KR101843067B1 - Method for providing service based on smart energy profile supporting push and apparatus using the same - Google Patents

Abstract

The present invention relates to a method for providing a smart energy profile (SEP) 2.0 service using an apparatus based on SEP 2.0 and a SEP 2.0 service based apparatus using the same. More specifically, the apparatus analyzes a communication packet when the communication packet is obtained from a node. Based on a result of analyzing payload obtained by parsing the communication packet, the apparatus determines whether a SEP 2.0 protocol is a push or pull service and generates output payload based on the payload and whether the SEP 2.0 protocol is a push or pull service. The output payload can be transmitted to a node corresponding to a context. Therefore, the method of the present invention defines an XML schema interface in which a SEP 2.0 push service is defined.

Description

TECHNICAL FIELD [0001] The present invention relates to a smart energy profile service providing method, and more particularly,

The present invention relates to a method for providing an SEP 2.0 service using a smart energy profile (smart energy profile) based service apparatus and a service apparatus based on the SEP 2.0 using the same. Specifically, the service apparatus according to the present invention analyzes the communication packet when a communication packet is obtained from the node, and analyzes the communication packet based on a result of analyzing a payload obtained by parsing the communication packet, Determines whether the SEP 2.0 protocol is PUSH or PULL service, and generates an output payload based on whether the payload and the PUSH or PULL service are provided. The output payload can be transmitted to the contextual node. In the present invention, an XML schema interface in which SEP 2.0 PUSH service is defined is defined.

The smart energy profile (SEP) 2.0 defines a standard protocol between each application operating in a home area network (HAN). This definition is a sensitive issue in the sense of many manufacturers who have to adhere to the standard protocol. In this SEP 2.0, it is better to use a RESTful architecture suitable for the home area network, but define the services individually as a function set SEP 2.0 addresses this need by providing an XML payload interface that implements the architecture by providing these individually defined services as an XML standard schema.

As described in the SEP 2.0 standard specification document provided by the ZigBee Alliance, SEP 2.0 clients and servers operate as pull mechanisms. There are various attempts to connect the HAN using SEP 2.0 and its HAN network, but there is no direct interoperability between the payloads. Also, in the upper network, the protocol can support not only the PULL mechanism but also the PUSH mechanism. For the more perfect interoperable service, the inventor of the present invention needs to support the PUSH service in SEP 2.0. This flexibility also helps to improve the quality of service.

Non-Patent Document 1: Smart Energy Profile 2.0 Application Protocol Standard - IEEE Xplore, http://ieeexplore.ieee.org/iel7/6552203/6552204/06552205.pdf

It is an object of the present invention to provide a method and apparatus for providing inter-node services performed in a HAN and protocol services between upper nodes of the network as an interoperable SEP 2.0 PUSH service.

The characteristic configuration of the present invention for achieving the object of the present invention as described above and realizing the characteristic effects of the present invention described below is as follows.

According to an aspect of the present invention, there is provided a method of providing a smart energy profile (SEP) 2.0 service using a SEP 2.0-based service device, the method comprising: (a) The service device analyzing the communication packet; And (b) determining whether the service device is a PUSH or pull service of the SEP 2.0 protocol based on a result of analyzing a payload obtained by parsing the communication packet, and determining whether the payload and the PUSH or PULL service And generating an output payload based on the output payload.

According to another aspect of the present invention, there is also provided a computer program stored on a medium, comprising instructions embodied to perform the method according to the present invention.

According to still another aspect of the present invention, there is provided an SEP 2.0-based service apparatus for providing an SEP 2.0 service, comprising: a communication unit for acquiring a communication packet from a node; Wherein the processor determines whether the PUSH or PULL service of the SEP 2.0 protocol is based on a result of analyzing the payload obtained by parsing the communication packet, and wherein the payload and the PUSH And generates an output payload based on whether or not the service is PULL service.

