Abstract: Disclosed are a method of estimating PV model parameters and a method and an apparatus for data-based PV fault detection and diagnosis using a PV model. The method comprises: substituting five parameters of a PV current, a diode saturation current, a diode ideality factor, a series resistance, and a parallel resistance into an output equation of a single diode model for PV modeling of a PV module; computing an MAEP in an output by comparing power-voltage (P-V) curve values of the PV module obtained from the single diode model, which is a PV simulation model, and P-V curve values of the PV module, which is an actual PV module, when the voltage is zero, the open-circuit voltage, or a specific data value increased as much as a preset intensity; and selecting parameters representing a minimum MAEP among a plurality of stored MAEPs as parameters of the PV simulation model.

Abstract: Disclosed are a shade detection and global maximum power point tracking method and apparatus for photovoltaic power conversion. The method comprises: setting an array voltage at a first duty and an array current at a second duty among data sheet values of a PV array of a PV module as a reference array voltage and a reference array current, respectively; calculating a MPP resistance of the PV array based thereon; calculating a duty to be applied to a switch of a boost converter of the PV module based on the MPP resistance; obtaining an actual array voltage and an actual array current of the PV array based on the duty; and determining whether a uniform shade case occurs based on the actual array voltage, the actual array current, and actual power.

Abstract: An apparatus and a method for registering a device in a cloud server are provided. The apparatus includes detecting the device by using short-range communication, requesting an authentication code used for registering the device in the cloud server from an account server in response to the device being detected, receiving the authentication code from the account server, and transmitting the received authentication code and connection address information of the cloud server to the device.

Abstract: A photovoltaic panel fault diagnosis method using a fault diagnosis algorithm in a photovoltaic system comprises modeling a photovoltaic system simulation model necessary for the fault diagnosis algorithm, defining fault scenarios and pre-processing through data normalization after creating and acquiring fault data in advance using the photovoltaic system simulation model, and utilizing scenario-specific fault data obtained through the data normalization with a machine learning method.

Abstract: An example terminal apparatus includes a communicator configured to communicate with at least one device through a hub device; a display configured to display an image; a user input receiver configured to receive a user's input; and at least one processor configured to control the display to display a dialog box where the hub device or the at least one device is set as a counterpart in response to execution of a messenger program, control the communicator to transmit a control signal including a command for controlling a predetermined device to the device targeted for control through the hub device so that the device targeted for control operates in response to the command corresponding to a user's input, and control the display to display a message corresponding to the transmitted command in the dialog box.

Abstract: An electronic device and a method for providing content within a home network are provided. The electronic device includes a communication interface that receives first content generated by a controlled device, and a processor configured to map the received first content to a target device to which the received first content is to be provided, acquire second content related to the first content, and when a content provision condition is met, transmit at least one of the first content and the second content to the target device.

Abstract: An apparatus and a method for registering a device in a cloud server are provided. The apparatus includes detecting the device by using short-range communication, requesting an authentication code used for registering the device in the cloud server from an account server in response to the device being detected, receiving the authentication code from the account server, and transmitting the received authentication code and connection address information of the cloud server to the device.

Abstract: An apparatus and a method for registering a device in a cloud server are provided. The apparatus includes detecting the device by using short-range communication, requesting an authentication code used for registering the device in the cloud server from an account server in response to the device being detected, receiving the authentication code from the account server, and transmitting the received authentication code and connection address information of the cloud server to the device.

Abstract: The present invention relates to a terminal apparatus and a controlling method thereof, the terminal apparatus including a communicator configured to communicate with at least one device through a hub device; a display configured to display an image; a user input receiver configured to receive a user's input; at least one processor configured to control the display to display a dialog box where the hub device or the at least one device is set as a counterpart in response to execution of a messenger program, control the communicator to transmit a control signal including a command for controlling a predetermined device to the device targeted for control through the hub device so that the device targeted for control operates in response to the command corresponding to a user's input when the user's input corresponding to the command is received in the displayed dialog box through the user input receiver, and control the display to display a message corresponding to the transmitted command in the dialog box.

Abstract: Provided herein is a portable terminal apparatus and a control method thereof, the method including registering at least one execution condition and execution command in the portable terminal apparatus; displaying an icon for the control; and in response to a select command regarding the icon being input, transmitting an execution command corresponding to an execution condition at a point where the select command regarding the icon is input to at least one peripheral device.

