CN201830467U - Large-power AP (access point) - Google Patents

Abstract

The utility model provides a large-power AP (access point), and relates to the technical field of wireless local area networks, in particular to the aspect of power amplification of AP used on the wireless local area network. The AP comprises a shell and an AP body, wherein the AP body is arranged in the shell. The AP is characterized in that the interior of the shell comprises a radio-frequency power amplifier and a POE (power over Ethernet) receiving power switching board which is respectively connected with the AP body and the radio-frequency power amplifier so as to supply power to the AP body and the radio-frequency power amplifier; and the radio-frequency power amplifier is also connected with an AP body by a signal and carries out amplification on a radio-frequency signal of the AP body. Due to adoption of the large-power AP, the covering problem of large area and complex environment is effectively solved, simultaneously, the covering range is enlarged, so that the frequency multiplexing distance is increased, and the same frequency interference is effectively reduced. The purposes of simplifying and saving components of the wireless local area network are achieved.

Description

A kind of high-power AP

Technical field

The utility model relates to the wlan technologies field, is specifically related to the online AP power amplification aspect of using of wireless local.

Background technology

Current WLAN (Wireless Local Area Networks, WLAN) terminal overlay device is following small-power AP (the Access Point of 100mW substantially, WAP (wireless access point)), its main cause is that the research and development original intention and the application before thereof of WLAN technology mainly is to be applied as the master with family or zonule, solves last several meters transfer of data.But, extensively referred in the various large-scale covering scene that the larger data transmission demand arranged at present because of advanced person, the networking of its technology are convenient flexibly, the cheap popularity rate height of terminal equipment.Just because of this, each common carrier begins with WLAN at the transfer of data Operation Network of setting up a special use in recent years.And press the terminal small-power AP of original wlan network Demand Design, far can not satisfy its new application demand, and in many application scenarioss, restrict its use.Its restriction shows the following aspects: 1, because of its power output below 100mW, has only 30-50 rice in indoor spacious zone, outdoor also have only more than 100 meter, when the application scenarios area is big, just need lay more equipment, therefore upwards relevant step by step corollary equipment all will roll up, cause the network construction cost height, the difficulty of arranging net increases, lose its cheaply, advantage easily.2, the frequency resource anxiety of existing wlan system, the same area three frequencies only can use simultaneously, and is big as circumstance complication or overlay area when small-power covers, and will cause the equipment of laying more, and multiplex distance is not enough, and co-channel interference is serious.The frequency planning difficulty can't be used on a large scale.

Summary of the invention

In sum, it is little that the purpose of this utility model is to solve existing AP power, the problem that can't satisfy the demands, a kind of high-power AP that on the basis of another utility model " POE during high-power AP is integrated is subjected to electric power source conversion plate " that the applicant applies for simultaneously, is proposed.

For solving the technical problem that the utility model proposed, the technical scheme that adopts is: 1, a kind of high-power AP, comprise: housing and AP body, described AP body is located in the housing, it is characterized in that: also include in the described housing: radio-frequency (RF) power amplification and POE are subjected to electric power source conversion plate, described POE is connected with radio-frequency (RF) power amplification with the AP body respectively by electric power source conversion plate, is AP body and radio-frequency (RF) power amplification power supply; Described radio-frequency (RF) power amplification also is connected with AP body signal, and the radiofrequency signal of AP body is amplified.

Described radio-frequency (RF) power amplification is the linear radio-frequency power amplifier.

Described POE is subjected to electric power source conversion plate to include a Data Input Interface that is connected with Ethernet and a network signal link that is connected with the AP body.

It is the RJ45 interface that described POE is subjected to the Data Input Interface of electric power source conversion plate.

