Abstract:
본실시예들은복수의 BLE 애드버타이저의개수에대하여 BLE 애드버타이저전체가 BLE 스캐너에인식될때까지의평균시간을최소화하는애드버타이징주기를산출하여 BLE 애드버타이저에적용함으로써, 대량의 BLE 애드버타이저를고속으로스캔하여인식할수 있는디바이스연결방법및 장치를제공한다.
Abstract:
PURPOSE: A simulation method based on modeling and simulation framework in a distributed recognition wireless network is provided to offer modeling and simulation framework capable of reflecting performance element of recognition wireless technology in a distributed recognition wireless network. CONSTITUTION: A main user node generates virtual traffic with respect to a corresponding spectral range (S410). The main user node transmits the virtual traffic to the corresponding spectral range. A sub user node selects one spectral range in the plurality of spectral ranges (S420). The sub user node confirms an idle state of the selected spectral range according to detection of the virtual traffic transmitted to the selected spectral range (S440). If the selected spectral range is confirmed to be the idle state, the sub user node transmits a packet through the selected spectral range (S460). [Reference numerals] (AA) Start; (BB) End; (S410) Transmit to a spectral range by generating virtual traffic in a main user node; (S420) Select the spectral range in the spectral range; (S430) Sense a presence of the virtual traffic of the spectral range selected in a sub user node; (S440) Is the spectral range idle?; (S450) Select a spectral access protocol; (S460) Transmit a packet to the selected spectral range using selected spectral access protocol
Abstract:
IP 기반 USN 시스템이 개시된다. IP 기반 USN 시스템은 각각 고유의 IP(internet protocol) 주소를 가지는 복수개의 센서 노드들 및 복수개의 센서 노드들 각각이 브로드캐스팅하는 위치 정보를 저장하는 테이블을 구비하고, 테이블에 저장된 위치 정보를 갱신하기 위하여 주기적으로 자신의 존재를 알리는 존재 정보를 브로드캐스팅하는 IP-USN 라우터를 포함한다. 센서 노드들 각각이 고유의 IP 주소를 가지고 있기 때문에 외부에 어떤 네트워크에서도 사용자가 원하는 정보 및 서비스를 얻을 수 있다.
Abstract:
PURPOSE: A touch information transmitting/receiving terminal through a communications network which transfers touch information through a communication unit is provided to transfer and reproduce touch information inputted from a user through a communication network. CONSTITUTION: A touch information transmitting terminal(200) includes a communication unit(210), a touch screen(220), a touch transfer information generator(230), a storage unit(240) and a main controller. The communications unit communicates with the communications terminal using wire or wireless communications. The touch screen recognizes a touch signal inputted via a touch panel. The touch screen outputs touch strength information and touch coordinate information regarding touch location and touch pressure. The touch transmission information generator generates touch transfer information through the communications network.
Abstract:
A gateway and an interoperability method of 6LoWPAN(Low power Wireless Personal Area Networks) are provided to deliver a short 16-bit IPv6 address by performing an IP layer compression in a gateway. In a gateway(40) for an interoperability of a 6LoWPAN(1), a first connecting unit is used for connecting to the 6LoWPAN(1). A second connecting unit is used for connecting to an IPv6 network(2). A compressed IPv6 header expanded by a certain mapping table, is combined with a separated packet, and transmitted to the second connecting unit if an outbound traffic is generated from the 6LoWPAN(1) and transmitted to the IPv6 network(2). If an inbound traffic is generated from the IPv6 network and transmitted to the 6LoWPAN, the compressed IPv6 header is compressed by a certain mapping table, separated from the packet and transmitted to the first connecting unit.