KR101753091B1 - Communication system combined with ups and method thereof - Google Patents

Abstract

In a communication system in which an uninterruptible power supply unit is integrated, a rectifier and a ship process constituting an uninterruptible power supply unit are built in a communication system to constitute a unified communication system, and an AC power source for charging the battery and supplying power to the communication system And monitoring and control of the uninterruptible power supply such as AC power unstable or power supply using battery in the event of power failure can be implemented to shorten installation work period on site rather than separate construction of rectifier and capacitor from communication system In addition, it is possible to reduce the rack-mounted area for the installation of the communication system. In addition, even if the space for installing the rack is insufficient, the integrated communication system can be installed as a table or a wall- do.

Description

TECHNICAL FIELD [0001] The present invention relates to a communication system and an operation method in which an uninterruptible power supply (UPS)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication system, and more particularly, to a communication system in which a rectifier constituting an uninterruptible power supply (UPS) and a battery are built in a communication system to constitute an integrated communication system, it is possible to reduce the mounting area on the rack and to install the communication system in the form of a table or a wall even if the space for installing the rack is insufficient, System and method of operation.

Generally, an uninterruptible power supply (UPS) is a device that charges power during normal operation and automatically supplies the power for a certain period of time during a power failure to support stable operation during power failure even during a power failure.

As shown in FIG. 1, the uninterruptible power supply unit is implemented in a communication system that performs various communication functions on a communication equipment manufactured in a rack form, and is used to supply a stable power supply even in a power failure of the communication system.

1, an uninterruptible power supply unit and a communication system 100 based on a communication equipment, which are conventionally manufactured in the form of a rack, are separately constructed, and the uninterruptible power supply unit may be composed of a rectifier 102 and a battery 104 .

As the battery 104, a lead acid battery is used, and the rectifier 102 controls and monitors the charging and discharging of the lead acid battery. The information controlled and monitored by the rectifier 102 is monitored and controlled by the communication system 100 using a separate communication method between the rectifier 102 and the communication system 100.

The rectifier 102 converts an alternating current (AC) power to a direct current (DC) power to charge the battery 104. When the instantaneous AC power is unstable and a power failure occurs, And supplies the DC power provided from the battery 104 to the communication system 100, so that the communication system 100 operates stably. Accordingly, the communication system 100 can be stably operated by receiving the DC power from the battery 104 when the AC power source is unstable or a power failure occurs.

However, as described above, since the uninterruptible power supply unit including the rectifier 102 and the battery 104 is configured separately from the communication system 100 in the rack, the uninterruptible power supply unit may be separately configured and connected to the communication system 100 The communication system 100 is installed in the field because the connection is required, and the installation process takes a long time due to a complicated and complicated process.

In addition, since the rectifier 102 and the battery 104 are separated from the communication system 100, a space for installing the rectifier 102 and the battery 104 must be secured in addition to the space for installing the communication system 100, There is a problem that the power supply module for converting the AC power to the DC power supply and the DC-DC conversion power supply module for the communication system 100 have to be used in a dual mode.

(Patent Literature)

Korean Utility Model Registration No. 20-0428273

Therefore, in the communication system in which the uninterruptible power supply unit is integrated, the rectifier and the battery constituting the uninterruptible power supply unit are integrated in the communication system to constitute a unified communication system, and the charging function of the battery and the power supply , It is possible to monitor and control the uninterruptible power supply such as AC power unbalance of AC power source and battery power supply in case of power failure, The construction period can be shortened and the rack-mounted area for the installation of the communication system can be reduced. Even when the space for installing the rack is insufficient, the miniaturized communication system can be installed as a table or a wall- In which the uninterruptible power supply unit for increasing the power consumption To provide a system and method of operation.

The present invention relates to a communication system in which an uninterruptible power supply unit is integrated. The communication unit communicates with a communication module performing a communication function and a battery unit to check a current voltage charged in the battery unit, A communication device including an uninterruptible power supply unit control unit for controlling whether or not charging of the battery unit is performed by controlling a supply unit, and a control unit for providing a first operation power input from an external power supply source to the communication device, The power supply unit supplies the second operation power from the battery unit to the communication device and performs charging or shutdown of the battery unit under the control of the uninterruptible power supply control unit. And performs the charging according to the control, and when the external power supply source is unstable, And the battery unit that supplies the second operation power to the power supply unit, wherein the communication device, the power supply unit, and the battery unit are integrally formed on the same plane frame designed as different mounting spaces .

