KR101609056B1 - Smart context distribution framework based on messaging service for internet of things and control method for the same - Google Patents

Abstract

The smart situation distribution framework apparatus based on the object Internet messaging service according to an embodiment of the present invention includes a plurality of channels and a status channel unit for transmitting status data to an application associated with a subscriber of the corresponding channel through the plurality of channels, ; And a channel selection unit for selecting each channel provided in the status channel unit and allocating the status data for each channel.

Description

TECHNICAL FIELD [0001] The present invention relates to a Smart Context Distribution Framework device based on Internet messaging service and a control method thereof. [0002]

Embodiments of the present invention relate to context-aware computing, and more particularly, to a smart situation distribution framework device based on object Internet messaging services and a control method thereof.

The recent information communication paradigm is Ubiquitous Computing, Ubiquitous Network, Pervasive Computing and so on. This is all the same concept, and what Ubiquitous means is that users can easily get the information they want whenever and wherever.

In the upcoming ubiquitous era, smart objects with computing and communication capabilities will have the characteristics of recognizing and adapting to dynamic changes in the environment, that is, the situation recognition characteristics.

The above-mentioned context awareness refers to acquiring changes in the user's current position, behavior and work, temperature, time, and emotion state from the surrounding environment. A context aware service (CAS) is a service that provides a context suitable for a user based on the above context information.

This situation recognition service recognizes the situation of the user through the collection and exchange of the situation information and provides the appropriate service to the user through processing such as interpretation and inference, and will be highlighted as a main service in the future ubiquitous era will be.

Conventionally, in order to acquire situation information of other devices, an application installed in a smart phone or the like has been grasping the specific location of the situation information and, when necessary, the application directly accesses the situation information There is a problem that the burden on the application is increased because the situation information is fetched.

Related Prior Art International Publication No. 2013-123445 (entitled SMART INTERNET OF THINGS SERVICES, published on Aug. 22, 2013) is available.

An embodiment of the present invention relates to a smart situation distribution framework device based on an object Internet messaging service, which allows status data to be allocated to each channel, so that an application can obtain status data by subscribing only to channels having desired situation data, and Control method.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and another problem (s) not mentioned can be clearly understood by those skilled in the art from the following description.

The smart situation distribution framework apparatus based on the object Internet messaging service according to an embodiment of the present invention includes a plurality of channels and a status channel unit for transmitting status data to an application associated with a subscriber of the corresponding channel through the plurality of channels, ; And a channel selection unit for selecting each channel provided in the status channel unit and allocating the status data for each channel.

The smart situation distribution framework apparatus based on the object Internet messaging service according to an embodiment of the present invention further includes a status channel mapping table for mapping IDs of status data to IDs of corresponding status channels and storing them, The channel selection unit may allocate the context data for each channel by referring to the context channel mapping table.

The channel selection unit receives the primitive situation data from the external data provider using the object Internet messaging service, allocates a context primitive set in which the received primitive data is collected to all the context channels, In the context primitive set allocated to all the context channels, each context primitive integrates a set of primitive data constituting the context primitive into one message and can be delivered to all subscribers registered in the corresponding channel through the application have.

For example, if the context channel is composed of four sets of context primitives, four messages may be sent to the subscriber over the context channel. In the channel selection unit, the source data is transmitted separately when the source data is transmitted. In the context channel, the source data group constituting the context primitive is transmitted in units of one message when the source data is transmitted to the subscriber.

The object Internet messaging service may be a messaging service based on a Message Queuing Telemetry Transport (MQTT) protocol.

Wherein the status channel unit assigns at least one access level of an open type, an access-limited type, and a group type to each of the plurality of channels, The channel authentication function of the subscriber for the subscription of the subscriber.

The context channel unit may include a filter chain that supports the quality of the plurality of contextual data (QoC), which is a collection of filters that are logically ordered and combine with pluggable filters.

Here, the filter chain can support the extraction, processing, authentication, and security of the transmitted status data and provide the same information as information having different characteristics according to the purpose.

That is, the filter chain has a function of converting raw condition data assigned to each channel by the channel selecting unit into qualified data according to quality criteria of each situation data (QoC criteria), and A filter interface having a function of passing the converted data to a next filter; And a filter chain interface having the function of adding a filter at a specific location in the filter chain, deleting the filter at a particular location or replacing it with another new filter, and executing the filters in the filter chain in order have.

