KR101331853B1 - Fault processing framework and method of home network system - Google Patents

Abstract

An error handling framework is provided for diagnosing and recovering from errors generated by multiple devices in a home network environment. The error handling framework determines an error occurrence area from one error message among a plurality of error messages received from a home network system, and collects error messages generated from one or more devices corresponding to the error occurrence area among a plurality of devices. And an error recovery module for recovering an error caused by an error message in at least one device based on a diagnosis result of the error diagnosis module and the error diagnosis module.

Description

Fault processing framework and method of home network system

The present invention relates to a home network technology, and more particularly, to an error processing framework of a home network system and a method for processing errors using the same, which can reduce the time for diagnosis and recovery of various errors occurring in a home network environment.

The present invention is derived from the research conducted as part of the IT growth engine technology development project of the Ministry of Knowledge Economy [Task management number: 2009-S-003-01, Task name: Middleware and security platform technology for the enhancement of IPTV function and service expansion Development].

As the home network technology is introduced and commercialized, a number of devices interworking with the home network and providing services are increasing.

As the number of such service devices increases, a plurality of devices interoperate with each other for one service, and for this purpose, a complex network structure having different physical media and communication protocols has emerged.

In this environment, a complex type of error occurs by forming a dependency between the entities constituting the home network. It also increases the likelihood that one error will lead to another, and it makes no sense to diagnose and repair only one phenomenon that caused a particular error.

In the conventional home network environment, the error diagnosis and recovery method is used to receive a message for each error that occurs and diagnose and recover individually. Since this method does not consider the environment of the home network in which the dependency is formed, accurate error diagnosis is difficult, and the number of diagnosis and recovery times for each error message is required.

An object of the present invention is to provide an error handling framework that can detect and recover a message about an error that may occur in a home network environment with minimal diagnosis.

Another object of the present invention is to provide an error handling method using such an error handling framework.

An error processing framework according to an embodiment of the present invention for solving the above problems, determines the error occurrence area from one error message of a plurality of error messages received from a home network system, and the error occurs among a plurality of devices An error diagnosis module for collecting and diagnosing error messages generated from one or more devices corresponding to a region, and an error recovery module for recovering errors caused by error messages on one or more devices based on a diagnosis result of the error diagnosis module. .

According to another aspect of the present invention, there is provided a method for processing an error, the method including determining an error occurrence area from one error message among a plurality of error messages received from a home network system. Collecting and diagnosing error messages generated from one or more devices corresponding to the determined error occurrence area among the devices, and recovering errors generated from one or more devices according to the diagnosis result.

The error handling framework of the home network system and the error handling method using the same define an error handling framework for error diagnosis and repair in the middleware of the home network system, and use an error handling framework to It is possible to reduce the error diagnosis and recovery time as a whole by finding and recovering the error message that can be generated by one diagnosis.

BRIEF DESCRIPTION OF THE DRAWINGS A brief description of each drawing is provided to more fully understand the drawings recited in the description of the invention.
1 is a schematic configuration diagram of a home network system according to the present invention.
FIG. 2 is a diagram illustrating an error processing framework illustrated in FIG. 1.
3 is a flowchart of an error processing operation of the error processing framework shown in FIG. 2.
4 is a diagram illustrating an example of a defined resource graph.
FIG. 5 is a flowchart illustrating a method of defining a resource graph in the RDG definition unit illustrated in FIG. 2.
6A and 6B are diagrams illustrating an example of a defined error message graph.
7A and 7B are diagrams illustrating an example of a defined dependency error graph.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the embodiments of the present invention, reference should be made to the accompanying drawings that illustrate embodiments of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a schematic configuration diagram of a home network system according to the present invention, and FIG. 2 is a configuration diagram of an error processing framework shown in FIG.

Referring to FIG. 1, the home network system 10 may be configured such that a plurality of devices 11 and 12 are connected to each other using a wired / wireless communication protocol.

For example, the plurality of devices 11, 12 of the home network system 10 may be devices such as a computer, video, TV, sensor, refrigerator, etc. that can provide services to a user.