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Also, the uninterruptible power supply control unit may check the current voltage charged in the battery unit through communication with the battery unit, compare the current voltage with the safety reference voltage, And if the current voltage is lower than the safety reference voltage or if the communication fails, the charging of the battery unit is blocked so that the charging of the battery unit is interrupted .

The power supply unit may include a charging unit for charging or disconnecting the battery unit by sensing a current voltage of the battery unit, an AC-DC converter for converting the AC power input from the external power source into a direct current DC converter unit to charge the battery unit by controlling the charging unit, to provide the DC power source converted by the AC-DC converter unit to the communication device as the first operation power source, And a power supply controller for supplying power to the communication device.

The charging unit may be configured to determine a current voltage charged in the battery unit, compare the current voltage with a safety reference voltage, a charging start reference voltage, or a charge cutoff reference voltage, and then, when the current voltage is higher than the safety reference voltage And charging the battery unit if the current voltage is lower than the safety reference voltage or higher than or equal to the charge cutoff reference voltage, .

The battery unit includes a battery cell, a communication unit that communicates with the communication device, a protection circuit unit that monitors the state of charge of the battery cell to prevent overcharge or overdischarge, And a control unit for providing status information or manufacturing information of the battery cell.

The battery cell is characterized by using lithium ion or lithium polymer.

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In addition, the battery unit is connected to the communication device through a connector to perform communication, and a predetermined port for transmitting a contact signal to the communication device for mounting the battery unit is allocated on the connector.

Also, the battery unit may include a separate on / off switch that can independently turn on / off the operation of the battery unit regardless of the operation of the power supply unit.

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According to another aspect of the present invention, there is provided a method of controlling an operation of an uninterruptible power supply, comprising the steps of: detecting a current voltage charged in a battery unit through communication with a battery unit in a communication device; Comparing the current voltage with a safety reference voltage when the communication is successful in the communication device, determining if the current voltage is higher than the safety reference voltage, comparing the current voltage with a safety reference voltage, Controlling charging or charging of the battery unit to be performed according to charging conditions when the communication fails or when the current voltage is lower than the safety reference voltage; So that it can be controlled.

In a communication system in which an uninterruptible power supply unit is integrated, a rectifier and a battery constituting an uninterruptible power supply unit are integrated in a communication system to constitute an integrated communication system. The communication system includes a battery charging function and a power supply By implementing surveillance and control of uninterruptible power supply such as DC power conversion of AC power source and unstable AC power supply or battery power supply in case of power failure, Can be shortened.

In addition, it is possible to reduce the rack-mounted area for installing the communication system, and even when the space for installing the rack is insufficient, the miniaturized communication system can be installed in the form of a table or a wall-hanging type.

1 is a view showing an example in which a conventional rack uninterruptible power supply unit and a communication system are separately configured,
2 is a block diagram of a communication system in which an uninterruptible power supply unit according to an embodiment of the present invention is integrated;
3 is a detailed block diagram of each component of the communication system in which the uninterruptible power supply unit according to the embodiment of the present invention is integrated,
4 is a top plan view and a four-room side view of a communication system in which an uninterruptible power supply unit according to an embodiment of the present invention is integrated;
FIG. 5 is a flowchart of operation control in a communication system in which an uninterruptible power supply unit according to an embodiment of the present invention is integrated. FIG.

Hereinafter, the operation principle of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

2 is a block diagram of a communication system in which an uninterruptible power supply unit according to an embodiment of the present invention is integrated. The communication unit 210 may include a power supply unit 220, a battery unit 230, .

Hereinafter, operation of each component of the communication system 200 in which the uninterruptible power supply unit according to the embodiment of the present invention is integrated will be described in detail with reference to FIG.

First, the communication device 210 is a module that performs a communication function in the communication system 200 in which the uninterruptible power supply unit is integrated. For example, in a wired communication, an asymmetric digital subscriber line (ADSL), a very high-data rate digital a subscriber line, an Ethernet, an asynchronous transfer mode (ATM), a synchronous digital hierarchy (SDH), a multi-service provisioning platform (MSPP), a packet transport network (PTN), a public switched telephone network And may be one of various communication equipment used for code division multiple access (CDMA), wideband code division multiple access (WCDMA), long term evolution (LTE), and the like in wireless communication.

