KR100942266B1 - Power management system and mangement method and computer-readable medium recording program thereof - Google Patents

Abstract

PURPOSE: A power management system, a power management method and a media recordable with a computer are provided to measure use power used by a plurality of clients by using a power management central server. CONSTITUTION: A use power measuring unit(111) of a client(110) measures electric energy consumed in one among a monitor, a CPU, a RAM, a hard disk, a graphics card, a sound card, a network interface card, a USB device, a cooling pen and a main board. A power saving policy performing unit(112) performs a power consumption policy. A power consumption policy unit of the power management center server analyzes use power data and the saving power consumption policy. A saved power calculating unit generates saving power data by calculating saved saving electricity according to the saving power consumption policy.

Description

Computer readable medium recording power management system, power management method and power management program {Power management system and mangement method and computer-readable medium recording program}

The present invention relates to a computer-readable medium that records a power management system, a power management method, and a power management program. More specifically, the present invention relates to a power saving policy by measuring and analyzing power used by a plurality of clients, which are computing devices. A power management system, a power management method, and a computer-readable medium recording a power management program, which can efficiently manage power to be used in the future by predicting the power to be used by counting the power used by the clients in advance. will be.

In general, power management of a conventional computing device is performed by a power saving program provided by an operating system of each computing device.

For example, in the power management of the Windows operating system, when there is no input by an input device such as a keyboard or a mouse for a predetermined time by the user's time setting, the power of the hard disk or the monitor is turned off.

In addition, the power management of the Windows operating system may be switched to the standby mode of operating the system with the minimum power when there is no input by an input device such as a keyboard or a mouse for a certain time.

However, this conventional power management method is suitable for home use because it is performed individually by the operating system of the client, which is each computing device, and integrated power management is difficult in a place where a plurality of clients such as a government office, a company, and a school are installed. There is a problem.

In addition, the conventional power management method has a problem in that efficient power management cannot be performed because the hard disk or the monitor is turned off and the standby mode is switched depending on whether the input device is input by simple time setting.

The present inventors have made efforts to efficiently manage the power used by a plurality of clients, and as a result, a single power management central server measures power of all clients to perform a power saving policy, and the power used by the clients in the future. To develop a technical configuration that can be predicted to complete the present invention.

Accordingly, an object of the present invention is a computer that records a power management system, a power management method and a power management program that can efficiently manage power usage by measuring the power used by a plurality of clients using a single power management central server. To provide a medium that can be read.

In addition, another object of the present invention is a power management system, a power management method and a power management program that can select a target client of the power saving target of the clients to selectively perform a power saving policy for the target client To provide a computer-readable recording medium.

In addition, another object of the present invention can be read by a computer recording a power management system, a power management method and a power management program that can generate and provide the predicted power data to be used in the future by aggregating the used power data used by the clients To provide the medium.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention is connected to a plurality of clients and the clients having a power consumption measuring unit for measuring the amount of power used to generate power consumption data, power management for receiving and processing the power usage data And a central server, wherein the power management central server analyzes the used power data, selects a target client which is a target of power saving among the clients, and generates a power saving policy for the target client. It includes a generation unit, the client provides a power management system including a power saving policy execution unit for terminating or switching to the standby mode according to the power saving policy.

In a preferred embodiment, the power saving policy includes a shutdown command or a standby mode switch command of the target client, and the power saving policy generator is configured to identify a client that has not changed the power consumption data for a predetermined time among the clients. Select the target client, generate the standby mode switch command for the target client, and issue the shutdown command to a client that has not changed the power consumption data for a predetermined time among the target clients that have received the standby mode switch command; Create

In a preferred embodiment, the power management central server further includes a power saving calculation unit for generating the power saving data by calculating the power savings according to the power saving policy.

In a preferred embodiment, the power management central server using the power consumption counting unit to generate the daily, monthly or yearly power consumption data of the client by aggregating the power consumption data and using the daily, monthly or yearly power consumption data The apparatus may further include a power consumption predictor configured to generate daily, monthly or yearly predicted power consumption data, which is a predicted amount of power to be used by the clients in the future.

In a preferred embodiment, the power management central server further includes a report generator for generating a power usage and prediction report file recorded with the power usage data, the predicted power usage data or the reduced power data.

In a preferred embodiment, the power saving calculation unit further calculates the amount of wood used to purify the carbon emissions reduced amount of carbon emissions according to the reduced power and the carbon emissions reduced according to the reduced power with oxygen, reducing carbon emissions And further generate tree usage data, and the report generator generates a power usage and prediction report file further recording the carbon emission reduction and tree usage data.

