KR101474863B1 - Apparatus for managing power source - Google Patents

Abstract

A power source managing apparatus is provided. A first power source supply apparatus is connected to a second power source supply apparatus. If failure of the first or second power source supply apparatus is sensed, a power source managing unit switches the second or first power source supply apparatus. In case a first power source is connected to a second power source and the first or second power source is turned off, a power source managing unit switches the second or first power source. A sensing unit monitors the voltage of the first and second power source supply apparatuses and monitors the on/off of the first and second power sources.

Description

[0001] APPARATUS FOR MANAGING POWER SOURCE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power management apparatus, and more particularly, to a power management apparatus capable of operating a public address system even in an emergency situation by having a dual power source.

Recently, buildings and various facilities are provided with a public hall broadcasting system for guiding evacuation to safety zones or providing general information when an emergency occurs through announcement broadcasting, general broadcasting, emergency control broadcasting, and remote broadcasting.

At this time, the public address system is configured in such a way as to prevent communication disconnection from each component and to broadcast even in an emergency. In this regard, Korean Patent No. 10-1152225 (published May 25, 2012) discloses a method of controlling real-time monitoring between devices by configuring a CAN communication method between the main controller, the remote group, and the remote control amplifier, A technique for preventing a failure due to equipment failure in an emergency is disclosed.

However, if a failure occurs in a power source or a power supply that supplies power to the public address system, even if an emergency occurs, the entire public address system is in an off state, so emergency broadcasting can not be performed even using the can communication method , But does not disclose a technique for this situation.

Korean Patent No. 10-1152225 (published May 25, 2012) discloses a "public address broadcasting system using CAN communication method ".

In one embodiment of the present invention, even if an abnormality occurs in any one of the power supply units, the power supply units are arranged in a dual manner and the power source for inputting power to the power supply unit is doubly connected, It is possible to provide a power management apparatus capable of preventing occurrence of situations in which broadcasting can not be performed. It should be understood, however, that the technical scope of the present invention is not limited to the above-described technical problems, and other technical problems may exist.

According to an aspect of the present invention, there is provided a power supply system including a first power supply unit and a second power supply unit, the first power supply unit and the second power supply unit detecting a failure of the first power supply unit or the second power supply unit, A first power source and a second power source, and when the power of the first power source or the second power source is turned off, the second power source or the first power source is switched to the second power source, A power source management unit for switching to a power source or a first power source, a sensing unit for monitoring the voltages of the first power source and the second power source, and monitoring on / off of the first power source and the second power source do.

According to any one of the above-mentioned objects of the present invention, even if an abnormality occurs in any one of the power supply units by disposing the power supply units in a dual manner and also connecting the power sources for inputting power to the power supply units, It is possible to prevent a situation in which the emergency broadcast can not be performed due to the power supply cut-off.

1 is a block diagram illustrating a power management system according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating the power management apparatus of FIG. 1. FIG.
FIG. 3A is a front view illustrating the power management apparatus of FIG. 1 implemented according to an embodiment of the present invention. FIG.
FIG. 3B is a rear view illustrating the power management apparatus of FIG. 1 implemented in accordance with an embodiment of the present invention. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "including" an element, it is to be understood that the element may include other elements as well as other elements, And does not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a power management system according to an embodiment of the present invention. 1, a power management system 1 includes a power management device 100, a first power supply 210, a second power supply 220, a first power source 310, A battery 400, a battery charger 500, a direct box 600, and a terminal 700, as shown in FIG. However, the power management system 1 of FIG. 1 is only one embodiment of the present invention, and therefore, the present invention is not limited to FIG.

1 may be connected to the first power supply unit 2100 and the second power supply unit 220 through a network. The power management apparatus 100 may also be connected to a direct box The terminal 700 can be connected to the first power supply unit 210 and the second power supply unit 220 via the power management apparatus 100 Can be connected.

The network refers to a connection structure in which information can be exchanged between each node such as terminals, devices, and servers. An example of such a network is RS-485, USB, serial communication, , A Local Area Network (LAN), a Wireless Local Area Network (WLAN), a Wide Area Network (WAN), a Personal Area Network (PAN), 3G, 4G, LTE, Wi-Fi and the like. 1 also includes a power management device 100, a first power supply 210, a second power supply 220, a first power source 310, a second power source 310, The battery 400, the battery charger 500, the direct box 600, and the terminal 700 are not limited to those shown in FIG.