The power supply unit 220 is a device for performing the operation of the rectifier of the uninterruptible power supply. The power supply unit 220 converts an AC power source, which may be an external power source, to a DC power source and provides the power source as an operation power source of the communication device 210. In addition, when the AC power is unstable or a stable power supply is difficult due to occurrence of a power failure or the like, supply of the DC power converted from the AC power is interrupted, DC power supplied from the battery unit 230 is supplied to the communication device 210 can do. To this end, the power supply unit 220 performs an operation of charging the battery unit 230 using the AC power for a period of time to supply the operation power using the AC power source, and checks the state of charge of the battery unit 230 to overcharge The charging operation is controlled so that overdischarge does not occur.

The battery unit 230 includes a battery using lithium ion or lithium polymer as the battery cell 238. The battery unit 230 includes a predetermined communication module to perform communication with the communication device 210 or the power supply unit 220, Charge status information, and the like.

At this time, the power supply unit 220 and the battery unit 230 may be integrated into the communication system 200 according to an embodiment of the present invention, thereby performing the operation of the uninterruptible power supply.

FIG. 3 is a detailed block diagram of each component of the communication system in which the uninterruptible power supply unit according to the embodiment of the present invention is integrated.

Hereinafter, the operation of each component of the communication system will be described in detail with reference to FIG. 2 and FIG.

First, the power supply unit 220 may include a power control unit 222, a charging unit 224, an AC-DC converting unit 226, and the like.

The AC-DC power conversion unit 226 receives AC power from an external power source that can be connected to the communication system 200 and converts the AC power into DC power.

The charging unit 224 senses the current voltage of the battery unit 230 integrated with the communication system 200 under the control of the power control unit 222 and outputs the current voltage of the battery unit 230 to the predetermined charging start reference Voltage or charge cutoff reference voltage. The charging unit 224 charges the battery unit 230 when the current voltage of the battery unit 230 is lower than the charging start reference voltage, The charging of the battery unit 230 is blocked.

The charging unit 224 is informed through the uninterruptible power supply control unit 214 that the current voltage of the battery unit 230 is lower than the safety reference voltage or is informed that a communication failure occurs during operation of the battery unit 230 , So that the battery 230 is not charged.

The power control unit 222 controls the overall operation of the power supply unit 220. That is, the power control unit 222 provides the converted DC power through the AC-DC power conversion unit 226 as the operating power of the communication device 210 and the stable power supply due to the unstable AC power, DC power from the battery unit 230 is supplied to the communication device 210 as an operation power source.

The power control unit 222 controls the charging unit 224 during the time period for providing the operating power to the communication device 210 using the external power supply such as the AC power supply in the charge control for the battery unit 230 And performs an operation of charging the battery unit 230 using the AC power source. At this time, the power control unit 222 checks the state of charge of the battery unit 230 and controls the charging operation so that overcharge or overdischarge does not occur.

Next, the communication device 210 may include a communication module 212, an uninterruptible power supply control unit 214, and the like.

The communication module 212 may be a communication device used for wired or wireless communication functions and used for ADSL, VDSL, Ethernet, ATM, SDH, MSPP, PTN, PSTN, In communication, it can be one of various communication equipments used for CDMA, WCDMA, LTE and the like, and can perform a corresponding communication function.

The uninterruptible power supply unit control unit 214 monitors the states of the power supply unit 220 and the battery unit 230 and controls the power supply unit 220 to prevent the battery unit 230 from being overcharged or overdischarged according to the state of the battery unit 230 To be controlled.

That is, the uninterruptible power supply control unit 214 determines in real time whether or not the battery unit 230 is mounted, and the over-discharge protection circuit of the protection circuit unit 236 operates due to overdriving of the battery unit 230, , It is confirmed whether or not the communication with the communication unit 232 is successful.

The uninterruptible power supply unit control unit 214 compares the current voltage of the battery unit 230 with the safety reference voltage and determines that the charging unit 224 of the power supply unit 220 And controls the battery unit 230 not to be charged.

In this case, when the battery such as a lithium polymer battery is left in an overdischarged state for a long time (more than 1 year), if the battery has a very low charging voltage, the chemical structure of the chemical substance inside the lithium polymer battery becomes unstable Which may be referred to as a voltage. If charging is continued for a lithium polymer battery below this safety reference voltage, a chemical gas is generated in the lithium polymer battery, gas is ejected through the weak gap of the lithium polymer package, or the package of the lithium polymer is deformed A situation may arise and a problem such as explosion of the lithium polymer battery may occur due to the occurrence of such a situation.

