Remote constant-voltage feeding method and system with waking function

Abstract

The invention discloses a remote constant-voltage feeding method and a remote constant-voltage feeding system with waking function in a wired mode. An intelligent power supply module in local side power supply equipment generates feed voltage from a local side power supply, and the feed voltage is fed into a terminal power supply module through a feeder line. The system is characterized in that: the intelligent power supply module can continuously provide constant-voltage feed for the terminal power supply module and change the polarity of the feed voltage according to a determined rule when the terminal power supply module in a sleeping mode needs to be woken remotely; and a voltage polarity monitoring module in the terminal power supply module determines whether to wake the terminal power supply module in the sleeping mode to enter a normal power supply state by monitoring the polarity of the voltage fed on a local side. The method and the system have the advantages that: feeding isflexible, feeding power is high, energy efficiency is high, a feeding circuit and a waking method are simple, and easy to realize, and the requirement of a withstand voltage process is reduced.

Description

technical field [0001] The invention belongs to an intelligent remote constant voltage feeding method and system, in particular to a remote constant voltage feeding method and system with a wake-up function. Background technique [0002] Ordinary wired telephone system remotely feeds power to terminal equipment through twisted pair wires. In fact, most telecommunication terminal equipments require the telecommunication organization to obtain the power required for normal operation from the central office through the twisted pair. The device that provides power at the central office is called the power supply device, and the device that receives remote power feed at the terminal is called the power receiving device. Feeding power from the central office can improve the availability of the telecommunication system, which is the design goal of the telecommunication remote equipment. [0003] The realization block diagram of the remote power supply of ordinary telephone system...

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Problems solved by technology

[0015] It can be seen that among the various remote constant voltage power supply technologies proposed at present, there is a lack of a clear and clear method to realize the wake-up mechanism of the terminal power module in the dormant state that needs remote power supply. In the power feeding system, it is hoped that there will be a more flexible wake-up mechanism based on the realization of remote power supply, so that the terminal power module that needs remote power supply in the sleep state can be easily woken up to enter the normal power supply state at any time, so as to provide Household electrical equipment or other public electrical equipment provides the required working voltage

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