KR20090029998A - Apparatus and method for managementing policy of policy-based management framework - Google Patents

Abstract

A method and an apparatus for reducing power consumption of a home network apparatus based on a network protocol are provided to enable the home network apparatuses to automatically operate at a power saving mode while maintaining service connectivity without manual setting of a user, thereby maximally reducing power consumption due to an increasing number of home network apparatuses. A home network apparatus based on a network protocol comprises a system power control processing module(100), a system standby mode determining module(200), and a network protocol agent control module(300). The system power control processing module controls power of the home network apparatus by converting the home network apparatus into a standby state. The system standby mode determining module analyzes a network packet from a network interface. When a user packet or a user service does not exist, the system standby mode determining module determines a standby mode converting time point of the home network apparatus. And the system standby mode determining module notifies the system power control processing module of the standby mode converting time point.

Description

Method and device for reducing power consumption of home network devices based on network protocols {Apparatus and Method for Management Policy of Policy-Based Management Framework}

The present invention relates to a method and apparatus for reducing power consumption of a home network device based on a network protocol. In particular, when a user does not use the home network device based on a network protocol, user setting information and a running service are provided. The present invention relates to a method and apparatus for reducing power consumption of a home network device based on a network protocol for minimizing power consumption by analyzing state, network traffic information, and switching to standby mode.

The present invention is derived from the research conducted as part of the IT new growth engine core technology development project of the Ministry of Information and Communication and the Ministry of Information and Communication Research and Development. [Task Management Number: 2007-S-009-01, Title: Always-On Home Network System Technology development of low power consumption platform].

With the rapid spread of subscriber networks and the development of home network services, the types and use of home network devices in the homes are increasing. As a result, the proportion of home network devices in the power consumption of each home is increasing.

In addition, in order to prepare for high oil prices and environmental pollution, the importance of energy saving is rising nationwide, and energy-saving technologies are actively being developed throughout the industry.

In particular, with the development of information and communication technology, various information communication devices are being used, and the proportion of their power consumption is increasing. In order to prepare for this, many studies for saving energy are being conducted on information and communication devices such as monitors, printers, personal computers, and mobile phones.

Devices used in mobile environments such as mobile phones and notebook computers are applying various power saving technologies for LCD screens and batteries.In the case of personal computers, power saving technologies that have been independently developed for each component are being integrated into ACPI company standards. . All of these technologies minimize power consumption by putting the device into standby while the part is not in use or reducing the device's performance. In other words, the power applied to the component is redundantly supplied when the standby state is supplied, or the main clock is lowered to operate the component at low performance.

In addition, these power saving functions are set when most users are set or when personal user input does not occur for a specified time.

However, such power saving functions are developed by simply deactivating a specific function if a user does not generate an input condition for a specific period of time, and thus, a personal computer, laptop, mobile phone, printer, etc. having a strong personality than a home network device is used. Applied mainly on equipment. In addition, the power saving techniques that do not consider home network services have a limitation that prevents network related services from being performed during a power saving function when applied to a home network environment.

In other words, in the home network environment, users or services are continuously generated, and it is difficult to call a standby mode collectively because several members use the service in the home, and a specific user arbitrarily selects a power source of public equipment such as a home server or a home gateway. Is difficult to block or set to standby mode.

Therefore, in a home network environment, a technology for automatically switching a standby mode for a home network device is essential in consideration of both network traffic, a service, and a user environment.

An object of the present invention for solving the above problems is a method for reducing power consumption of a home network device based on a network protocol for implementing a power consumption-saving home network device in consideration of network traffic, service and user environment in a home network environment; To provide the device.

A home network device based on a network protocol according to an embodiment of the present invention for achieving the above object is a system power control process for extracting, storing, and restoring a system context and controlling power to the home network device in a standby state. module; The system power control is performed by extracting network configuration information and session information from network and application services and analyzing network packets from a network interface to determine when to switch the standby mode of the corresponding home network device when a user packet or a service is not present. A system standby mode determining module informing the processing module; Provides network packets collected from a network interface to the system standby mode determination module, and generates and deletes control information to ensure network and service connectivity for a network protocol agent based on the network configuration information and session information in a standby state. And a network protocol agent control module for changing.