Therefore, the uninterruptible power supply control unit 214 checks whether the current voltage of the battery unit 230 is lower than the safety reference voltage, and controls the battery unit 230 so that the battery unit 230 is not charged, It is necessary to prevent an accident such as an explosion of the vehicle.

At this time, the uninterruptible power supply control unit 214 periodically checks the communication with the communication unit 232 of the battery unit 230 to detect a failure during operation of the battery unit 230. For example, when the communication failure is continuous The operation of the charging unit 224 is stopped to prevent an accident caused by the failure of the battery unit 230. [ In addition, the battery unit 230 can be removed or replaced by an operator by generating an alarm about the failure of the battery unit 230, so that the service can be stably performed by the communication system 200.

 The battery unit 230 may include a communication unit 232, a control unit 234, a protection circuit unit 236, a battery cell 238, an output control unit 240, and the like.

The communication unit 232 transmits and receives data related to the battery unit 230 between the controller 234 of the battery unit 230 and the UPS unit 214 according to a predetermined control. At this time, the communication unit 232 may use one of the RS232, I2C, and SMBUS (System Management BUS) serial communication methods for communication with the uninterruptible power supply control unit 214.

The battery cell 238 may be repeatedly used for charging and discharging as a constituent element of the battery. The protection circuit unit 236 prevents the battery cell 238 from being overcharged or overdischarged during charging and discharging. That is, the protection circuit portion 236 performs an operation for protecting the stability and life of the battery cell 238 due to overcharge or overdischarge.

The control unit 234 manages the status information and the manufacturing information of the battery unit 230 and communicates with the uninterruptible power supply unit control unit 214 through the communication unit 232 to respond to the request of the uninterruptible power supply unit control unit 214 Information. At this time, the state information and the manufacturing information of the battery unit 230 may include, for example, the temperature, voltage, current, charge capacity, remaining capacity, charge current, charge voltage, , Full charge, full discharge), alarm generation (no remaining capacity, high temperature alarm), number of charge / discharge cycles, manufacture date, serial number or manufacturer information.

The output control unit 240 controls the output of the battery unit 230 under the control of the control unit 234. That is, when the battery unit 230 is built in the communication system 200, the output control unit 240 determines that the communication system 200 is operated by the remaining capacity of the battery unit 230 It is possible to control the output of the battery unit 230 to be blocked.

4 is a plan view of a communication system in which an uninterruptible power supply unit according to an embodiment of the present invention is integrated.

4, the communication system 200 in which the uninterruptible power supply unit is integrated can accommodate a space in which the existing communication system is mounted by integrating the communication device 210, the power supply unit 220, and the battery unit 230 The first mounting space 400, the second mounting space 402, and the third mounting space 404 in the same plane.

The communication device 210 can be mounted in the first mounting space 400 designed as described above and the power supply unit 220 can be mounted in the second mounting space 402. In the third mounting space 404, The portion 230 can be mounted.

At this time, the battery unit 230 is connected to the communication device 210 mounted in the first mounting space 400 through the connector 406, and the connector 406 is connected to the battery unit (Not shown) such as an ID, an Insert Pin, or an Equipment Pin for transmitting / receiving a contact signal for recognizing the normal mounting of the connector 230. Such a port may be a port employing a serial communication method such as RS232, I2C, SMBUS (System Management Bus), or the like.

The battery unit 230 is provided with a separate on / off switch 408 that can independently turn on / off the operation of the battery unit 230 regardless of the operation of the power supply unit 220 The user can operate the on / off switch 230 such that the battery unit 230 is not unnecessarily operated during the operation of not connecting the external AC power source to the communication system 200, such as the mobile installation of the integrated communication system 200. [ The battery unit 230 can be prevented from being operated by the power supply unit 220 through an operation of turning off the battery unit 230 by using the power supply unit 408.

FIG. 5 is a flow chart of operation control in a communication system in which an uninterruptible power supply according to an embodiment of the present invention is integrated. Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 2 to 5. FIG.

First, the uninterruptible power supply control unit 214 of the communication device 210 determines whether the battery unit 230 is mounted in the communication system 200 through communication with the battery unit 230 (S500).

The communication system 200 of the present invention transmits and receives a contact signal to and from a connector 406 connected between the battery unit 230 and the communication device 210 in order to recognize that the battery unit 230 is mounted in hardware. The uninterruptible power supply control unit 214 may determine whether a predetermined contact signal generated when the battery unit 230 is mounted is generated, Can be determined.