The devices 11 and 12 may be configured as devices that exist in a physically independent form, or may be present as a service that is executed as an application in a device such as a computer.

Meanwhile, one of the plurality of devices 11 and 12, for example, a device such as a computer or a server may be defined as the host 11, and the host 11 may manage service support of the remaining devices 12. Middleware 13 may be mounted.

The middleware 13 may include a middleware manager 15 and an error handling framework 100.

The middleware manager 15 may include a service manager (not shown), a network manager (not shown), a resource manager (not shown), and a device manager (not shown).

In addition, the middleware manager 15 may further include a communication module, for example, a Lean Communication Broker (LCB) for receiving a message from the plurality of devices 12 and transmitting the message to the error processing framework 100.

The middleware manager 15 may manage the operations of the plurality of devices 12 constituting the home network system 10, and may also manage messages, such as errors (or messages) sent from each of the plurality of devices 12. Messages, including error messages).

The error processing framework 100 diagnoses various errors (or errors) generated in the home network system 10 based on the error message transmitted from the middleware manager 15 and recovers the errors generated according to the diagnosis result. can do.

In addition, the error processing framework 100 may diagnose one error occurring in the home network system 10, and may search for and diagnose all errors that may be derived and generated due to the one error.

The error handling framework 100 may be mounted in a device that connects the home and the outside in the middleware 13, which is used when the user diagnoses or recovers an error of the home network system 10 from a remote location. This is for the case of transmitting the internal error diagnosis and recovery status to the outside.

1 and 2, the error processing framework 100 may include an error receiving module 110, an error diagnosis module 120, and an error recovery module 130.

The error receiving module 110 may receive a message about an error generated in the home network system 10, that is, a plurality of error messages FM, among various messages transmitted from the middleware manager 15.

The error receiving module 110 may include a filter 111 and an error queue 113.

The filter 111 filters a plurality of error messages FM transmitted from the middleware manager 15 based on the detection error message DDF output from the error diagnosis module 120 to be described later, and filters the filtered error message. Can be sent to the queue 113.

In addition, the filter 111 may extract and delete an error message corresponding to the detection error message DFM from the plurality of error messages FM stored in the error queue 113.

The error queue 113 may store a plurality of error messages FM transmitted from the middleware manager 15 through the filter 111 and sequentially output the error messages FM to the error diagnosis module 120.

For example, the error queue 113 may output an error message first input and stored in the error diagnosis module 120 according to a first input first output (FIFO) scheme.

The error diagnosis module 120 analyzes one error message (hereinafter, referred to as a first error message FM1) output from the error queue 113 of the error receiving module 110, and according to the analysis result, the first error message ( It is possible to detect error messages for a number of errors derived from FM1).

The error diagnosis module 120 may output the detected error message to the filter 111 of the error receiving module 110 as a detection error message (DFM) or output the result of the diagnosis to the error recovery module 130. .

The error diagnosis module 120 may include a diagnosis unit 121 and a graph definition unit 125. The graph defining unit 125 may include a resource dependency graph (RDG) defining unit 126, an error message graph (FMG) defining unit 127, and a fault error graph (hereinafter referred to as FDG). ) May include a definition unit 128.

The diagnosis unit 121 may extract an error occurrence point from the first error message FM1 input from the error queue 113 based on a predefined error diagnosis rule DR.

Here, the error diagnosis rule DR defines a rule for performing a test on various error messages that may occur in the home network system 10, and the diagnosis unit 121 determines a first rule according to the error diagnosis rule DR. After testing the home network system 10 for the error message FM1, an error occurrence point can be detected.

In addition, the diagnosis unit 121 may provide information on the detected error occurrence point to the graph definition unit 125, and output a plurality of error messages output by the graph definition unit 125 based on the information on the error occurrence point. Can be collected to generate a detection error message (DFM).

In addition, the diagnosis unit 121 may diagnose the generated detection error message DFM to generate node information (or device information) NI having an error or generated error.

Here, the detection error message DFM may be transmitted to the filter 111 of the error reception module 110, and the node information NI may be transmitted to the error recovery module 130.

