Power supply and data transmission device of wireless local area network access point

Abstract

The invention discloses a power supply and data transmission device of a wireless local area network access point, which comprises a data branching module, a digital signal modulator-demodulator, a power supply branching module, a power supply module and a POE (Power Over Ethernet) module, wherein the data branching module is used for dividing an original access data transmission cable of a first data transmission line accessing into a wireless communication base station and a second data transmission line accessing into a WLAN AP (Wireless Local Area Network Access Point); the digital signal modulator-demodulator is used for modulating and demodulating an analog or digital signal in the second data transmission line to an Ethernet data signal; the power supply branching module is used for dividing the original power supply cables of the wireless communication base station into a first power line accessing into the wireless communication base station and a second power line supplying power for the WLAN AP; the power supply module is used for supplying power for the digital signal modulator-demodulator and the POE module through an electrical signal of the second power line; and the POE module is used for synthesizing the electrical signal provided by the power supply module and the Ethernet data signal to obtain a composite signal input to the WLAN AP. The power supply and data transmission device of the wireless local area network access point provides data transmission and power supply resources for the WLAN AP by using the traditional supporting facilities of the wireless communication base station, thus the cost and the construction difficulty are reduced.

Description

technical field [0001] The present invention relates to communication technology, in particular to a power supply and data transmission device for a Wireless Local Area Network Access Point (WLAN AP for short). Background technique [0002] When WLAN APs are installed outdoors, it is necessary to solve the problems of power supply and data return on the wired side. In the prior art, a long-distance Ethernet transmission cable, that is, a network cable, is newly laid at an outdoor installation site. Provide a data transmission channel to the WLAN AP through a local area network (hereinafter referred to as: LAN); at the same time, using the IEEE 802.11af Power over Ethernet (hereinafter referred to as: PoE) technical standard, use the LAN transmission cable to WLAN AP power supply. [0003] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] Since a long-distance Ethernet transmissio...

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Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a power supply and data transmission device for a wireless local area network access point, so as to fully utilize the data transmission and power supply resources of existing wireless communication base stations to solve the power supply and wired side data of WLAN AP. Return problems to reduce costs and construction difficulties and improve resource utilization

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