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PROJECTS > Research Contents

3-3 Environmental Sensor Systems

Participants
TOPIC 1 : Development of personal environmental monitoring systems
Participants
  • Hyuntae Cho, CISS
Purpose
  • Development of personal environmental monitoring systems which measure indoor and outdoor air quality
  • Study on network protocols for environmental monitoring systems
  • Study on low-power environmental sensing technology and sensor calibration technology
Research Contents
  • Development of an integrated IoT device for monitoring indoor environment
  • Study on event detection technology for low-power operation
  • Study on a low-power scheduling algorithm for the monitoring device



  • Topology construction and maintenance for low-power network and communication
  • Design of network framework for integrating smart environmental sensor system, Wi-Fi based wireless communication, server, and smart devices

Expected Contribution
  • Provision of the core technologies for the smart ITC platform
  • Provision of the core technologies about algorithms for low-power and accurate sensing
  • Provision of healthcare service by tracking human’s activity and exposure time to air pollution
  • Improvement of life quality through the provision of the exact information about air quality
TOPIC 2 : Development of environmental sensors for indoor/outdoor air quality monitoring
Participants
  • Dong-Ik Kim, CISS
  • Han-Jung Kim, CISS
  • Dae Ick Han, CISS
  • Il-Doo Kim, KAIST (Materials Scinece and Engineering)
  • Inkyu Park, KAIST (Mechanical Engineering)
  • Chong-Ook Park, KAIST (Materials Scinece and Engineering)
  • Gyuseong Cho, KAIST (Nuclear & Quantum Engineering)
  • Jongbaeg Kim, Yonsei Univ. (Mechanical Engineering)
  • Hyung Gyu Lee, Daegu Univ. (Computer and Communication Engineering)
Purpose
  • Development of miniaturized optical particulate matter sensors for indoor/outdoor air quality monitoring
  • Development of nanotechnology-based smart air purifier for indoor air quality
  • Development of air trackers using environmental sensors and monitoring systems
  • Development of high performance sensing layers that can detect environmentally hazardous chemical species in both outdoor and indoor spaces for real-time recognition of dangerous components
  • Development of catalyst-metal oxide composite sensing layers with ultra high sensitivity and fast sensing performances
  • Developing hybrid nanomaterials and manufacturing processes for high-performance, low-power, ultra-compact environmental sensor
  • Development for processes of surface functionalization and material conversion of nanomaterials
  • Implementation and commercialization of the Insulating oil degradation detection system using Park-Rapp probe
  • Development of high-efficiency, low-cost hydrogen sensor by applying tape casting technology
  • Packaging development for the measurement of hydrogen and gas separation through a gas permeable membrane
  • Design and implementation of the insulating oil degradation detection algorithm and electrical circuits
  • Interface circuits for silicon-based radiation sensors
  • Improving sensing performance of nanomaterial-based TVOC (Total Volatile Organic Compound) sensors
  • Developing various nanomaterial-based VOCs (Volatile Organic Compounds) sensor arrays
  • Design and Implementation of SmartPatch prototype (business prototype) targeting for low-cost smart UV-level meters
Research Contents
  • Optical system design, structure design, calibration system setup and calibration algorithm development for miniaturizing particulate matter sensors



  • Development of advanced air purification technology for removing harmful substances (VOCs, PM2.5/10)
  • Development of personal air pollution device embedded smart environmental sensor module
  • Development of organic nanotemplating technique for nanocatalyst synthesis with high dispersity
  • Synthesis of nanocatalyst-functionalized 1D metal oxide nanofibers using electrospinning technique and control of surface morphology
  • Evaluation of chemical sensing performance using the catalyst-metal oxide composite sensing layers
  • Pattern recognition using the catalyst-metal oxide composite sensing libraries



  • Developing hybrid functional nanomaterials for high-performance, low-power, and ultra-compact environment sensors, fabrication and integration of hybrid nanomaterials in sensing devices, and implementation of multiplexed sensing array
  • Developing hybrid nanomaterials and applying them for the high-performance environment sensors