The graph defining unit 125 may output an error occurrence area and a plurality of error messages to be generated from the graph using various graphs defined based on information on an error occurrence point output from the diagnosis unit 121.

For example, the RDG defining unit 126 of the graph defining unit 125 generates an error in the home network system 10 from information about an error occurrence point output from the diagnosis unit 121 based on the stored resource graph RDG. The area can be determined.

Here, the RDG definition unit 126 may define and store a resource graph RDG from a resource map RM provided from the middleware manager 15.

The RDG defining unit 126 may define a resource graph RDG having a nonlinear tree structure as shown in FIG. 4, wherein each of the plurality of nodes forming the tree structure is the home network system 10. It may be a plurality of devices (11, 12), for example, a switch, a host, a service, and the like.

The resource graph (RDG) definition method of the RDG definition unit 126 will be described in detail later with reference to FIG. 5.

The RDG definition unit 126 may determine the error occurrence area from the error occurrence point information by using the defined resource graph RDG.

For example, referring to FIGS. 2 and 4, the diagnosis unit 121 may perform the first switch S1 and the second in the home network system 10 from the first error message FM1 based on the error diagnosis rule DR. The link between the switches S2 may be output as information on an error occurrence point.

The RDG defining unit 126 converts a subtree composed of a plurality of nodes dependent on the first switch S1 from the resource graph RDG into an error occurrence area based on the error occurrence point information output from the diagnosis unit 121. You can judge.

In this case, the RDG definition unit 126 may determine the error occurrence area based on the fourth host H4 in which the error processing framework AFM is present.

In other words, when an error occurs in the link between the first switch S1 and the second switch S2, the fourth host H4 including the error processing framework 100 may be connected to the first switch S1. Since the RDG defining unit 126 is not accessible, the RDG defining unit 126 may determine the plurality of nodes of the first switch S1 and the corresponding subtree as the error occurrence area based on the resource graph RDG.

Referring again to FIGS. 1 and 2, the FMG definition unit 127 of the graph definition unit 125 includes a plurality of devices configuring the home network system 10 from a resource map RM provided from the middleware manager 15. Error messages for various errors that may occur in (11, 12) may be defined and stored as an error message graph (FMG).

As illustrated in FIG. 6A, the FMG defining unit 127 may define an error message graph FMG for errors that may occur for each device.

For example, the FMG definer 127 may receive an error message regarding plug out errors, disjoint errors, and non-response errors that may occur in one host constituting the home network system 10. A graph FMG can be defined.

2 and 6B, the FMG defining unit 127 may define an error message graph (FMG) described in the form of Extensible Markup Language (XML), wherein the RDG defining unit 126 Each node constituting the resource graph RDG, that is, each device may be defined as an element tag.

The FMG defining unit 127 may define an error message graph FMG by connecting and describing error messages regarding errors related to the defined element tag as an item.

1 and 2, the FDG definition unit 128 of the graph definition unit 125 may be derived by one error message based on the error message graph FMG stored in the FMG definition unit 127. A dependency relationship for each of a plurality of errors can be defined and stored as a dependency error graph (FDG).

As illustrated in FIG. 7A, the FDG definition unit 128 may define a dependent error graph FDG for a plurality of errors having a dependent relationship with respect to one error of the error message graph FMG.

For example, the FDG definition unit 128 may define the dependent error graph FDG for disjoint errors and non-response errors that may be derived dependently on the plug-out error of the error message graph FMG.

Meanwhile, referring to FIGS. 2 and 7B, the FDG definition unit 128 may define a dependency error graph FDG described in XML format.

Therefore, the diagnosis unit 121 of the error diagnosis module 120 according to the error message graph FMG and the dependent error graph FDG defined for the first error message FM1 transmitted from the error receiving module 110. A detection error message DFM may be generated by extracting error messages for a plurality of errors that may occur from the first error message FM1.

In this case, the diagnosis unit 121 may output a detection error message (DFM) by removing a duplicate error message among error messages collected by referring to each of the error message graph FMG and the dependent error graph FDG.

