CN202634465U - Signal fusion access equipment of integrated passive optical network unit - Google Patents

Abstract

The utility model relates to signal fusion access equipment of an integrated passive optical network unit. The signal fusion access equipment comprises an optical transceiver, an EPON (Ethernet Passive Optical Network) unit, a wireless AP (Access Point), a frequency mixer and a radio frequency distributor; the output end of the optical transceiver is connected with the input end of the EPON unit; the output end of the EPON unit is connected with the input end of the wireless AP; the output end of the wireless AP is connected with one input end of the frequency mixer; the other input end of the frequency mixer is connected with a radio frequency signal interface; the output end of the frequency mixer is connected with the radio frequency distributor; and a plurality of output interfaces are arranged on the radio frequency distributor. With the adoption of the signal fusion access equipment provided by the utility model, radio frequency signals and WIFI (Wireless Fidelity) signals, which are transmitted through coaxial cables, are synchronously transmitted to a terminal through the frequency mixer and the distributor, so that the problem that the signals are difficult to pass a wall in a WIFI manner can be solved.

Description

The signal fused access device of a kind of integrating passive optical network unit

Technical field

The utility model relates to the passive optical network of a kind of wire radio signal and wireless signal fusion, mainly is a kind of radiofrequency signal of coaxial wire transmission and the passive optical network equipment of wireless WIFI signal Synchronization transmission.

Background technology

Ethernet passive optical network (hereinafter to be referred as EPON) is a kind of novel Optical Access Network technology, and it adopts point-to-multipoint configuration, and the passive fiber transmission provides multiple business on Ethernet.It has combined the advantage of EPON (hereinafter to be referred as PON) technology and ethernet technology.Have low cost, high broadband, autgmentability is strong, and is compatible with existing Ethernet, and characteristics such as convenient management.

At present, cable TV network all is to be main with coaxial cable, and has built so for many years.Very big available part is arranged.At present China Broadcast & Television is to lead the integration of three networks with the coaxial cable to the transformation at family all the time.After Fiber to the home, also not concrete unified above the user terminal, also be the follow-up developments deleterious impact of network.This just is badly in need of the connectivity problem at an equipment each terminal, back of solving that Fiber to the home.

WIFI be a kind of with PC, handheld device terminals such as (like PDA, mobile phones) with the interconnected technology of wireless mode.The common understanding of WIFI is exactly IEEE802.11 agreement (being actually different certainly); Be by " the compatible alliance of wireless ethernet " (Wireless Ethernet Compatibility Alliance by name; WECA) the industry term that tissue is issued; It is a kind of short range wireless transmission technology, can in hundreds of feet scopes, support the radio signal that the Internet inserts.Along with the development of technology, and the appearance of standards such as IEEE 802.11a and IEEE 802.11g, IEEE 802.11 these standards have been collectively referred to as WIFI now.It can help user capture Email, Web and streaming video.It provides wireless broadband internet visit for the user.Simultaneously, it also is quick, the fast way of family, office or online during the journey.

The wireless network that the WIFI wireless network is made up of AP (Access Point) and wireless network card.In open zone, communication distance can reach 305 meters; In the closure zone, communication distance is 76 meters to 122 meters, and convenient and existing wired ethernet is integrated, and the cost of networking is lower.The coverage of existing WIFI at home more and more widely, luxurious hotel, the mansion district, all there is the WIFI interface in the zone of airport and coffee shop and so on.But because the WIFI self-technique, there is the problem of difficulty through walls in WIFI.Because the barrier of area of space, make the WIFI signal weaker in the plurality of applications occasion, coverage diminishes.

Summary of the invention

The utility model provides the signal fused access device of a kind of integrating passive optical network unit to the deficiency of prior art.

The signal fused access device of a kind of integrating passive optical network unit comprises optical transceiver, EPON unit, wireless aps, frequency mixer and radio frequency distributor.

The output of optical transceiver is connected with the input of EPON unit; The output of EPON unit is connected with the input of wireless aps; The output of wireless aps is connected with an input of frequency mixer; Another input of frequency mixer connects the radiofrequency signal interface, and the output of frequency mixer is connected with the radio frequency distributor, has a plurality of output interfaces on the radio frequency distributor.

Described EPON unit also comprises RJ-45 network interface and telephone line interface.

