US 9,313,034 B2Granted

Method and system for power-fail protection of communication equipment, and power controller

AssigneeZte Corporation

InventorDeming Tao

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Abstract

The invention discloses a method and a system for power-fail protection of communication equipments, and a power controller. The method is applied to a system comprising a power controller, a power detection unit, and an energy storage conversion unit. The method includes: a power controller acquires the information of one or more circuit boards requiring protection in an equipment; when the power controller determines the equipment is currently in power-fail status, the power controller indicates to gate the switches between an energy storage conversion unit and one or more circuit boards, and provides the pre-stored electric energy to the one or more circuit boards. According to the technical solution provided by the present invention, the problems in the related art that the power consumption is large, the cost is high and it is difficult to implement when the power-fail protection is performed for all circuit boards of a frame are solved, so the power consumption is effectively reduced and the cost is saved.

Claims9

Dependent claims

A method for power-fail protection of communication equipment when power to the communication equipment is interrupted or oscillates, which is applied to a system comprising a power controller, a power detection unit, and an energy storage conversion unit configured to store electric power for later generating independent energy storage voltage, and the method comprising:

acquiring, by the power controller, information of at least one of a plurality of circuit boards in the communication equipment requiring protection;
indicating, by the power controller, when the power controller determines the communication equipment is currently in power-fail status, to gate switches between the energy storage conversion unit and the plurality of circuit boards, and providing independent energy storage voltage to the at least one circuit board;
wherein determining, by the power controller, the communication equipment is currently in power-fail status in the following manner:
receiving, by the power controller, a power status signal from the power detection unit, wherein the power status signal indicates that the communication equipment is currently in power-fail status;
wherein the step of receiving, by the power controller, the power status signal from the power detection unit comprises:
receiving, by the power controller, the power status signal from the power detection unit, wherein the power status signal carries the information, which is detected by the power detection unit, of current input voltage being lower than a preset threshold when the power to the communication equipment is interrupted or oscillates;
determining, by the power controller, the communication equipment is currently in power-fail status according to the power status signal.

4 more elements

A system for power-fail protection of communication equipment when power to the communication equipment is interrupted or oscillates, the system comprising:

a circuit to carry electric power from a power supply to communication equipment including a plurality of circuit boards;
an energy storage conversion unit connected to the circuit, and configured to store electric power from the power supply for later generating independent energy storage voltage;
an energy storage gating unit connected to the energy storage conversion unit, to a power controller, and to the plurality of circuit boards, and including switches between the energy storage conversion unit and the plurality of circuit boards;
a power controller, configured to acquire information about at least one circuit board of a plurality of circuit boards that requires protection in the communication equipment, and signal the energy storage gating unit to indicate to gate switches and provide independent energy storage voltage to the at least one circuit board that requires protection when the power controller determines that the communication equipment is currently in the power-fail status;
and
a power detection unit, configured to detect whether the voltage at the input end of the communication equipment is lower than a preset threshold and send a power status signal to the power controller.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/393,406Filed 2 Sep 2009
Published: US 2012/0161515 A128 Jun 2012
Granted: 12 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04L 12/12
Details: arrangements for remote connection or disconnection of substations or of equipment thereof
G06F 1/28
Power supply means, e.g. regulation thereof: supervision thereof, e.g. detecting power-supply failure by out of limits supervision
H02J 9/061
With automatic change-over , e.g. UPS systems: for DC powered loads
H04L 43/0817
By checking availability: by checking functioning