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위험기상 감시 및 예측 향상을 위한 라디오존데 및 고층기상관측 자동화 시스템 개발

  • 사업명

    IT·SW융합산업원천기술개발

  • 과제명

    위험기상 감시 및 예측 향상을 위한 라디오존데 및 고층기상관측 자동화 시스템 개발

  • 주관연구기관

    진양공업

  • 보고서유형

    최종보고서

  • 발행국가

    대한민국

  • 언어

    한국어

  • 발행년월

    2016-04

  • 과제시작년도

    2015

  • 주관부처

    미래창조과학부
    Ministry of Science, ICT and Future Planning

  • 등록번호

    TRKO201600002479

  • 과제고유번호

    1711026540

  • 키워드

    친환경 라디오존데.고층기상관측.무인 고층관측자동비양 장치.기상관측 시스템.다채널 고층관측 수신 시스템.Environmental friendly Radiosonde.Upper Air Sounding.Automatic launcher for unmanned sounding.Meteorological monitoring system.Multi-channel adiosonde observation receiving system.

  • DB 구축일자

    2016-06-11

  • 초록 


    Results
    1. Environmental-friendly High-precision Radiosonde
    A. Development and application of humidity control algorithm...

    Results
    1. Environmental-friendly High-precision Radiosonde
    A. Development and application of humidity control algorithm
    (1) Improved precision by dual humidity cap
    The main purpose of the design change in the humidity sensor dual cap is not only to prevent the humidity sensor part from getting large water droplets adsorbed directly, but to improve ventilation through the dual cap when the sensor passes rain, snow, or clouds. In terms of external appearance of the newly designed product, there are holes on the upper side of the dual cap, and two ventilators (internal & external) on both sides.
    The internal and external caps go across, and four holes are arranged. The design is aimed at enabling the internal cap to block large water droplets even though the droplets pass the ventilator of the external cap.

    B. Development and application of solar radiation control algorithm
    - The temperature difference in all sections was within 0.3℃ (high precision), according to the chamber test results of the organization institution and national certification institution.
    - Temperature accuracy is high up to -50℃. However, measurement is made impossible at extremely low temperature; therefore it is required to carry out a test at extremely low temperature.
    - The accuracy in WMO test is judged to be not caused by temperature difference, but external factor (solar radiation).

    C. Improvement m observation equipment for better observation accuracy
    (1) Development of a new radiosonde
    (2) Development of a new ground receiver of radiosonde
    (3) Development of an adapter to connect weather balloon and helium injection device

    D. Development of environmetal-friendly radiosonde
    (1) Lightweight radiosonde
    The newly developed RGS-20A weighs 13 g, around 48% lighter than RGS-40A (25g), and its whole width reduced around 50%. That is the weight of PCB only of radiosonde excluding battery and antenna. The weight of the all radiosonde components including battery reduced more than 70%.

    (2) Minimized battery of radiosonde
    Compared to RGS-40A with three lithium-ion batteries, RGS-20A works with one lithium-ion battery. As a result, the newly developed radiosonde weighs 34 g, 64 % lighter than existing one weighing 93 g, The lightweight eco-friendly radiosonde can minimize environmental pollution.

    (다) Environmental and Environmental friendly material cerification

    E. Proved radiosonde performance by field test

    - Field-tested to examine the performance of the developed eco-friendly high-precision radiosonde
    - For comparison, Vaisala radiosonde was used as basis observation equipment.

    (1) Solar radiation correction
    - observed higher than the temperature, because of the influence of solar heat on flying radiosonde

    According to temperature performance testing, in the daytime, the temperature difference by radiation was up to ±3℃. As the result of solar radiation correction, there was the error of 土0.3℃. Therefore, the higher layer, the more improved the difference.

    (2) Humidity correction
    - With existing radiosonde, humidity was observed to get drier than the basis.

    According to humidity comparison, the observed humidity of the RSG-20A tended to get drier than the basis. After the application of the correction equation of temperature function, there was the error of ±5 % or so from the basis in all sections. Therefore, the newly developed radiosonde showed higher accurate observed value than existing one.

    (3) Atmospheric pressure correction
    - Atmospheric pressure was calculated on the basis of GPS in consideration of the altitude, temperature, and humidity on flying.

