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    • 2. 发明公开
    • 무선랜 이용 시 전력 절약 방법과 그를 위한 시스템 및 AP
    • 使用无线LAN,系统和接入点节省电力的方法
    • KR1020120097934A
    • 2012-09-05
    • KR1020110017519
    • 2011-02-28
    • 한국과학기술원
    • 정송곽정호김지환
    • H04W52/02H04W68/02H04W88/08
    • Y02D70/14H04W52/0245H04W48/16H04W68/02H04W84/12H04W88/08
    • PURPOSE: A method for saving power when a wireless LAN is used, a system thereof, and an AP thereof are provided to notify a corresponding terminal of the fact that a terminal enters a specific AP coverage using a paging signal of a base station. CONSTITUTION: A terminal(110) transmits a second paging signal corresponding to a received first paging signal. An AP(Access Point)(130) overhears the second paging signal. The AP checks whether the terminal enters a wireless LAN coverage based on the overheard signal. The AP transmits a coverage entry signal based on the checked result. A base station(120) transmits a third paging signal with coverage entry information to the terminal based on the received coverage entry signal. [Reference numerals] (110) Terminal; (120) Base station; (AA) Wireless LAN coverage
    • 目的:提供一种当使用无线LAN时节省电力的方法,其系统及其AP,以通过基站的寻呼信号向终端通知终端进入特定AP覆盖范围的事实。 构成:终端(110)发送对应于接收的第一寻呼信号的第二寻呼信号。 AP(接入点)(130)窃听第二寻呼信号。 AP根据监听信号检查终端是否进入无线局域网覆盖。 AP基于检查结果发送覆盖条目信号。 基站(120)基于接收的覆盖进入信号向终端发送具有覆盖条目信息的第三寻呼信号。 (附图标记)(110)端子; (120)基站; (AA)无线局域网覆盖
    • 3. 发明公开
    • 가스터빈의 천이해석을 위한 수치해석장치 및수치해석방법
    • 气体涡轮瞬态分析的数值分析装置及其数值分析方法
    • KR1020090064906A
    • 2009-06-22
    • KR1020070132282
    • 2007-12-17
    • 한국과학기술원
    • 노희천김지환김현민
    • G06F17/10
    • G06F17/11G06F17/16G06F17/5086G06F2217/16
    • A numerical analysis apparatus for transient analysis of gas turbines and a numerical analysis method thereof are provided to converge on the result of numerical analysis stably in wide operation condition by adopting the numerical analysis method of Newton-Raphson. After the linearizing the governing equations of penetration floating analysis for the perform analysis of a gas turbine, a gas turbines performance analysis module(200) performs the numerical analysis of the gas turbine based on heat fluid data. A system analysis code module(300) performs transit analysis of the gas turbine, and the analysis result of the gas turbine performance analysis code module is directly coupled. The analysis result is directly applied to the govern equitation of a transit analysis.
    • 提供了一种用于燃气轮机瞬态分析的数值分析装置及其数值分析方法,通过采用牛顿 - 拉夫森数值分析方法,在广泛运行条件下稳定地收敛于数值分析的结果。 在对燃气轮机执行分析的渗透浮动分析的控制方程进行线性化之后,燃气轮机性能分析模块(200)基于热流体数据进行燃气轮机的数值分析。 系统分析代码模块(300)执行燃气轮机的运输分析,燃气轮机性能分析代码模块的分析结果直接耦合。 分析结果直接适用于对过境分析的统一管理。
    • 6. 发明授权
    • 위치 히스토리 기반 무선망 검색방법 및 장치
    • 用于搜索基于位置历史的无线网络的方法和装置
    • KR101274951B1
    • 2013-06-17
    • KR1020110127931
    • 2011-12-01
    • 한국과학기술원
    • 정송곽정호김지환정재성
    • H04W48/16H04W64/00H04W52/02
    • Y02D70/10
    • 본 발명의 일 실시예에 따르면, 무선망 검색 장치가 단말기의 무선망 검색을 최소화하기 위하여, 제1 무선망신호를 수신하는 제1무선망신호 수신단계; 상기 제1 무선망신호를 이용하여 상기 단말기가 위치한 현재 셀(Cell)의 위치를 감지하는 위치감지단계; 상기 단말기의 이전 셀의 위치를 획득하는 이전위치 획득단계; 및 상기 이전 셀의 위치에 따라서 결정되는 현재 셀에서의 제2 무선망 감지확률을 이용하여 결정된 무선망 검색 주기로 제2 무선망을 검색하는 제2무선망 검색단계를 포함하는 것을 특징으로 하는 무선망 검색 방법 및 그 장치를 제공한다.