The system power control processing module may include a processor context detector configured to extract context information based on process configuration and state information of an operating system, a network, and an application service; A hardware context detector for extracting hardware configuration information from devices in the home network device; A system context storage unit configured to extract a system context required for the standby mode conversion from the processor and the hardware context and to store corresponding information in a storage medium; And a standby mode activation control unit for activating the standby mode by operating the network protocol agent in an active state when the home network device is determined to switch to the standby mode through the system standby mode determination module.

When the user profile information is set by the user, the system standby mode determining module determines a time to switch the standby mode according to a predetermined time elapsed by the user or a preset elapsed time when no user input is generated by using a timer method. It features.

The system standby mode determination module may include: a network configuration information extraction unit configured to extract network configuration information from a network protocol stack and provide the same to the network protocol control module; A network session information extracting unit extracting session information currently connected from a network and an application service and providing the same to the network protocol control module, and extracting service information currently being used to determine a standby mode; If the network packet collected from the network protocol control module and the session information, the current service information or the user profile is grasped, the user packet is not transmitted, the user service is not performed, or the user for a set elapsed time. And a standby mode determination unit determining a standby mode switching time when the input and service use are not generated and informing the system power control processing module.

The system standby mode determination module, when the user packet is not transmitted and only the control packet is transmitted as a result of analyzing the network packet collected through the network protocol agent control module, updates the user packet non-transmission log and extracts the extracted packet. And if it is determined that the current session is in the standby state from the session information and the updated user packet non-transmission log, notifying the system power control processing module of the standby mode change.

The system standby mode determination module updates the service non-execution log when a list of application services currently being performed by the user is not detected as a result of analyzing the service information currently being performed, and the service is performed according to the updated service non-execution log. If it is determined that the standby state is characterized in that notifying the system power control processing module to switch the standby mode.

When the timer of the preset time is set according to a user designation as a result of analyzing the user profile, the system standby mode determination module displays a user input and a service usage state at the time when the timer expires after operating the timer. Check and update the information of the corresponding user; and if the user is determined to be in the standby state from the updated user information, notifying the system power control processing module of the standby mode change.

The network protocol agent control module may include: a network traffic characteristic detection unit configured to extract a control packet and a user packet by analyzing network packets collected from a network interface; An agent control information analyzer configured to analyze and extract agent control information data based on network configuration information, session information and the network packet collected by the system standby mode determination module; And an agent control information updater configured to manage control information data added, deleted, and changed based on the agent control information data extracted from the agent control information analyzer.

According to another embodiment of the present invention for achieving the above object, a method for reducing power consumption of a home network device based on a network protocol may include: setting protocol agent control information when switching from a physical off state to a hard boot state; Analyzing a network packet, network configuration information, and session information according to a preset period when the application enters a system operation state in which an application program is performed, and updating the protocol agent control information based on the analysis; Determining to switch to standby mode when it is determined that there is no user packet or use service in the system operating state, storing a system context, activating a protocol agent in an active state, and entering the standby mode; And a soft booting step of recovering the context, converting the protocol agent to a passive state, and converting the standby mode to an operational state when a user data and service use request is input during the standby mode.

In the system operation state, if it is determined that the user packet and the service are not present, the determining of the standby mode switching may include determining that the user packet is not transmitted and only a control packet is transmitted as a result of analyzing the network packet. Updating the unsent log; Updating a service non-execution log when a list of application services currently performed by a user is not detected as a result of analyzing service information from the application service; And determining the standby mode switch when the session and the service are determined to be in the standby state according to the user packet non-transmission log or the service non-performance log.

Preferably, the method for reducing power consumption of a home network device based on the network protocol comprises: operating a timer when a timer having a preset time is set according to a user designation as a result of analyzing a user profile in the system operation state; ; Checking the user input and the service usage status at the time when the timer expires and updating the information of the corresponding user; The method may further include determining a standby mode switch when the corresponding user is determined to be in the standby state from the updated user information.

The soft booting step of converting the standby mode into an operating state is characterized by switching to a system operating state without undergoing a hard booting state.