In a preferred embodiment, the client is a computing device, the power measuring unit of the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen and the motherboard of the computing device The amount of power consumed by one or more is measured to generate the used power data.

In a preferred embodiment, the power measurement unit is measured by the power sensor included in the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen or motherboard of the computing device. The power amount is read and generated as the used power data.

In addition, the power consumption measuring unit reads the model number of the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen or motherboard of the computing device and consumes according to the model number. The amount of power used may be derived and generated as the used power data.

In addition, the present invention is a power management method for reducing the power usage of a plurality of clients by using a single power management central server, the power management central server inputs the use power data from each client Receiving step, the power management central server analyzes the input power data, selecting a target client of the power saving target among the clients, generating a power saving policy for the target client, the power management A central server provides a power management method comprising the step of transmitting the power saving policy to a target client and the target client to perform the power saving policy.

In a preferred embodiment, the power saving policy includes a shutdown command or a standby mode switching command, and the generating of the power saving policy may be performed on a client that does not change the power consumption data for a predetermined time among the clients. By selecting the client, a standby mode switch command is generated for the target client, and a shutdown command is generated for a client that has not changed the power consumption data for a predetermined time among the target clients that have received the standby mode switch command.

In a preferred embodiment, after the step of performing the power saving policy, the power management central server further comprises the step of generating the power saving data by calculating the reduced power saving according to the power saving policy.

In a preferred embodiment, after the step of receiving the use power data, the power management central server aggregates the use power data to generate daily, monthly or yearly power consumption data of the clients, the power consumption data Generating daily, monthly or yearly predicted power consumption data, which are predicted amounts of power each client will use in the future.

In a preferred embodiment, after generating the power saving data, the power management central server generates a power usage and prediction report file in which the power usage data, the estimated power usage data, or the power saving data is recorded. It further includes.

In a preferred embodiment, after generating the power saving data, the power management central server uses the amount of wood used to purify the carbon emission savings and the reduced carbon emissions with oxygen according to the reduction power. The method further includes calculating carbon emission reduction and tree usage data.

In a preferred embodiment, after the step of generating the carbon emission reduction and tree usage data, the power management central server, the power consumption data, the estimated power consumption data, the power saving data or the carbon emission reduction and tree usage And generating a power usage and prediction report file in which the data is recorded.

In addition, in order to achieve the above object, the present invention is installed on a plurality of clients, respectively, and read by a computer that records a power management program including a power consumption measurement unit for generating a power consumption data by measuring the amount of power used by each client Provides a medium that can be.

In a preferred embodiment, the power management program is installed in a central power management server connected to each of the clients, receives the power consumption data to select a target client of the power saving target among the clients, the target The apparatus further includes a power saving policy unit for generating a power saving policy for the client.

In a preferred embodiment, the power consumption measuring unit is downloaded and installed from the power management central server to each of the clients.

In a preferred embodiment, the power saving policy includes a shutdown command or a standby mode switch command of the target client, and the power saving policy generator is configured to identify a client that has not changed the power consumption data for a predetermined time among the clients. The target client is selected, the standby mode switch command is generated for the target client, and among the target clients that have received the standby mode switch command, the client does not change the power consumption data for a predetermined time. Create

In a preferred embodiment, the power management program includes a power saving calculation unit for generating the power saving data by calculating the power savings in accordance with the power saving policy.

In a preferred embodiment, the power management program using the power consumption counting unit for generating the daily, monthly or yearly power consumption data of the client by aggregating the power consumption data and the daily, monthly or yearly power consumption data, The apparatus further includes a power consumption predictor configured to generate daily, monthly or yearly predicted power consumption data, which is a predicted amount of power to be used by the clients in the future.

In a preferred embodiment, the power management program further includes a report generation unit for generating a power usage and prediction report file in which the power consumption data, the predicted power usage data or the reduced power data is recorded.

In a preferred embodiment, the power saving calculation unit further calculates the amount of wood used to purify the carbon emissions reduced amount of carbon emissions according to the reduced power and the carbon emissions reduced according to the reduced power with oxygen, reducing carbon emissions And further generate tree usage data, and the report generator generates a power usage and prediction report file further recording the carbon emission reduction and tree usage data.

