KR20170058773A - Apparatus for stabilizing a power source of optical modem - Google Patents

Apparatus for stabilizing a power source of optical modem Download PDF

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Publication number
KR20170058773A
KR20170058773A KR1020150162814A KR20150162814A KR20170058773A KR 20170058773 A KR20170058773 A KR 20170058773A KR 1020150162814 A KR1020150162814 A KR 1020150162814A KR 20150162814 A KR20150162814 A KR 20150162814A KR 20170058773 A KR20170058773 A KR 20170058773A
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KR
South Korea
Prior art keywords
power
input unit
power input
voltage
optical modem
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KR1020150162814A
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Korean (ko)
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KR101784407B1 (en
Inventor
이동석
옥기정
장대
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한전케이디엔주식회사
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Priority to KR1020150162814A priority Critical patent/KR101784407B1/en
Publication of KR20170058773A publication Critical patent/KR20170058773A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/03—Arrangements for fault recovery
    • H02J2007/004—

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Optical Communication System (AREA)

Abstract

An optical modem stabilization apparatus is disclosed. The optical modem stabilizing apparatus includes an output unit connected to the optical modem to supply power; A DC power input unit connected to a power supply line output from the power distribution automation terminal; An AC power input unit connected to a branch line of an external power source input to the power distribution automation terminal device through a control panel; An AC-DC converter for converting the AC power into a DC power; A battery power input part connected to a battery inside the control box; And a power supply unit for supplying power to the DC power input unit and outputting the power to the optical modem when the voltage of the DC power input unit is equal to or greater than a predetermined voltage, And a controller for outputting power to the optical modem when the voltage input to the AC power input unit is lower than the preset voltage by applying power to the battery power input unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an optical power stabilizer,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical modem power stabilizer, and more particularly, to an optical modem power stabilizer for managing power supplied to an optical modem, which is a communication device of a distribution automation system.

The distribution automation system consists of a terminal unit (FRTU), a communication device, and a master key, which are the subjects of data transmission / reception. Terminal equipment for distribution automation and optical modem, which is a communication device, are installed and operated as separate devices inside the control panel.

2. Description of the Related Art Currently, an optical modem as a communication device performs a data transmission / reception function using a power source supplied from a distribution automation terminal. That is, the power supplied from the external power source is supplied to the optical modem through the control panel and the terminal for distribution automation. Therefore, when an error occurs in the middle of the power supply path, the optical modem can not receive power and can not perform data communication smoothly.

In addition, when an abnormality occurs in the distribution line, the recloser automatically operates to interrupt the fault current. At this time, since the external power is also cut off during the re-disposal period, the power supplied to the optical modem is also interrupted do.

Therefore, stable and continuous power supply is required for the data communication of the optical modem to be smooth, but it is difficult under the present power supply system.

SUMMARY OF THE INVENTION The present invention is directed to an optical modem power stabilization apparatus capable of supporting continuous power supply to an optical modem through automatic switching even if an abnormality occurs in a power supply path.

According to an aspect of the present invention, there is provided an optical modem, comprising: an output unit connected to an optical modem to supply power; A DC power input unit connected to a power supply line output from the power distribution automation terminal; An AC power input unit connected to a branch line of an external power source input to the power distribution automation terminal device through a control panel; An AC-DC converter for converting the AC power into a DC power; A battery power input part connected to a battery inside the control box; And a power supply unit for supplying power to the DC power input unit and outputting the power to the optical modem when the voltage of the DC power input unit is equal to or greater than a predetermined voltage, And a control unit for outputting the power to the optical modem when the voltage input to the AC power input unit is less than the preset voltage by applying power to the battery power input unit and outputting the power to the optical modem, Thereby providing a stabilizing device.

The control unit may include a semiconductor switch for switching power input to the DC power input unit, the AC power input unit, and the battery power input unit.

The controller may cut off the power input to the battery power input unit when the voltage input to the battery power input unit is less than the over-discharge reference voltage.