According to the present invention, protocol services performed by nodes participating in a grid network can be interoperated with each other regardless of PUSH or PULL design without using the SEP 2.0 protocol.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention to those skilled in the art Other drawings can be obtained based on these figures without an inventive task being performed.
FIG. 1 is a sequence diagram illustrating a PUSH service at each node by configuring and defining a system in which a method for providing a SEP 2.0-based service according to the present invention is implemented as a node.
2 is a block diagram of a SEP 2.0-based service device implemented as each node except the first node illustrated in FIG.
3 is a block diagram of an SEP 2.0 service unit of a SEP 2.0-based service apparatus according to the present invention.
FIG. 4 is a flowchart schematically illustrating sub-steps of performing a PUSH service and a conventional pull service according to the present invention in an SEP 2.0 service unit of an SEP 2.0-based service apparatus according to the present invention.
5 is a top-level SEP 2.0 XML schema interface class diagram.
FIG. 6 is a diagram conceptually showing an item of redefinition of the SEP 2.0 XML schema and a PUSH request payload interface.
FIG. 7 conceptually illustrates an item of redefinition of the SEP 2.0 XML schema and a PUSH response payload interface.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of example, specific embodiments in which the invention may be practiced in order to clarify the objects, technical solutions and advantages of the invention. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention.

And throughout the description and claims of this invention, the word 'comprise' and variations thereof are not intended to exclude other technical features, additions, elements or steps. Other objects, advantages and features of the present invention will become apparent to those skilled in the art from this description, and in part from the practice of the invention. The following examples and figures are provided by way of illustration and are not intended to limit the invention.

Moreover, the present invention encompasses all possible combinations of embodiments shown herein. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It should also be understood that the position or arrangement of individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Unless otherwise indicated herein or clearly contradicted by context, items referred to in the singular are intended to encompass a plurality unless otherwise specified in the context. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

≪ SEP  Example of a system in which a 2.0-based service providing method is performed>

FIG. 1 is a sequence diagram illustrating a PUSH service at each node by configuring and defining a system in which a method for providing a SEP 2.0-based service according to the present invention is implemented as a node.

The term 'node' or 'communication node' as used herein refers to a computing device including a communication unit and a processor, which can directly or indirectly communicate with an external computing device, that is, another node through the communication unit.

Specifically, the node may be a computer-readable medium such as conventional computer hardware (e.g., a computer processor, memory, storage, input device and output device, an apparatus that may include other components of a conventional computing device, an electronic communication device such as a router, Electronic information storage systems such as network-attached storage (NAS) and storage area network (SAN)) and computer software (i.e., instructions that cause a node to function in a particular manner) } May be used to achieve the desired system performance.

The communication unit of such a node can send and receive requests and responses to and from other interworking nodes. As an example, such requests and responses can be made by the same transmission control protocol (TCP) session, But may also be transmitted and received as a user datagram protocol (UDP) datagram, for example. In addition, in a broad sense, the communication unit may include a keyboard, a mouse, and other external input devices for receiving commands or instructions.

The processor of the node may also include hardware configurations such as a micro processing unit (MPU), a central processing unit (CPU) or a graphics processing unit (GPU), a cache memory, a data bus, It may further include a software configuration of an operating system and an application that performs a specific purpose.

Referring to FIG. 1, a first node is a service top node, and is a node that provides an upper service to a second node. The first node must be able to interoperate contextually with the second node, and the provided protocol service can operate as PUSH or PULL. As an example of the first node, there is a virtual top node (VTN) that performs an OpenADR 2.0b service, but it will be understood by those of ordinary skill in the art that the present invention is not limited thereto.

Continuing to refer to FIG. 1, the second node may be an EMS using the SEP 2.0 protocol. Specific examples thereof include HEMS and the like. A protocol used by the first node is used for communication between the first node and the second node, and SEP 2.0 is used for communication between the second node and the third node. In addition, an upper protocol service may optionally be implemented at the second node so that communication with the upper node may be performed. One example of the higher protocol service is OpenADR 2.0b, which can be implemented as a virtual end node (VEN) that communicates with the first node, VTN.