The beneficial effects of the utility model are: the design adopts the linear radio-frequency power amplifier, reach under the situation of not destroying existing low power AP body bulk shape in the basic function that does not change existing low power AP body, only the radio frequency output of existing low power AP body is amplified, and promote its up receiving sensitivity, to increase coverage.Linear radio-frequency power amplifier and AP body all are subjected to electric power source conversion plate that power supply support is provided by POE, POE is subjected to electric power source conversion plate at first to obtain dc power supply and network signal from netting twine, again dc power supply is divided into different two-way, one the tunnel gives 100mW following AP body power supply, and high linear radio-frequency (RF) power amplification power supply is given on another road.In power supply, POE is subjected to electric power source conversion plate simultaneously it to be received signal from netting twine and offers the AP body after treatment, also the AP body need be able to be uploaded to the signal on the netting twine, handles earlier and uploads.The technical solution of the utility model transformation is simple, has solved the covering problem of big zone and complex environment effectively, because the increase of coverage makes frequency reuse distance become big, has effectively reduced co-channel interference simultaneously.Assembly to WLAN (wireless local area network) has played the purpose of simplifying and saving.

Description of drawings

Fig. 1 is a perspective view of the present utility model;

Fig. 2 is a structure principle chart of the present utility model;

Fig. 3 is subjected to the circuit theory diagrams of electric power source conversion plate for the POE that the utility model adopted.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment structure of the present utility model is further described:

Shown in seeing figures.1.and.2, the utility model is formed by electric power source conversion plate and linear radio-frequency power amplifier by the AP body, the POE that are located in the housing 1.So-called AP body is existing small-power AP.POE is connected with radio-frequency (RF) power amplification with the AP body respectively by electric power source conversion plate; Radio-frequency (RF) power amplification is connected with AP body signal.POE is subjected to electric power source conversion plate to be provided with the RJ45 interface 2 that a convenience is connected with Ethernet, it is with under the prerequisite that has Power over Ethernet now that POE is subjected to the effect of electric power source conversion plate, from the netting twine of the direct current that is loaded with 48V and network signal, extract the voltage output end of two groups of different magnitudes of voltage, the power input connection that is connected with radio-frequency (RF) power amplification of AP body respectively of two groups of voltage output ends is for AP body and radio-frequency (RF) power amplification provide work required power supply.POE is subjected to electric power source conversion plate to extract network signal from Ethernet to carry out signal by netting twine and AP body and be connected, make RJ45 interface 2 set up normal communication and connect.Linear radio-frequency power amplifier purpose is the radio frequency output signal of AP body is amplified, and the linear radio-frequency power amplifier is connected with the computer wireless that includes wireless aps by the antenna on the antennal interface 3.