The controller may cut off the power output to the optical modem until the voltage input to the DC power input unit becomes equal to or higher than the predetermined voltage when the power supplied to the battery power input unit is shut off.

The control unit applies power to the DC power input unit when the voltage input to the DC power input unit is equal to or higher than the predetermined voltage in the case of outputting the AC power to the optical modem, Can be output.

Wherein the control unit applies power to the AC power input unit when the voltage input to the AC power input unit is equal to or higher than the preset voltage when the power of the battery is applied to the optical modem, As shown in FIG.

And a light emitting unit for visually displaying a type of a power source to be applied according to the control of the control unit.

The optical modem power stabilization apparatus of the present invention can prevent the power supply from being cut off by automatic switching even if an abnormality occurs in the power supply path, thereby enabling the optical modem to perform smooth data communication.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a connection diagram of an optical modem power stabilizer according to an embodiment of the present invention;
2 is a block diagram of a configuration of an optical modem power stabilization apparatus according to an embodiment of the present invention.
3 is a circuit block diagram of an optical modem power stabilization apparatus according to an embodiment of the present invention, and Fig.
4 is a circuit configuration diagram of an optical modem power stabilization apparatus according to a temporary example of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

FIG. 1 is a connection configuration diagram of an optical modem power stabilization apparatus according to an embodiment of the present invention.

Referring to FIG. 1, an optical modem power stabilizer according to an embodiment of the present invention is connected to an external power source, a power distribution automation terminal 300, and an optical modem 400.

The optical modem power stabilizer 100 receives 24 V DC power from the power distribution automation terminal 300 and AC power of the branch line 220 V of the external power source and outputs 24 V DC power to the optical modem 400 do.

In addition, the optical modem power stabilizer 100 is connected to the battery 500 used as an emergency power source and is supplied with DC power of 24 V, and when a failure occurs on the power distribution line and power is not supplied to the optical modem 400 The power of the battery 500 is supplied to the optical modem 400.

2 is a block diagram of a configuration of an optical modem power stabilization apparatus according to an embodiment of the present invention.

2, an optical modem power stabilization apparatus according to an exemplary embodiment of the present invention includes a DC power input unit 110, an AC power input unit 121, an AC-DC conversion unit 122, a battery power input unit 130, An output unit 140, a control unit 150, and a light emitting unit 160.

First, the DC power input unit 110 is connected to a power supply line output from the power distribution automation terminal. The DC power input unit 110 receives, for example, a 24 V DC power source.

The AC power input unit 120 is connected to a branch line branched from an external power source. The AC power input unit 120 receives, for example, 220 V AC power.

The AC-DC converter 122 converts AC power input to the AC power input unit 121 into DC power for supplying the optical modem. The AC-DC converter 122 receives, for example, an AC power source of 220 V, converts it into a DC power source of 24 V, and outputs the DC power.

The battery power input unit 130 is connected to a battery in the control box and receives 24V DC power as input.

When the voltage of the direct current power input unit 110 is equal to or higher than the predetermined voltage, the controller 150 applies power to the direct current power input unit 110 and outputs the power to the optical modem. When the voltage of the direct current power input unit 110 is higher than the preset voltage The power supplied to the battery power input unit 130 is applied to the AC power input unit 121 when the voltage input to the AC power input unit 121 is less than the preset voltage And outputs it to the optical modem.

The control unit 150 compares the power input to the DC power input unit 110, the AC power input unit 121 and the battery power input unit 130 with a preset voltage and sequentially selects a power input unit that is maintained at a preset voltage or higher It is supplied by optical modem. At this time, the voltage input to the AC power input unit 121 is the comparison target of the DC voltage value converted by the AC-DC converting unit 122 with the preset voltage.

The control unit 150 may include a semiconductor switch for switching the power input to the DC power input unit 110, the AC power input unit 121, and the battery power input unit 130.