In a preferred embodiment, the client is a computing device, the power measuring unit of the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen and the motherboard of the computing device The amount of power consumed by one or more is measured to generate the used power data.

The present invention has the following excellent effects.

First, according to a computer-readable medium that records a power management system, a power management method, and a power management program of the present invention, a power saving policy is measured by measuring the power used by a plurality of clients using a single power management central server. Can be done.

In addition, according to the computer-readable medium that records the power management system, the power management method and the power management program of the present invention, since the power saving policy is established based on the change in the power used or the amount of power used, it is possible to use the input device in the prior art. As a result, the power usage can be reduced more efficiently than the power saving method.

In addition, according to the computer-readable medium that records the power management system, power management method and power management program of the present invention, the target client that is the target of power saving among the clients is selected to selectively save power to the target client. Policy can be enforced.

Further, according to the computer-readable medium that records the power management system, the power management method and the power management program of the present invention, it is possible to generate and provide predictive power data to be used in the future by aggregating the used power data used by the clients. Can make efficient power plan

In addition, according to the computer-readable medium recording the power management system, power management method and power management program of the present invention, power consumption data, predicted power consumption data, power saving data, cost saving data, tree planting data or carbon emissions Power usage and forecast report files that record savings and tree usage data are provided, so you can see the effects of the power saving policy at a glance.

In addition, according to the computer-readable medium that records the power management system, power management method and power management program of the present invention to obtain carbon emission rights, which is a right to emit carbon dioxide by reducing carbon emission and generating wood usage data. Can be provided as data.

The terms used in the present invention were selected as general terms as widely used as possible, but in some cases, the terms arbitrarily selected by the applicant are included. In this case, the meanings described or used in the detailed description of the present invention are considered, rather than simply the names of the terms. The meaning should be grasped.

Hereinafter, with reference to the accompanying drawings and preferred embodiments will be described in detail the technical configuration of the present invention.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

1 is a view showing a power management system according to an embodiment of the present invention, Figure 2 is a block diagram of a power management system according to an embodiment of the present invention.

Referring to the drawings, the power management system 100 according to an embodiment of the present invention includes a plurality of clients 110 and a power management central server 120 connected to each of the clients 110 and the communication network 10. It is made to include.

In addition, in one embodiment of the present invention, each of the client 110 and the power management central server 120 is connected by using the Internet network (10).

However, the communication network 10 may be various communication networks capable of data transmission.

In addition, each client 110 includes a power consumption measuring unit 111, a power saving policy execution unit 112 and a client communication unit 113, the power management central server 120 is a server communication unit 121, Used power data storage unit 122, the power saving policy generation unit 123, power saving calculation unit 124, power consumption calculation unit 125, power consumption prediction unit 126 and report generation unit 127 do.

The power usage measuring unit 111 generates power power data by measuring the amount of power used by the client 110.

In addition, the power consumption measuring unit 111 may be any one or more of a monitor, a CPU, a RAM, a hard disk, a CD-ROM, a graphics card, a sound card, a network card, a USB device, a cooling pen, and a main board constituting the client 110. The power consumption data is generated by measuring the amount of power consumed by the.

For example, the power measuring unit 111 may include a power sensor (not shown) included in the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen, or main board. Read the amount of power measured in the) to generate the used power data.

In addition, the power consumption measuring unit 111 reads the model number of the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen or motherboard of the computing device, The amount of power consumed according to the model number may be derived and generated as the used power data.

In more detail, the used power measurement unit 111 retrieves a database (not shown) in which the amount of power consumed according to the model number is derived and derives the amount of power consumed according to the model number.

That is, the client 110 is a computing device, and the used power measuring unit 111 measures the amount of power used by the hardware constituting the computing device.

However, the power consumption data is the sum of the power consumption of the monitor 110, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen and the motherboard of the client 110, respectively. Can be generated as data.

The power saving policy execution unit 112 performs a power saving policy transmitted from the power management central server 120 to be described below.

A detailed description will be made in the description of the power management central server 120.

The client communication unit 113 transmits the used power data generated by the used power measuring unit 111 to the power management central server 120 through the communication network 10.

The server communication unit 121 is connected to the client communication unit 113 by using the communication network 10 and receives the used power data.

The used power data storage unit 122 stores the used power data input to the server communication unit 121 in the power usage database 128.

The power saving policy generation unit 123 analyzes the used power data stored in the power usage database 128, selects a target client to be a target of power saving among the clients 110, and provides the target client with respect to the target client. Create a power saving policy.