At this time, the above port can be allocated, for example, as an ID, an Insert Pin, or an Equipment Pin, and when the battery unit 230 is mounted, a contact signal on the pin is set to be generated as a logic "high & .

Accordingly, the uninterruptible power supply control unit 214 can determine whether the battery unit 230 is mounted by inspecting a contact signal generated at a predetermined port on the connector 406 to which the battery unit 230 is connected.

The uninterruptible power supply unit control unit 214 may supply information on whether the battery unit 230 is mounted or not to the power supply unit 220 or the power supply unit 220 may be provided with the uninterruptible power supply unit control unit 214, It is possible to determine whether or not the battery unit 230 is mounted by hardware.

If it is determined that the battery unit 230 is mounted, the power supply unit 220 controls the charging unit 224 to sense the current voltage of the battery unit 230, (S501). If the current voltage is lower than the charging start reference voltage, the charging of the battery unit 230 is performed (S502). If the current charging voltage is lower than the charging starting reference voltage, If the voltage is equal to or higher than the voltage, charging to the battery unit 230 is cut off.

Meanwhile, the uninterruptible power supply control unit 214 tries to communicate with the battery unit 230 to check whether the battery unit 230 operates normally (S503). At this time, the uninterruptible power supply control unit 214 may attempt to communicate with the communication unit 232 of the battery unit 230 for one minute or up to ten times, for example.

Next, the uninterruptible power supply control unit 214 checks whether or not communication with the battery unit 230 is normally performed through the above communication attempt (S504).

If the communication with the battery unit 230 fails, the uninterruptible power supply control unit 214 controls the power supply unit 220 so as to prevent the charging operation from being performed to the battery unit 230 (S511) (S512) to prevent an accident such as an explosion due to a failure of the battery unit (230).

However, if the communication with the battery unit 230 is successful (S504), the uninterruptible power supply unit control unit 214 receives the current charging voltage status information of the battery unit 230 and determines that the current voltage of the battery unit 230 is safe It is checked whether or not it is lower than the reference voltage (S505).

At this time, when the current charging voltage of the battery unit 230 is lower than the safety reference voltage, the uninterruptible power supply unit control unit 214 controls the power supply unit 220 so that the charging operation of the battery unit 230 is not performed , S512).

However, when the current charging voltage of the battery unit 230 is equal to or higher than the safety reference voltage, the uninterruptible power supply control unit 214 controls the power supply unit 220 to charge the battery unit 230 (S506) .

Next, the uninterruptible power supply control unit 214 attempts to communicate with the battery unit 230 again during the charging operation to the battery unit 230 (S507). At this time, the uninterruptible power supply control unit 214 may attempt to communicate with the communication unit 232 of the battery unit 230 for one minute or up to ten times, for example, as in the previous communication attempt.

Then, the uninterruptible power supply control unit 214 checks whether the communication with the battery unit 230 is normally performed through the communication attempt as described above, and checks whether the battery unit 230 is defective or not (S508).

If the communication with the battery unit 230 fails, the uninterruptible power supply control unit 214 controls the power supply unit 220 so as to prevent the charging operation from being performed to the battery unit 230 (S511) Thereby generating an alarm for failure of the battery 230 (S512).

However, when communication with the battery unit 230 is normally performed, the uninterruptible power supply control unit 214 controls the power supply unit 220 to control charging or shutdown according to the charging state of the battery unit 230.

That is, when it is checked that communication with the battery unit 230 is normally performed, the power supply unit 220 controls the charging unit 224 so that the charging voltage of the battery unit 230 according to the charging operation of the battery unit 230 And checks whether the current charging voltage of the battery unit 230 is equal to or higher than a preset charging cut-off reference voltage (S509).

If the current charging voltage of the battery unit 230 is lower than the predetermined charging cut-off reference voltage, the power supply unit 220 controls the charging unit 224 to continue charging the battery unit 230.

However, if the current charging voltage of the battery unit 230 is equal to or higher than a predetermined charging cutoff reference voltage, the power supply unit 220 controls the charging unit 224 to prevent charging operation to the battery unit 230 (S510).

As described above, in the communication system in which the uninterruptible power supply unit is integrated, a rectifier constituting the uninterruptible power supply unit and a battery are incorporated in a communication system to constitute a unified communication system, and a charging function of the battery and a power supply , It is possible to monitor and control the uninterruptible power supply such as AC power unbalance of AC power source and battery power supply in case of power failure, It is possible to shorten the construction period and reduce the rack mounting area for the installation of the communication system and even if the space for installing the rack is not enough, the miniaturized communication system can be installed in the form of a table or a wall- .