  • Design and implementation of sensor packaging having stability at high temperatures
    - Design and fabrication of the solid electrochemical hydrogen sensor by applying tape casting technology to Park-Rapp probe
  • Development of sensor packaging and measuring device for insulating oil degradation
    - Design of the packaging which can prevent heat from entering/existing the packaging
    - Development of the measuring device which can measure hydrogen gas separated from and collected through a gas permeable membrane
  • Design/Implementation of circuit for temperature compensation and measurement algorithm
    - Checking sensor signal characteristics and design of the temperature compensation circuit
    - Design and implementation of an oxygen-pumping driving algorithm to eliminate oxygen gas present inside the packaging and interferes with hydrogen gas measurement
  • Prototype testing of system for detecting oil degradation and development of production process
    - Making a prototype including the sensor and peripheral circuits
    - Finding ways to secure reliability through field evaluations



  • Interface circuits for silicon-based radiation sensors
    - Interface circuits consisting of preamplifier, main amplifier, and single channel analyzer
    - Integration of the interface circuits with silicon-based radiation sensors and plastic scintillators



  • Detecting TVOC using various nanomaterials (ZnO, WO3,CNT,andgraphene)
  • Detecting TVOC using various structures of nanomaterial-based sensors
  • Analyzing TVOC sensing performance depending on morphology and crystallinity of nanomaterials



  • Developing SmartPatch business Prototype targeting for low-cost smart UV-level meters
    - Business planning
    - Customized display module using E-Ink technology
    - Customized PV-Cell
    - Integrating SmartPatch ASIC and UV sensor on a same package
    - System-level integrating using a flexible PCB
    - Reliability and field test
Expected Contribution
  • Utilizing for local particulate matter forecast due to portability
  • Advanced air purification technology to completely remove fine dust (PM2.5/10) and harmful gas
  • Contribution to securing smart IT platform related to personal contaminated air monitoring
  • To propose a newly developed synthesis method using the organic templating route, obtain intellectual property, and increase the market share in chemical gas sensing related technology globally.
  • We can open related market and develop nanomaterial-based high-performance, low-power, and ultra-compact environment sensor by developing high-sensitivity environment sensor. Also, market of smart environment sensor for mobile device is opend by our research.The progress of ubiquitous sensor network using ultra compact sensor contribute to creation of demand in health care and intelligent building.
  • The world market for environmental sensing and monitoring is expected to reach $ 15.3 billion in 2016
  • Suggestion of new product and its business model of Park-Rapp probe
  • Suggestion of the model of basic research industrialization
  • Transformer accident prevention and the Enhancing the social safety net
  • Enhancing the vitality of the weak domestic measuring equipment industry
  • Revitalization of UV-level meter and correlated health-care markets
  • Securing communication technology on low-cost and low-power energy harvesting devices
  • Securing software-based SmartPatch technology for enlarging the target market of SmartPatch
TOPIC 3 : Development of environmental sensors for indoor/outdoor air quality monitoring
Participants
  • Je, Minkyu, KAIST (Electrical Engineering)
  • Hyung-Chul Park, Seoul Tech (Electronic Media in IT)
Purpose
  • Development of low-power smart gas sensor interface circuit
  • Development of power efficient digital signal processing technology for high performance IoT based sensor system
Research Contents
  • High-resolution large-dynamic-range low-power gas sensor readout circuits
  • High-accuracy high-efficiency heating and temperature control circuits
  • Calibration and compensation circuits
  • Integration of the interface circuits with gas sensors for the implementation of gas sensor systems
  • Development of low-power MODEM to reduce power consumption of wireless data transmission for IoT sensor network

Expected Contribution
  • Securing core circuit technologies for next-generation smart sensor systems
  • Mitigating the nation’s heavy dependence on imported sensors and related circuit components
  • Miniaturization and power reduction of the sensor products for various applications, leading to preemptive advantages for the future world IoT market
  • Improvement of environment and public health by extending the offer of wireless smart gas sensor systems to much larger user base
  • Contribution to reliability through excellent communication support and low-energy consumption for smart sensor network system
TOPIC 4 : Development of smart farm monitoring and management system with smart RTU
Participants
  • Hun Kyu Choi, Spinasystems
Purpose
  • Development of efficient smart farm system and its application programs using weather information and surrounding sensor data and achieving optimal control of actuators.
Research Contents
  • Development of smart system H/W
  • Development of smart system S/W
  • Android app development for monitoring and controlling greenhouse conditions
  • Development of web server in cloud environment

Expected Contribution
  • Applicable to IoT automation platform
  • Compared to conventional PC-based solution, suggested solution can save up to 40% system construction cost.
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