KR101343358B1 - Electric Device Operating System And Method based on a Selective Discovery, and Portable Device supporting the same - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the operation of a selected search based host device, and more particularly, to a mobile terminal for generating and broadcasting a search request message including service type information defining a specific service type, a service type included in the search request message and its own device. A selective search-based host device operating system comprising at least one host device that mutually computes a profile and delivers a device profile as a response message to the portable terminal, a method for operating the same, and a portable terminal supporting the same. Start the configuration.

Description

Electric device operating system and method based on a selective discovery, and portable device supporting the same}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a search for a plurality of host devices having a communication network, and in particular, a selection search-based host device operation that enables a mobile terminal to search only desired host devices in a state in which communication with a plurality of host devices is possible. A system and method and a portable terminal supporting the same.

The advent of smart phones and the advancement of WPAN technology in the form of ad-hoc networks such as NFC and Bluetooth are enabling various benefits and new types of services that users can enjoy through home appliances. The paradigm upon which these services are based is that smartphones and consumer electronics make relationships and collaborate within the same network. In this paradigm, users can use their smartphones to control home appliances in their homes or share content between smartphones and home appliances. For such interactions, the discovery technique that connects smartphones and peripheral appliances into one network has become an important issue. Currently, the discovery method of peripheral devices through smartphones generally focuses on “space” and “distance” to discover all available peripheral devices within the same space as the smartphone or within the effective signal reach distance. However, such a method is inconvenient because the user has to check a large number of devices and consider whether the peripheral device is suitable for the desired service and must select one or several of them. In addition, depending on the characteristics of the service, even the peripherals that are not likely to be used must be managed, so the process for them can be considered wasteful. In order to improve such inconvenience and inefficiency, a discovery technique that intelligently detects the intention of the user and searches only the necessary peripheral devices is needed.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to operate a selective search-based host device for performing a selective search based on a user service for a mobile terminal and peripheral host devices. A system and method and a portable terminal supporting the same are provided.

The present invention provides a mobile terminal or a specific host device for generating and broadcasting a search request message including service type information defining at least one specific service type, the service type included in the search request message and its own device. Disclosing a configuration of a selective search-based host device operating system, characterized in that it comprises at least one host device that interoperates the profile and accordingly the device profile as a response message to the mobile terminal or a specific host device .

Herein, the mobile terminal or the specific host device displays a display unit for outputting a message creation window for selecting the service type, a short range communication module for broadcasting the search request message, and a list of searched host devices based on the device profile received from the host device. And a control unit configured to control to output the host device list.

The service type has a type type including at least one of a V indicating whether the video function is supported, an H indicating whether the audio function is supported, a C indicating whether the control function is supported, and an S indicating whether the sensor-based operating function is supported. According to the feature it can be classified into a maximum of 128 service types.

Whether the service type information is supported may be defined according to a description of 0 or 1 value of 1 bit allocated to each of the service types.

The host device performs an “And” operation on the device profile defined by at least one of the service types and the service type information, and when the value of 1 corresponding to “True” is present in the operation result, the host device sends the response message. It can transmit to the portable terminal.

In addition, when there is no response message received from the host device, the mobile terminal or a specific host device may output a message corresponding to a device search failure.

The present invention also provides a mobile terminal, comprising: generating a search request message including service type information defining a specific service type; broadcasting the generated search request message to peripheral host devices; A computing step of mutually computing the service type included in the device profile and its own device profile, and transferring the device profile as a response message to the portable terminal according to the operation result, wherein the portable terminal receives the received device profile Disclosed is a configuration of a method for operating a selection search based host device, including generating and outputting a list of selected and searched host devices based on the result.

In the generating of the search request message, the mobile terminal outputs a message creation window for creating a search request message, and each service type for searching for whether at least one service is supported according to an input signal input from an input unit of the mobile terminal. The method may include configuring service type information defined with a bit value of 0 or 1, and generating a search request message including the service type information.

The calculating may be a step of “And” calculating a device profile defined by 0 or 1 and the service type information according to whether at least one of the service type information is supported.

Meanwhile, the transmitting may be a step of transmitting the response message to the mobile terminal when at least one value of 1 corresponding to “True” exists in the operation result.

The method may further include outputting, by the portable terminal, a message corresponding to a device search failure when no response message is received from the host device.

The present invention also includes a short-range communication module that forms a communication channel with peripheral host devices, and service type information defined according to description of a 0 or 1 value of a pre-allocated bit whether or not a service of each of the peripheral host devices is supported. A controller configured to generate a search request message and transmit the search request message to the peripheral host device, and generate a list of selected and searched host devices based on the device profile for the search request message from the peripheral host device; It may include a display unit for outputting.