The filter chain includes a value range filter for passing only values within a certain range; A time filter for passing a value within a specific time interval; An average filter for calculating and transmitting an average value of a specific condition; A value change filter for comparing the currently transmitted value with the previous value and passing the currently transmitted value if different; And a customized filter implemented based on the filter interface when a function other than the common filter is required according to a user's request, and the status channel unit includes at least one of the value range filter and the value change filter And transmit the average value passed through one to the application.

The (raw) situation data assigned to each of the channels may be editable.

A method for controlling a Smart Context Distribution Framework apparatus based on an object Internet messaging service according to an embodiment of the present invention includes a step of selecting a plurality of channels provided in a context channel unit in a channel selection unit of a smart situation distribution framework apparatus, Assigning status data for each of the channels; And transmitting the context data to an application associated with a subscriber of the corresponding channel through the plurality of channels in a context channel unit of the smart situation distribution framework apparatus.

The method of controlling a smart situation distribution framework apparatus based on a subject Internet messaging service according to an embodiment of the present invention is characterized in that in the situation channel mapping table of the smart situation distribution framework apparatus, And allocating the context data to each of the channels by referring to the context channel mapping table. The step of allocating the context data for each channel may include allocating the context data for each channel by referring to the context channel mapping table.

The step of allocating the situation data for each channel may include the step of allocating the raw situation data to the channel requiring the situation data using the object Internet messaging service.

A method of controlling a smart situation distribution framework apparatus based on a thing Internet messaging service according to an embodiment of the present invention is characterized in that in the situation channel unit, an open type, an access-limited type and providing an access level of at least one of a group type and a group type to provide the subscriber's channel authentication function for subscription of the status data.

The control method of the smart situation distribution framework apparatus based on the object Internet messaging service according to an embodiment of the present invention further includes a step of supporting quality (QoC) of the plurality of situation data in a filter chain of the situation channel unit .

The control method of the smart situation distribution framework apparatus based on the object Internet messaging service according to the embodiment of the present invention is characterized in that in the filter interface of the filter chain, Converting the raw status data assigned to each channel into qualified data; And at the filter interface of the filter chain, passing the transformed data to the next filter.

A method of controlling a Smart Context Distribution Framework apparatus based on an object Internet messaging service according to an embodiment of the present invention includes the steps of adding a filter at a specific position in the filter chain or filtering a filter at a specific position in a filter chain interface of the filter chain Delete or replace with another new filter; And in the filter chain interface of the filter chain, executing the filters in the filter chain in order.

The details of other embodiments are included in the detailed description and the accompanying drawings.

According to an embodiment of the present invention, by allocating the situation data for each channel, the application can acquire the situation data by subscribing only to the channel having the desired situation data.

According to an embodiment of the present invention, since it is necessary to manage only the channel to which the situation data is allocated without duplicate transmission of the same data to various applications, it is possible to reduce the burden of the application, .

FIG. 1 is a block diagram illustrating a smart situation distribution framework device based on an object Internet messaging service according to an embodiment of the present invention. Referring to FIG.
FIG. 2A is a diagram for explaining situation data. FIG.
FIG. 2B is a diagram illustrating key elements of a context channel and a channel selector according to an exemplary embodiment of the present invention. Referring to FIG.
2C is a diagram showing an example of the context channel mapping table of FIG.
FIGS. 3 and 4 are diagrams for explaining a filter chain included in the context channel unit of FIG. 1. FIG.
FIG. 5 is a flowchart illustrating a control method of a smart situation distribution framework apparatus based on the object Internet messaging service according to an embodiment of the present invention. Referring to FIG.
FIG. 6 is a flowchart illustrating a process of allocating situation data according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and / or features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

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

FIG. 1 is a block diagram illustrating a smart situation distribution framework device based on an object Internet messaging service according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 1, a smart situation distribution framework apparatus 100 based on an object Internet messaging service according to an embodiment of the present invention includes a context channel unit 110, a channel selection unit 120, and a context channel mapping table 130).

The status channel unit 110 includes a plurality of channels. The context channel unit 110 transmits context data to an application (APP) associated with a subscriber of the corresponding channel through the plurality of channels.