Shown in Fig. 3, the POE that the utility model adopted is subjected to electric power source conversion plate to comprise the data interconnecting module, the power supply extraction module, protocol module and power source conversion output module, the data interconnecting module is used to be connected between Data Input Interface and the data output interface, Data Input Interface that is to say the RJ45 interface 2 shown in Fig. 1, the power supply extraction module is connected the power output interface of data interconnecting module, power supply extraction module out-put supply is to protocol module and power source conversion output module, described power source conversion output module comprises the AC-DC unit, oscillating unit, switch element, voltage transformation unit and rectification unit, oscillating unit provides oscillator signal to the AC-DC unit, AC-DC unit output control signal is given switch element, power supply extraction module out-put supply converts the Switching Power Supply signal to through switch element, exports after the process rectification unit is rectified into direct current again after the Switching Power Supply signal voltage transformation unit transformation.In the present embodiment, the data interconnecting module comprises network transformer T1, resistance R 1, resistance R 2, capacitor C 1, capacitor C 2 and capacitor C Y1, wherein, network transformer T1 is connected between input network interface (being network interface) J1 and the output network interface J2, input network interface J1 is the external data/power interface of equipment, output network interface J2 is the data/power interface of power supply to the little AP of 100mW, resistance R 1 is connected in series with capacitor C 1, the resistance R 1 and capacitor C 1 one ends of series connection are connected on the centre cap of network transformer T1, the other end is connected with capacitor C Y1, resistance R 2 is connected in series with capacitor C 2, the resistance R 2 and capacitor C 2 one ends of series connection are connected on another centre cap of network transformer T1, the other end also is connected with capacitor C Y1, the capacitor C Y1 other end is connected to signal ground, and the data interconnecting module is used for the data acceptance/transmission of realization equipment from the ethernet line.In the present embodiment, the power supply extraction module comprises rectifier bridge BD1 and rectifier bridge BD2, the power end of input network interface J1 is connected to two inputs of rectifier bridge BD1, two centre taps of network transformer T1 are connected to two inputs of rectifier bridge BD2, the output of rectifier bridge BD1 and rectifier bridge BD2 links together, out-put supply is given output network interface J2 on the one hand, out-put supply is to protocol module on the other hand, the agreement that realizes power receiving equipment and network power supply equipment by protocol module is connected (802.3af agreement), in the present embodiment, protocol module mainly adopts Power over Ethernet type device controller U1, Power over Ethernet type device controller U1 cooperates peripheral electric capacity, devices such as resistance are formed protocol module, in the present embodiment, the model that Power over Ethernet type device controller U1 selects for use is TPS2375, during concrete enforcement, also can select for use other identical chips of function to replace.The protocol module out-put supply is to the power source conversion output module, in the present embodiment, the power source conversion output module comprises AC-DC unit, oscillating unit, switch element, voltage transformation unit and rectification unit, wherein, the AC-DC unit mainly adopts AC-DC chip for driving U2 to cooperate its peripheral capacitance resistance to form a Switching Power Supply, converts direct current to alternating current, in the present embodiment, the model that AC-DC chip for driving U2 selects for use is GR8876, when specifically implementing, also can select for use other modules of identical function to replace.In the present embodiment, transformer T2B, diode D2, capacitor C 8 and resistance R 13 are formed oscillating unit and oscillator signal are provided for AC-DC chip for driving U2, field effect transistor Q1 is a switch element, conducting and the disconnection of AC-DC chip for driving U2 control field effect transistor Q1, thereby realize direct current is converted to the purpose of alternating current, the alternating current that converts to through field effect transistor Q1, after the voltage transformation unit transformation, input to rectification unit and carry out rectification, in the present embodiment, voltage transformation unit adopts transformer T2A, rectification unit adopts diode connected in parallel D4 and diode D5 and commutation capacitor etc., alternating current is converted to+6.3V or+output of the low-voltage DC of 5V, give the power supply of AP body and radio-frequency (RF) power amplification.In the present embodiment, also be connected with the feedback unit that photoelectrical coupler U3 constitutes on the rectification unit output, output signal is fed back to AC-DC chip for driving U2.Also be connected with interface J7 on the rectification unit output, interface J7 is used to connect light-emitting diode, is used to refer to the operate as normal of power supply.

Claims (4)

1. high-power AP, comprise: housing and AP body, described AP body is located in the housing, it is characterized in that: also include in the described housing: radio-frequency (RF) power amplification and POE are subjected to electric power source conversion plate, described POE is connected with radio-frequency (RF) power amplification with the AP body respectively by electric power source conversion plate, is AP body and radio-frequency (RF) power amplification power supply; Described radio-frequency (RF) power amplification also is connected with AP body signal, and the radiofrequency signal of AP body is amplified.

2. a kind of high-power AP according to claim 1 is characterized in that: described radio-frequency (RF) power amplification is the linear radio-frequency power amplifier.

3. a kind of high-power AP according to claim 1 is characterized in that: described POE is subjected to electric power source conversion plate to include a Data Input Interface that is connected with Ethernet and a network signal link that is connected with the AP body.

4. a kind of high-power AP according to claim 3 is characterized in that: it is the RJ45 interface that described POE is subjected to the Data Input Interface of electric power source conversion plate.

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