In this case, the display unit may output a message composition window for selecting each service type information for selecting the requested service type information and searching for a neighboring host device supporting the corresponding service type.

The controller may control to automatically compose and broadcast the search request message by checking service type information of a corresponding list when selecting one of contents or a user function list of a specific service type displayed on the display unit.

As described above, according to the selective search based host device operating system and method and the portable terminal supporting the same, the present invention can search only the host devices supporting the service type that the portable terminal user wants to use. This saves searching time and saves power for searching.

1 is a diagram schematically illustrating a configuration of a host device operating system based on a selection search according to an exemplary embodiment of the present invention.
2 is a view showing in more detail the configuration of a mobile terminal according to an embodiment of the present invention.
3 is a more detailed view of the configuration of the control unit of Fig.
4 is a view for explaining an example of a screen interface of a mobile terminal according to an embodiment of the present invention.
5 is a diagram illustrating a response according to a selective search of host devices according to an exemplary embodiment of the present invention.
6 is a diagram for explaining the structure of a search request message frame.
7 is a view for explaining a calculation process for sending a response message from the host device.
8 is a diagram for explaining a response message frame structure of a host device.
9 is a flowchart illustrating a method of operating a mobile terminal in a method of operating a host device based on selection search according to an embodiment of the present invention.

Hereinafter, in describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and are not directly related to the present invention will be omitted. In addition, detailed description of components having substantially the same configuration and function will be omitted.

For the same reason, some of the elements in the accompanying drawings are exaggerated, omitted, or schematically shown, and the size of each element does not entirely reflect the actual size. Accordingly, the present invention is not limited by the relative size or spacing depicted in the accompanying drawings.

Meanwhile, in the following description, the system, terminal, and method of the present invention can be applied in an environment in which an ad-hoc type local area network is an ad-hoc type short-range wireless network and a portable terminal and peripheral appliances use an ad-hoc networking interface using the same protocol. have.

The present invention provides a selective discovery function that finds an optimal device suitable for a service type desired by a user by minimizing user intervention when cooperating with a home appliance using a portable terminal.

In the following description, the present invention is divided into four types of services provided by a peripheral device for selective discovery. The four service types are Visible service [V] which provides a viewable image or image, Audio service [H] which provides audible sound or audio, control service [C] which can control other services, This is defined as a sensor service [S] that responds to changes in movement or the environment. Each service type exists as a continuous '1 bit' in the device profile of the peripheral device as shown in Table 1.

1 bit 1 bit 1 bit 1 bit V H C S

A service that can be provided by a neighboring host device in the device profile has a value of a corresponding service type set to '1', and a service that cannot be provided is set to '0'. The user selects a desired service using the mobile terminal to search for a peripheral device. Here, although four types of services described in the present invention are described, this is merely an example and the present invention is not limited thereto. As will be described below, the SSP size defining the service type is allocated to 16 bytes. As a result, the service type to which the present invention is applied may have a maximum of 128 service types.

Here, the service types are classified into four types and letter assignments such as V, H, C, and S are assigned to classify the classification. However, in the 128 service type classifications, each service type is classified by not only letters but also numbers, compound letters or compound numbers. It can also be assigned to distinguish the classification of. In addition, the SSP size defining the service type may be less than or greater than 16 bytes. If the SSP size is changed, the service type may be defined by the number of bits belonging to the size. In addition, the following example illustrates that one bit is used to define one service type, but two bits or more may be used to define one service type.

The user can select a plurality of desired services. The mobile terminal sets only the service type selected by the user to '1' and then sends the search request message to the surrounding host apparatus by including the set 4 bits in the message. Upon receiving the search request message, the neighboring host device 'AND' calculates a service type registered in its device profile and a service type included in the search request message. The "AND" operation means to perform an "&" operation on a computer bit by bit. If the result of the 'AND' operation is '0', it is defined as false. In this case, True may be defined to mean that the peripheral host device provides at least one service desired by a user. The peripheral host device whose operation result is true transmits its own device profile information to the mobile terminal.

The present invention implemented in this manner can additionally provide not only services desired by the user but also unexpected services. When the service desired by the user is VH, VHCs and VHs of the searched host devices may independently perform services, but HCs may perform services in cooperation with V. For example, a user watching a movie on a mobile terminal may want to watch a screen on a TV in a house and hear a sound through a speaker. In this case, even if the TV supports both video and sound, the service automatically supports speakers for sound playback.

Hereinafter, the components, roles, and functions of the host device operating system and method based on the selection search according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically illustrating a configuration of a host device operating system 10 based on a selection search according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the selective search-based host device operating system 10 of the present invention may include at least one peripheral host device 200 and a portable terminal 100 for selectively searching the peripheral host devices 200. It can include a configuration.