The method and apparatus for reducing power consumption of a home network device based on the network protocol according to the present invention as described above, analyzes the home network service and the packet, and standbys the device for a period during which the various users in the home are not actually used. If it is necessary to send / receive the real user packet instead of the control packet, it returns to the normal mode, so that the home network devices in the long run automatically operate the power saving mode while maintaining the service connection without manual setting of the user. It has the effect of minimizing the power consumption caused by the rapidly increasing home network devices.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

1 is a diagram illustrating a general hardware configuration of a home network device to which the present invention is applied.

Referring to FIG. 1, a typical home network device includes a device module controller, a main memory controller 11, a context storage unit 12, a central processing unit 14, a power control module 15, a network protocol agent 16, and the like. It may be configured to include a network interface 17, each of the components to operate in conjunction with the power system bus.

Here, the CPU 14 performs a function of controlling each component based on the CPU, and the device module controller, the main memory controller 11 and the network interface 17 are included in general computing devices. Element controls each device and memory and performs interface function with network.

Meanwhile, the power control module 15, the context storage unit 12, and the network protocol agent 16 are hardware components that must be additionally configured for the present invention to be applied. Among these, the power control module 15 is a module for configuring and controlling a power circuit for a plurality of hardware components constituting a home network device. In the standby state, the power control module 15 supplies power to most circuits except the network protocol agent 16. It performs the function of blocking.

In addition, the context storage unit 12 is a module for storing a context such as hardware that was normally performed when the device was normally operated, various environment variables used for executing software, stack information, a program execution position, and a hardware register setting value in a nonvolatile medium. This may include a hard disk drive, a flash memory, or a memory in a refresh power supply state. The context storage unit 12 maintains the quality of service by reducing the switching time required by the booting procedure performed when the home network device recovers from the standby state to the normal state.

Finally, the network protocol agent 16 is a module that processes network control messages necessary to maintain service connectivity when the home network device switches to the standby mode, or processes a normal mode switch request input for each device. In addition to the function to determine the performance.

Meanwhile, the present invention controls the above-described components to operate the home network device in the normal mode, or to save the context and switch to the standby mode in order to minimize the power consumption when the home network device is not actually used, the network The protocol agent 16 is controlled to operate.

2 is a block diagram showing a home network device according to an embodiment of the present invention.

Referring to FIG. 2, in the home network device according to the present invention, three key control modules of the system power control module 100, the system standby mode determination module 200, and the network protocol agent control module 300 may include a context storage unit 12. ), The power control unit, the network protocol agent 16, the network interface 17, such as device components, operating systems, networks and application services can be configured to interoperate with each other.

Here, the core control module of the system power control module 100, the system standby mode determination module 200, and the network protocol agent control module 300 may be implemented in the form of a device driver of a corresponding home network device.

Referring to each core control module in such a home network device, first, the system power control processing module 100 is a module that performs a function necessary for switching between a standby mode and a normal mode, and is matched with an operating system 20 to determine a corresponding device. It performs a function of turning on or off the power or extracting necessary context information, and controls the power control module 15 to actually manage power of each device hardware of the device. In addition, the system power control processing module 100 performs a function of storing context information necessary for mode switching in the context storage unit 12.

The system standby mode determination module 200 is a module that determines when the corresponding home network device should switch to the standby mode. The system standby mode determination module 200 analyzes network-related service and user application service performance information currently being executed from the network and application service 30. It monitors the list of services being used by the real user, and detects and analyzes network-related packets from the network interface 17 to determine whether only the control packet is transmitted, not the real user packet.

In addition, the system standby mode determination module 200 determines from the analyzed information to switch the home network device to the standby mode during a period in which the user does not actually use the device.

The network protocol agent control module 300 plays a role of a device driver of the network protocol agent 16 and builds control packet generation information required for performing the network protocol agent 16 function in the standby mode. To this end, the network protocol agent control module 300 analyzes network configuration information and network-related application service information of the corresponding home network device and performs a function of constructing control packet generation table data.

Next, the configuration operation of each core control module of the home network device which performs such a function will be described in more detail with reference to the accompanying drawings.

