• 센서학회지
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• 제22권1호
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• pp.65-70
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• 2013

The integrated sensor module of vehicle combines the functions of rain sensor, auto defog sensor, and sun angle sensor into a single module. These functions originally were applied to work separatively. This integrated sensor module should meet the each performance which appears from the individual modules up to the same level or higher. Therefore, it is important to verify the stability and the accuracy considering the characteristics of the integrated sensor module according to various situations. For the verification, we need to use the actual data of integrated sensor module measured but, a lot of time and money is needed to collect data measured under various circumstances when operating. Thus, through the development of this simulator for the control of the integrated sensor module, we can use it effectively for the initial verification of integrated sensor module by implementing the various situations. In this paper, the simulator for controlling the integrated sensor module which combines vision-based rain sensor, auto defog sensor, auto light sensor, and sun angle sensor has been developed.

• 한국산학기술학회논문지
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• 제14권10호
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• pp.4799-4804
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• 2013

저탄소 녹색 환경 조성 및 성장을 위한 그린 IT 기술 개발은 미래형 신기술 분야이다. 따라서, 본 논문에서는 응용 RFID 모듈에 대한 보안 데이터를 생성하여 건물 환경에 대한 통합 감시 및 관리를 할 수 있는 스마트 그린빌딩 조성용 다기능 센서 통합 모듈 시스템을 개발하였다. 논문에서 구현한 다기능 센서 통합 모듈 시스템은 열 감지센서, 온도 감지센서, 스모그 감지센서, CO2 감지센서, O2 감지센서, 장력 감지센서 및 파손 감지센서를 통합 모듈로 개발하고 이를 실시간으로 모니터링 해줌으로써 건물 내부 환경에 대한 스마트 그린빌딩 환경을 구현할 수 있는 시스템을 설계, 개발하였다.

• 로봇학회논문지
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• 제16권4호
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• pp.291-298
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• 2021

In this study, we present a multi-sensor module for snake robot searching survivors in a narrow space. To this end, we integrated five sensor systems by considering the opinions of the first responders: a gas sensor to detect CO₂ gases from the exhalation of survivors, a CMOS camera to provide the image of survivors, an IR camera to see in the dark & smoky environment, two microphones to detect the voice of survivors, and an IMU to recognize the approximate location and direction of the robot and survivors. Furthermore, we integrated a speaker into the sensor module system to provide a communication channel between the first responders and survivors. To integrated all these mechatronics systems in a small, compact snake head, we optimized the positions of the sensors and designed a stacked structure for the whole system. We also developed a user-friendly GUI to show the information from the proposed sensor systems visually. Experimental results verified the searching function of the proposed sensor module system.

• 한국콘텐츠학회논문지
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• 제10권2호
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• pp.63-71
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• 2010

본 논문에서는 다양한 환경 센서를 이용하여 농작물 재배 환경에 필요한 정보를 수집하고 실시간으로 모니터링 할 수 있는 센서 네트워크 기반의 농업 환경 모니터링 시스템을 제안한다. 기존의 센서 네트워크 기반의 무선 센서 노드들은 대부분 각 센서들의 특성에 따라 별도의 변환/제어 모듈이 필요했다. 이러한 문제점을 해결하기 위해 본 시스템에서는 농작물 재배지에서 필요로 하는 정보를 얻기 위해 사용되는 여러가지 센서들을 단일 노드에 통합할 수 있는 통합 센서 모듈을 개발한다. 또한 통합 센서 모듈에 맞는 센서 네트워크 모니터링 시스템을 개발한다. 개발된 시스템의 동작 상태를 검증하기 위해 테스트 환경에 통합 센서 노드를 설치하여 설치 환경 정보를 센싱할 수 있도록 하여 실시간으로 모니터링할 수 있게 하였다.

• ETRI Journal
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• 제35권4호
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• pp.617-624
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• 2013

Low power consuming and highly responsive semiconductor-type microelectromechanical systems (MEMS) gas sensors are fabricated for real-time environmental monitoring applications. This subsystem is developed using a gas sensor module, a Bluetooth module, and a personal digital assistant (PDA) phone. The gas sensor module consists of a $NO_2$ or CO gas sensor and signal processing chips. The MEMS gas sensor is composed of a microheater, a sensing electrode, and sensing material. Metal oxide nanopowder is drop-coated onto a substrate using a microheater and integrated into the gas sensor module. The change in resistance of the metal oxide nanopowder from exposure to oxidizing or deoxidizing gases is utilized as the principle mechanism of this gas sensor operation. The variation detected in the gas sensor module is transferred to the PDA phone by way of the Bluetooth module.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2043-2048
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• 2011

