according to an embodiment of the present invention;

fig. 2 is a block diagram of the g.hn repeater in fig. 1 according to an embodiment of the present invention;

FIG. 3 is a block diagram of the G.hn sub-router of FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a circuit diagram of the G.hn amplifier hardware of FIGS. 2 and 3 according to an embodiment of the present invention;

FIG. 5 is a circuit diagram of the G.hn transformer hardware in FIGS. 2 and 3 according to an embodiment of the present invention;

FIG. 6 is a circuit diagram of the G.hn band pass filter hardware of FIGS. 2 and 3 according to an embodiment of the present invention;

wherein: gateway 1, g.hn relay 2, g.hn sub-router 3.

Detailed Description

The following examples are given for the purpose of illustration only and are not to be construed as limiting the invention, including the drawings for reference and description only, and are not to be construed as limiting the scope of the invention as many variations thereof are possible without departing from the spirit and scope of the invention.

As shown in fig. 1, in this embodiment, the PON intelligent home networking system provided by an embodiment of the present invention includes a gateway 1, a g.hn repeater 2, which are connected by a network cable, and a plurality of g.hn sub routers 3, which are independently connected to the g.hn repeater 2 by coaxial lines.

The gateway 1 is an intelligent home gateway and is provided with a network input port and a PON port for accessing broadband signals; the PON port refers to an optical port in this embodiment;

and a network output port is also provided and is used for connecting the G.hn repeater 2 and transmitting the processed broadband signal to the G.hn repeater 2.

The G.hn repeater 2 is provided with a network input port and is used for connecting the network output port of the home intelligent gateway to perform wired signal mutual transmission; the network input port is a POE network input port;

The system is also provided with a plurality of radio frequency output ports, which are used for independently connecting the plurality of G.hn sub-routers 3 through the coaxial line to realize the mutual transmission of wired signals between the G.hn relay 2 and each G.hn sub-router 3; the radio frequency output port is an RF radio frequency port.

The plurality of g.hn sub-routers 3 at least includes a g.hn sub-router 31, a g.hn sub-router 32, and a g.hn sub-router 3n, where n is at least 2, each g.hn sub-router 3 is provided with a radio frequency port, and the radio frequency port is used to connect with one radio frequency port of the g.hn repeater 2, so as to implement wired signal mutual transmission between the g.hn repeater 2 and each g.hn sub-router 3, and between every two g.hn sub-routers 3.

The g.hn repeater 2 and each of the g.hn sub routers 3 have built-in g.hn modules, which are communication chips supporting g.hn protocol standards.

And the G.hn relay 2 and each G.hn sub router 3 and the plurality of G.hn sub routers 3 are subjected to wired data interaction according to a G.hn protocol through the coaxial line.

The gateway 1 and the plurality of G.hn sub routers 3 are respectively internally provided with a WIFI communication module, and the WIFI communication modules form an interconnection WIFI network through wireless connection;

And the WIFI communication modules are interconnected through an EASY MESH protocol.

The network cable and the coaxial cable are also used for supporting power supply of a power supply.

Referring to fig. 2, as a specific embodiment provided by the present application, the g.hn repeater 2 includes CPU, DDR, FLASH, a g.hn signal amplifier, a g.hn signal band-pass filter, a g.hn transformer, and a plurality of radio frequency ports; and a network input port and a multi-path RF port, the G.hn repeater 2 is powered by POE.

And the multi-path RF port is also used for supplying POE power to a plurality of G.hn sub-routers at the lower stage through connecting the network input port.

The g.hn module in the g.hn repeater 2 includes the CPU, the g.hn signal amplifier, the g.hn signal bandpass filter, and the g.hn transformer.

The signal output working principle of the g.hn repeater 2 is as follows:

And receiving an uplink gateway signal through the network input port, processing the uplink gateway signal into a G.hn modulation signal by the CPU, amplifying the signal by the G.hn signal amplifier, converting the signal into a common mode signal by the G.hn transformer, and outputting the common mode signal to a lower-level G.hn sub-router through the RF radio frequency port. Simultaneously, the RF port supplies power to the lower-level G.hn sub-router through the coaxial line.

