CN211127830U

CN211127830U - Internet access system based on coaxial cable

Info

Publication number: CN211127830U
Application number: CN202020318830.XU
Authority: CN
Inventors: 朱智明
Original assignee: CIG Shanghai Co Ltd
Current assignee: CIG Shanghai Co Ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-07-28
Anticipated expiration: 2030-03-13

Abstract

the utility model discloses a networking system based on coaxial cable, divide ware, second passive equipment, first router, at least one third passive equipment and the second router that links to each other with every third passive equipment including first passive equipment, merit, wherein, first passive equipment respectively with optic fibre-coaxial cable converting equipment with the merit divides the ware to connect, the merit is divided the ware and is connected with second passive equipment and every third passive equipment, and second passive equipment and first router are connected, and first passive equipment and second passive equipment are used for restraining the L AN signal, and third passive equipment is used for restraining WAN signal and cable TV signal.

Description

Internet access system based on coaxial cable

Technical Field

The utility model relates to an online system, in particular to online system based on coaxial cable.

Background

In some areas, such as the north american area, most houses are built earlier, and the rooms are finished without access to network cables and optical fibers, but with coaxial cables connected for cable television viewing. With the popularization of the internet later, people have the demand of surfing the internet, and in order to meet the demand, a technology for accessing the internet by means of a coaxial cable is started to appear.

AN operator generally accesses AN optical fiber into a garage of a user, and converts the optical fiber into a WAN (Wide area network) coaxial cable through optical fiber-coaxial conversion equipment, because the distance between the garage and a room is generally far, in order to avoid digging soil and re-laying the cable into the room, the passive equipment A is considered, after the passive equipment A is combined with the existing cable television cable, the cable can be connected to a power divider outside the room by virtue of the original cable television cable, a plurality of paths are divided and accessed into each room through the coaxial cable, but only the router A is arranged in a living room, WAN signals are converted into LAN (local area network) signals, and then the WAN signals are communicated with the router B of each room, so that the function of surfing the Internet in each room through the coaxial cable is achieved.

the frequency allocation of the current coaxial WAN signal and the L AN signal is as shown in fig. 1 (horizontal axis unit MHz), it can be seen that the WAN signal connected to the outside has only 50MHz bandwidth, and the L AN signal connected between rooms has 500MHz bandwidth, which causes the waste of communication bandwidth between rooms, but the actual bandwidth of the WAN signal to the outside is blocked, so that higher network speed cannot be realized.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an online system based on coaxial cable in order to overcome the unreasonable defect of signal frequency distribution of surfing the net among the prior art.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

An internet system based on coaxial cable, comprising a fiber-coaxial cable conversion device for converting optical signals into WAN signals, characterized in that the internet system further comprises: a first passive device, a power splitter, a second passive device, a first router, at least one third passive device, and a second router connected to each third passive device,

The first passive device is respectively connected with the optical fiber-coaxial cable conversion device and the power divider, the power divider is connected with the second passive device and each third passive device, the second passive device is connected with the first router,

the first and second passive devices are for suppressing the L AN signal and the third passive device is for suppressing the WAN signal and the cable television signal.

preferably, the bandwidth of the L AN signal is equal to or greater than the bandwidth of the WAN signal.

Preferably, the first passive device is configured to merge the cable television signal and the WAN signal into the power divider.

Preferably, the second passive device is for feeding the WAN signal into the first router.

preferably, the first router is configured to convert the WAN signal into AN L AN signal and output the L AN signal to the power divider.

preferably, the third passive device is configured to receive the L AN signal from the power splitter and send the L AN signal to the corresponding second router.

preferably, the cable television signal, the WAN signal and the L AN signal are all transmitted over coaxial cable.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

the utility model discloses a through the passive equipment that sets up in different positions, restrain the unnecessary signal and only let the useful signal pass through, accomplish simultaneously and close way or branch circuit function, and the single cost of passive equipment is only about 20 yuan for the second passive equipment, take the living room as AN example, its main effect is with three kinds of frequency signal in the coaxial cable of input namely cable TV, L AN and WAN signal, the unnecessary signal of filtering respectively, only let the useful signal of corresponding route pass through.