The protocol communication specification and implementation of the first node and the second node described above comply with the corresponding protocol standard specification. The above implementation is independent of, or independent of, the method and apparatus for providing SEP 2.0-based services according to the present invention.

Further, the third node manages the fourth node, and acts as an agent relaying communication between the fourth node and the second node. In order to optimize the apparatus, the third node does not have to include a service function required for protocol communication between the first node and the second node.

And the fourth node is an end device that performs the functions of SEP 2.0. In order to optimize the apparatus, the fourth node may not include a service function required for protocol communication between the first node and the second node.

< SEP  Example of a 2.0-based service device>

2 is a block diagram of a SEP 2.0-based service device implemented as each node except the first node illustrated in FIG.

2, the packet receiving unit 210, the service analyzing unit 220, the SEP 2.0 service unit 230, the first node protocol service unit 240, and the packet transmitting unit 250 are exemplarily shown, A communication unit of a computing device may serve as a packet receiving unit 210 and a packet transmitting unit 250. The processor of the computing device may be a service analyzing unit 220, an SEP 2.0 service unit 230, (240).

Referring to FIG. 2, a method for providing an SEP 2.0 service using a smart energy profile (SEP) 2.0-based service device according to the present invention (hereinafter referred to as a "SEP 2.0 service providing method" When the communication packet is obtained, the service apparatus 200 includes a step S100 (not shown) of analyzing the communication packet.

Specifically, in one embodiment of this step S100, as a detailed step, when a communication packet is received from the node, the packet receiving unit 210 obtains the packet and transmission / reception node information of the packet (S110; (Not shown).

Here, the transmission / reception node information includes, for example, IP information and port information of a transmission / reception node for a PUSH or PULL service of a protocol, and additional information such as a node ID may be included if necessary for the service.

Next, in this embodiment, the service analyzing unit 220 obtains the HTTP information, the payload protocol name, and the payload by parsing the packet when the packet and the transmission / reception node information are acquired (S120; (Not shown).

Here, the HTTP information may be information required to perform a RESTful architecture such as payload transmission method or resource information. In addition, the payload transmission method may be an HTTP request or an HTTP response.

If the packet reception unit 210 fails to receive the packet in step S110, the packet reception unit 210 reports the failure to the packet transmission unit 250 to be described later, so that the packet transmission unit 250 transmits the failure to the other node To report failure.

Next, this embodiment further includes a step (S130) of checking whether the service analysis unit 220 validates the packet using the transmission / reception node information, the HTTP information, and the payload protocol name do.

2, the method for providing an SEP 2.0 service according to the present invention is a method for providing a service to a service device 200 based on a result of analyzing a payload obtained by parsing the communication packet by the service analyzer 220 , Determining whether the SEP 2.0 protocol is PUSH or PULL service, and generating an output payload based on whether the payload and the PUSH or PULL service are provided (S200; not shown). If the analysis fails, the service analysis unit 220 may report the failure to the packet transmission unit 250, and cause the packet transmission unit 250 to report the failure to the other node.

Specifically, in an embodiment of the step S200, if the payload does not exist, the service analyzer 220 determines whether the payload protocol name is SEP 2.0, (Ii) transmitting the node information, the HTTP information, and the payload to the SEP 2.0 service unit when the payload protocol name is SEP 2.0; (S210) (not shown).

If the payload protocol name is not SEP 2.0 in the process (i) of step S210, the node information and the HTTP information may be transmitted to the first node protocol service unit 240. In step S210, In the process (ii), if the payload protocol name is not SEP 2.0, the node information, the HTTP information, and the payload may be transmitted to the first node protocol service unit 240.

Next, the embodiment of step S200 is configured such that when the SEP 2.0 service unit 230 receives the payload from the service analysis unit 220, it transmits (i) the node information, the HTTP information, (Ii) the node information received from the service analysis unit 220, and the node information received from the service analysis unit 220, and (S220) (not shown) of generating the response payload or the request payload as an output payload by performing a process of generating a request payload that performs a PUSH or pull service suitable for a context using HTTP information .