3 is a block diagram showing a system power control module of a home network device according to an embodiment of the present invention.

Referring to FIG. 3, the system power control module 100 that is in charge of a standby mode switching function in a home network device includes a processor context detector 110, a system context storage unit 120, a standby mode activation controller 130, and hardware. It may be configured to include a context detector 140.

In the system power control module 100 having such a configuration, the processor context detection unit 110 performs a function of extracting and analyzing context information of processes running from the operating system 20 and the network and application service 30. On the contrary, the hardware context detector 140 extracts register information values of devices installed in the home network device and analyzes context information necessary for normal mode recovery.

The system context storage unit 120 records the processor and hardware context values analyzed by the processor context detection unit 110 and the hardware context detection unit 140 in the context storage unit 12 that is a nonvolatile storage medium. Therefore, the relevant context values are used when switching from the standby mode to the normal mode.

In addition, the standby mode activation controller 130 operates the network protocol agent 16 that performs a service connectivity and an operation mode switching function in an active state when the home network device enters the standby mode.

4 is a block diagram illustrating a system standby mode determination module 200 of a home network device according to an embodiment of the present invention.

Referring to FIG. 4, the system standby mode determination module 200 of the home network device may include a network configuration information extractor 210, a network session information extractor 220, and a standby mode determiner 230. Can be.

In the system standby mode determination module 200, the network configuration information extractor 210 performs a function of extracting network configuration information from the network protocol stack 40. Here, the extracted network configuration information may be, for example, an IP address, a MAC address, routing information, etc. when the network is configured with the TCP / IP protocol.

The network session information extraction unit 220 performs a function of extracting network session information having connectivity from the network and the application service 30, and the extracted session information is a TCP session, an HTTP session, etc. from an end-to-end point of view of an application service. Values necessary for session setup between (End-To-End) are applicable. In addition, the network session information extractor 220 analyzes network related service and user application service performance information being performed from the network and application service 30 and provides the function to the standby mode determiner 230 described later.

Meanwhile, the network configuration information extractor 210 and the network session information extractor 220 provide the network configuration information and session information extracted by the network protocol agent control module 300 to each other.

The standby mode determiner 230 analyzes the usage history of the real user packet based on the session information extracted from the network and the application service and the network packet information collected through the network protocol agent control module 300 and according to the analysis result. It determines the case where only the control packet is used to determine the time to switch the standby mode of the device.

In addition, the standby mode determiner 230 analyzes network-related services and user application service performance information being performed from the network and the response service, and monitors a list of services currently used by real users, thereby determining a standby time switching time. To perform.

In addition, when the user profile 40 information is set by the user, the standby mode determiner 230 switches the standby mode according to a predetermined time elapsed by the user or a preset elapsed time in which the user input is not generated using the timer method. Determine the time point.

As described through the above configuration, the standby mode switching method of the standby mode determination module is largely performed according to network packet analysis, application service information analysis, and user profile analysis.

5 is a flowchart illustrating a standby mode switching method of a standby mode determining module in a home network device according to an exemplary embodiment of the present invention.

Referring to FIG. 5, in determining the standby mode switching time, the standby mode determining module first analyzes network packets collected through the network protocol agent control module 300 (S10) in switching the home network device to the standby mode. ), It is determined whether the user packet is transmitted (S11).

If it is determined that the standby mode determining module does not transmit the user packet and only the control packet is transmitted, the standby mode determining module updates the user packet non-transmission log (S12), and extracts the session information and the updated session information from the network and application services. If it is determined that the current session is in the standby state from the user packet non-transmission log (S13), the standby mode is switched (S40).

Next, as a result of analyzing the application service using the network related service and the user application service execution information (S20), the standby mode determination module does not detect a list of application services currently being performed by the real user (S21). The non-execution log is updated (S22). In addition, when it is determined that the service is in the standby state from the updated service non-execution log (S23), the standby mode determining module performs the standby mode switching (S40).

As a result of analyzing the user profile (S30), if it is determined that the timer of the preset time is set according to the user specification (S31), the standby mode determination module operates the timer first (S32).