Drawings

fig. 1 is a schematic diagram of frequency allocations for a cable television signal, a WAN signal, and AN L AN signal in the prior art.

Fig. 2 is a block diagram of an internet access system according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of signal transmission between a first router and a second passive device in a living room according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of signal transmission between a third passive device and a second router in a room according to an embodiment of the present invention.

fig. 5 is a schematic diagram of frequency allocation of a cable tv signal, a WAN signal and AN lan signal according to AN embodiment of the present invention.

Detailed Description

The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.

With reference to fig. 2 to 5, the technical solution of the present invention is illustrated in an embodiment. The internet access system based on the coaxial cable in this embodiment includes an optical fiber-coaxial cable conversion device for converting an optical signal into a WAN signal, and: the system comprises a first passive device 11, a power divider 2, a second passive device 12, a first router 31, at least one third passive device 13 and a second router 32 connected with each third passive device 13, wherein the first passive device 11 is arranged in a garage, the second passive device 12 and the first router 31 are arranged in a living room, and the two third passive devices 13 and the two second routers 32 are respectively arranged in two rooms.

the first passive device 11 is respectively connected with the optical fiber-coaxial cable conversion device and the power divider 2, the power divider 2 is connected with the second passive device 12 and each third passive device 13, the second passive device 12 is connected with the first router 31, the first passive device 11 and the second passive device 12 are used for suppressing the LAN signal, and the third passive device 13 is used for suppressing L AN signals and the CATV signal.

the power divider 2 is used for receiving a cable television signal, L AN signal and a WAN signal which are input by coaxial cables between a garage and a house, wherein the cable television signal is directly distributed to a second passive device 12 and a third passive device 13 of a living room and each room to be directly output, the LAN signal and the WAN signal are output to the second passive device 12 of the living room through the coaxial cables, and the LAN signal and the WAN signal are received from the first router 31 to be output to the third passive device 13 of other rooms through the coaxial cables between the rooms.

the first router 31 is connected with the power divider 2 through a coaxial cable and outputs AN L AN signal to the power divider 2 through the coaxial cable, so that the power divider 2 inputs the L AN signal to the third passive device 13 of the room through the coaxial cable, and the third passive device 13 is used for receiving the L AN signal from the power divider 2 and sending the L AN signal to the corresponding second router 32 so that the user can surf the network in the room.

referring to fig. 3-4, the second passive device and the third passive device mainly suppress unwanted signals and only allow wanted signals to pass through, and simultaneously perform a combining or splitting function, and the single cost is low, which is very suitable for the reconstruction of the existing house internet system.

referring to fig. 5 (abscissa unit MHz), specifically, the bandwidth (300MHz) of the L AN signal is greater than or equal to the bandwidth (200MHz) of the WAN signal, for frequency redistribution, the frequency of the signal output by the fiber-coaxial cable conversion device and the first router may be changed by software programming, and the passive device suppresses the unwanted signal and only allows the useful signal to pass through, thereby achieving the purpose of frequency distribution.

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims

1. A coaxial cable-based internet access system including a fiber-to-coaxial cable conversion device for converting an optical signal into a WAN signal, the internet access system further comprising: a first passive device, a power splitter, a second passive device, a first router, at least one third passive device, and a second router connected to each third passive device,

2. the networking system of claim 1, wherein the bandwidth of the L AN signal is greater than or equal to the bandwidth of the WAN signal.

3. The networking system of claim 1, wherein the first passive device is configured to merge the cable television signal and the WAN signal into the power splitter.

4. The networking system of claim 1, wherein the second passive device is configured to send the WAN signals to the first router.

5. the networking system of claim 4, wherein the first router is configured to convert the WAN signal into the LAN signal and output the LAN signal to the power divider.

6. the networking system of claim 5, wherein the third passive device is configured to receive the L AN signal from the power splitter and send the L AN signal to the corresponding second router.

7. the networking system of any of claims 1-6, wherein the CATV signal, the WAN signal, and the L AN signal are transmitted via coaxial cables.