The power management apparatus 100 can prevent the entire publicity broadcasting system from being turned off even if the first power supply apparatus 210 or the second power supply apparatus 220 fails, . Also, the power management apparatus 100 may connect the first power supply 210 and the second power supply 220 to each other so that even if one power supply fails, To be supplied smoothly. The power management apparatus 100 receives the switched AC voltage output, the switched DC and un-switched DC voltage outputs from the first power supply unit 210 or the second power supply unit 220, 210 or the second power supply 220 to determine whether there is an abnormality in the operation of the first power supply 210 or the second power supply 220. [ The power management apparatus 100 may switch to a device that operates normally when any one of the first power supply device 210 and the second power supply device 220 fails. Accordingly, the power management apparatus 100 can provide redundancy of the power supply unit so that devices of the public address system connected to the switched AC voltage, the switched DC voltage, and the unshown DC voltage terminal are not turned off and used without any problem have.

Also, the power management apparatus 100 may connect different power power sources, i.e., a first power source 310 and a second power source 320, so that when one power source is turned off, that is, ) Or the second power source 320 is turned off, it is possible to switch to another power source. Accordingly, the power management apparatus 100 can provide power redundancy so that the first power supply 210 and the second power supply 220 connected to the power management apparatus 100 are normally operated without being turned off .

The first power supply 210 and the second power supply 220 receive the AC voltage of the first power source 310 or the second power source 320 and generate a switched AC voltage, A switched DC voltage, and an unshown DC voltage. When the first power source 310 and the second power source 320 are turned off, the first power supply 210 and the second power supply 220 supply the switched DC voltage, which is the DC power, It is possible to output an un-switched DC voltage. Here, the first power supply unit 210 and the second power supply unit 220 may be used as a power supply unit that supplies power to the public address system.

The first power source 310 and the second power source 320 are connected to the power management apparatus 100 and can supply AC power to the power management apparatus 100. At this time, when a failure occurs in either the first power source 310 or the second power source 320, the connection with the power management apparatus 100 may be switched by the power management apparatus 100. [

The battery 400 may be charged by the battery charger 500. At this time, the battery charger 500 may have an overcharge prevention function that can automatically start charging if the voltage stored in the battery 400 is equal to or lower than a predetermined voltage by the emergency voltage, and stop charging automatically when the voltage exceeds a predetermined voltage . In addition, the battery charger 500 can use a digital meter to check the current state during charging. When connected to the battery 400, the state of the battery 400, i.e., normal, And a display unit for recognizing the display unit.

The direct box 600 can convert an unbalance signal into a balance signal and convert the balance signal into an unbalanced signal. The terminal 700 may be controlled by an administrator or a user and the terminal 700 may be connected to the power management system 700 through the user interface of the terminal 700. [ 1) can be controlled. At this time, the terminal 700 can be implemented as a computer that can access a remote server or terminal through a network. Here, the computer may include, for example, a notebook, a desktop, a laptop, and the like on which a WEB browser is installed.

FIG. 2 is a block diagram illustrating the power management apparatus of FIG. 1. FIG. 2, the power management apparatus 100 according to an exemplary embodiment of the present invention may include a power management unit 110, a power source management unit 120, a sensing unit 130, and a detection unit 140 have. The power management apparatus 100 may further include a display unit 150, a first output unit 160, a second output unit 170, and a third output unit 180.

When a power management application 100 or another server (not shown) operating in conjunction with the power management apparatus 100 transmits a power management application, a program, a web page, etc. to the terminal 700 according to an embodiment of the present invention , The terminal 700 can install or open an application, a program, a web page, and the like for the service. Also, the power management program may be driven in the terminal 700 by using a script executed in the web browser. Here, a web browser is a program that enables a WWW (World Wide Web) service, and is a program for receiving and displaying hypertext described in hypertext mark-up language (HTML), for example, Netscape (Netscape) An Explorer, chrome, and the like. Further, the application refers to an application on the terminal, for example, an app (app) running on a mobile terminal (smart phone). An app can be downloaded and installed from the mobile app marketplace, a virtual marketplace where mobile content can be bought and sold freely.

The connection of the network 200 means that the power management apparatus 100 and the terminal 700 or other components are connected to each other to communicate with each other. Means that a communication object is created at a communication contact for communication with a terminal connected to the communication terminal. The power management apparatus 100 can exchange data with each other through a communication object.

The power management unit 110 is connected to the first power supply unit 210 and the second power supply unit 220. When the first power supply unit 210 or the second power supply unit 220 detects a failure, And switches to the second power supply 220 or the first power supply 210. [ That is, when the power management unit 110 detects a failure of any one of the power supply units, the power management unit 110 can supply power to the public address system by not connecting the other power supply units. Also, when the power management unit 110 detects a failure of the first power supply unit 210 and the second power supply unit 220, the battery management unit 110 may switch the battery 400 to be connected. The power management apparatus 100 may be connected to a battery charger 500 that monitors the voltage of the battery 400 and supplies power to the battery 400 when the voltage of the battery 400 is less than a preset voltage have.