In addition, the standby mode determining module checks the user input and service use status at the time when the operated timer expires, updates the information of the corresponding user (S33), and if the corresponding user is determined to be in the standby state from the updated user information ( S34) Perform the standby mode switching (S40).

6 is a block diagram showing a network protocol agent control module of a home network device according to an embodiment of the present invention.

Referring to FIG. 6, a network protocol agent control module 300 in a home network device may include an agent control information analyzer 310, an agent control information updater 320, and a network traffic characteristic detector 330. Can be.

Here, the network traffic characteristic detection unit 330 analyzes packets collected from the network interface 17 to extract information of control packets and user packets, and the agent control information analysis unit 310 determines a system standby mode. A function of analyzing the network configuration information and session information collected from the module 200 and the packet characteristics collected from the network traffic characteristic detection unit 330 and delivering the analyzed information to the agent control information update unit 320. To perform.

Accordingly, the agent control information updater 320 allows the information transmitted from the agent control information analyzer 310 to be set as data necessary for generating a control packet in the network protocol agent 16.

7 is a flowchart illustrating an operation method for reducing power consumption of a home network device according to an embodiment of the present invention.

Referring to FIG. 7, the home network device in the initial physical off state (S100) is switched to the hard boot state (S200) under user control. Here, the physical off state (S100) is a state in which the power supply of the network device is cut off and the operation is physically stopped.

In addition, the hard booting state (S200) is a step in which an initial booting process of a corresponding home network device is performed while sequentially performing a boot loader, an operating system, and the like, and loading various device drivers and setting a network interface 17. Basic control information such as network configuration information is set in the protocol agent, and the agent is in a passive operation state such as packet collection.

After that, the home network device enters the system operation state in which the application is executed (S300), and in this state, performs network traffic analysis for determining the standby mode and periodically updates control information on the protocol agent based on this. do.

If the home network device is a period in which the actual user data is not used as a result of periodic monitoring in the system operation state (S300), the system is changed to the standby state (S400), and for this purpose, the context is stored and the network protocol agent 16 ) To the active state to respond to the control packet. Here, the system standby state (S400) is controlled to the standby state in which the other modules except the agent does not consume power.

On the other hand, the home network device is changed to the soft boot state (S500) when there is an input for requesting user data or performing a specific function of the device while the network protocol agent 16 is performing, in this state the hard boot. Unlike the state (S200), it is possible to recover a pre-stored system context without going through a booting process and to support fast operation state conversion without deterioration of service quality.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art.

1 is a diagram showing a general hardware configuration of a home network device to which the present invention is applied;

2 is a block diagram showing a home network device according to an embodiment of the present invention;

3 is a block diagram showing a system power control module of a home network device according to an embodiment of the present invention;

4 is a block diagram showing a system standby mode determination module of a home network device according to an embodiment of the present invention;

5 is a flowchart illustrating a standby mode switching method of a standby mode determination module in a home network device according to an embodiment of the present invention;

6 is a block diagram showing a network protocol agent control module of a home network device according to an embodiment of the present invention; and

7 is a flowchart illustrating an operation method for reducing power consumption of a home network device according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100: system power control processing module 110: processor context detection unit

120: system context storage unit 130: standby mode activation control unit

140: hardware context detection unit 200: system standby mode determination module

210: network configuration information extraction unit 220: network session information extraction unit

230: standby mode determination unit

300: network protocol agent control module

310: agent control information analysis unit 320: agent control information update unit

330: network traffic characteristic detection unit

Claims (12)