    • 目的:提供基于位置历史的无线网络搜索方法及其设备,以便通过基于关于访问位置的信息的历史来预测当前位置的无线搜索概率来有效地搜索无线网络。 构成:第一无线网络信号接收单元(110)接收第一无线网络信号。 位置感测单元(120)通过第一无线网络信号感测包括终端的当前小区的位置。 先前位置获取单元(140)获得终端的先前小区的位置。 第二无线网络搜索单元(150)通过使用当前小区中的第二无线网络概率搜索第二无线网络。 (附图标记)(110)第一无线网络信号接收单元; (120)位置传感单元; (130)单元DB; (140)上一个位置获取单元; (150)无线网络搜索单元; (160)概率更新单位; (170)概率DB
    • 7. 发明公开
    • 위치 히스토리 기반 무선망 검색방법 및 장치
    • 用于搜索位置历史的无线网络的方法和装置
    • KR1020130061557A
    • 2013-06-11
    • KR1020110127931
    • 2011-12-01
    • 한국과학기술원
    • 정송곽정호김지환정재성
    • H04W48/16H04W64/00H04W52/02
    • Y02D70/10H04W48/16H04W52/0225H04W64/003Y02D70/00
    • PURPOSE: A location history-based wireless network search method and a device thereof are provided to efficiently search for a wireless network by predicting a wireless search probability of a current location based on history of information about visited locations. CONSTITUTION: A first wireless network signal receiving unit(110) receives a first wireless network signal. A location sensing unit(120) senses a location of a current cell including a terminal through the first wireless network signal. A previous location obtaining unit(140) obtains a location of a previous cell of the terminal. A second wireless network searching unit(150) searches for a second wireless network by using a second wireless network probability in a current cell. [Reference numerals] (110) First wireless network signal receiving unit; (120) Location sensing unit; (130) Cell DB; (140) Previous location obtaining unit; (150) Wireless network searching unit; (160) Probability update unit; (170) Probability DB
    • 目的:提供基于位置历史的无线网络搜索方法及其设备,以便通过基于关于访问位置的信息的历史来预测当前位置的无线搜索概率来有效地搜索无线网络。 构成:第一无线网络信号接收单元(110)接收第一无线网络信号。 位置感测单元(120)通过第一无线网络信号感测包括终端的当前小区的位置。 先前位置获取单元(140)获得终端的先前小区的位置。 第二无线网络搜索单元(150)通过使用当前小区中的第二无线网络概率搜索第二无线网络。 (附图标记)(110)第一无线网络信号接收单元; (120)位置传感单元; (130)单元DB; (140)上一个位置获取单元; (150)无线网络搜索单元; (160)概率更新单位; (170)概率DB
    • 10. 发明公开
    • 차량 간 충돌 방지 시스템 및 그 차량 충돌 방지 방법
    • 预防系统和汽车碰撞的方法
    • KR1020110094982A
    • 2011-08-24
    • KR1020100014747
    • 2010-02-18
    • 한국과학기술원
    • 정송이경한이준희김지환곽정호
    • G08G1/16
    • G08G1/161G08G1/166
    • PURPOSE: A device for preventing vehicle collision and a method thereof are provided to estimate the collision between vehicles by forming the topology of a vehicle driving in a certain section. CONSTITUTION: In a device for preventing vehicle collision and a method thereof, a vehicle collision analysis section(50) forms a topology according to the position of driving vehicles and analyzes it. The vehicle collision analysis section informs a user of vehicle collision. A topology analysis section forms the topology through the communication between adjacent vehicles and a vehicle and traffic facilities. A collision scenario analysis section(40) generates a collision scenario between vehicles and analyzes it. An adjacent vehicle location analysis section(60) measures the location between driving vehicles within a certain range.
    • 目的:提供一种用于防止车辆碰撞的装置及其方法,以通过形成在某一部分中行驶的车辆的拓扑来估计车辆之间的碰撞。 构成:在用于防止车辆碰撞的装置及其方法中,车辆碰撞分析部(50)根据驾驶车辆的位置形成拓扑结构并对其进行分析。 车辆碰撞分析部通知用户车辆碰撞。 拓扑分析部分通过相邻车辆与车辆和交通设施之间的通信形成拓扑。 碰撞情景分析部分(40)生成车辆之间的碰撞场景并对其进行分析。 相邻车辆位置分析部(60)在一定范围内测量驾驶车辆之间的位置。