In more detail, the power saving policy generation unit 123 generates a power saving policy including a termination command or a standby mode switching command of the target client, and performs the power saving policy execution unit through the server communication unit 121 ( 112).

That is, the power saving policy execution unit 112 provided to each target client receives the termination command or the standby mode switching command generated by the power saving policy generation unit 123, and terminates the target client or the standby mode. Switching to reduce the power used by the target client.

In addition, the power saving policy generation unit 123 selects a client having no change in the used power data for a predetermined time among the clients 110 as the target client.

More specifically, the clients that have power used but do not change the used power data are selected as the target clients.

However, the target clients may be selected as clients whose power used among the clients 110 is equal to or less than a predetermined power.

That is, compared to the conventional power saving method based on the input of the input device, the present invention can perform power saving efficiently by realizing power saving based on the power change or the size of the used power amount.

In addition, the power saving policy generation unit 123 generates the standby mode switching command for the target clients, the client that has not changed the power consumption data for a predetermined time among the target clients received the standby mode switching command Generate the shutdown command for.

However, the standby mode switch command and the shutdown command may be generated based on the amount of power used by the clients.

The power saving calculation unit 124 generates power saving data by calculating power savings, which are power savings according to the power saving policy.

For example, the power saving calculator 124 may calculate the power saving by multiplying the amount of power used before the power saving policy is performed by the target client when the target client enters or ends the standby mode.

In addition, the power saving calculation unit 124 calculates the amount of carbon used to reduce the amount of carbon emissions, which are carbon emissions reduced according to the power saving and the carbon emissions reduced according to the power saving, to reduce the carbon emissions, Generate more tree usage data.

For example, the carbon emission savings are calculated based on less 424 g of carbon dioxide generated per [kwh] of power savings, and the tree usage is estimated to be 0.36 trees consumed to purify 1 kg of carbon dioxide. Calculated based on

However, the tree usage may be the amount of tree planting planted as much as the amount of carbon dioxide emission is reduced, and the tree usage data may be generated as tree planting data.

That is, the power saving calculation unit 124 may provide data for obtaining a carbon emission right, which is a right to emit carbon dioxide according to the Kyoto Protocol concluded in the Climate Change Convention in Kyoto, Japan in December 1997.

In addition, the reduced power calculation unit 124 may further generate the reduced cost data by further calculating the reduced cost according to the reduced power.

The power usage counting unit 125 aggregates the used power data to generate daily, monthly or yearly power usage data which is the accumulated power usage used by the clients 110.

In addition, the power usage counting unit 125 may generate daily, monthly or yearly power consumption data used for each client 110.

The power consumption predicting unit 126 uses the daily, monthly or yearly power consumption data to predict daily, monthly or yearly power consumption which is the predicted power consumption to be used by the clients 110 or the respective clients 110 in the future. Generate data.

That is, the power usage predicting unit 126 allows the administrator to establish a power usage plan in the future.

For example, the manager may use the daily, monthly or yearly predicted power consumption data to establish a power usage plan such as a power use contract with a power supplier.

Accordingly, the power consumption predicting unit 126 may allow the manager to make an efficient power use contract with the power supplier by providing the predicted power consumption data to be used in the future.

The report generator 127 generates a power usage and prediction report file that records the power consumption data, the predicted power usage data, the power saving data, or the carbon emission reduction and tree usage data.

In addition, the savings cost data may be further recorded in the prediction report file, and the tree planting data may be further recorded.

Therefore, the power management system 100 according to an embodiment of the present invention can confirm at a glance the effects of savings cost, carbon emission reduction amount and tree planting amount according to the power reduction policy.

On the other hand, the components of the client 110 and the power management central server 120 are substantially programmed as a power management program to perform the respective functions of the client 110 and the power management central server 120 It is installed in).

In addition, the power management program is stored in a computer-readable recording medium and installed by reading each of the client 110 and the power management central server 120.

However, the power management program may be installed by being transmitted to each client 110 and the power management central server 120 through the communication network 10, and stored in the power management central server 120 to store each of the clients. It may be installed by being transmitted to 110.

In addition, the components of the client 110 and the power management central server 120 may be installed in each of the client 110 and the power management central server 120 as a separate hardware device, of course. .

3 is a flowchart of a power management method according to another embodiment of the present invention.

Hereinafter, a description of substantially the same components as the power management system according to an embodiment of the present invention will be omitted and the same reference numerals will be referred.