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention should not be limited by the illustrated embodiments but should be defined by the appended claims.

In a communication system in which an uninterruptible power supply unit is integrated, a rectifier constituting an uninterruptible power supply unit and a battery are incorporated in a communication system to constitute an integrated communication system, and a charging function of a battery and an AC power supply for supplying power to the communication system By implementing surveillance and control of the uninterruptible power supply such as DC power conversion and unstable AC power supply or power supply using battery in case of power failure, it is possible to shorten installation work period in the field rather than construct rectifier and battery separately from communication system. In addition, it is possible to reduce the rack mounting area for installation of communication system, and even if the space for installing the rack is insufficient, it is possible to install the communication system of miniaturized structure as a table or a wall-hanging type, , And a communication system.

210: communication device 212: communication module
214: Uninterruptible power supply control unit 220: Power supply unit
222: power supply control unit 224:
226: AC-DC conversion unit 230: Battery unit
232: communication unit 234:
236: Protection circuit part 238: Battery cell
240:

Claims (12)

An uninterruptible power supply unit for controlling whether or not the battery unit is charged by checking a current voltage charged in the battery unit through communication with a communication module performing a communication function and controlling the power supply unit according to the determined current voltage, A communication device including a control unit,
Wherein the first operation power supplied from an external power supply source is provided to the communication device or the second operation power supplied from the battery unit provided in the unstable state of the external power supply source is supplied to the communication device, The power supply unit for charging or shutting off the battery unit under the control of the device control unit,
And the battery unit that performs charging according to the control of the power supply unit and supplies the second operation power to the power supply unit when the external power supply source is unstable,
Wherein the communication device, the power supply unit, and the battery unit are integrally formed in a coplanar frame designed as a different type of mounting space. delete The method according to claim 1,
Wherein the uninterruptible power supply unit control unit comprises:
And a control unit for controlling the power supply unit when the current voltage is equal to or higher than the safety reference voltage after comparing the current voltage with the safety reference voltage by checking the current voltage charged in the battery unit through the communication with the battery unit, And the charging is blocked when the current voltage is lower than the safety reference voltage or when the communication fails. The battery charger according to claim 1, Integrated communication system. The method according to claim 1,
The power supply unit,
An AC-to-DC converter for converting an AC power input from the external power supply source into a DC (direct current)
The AC power supply unit supplies the DC power converted by the AC-DC converter to the communication device as the first operation power while the power supply unit charges the battery unit, And a power supply control unit for allowing the power supply unit to provide the communication device with the uninterruptible power supply. 5. The method of claim 4,
The power control unit includes:
And a control unit for comparing the current voltage with a safety reference voltage, a charging start reference voltage or a charge cutoff reference voltage, and comparing the current voltage with the safety reference voltage, Charging the battery unit when the current voltage is lower than the safety reference voltage or higher than or equal to the charge cutoff reference voltage, Wherein the uninterruptible power supply unit is integrated with the communication system. The method according to claim 1,
The battery unit includes:
A battery cell,
A communication unit for performing communication with the communication device;
A protection circuit unit for monitoring the charged state of the battery cell to prevent overcharging or overdischarging;
And a controller for providing status information or manufacturing information of the battery cell to the communication device via the communication unit,
Wherein the uninterruptible power supply unit is integrated with the uninterruptible power supply. delete delete The method according to claim 1,
The battery unit includes:
Wherein a predetermined port for transmitting a contact signal for mounting the battery unit to the communication device is allocated on a connector, the communication unit being connected to the communication unit and performing communication, . delete delete 10. An operation control method in a communication system in which the uninterruptible power supply unit of claim 1 is integrated,
Detecting a current voltage charged in the battery unit through communication with the battery unit in the communication device;
Determining whether the battery unit is defective according to whether or not the communication is successful in the communication device;
Comparing the current voltage with a safety reference voltage if the communication is successful at the communication device;
When the current voltage of the communication device is higher than the safety reference voltage, controlling to charge or cut off the battery according to a preset charging condition;
Controlling the charging of the battery unit to be interrupted if the communication fails or the current voltage is lower than the safety reference voltage at the communication device
And controlling the operation of the uninterruptible power supply.

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