Abstract:
생체 신호 잡음 제거 장치 및 그 방법이 개시된다. 이때, 생체 신호 잡음 제거 장치는 무잡음 생체 신호를 입력받아 웨이블릿 훈련을 통해 기저 웨이블릿 함수가 선택되는 빈도를 확률로 나타낸 확률 테이블을 생성하는 웨이블릿 학습부, 그리고 잡음이 포함된 생체 신호를 입력받고, 상기 확률 테이블을 토대로 선택한 최적 웨이블릿 함수를 이용한 웨이블릿 변환 및 웨이블릿 축소를 통해 상기 잡음이 포함된 생체 신호로부터 상기 잡음을 제거하는 잡음 제거부를 포함한다. 이와 같이 본 발명에 따르면, EEG(electroencephalography), EMG(electromyography), ECG(Electrocardiogram), FNIRS(FUNCTIONAL NEAR INFRARED SPECTROSCOPY) 등 다양한 실험 환경등에서 발생할 수 있는 노이즈를 최적으로 줄일 수 있다. 또한, BCI 및 생체 신호 기반 진단 보조 소프트웨어 기술에 있어서 잡음 제거는 필수 요소로 포함되기 때문에 향후 상용화 가능성이 높다.
Abstract:
PURPOSE: Obstacle density based route schedule method and apparatus are provided to perform an intelligent route schedule and a route schedule based on the knowledge information of a dynamic obstacle and a static obstacle. CONSTITUTION: An obstacle density based route schedule apparatus(100) comprises an obstacle density calculator(110), a clustering unit(120), and a route schedule output unit(130). The obstacle density calculator calculates the obstacle density on each cell by classifying an image on a cell basis. The clustering unit groups each cell to one or more groups. The route schedule output unit outputs the routing schedule by performing a gene algorithm using the obstacle density of each cell and the information on one or more groups. The obstacle density calculator calculates the obstacle density by calculating the occupying ratio of black and white for the fixed obstacle and the brightness value of a pixel for the dynamic obstacle, on a pixel basis for each cell.
Abstract:
PURPOSE: A method and a system for diagnosing disability are provided to diagnose disability based on recording information by utilizing a database for developmental disabilities using a database structure. CONSTITUTION: An information collection unit(610) collect information by observing developmental disabilities. An information extraction unit(620) selects a sentence by analyzing the collected information on the basis of natural language. The information extraction unit performs a morphological analysis process by performing the natural language process. A group generation unit(630) generates a group by extracting a correlation index for the selected word or the selected sentence. A disability diagnosis unit(640) classifies the disabilities for the developmental disabilities on the basis of the group and generates the diagnosed results.
Abstract:
PURPOSE: A refuge guidance robot apparatus is provided to enable efficient lifesaving by enabling rescuers to rapidly grasp information on gas concentration of a fire site. CONSTITUTION: A refuge guidance robot apparatus comprises a main body, a sensor module(110), a movable module(120), a camera module(130), a wireless communication module(140), a movement direction detecting sensor(150), a lighting module(160), and a control module(170). The sensor module comprises one or more sensors(113,114) for sensing environmental information. The camera module takes a photograph of the structure region surrounding the image. The wireless communication module transmits and receives data, image, and voice signal to an external device of a remote site. The movement direction detecting sensor senses the traveling direction of the robot.
Abstract:
PURPOSE: A lookup table based single positive dual negative rule fuzzy controller and a control method are provided to shorten a calculation time by obtaining each member function value from a search table. CONSTITUTION: An address generator(110) generates a lookup table address corresponding to a fuzzy controller input by using a fuzzy controller input, a common reference function, and a member function for a fuzzy set. A member function value output unit(120) outputs a member function value corresponding to a search table address from the search table storing the member function value corresponding to the fuzzy controller input. A corrector(130) corrects the member function value according to the fuzzy controller input, and outputs the corrected member function value.
Abstract:
A method and an apparatus of transmitting a data packet in a wireless multi-hop network in consideration with a hop count, and a wireless multi-hop network system are provided to reduce link failure probability by increasing the distance between nodes. Hop counters are obtained according to active connections(S210-S230), and the generated send queue is selected according to a certain criterion(S240,S250). The packet burst transmission for the selected send queue is performed(S260). The send queue is generated according the active connections, and a CQI(Channel Quality Indicator) is generated by estimating the channel quality.
Abstract:
본 발명은 무선 센서네트워크 환경에서 MAC(Medium Access Control) 계층의 효율적인 경쟁 윈도우를 선택하여 싱크노드로 향하는 데이터 패킷의 전송시간을 줄이고, 높은 처리량을 얻기 위한 무선 센서 네트워크에서 거리 적응적 경쟁 윈도우 조절 장치 및 방법을 제공하기 위한 것으로서, 거리 적응적 경쟁 윈도우 조절 장치는 센서 노드에서 라우팅 프로토콜을 통해 라우팅을 담당하는 센서 라우팅 프로토콜부와, 데이터 링크 계층과 상호 작용할 수 있는 센서-MAC 기반의 MAC(Media Access Control)부와, 상기 MAC부에서 인터페이스 버퍼에 쌓여있는 프레임 개수를 모니터링하여 혼잡상태여부를 결정하는 모니터링부와, 상기 모니터링부를 통해 혼잡상태가 인식되면 경쟁 윈도우의 슬롯(slot) 수를 동적으로 조절하여 채널 경쟁에 참여하도록 하는 윈도우 조절부를 포함하는데 있다. 무선 센서 네트워크, 윈도우 조절, 홉 카운터, 라우팅, 경쟁 윈도우, MAC