The host device operating system 10 of the present invention having such a configuration broadcasts a search request message defined by the mobile terminal 100 according to a user input to the at least one host device 200. ) May selectively support the host devices 200 to be operated by the user.

The host devices 200 may be configured to include communication modules that can communicate with the mobile terminal 100 and transmit and receive data between the devices, and an operation module according to a corresponding device characteristic. The host devices 200 may include, for example, various types of devices, such as a TV device, an audio device, a home theater, a washing machine, a microwave oven, an air conditioner, a heater, an MP3 player, a PC terminal, a laptop computer, and a game machine. have. The host apparatus 200 includes all the electronic devices searchable by the mobile terminal 100, and there is no limitation on the services or the unique functions provided by the electronic devices. In particular, the host devices 200 may be classified into four service types as described above. That is, the host devices 200 may be classified into service types such as a video supportable device, an audio supportable device, an operating device based on a control function, and a sensor-based operating device. In this case, specific host devices may be classified into four service types. Can belong to a combination. On the other hand, when the type of service type is increased in the host device operation based on the selection search, the host devices 200 may also be classified into more detailed service types according to the service type classification, and may belong to the divided service types. will be.

Meanwhile, in the above description, the peripheral host devices 200 will be described as TV devices, audio devices, home theaters, washing machines, microwave ovens, air conditioners, radiators, MP3 players, PC terminals, laptop computers, game machines, etc., but the present invention is limited thereto. It doesn't happen. That is, although the peripheral host device 200 of the present invention is shown in a form including a refrigerator, a TV, a washing machine, a computer, and the like, the present invention is not limited thereto, and more various host devices, for example, an electric blanket and a bed using electricity are used. A fan, a dryer, and an electronic oven may be further included. In addition, the peripheral host device 200 may be limited to devices constituting specific host devices, for example, an electronic clothing communication network, according to the form of the selective search function supporting communication network of the present invention.

In the following description, the service type index of the video capable device is “V”, the service type index of the audio capable device is “H”, the service type index of the control function operating device is “C”, and the service type index of the sensor based operating device. Is defined as "S". In this case, as described above, devices that may belong to a combination may be defined in a manner of describing each index in a complex manner. For example, "VH" may be defined as a device capable of supporting video and audio such as a TV, etc. "VHC" is a device capable of operating both video, audio and control functions, for example, a PC terminal. It can be defined to represent various host devices, such as laptop computers.

The mobile terminal 100 searches for the host devices 200 but selectively searches for some host devices according to a user input. The mobile terminal 100 connects to at least one host device among devices found according to a user's selection or a preset setting, so that any one of a predetermined content, that is, a video support function, an audio support function, a control operation function, and a sensor operation function, can be connected. You can tell it to do one. In particular, the mobile terminal 100 of the present invention broadcasts a search request message defined by a user, and makes it possible to selectively search only the host devices 200 that provide a device profile in response to the search request message. Unnecessary search of many peripheral host devices can be suppressed and only the host devices that meet the user's needs can be supported. Detailed configurations of the mobile terminal 100 will be described with reference to FIGS. 2 and 3.

2 is a block diagram illustrating in more detail the configuration of the mobile terminal 100 according to an embodiment of the present invention.

Referring to FIG. 2, the mobile terminal 100 of the present invention includes a short-range communication module 110, an input unit 120, an audio processor 130, a display unit 140, a storage unit 150, and a controller 160. It may include.

The portable terminal 100 of the present invention having such a configuration supports the creation of a search request message based on the input unit 120 or the display unit 140 of the input function, and uses the short range communication module 110 based on the created search request message. To transmit to the surrounding host devices 200. The mobile terminal 100 may receive a device profile as a response to the search request message from the peripheral host devices 200. In this case, the peripheral host devices 200 that the mobile terminal 100 receives the device profile may be host devices that support a specific service type requested by the user. Accordingly, the mobile terminal 100 of the present invention can selectively search only the host devices related to the service type that the user wants to operate.

The short range communication module 110 is a component that supports a communication function of the mobile terminal 100. In particular, the short-range communication module 110 may establish a communication channel for transmitting / receiving data with the peripheral host devices 200 and may broadcast a search request message input by a user to the peripheral host devices 200. The short-range communication module 110 selectively searches for a host device for supporting a function of a service type currently desired by a user based on a device profile transmitted by at least one host device supporting the function of a service type requested in a search request message. I can support them. The short range communication module 110 may be compatible with a communication module built in the peripheral host devices 200 or may be configured as a communication module of the same type. In particular, the short-range communication module 110 of the present invention is not limited to a specific communication method or a specific communication module, but may transmit the search request message described above and receive a device profile as a corresponding search response message. Any communication module of can be applied.