Here, the situation data may include a state consisting of identities, activities, status, time, location, etc. of entities of the real world, for example, It means various information that can be defined. Such situation data may consist of a set of context primitives (CPs). Hereinafter, the raw situation data will be described in detail.

In the present embodiment, the context is composed of a set of 'Context Primitives (CP)' that collect related raw data actually used in an application program as shown in FIG. 2A. Context primitives can be effectively used when "information needs to be provided as a meaningful unit of information in general", and these context primitives are used as the main constituent of context data for increasing the quality of situation data (QoC) .

In addition, in the context channel, all the data of the context primitive can be delivered as a single message with appropriate settings.

FIG. 2B shows a key element of the context channel and a channel selector (a component corresponding to the channel selector 120 of FIG. 1). The Channel Selector receives raw data (raw data or raw context) from an external data provider (eg, sensor, SNS data, calendar data, e-mail, etc.) and stores a set of context primitives To all registered Context Channels. The raw data (from the Context Primitive) received from the Context Selector is processed through the Context Channel's Filter Chain and then delivered to all subscribers (service providers, users, devices, etc.) registered on the Context Channel. At this time, all data of Context Primitive can be transmitted as a single message in Context Channel with proper setting.

The application (APP) accesses a channel having context data desired by the subscriber and can receive and subscribe to the status data allocated to the channel.

In other words, unlike the existing method of subscribing the situation data through direct access between applications, the application accesses the corresponding channel, so that the subscriber can subscribe to the status data allocated to the channel have.

Therefore, according to the embodiment of the present invention, the subscriber can access the channel to which the desired situation data is allocated through the application (APP) without directly accessing the other application, The situation data can be obtained.

The status channel unit 110 provides at least one access level of an open type, an access-limited type, and a group type to each of the plurality of channels And provide the channel authentication function of the subscriber for subscription of the situation data.

Wherein the open type channel refers to a channel that allows all users access and the access limited type channel includes a channel that allows access by a qualified subscriber having an associated access key Point. The group type channel refers to a channel that allows a user who is authorized by the authentication module for the related group only.

The context channel unit 110 includes a filter chain that supports the quality of the plurality of context data (QoC: Quality of Context), which is an aggregate of filters that are logically ordered and coupled with pluggable filters . The filter chain will be described in detail later with reference to FIG.

The channel selection unit 120 selects each channel provided in the status channel unit 110 and allocates the (raw) status data for each channel. For this, the channel selection unit 120 may use the context channel mapping table 130.

That is, the channel selector 120 can allocate the (context) status data for each channel by referring to the context channel mapping table 130. [ At this time, the channel selection unit 120 can allocate the raw situation data to the channel requiring the situation data using the Internet of Things Messaging Service.

Here, the IoT Messaging Service may include a messaging service based on a Message Queuing Telemetry Transport (MQTT) protocol.

That is, the channel selector 120 can allocate the raw status data to a channel requiring the status data using a messaging service based on the MQTT protocol.

Here, (raw) situation data allocated to each channel is editable. The editing function of the (raw) situation data may be performed through an editing module installed separately or internally. That is, the editing module can access the status channel mapping table 130 and edit corresponding (raw) status data.

As shown in FIG. 2C, the status channel mapping table 130 may map and store the IDs of the (status) data with the IDs of the status channels. 2C is a diagram showing an example of the context channel mapping table 130 of FIG.

In FIG. 2C, N can be expressed as a number as an ID of (raw) status data, and I, J, K can be also expressed as a channel number and also as a number. The context mapping table 130 may be used when the channel selection unit 120 allocates the (raw) context data for each channel.

FIG. 3 and FIG. 4 are diagrams for explaining a filter chain included in the context channel unit 110 of FIG.

As shown in FIG. 3 and FIG. 4, the filter chain is an aggregate of filters in which pluggable filters are logically ordered and combined. The filter chain receives raw context data (raw context) And outputs it to the context data (New Context).

The filter chain may comprise a filter interface 310 and a filter chain interface 320. The filter chain may also include a value range filter 330, a time filter 340, an average filter 350, a value change filter 360, And a definition filter 370 as shown in FIG.