First, the controller 150 outputs the power input from the DC power input unit 110 to the optical modem. The control unit 150 periodically compares the voltage input to the DC power input unit 110 with the preset voltage and inputs the voltage to the DC power input unit 110 when the voltage input to the DC power input unit 110 is equal to or higher than the preset voltage Continuously apply power to output to the optical modem.

The control unit 150 compares the voltage input to the AC power input unit 110 with the preset voltage when the voltage input to the DC power input unit 110 is less than the preset voltage. The control unit 150 applies power to the AC power input unit 121 and outputs the power to the optical modem when the voltage input to the AC power input unit 121 is equal to or higher than the preset voltage. The voltage outputted to the optical modem at this time means the DC voltage converted by the AC-DC converter 122.

The control unit 150 compares the voltage input to the battery power input unit 130 with a preset voltage when the voltage input to the AC power input unit 121 becomes less than the preset voltage.

The control unit 150 cuts off the power input to the battery power input unit 150 when the voltage input to the battery power input unit 150 is less than the over-discharge reference voltage. The controller 150 cuts off the power input from the battery power input unit 130 to supply power to the optical modem even when the voltage input to the battery power input unit 130 is equal to or higher than the preset voltage when the battery is over- Lt; / RTI >

The controller 150 cuts off power output to the optical modem until the voltage input to the DC power input unit 110 becomes equal to or higher than the preset voltage when the power supplied to the battery power input unit 130 is shut off.

The control unit 150 controls the power supply to the optical modem when the voltage of the DC power input unit 110 and the voltage of the AC power input unit 121 fall below the preset voltage and the voltage of the battery power input unit 130 falls below the over- Turn off the output power. The control unit 150 determines whether the voltage of the AC power input unit 121 rises above the preset voltage or the voltage of the battery power input unit 121 exceeds the over-discharge reference voltage The power is not supplied to the optical modem unless the voltage of the direct current power input unit 110 rises above the preset voltage.

When the voltage input to the DC power input unit 110 becomes equal to or higher than a predetermined voltage in the case of outputting the AC power to the optical modem by applying the AC power, the controller 150 applies power to the DC power input unit 110, Output to the modem.

When the voltage inputted to the AC power input unit 121 becomes equal to or higher than the predetermined voltage in the case of outputting the power to the AC power input unit 121 by applying the power of the battery to the control unit 150, And outputs it to the optical modem.

That is, in the sequential power supply system composed of the DC power input unit 110, the AC power input unit 121, and the battery power input unit 130, When the power supply condition of the supply system is restored, the transfer operation is performed to perform the power supply through the upper power supply system.

However, when the voltage input to the battery power input unit 130 is less than the over-discharge reference voltage and the power supply to the optical modem is interrupted, the controller 150 controls the voltage input to the DC power input unit 110 to be equal to or higher than the preset voltage The power is not supplied to the optical modem until the power is turned on.

The light emitting unit 160 visually displays the type of power applied under the control of the controller 150. The light emitting unit 160 may include three light emitting diodes, for example, and three light emitting diodes may be installed in the case of the optical modem stabilizing apparatus 100. The light emitting unit 160 may be connected to the battery power input unit 110 when the power of the DC power input unit 110 is applied to the optical modem or when the power of the AC power input unit 121 is applied by the optical modem, 130 are applied to the optical modem by using different light emitting diodes.

3 is a circuit block diagram of an optical modem power stabilization apparatus according to an embodiment of the present invention,

4 is a circuit configuration diagram of an optical modem power stabilization apparatus according to a temporary example of the present invention.

3 and 4, in one embodiment of the present invention, the control unit may include three comparators 171, 172 and 173, two semiconductor switches 151 and 152, and a digital logic operator, The light emitting unit may include three light emitting diodes 161, 162, and 163.

The first comparator 171 compares the voltage input to the DC power input unit 110 with the preset voltage and when the voltage of the DC power input unit 110 is equal to or higher than the predetermined voltage, And the power of the direct current power input unit 110 is applied to the output unit 140. [ At this time, the first light emitting diode 161 is turned on.