    2. Low Power Radiosonde and Multichannel Receiver
    A. Power Control Algorithm Verification
    - The link budget of radiosonde is analyzed by considering 200 mW for the transmission power and 50 km for transmission range.
    - Assuming that an antenna gain of 7 dBi and a maximum range of 50 km, the minimum required receiver sensitivities are - 109 dBm and 105 dBm with the transmission power of 16 dBm and 16 dBm, respectively.
    - We also observed the surface temperature of a radiosonde battery and received signal strength during flight to analyze the operational environment of a radiosonde (Feb. and Mar. 014, Gangneung-Wonju National University).

    B. Radiosonde Ground Receiver System RF Test and Modifications
    - One-way power control mechanism is developed for battery capacity reduction to improve environmental contamination and to mitigate near-far problem caused by multiple radiosondes.
    - The power control mechanism is to control the transmission power of radiosonde by the distance measured with GPS.
    - Four route models are considered to examine the performance of the power control mechanism, which was verified through computer simulations.
    - Radiosonde typically launches twice a day, UTC 0 and 12, but it is not sufficient to observe hazardous weather and to improve weather forecasting.
    - For hazardous weather observation and improvement of weather forecasting, continuous observations are required (ex, measurement interval < 30 minutes).
    - A multichannel receiver is necessary for not only continuous observations but also diagnosis of others during a radionsonde flight.
    - A multichannel receiver is designed by using SDR(Software Defined Radio) technology, in which the number of channels can be changed with software modification.

    - A broad range AGC is designed to provide a wide dynamic range (greater than 85 dB) suitable for radiosonde.
    - The wide dynamic range consists of a front LNA of 20 dB, a VGA of 40 dB and an ADC of 14 bit resolution.
    - SDR application is designed by Lab VIEW software, which consists of a block diagram for system identification and a front panel for user interface.

    C. Radiosonde System Integration and Multichannel Receiver Test and Modifications

    - Field tests are performed at Paju weather station and National typhoon center, KMA, for system integration and verification.
    - Field test results at Paju weather station showed that received signal strength (at 7 m apart) and background noise were 52 dBm and approximately - 120 dBm, respectively.
    - Test results at National typhoon center showed that RSSI was 67 dB, in the Smartsonde before launching and 50 dBm just after launching and decreased depending on the range.
    - Field test results can be utilized for adjusting LNA gain and AGC control parameters.
    - More fieid tests are necessary to analyze the effect of improvement of weather forecasting in terms of observation interval.

    3. Automatic Flying Device
    A. Development of lift-typed automatic flying device
    - Designed and developed the lift-typed automatic flying device that can open and close slidingly the upper roof to fly a radiosonde and a balloon, and can go up and down the flying lift

    - A radiosonde and a balloon to fly were installed into a flying tray module, which was transferred to a flying hatch module. And then, the constant injection of helium gas was applied to the balloon to fly for flying test.
    - Field test was conducted to examine and improve the performance of the developed automatic flying device (Jeju National Typhoon Center, Aug. 2015 to Feb. 2016)

    B. Development of hatch-typed automatic flying device
    - After an improvement in the lift-typed automatic flying device, the flying tray sized larger than previous one, though similar. The external appearance was made of urethane panel, not with previous container size.
    - Each tray size got larger than in previous one. One layer has 15 flying trays. As a result, the tray module was designed to have a total of 30 trays on the all (upper and lower) parts.

    - For tray driving, servo motor and decelerator are used, instead of pneumatic cylinder. Through tray rotation, flying and hatch module supply are made possible.

    (b) Development of automatic flying control system device
    - The contrl system constitutes automatic flying hatch control system for EhterCAT based industrial communication and BeckOFF PLC controller
    - Lifted typed automatic flying device was configured the manually operated contrl console and controlled by the control program to confugure the HMI system without all the manual control button for manual control
    - Action code of control operation is defined by considering the order of flying for automatic flying and the device is considered conjunction with the API system and the control program and the control system (Smart sonde management / Operating system integration)

    4. Automation system remote monitoring and upper-air data Integrated Management S/W development
    A. Multi-channel upper-air meteorological data processing / analysis / visualization software development
    (1) Software development for real-time map-based radiosonde position visualization
    - We developed the real-time map-based radiosonde positioning method for providing flight path and data from in-flight radiosonde

    (2) Time series-based upper-air data representation
    - Long-term upper-air data representation method is developed using openTSDB database system for efficient and fast data representation

