• 센서학회지
• /
• 제22권1호
• /
• pp.65-70
• /
• 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.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2005년도 ICCAS
• /
• pp.449-452
• /
• 2005

For home networking system with a function of air quality monitoring, a wireless sensor module with several air quality monitoring sensors was developed for indoor environment monitoring system in home networking. The module has various enlargements for various kinds of sensors such as humidity sensor, temperature sensor, CO2 sensor, flying dust sensor, and etc. The developed wireless module is very convenient to be installed on the wall of a room or office, and the sensors in the module can be easily replaced due to well designed module structure and RF connection method. To reduce the system cost, only one RF transmission block was used for sensors' signal transmission to 8051 microcontroller board in time sharing method. In this home networking system, various indoor environmental parameters could be monitored in real time from RF wireless sensor module. Indoor vision was transferred to client PC or PDA from surveillance camera installed indoor or desired site. Web server using Oracle DB was used for saving the visions by web-camera and various data from wireless sensor module.

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

• 한국멀티미디어학회논문지
• /
• 제11권11호
• /
• pp.1547-1554
• /
• 2008

본 논문은 센서 네트워크를 이용하여 실시간으로 건물 내부의 화재 정보를 감시하고, 화재 발생 시 적절한 대피 경로를 제안하는 화재 대피 유도 시스템 모델을 제안한다. 이 시스템 모델은 센서 경보 모듈(sensor alert module), 행위 제안 모듈(behavior suggestion module), 비상 장치 제어 모듈(emergency device control module) 등으로 구성된다. 센서 경보 모듈은 센서 네트워크에서 수집한 정보를 주기적으로 감시하고, 규칙기반 알고리즘을 이용하여 화재 여부를 판별한다. 그리고 행위 제안 모듈은 센서 경보 모듈이 생성한 위험 센서 목록(danger sensor list)을 가지고 화재지역을 파악하여 화재 위치에 따른 비상등의 방향을 제시하고, 비상 장치 제어 모듈은 제시된 비상등의 방향에 따라 관련 비상 장치를 제어하거나 화재 상태를 도시한다. 이 시스템의 동작을 검증하기 위해 가상으로 무선 센서 네트워크의 데이터를 생성하여 인터넷 웹 기반의 화재 대피 유도 시스템을 구현하여 실험한다. 향후 본 연구를 통하여 대형 건축물에서 화재 발생과 같은 긴급 상황 발생할 경우 사람들을 안전하게 보호할 수 있을 것으로 사료된다.

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

• 조명전기설비학회논문지
• /
• 제25권8호
• /
• pp.99-105
• /
• 2011

This paper is about the design of 3-axis magnetic sensor module which detects parking and moving vehicle. For the sensor module, MR Sensor from Honeywell of which maximum measurement range is ${\pm}2$[G] is used. It also consisted of amplifier and sensor filter and fabricated $30{\times}50$[mm] PCB. Fabricated sensor module produced helmholtz coil of which the length is 1.2[m] of 3-axis to know the performance. It installed sensor module at the center and measured the detected magnetic field. In result, 3-axis were detected as 0.2~0.3[mG] and the drift of the fluctuation of magnetic field was stabilized at 0.03[mG] unit. For the performance evaluation of the vehicle detection, after the entry and parking of the vehicle, variation of magnetic field was measured as 0.323~0.695[G] which the average 0.5[G] of the earth magnetic field was the center and the range of variation was confirmed as 0.37[G]. Therefore, the designed magnetic sensor can be used as the vehicle detection sensor module.

• 대한기계학회논문집A
• /
• 제31권3호
• /
• pp.395-402
• /
• 2007

This paper considers about the tilt measurement of lens module with multiple lenses. The tilt between lenses in lens module and barrel or between image sensor and barrel can be measured precisely with the proposed algorithm. The magnitude and direction of the tilt vector of lens and image sensor can be measured from the best focal surface. The selecting and setting of image sensor, test chart, image sensor centering to lens module, axis align, focus measure method are also explained to get highly precise tilt results. The proposed algorithm is verified with the lens module inspection system we developed, and the experimental results show that the tilt measure proposed in this paper is robust and precise. With the proposed tilt measurement algorithm, the tilt of an image sensor and any other lens which intermediates light can be measured.

• Journal of the Optical Society of Korea
• /
• 제15권1호
• /
• pp.44-51
• /
• 2011

In this paper, an easy-to-use measurement device for illumination distribution is developed. The device consists of a sensor array module, a control module, and a PC interface. The sensor array module incorporates CIE 1931 color sensors and the ARM-based 96 MHz microcontroller in the control module for measurement and data processing. The sensor array module contains 64 color sensors arranged in a $16{\times}4$ array. The sensitivity of the sensor array module can be adjusted depending on the illumination level to be measured. The measurement data and control signals are exchanged via USB 2.0 standard. To demonstrate the performance of the device, the illumination distribution is measured for colors of red, green, and blue and is graphically shown. The device can be used for measurement of the illumination distribution, design and adjustment of LED illumination.

• 한국산업정보학회논문지
• /
• 제19권2호
• /
• pp.51-58
• /
• 2014

As WSNs(Wireless Sensor Networks) are being deployed widely in diverse application areas, their management and maintenance become more important. Recent sensor node software takes modular software architectures in pursuit of flexible software management and energy efficient reprogramming. To realize an flexible and efficient modular architecture particularly on resource constrained mote-class sensor nodes that are implemented with MCUs(Micro-Controller Units) of a single address space. an appropriate module linking model is essential to resolve and bind the inter-module global symbols. This paper identifies a design space of module linking model and respectively their implementation frameworks. We then establish a taxonomy for module linking models by exploring the design space of module linking models. Finally, we suggest an implementation framework respectively for each module linking model in the taxonomy. We expect that this work lays the foundations for systematic innovation toward more flexible and efficient modular software architectures for WSNs.

• 반도체디스플레이기술학회지
• /
• 제20권3호
• /
• pp.161-166
• /
• 2021

To prevent accidents caused by changes in the surrounding environment or other factors, various protection facilities are installed at the photovoltaic connection module. The main causes of fire are sparks due to foreign substances inside the photovoltaic connection module through high temperature rise and dew condensation in the photovoltaic connection module, and fire due to heat from the power diode. The proposed method can predict the fire by measuring flame, carbon dioxide, carbon monoxide, temperature, humidity, input voltage, and current on the photovoltaic connection module, and when the fire conditions are reached, fire alarm and power off can be sent to managers and users in real time to prevent fire in advance.