CN2829256Y

CN2829256Y - Wired TV. wireless local network integrated distributer

Info

Publication number: CN2829256Y
Application number: CN 200520035138
Authority: CN
Inventors: 王勇; 肖军
Original assignee: CHENGDU AIS BROADBAND TECHNOLOGY Co Ltd
Current assignee: CHENGDU AIS BROADBAND TECHNOLOGY Co Ltd
Priority date: 2005-08-16
Filing date: 2005-08-16
Publication date: 2006-10-18
Anticipated expiration: 2015-08-16

Abstract

The utility model discloses a CATV WLAN centralized distributer. The utility model comprises a wireless AP, a CATV centralized distributer and a WLAN user box, wherein the CATV centralized distributer is provided with a WLAN signal connector 1, a CATV coaxial cable input connector 2, a plurality of CATV coaxial cable output connectors 3, a mixing circuit and a centralized distribution circuit, and the mixing circuit and the centralized distribution circuit are arranged in the CATV centralized distributer; the WLAN user box is provided with a CATV input connector, a CATV output connector and a WLAN antenna. After 2.5GHz signals of a WLAN and 860MHz signals of a CATV are mixed in a unit, the signals are distributed by using the centralized distributor, and the signals are transmitted to users by existing CATV coaxial cables in a Point-to-Point mode, so that the diversity transmission of WLAN signals can be realized which means transmitting antennae are distributed to families. The utility model extends the coverage area of the wireless AP, and has the advantages of broad frequency band of the WLAN signals, low cost and the convenience and the flexibility of network construction.

Description

A kind of cable TV WLAN (wireless local area network) is concentrated distributor

Technical field

The utility model relates to cable TV transmission technology, and particularly a kind of cable TV WLAN (wireless local area network) of transmitting cable TV signal and WLAN wireless network signal is simultaneously concentrated distributor.

Background technology

Computer network has been obtained alarming development in China, and a kind of fashion is not only in family online, a kind of especially trend.In order to reduce the cost of computer network engineering wiring, people are exploring method and the technology of utilizing transmission cable television system transmission computer network signal, and acquired many important achievements, but be to transmit the wired lan signal to user side mostly, the user generally connects subscriber computer by the RJ-45 interface.If subscriber computer many (2 or more than) and be distributed in different rooms, subscriber household inside also needs wiring so, this is very inconvenient concerning fitting up the room, wireless network can address this problem, but WLAN is the open circuit emission, because stopping of building, an AP is placed in the unit, far-end computer just can not receive signal, therefore the vast network user need a kind ofly can overcome the technology and the product of the signal propagation distance of wireless aps simultaneously again with convenience, the flexibility of wireless mode networking to satisfy its networking.

Summary of the invention

The purpose of this utility model promptly is to overcome the shortcoming of prior art, it is indoor that the antenna of wireless aps is inserted the user, this just needs the feeder line of AP to user side, the independent wiring cost is high and be difficult to carry out, so just utilize existing C ATV cable to come the signal of transmitting WLAN, the wiring of saving has solved the stop problem of building to the AP signal again.

The purpose of this utility model is achieved through the following technical solutions: a kind of cable TV WLAN (wireless local area network) is concentrated distributor, comprise a wireless aps, comprise that also a cable TV concentrates distributor, a WLAN subscriber box, cable TV concentrates distributor to be provided with a WLAN connector, a CATV coaxial cable input connector, some CATV coaxial cable output connectors, and a built-in hybrid circuit and a concentrated distributor circuit, outside AP concentrates distributor to be connected by WLAN connector and cable TV, outside CATV signal enters cable TV by CATV coaxial cable input connector and concentrates distributor, hybrid circuit is connected with CATV coaxial cable input connector with the WLAN connector, and connect with concentrated distributor circuit, concentrate distributor circuit to be connected with CATV coaxial cable output connector, CATV coaxial cable output connector is connected with the WLAN subscriber box by the CATV coaxial cable, the WLAN subscriber box is provided with a CATV input connector, a CATV output connector, a WLAN antenna, the external CATV cable of CATV input connector, CATV output connector is connected with television set, and the WLAN antenna is connected with subscriber computer by wireless mode.

It is two-way that the WLAN signal is concentrated the transmission between distributor and the WLAN subscriber box at AP, cable TV.

The frequency range of the WLAN signal of AP output is 2.4GHz～2.5GHz, and the frequency range of CATV cable TV signal is 5MHz～860MHz.

The utlity model has following advantage:

(1) the WLAN signal band is wide, is 2.4GHz～2.5GHz;

(2) satisfy the every index request of CATV in 5MHz～860MHz;

(3) satisfy user radio networking demand, cost is low, and is flexible.