The input unit 120 is a component that generates various input signals required for operating the mobile terminal 100. The input unit 120 may be configured with various input means such as a keyboard, a keypad, a key button, or the like depending on whether the portable terminal 100 is designed. In addition, the input unit 120 may be implemented in the form of a touch map that is output on the touch screen when the display unit 140 is provided as a touch screen. That is, the display unit 140 of the touch screen function may support the input unit 120 function. In addition, when the display unit 140 is configured in the form of a full touch screen, the input unit 120 may be implemented as a side key or a home key. The input unit 120 may generate an input signal for supplying power to the portable terminal 100, an input signal for writing a search request message for searching the peripheral host device 200, and an input signal for transmitting the search request message. . In addition, when a device profile is received according to a search request, the input unit 120 may generate various input signals such as an input signal for checking a host device list based on the corresponding device profile according to a user request. The generated input signals may be transmitted to the controller 160 and applied as a command for operating at least one host device of the present invention.

The audio processor 130 may include a speaker SPK capable of outputting an audio signal and a microphone MIC capable of collecting an audio signal. The audio processor 130 supports an audio signal collection function according to an output of an audio signal and a communication function generated according to various user function operations of the portable terminal 100. In particular, the audio processor 130 of the present invention may output various audio data generated during the selective search process of the host devices 200. For example, the audio processor 130 may support an output of a notification message for notifying a result of at least one peripheral host device selection search during the selection search of the host devices 200. The audio processor 130 may output a guide message corresponding to the result if the result of the peripheral host device selection search exists. The user can more easily check the progress of the selection search based on this audio data output. Meanwhile, the above-described audio data output function for the selective search may be omitted according to a user setting or a designer's intention.

The display unit 140 is a component that provides various screen interfaces required for operating the mobile terminal 100. The display unit 142 may be configured of various flat display devices such as a liquid crystal display and an OLED. In addition, the display unit 142 may be configured in the form of a touch screen including a display panel and a touch panel to operate as an input means as described above. Meanwhile, the display unit 140 may support various screen interfaces for supporting selective search of the peripheral host devices 200 of the present invention. For example, the display unit 140 may output a search request message creation screen required for selective search support, a device profile collection screen according to the created search request message broadcast, and the like. The display interface based on the display unit 140 will be described in more detail with reference to the accompanying drawings.

The storage unit 150 may store various basic operating systems, various application programs, algorithms, and the like necessary for operating the mobile terminal 100. In particular, the storage unit 150 may include an SDOPA 151 (Selective Discovery Operation Providing Application) for supporting selective search of the present invention. The SDOPA 151 includes various routines to support selective search of the peripheral host devices 200 of the present invention. For example, the SDOPA 151 may include a creation screen output routine for creating a search request message, a routine for generating a search request message for searching for a function supporting host device of a specific service type according to an input signal input from the input unit 120, etc .; It may include a routine that supports to broadcast the generated search request message to the peripheral host devices (200). In addition, the SDOPA 151 configures a routine for collecting device profile information of host devices that provide device profile information among the peripheral host devices 200 as a search response message, and a list of selected and searched host devices based on the collected device profile information. And a routine for outputting a list of selected and searched host devices.

The controller 160 is a component that controls various signal flow control, information collection and output, etc. in order to support a selective search function according to an exemplary embodiment of the present invention. The controller 160 may support the selective search of the peripheral host devices 200 based on the search request message input by the user. For this, the control unit 160 may include a configuration as shown in FIG.

3 is a view showing in more detail the configuration of the controller 160 of the present invention.

Referring to FIG. 3, the controller 160 of the present invention may include a configuration of the message compose unit 161, the message transceiving unit 163, and the selective search result output unit 165.

The message creating unit 161 is a component that supports the creation of the selective search request message of the present invention. The message composer 161 may support to output the message compose window to the display 140 when the user selects a menu item for operating the selective search function of the present invention in the process of operating the portable terminal 100. The controller 160 may output a menu item for selecting a selection search function of the present invention to the display unit 140 or assign a specific key as a hot key for activating the selection search function. Meanwhile, the message composition unit 161 may support the user to select at least one of four items related to the service type to be executed while outputting a message composition window. The message composition window supported by the message generator 161 will be described in more detail with reference to the screen interface example described later.