Another embodiment of step S200 that can be implemented in combination with this embodiment is that when the first node protocol service unit 240 receives the payload from the service analysis unit 220, (i) (Ii) if the payload does not exist and a service start request is transmitted from the node, (ii) the service analyzing unit performs a process of generating a response payload suitable for the context using the HTTP information and the payload, When the response payload or the request payload is generated as an output payload, a request payload for performing a PUSH or PULL service suitable for the context is generated using the node information and the HTTP information received from the node , And transmitting the output payload to the packet transmission unit 250 (S220 ', not shown). On the other hand, if the output payload generation fails, the first node protocol service unit 240 may report the failure to the packet transmission unit 250, thereby causing the packet transmission unit 250 to report the failure to the other node.

In the steps (S100) and (S200) mentioned above, the standard schema interface of the redefined SEP 2.0 is referred to, which will be described later with reference to Figs. 5 to 7.

2, when the output payload is generated, the SEP 2.0 service unit 230 transmits the output payload to the packet transmission unit (S300 (Not shown). On the other hand, if the output payload generation fails, the SEP 2.0 service unit 230 may report the failure to the packet transmission unit 250, thereby causing the packet transmission unit 250 to report the failure to the other node.

Next, in the method of providing an SEP 2.0 service according to the present invention, when the output payload is acquired, the packet transmission unit 250 transmits a transmission packet suitable for the context using the output payload, the node information, and the HTTP information (S400; not shown); And the packet transmission unit 250 perform the process of (i) transmitting the transmission packet to the appropriate receiving node based on the receiving node information included in the node information, (Ii) performing a process of reporting a failure to another node where the SEP 2.0 PUSH service is capable (S500; not shown). Here, a suitable receiving node means a node to which the output payload is to be transmitted according to the context.

It will be understood by those skilled in the art that another node capable of performing the SEP 2.0 PUSH service may be another SEP 2.0-based service device implementing the SEP 2.0 service providing method according to the present invention.

< SEP  2.0 Exemplary Block Diagram and Flow Diagram of Service Section>

Hereinafter, one embodiment of the SEP 2.0 service unit 230 will be described in more detail.

FIG. 3 is a block diagram of an SEP 2.0 service unit of an SEP 2.0-based service apparatus according to the present invention. FIG. 4 is a diagram illustrating a SEP 2.0 service unit of a SEP 2.0- Fig. 2 is a flowchart schematically showing each detailed step of performing the step. Fig.

3, the SEP 2.0 service unit 230 includes a request payload receiving unit 232, a service setting unit 234, a payload generating unit 236, and a payload transmitting unit 238 can do.

The request payload receiving unit 232 receives the payload from the service analyzing unit 220 and transmits the payload to the service setting unit 234. [

The service setting unit 234 can directly receive a PUSH or PULL service start request from another node (not shown). The service setting unit 234 parses the payload received from the request payload receiving unit 232 and converts the payload into an XML DOM structure. The service setting unit 234 analyzes the structure to collect necessary context information.

In addition, the service setting unit 234 determines whether to perform the response service, the PUSH, or the pull service according to the presence or absence of the input payload. Referring to FIG. 4, the service setting unit 234 determines to perform the response service if the input payload exists, and waits for a service request from the node when the input payload does not exist.

When the context information is present, the service setting unit 234 delivers the determined service and context information to the payload generating unit 236. If the context information does not exist, the service setting unit 234 delivers only the determined service to the payload generating unit , As illustrated in the flow chart in Fig.

3 and 4, the payload generating unit 236 generates a payload valid in the XML standard schema interface using the determined service and context information received from the service setting unit 234. [ When the generation of the payload is completed, the payload is transmitted to the payload transmission unit 238.

The above-described generation process of the payload will be described in detail after the description of FIGS. 5 to 7.