The beneficial effect of the utility model is: the radiofrequency signal through realizing the coaxial cable transmission and WIFI signal through frequency mixer and distributor synchronous transmission to the terminal, solution WIFI difficult problem through walls.Can the WIFI signal be transferred to each room through existing cable tv coax line, be reduced into wireless signal through terminal equipment then, send into user's application apparatus, the family that reaches the WIFI network covers purpose.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the application sketch map of local side apparatus in network that wire radio signal and wireless WIFI signal fused insert.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.

As shown in Figure 1, the utility model solves after to be that Fiber to the home arrive, again the problem from optical fiber to the terminal equipment; A kind of radiofrequency signal of coaxial wire transmission and the passive optical network local side apparatus of wireless WIFI signal Synchronization transmission are provided; Comprise optical transceiver, EPON unit, wireless aps; A frequency mixer, a radio frequency distributor; Wherein, optical transceiver converts light signal into the signal of telecommunication, is light signal with electrical signal conversion perhaps.The EPON unit is to convert the PON frame into ethernet frame, perhaps converts ethernet frame into PON.The EPON unit forms ethernet frame, and the identification of the level through the signal of telecommunication converts light signal to, forms the PON frame, transfers to optical transceiver and sends.Wireless aps is responsible for converting ethernet frame into the WIFI signal.Frequency mixer is that WIFI signal and radiofrequency signal are transferred to the terminal through the radio frequency distributor again after mix.

PON frame in the utility model is meant the Frame of the light carrier communication of in environment of passive optical network, transmitting.

EPON unit further in the utility model comprises RJ-45 network interface and telephone line interface.

Wireless aps also can connect the wireless wireless signal that sends separately in the utility model.

After frequency mixer mixed the CATV signal of low frequency and senior WIFI signal in the utility model, exporting an existing low frequency CATV signal also had high frequency WIFI signal and mixed signal.

The interface quantity of the radio frequency distributor of the utility model is unqualified, can expand on demand.

What wireless aps partly adopted in the utility model is the AR9331 chip that Atheros Atheios company produces, built-in AP and wireless transceiver; The DPX-121LFA that Dandong Hua Xun company that frequency mixer adopts produces.The radio frequency distributor is customized by specialized factory, the main PMC PSA63XX series processors that adopts of EPON part.

The course of work of the utility model:

Step 1: the wire radio signal of coaxial wire transmission is transferred to frequency mixer through rf input interface RF IN.

Step 2: optical transceiver converts light signal into the signal of telecommunication, is transferred to the EPON unit.

Step 3:EPON unit converts the PON frame into ethernet frame, is transferred to the wireless aps unit.

Step 4: the wireless aps unit converts ethernet frame into the WIFI signal, and wireless aps is launched the WIFI signal through antenna then.

Step 5: the WIFI signal of wireless aps is transferred to frequency mixer through connecting line simultaneously; Frequency mixer the inside wire radio signal and WIFI signal simultaneously like this.

Step 6: the mixed signal of frequency mixer the inside is transferred to distributor then.

Step 7: the effect of distributor is frequency mixer to be transmitted the mixed signal of coming in separate into a plurality of radiofrequency signals, exports from interface RF OUT respectively.

The function of distributor is to export signal from a plurality of output interfaces, but according to the actual signal attenuation degree, it is optimum separation method that distributor is told four output interfaces.

Through said process, make existing cable tv coax line that WIFI is transferred to each room, be reduced into wireless signal (as shown in Figure 2) through terminal equipment then, send into user's application apparatus, the family that reaches the WIFI network covers the signal maximization.

The main performance index of this equipment such as following table:

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Claims (2)

1. the signal fused access device of an integrating passive optical network unit comprises optical transceiver, EPON unit, wireless aps, frequency mixer and radio frequency distributor, it is characterized in that:

The output of optical transceiver is connected with the input of EPON unit; The output of EPON unit is connected with the input of wireless aps; The output of wireless aps is connected with an input of frequency mixer; Another input of frequency mixer connects the radiofrequency signal interface, and the output of frequency mixer is connected with the radio frequency distributor, has a plurality of output interfaces on the radio frequency distributor.

2. the signal fused access device of a kind of integrating passive optical network according to claim 1 unit is characterized in that: described EPON unit also comprises RJ-45 network interface and telephone line interface.

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