The first semiconductor switch 151 is turned on toward the second light emitting diode 162 and the power of the AC power input unit 121 is supplied to the output unit 140 .

When the voltage of the DC power input unit 110 and the voltage of the AC power input unit 121 are less than the preset voltage and the voltage of the battery power input unit 130 is the overdischarge reference voltage or more, And the voltage of the battery power input unit 130 is applied to the output unit 140. [

As used in this embodiment, the term " portion " refers to a hardware component such as software or an FPGA (field-programmable gate array) or ASIC, and 'part' performs certain roles. However, 'part' is not meant to be limited to software or hardware. &Quot; to " may be configured to reside on an addressable storage medium and may be configured to play one or more processors. Thus, by way of example, 'parts' may refer to components such as software components, object-oriented software components, class components and task components, and processes, functions, , Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and components may be further combined with a smaller number of components and components or further components and components. In addition, the components and components may be implemented to play back one or more CPUs in a device or a secure multimedia card.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

100: Optical modem stabilization device
110: DC power input unit
121: AC power input unit
122: AC-DC converter section
130: Battery power input unit
140:
150:
160:
200: Control panel
300: Distribution automation terminal
400: Optical modem

Claims (7)

An output unit connected to the optical modem for supplying power;
A DC power input unit connected to a power supply line output from the power distribution automation terminal;
An AC power input unit connected to a branch line of an external power source input to the power distribution automation terminal device through a control panel;
An AC-DC converter for converting the AC power into a DC power;
A battery power input part connected to a battery inside the control box; And
And a power supply unit for supplying power to the DC power input unit and outputting the power to the optical modem when the voltage of the DC power input unit is equal to or greater than a predetermined voltage, And a controller for applying power to the battery power input unit and outputting the power to the optical modem when the voltage input to the AC power input unit is less than the predetermined voltage, Device.
The method according to claim 1,
Wherein the control unit includes a semiconductor switch for switching the power input to the DC power input unit, the AC power input unit, and the battery power input unit.
The method according to claim 1,
Wherein the control unit cuts off the power input to the battery power input unit when the voltage input to the battery power input unit is less than the over-discharge reference voltage.
The method of claim 3,
Wherein the control unit cuts off the power output to the optical modem until the voltage input to the DC power input unit becomes equal to or higher than the predetermined voltage when the power input to the battery power input unit is shut off.
The method according to claim 1,
The control unit applies power to the DC power input unit when the voltage input to the DC power input unit is equal to or higher than the predetermined voltage in the case of outputting the AC power to the optical modem, Output optical modem power stabilizer.
The method according to claim 1,
Wherein the control unit applies power to the AC power input unit when the voltage input to the AC power input unit is equal to or higher than the preset voltage when the power of the battery is applied to the optical modem, The optical power of the optical modem is stabilized.
The method according to claim 1,
And a light emitting unit for visually displaying the type of power applied under the control of the control unit.
KR1020150162814A 2015-11-19 2015-11-19 Apparatus for stabilizing a power source of optical modem KR101784407B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210042728A (en) * 2019-10-10 2021-04-20 한국전력공사 Power supply monitering apparatus for communication modem of das and power supply system comprising this
KR20210131163A (en) * 2020-04-23 2021-11-02 한전케이디엔주식회사 Apparatus and method for controlling power of modem for distribution automation system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4819762B2 (en) * 2007-07-26 2011-11-24 株式会社Ｎｔｔファシリティーズ Power feeding system and method for controlling power feeding system
KR101515474B1 (en) * 2013-11-08 2015-05-06 한전케이디엔주식회사 Automatic load transfer switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210042728A (en) * 2019-10-10 2021-04-20 한국전력공사 Power supply monitering apparatus for communication modem of das and power supply system comprising this
KR20210131163A (en) * 2020-04-23 2021-11-02 한전케이디엔주식회사 Apparatus and method for controlling power of modem for distribution automation system

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