Description of drawings

Fig. 1 is a system configuration block diagram of the present utility model

Fig. 2 cable TV is concentrated the structure chart of distributor

The structure chart of Fig. 3 WLAN subscriber box

Fig. 4 cable TV is concentrated the circuit diagram of distributor

Embodiment

The utility model will be further described below in conjunction with accompanying drawing:

As Fig. 1, Fig. 2 and Fig. 3, a kind of cable TV WLAN (wireless local area network) is concentrated distributor, comprise a wireless aps, it comprises that also a cable TV concentrates distributor, a WLAN subscriber box, cable TV concentrates distributor to be provided with a WLAN connector 1, a CATV coaxial cable input connector 2, some CATV coaxial cable output connectors 3, and a built-in hybrid circuit and a concentrated distributor circuit, outside AP concentrates distributor to be connected by WLAN connector 1 and cable TV, outside CATV signal enters cable TV by CATV coaxial cable input connector 2 and concentrates distributor, hybrid circuit is connected with CATV coaxial cable input connector 2 with WLAN connector 1, and connect with concentrated distributor circuit, concentrate distributor circuit to be connected with CATV coaxial cable output connector 3, CATV coaxial cable output connector 3 is connected with the WLAN subscriber box by the CATV coaxial cable, the WLAN subscriber box is provided with a CATV input connector 4, a CATV output connector 5, a WLAN antenna 6, CATV input connector 4 external CATV cables, CATV output connector 5 is connected with television set, and WLAN antenna 6 is connected with subscriber computer by wireless mode.

Operation principle: cable TV concentrates distributor to import WLAN radiofrequency signal and the CATV cable television video signal that connector 2 is imported 5MHz～2.5GHZ from WLAN connector 1 and CATV coaxial cable respectively, hybrid circuit mixes the WLAN radiofrequency signal of 5MHz～2.5GHZ with 5MHz～860MHz CATV cable television video, again through concentrating distributor circuit that mixed signal equalization is assigned to each CATV coaxial cable output connector 3, after the CATV cable tv coax is transferred to user side with mixed signal, the WLAN subscriber box of user side is isolated CATV cable TV signal and WLAN radiofrequency signal, send into television set and WLAN wireless antenna respectively, computer contact communication in WLAN wireless antenna and each room, thus common cable transmission and the flexible wireless network of realizing Computer signal and CATV TV signal insert.

Fig. 4 is the circuit theory diagrams that cable TV is concentrated distributor.Among the figure, the low pass filter group of CATV input signal through forming by L1, C1, L2, C2, L3, after superposeing after the high pass filter group that the WLAN signal passes through to be made up of C3, L4 and C4, L5, be input to coupling inductance T5 together, after conversion is coupled step by step via T2, T3, T11 and T4, T6, T7 and T8, T10, T13 transformer group again, through output transformer T1, T12, T9, T14 output WLAN and CATV mixed signal.

The computer communication is two-way, but the equal transmitted in both directions of filtering shown in Figure 4, coupling circuit has guaranteed that the WLAN signal concentrates the transmitted in both directions between distributor and the WLAN subscriber box at AP, cable TV.

By above analysis as can be known, the utility model is actually the AP antenna is extended to subscriber household, middle hybrid circuit, concentrate distributor circuit can be equivalent to feeder line between AP and the antenna on the function, thus the collision detection between the computer and control nature by AP and each computer according to the collaborative solution of IEEE 802.11b standard.

Claims

1, a kind of cable TV WLAN (wireless local area network) is concentrated distributor, comprise a wireless aps, it is characterized in that: it comprises that also a cable TV concentrates distributor, a WLAN subscriber box, cable TV concentrates distributor to be provided with a WLAN connector (1), a CATV coaxial cable input connector (2), some CATV coaxial cable output connectors (3), and a built-in hybrid circuit and a concentrated distributor circuit, outside AP concentrates distributor to be connected by WLAN connector (1) and cable TV, outside CATV signal enters cable TV by CATV coaxial cable input connector (2) and concentrates distributor, hybrid circuit is connected with CATV coaxial cable input connector (2) with WLAN connector (1), and connect with concentrated distributor circuit, concentrate distributor circuit to be connected with CATV coaxial cable output connector (3), CATV coaxial cable output connector (3) is connected with the WLAN subscriber box by the CATV coaxial cable; The WLAN subscriber box is provided with a CATV input connector (4), a CATV exports connector (5), a WLAN antenna (6), the external CATV cable of CATV input connector (4), CATV output connector (5) is connected with television set, and WLAN antenna (6) is connected with subscriber computer by wireless mode.

2, a kind of cable TV WLAN (wireless local area network) according to claim 1 is concentrated distributor, it is characterized in that: it is two-way that the WLAN signal is concentrated the transmission between distributor and the WLAN subscriber box at AP, cable TV.

3, a kind of cable TV WLAN (wireless local area network) according to claim 1 is concentrated distributor, it is characterized in that: the frequency range of the WLAN signal of AP output is 2.4GHz～2.5GHz, and the frequency range of CATV cable TV signal is 5MHz～860MHz.