A system power control processing module for extracting, storing, and restoring a system context and controlling power to the home network device in a standby state; The system power control is performed by extracting network configuration information and session information from network and application services and analyzing network packets from a network interface to determine when to switch the standby mode of the corresponding home network device when a user packet or a service is not present. A system standby mode determining module informing the processing module; And Provides network packets collected from a network interface to the system standby mode determination module, and generates and deletes control information to ensure network and service connectivity for a network protocol agent based on the network configuration information and session information in a standby state. And a network protocol agent control module for changing. The method of claim 1, The system power control processing module, A processor context detector configured to extract context information based on process configuration and state information of an operating system, a network, and an application service; A hardware context detector for extracting hardware configuration information from devices in the home network device; A system context storage unit configured to extract a system context required for the standby mode conversion from the processor and the hardware context and to store corresponding information in a storage medium; And When the standby mode switch time of the home network device is determined through the system standby mode determination module, the network protocol based, characterized in that it comprises a standby mode activation control unit for activating the standby mode by operating the network protocol agent in an active state Home network appliance. The method of claim 1, The system standby mode determination module, When the user profile information is set by the user, a timer protocol is used to determine the time to switch the standby mode according to a predetermined time from the user or a preset elapsed time in which no user input is generated. Home network device. The method of claim 1, The system standby mode determination module, A network configuration information extracting unit extracting network configuration information from a network protocol stack and providing the network configuration information to the network protocol control module; A network session information extracting unit extracting session information currently connected from a network and an application service and providing the same to the network protocol control module, and extracting service information currently being used to determine a standby mode; And If the network packet collected from the network protocol control module and the session information, the current service information or the user profile is grasped, the user packet is not transmitted, the user service is not performed, or the user for a set elapsed time. And a standby mode determination unit for determining a standby mode switching time point and informing the system power control processing module when an input and a service use have not occurred. The method of claim 4, wherein The system standby mode determination module, If a user packet is not transmitted and only a control packet is transmitted as a result of analyzing the network packet collected through the network protocol agent control module, the user packet non-transmission log is updated, and the extracted session information and the updated user packet are updated. And notifying the system power control processing module of the standby mode switch when it is determined that the current session is in the standby state from the untransmitted log. The method of claim 4, wherein The system standby mode determination module, After analyzing the current service information, if the user does not detect a list of application services currently being executed, the service non-execution log is updated. Home network device based on the network protocol, characterized in that to notify the system power control processing module. The method of claim 4, wherein The system standby mode determination module, After analyzing the user profile, if a timer with a preset time is set according to a user's designation, the user input and service use status are checked and the information of the user is updated after the timer is terminated after the timer is operated. And notifying the system power control processing module of a standby mode change when the corresponding user is determined to be in the standby state from the updated user information. The method of claim 1, The network protocol agent control module, A network traffic characteristic detection unit for analyzing a network packet collected from a network interface and extracting a control packet and a user packet; An agent control information analyzer configured to analyze and extract agent control information data based on network configuration information, session information and the network packet collected by the system standby mode determination module; And And an agent control information updater configured to manage control information data added, deleted, and changed based on the agent control information data extracted from the agent control information analyzer. Setting a protocol agent control information when switching from a physical off state to a hard boot state; Analyzing a network packet, network configuration information, and session information according to a predetermined period when the application enters a system operation state where an application program is performed; updating the protocol agent control information based on the analysis; Determining to switch to standby mode when it is determined that there is no user packet or use service in the system operating state, storing a system context, activating a protocol agent in an active state, and entering the standby mode; And In the standby mode, when the user data and service use request is input, the home network in the network protocol including a soft booting step of recovering the context, converting the protocol agent to a passive state, and then converting the standby mode to an operational state How to reduce power consumption of network devices. The method of claim 9, If it is determined that the user packet and the use service does not exist in the system operation state, the step of determining the standby mode switching, Updating a user packet non-transmission log when only a control packet is transmitted without transmitting a user packet as a result of analyzing the network packet; Updating a service non-execution log when a list of application services currently performed by a user is not detected as a result of analyzing service information from the application service; And And determining the standby mode switch when the session and the service are determined to be in the standby state according to the user packet non-transmission log or the service non-performance log. The method of claim 9, Operating a timer when a timer having a preset time is set according to a user designation as a result of analyzing the user profile in the system operation state; Checking the user input and the service usage status at the time when the timer expires and updating the information of the corresponding user; And And determining a standby mode change when the corresponding user is determined to be in the standby state from the updated user information. The method of claim 9, The soft booting step of converting the standby mode into an operating state may include: A method of reducing power consumption of a home network device based on a network protocol, characterized by switching to a system operation state without going through a hard boot state.

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