< SEP  2.0 Example of Overriding a Standard Schema>

FIG. 5 conceptually shows a top-level SEP 2.0 XML schema interface class diagram, FIG. 6 conceptually shows an override item of the SEP 2.0 XML schema and a PUSH request payload interface, FIG. 7 illustrates an override item of the SEP 2.0 XML schema, PUSH response payload interface.

In the present invention, the interface shown in FIG. 5 is redefined to define the interface of the SEP 2.0 PUSH service. According to the SEP 2.0-based service providing method of the present invention, the service is provided according to the existing SEP 2.0 standard specification in the case of PULL, and the XML Schema interface is redefined as illustrated in this specification in the case of PUSH. In short, the PUSH service uses a redefined XML schema.

In other words, Figure 6 is an exemplary representation of the newly defined, XML Schema interface of the request payload used by the SEP 2.0 PUSH service.

The name of the request payload illustrated in FIG. 6 is PushRequest, which inherits IdentifiedObject, which is a parent object of a general function set in SEP 2.0, and defines requestID, signal, and requestObjectLink elements.

The requestID element is used as the transaction ID of the SEP 2.0 PUSH service. The signal element is used as a signal for the SEP 2.0 PUSH service. It is an integer starting from 0 and can be used to define a new signal for smooth service. For example, you can define a signal with 0 as new, 1 as correction, 2 as deletion, and add 3 as a pause here.

requestObjectLink is an abstraction element that can implement a functional object list that was provided as a response to an existing PULL service. If the element is not created, the element is treated as All, and all functions of the node requested by the PUSH service can be controlled by a signal.

On the other hand, referring to the example of FIG. 7, the name of the response payload is PushResponse, and inherits the response payload used in the existing PULL service. This allows the PushRequest payload to respond to the list of objects defined by requestObjectLink. Defining the requestID is the same string as the requestID used in the PushRequest payload. Payloads with the same requestID are treated as belonging to the same service transaction.

Those of ordinary skill in the art will recognize that the XML Schema redefinition entries in Figures 6 and 7 are exemplary and that the actual implementation thereof may be modified in various ways without departing from the scope of protection of the present invention . For example, the names of the elements illustrated in Figs. 6 and 7 and the type of the item may be variously modified.

The generation process of the payload will now be described in detail with reference to FIGS. 6 and 7 and FIG.

If the determined service is a response service, a payload that satisfies the SEP 2.0 standard schema interface and is invalid for FIGS. 6 and 7 is determined as a pull service payload. same. In addition, payloads satisfying the SEP 2.0 standard schema interface and valid in Figs. 6 and 7 are PUSH service payloads. If a payload is valid in FIG. 6, a valid payload is generated for FIG. 7 using the context information. If the payload is a valid payload in FIG. 7, only an HTTP response is sent.

On the other hand, if the determined service is a PUSH service, payloads satisfying the SEP 2.0 standard schema interface and valid for FIG. 6 are generated using the context information.

On the other hand, if the determined service is a pull service, generation of a payload for the service is the same as that of the conventional method.

3 and 4, the payload transmitter 238 transmits the payload completed in this manner to the packet transmitter 250, thereby allowing the packet transmitter 250 to perform the functions described above with reference to FIG. 2 .

According to all of the above-described embodiments, the present invention enables flexible interoperation between nodes by not relying on PUSH or PULL design of protocol services performed by nodes participating in the grid network without using SEP 2.0 protocol Thereby improving the quality of service.

Based on the description of the above embodiments, one of ordinary skill in the art can clearly understand that the present invention can be achieved through a combination of software and hardware, or can be accomplished by hardware alone. Objects of the technical solution of the present invention or portions contributing to the prior art can be implemented in the form of program instructions that can be executed through various computer components and recorded on a computer-readable recording medium. The computer-readable recording medium may include program commands, data files, data structures, and the like, alone or in combination. The program instructions recorded on the computer-readable recording medium may be those specially designed and constructed for the present invention or may be those known to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs, DVDs, Blu-ray, magnetic-optical media such as floppy disks magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those generated by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.