    (3) Web-based data representation technology for providing real-time information of radiosonde flight
    -For real-time radiosonde flight information monitoring and providing upper-air information, our system has developed using next generation web standard HTML5-based expression technology

    (4) Multi-channel upper-air data processing / analysis / representation
    - Web-based upper-air data providing services (text-based and graph-based data service) and upper-air meteorological data analysis were developed including Skew-T diagrams

    B. Management, operating and remote motoring software of Automatic Upper Air Sounding System
    (1) Communication protocol for remote upper air sounding system monitoring
    - RESTful based communication protocol between server and remote station was developed. The protocol is for remote monitoring of flight progress, station environment and sonde flight status.

    (2) Web service development for upper air sounding system monitoring and it's verification
    - Web service which receives and represents system information current status of remote smartsonde, flight room, hatch, preparation room, gas room, environmental data from the outside AWS- was developed and verified.
    - Web service SW was verified in 10 virtual emulators environment. Each emulator injects stored upper-air sonde data and station data into server simultaneously. And also verified by interfacing the real Smart sonde system.

    (3) Smart device application SW for Smartsonde system’s environment and process monitoring
    (a) Smart device application SW development by using open API
    Real-time information representation of remote station status and flight process

    C. WMO upper-air data management software development
    (1) Analysis/storage software development for upper-air WMO data
    (a) Algorithm design and development for upper-air WMO data
    Develop time-series data stored metric, tag system for to provide storage and visual representation of the time series database
    Data service development to visually represent the trend of the graph for the wind direction, speed, temperature, etc. for a long time

    (b) Software architecture design and development of upper-air meteorological data for the WMO data
    Collect upper-air meteorological data provided by WMO and development of crawler, data repository and Web services
    - data URL: http://www1.ncdc.noaa.gov/pub/data/igra/data-y2d/
    - Offers such as logging, crawler settings for new station add, crawling and data repository results

    (2) Service framework design and development for upper-air data management
    (a) Design and development of RESTful API for web-based service offers upper-air meteorological data
    RESTful-based open APIs are designed and developed for real-time monitoring and upper-air development Meteorological Data Service

    (b) Web-based upper-air data service design and development
    - Map-based flight information monitoring and data service for multiple in-flight radiosondes
    - Real-time status and flight process monitoring service for remote unmanned stations
    - The crawler automatically acquired the upper-air WMO meteorological data time-series and provides data services
    - Smart sonde time-series data service
    - Adminstration web services to manager platform

    (c) Smart device-based remote stations and radiosonde monitoring application SW
    Developing smart device-based software applications and real-time remote monitoring of radiosonde stations in the same manner of Web-based services to be

    5. Operation and Testing of Smartsonde Integrated System
    A. Field observation of smartsonde and data analysis
    (1) Field observation
    - To improve the problems found in the operation of radiosonde automatic flying device, a test product was installed in a field for operation. A radiosonde is influenced by winds, given its observation characteristics. Therefore, the test product was installed in National Typhoon Center, Jujudo where typhoons and wind gusts are observed frequently.
    ㆍCompletely installed smartsonde test product in a field (Aug. 22, 2015)
    ㆍField-test operation of smartsonde test product (Aug. 24 to Sep. 4, 2015)
    ㆍField performance test of smartsonde test product (Sep. 7. 2015 to Feb. 26, 2016)

    (2) Data analysis
    - Field test was conducted a total of 36 times. As a result, success was made 31 times, ana thus there was 86% of flying success rate. For five failures, there were complete improvements.
    ㆍFailure reasons : GPS failure of radiosonde (faulty radiosonde)
    ㆍReceiver setting error (setting changed completely)
    ㆍRadiosonde contact part problem (contact part improved completely)
    ㆍRadiosonde installation failure
    ㆍObservation data reception failure (faulty radiosonde)


    1. 목적 : WMO에서 인정하는 세계수준의 고정밀 친환경 라디오존데 및 고층기상관측 자동화 시스템 개발

    2. 연구성과
    2.1 고정밀 라디오존데 개발
    라디오존데 관측 성능을 WMO 스코어 5.0이상으로 향상하...