The power source management unit 120 is connected to the first power source 310 and the second power source 320. When the power of the first power source 310 or the second power source 320 is turned off, And switches to the power source 320 or the first power source 310. That is, the power source management unit 120, like the power management unit 110, detects the failure or the off state of any one of the power sources, and connects the first power source 210 or the second power source 210 It is possible to supply power to the power supply 220 without interruption.

The sensing unit 130 monitors the voltages of the first power supply unit 210 and the second power supply unit 220 and monitors the ON / OFF of the first power source 310 and the second power source 320 do. That is, the first power supply 210 detects whether the first power supply 210 is operating normally or not by using the voltage or current output from the first power supply 210 or the second power supply 220, The on / off state of the first power source 310 and the second power source 320 can be sensed by using the voltage or current output from the source 310 and the second power source 320. In addition, the sensing unit 130 may monitor the output voltage of the battery 400.

The detection unit 140 detects a contact of the first power source 210, the second power source 220, the first power source 310, and the second power source 320, And it can be informed through a contact point to the outside that it is a fault.

The display unit 150 may output the operation states of the first power supply unit 210 and the second power supply unit 220 and the input states of the first power source 310 and the second power source 320 . At this time, the display unit 150 may be any one of an LED, a PDP, an LCD, and an OLED. The terminal 700 can also check the status of the equipment.

The first output unit 160 may output a switched DC voltage. At this time, the voltage of the first output unit 160 may be 24V. In addition, the second output unit 170 may output a Switched AC voltage and an Unswitched AC voltage, and the voltage at this time may be 220V. The third output unit 180 may output the emergency DC power when no power is supplied from the first power source 310 and the second power source 320, and the voltage at this time may be 24V. Also, the first output unit 160 can be turned on or off by the terminal 700 or by remote control by another terminal.

Also, the first power supply 210, the second power supply 220, and the battery charger 500 may be connected through an interface. In this case, the interface may be RS-485, RS-422, RS-232, CAN, or TCP / IP.

The power management system according to the present invention connects the power source and the power supply unit in a double manner and monitors the state of the power source and the power supply unit, thereby enabling the user to broadcast without interruption even in an emergency. In addition, even if an emergency situation occurs in which one of the power supply units does not operate, it is possible to prevent power shutdown to the public address system beforehand, thereby preventing a situation in which emergency broadcast can not be performed due to power supply interruption .

The power management system of FIG. 2, which is not described above, can be easily deduced from the same or described contents of the power management system described above with reference to FIG. 1, and the description thereof will be omitted.

FIG. 3A is a front view for explaining a power management apparatus of FIG. 1 implemented in accordance with an embodiment of the present invention, FIG. 3B is a front view of a power management apparatus of FIG. 1 implemented according to an embodiment of the present invention, . 3A and 3B, a power management apparatus according to an exemplary embodiment of the present invention will be described. However, the present invention is not limited to this embodiment. It is apparent to those skilled in the art that the configuration or apparatus shown in FIG. 3B can be changed.

Referring to FIG. 3A, a front view of the power management apparatus 100 is shown. Referring to FIG. 3A, the display unit 150 may include at least six LEDs. Here, (1) may be turned on when the first power supply apparatus 210 is in operation, and turned off when the first power supply apparatus 210 is in an inoperative state. 2 is turned on when the second power supply 220 is in operation, and turned off when the second power supply 220 is not operating.

3 is turned on when the battery 400 is connected to the power management apparatus 100, and turned off when the battery 400 is not connected. 4 is turned on when the first power source 310 is input, off when the first power source 310 is not input, and 5 is turned on when the second power source 320 is input. 6 is turned on when the power management apparatus 100 is in operation so that the power management apparatus 100 is operating, and can be turned off when the power is off but the power is off in the operation program.

Referring to FIG. 3B, a back surface of the power management apparatus 100 is shown. Referring to FIG. 3B, an AC power source to be used as a main power source of the first power source 310 or the second power source 320 may be input, and the power source may be a first power source 310 or a second An AC power source to be used as a sub of the power source 320 may be input. 3 may be an output terminal of the first power source 310 or the second power source 320 inputted to the first power source 310 and may be connected to the first power source 210. 4 may be an output terminal of the first power source 310 or the second power source 320 inputted in step 2, and may be connected to the second power supply 220.

(5) is a communication terminal for monitoring the state of the apparatus and for controlling the power supply, (6) is a first power supply device 210, a second power supply device 220, a power management device 100, 310, the second power source 320, and the battery 400 may be output. 7 is an address set switch, which can be a switch for setting the equipment number, and can set an address ID.

 ⑧ is battery direct current 24V input terminal, and it is a terminal to connect battery power for emergency power. At this time, the power management apparatus 100 can switch to the output of the battery 400 when a problem occurs in the input of the first power source 310 and the second power source 320. [ (9) is a DC fuse, which can protect the power management apparatus 100 by shutting off the DC power when an abnormality occurs in the apparatus as a fuse to the DC power source.