In addition, the diagnosis unit 121 may diagnose the generated detection error message (DFM) to generate and output information about the devices in which the error occurs, that is, node information (NI).

In this case, the diagnosis unit 121 may generate the node information NI by referring to the resource graph RDG defined and stored in the RDG definition unit 126.

The error recovery module 130 may perform an error recovery operation on a node in which an error occurs according to node information NI output from the error diagnosis module 120.

3 is a flowchart of an error processing operation of the error processing framework shown in FIG. 2.

1, 2, and 3, the error receiving module 110 may receive a plurality of error messages FM from the middleware manager 15 and sequentially output them to the error diagnosis module 120. (S10).

The diagnosis unit 121 of the error diagnosis module 120 may detect information on an error occurrence point from the error message output from the error reception module 110, that is, the first error message FM1.

In addition, the diagnosis unit 121 may determine the error occurrence area from the information on the error occurrence point detected based on the resource graph RDG defined in the RDG definition unit 126, and may determine the FMG definition unit 127. Based on the defined error message graph FMG, a plurality of error messages that may occur in the node of the determined error occurrence region may be extracted. In addition, the diagnosis unit 121 may generate a plurality of error messages for errors that may occur depending on each of the plurality of error messages extracted based on the dependent error graph FDG defined in the FDG definition unit 128. Can be extracted (S20).

In addition, the diagnosis unit 121 may generate and output a detection error message (DFM) from the extracted plurality of error messages (S30).

The detection error message DFM is transmitted to the filter 111 of the error receiving module 110, and the filter 111 is transmitted from the middleware manager 15 based on the detection error message DFM. ) Or a plurality of error messages FM stored in the error queue 113 (S40).

In addition, the diagnosis unit 121 may generate the node information NI by diagnosing the detection error message DFM, and may output the generated node information NI to the error recovery module 130.

The error recovery module 130 may perform an error recovery operation on a node in which an error occurs based on the node information NI (S50).

That is, the error processing framework 100 according to the present invention diagnoses an error that may occur in the home network system 10 based on one error message, for example, the first error message FM1, but the first error message. By retrieving and diagnosing a plurality of error messages that can be generated in association from FM1, it is possible to reduce the sequential analysis time for each error message. In addition, an error diagnosis process may be omitted for the same error message generated in the home network system 10 later. Therefore, the error recovery time in the home network system 10 can be reduced.

FIG. 5 is a flowchart illustrating a method of defining a resource graph in the RDG definition unit illustrated in FIG. 2.

1, 2, 4, and 5, the RDG defining unit 126 may receive an initial resource map RM from the middleware manager 15 (S110).

The RDG definition unit 126 may set a root switch from the received initial resource map RM (S120).

For example, the RDG defining unit 126 may set one switch, for example, the second switch S2, having the largest connection path with the other switch among the plurality of switches of the resource map RM, as the root switch. .

In addition, the RDG defining unit 126 may set the remaining switches that are dependent on the root switch, that is, the sub switches (S130).

At this time, the RDG defining unit 126 may set the sub switches by setting ID information of each of the remaining switches in the set root switch.

Subsequently, the RDG definition unit 126 may configure a plurality of devices, for example, a plurality of devices, such as a host, a service, and a device, which are dependent on each of the root switch and the sub switch (S140).

The RDG defining unit 126 may perform device setting by setting ID information for each of the plurality of devices in the set route switch or the set sub switch.

The RDG defining unit 126 may define a resource graph RDG having a nonlinear tree structure as shown in FIG. 4 based on the set switch and the devices (S150).

In addition, the RDG defining unit 126 receives the change situation of the home network system 10, that is, the change information of the initial resource map RM, from the middleware management unit 15, and reflects it on the defined resource graph RDG. It may be updated (S160).

In this case, the RDG definition unit 126 may separately store the update time. This is to identify the home network situation, that is, the resource graph RDG immediately before such an error occurs, when the network situation is changed by an error in the home network system 10.

