摘要:
A wireless communication system includes a plurality of nodes and a base station. The plurality of nodes include a connection node that is positioned at a BS range of the base station to transmit and receive a packet to and from the base station, or that is positioned outside a BS range of the base station to transmit and receive a packet to and from the base station through other connection nodes, and a relay request node that is positioned at a periphery of the connection node and that transmits a relay request to the connection node when the relay request node deviated from a BS range of the base station.
摘要:
Provided is an apparatus and method for preventing air baggage from getting lost using a radio frequency identification (RFID) system. The apparatus for preventing baggage from getting lost, change, or stolen in which a baggage tag storing baggage management information is attached to the baggage and a receipt tag storing the baggage management information is issued to a baggage owner, the apparatus includes: a tag reader reading the receipt tag and the baggage tag in a predetermined area; and a determiner determining whether the tag reader reads the receipt tag including the same baggage management information as the baggage management information of the baggage tag within a predetermined time before and after the tag reader reads the baggage tag. As a result, air baggage is quickly and exactly managed, costs is reduced, and foreign confidence of an airport is increased, thereby preventing baggage from getting lost and exchanged.
摘要:
A client, a computer-readable recording medium, and method for acquiring a uniform resource identifier are provided. The client includes a message reception unit which receives a plurality of naming authority pointer (NAPTR) records from a domain name service (DNS) server, each of the NAPTR records comprising a URI and an identifier of a user of the URI; and a URI selection unit which chooses one of the URIs respectively included in the NAPTR records by referencing the identifiers respectively included in the NAPTR records. Accordingly, it is possible to choose a URI to be used by a client from among a plurality of URIs included in URI information received from a DNS server.
摘要:
Provided is a method of managing a non-IP sensor network using a simple network management protocol (SNMP), and more particularly, a method of remotely managing a non-IP based sensor network, such as Zigbee, from the Internet of a sensor network manager.
摘要:
Provided is an apparatus and method for preventing air baggage from getting lost using a radio frequency identification (RFID) system. The apparatus for preventing baggage from getting lost, change, or stolen in which a baggage tag storing baggage management information is attached to the baggage and a receipt tag storing the baggage management information is issued to a baggage owner, the apparatus includes: a tag reader reading the receipt tag and the baggage tag in a predetermined area; and a determiner determining whether the tag reader reads the receipt tag including the same baggage management information as the baggage management information of the baggage tag within a predetermined time before and after the tag reader reads the baggage tag. As a result, air baggage is quickly and exactly managed, costs is reduced, and foreign confidence of an airport is increased, thereby preventing baggage from getting lost and exchanged.
摘要:
A heating device having an improved heat resistance structure is provided. The heating device may include a heating element that generates heat, and an elastic conductive part that applies electricity to the heating element. A connector may be provided between the elastic conductive part and the heating element to preclude direct contact between the heating element and the elastic conductive part. The heating element may be fixed to one side of the connector, and the elastic conductive part may be fixed to the other side of the connector to allow current applied from the elastic conductive part to flow to the heating element.
摘要:
A method of extending a routing protocol for supporting an M2M service in a wireless mesh basic service set (MBSS) is provided. A method of extending a routing protocol that sets a mesh station (M-STA) that is connected to a distribution system in M-STAB of an MBSS to a mesh gate, in which the mesh gate transmits a RANN message and a gate announcement message to the M-STA, in which the mesh gate receives a path request message from the M-STA, and in which the mesh gate stores a path from the mesh gate to the M-STA based on the received path request message is provided. Because an M2M service terminal can be connected to the M-STA, the M-STA receives data from an M2M service terminal and the received data is included in a proxy update message, and the proxy update message is transmitted to the mesh gate.
摘要:
Disclosed is herein a composition comprising hexamidines, derivatives thereof, or pharmaceutically acceptable salts thereof; and retinoids, derivatives thereof, or pharmaceutically acceptable salts thereof, as an active ingredient. The composition of the present invention has effects for preventing, improving or treating acne; controlling sebum; pore-controlling; and preventing, improving or treating skin pigmentation. Also, the composition of the present invention could alleviate skin-irritations caused with retinoids by including ceramides.
摘要:
Provided is multi-channel and multi-interface mesh router and method of assigning a channel according to a fixed distribution scheme. The channel assignment method may configure a neighbor information table, a parent list, and a dependent list through exchanging of information between mesh routers, and may determine a channel assignment order based on the parent list and the dependent list and then assign a channel, beginning with a mesh router selected as a seed node, and sequentially transmit channel assignment information to mesh routers included in the dependent list.
摘要:
A steam generator is provided that includes an external case having an opening that allows an internal space to communicate with an external environment. Additionally, the steam generator may be provided with a supplier that supplies water to the internal space, a heater provided to the opening to generate steam, an outlet pipe having a first side that communicates with the external environment to discharge steam, and a steam discharge controller provided to a second side of the outlet pipe to open/close the outlet pipe according to a presence or absence of a discharge of the steam.