The filter interface 310 transmits raw condition data allocated to each channel by the channel selection unit (see "120 " in FIG. 1) to qualifying data qualified data), and a function of passing the converted data to the next filter.

The filter chain interface 320 has a function of adding a filter to a specific position in the filter chain, deleting a filter at a specific position or replacing it with another new filter, and executing the filters in the filter chain in order .

The value range filter 330 functions to pass only a value within a certain range.

The time filter 340 functions to pass a value within a specific time interval.

The average filter 350 calculates and transmits an average value of a specific condition.

The value change filter 360 compares the currently transmitted value with the previous value, and if so, passes the currently transmitted value.

Values passed through at least one of the value range filter 330 and the value change filter 360 may be transmitted to the application APP through the status channel unit (see 110 in FIG. 1).

The user-defined filter 370 may be implemented based on the filter interface 310 when a function other than a 'common filter' is required according to a user's request.

FIG. 5 is a flowchart illustrating a control method of a smart situation distribution framework apparatus based on the object Internet messaging service according to an embodiment of the present invention. Referring to FIG.

1 and 5, in step 510, the channel selection unit 120 of the smart situation distribution framework apparatus 100 selects each of a plurality of channels included in the context channel unit 110, (Raw) context data for each of the channels.

At this time, the channel selection unit 120 of the smart situation distribution framework apparatus 100 can allocate the raw situation data to the channel requiring the situation data using the object Internet messaging service.

Hereinafter, a process of allocating the situation data will be described with reference to FIG.

1 and 6, in step 610, the context channel mapping table 130 of the smart situation distribution framework apparatus 100 stores the IDs of the (raw) situation data in the corresponding situation And stores it by mapping with the ID of the channel.

Then, in step 620, the channel selection unit 120 of the smart situation distribution framework apparatus 100 allocates the (context) status data for each channel by referring to the context channel mapping table 130 .

Referring again to Figures 1 and 5, at step 520, the context channel section 110 of the smart contextual distribution framework device 100 receives the (raw) contextual data and the actual And transmits a set of 'Context Primitives (CP)', which is a collection of related raw data, to an application (APP) associated with a subscriber of the corresponding channel. At this time, all data of Context Primitive can be transmitted as a single message in Context Channel with proper setting.

At this time, the context channel unit 110 of the smart situation distribution framework apparatus 100 may include an open type, an access-limited type, and a group type for each of the plurality of channels. To provide the subscriber's channel authentication function for subscribing to the status data.

In addition, the context channel unit 110 of the smart situation distribution framework apparatus 100 may include a filter chain, which supports the quality of the plurality of context data (QoC).

To this end, the filter chain transmits raw status data allocated to each channel by the channel selection unit 120 to the qualifying data (" qualified data) and pass it to the next filter.

In addition, the filter chain may add a filter to a particular location in the filter chain, delete a filter at a particular location, or replace it with another new filter through a filter chain interface, It is possible.

In this way, according to the embodiment of the present invention, by allocating the situation data for each channel, the application can obtain the situation data by subscribing only to the channel having the desired situation data. In addition, according to an embodiment of the present invention, only the channel to which the situation data is allocated can be managed without duplicate transmission of the same data to various applications. Therefore, the burden on the application can be reduced, .

Embodiments of the present invention include computer readable media including program instructions for performing various computer implemented operations. The computer-readable medium may include program instructions, local data files, local data structures, etc., alone or in combination. The media may be those specially designed and constructed for the present invention or may be those known to those skilled in the 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 and DVDs, magneto-optical media such as floppy disks, and ROMs, And hardware devices specifically configured to store and execute the same program instructions. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

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, Modification is possible. Accordingly, the spirit of the present invention should be understood only in accordance with the following claims, and all equivalents or equivalent variations thereof are included in the scope of the present invention.

