• Title, Summary, Keyword: flight software

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A Study on Attitude Estimation of UAV Using Image Processing (영상 처리를 이용한 UAV의 자세 추정에 관한 연구)

  • Paul, Quiroz;Hyeon, Ju-Ha;Moon, Yong-Ho;Ha, Seok-Wun
    • Journal of Convergence for Information Technology
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    • v.7 no.5
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    • pp.137-148
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    • 2017
  • Recently, researchers are actively addressed to utilize Unmanned Aerial Vehicles(UAV) for military and industry applications. One of these applications is to trace the preceding flight when it is necessary to track the route of the suspicious reconnaissance aircraft in secret, and it is necessary to estimate the attitude of the target flight such as Roll, Yaw, and Pitch angles in each instant. In this paper, we propose a method for estimating in real time the attitude of a target aircraft using the video information that is provide by an external camera of a following aircraft. Various image processing methods such as color space division, template matching, and statistical methods such as linear regression were applied to detect and estimate key points and Euler angles. As a result of comparing the X-plane flight data with the estimated flight data through the simulation experiment, it is shown that the proposed method can be an effective method to estimate the flight attitude information of the previous flight.

Fusion Tracking Filter for Satellite Launch Vehicles (위성발사체 궤도추정을 위한 융합필터 연구)

  • Ryu, Seong Sook;Kim, Jeongrae;Song, Yong Kyu;Ko, Jeonghwan
    • Journal of Aerospace System Engineering
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    • v.1 no.3
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    • pp.37-42
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    • 2007
  • The flight safety system for the satellite launch vehicles is required in order to minimize the risk due to launch vehicle failure. For prompt and reliable decision of flight termination, the flight safety system usually uses multiple sensors to estimate launch vehicle's flight trajectory. In that case, multiple types of observed tracking data makes it difficult to identify the flight termination condition. Therefore, a fusion tracking filter handling the multiple tracking data is necessary for the flight safety system. This research developed a simulation software for generating multiple types of launch vehicle tracking data, and then processed the data with fusion filters.

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Implementation of the Flight Information Visualization System using Google Earth (Google Earth를 이용한 비행정보 시각화 시스템의 구현)

  • Park, Myeong-Chul;Hur, Hwa-Ra
    • Journal of the Korea Society of Computer and Information
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    • v.15 no.10
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    • pp.79-86
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    • 2010
  • This paper presents implementation of a system for effective visualizing flight information of aircraft using Google Earth. This system in order to use a detailed satellite image which provide from Google Earth used COM API. This system appeared the various flight information of the aircraft in the instrument panel using OpenGL and the aircraft flight condition is visible in the Google Earth Map. This research result used to flight evaluation and improvement. In future will be able to apply to flight software development.

Development of Operational Flight Program for Avionic System Computer (항공전자시스템컴퓨터 탑재소프트웨어 개발)

  • Kim, Young-Il;Kim, Sang-Hwan;Lim, Heung-Sik;Lee, Sung-Soo
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.33 no.9
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    • pp.104-112
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    • 2005
  • This paper presents the technique to develop an operational flight program(OFP) of avionic system computer(ASC) which integrates the avionics control, navigation and fire control and provides informations for flight, navigation and weapon aiming missions. For the development of the OFP of ASC, two i960KB chips are used as central processing units board and standard computer interface library(SCIL) which is built in house is used. The Irvine compiler corporation(ICC) integrated development environment(IDE) and the programming language Ada95 are used for the OFP development. We designed the OFP to a computer software configuration item(CSCI) which consists of to three parts for independency of software modules. The OFP has been verified through a series of flight tests. The relevant tests also have been rigorously conducted on the OFP such as software integrated test, and ground functional test.

Wireless Connectivity flight Performance Evaluation of Unmanned Helicopters

  • Shin Low-Kok;Park Soo-Hong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.139-142
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    • 2006
  • Numerous simulation studies and researches have recently revealed the rapid development and evolution in the emerging area of intelligent unmanned aerial vehicle (UAV). This study aims to develop a flight performance evaluation about the wireless unmanned helicopter. The process includes the design and testing of flight hardware and software that interprets sensor data. For the unmanned helicopter used in this research, an inertial sensor that provides posture (roll, pitch and yaw angles) and a Bluetooth is used to provide wireless connection between the user's pc and the helicopter were installed in the helicopter the helicopter's pitch, roll and yaw were the communication data. The accuracy of the system was confirmed by a computer simulation. The software also has been developed to support operators and displays helicopter position and posture by graphics.

