摘要:
A presentation apparatus includes: a communication connection establishing unit establishing a communication connection with a plurality of receiving terminals and a source terminal, the source terminal having a token corresponding to an authority of controlling a presentation; a presentation data relay unit receiving presentation data from the source terminal, broadcasting a presentation image to the plurality of receiving terminals to display the presentation image of the received presentation data on each screen of the plurality of receiving terminals, and broadcasting voice information to the source terminal and the plurality of receiving terminals to output, from each terminal, the voice information being inputted from any one of the source terminal and the plurality of receiving terminals; and a presentation control unit controlling a transmission/reception of the presentation image and the voice information, and controlling a receiving terminal requesting the token to obtain the token.
摘要:
A data aggregation method and data aggregation apparatus are provided. More particularly the data aggregation method includes: generating a plurality of data aggregation trees according to connection relationships between clusters that constitute a sensor network using a geographical code (GGC), selecting a single activation zone for each of the clusters which configures each of the plurality of data aggregation trees, selecting a maximum energy tree having a maximum total residual energy from the plurality of data aggregation trees, based on the single activation zone, and generating a tree list including activation zone information which corresponds to the maximum energy tree, and information about the maximum energy tree.
摘要:
A presentation apparatus includes: a communication connection establishing unit establishing a communication connection with a plurality of receiving terminals and a source terminal, the source terminal having a token corresponding to an authority of controlling a presentation; a presentation data relay unit receiving presentation data from the source terminal, broadcasting a presentation image to the plurality of receiving terminals to display the presentation image of the received presentation data on each screen of the plurality of receiving terminals, and broadcasting voice information to the source terminal and the plurality of receiving terminals to output, from each terminal, the voice information being inputted from any one of the source terminal and the plurality of receiving terminals; and a presentation control unit controlling a transmission/reception of the presentation image and the voice information, and controlling a receiving terminal requesting the token to obtain the token.
摘要:
Disclosed is a system for providing an electronic device with a DM service, including: a DM server for providing the electronic device with the DM service; and a wireless terminal capable of being directly connected to the DM server for establishing a DM session while cooperating with the electronic device, generating an MO used for managing the electronic device with reference to a DDF of the electronic device if the wireless terminal receives the DDF of the electronic device from the electronic device through the DM session, and transmitting the generated MO to the DM server.
摘要:
A data aggregation method and data aggregation apparatus are provided. More particularly the data aggregation method includes: generating a plurality of data aggregation trees according to connection relationships between clusters that constitute a sensor network using a geographical code (GGC), selecting a single activation zone for each of the clusters which configures each of the plurality of data aggregation trees, selecting a maximum energy tree having a maximum total residual energy from the plurality of data aggregation trees, based on the single activation zone, and generating a tree list including activation zone information which corresponds to the maximum energy tree, and information about the maximum energy tree.
摘要:
An apparatus and method of determining a number of data transmissions in a sensor network are provided. More particularly, an apparatus for determining a number of data transmissions preferably includes an interest zone detector for detecting an interest zone based on a user query, a zone determination unit for determining whether the interest zone is overlapped with a sensing zone, a zone calculator for calculating an overlap amount when the interest zone is overlapped with the sensing zone, and a transmission number determination unit for determining a number of data transmissions according to the overlap amount.
摘要:
An apparatus and method for playing data, played in a device connected with a portable terminal, in another device are provided. An apparatus for storing data of a peripheral device in a portable terminal includes a user interface (UI) managing unit and a data processing unit. The UI managing unit is configured to display, in the event of connection with a peripheral device, a UI for controlling data played in the peripheral device. The data processing unit is configured to copy the played data of the peripheral device through the UI and display a list of the copied data. The data processing unit is further configured to transmit data selected from the displayed list to another device.
摘要:
An apparatus and method for establishing a network connection in a portable terminal. The apparatus includes a controller, an image acquisition unit, and a code image analyzer. The controller establishes a network connection with a peripheral terminal using network information acquired through a code image. The image acquisition unit captures the code image generated by the peripheral terminal. The code image analyzer analyzes the code image acquired by the image acquisition unit and acquires the network information of the peripheral terminal. The code image includes at least any one of network information of the peripheral terminal, code image generation information, and information on an automatic execution program to be automatically executed after code image recognition.
摘要:
A sensor network system and method for establishing a data transmission path are is disclosed. The method for establishing a data transmission path of a sink node and the network system which includes a plurality of nodes including the sink node, includes a) requesting nodes on a previously established data transmission path to give their adjacent node information, b) receiving the adjacent node information, c) retrieving adjacent nodes as the sink node moves, and d) reestablishing the data transmission path through the result of retrieval and the adjacent node information. Since the data transmission path is reestablished without flooding, it is possible to reduce energy of the nodes. Also, the method for establishing a data transmission path can be applied to any routing protocols without additional conditions.
摘要:
A method of processing emergent data in a wireless sensor network is provided in which the latest information is collected from each sensor node and stored, newly-received sensing data are determined as emergent data if an error is over a certain value compared to the latest information from each node, and the emergent data are added with average data of neighbor nodes and transmitted to a sink node. Accordingly, whether neighbor sensor nodes are normal in a wireless sensor network can be determined and managed. An intermediate node can process emergent data generated from each sensor node and separate data by a sensor malfunction or urgent data so that a malfunction of each sensor node can be easily determined and reliability of sensing data of each sensor node can be improved.