110:
120: Channel selection unit
130: Situation channel mapping table
310: Filter Interface
320: Filter Chain Interface
330: Value range filter
340: Time filter
350: Average filter
360: Change value filter
370: Custom filter

Claims (16)

A status channel unit having a plurality of channels and transmitting status data to an application associated with a subscriber of the corresponding channel through the plurality of channels; And
And a channel selection unit for selecting each channel provided in the status channel unit and allocating the status data for each channel;
The situation channel unit
A collection of filters that are pluggable filters logically ordered and combined, the filter chain including a filter chain supporting quality (QoC) of the plurality of contextual data;
The filter chain
A function of converting raw condition data allocated to each channel by the channel selection unit into qualified data according to QoC criteria of each situation data, A filter interface having a function of passing through a filter; And
A filter chain interface having a function of adding a filter at a specific position in the filter chain, deleting a filter at a specific position or replacing the filter at a specific position with another new filter, and a function of sequentially executing the filters in the filter chain A smart situation distribution framework device based on the Internet messaging service.
The method according to claim 1,
Further comprising a situation channel mapping table for mapping each ID of the situation data to an ID of the corresponding situation channel and storing the ID,
The channel selector
And allocates the situation data to each channel by referring to the context channel mapping table.
The method according to claim 1,
The channel selector
Receiving context information from an external data provider by using the object Internet messaging service, allocating a context primitive set in which the received context information is collected to all context channels,
The situation channel unit
Each context primitive in the context primitive set allocated to all context channels integrates a set of primitive data constituting the context primitive into one message so that it can be delivered to all subscribers registered in the corresponding channel through the application A smart situation distribution framework device based on the Internet messaging service.
The method of claim 3,
The object Internet messaging service
Wherein the message is a messaging service based on a Message Queuing Telemetry Transport (MQTT) protocol.
The method according to claim 1,
The situation channel unit
Wherein at least one access level of an open type, an access-limited type, and a group type is assigned to each of the plurality of channels, And provides the subscriber's channel authentication function. ≪ RTI ID = 0.0 > [100] < / RTI >
delete delete The method according to claim 1,
The filter chain
A value range filter that passes only values within a certain range;
A time filter for passing a value within a specific time interval;
An average filter for calculating and transmitting an average value of a specific condition;
A value change filter for comparing the currently transmitted value with the previous value and passing the currently transmitted value if different; And
And a customized filter implemented based on the filter interface when a function other than a common filter is required according to a user's request,
The situation channel unit
And transmits the values passed through at least one of the value range filter and the value change filter to the application.
The method according to claim 1,
The status data allocated to each channel
A smart situation distribution framework device based on an Internet messaging service.
Selecting a plurality of channels in the context channel unit and allocating context data for each channel in the channel selection unit of the smart context distribution framework apparatus; And
Transmitting the context data to an application associated with a subscriber of the corresponding channel through the plurality of channels in a context channel unit of the smart situation distribution framework apparatus;
Supporting a quality (QoC) of the plurality of contextual data in a filter chain of the context channel;
In the filter interface of the filter chain, converting the raw status data assigned to each channel by the channel selection unit into qualified data according to quality criteria of each situation data (QoC criteria) ; And
Further comprising, at a filter interface of the filter chain, passing the transformed data to a next filter. ≪ RTI ID = 0.0 > 31. < / RTI >
11. The method of claim 10,
Further comprising the step of mapping the IDs of the primitive situation data to the IDs of the corresponding context channels in the context channel mapping table of the smart situation distribution framework apparatus,
The step of allocating the raw situation data for each channel
And allocating the primitive state data for each channel by referring to the context channel mapping table.
11. The method of claim 10,
The step of allocating the situation data for each channel
Receiving raw situation data from an external data provider;
Allocating a context primitive set to the all context channels using the object Internet messaging service and collecting the received primitive status data,
The step of transmitting the status data to an application associated with a subscriber of the channel
Each of the context primitives in the context primitive set allocated to all the context channels integrates the raw data sets constituting the context primitive into one message and allows all the subscribers registered in the channel to be delivered through the application Wherein the smart messaging service is a smart messaging service.
11. The method of claim 10,
Wherein the status channel unit assigns at least one access level of an open type, an access-limited type, and a group type to each of the plurality of channels, Further comprising the step of providing the subscriber's channel authentication function for subscribing to the status data. ≪ RTI ID = 0.0 > 11. < / RTI >
delete delete 11. The method of claim 10,
In the filter chain interface of the filter chain, adding a filter to a specific location in the filter chain, or deleting or replacing a filter at a particular location with a new filter; And
Further comprising, in the filter chain interface of the filter chain, executing filters in the filter chain in order.

Images