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MI2U CONTROL FLIGHT SOFTWARE DESIGN AND DEVELOPMENT IN COMS

  • Kang, Seo-Yeon;Park, Su-Hyun;Koo, Cheol-Hae;Yang, Koon-Ho;Choi, Seong-Bong
    • Proceedings of the KSRS Conference
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    • v.1
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    • pp.271-273
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    • 2006
  • In this paper, we describe the MI2U ORB function which is a part of the flight software executed on SCU and controls MI2U/MI which is one of three payloads on COMS. The MI2U ORB function manages MI2U/MI redundancy and reconfiguration, monitors MI2U/MI equipment, performs FDIR, and provides the routing service of commands from Ground/IP (Interpreted Program) through the current used 1553 channel. The MI2U hardware achieves the interface between the SCU and the MI. The MI2U is connected to SCU through MIL-STD-1553B system bus. The MI2U has the internal redundancy but is used in cold redundancy. The MI2U ORB function considers that they are not expected to be simultaneously switched on. The connection combination between MI2U and MI is electrically cross-strapped. However the MI2U ORB function considers only two combinations (MI2U A + MI 1, MI2U B + MI 2). Other combinations can be manually achieved by ground in case of the emergency case.

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Safeguard Memory Operation for LEO Stellite (저궤도위성 세이프가드 메모리 운영)

  • Chae, Dong-Seok;Yang, Seung-Eun;Cheon, Yee-Jin
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.8-10
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    • 2012
  • 위성을 전체적으로 제어하는 탑재소프트웨어가 동작하는 주 메모리와는 별도로 세이프가드 메모리가 있다. 세이프가드 메모리는 주로 위성의 장애관리를 위해 사용되는 것으로 프로세서 리셋 시에 전체적으로 초기화가 수행되는 주 메모리와는 달리 별도의 전원을 사용하여 항상 Power-ON 상태를 유지하고 주/부 2개의 메모리가 주/부 프로세서와 Cross-Strap으로 연결되어 어느 프로세서에서든 접속이 가능하도록 구성되어 있다. 위성에 심각한 장애가 발생하여 정상적인 운영이 불가능한 경우, 위성은 Fail-over 과정을 거치게 되는데, Fail-over 과정에서 2개의 세이프가드 메모리의 비상운영데이터 영역에 장애 발생원인 및 프로세서 리셋 이후에 필요한 정보들을 기록하고, 미리 정해진 Backup 하드웨어를 이용하여 시스템 초기화가 수행된다. Backup 하드웨어를 통하여 프로세서가 정상적으로 Boot-up되면 세이프가드 메모리에 저장된 비상운영데이터를 이용하여 위성의 장애발생 원인을 파악하고, 정상운영모드로 복귀하는 절차를 거치게 된다. 본 논문은 저궤도 위성에서 사용되는 세이프가드 메모리 운영방식에 대해 기술한 것이다.

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Requirement management program for the Development of the Avionics Operational Flight Program (항공전자장비 비행운용프로그램 개발을 위한 요구도 관리 시스템)

  • Park, Kyoung-Choon;Seo, Jung-Bae;Bae, Jong-Min;Kang, Hyun-Syug
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.15 no.9
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    • pp.2050-2058
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    • 2011
  • The objective of this thesis is to research the software requirement management system for the development of operational flight program (OFP) which is embedded in aircraft avionics. It offers the function to record the requirement revision log. In fact, the COTS (commercial off-the-shelf) program which has similar function already exists in the market. But this kind of software programs are too complicated and relatively expensive in acquisition. Furthermore, they require too expensive maintenance cost, medium sized business company, this thesis intended to provide the software requirement management system that can be simply installed and easily used.

Implementation of Educational UAV with Automatic Navigation Flight

  • Park, Myeong-Chul;Hur, Hwa-ra
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.8
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    • pp.29-35
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    • 2019
  • This paper proposes a UAV equipped with an automatic control system for educational purposes such as navigation flight or autonomous flight. The proposed UAV is capable of automatic navigation flight and it is possible to control more precisely and delicately than existing UAV which is directly controlled. And it has the advantage that it is possible to fly in a place out of sight. In addition, the user may arbitrarily change the route or route information to use it as an educational purpose for achieving the special purpose. It also allows you to check flight status by shooting a video during flight. For this purpose, it is designed to check the image in real time using 5.8GHz video transmitter and receiver. The flight information is recorded separately and used as data to judge the normal flight after the flight. The result of the paper can be flighted along the coordinates specified using GPS information. Since it can receive real-time video, it is expected to be used for various education purposes such as reconnaissance of polluted area, achievement of special purpose, and so on.

A Study on Flight Data Analysis & Animation System Development

  • Kim, Jae-Hyung;Shin, Sung-Sik
    • 제어로봇시스템학회:학술대회논문집
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    • pp.56.6-56
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    • 2001
  • The FDAS(Flight Data Analysis & Animation System) is a comprehensive analysis system designed for the improvement of flight safety. FDAS provides decoding, analysis and animation tools that can be used for investigation of data origination primarily from Flight Data Recoders(FDRs), Quick Access Recoders(QARs), Using FOQA(Flight Operation Quality Assurance) Data Analysis, an analyst can perform a variety of functions including data smoothing, interpolation, differentiation, integration, calculator function, flight path generation, performance routines, as well as user-programmed functions. Utilizing data captured and processed by our FDAS software module, FDAS provides high-fidelity 3-D aircraft views and instruments views. Multiple windows enable you to view the situation from a variety of perspectives, including out-of-window, chase plane ...

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