The message transmitter / receiver 163 is configured to transmit the search request message created by the message generator 161 to the peripheral host devices 200. To this end, the message transmission / reception unit 163 may control to automatically activate the short range communication module 110 when a search request message is created through the message composition window. The message transceiver 163 may broadcast a search request message created based on the activated short-range communication module 110. Meanwhile, the message transmitting / receiving unit 163 waits to receive the device profile as a response message to the search request message within a predetermined time after transmitting the search request message. To this end, the message transceiver 163 may drive a timer. When receiving the device profile before the timer is completed, the message transmitting / receiving unit 163 may transmit an Ack according to the device profile reception to the corresponding host device, and then reset the timer. The message transceiver 163 may complete the device profile collection according to the broadcast of the search request message when the timer expires. The message transceiver 163 may transfer the collected device profile information to the selection search result output unit 165.

The selection search result output unit 165 generates a list of selected and searched host devices based on the information received from the message transmitting and receiving unit 163. In addition, the selective search result output unit 165 may support to output the generated host device list to the display unit 140. Meanwhile, the selective search result output unit 165 may support to output a message corresponding to the non-collection of the device profile information to the display unit 140 when the device profile information is not received from the message transceiver 163 and when the timer expires. have.

4 is a diagram illustrating an example of a screen interface of a mobile terminal 100 according to an exemplary embodiment of the present invention.

The user of the mobile terminal 100 may request to operate a function corresponding to a service type based on at least one of the peripheral host devices 200 at a predetermined location, for example, a home or an office, in which the peripheral host devices 200 are disposed. have. In this case, the user may want to search only the host device related to the service type function that the user wants to use. Then, the user of the mobile terminal 100 activates the mobile terminal 100 and activates the selective search function using a menu. Then, the mobile terminal 100 may output the search request message creation window to the display unit 140 as shown in the screen 401. The search request message composition window may be a selection screen for selecting V, H, C, and S divided into four service types. In this case, the search request message creation window may support to output a radio button map for selecting each item to the display unit 140 to facilitate selection of the divided V, H, C, and S. In the illustrated 401 screen, only the index is output to represent each item, but the present invention is not limited thereto. That is, the search request message creation window of the present invention may output information to the display unit 140 in detail to indicate what type of service each item represents. The user can then complete the creation of a search request message for searching for a peripheral host device by selecting a toggled radio button. Here, when each item is selected and an input signal for completing a search request message is generated, the mobile terminal 100 may support to output the created search request message preview screen to the display unit 140.

When the writing of the search request message is completed, the mobile terminal 100 may broadcast the created search request message to the peripheral host devices 200. In this process, the mobile terminal 100 may output a screen corresponding to the search request message broadcast, and thus the user may confirm that the search request message is being broadcast. The mobile terminal 100 may drive the timer as described above along with the transmission of the search request message. Accordingly, the mobile terminal 100 may support the display unit 140 to output time information between the search request message broadcast and the response message. Then, the user may check how much time remaining for data transmission and reception among the selective search function is required by checking the corresponding time information.

Meanwhile, the mobile terminal 100 may receive device profile information as a response message according to a search request message broadcast. Alternatively, the mobile terminal 100 may not receive device profile information from the peripheral host devices 200. First, when the device profile information is received, the mobile terminal 100 may output the selected searched host device list as the received device profile information as shown on a screen 403. For example, when V and H items are selected when a search request message is written, the mobile terminal 100 may output a list of host devices supporting at least one of V and H service types. That is, the mobile terminal 100 outputs a list of host devices supporting V and H functions, host devices supporting V and H functions, host devices supporting V functions, and host devices supporting H and C functions. can do. To this end, peripheral host devices corresponding to the above-described items are arranged around the mobile terminal 100.

When the device profile information is not received, the portable terminal 100 may support to output a message indicating that there is no host device found on the display unit 140 as shown on a screen 405. In addition, the mobile terminal 100 may control to automatically perform a selective search of the peripheral host devices 200 at least a predetermined number of times according to a preset setting or at a user request. Such a redo function may be omitted according to user settings.

In the above description, a user writes a search request message by way of example, but the present invention is not limited thereto. That is, when the user selects a specific content or a user function of the mobile terminal 100, the portable terminal 100 supporting the selective search function of the present invention may support to automatically create a search request message corresponding to the corresponding function. . For example, when the user selects a page including content items for operating a specific user function of the mobile terminal 100, the mobile terminal 100 displays a list screen on which the content items are displayed on the display unit 140 as shown on screen 407. FIG. It can support output. That is, the portable terminal 100 may include an MP4 file supporting a video / audio function, a JPG file supporting only a video function, and MP3 files supporting only an audio function, as shown.

When the user selects a specific content item, such as an MP4 file, on the display screen, the mobile terminal 100 may check a service type attribute of the selected file and automatically create a search request message corresponding thereto. In this case, the mobile terminal 100 may output the created search request message as shown on the 401 screen. Alternatively, the mobile terminal 100 may support to automatically search the peripheral host devices 200 based on a search request message written without a 401 screen output process.

