• Title, Summary, Keyword: Telemetry

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DESIGN AND IMPLEMENTATION OF TELEMETRY SYSTEM INTERFACE FOR KSLV-I

  • Kim Joonyun;Kim Bo-Gwan
    • Bulletin of the Korean Space Science Society
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    • pp.274-277
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    • 2004
  • KSLV (Korea Space Launch Vehicle)-I telemetry system will be composed of two telemetry streams: a lower stage telemetry stream and an upper stage telemetry stream. In this paper, the authors present design, implementation and test results of the upper stage telemetry interface for KSLV-I. The telemetry system currently is in the stage of the prototype model development, and its engineering model and flight model will be developed in the near future.

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THE IMPLEMENTATION METHOD AND TEST OF TELEMETRY TREND ANALYSIS IN KOMPSAT-2

  • Kim Myungja;Jung Won-Chan;Kim Jae-Hoon
    • Bulletin of the Korean Space Science Society
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    • pp.235-238
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    • 2004
  • In this paper, we will present the implementation method of telemetry trend analysis in KOMPSAT-2 (KOrea Multi Purpose SATellite II), and then we will show the test result of trend analysis with telemetry data. Trend Analysis function is one of the module of Satellite Operations Subsystem and that analyzes the telemetry data of satellite state of health and telemetry trend for operation support. With this system many clients can analyze telemetry data simultaneously.

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Development and Test of Line-Telemetry DPS for KSLV-I Upper Stage (나로호 상단부 Line-Telemetry 데이터처리시스템 개발 및 시험)

  • Kim, Kwang-Soo;Lee, Soo-Jin;Chung, Eui-Seung
    • Aerospace Engineering and Technology
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    • v.10 no.1
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    • pp.107-115
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    • 2011
  • The line-telemetry data processing system is necessary for monitoring the status of each onboard systems of KSLV-I upper stage during the ground tests and launch preparation. The mission of line-telemetry system is to provide reference telemetry data and to monitor the status of upper stage. The line-telemetry data processing system consists of a PCM acquisition/processing server, a system management server, and 9 monitoring consoles. In this paper, we will describe the overview of onboard remote measurement system, the design of the line-telemetry data processing system, anomaly setup information for indicating alarm signal in case of abnormal occurrence, and the result of the ground test and flight test.

Implementation of the Distributed Telemetry System Based on Retransmission (재전송 기반의 분산 원격측정 시스템 구현)

  • Im, Sooyeol;Hwang, Chiho;Lee, Hwansuk;Ahn, Seongbok
    • Journal of the Korea Institute of Military Science and Technology
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    • v.17 no.6
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    • pp.821-827
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    • 2014
  • This paper considers a distributed telemetry system using retransmission algorithm with one master telemetry and two slave telemetries. The master telemetry merges data from each slave telemetry and own measured data. If there exist some errors in data from the slave telemetry, the master telemetry requests retransmission to corresponding slave telemetry. In this paper, we propose a retransmission algorithm applied to implementing the distributed telemetry system. Simulation results demonstrate that the retransmission improves the performance of the communication between the master and slave telemetries.

3D DISPLAY OF SPACECRAFT DYNAMICS USING REAL TELEMETRY

  • Lee, Sang-Uk;Cho, Sung-Ki;Kim, Jae-Hoon
    • Journal of Astronomy and Space Sciences
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    • v.19 no.4
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    • pp.403-408
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    • 2002
  • 3D display of spacecraft motion by using telemetry data received from satellite in real-time is described. Telemetry data are converted to the appropriate form for 3-D display by the real-time preprocessor. Stored playback telemetry data also can be processed for the display. 3D display of spacecraft motion by using real telemetry data provides intuitive comprehension of spacecraft dynamics.

The Data Processing System Development of Telemetry Ground System for Korean Space Launch Vehicle-1 (KSLV-1의 신호 수신.처리를 위한 원격측정 지상국시스템의 자료처리시스템 개발)

  • Ma, Jin-A;Kwon, Soon-Ho;Oh, Chang-Yul;Lee, Hyo-Keun
    • Aerospace Engineering and Technology
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    • v.6 no.1
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    • pp.245-254
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    • 2007
  • The on-board telemetry system of KSLV-1 transmits telemetry signal for the launch vehicle and satellite to ground telemetry system in real time. In ground telemetry system, antenna system acquires telemetry signals and transfers these to data processing system. Data processing system processes and recordes telemetry data and distributes it to each mission operator in order to monitor it the operation goes well or not. This document describes the configurations and functions of data processing system designed for efficient and appropriate processing of telemetry data.