Referring to FIG. 3, a power management method according to another embodiment of the present invention is a power management method for reducing power usage of a plurality of clients 110 using one power management central server 120. The power management central server 120 receives the used power data used by each client 110 from each client 110 (S1000).

Next, the power management central server 120 analyzes the used power data to select a target client to be the target of power saving among the clients (S2000).

Next, the power management central server 120 generates a power saving policy to be performed by the target client (S3000), and transmits the generated power saving policy to the target client (S4000).

Herein, the power saving policy may include a termination command or a standby mode switching command of the target client.

In addition, the power management central server 120 generates a standby mode switch command for the client that does not change the power consumption data for a certain time of each of the clients, and a predetermined time among the target clients received the standby mode switch command While generating a termination command for the client that has not changed the power consumption data.

However, the target client may be selected for clients whose power is less than or equal to a predetermined power.

That is, compared to the conventional power saving method based on the input of the input device, the present invention can perform the power saving efficiently by realizing the power saving based on the power change or the size of the power used.

Meanwhile, the power management central server 120 generates daily, monthly or yearly power consumption data of the clients 110 using the used power data (S2100), and uses the power consumption data to generate the respective clients. 110 generates the daily, monthly, or annually predicted power consumption data, which is the amount of power to be used in the future (S2200).

In addition, the step of generating the daily, monthly or yearly power consumption data and the daily, monthly or yearly predicted power consumption data (S2100, S2200) is the step of receiving power usage data by the power management central server 120 (S1000). Is sufficient after that.

Next, the client receiving the power saving policy performs the power saving policy (S5000).

Next, the power management central server 120 calculates the reduced power saving according to the power saving policy to generate power saving data (S6000).

Next, the power management central server 120 calculates the amount of carbon used to purify the carbon emission reduction amount and the reduced carbon emission amount by oxygen using the reduced power data, and the carbon emission amount by purifying carbon emissions. Save and generate tree usage data (S7000).

Accordingly, according to another embodiment of the present invention, it is possible to provide data for obtaining a carbon emission right, which is a right to emit carbon dioxide according to the Kyoto Protocol concluded in the Climate Change Convention in Kyoto, Japan in December 1997.

Next, the power management central server 120 generates a power usage and prediction report file that records the power usage data, the predicted power usage data, the power saving data or the carbon emission reduction and tree usage data (S8000).

Therefore, the manager can check the effect of the power saving policy at a glance.

As described above, the present invention has been illustrated and described with reference to preferred embodiments, but is not limited to the above-described embodiments, and is provided to those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.

1 is a view showing a power management system according to an embodiment of the present invention,

2 is a block diagram of a power management system according to an embodiment of the present invention,

3 is a flowchart of a power management method according to another embodiment of the present invention.

In the drawings according to the present invention, the same reference numerals are used for components having substantially the same configuration and function.

<Description of the symbols for the main parts of the drawings>

100: power management system 110: client

111: power measurement unit 112: power saving policy execution unit

113: client communication unit 120: power management central server

121: server communication unit 122: used power data storage unit

123: power saving policy generation unit 124: power saving calculation unit

125: power consumption counting unit 126: power consumption prediction unit

127: report generation unit 128: power consumption database

Claims (30)