10 is an AC power input terminal and may be a terminal to which switched alternating currents 1, 2 and 3 output from the first power supply device 210 are input, 11 is an AC input terminal, and a second power supply device 220, And the switched alternating currents 1, 2, The switched-on / unshielded DC 24 V output from the first power supply 210 can be input and the normal power of the first power supply 210 can be determined by the unshifted DC 24 V. The switched-on / unshielded direct current 24 V output from the second power supply 220 can be input, and the unshielded direct current 24 V can determine the normal state of the second power supply 220.

은 원격으로 전원 관리 장치(100)의 동작을 시키기 위한 접점 입력 단자이고, 이 단자가 오픈(Open)되는 경우, PC로 전원 관리 장치(100)의 동작을 온/오프 제어할 수 있다. 또한,

은 직류 24V 전원이 항상 출력되는 단자로서, 비상시에도 전원이 항상 출력될 수 있다.Reference numeral 14 denotes a terminal to which an emergency DC power is output when the first power source 310 or the second power source 320 is off, that is, a power failure, 15 denotes a terminal for supplying DC power, It is possible.

Is a contact input terminal for remotely operating the power management apparatus 100. When the terminal is opened, the operation of the power management apparatus 100 can be controlled on / off by the PC. Also,

Is a terminal to which DC 24V power is always output, and power can be always outputted even in an emergency.

은 교류 전원 공급 단자로서, 전원 관리 장치(100)가 전원이 온 되었을 때, 교류 전원이 출력될 수 있다. 또한, 전원이 온 된 경우 순차적으로 교류 전원이 출력되며, 전원 오프시에는 역순으로 오프될 수 있다. 그리고, 스위치드 각 그룹(총 3 포트)당 최대 15A가 출력될 수 있고, 전체 9 포트를 사용하는 경우 최대 20A 사용가능하다.

는 교류 전원이 항상 공급되는 단자로서, 전원이 오프되면 안되는 기기들, 즉 항상 전원이 공급되어야 하는 기기들이 연결될 수 있다.

Is an AC power supply terminal. When the power management apparatus 100 is powered on, AC power can be output. In addition, when the power is turned on, the AC power is sequentially output, and when the power is off, it can be turned off in the reverse order. In addition, up to 15A can be output per switched group (total 3 ports), and up to 20A can be used when using all 9 ports.

Is a terminal to which AC power is always supplied, and devices that should not be turned off, that is, devices to which power is always supplied, may be connected.

The power management system of FIGS. 3A and 3B can be easily derived from the same or described contents of the power management system through FIGS. 1 and 2, .

The power management apparatus according to the embodiment described with reference to Figs. 1 to 3 may also be implemented in the form of a recording medium including instructions executable by a computer, such as an application programmed by a computer or a program module. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, the computer-readable medium may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes any information delivery media, including computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

Claims (8)

Wherein the first power supply unit and the second power supply unit are directly connected to the first power supply unit or the second power supply unit when the first power supply unit or the second power supply unit detects a failure, A power management unit for switching the first power supply unit and the second power supply unit to be connected to a directly connected battery when a failure is detected;
The first power source and the second power source being switched directly to the second power source or the first power source when the power of the first power source or the second power source is turned off, And a power source management unit for switching the second power source to be connected to the battery when the power of the second power source is turned off; And
A first power source and a second power source for monitoring the voltage of the first power source and the second power source and for monitoring on /
Lt; / RTI >
A first power source, a second power source, a first power source, a second power source, a battery charger and a battery are directly connected, and the first power source, the second power source, The power source is supplied to the load terminal via the battery charger through the direct box for converting the unbalanced signal and the balanced signal into the balanced signal and the unbalanced signal, the one node and the other node of the battery charger are connected to the power management device and the direct box One of the nodes and the other node of the direct box are connected to the battery charger and the terminal,
The power management apparatus includes a first output unit that outputs a switched DC voltage and an unswept DC voltage and that is turned on and off by remote control, a switched AC voltage, and an Unswitched AC And a third output unit for outputting an emergency DC power when no power is supplied from the first power source and the second power source, And a power management unit for receiving the un-switched DC voltage and determining whether there is an operation abnormality of the first power supply unit and the second power supply unit through the DC voltage of the first power supply unit and the second power supply unit, .
delete The method according to claim 1,
Wherein the power management unit is connected to a battery charger that monitors a voltage of the battery and supplies power to the battery when the voltage of the battery is less than a predetermined voltage.
The method according to claim 1,
And the sensing unit monitors the output voltage of the battery.
The method according to claim 1,
A display unit for outputting operational states of the first power supply unit and the second power supply unit, and an input state of the first power source and the second power source;
The power management device further comprising:
delete delete The method according to claim 1,
Wherein the first power supply, the second power supply, and the battery charger are connected through an interface.

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