According to the statistical report from National Emergency Management Agency (NEMA) in Korea, the accident rate of closed switchboards in power systems occupies over 40%. In this paper, an integrated sensor module for monitoring the condition of closed switchboards is described. The sensor module monitors electro-magnetic (EM) wave, ultra-violet (UV) ray, heat and smoke generated by electrical discharges or insulation breakdown. The effective detection ranges were decided from experiment results; 100 kHz~10 MHz for EM wave, 220 nm~395 nm for UV ray and 0~$150^{\circ}C$ for heat, respectively. The prototype sensor module includes all functions above-mentioned in one device.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2009년도 추계학술대회 논문집
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• pp.263-266
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• 2009

In the photovoltaic applications, MPPT(maximum power point tracking) method is essential due to the non-lineality of photovoltaic output characteristics. To ensure stable tracking response, two sensors are required in conventional popular MPPTs. In modularized PV system as an AC module system, the cost of a sensor can have an effect on entire system cost because a power conditioning device is connected in a PV module. Because only a current sensor is required for proposed MPPT, it is helpful in the cost reduction point of view. In this paper, a novel MPPT using current sensor is proposed In the proposed MPPT, the voltage is derived from sensed current value. The proposed method is verified by simulation results.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권11호
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• pp.2987-3002
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• 2023

In 2015, the number of senior citizens aged 65 and over in Korea was 6,662,400, accounting for 13.1% of the total population. Along with these social phenomena, risk information related to the elderly is increasing every year. In particular, a fall accident caused by a fall can cause serious injury to an elderly person, so special attention is required. Therefore, in this paper, we implemented a system that monitors fall accidents and informs them in real time to minimize damage caused by falls. To this end, beacon-based indoor location positioning was performed and biometric information based on an integrated module was collected using various sensors. In other words, a multi-functional sensor integration module was designed based on Arduino to collect and monitor user's temperature, heart rate, and motion data in real time. Finally, through the analysis and prediction of measurement signals from the integrated module, damage from fall accidents can be reduced and rapid emergency treatment is possible. Through this, it is possible to reduce the damage caused by a fall accident, and rapid emergency treatment will be possible. In addition, it is expected to lead a new paradigm of safety systems through expansion and application to socially vulnerable groups.

• 한국가스학회지
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• 제22권1호
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• pp.53-59
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• 2018

국내에 설치되어 있는 LPG 충전소는 약 2000개로 매년 26개씩 증가하고 있다. 이 중 15년 이상 된 노후화 된 충전소는 약 500개로 전체의약 25% 해당된다. 이 중 약 86%는 도시에 설치되어 있어 사고 발생 시 매우 큰 피해가 우려되고 있는 실정이다. 이에 따라, 본 논문에서는 LPG/CNG 충전소에서 가스 누출 및 화재 사고를 예방 및 대응 할 수 있는 가스센서 모듈 및 관제시스템을 개발하였다. 듀얼 타입 센서 모듈은 메탄, 부탄 및 수소의 센서에 측정 된 데이터를 FR433Mhz통신을 통하여 데이터를 수집하여, 전달할 수 있는 기능을 가지고 있다. 또한, 각각의 센서는 두 개씩 부착되어 안정성 및 정확도를 높였다. 통합관제시스템의 S/W는 센서에서 측정 된 장치의 실시간 데이터를 감지하고, 위험상황 발생 시 PC와 스마트폰으로 전달하여 위험 경보를 관리자가 시간과 장소에 상관없이 충전소의 상황을 확인 할 수 있도록 하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2007년도 제38회 하계학술대회
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• pp.1524-1525
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• 2007

A flexible tactile sensor module based on polyimide matrix integrated with sensing elements and pluggable terminals connector was fabricated by polymer micromachining technology for robotic applications. The tactile sensor arrays are composed of $4{\times}4$, $8{\times}8$ and $16{\times}16$ sensing elements connected with pluggable terminals connector, respectively. Especially, both the tactile sensor array and the pluggable terminals are formed in the sensor module during the fabrication process. The fabricated tactile sensor module is measured continuously in the normal force range of $0{\sim}1N$ with tactile sensor auto-evaluation system. The value of resistance is relatively increased linearly with normal force in the overall range. The variation rate of resistance is about 2.0%/N in the range of $0{\sim}0.6N$ and 1.5%/N in the range of $0.6{\sim}1N$. Also, the flexibility of the sensing module is adequate to be placed on any curved surface as cylinder because the matrix consists of polymer and metal thin film.