Abstract: A method for controlling a controlled electronic device by using an electronic device includes storing a group operation command including attribute information and operation information, the attribute information and the operation information corresponding to at least one controlled electronic device; and when the electronic device enters a network, transmitting the group operation command to at least one of a gateway, configured to manage the network, and at least one first controlled electronic device that is determined to correspond to the group operation command in the network, to perform an operation based on the operation information included in the group operation command.

Abstract: A server and a method of controlling a group action of the server are provided. The server can determine whether a conflict occurs between a first group action that is being executed and a second group action that is requested to be executed and determine at least one conflict solution, and the method controls the execution of the group actions by the server and the determination and communication of the conflict solution. The conflict can be determined by using group action characteristics of the first group action and the second group action.

Abstract: An electronic apparatus and a method of controlling a group action, the method being performed by the electronic apparatus are provided. An electronic apparatus and a method of controlling a group action, the method being performed by the electronic apparatus that is capable of creating the group action corresponding to a status change of an external apparatus and is also capable of controlling the external apparatus are provided. Some embodiments provide an electronic apparatus and a method of controlling a group action, the method being performed by the electronic apparatus that is capable of creating the group action corresponding to status information of an external apparatus, which is received from a server, and is also capable of changing a status of the external apparatus via the created group action.

Abstract: A user terminal device and a method for recognizing a user location using beacon signals of things are provided. The user terminal device for recognizing the user location includes a communication module configured to receive beacon signal information from things grouped into a plurality of space groups; and a processor configured to identify as a user location in a user space, a space group to which a thing corresponding to a beacon signal having a received signal strength indicator (RSSI) of more than a reference value form among RSSIs of beacon signals belongs, based on the beacon signal information. With this, the user terminal device may analyze the beacon signals of the things to recognize the user location in the user space, thereby controlling the things to be optimized for the user.

Abstract: A user terminal device and a method for recognizing a user location using beacon signals of things are provided. The user terminal device for recognizing the user location includes a communication module configured to receive beacon signal information from things grouped into a plurality of space groups; and a processor configured to identify as a user location in a user space, a space group to which a thing corresponding to a beacon signal having a received signal strength indicator (RSSI) of more than a reference value form among RSSIs of beacon signals belongs, based on the beacon signal information. With this, the user terminal device may analyze the beacon signals of the things to recognize the user location in the user space, thereby controlling the things to be optimized for the user.

Abstract: An apparatus and a method for registering a device in a cloud server are provided. The apparatus includes detecting the device by using short-range communication, requesting an authentication code used for registering the device in the cloud server from an account server in response to the device being detected, receiving the authentication code from the account server, and transmitting the received authentication code and connection address information of the cloud server to the device.

Abstract: An electronic device and a method for providing content within a home network are provided. The electronic device includes a communication interface that receives first content generated by a controlled device, and a processor configured to map the received first content to a target device to which the received first content is to be provided, acquire second content related to the first content, and when a content provision condition is met, transmit at least one of the first content and the second content to the target device.

Abstract: Provided herein is a portable terminal apparatus and a control method thereof, the method including registering at least one execution condition and execution command in the portable terminal apparatus; displaying an icon for the control; and in response to a select command regarding the icon being input, transmitting an execution command corresponding to an execution condition at a point where the select command regarding the icon is input to at least one peripheral device.

Abstract: An apparatus for avoiding a message collision between vehicle to vehicle (V2V) communications may include a channel busy percentage (CBP) determiner configured to determine a CBP and a controller configured to establish a data rate based on the determined CBP. When the CBP exceeds a preset reference value, the controller may adapt the data rate to an upper data rate. A method, system, and computer readable medium are further disclosed for performing the same.

Abstract: A method for controlling a controlled electronic device by using an electronic device includes storing a group operation command including attribute information and operation information, the attribute information and the operation information corresponding to at least one controlled electronic device; and when the electronic device enters a network, transmitting the group operation command to at least one of a gateway, configured to manage the network, and at least one first controlled electronic device that is determined to correspond to the group operation command in the network, to perform an operation based on the operation information included in the group operation command.