    1. 목적 : WMO에서 인정하는 세계수준의 고정밀 친환경 라디오존데 및 고층기상관측 자동화 시스템 개발

    2. 연구성과
    2.1 고정밀 라디오존데 개발
    라디오존데 관측 성능을 WMO 스코어 5.0이상으로 향상하였으며, 경량화를 통한 친환경 라디오존데 개발 및 신형 수신기 및 관련 제품의 신제품 개발
    2.2 다채널 수신기 개발
    기존 단채널의 수신기를 다채널 (3채널) 수신기로 개발함에 따라 태풍을 비롯한 악기상시 집중관측을 가능케하여 예보의 정확도 향상을 가능하게 함
    2.3 자동비양장치 개발
    수동으로 관측하던 고층기ㆍ상관측을 자동비양 장치를 개발함에 따라 관측자에 따른 관측자료의 편차를 줄이고, 극한 기상의 지역에서도 지속적인 관측을 가능 하게 되어 전세계적인 관측을 가능하게 함
    2.4 통합표출프로그램 개발
    고층기상관측 자동화 시스템의 통합 표출 프로그램의 개발로 인해 관측을 실시간으로 관리 및 자료의 표출을 가능하게 하며, 전세계 관측자료의 수집 및 분석을 통해 전지구적인 관측자료의 사용을 보다 쉽게 연구에 활용할 수 있게 함.


  • 목차(Contents) 

    1. 표지 ... 1
    2. 제출문 ... 2
    3. 보고서 요약서 ... 3
    4. 연구개발사업 주요 연구성과 ... 4
    5. 국문 요약문 ... 5
    6. SUMMARY ... 22
    7. 목차 ... 40
    8. 제1장. 연구개발과제의 개요 ... 41
    9. 1. 연구개발 목적 ... 41...
    1. 표지 ... 1
    2. 제출문 ... 2
    3. 보고서 요약서 ... 3
    4. 연구개발사업 주요 연구성과 ... 4
    5. 국문 요약문 ... 5
    6. SUMMARY ... 22
    7. 목차 ... 40
    8. 제1장. 연구개발과제의 개요 ... 41
    9. 1. 연구개발 목적 ... 41
    10. 2. 연구개발의 필요성 ... 41
    11. 3. 연구개발 범위 ... 41
    12. 제2장. 국내외 기술 개발 현황 ... 44
    13. 1. 국내 기술 동향 및 수준(신청 기관 포함) ... 44
    14. 2. 국외 기술 동향 및 수준 ... 44
    15. 3. 국내·외 경쟁기관 현황 ... 45
    16. 제3장. 연구 수행 내용 및 성과 ... 46
    17. 1. 친환경 고정밀 라디오존데 ... 46
    18. 2. 저전력 송신장치 및 다채널 수신장치 ... 63
    19. 3. 비양 자동화 장치 ... 87
    20. 4. 자동화 시스템 원격감시 S/W 및 고층기상자료 통합관리 ... 108
    21. 5. 스마트존데 통합시스템 운영 및 검증 ... 124
    22. 제4장. 목표 달성도 및 관련 분야 기여도 ... 127
    23. 1. 목표 달성도 ... 127
    24. 2. 관련 분야 기여도 ... 137
    25. 제5장. 연구개발성과의 활용계획 ... 139
    26. 1. 사업화를 통한 경제적 활용계획 ... 139
    27. 2. WMO 고층기상자료 관리 및 데이터 활용 ... 140
    28. 제6장. 연구 과정에서 수집한 해외 과학기술 정보 ... 141
    29. 1. [Meteorological Technology World Exdo 2015] ... 141
    30. 제7장. 연구개발성과의 보안등급 ... 143
    31. 제8장. 국가과학기술종합정보시스템에 등록한 연구시설 •장비 현황 ... 144
    32. 제9장. 연구개발과제 수행에 따른 연구실 등의 안전 조치 이행 실적 ... 145
    33. 1. 가스 안전관리지침 마련 ... 145
    34. 2. 연구실 안전점검 정기적 실시 ... 145
    35. 3. 참여 연구원의 안전관련 교육훈련 시행 ... 145
    36. 4. 연구 내용 및 결과물 안전 확보 ... 145
    37. 5. 연구실 안전 확보 계획 ... 145
    38. 제10장. 연구개발과제의 대표적 연구 실적 ... 146
    39. 제11장. 기타 사항 ... 148
    40. 1. 시제품 ... 148
    41. 2. 기술문서 ... 150
    42. 제12장. 참고 문헌 ... 152
    43. 끝페이지 ... 157
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