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Characteristics of Patients Undergoing Telemetry in the Cardiology Ward (심장내과 병동의 텔레메트리 적용 환자 특성)

  • Kim, Yoon-Seon;Choi, Hye Ran
    • Journal of Korean Critical Care Nursing
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    • v.7 no.2
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    • pp.14-23
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    • 2014
  • Purpose: The purpose of this study was to provide basic information to develop appropriate nursing guidelines for cardiac telemetry. Methods: This retrospective research was conducted to identify the current usage of cardiac telemetry and considered 1,000 patients hospitalized for telemetry. The collected data were analyzed using IBM (SPSS Statistics for Windows 21.0). Results: Four-hundred and ninety-two patients (49.2%) were diagnosed with arrhythmia and 209 (20.9%) with heart failure. Electrocardiogram (ECG) rhythm changes were detected via telemetry in 464 cases. Major arrhythmias were ventricular tachycardia (183, 39.4%) and bradycardia (99, 21.3%). Interventions after detecting arrhythmia were cardioversion (16, 3.4%), defibrillation (1, 0.2%), and cardiopulmonary cerebral resuscitation (5, 1.1%); other patients were treated conservatively with close observation (381, 82.1%). Conclusion: There was appropriate intervention in 46.4% of the considered cases with the detection of ECG changes before patient notification, which implied that cardiac telemetry could be considered for application to patients with hemodynamic instability. Clear standards and guidelines are required to determine who requires telemetry and when to end the telemetry monitoring.

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Software design for flexible telemetry packing of LEO satellite (저궤도 관측위성의 Flexible Telemetry Packing을 위한 소프트웨어 설계)

  • Shin, Hyun-Kyu;Lee, Jong-In;Lee, Sang-Kon
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.631-634
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    • 2009
  • 저궤도 관측위성의 개발 및 운영과정에서 위성의 내부 상태를 보다 면밀히 파악하고 분석하기 위하여 일반적인 telemetry 전송 주기인 초단위보다 짧은 주기로 데이터를 취합하여 지상으로 전송하기 위한 방법이 요구된다. 이를 위해 minor cycle 마다 sampling을 수행하는 telemetry packing 방법을 제안하고 구현한 바 있다. 여기서는 이전에 제안된 telemetry packing 방법을 확장하여 보다 다양한 요구사항을 충족시키기 위한 위성 소프트웨어의 설계에 대해 간략히 소개한다.

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Capacitive Parameter Estimation of Passive Telemetry RF Sensor System Using RLS Algorithm (RLS 알고리즘을 이용한 원격 RF 센서 시스템의 정전용량 파라메타 추정)

  • Kim, Kyung-Yup;Lee, John-Tark
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.5
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    • pp.858-865
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    • 2008
  • In this paper, Capacitive Telemetry RF Sensor System using Recursive Least Square (RLS) algorithm was proposed. General Telemetry RF Sensor System means that it should be "wireless", "implantable" and "batterless". Conventional Telemetry RF Sensor System adopts Integrated Circuit type, but there are many defects like complexity of structure and the limitation of large power consumption in some cases. In order to overcome these disadvantages, Telemetry RF Sensor System based on inductive coupling principle was proposed in this paper. Proposed Telemetry RF Sensor System is very simple because it consists of R, L and C and measures the changes of environment like pressure and humidity in the type of capacitive value. This system adopted RLS algorithm for estimation of this capacitive parameter. For the purpose of applying RLS algorithm, proposed system was mathematically modelled with phasor method and was quasi-linearized. As two parameters such as phase and amplitude of output voltage for estimation were needed, Phase Difference Detector and Amplitude Detector were proposed respectively which were implemented using TMS320C2812 made by Texas Instrument. Finally, It is verified that the capacitance of proposed telemetry RF Sensor System using RLS algorithm can be estimated efficiently under noisy environment.

Study of the Telemetry Ground Station for FA-50 Flight Test Instrumentation System (신규 형상에 따른 FA-50 지상계측 방안 연구)

  • Lee, Ju-Ha;Kim, Bo-Sung;Yoo, Byeong-Seon
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.16 no.4
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    • pp.20-25
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    • 2008
  • The purpose of this study is leading to reduce the setup time and cost of the ground telemetry system for FA-50 program. And using the accumulated experience during T-50 and TA-50 development period, remove the risk of development and construct the optimal ground telemetry system for FA-50. For this study, collect the ground telemetry data of the T-50/TA-50, analyze the data and problems and then suggest the optimal telemetry ground system for FA-50.

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