Although the contents of the present invention have been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. will be. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

10: home network system 13: middleware
15: Middleware Manager 100: Error Handling Framework
110: error receiving module 111: filter
113: Error Queue 120: Error Diagnostic Module
121: diagnostic unit 125: graph definition unit
130: error recovery module

Claims (16)

In the error handling framework that can handle errors generated in a home network system consisting of a plurality of devices,
An error receiving module which receives a plurality of error messages from each of the plurality of devices of the home network system and sequentially outputs the received plurality of error messages;
Determining an error occurrence area from one error message among the plurality of error messages from the error receiving module, and collecting and diagnosing an error message generated from one or more devices corresponding to the error occurrence area among the plurality of devices; Fault diagnostic module; And
An error recovery module for recovering an error caused by the error message in the one or more devices based on a diagnosis result of the error diagnosis module. The method according to claim 1,
The error diagnosis module may further include a resource graph definition unit that defines each of the plurality of devices as a resource graph having a nonlinear tree structure based on a resource map.
And the error diagnosis module determines the error occurrence area from the one error message based on the resource graph. The method according to claim 1,
The error diagnosis module further includes an error message graph definition unit that defines an error message graph for an error that may occur from each of the plurality of devices.
The error diagnosis module collects the error message generated from the one or more devices in the error occurrence area based on the error message graph. The method according to claim 1,
The error diagnosis module may further include a dependency error graph definition unit defining a dependency error graph for an error that may occur dependently from each of the plurality of error messages.
The error diagnosis module collects the error message generated from the one or more devices in the error occurrence area based on the dependent error graph. The method according to claim 1,
The error diagnosis module extracts an error occurrence point in the home network system from the one error message according to a predefined error diagnosis rule, and determines the error occurrence area based on the extracted error occurrence point. Processing framework. delete The method according to claim 1,
The error diagnosis module generates a detection error message from the collected error messages and outputs the detected error message to the error receiving module.
And the error receiving module filters an error message duplicated among the plurality of error messages based on the detection error message. The method according to claim 1,
The error diagnosis module generates information on an error generating device among the plurality of devices from the collected error messages and outputs the information to the error recovery module.
And the error recovery module recovers an error based on information about the failing device. In the error handling method of a home network system using an error handling framework,
Receiving a plurality of error messages from the home network system and sequentially outputting the received plurality of error messages;
Determining an error occurrence area from one error message among the plurality of error messages;
Collecting and diagnosing error messages generated from one or more devices corresponding to the error occurrence area determined among the plurality of devices of the home network system; And
And recovering an error generated from the one or more devices according to a result of collecting and diagnosing the error message. The method of claim 9, wherein the determining of the error occurrence area comprises:
Extracting an error occurrence point in the home network system from the one error message based on a defined error diagnosis rule; And
Determining the error occurrence area from the error occurrence point based on a resource graph. The method of claim 10, wherein the resource graph,
Setting a root switch among the plurality of devices based on the received resource map, and setting a sub switch that is dependent on the set root switch;
Establishing a dependency relationship for devices dependent on each of the root switch and the sub-switch; And
And generating the resource graph having a nonlinear tree structure from the root switch according to a setting result. The method of claim 11,
Receiving the change information of the resource map and updating the defined resource graph, and storing the update time of the resource graph. The method of claim 9, wherein collecting and diagnosing the error message comprises:
Defining an error message graph for errors that may occur from each of the plurality of devices; And
And collecting the error message generated from the one or more devices in the error occurrence area based on the defined error message graph. The method of claim 9, wherein collecting and diagnosing the error message comprises:
Defining a dependent error graph for an error that can occur dependently from each of the plurality of error messages; And
Collecting the error message generated from the one or more devices in the error occurrence area based on the defined error graph defined. The method of claim 9, wherein collecting and diagnosing the error message comprises:
Generating a detection error message from the collected error message; And
And filtering a duplicate error message among the plurality of error messages received from the home network system based on the detection error message. The method of claim 9,
The collecting and diagnosing the error message may further include generating information on the error generating device among the plurality of devices from the collected error message.
The recovering of the error may include recovering an error of the home network system based on the generated information about the failing device.

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