A plurality of clients that are computing devices; And Includes; Power management central server connected to the clients, Each client above: Measuring the amount of power consumed by any one or more of the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen, and motherboard included in each client to generate the power consumption data Power measurement unit; And And a power saving policy execution unit configured to perform a power saving policy generated by the power management central server. The power management central server: A power saving policy generator configured to analyze the used power data to generate the power saving policy; And And a power saving calculator configured to generate power saving data by calculating power savings according to the power saving policy.  The power saving policy is a termination command or a standby mode switching command for a target client which is a target of power saving among the clients, The power saving policy generation unit selects a client which does not change the used power data for a predetermined time among the clients as the target client, and generates the standby mode switch command for the target client. The power management system, characterized in that for generating a termination command for the client that has not changed the power consumption data for a predetermined time among the target clients received the standby mode switch command. delete delete The method of claim 1, The power management central server: A power usage counting unit configured to generate daily, monthly or yearly power consumption data of the clients by counting the used power data; And And a power consumption predictor configured to generate daily, monthly or yearly predicted power consumption data, which is a predicted amount of power to be used by the clients in the future by using the daily, monthly or yearly power consumption data. The method of claim 4, wherein The power management central server further includes a report generation unit for generating a power usage and prediction report file in which the power consumption data, the predicted power consumption data or the reduced power data is recorded. delete delete The method of claim 5, The power consumption measuring unit may be measured by a power sensor included in the monitor, the CPU, the RAM, the hard disk, the CD-ROM, the graphics card, the sound card, the network card, the USB device, the cooling pen, or the main board. The power management system, characterized in that for generating the used power data by reading the amount of power. The method of claim 5, The power consumption measuring unit reads the model number of the monitor, the CPU, the RAM, the hard disk, the CD-ROM, the graphics card, the sound card, the network card, the USB device, the cooling pen, or the main board. Deriving the amount of power consumed according to the model number, characterized in that the power management system characterized in that to generate the used power data. As a power management method using a single power management central server to reduce the power usage of a plurality of clients, which are computing devices, Receiving power usage data from each of the clients by the power management central server; Analyzing, by the power management central server, the input power data, selecting a target client to be a power saving target among the clients, and generating a power saving policy for the target client; Transmitting, by the power management central server, the power saving policy to a target client; Executing, by the target client, the power saving policy; And And generating, by the power management central server, power saving data by calculating power savings according to the power saving policy. The power consumption data is generated by measuring the amount of power consumed by any one or more of the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen and the motherboard of each client, The power saving policy includes a shutdown command or a standby mode switch command of the target client, The generating of the power saving policy may include selecting a client which does not change the used power data for a predetermined time among the clients as a target client, and generating a standby mode switching command for the target client. And generating a termination command for a client which has not changed the used power data for a predetermined time among the target clients that have received the standby mode switch command. delete delete The method of claim 10, The power consumption data is generated by reading the amount of power measured by the power sensor included in the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen or motherboard of the computing device. Power management method, characterized in that. The method of claim 10, The power consumption data is the amount of power consumed according to the model number by reading the model number of the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen or motherboard of the computing device. Power management method characterized in that it is generated by deriving. delete The method according to claim 10, 13 or 14, After receiving the used power data, The power management central server aggregates the used power data to generate daily, monthly or yearly power consumption data of the clients, and uses the power usage data to predict daily, monthly or The power management method, characterized in that it further comprises the step of generating annual power consumption data. The method of claim 16, After generating the power saving data, And generating, by the power management central server, a power usage and prediction report file in which the power consumption data, the predicted power consumption data, or the reduced power data is recorded. delete delete A power usage measurer installed in each of a plurality of clients as computing devices and generating power power data by measuring the amount of power used by each client; Installed in the central power management server connected to each of the clients, receives the power consumption data to select a target client of the power saving target among the clients, power saving policy for generating a power saving policy for the target client The policy department; And And a power saving calculator configured to generate power saving data by calculating power savings according to the power saving policy. The power consumption measuring unit measures the amount of power consumed by at least one of a monitor, a CPU, a RAM, a hard disk, a CD-ROM, a graphics card, a sound card, a network card, a USB device, a cooling pen, and a motherboard of the computing device. Create data, The power saving policy includes a shutdown command or a standby mode switch command of the target client, The power saving policy generation unit selects a client which does not change the used power data for a predetermined time among the clients as the target client, and generates the standby mode switch command for the target client. And generating a termination command for a client which has not changed the used power data for a predetermined time among the target clients that have received the standby mode switch command. delete The method of claim 20, The power usage measuring unit is a computer-readable medium recording a power management program, characterized in that the download is installed from the power management central server to each client. delete delete The method of claim 22, A power usage counting unit configured to generate daily, monthly or yearly power consumption data of the clients by counting the used power data; And And a power consumption predictor configured to generate daily, monthly or yearly predicted power consumption data, which is a predicted power amount to be used by the clients in the future by using the daily, monthly or yearly power consumption data. Computer-readable media that records the program. The method of claim 25, And a report generator for generating a power usage and prediction report file in which the power consumption data, the predicted power consumption data, or the reduced power data are recorded. delete delete The method of claim 26, The power measuring unit reads the amount of power measured by the power sensor included in the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen or motherboard of the computing device. A computer-readable medium having recorded therein a power management program, the power management program being generated as power data. The method of claim 26, The power consumption measuring unit reads the model number of the monitor, CPU, RAM, hard disk, CD-ROM, graphics card, sound card, network card, USB device, cooling pen or motherboard of the computing device and consumes power according to the model number. And a power management program recording the power management program.

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