To this end, the controller 160 of the mobile terminal 100 may determine which service type of the search request message corresponds to the content selected by the user or the user function of the mobile terminal 100. Each content or user function supported by the mobile terminal 100 may store information defining a service type and provide the same according to a request of the controller 160.

Meanwhile, although the configuration of the search request message creation window supports the selection of at least one service type among the four service types, the service type is divided into more various types, that is, divided into four or more service types. The search request message composition window may be configured to support the selection of a greater number of service types. In addition, if the service type is less than four, for example, if there are three, the search request message creation window may also be configured in a form that can select at least one of the three service types correspondingly. Accordingly, the selective search-based host device operation according to the present invention supports searching for host devices classified into at least one service type according to a selected service type and performing a connection with specific host devices based on the search results. It can be understood in form.

5 is a diagram illustrating a selective search of peripheral host devices 200 according to an embodiment of the present invention, FIG. 6 is a diagram illustrating a frame form of a search request message, and FIG. 7 is a service of a host device. It is a figure for explaining a type operation. 8 is a diagram for explaining a frame form of a response message.

4 to 8, when the user of the mobile terminal 100 selects “V and H” as a service type or an input signal for operating “V and H” in association with a neighboring host device is generated. The mobile terminal 100 may generate a search request message including “V and H” as service type items. As described above, the mobile terminal 100 may transmit the corresponding search request message to the peripheral host devices 200.

At this time, the search request message transmitted may include a “Data Type, Data size, SSP Size, SSP, Operation” field as shown in FIG. 6. Here, the Data Type field is a field indicating a frame characteristic and is expressed in bits and may have a different value according to a situation. The structure of the DATA field can be changed according to the data type. The upper 4 bits of the data type having 8 bits are defined as reserved. Two bits of the lower four bits may indicate the purpose of the message, and the remaining two bits may indicate a reception state of the frame. The Data Size field is a field indicating the number of bytes of the payload and may have a value between at least 0 and 18. When the size of the SSP is 0, it may be regarded as not including data and may be written as "0". The SSP Size field is a field indicating the number of bits of the SSP and has a value between 0 and 128. This SSP Size field may be divided into one reserved Reserved 1 bit and 7 bits representing the actual SSP Size. The Selective Standard Profile (SSP) field defines selection search criteria as a device profile. These SSP fields are divided into 1-bit units and up to 128 can be represented when 16 bytes are used. The Operation field indicates an operation symbol for operating the SSP owned by the host receiving the frame and the SSP in the frame and may have an ASCII code value of “&” or “|”.

Meanwhile, the host devices receiving the above-described search request message frame collect service type information described in the SSP field of the corresponding search request message, and mutually compute the collected service type information and their device profile information as shown in FIG. 7. do. In this case, the host devices may check the operation field included in the search request message frame to collect operator information. That is, the host devices may perform “And” operation on the predefined device profile information and the service type information included in the search message. For example, when the host device supports the audio support function and the control operation function, the device profile information may have V of 0, H of 1, C of 1, and S of 0. The service type information of the search message is defined by the user, and V may be 1, H is 1, C may be 0, and S may be 0. Accordingly, the host device may calculate “0100” as a result of the “And” operation of the two pieces of information. Then, the host device may recognize itself as a device requested by the mobile terminal 100 when there is at least one “True (1)” in the calculation result.

The host device having “True” in the operation result may transmit a response message having a frame structure as shown in FIG. 8 to the mobile terminal 100 as a response to the search request message. In more detail, the response message may be configured as a frame having a “Data Type, Data Size, Profile” field. Herein, the Profile field may be further divided into “SSP Size, SSP, Profile Size, and Profile” fields. The Profile Size field is a field indicating the number of bytes of the Profile and has a value between 0 and 80. The Profile field may include various information related to the host device such as address information of the host device and the name of the host device or information that is variably changed according to a communication network formed between the peripheral host devices.

As a result, the peripheral host devices 200 include the VH function support device 201, the S function support device 202, the VHC function support device 203, the V function support device 204, the C function support device 205, In the case of the HC function supporting device 206, when the mobile terminal 100 performs a device search that supports the “V and H” service types, the VH function supporting device 201, the VHC function supporting device 203, and the V function are performed. The support device 204 and the HC function support device 206 may transmit a response message to the mobile terminal 100. Then, the mobile terminal 100 generates a list of selected and searched host devices using the device profile included in the response message received from the host devices 201, 203, 204, and 206 described above, and outputs the list to the display unit 140. Can support

9 is a flowchart illustrating a method of operating a mobile terminal in a method of operating a host device supporting a selective search function according to an exemplary embodiment of the present invention.