The signal input working principle of the g.hn repeater 2 is as follows:

And receiving a modulation signal of a lower-stage G.hn sub-router through the RF radio frequency port, converting the modulation signal into a differential signal through the G.hn transformer, inputting the differential signal into a G.hn signal band-pass filter to filter out an out-of-band signal, and further transmitting the out-of-band signal into the CPU for demodulation. And if the signal transmission between every two G.hn sub-routers is needed, the demodulation signals in the DDR or FLASH memory are remodulated and output to the corresponding G.hn sub-routers through a signal output workflow.

Referring to fig. 3, as a specific embodiment provided by the present application, the g.hn sub-router 3 includes a CPU, a WIFI module, a FLASH, a DDR, a g.hn signal amplifier, a g.hn signal band-pass filter, and a g.hn transformer, and a network port and an RF radio frequency port, where the WIFI module includes a 2.4GWIFI module and a 5GWIFI module; the network port is an RJ-45 port.

The g.hn module in the g.hn sub-router 3 includes the CPU, the g.hn signal amplifier, the g.hn signal bandpass filter, and the g.hn transformer.

The signal output working principle of the g.hn sub-router 3 is as follows:

and receiving a G.hn signal of an uplink G.hn repeater through the RF radio frequency port, converting the G.hn signal into a differential signal through the G.hn transformer, performing filtering processing through the G.hn signal band-pass filter, performing processing demodulation through the CPU, and finally distributing the differential signal to a user through the 2.4GWIFI module, the 5GWIFI module or the network port.

The signal input working principle of the g.hn sub-router 3 is as follows:

The signals received through the 2.4GWIFI GWIFI module or the network port are processed into G.hn modulated signals through the CPU, then are amplified through a G.hn amplifier, are converted into common mode signals through the G.hn transformer, and then are led to the RF port to be output to the upper-level G.hn repeater.

Referring to fig. 4, the LE87100NQCT amplifier is selected for the g.hn repeater 2 and the g.hn sub-router 3.

Referring to fig. 5, the g.hn transformers in the g.hn repeater 2 and the g.hn sub-router 3 are T802 transformers.

The g.hn band-pass filters in the g.hn repeater 2 and the g.hn sub-router 3 are each composed of resistors R1 to R3, capacitors C1 to CC8, and inductors L1 to L4, and specific connection relationships are shown in fig. 6.

The WIFI module comprises a 2.4GWIFI module and a 5GWIFI module; the 2.4GWIFI module selects HI5620 chip, and the 5. 5GWIFI module selects Hi5621 chip.

The communication mode of the PON intelligent home networking system is divided into wired communication and wireless communication, and the specific workflow of the wired communication is as follows:

The intelligent home gateway accesses broadband signals through a network input port and a PON port, performs descrambling and decoding processing on the received audio and video data streams in the broadband signals, distributes the audio and video data streams to the G.hn repeater 2 through a network output port, modulates the received audio and video data streams through the G.hn module, performs signal splitting according to a plurality of configured output interfaces, and finally transmits the audio and video data streams to a plurality of G.hn sub-routers 3 through coaxial lines according to a specific path, wherein the plurality of G.hn sub-routers 3 can also realize data mutual transmission through the coaxial lines.

The specific workflow of the wireless communication is as follows:

The intelligent home gateway and the plurality of G.hn sub routers 3 perform wireless mutual transmission of signals by means of an interconnection WIFI network established by the built-in WIFI communication module and an EASY MESH protocol of WIFI.

The PON intelligent home networking system based on coaxial line communication provided by the embodiment of the invention realizes the wired interconnection of the G.hn repeater 2 and the intelligent home gateway through network line interconnection, realizes the wired interconnection between the G.hn repeater 2 and a plurality of sub routers by utilizing the coaxial line reserved indoors, and further realizes the wired interconnection of the intelligent home gateway and the sub routers through the communication of the G.hn repeater 2 between the intelligent home gateway and the sub routers, thereby ensuring the maximization of data bandwidth, improving network throughput, reducing transmission delay, reducing extra wiring by fully utilizing the existing coaxial resources, effectively reducing networking cost and improving market competitiveness; the wireless interconnection effect of the WIFI communication module built in the intelligent home gateway and the sub-router is combined, so that the full coverage of the network is realized, and the user experience is enhanced.

The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.