The hardware device may be configured to operate as one or more software modules for performing the processing according to the present invention, and vice versa. The hardware device may include a processor, such as a CPU or a GPU, coupled to a memory, such as ROM / RAM, for storing program instructions, and configured to execute instructions stored in the memory, And a communication unit. In addition, the hardware device may include a keyboard, a mouse, and other external input devices for receiving commands generated by the developers.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be construed as being limited to the above-described embodiments, and all of the equivalents or equivalents of the claims, as well as the following claims, I will say.

Equally or equivalently modified such methods will include logically equivalent methods which can yield, for example, the same results as those of the method according to the invention.

Claims (8)

A method for providing SEP 2.0 services using a smart energy profile (SEP) 2.0-based service device,
(a) when a communication packet is obtained from a node, the service apparatus analyzing the communication packet; And
(b) determining, based on a result of analyzing a payload obtained by parsing the communication packet, whether the service device is a PUSH or pull service of the SEP 2.0 protocol, Generating an output payload based on whether the service is PUSH or PULL,
The service apparatus includes a packet receiving unit, a service analyzing unit, and an SEP 2.0 service unit,
The step (a)
(a1) when the communication packet is received from the node, the packet receiving unit acquires the packet and the transmitting / receiving node information of the packet;
(a2) if the packet and the transmission / reception node information are acquired, the service analysis unit parses the packet to obtain HTTP information, a payload protocol name, and a payload; And
(a3) the service analysis unit verifying the validity of the packet using the transmission / reception node information, the HTTP information, and the payload protocol name,
The step (b)
(b1) if the payload does not exist, (i) the node transmits the node information and the HTTP information to the SEP 2.0 service unit when the payload protocol name is SEP 2.0, Performing a process of transmitting the node information, the HTTP information, and the payload to the SEP 2.0 service unit when the payload protocol name is SEP 2.0; And
(b2) when the SEP 2.0 service unit of the service apparatus receives the payload from the service analysis unit, (i) generates a response payload suitable for the context using the node information, the HTTP information, and the payload (Ii) if the payload does not exist and a service start request is transmitted from the node, (ii) the PUSH or PULL service suitable for the context using the node information and the HTTP information received from the service analysis unit And generating the request payload or the request payload as an output payload by performing a process of generating a request payload to perform the request payload. The method according to claim 1,
In the step (a) and the step (b)
Wherein the redefined SEP 2.0 standard schema interface is referenced. delete delete The method according to claim 1,
Wherein the service apparatus further comprises a packet transmission unit,
The method comprises:
(c) when the output payload is generated, the SEP 2.0 service unit transmits the output payload to the packet transmission unit;
(d) when the output payload is acquired, the packet transmitter of the service apparatus generates a transmission packet suitable for the context using the output payload, the node information, and the HTTP information; And
(e) when the generation of the transmission packet is completed, (i) the packet transmission unit performs a process of transmitting the transmission packet to a suitable receiving node based on the receiving node information included in the node information, (Ii) performing a process of reporting a failure to another node where the SEP 2.0 PUSH service is capable of performing,
Wherein the SEP 2.0-based service providing method further comprises: 6. The method of claim 5,
Wherein the service apparatus further comprises a first node protocol service unit,
In the step (b1)
The process (i) is characterized in that if the payload protocol name is not SEP 2.0, the process transfers the node information and the HTTP information to the first node protocol service unit,
The process (ii) is characterized in that if the payload protocol name is not SEP 2.0, the process transfers the node information, the HTTP information and the payload to the first node protocol service unit,
The step (b)
(b2 ') when the first node protocol service unit of the service apparatus receives the payload from the service analysis unit, (i) using the node information, the HTTP information, and the payload, (Ii) if the payload does not exist and a service start request is transmitted from the node, (ii) the node information received from the service analysis unit, the HTTP information, and the PUSH Or a request payload that performs a PULL service, and when the response payload or the request payload is generated as an output payload, transmitting the output payload to the packet transmitter
Wherein the SEP 2.0-based service providing method further comprises: delete delete

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