Referring to FIG. 9, in the method of operating a mobile terminal for supporting the selective search function of the present invention, first, the control unit 160 of the mobile terminal 100 uses the power supplied from the power supply unit in step 901 of the mobile terminal 100. Support to activate each configuration. Thereafter, the controller 160 checks whether an input signal for activating the selective discovery (SD) function is generated in step 903. In this step, if the input signal is not the input signal for activating the SD function, the controller 160 branches to step 905 to control the signal flow to perform a user function corresponding to the input signal. For example, the controller 160 may support a user function according to an input signal such as a file play function, a file search function, a call function, a web access function, etc. according to whether the portable terminal 100 supports the function.

If an input signal for activating the SD function is generated in step 903, the controller 160 branches to step 907 to create a search request message and perform a broadcast. To this end, the controller 160 may support to output a message creation window for creating a search request message to the display unit 140. In addition, a search request message may be created based on the service type information selected by the user, and the local area communication module 110 may be activated to broadcast to the neighboring host devices 200. Meanwhile, as described above, when the user selects specific content or a specific user function to operate the SD function, the controller 160 checks service type information of the corresponding content or user function, and automatically creates and broadcasts a search request message based on the service type information. It can help to do this.

Next, when receiving a device profile from the host devices as a response message, the controller 160 collects the corresponding device profile information in step 909 to generate a selective search host device list, and outputs the generated list to the display unit 140. Can be. In this case, the controller 160 may not receive device profile information from peripheral host devices. In operation 909, the controller 160 may control to output a message indicating failure of the selection search of the host devices. The controller 160 may control to loop back to step 903 or 907.

As described above, the method for operating a selective search based host device according to an embodiment of the present invention supports the mobile terminal 100 to search only host devices having a service type desired to be searched, thereby suppressing unnecessary host device search. To help.

Meanwhile, in the above description, the selective search between the mobile terminal 100 and the plurality of host devices 200 corresponding to the peripheral electronic device has been described. However, the portable terminal 100 also includes one of the peripheral host devices 200. It may be any one, and a specific host device included in the host devices 200 may perform the above-described role of the mobile terminal 100. For example, if a user wants to operate specific content using a TV corresponding to a specific host device among the host devices 200, the user may search for other host devices that may be connected to the TV by operating the TV, but the user may want to operate the specific content. Host devices supporting the service type may be selectively searched as a result of message creation and transmission and a response according to service type selection. Therefore, the present invention can be applied to the operation of the host device based on the selection search between the peripheral host device and the remaining host devices in the same manner as the mobile terminal 100. As described above, the portable terminal 100 may be included in the peripheral host devices.

Accordingly, the TV may include the mobile terminal 100 as a search target to search for the selective search that may be connected to the TV. To this end, various configurations described in the mobile terminal 100 configuration for selecting and searching for a specific host device, that is, a peripheral host device corresponding to the TV, may include, for example, a local area communication module, a storage unit, a controller, a display unit, and the like. Can be. The specific host device searching only specific host devices among neighboring host devices may provide a function supported by the mobile terminal 100, for example, if there is no response message received from the host device, a message corresponding to a device search failure. Output function can be supported.

The host device may also have a discovery function. The host device may discover another host device in synchronization with a control signal of the mobile terminal 100. In this case, the host device may support the selective discovery function. For example, the host device may discover another host device that supports the same service type as the host device. If another host device supporting the same service type is discovered, the discovered host device may provide the service provided by the host device. Alternatively, a specific host device may replace the discovery operation of the mobile terminal with the discovery function for the host device within the specific coverage. In this case, the portable terminal supports only an interface function for selective discovery, and the discovery task may be replaced by the specific host device.

Meanwhile, the portable terminal 100 may further include various additional modules according to the providing mode. That is, when the mobile terminal 100 is a communication terminal, an interface for data transmission and reception by a wired communication method or a wireless communication method of the mobile terminal 100, an internet communication module and a digital broadcast reception for communicating with an internet network to perform an internet function, and It may further include components not mentioned above, such as a digital broadcasting module for performing a reproduction function. These components can not be all enumerated due to the wide variety of variations according to the convergence trend of the digital device, but it is possible that the device includes an additional level of components equivalent to the mentioned components. Also, it is needless to say that the portable terminal 100 according to the present invention may be excluded from the specific configurations or may be replaced with other configurations according to the providing mode. Which will be readily apparent to those skilled in the art.

In addition, the portable terminal 100 according to an embodiment of the present invention may include all types of devices that support a communication function with peripheral host devices. For example, the portable terminal 100 includes all mobile communication terminals operating in accordance with communication protocols corresponding to various communication systems, as well as a portable multimedia player (PMP) and a digital device. All information communication devices and multimedia devices such as broadcasting players, PDAs (Personal Digital Assistants), music players (eg MP3 players), portable game terminals, smart phones, notebooks, handheld PCs, and applications thereof It may include a device.

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. , And are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention may be practiced without departing from the scope of the invention disclosed herein.

10: host device operating system
100: portable terminal 110: short-range communication module
120: input unit 130: audio processing unit
140: Display unit 150:
151: SDOPA 160: control unit
161: message creation unit 163: message transmission and reception unit
165: Selective search result output unit
200, 201, 202, 203, 204, 205, 206: host device

Claims (14)

A mobile terminal or a specific host device generating and broadcasting a search request message including service type information defining at least one specific service type to be used by a user;
A device comprising information about at least one service type supported by a corresponding host device based on a result of mutually computing a device profile including information on a service type included in the search request message and a service type that can be provided by the host device. At least one host device for transferring a profile to the mobile terminal or a specific host device as a response message;
Selective search based host device operating system comprising a. The method of claim 1,
The mobile terminal or a specific host device
A display unit for outputting a message creation window for selecting the service type;
An input unit for selecting the service type;
A short range communication module for broadcasting the search request message;
A host controlled to broadcast the search request message including service type information configured according to an input of the input unit through a short range communication module, and selected and searched based on a device profile received from the host device as a response message to the search request message; A controller configured to configure a device list and to output the host device list through a display unit;
Selective search based host device operating system comprising a. The method of claim 1,
The service type is
It has a type type consisting of at least one of V indicating video function support, H indicating audio function support, C indicating control function support, and S indicating sensor based operation function support. Selective search based host device operating system, characterized in that can be classified by service type. The method of claim 3,
The service type information is
Selective search-based host device operating system, characterized in that whether or not each service type is supported according to the description of the 1-bit 0 or 1 value assigned to each of the service type. 5. The method of claim 4,
The host device
“And” operation is performed on the device profile defined by at least one of the service types and the service type information, and when the value of 1 corresponding to “True” is present in the operation result, the response message is transmitted to the mobile terminal. Selective search based host device operating system, characterized in that the. The method of claim 1,
The mobile terminal or a specific host device
And outputting a message corresponding to a device search failure when there is no response message received from the host device. Generating, by the mobile terminal, a search request message including service type information defining at least one specific service type to be used by a user;
Broadcasting the generated search request message to peripheral host devices;
Computing, by the host device, a device profile including information about a service type included in the search request message and a service type supported by the host device;
A delivery step of delivering, by the host apparatus, the device profile as a response message to the portable terminal according to the operation result;
Generating and outputting, by the portable terminal, a list of host devices selected and searched based on the received device profile;
Selective search based host device operating method comprising a. The method of claim 7, wherein
The search request message generation step
Outputting, by the portable terminal, a message composition window for creating a search request message;
Configuring each service type bit value for retrieving at least one service support bit with service type information defined as 0 or 1 according to an input signal input from an input unit of the portable terminal;
Generating a search request message including the service type information;
Selective search based host device operating method comprising a. The method of claim 7, wherein
The calculating step
Selective search base, characterized in that at least one of the service type information is a "And" operation of the device device profile defined by 0 or 1 and the service type information included in the search request message according to whether the host device supports or not; How to operate the host device. 10. The method of claim 9,
The delivery step
And transmitting the response message to the mobile terminal when at least one value of 1 corresponding to “True” is present in the operation result. The method of claim 7, wherein
Outputting a message corresponding to a device search failure by the mobile terminal when there is no response message received from the host device;
Selective search based host device operating method further comprising. A short range communication module forming a communication channel with peripheral host devices;
Generate and transmit a search request message including service type information defining at least one specific service type to be used by a user to the peripheral host device, and send the peripheral host device as a response message to the search request message from the peripheral host device; A controller configured to generate a list of searched host devices based on the received device profile including information on a service type supported by the device;
A display unit for outputting the host device list;
Selective search-based host device operation support mobile terminal comprising a. The method of claim 12,
The display unit
Under the control of the control unit, selecting a service type information for selecting the requested service type information, characterized in that for outputting a message creation window for supporting the search for a peripheral host device that supports the service type Search-based portable terminal for host device operation. The method of claim 12,
The control unit
When selecting any one of contents or user function list of a specific service type outputted to the display unit, the service type information of the corresponding list is checked to control to automatically compose and broadcast the search request message. Host device operation support mobile terminal.

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