• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.9
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• pp.1220-1227
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• 2018

Avionics electronic equipment refers to the electronic equipment installed on an aircraft. Failure of avionics equipment can have a significant impact on aircraft operations as well as threaten the safety of pilots and passengers. Therefore, avionics electronic equipment is required to have higher reliability and safety than electronic equipment used for other purposes. Avionics equipment must consider various component selection and system design to meet reliability and safety-related requirements from the initial design stage. In this paper, we describe safety, reliability performance analysis method of avionics equipment, and introduce various design improvement methods that can be performed to meet safety requirement performance. Finally, the safety performance of the improved avionics equipment was reanalyzed and compared with the value before the improvement, the validity of the proposed design change was verified.

• Journal of Advanced Navigation Technology
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• v.1 no.1
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• pp.59-69
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• 1997

In this paper, we construct a navigation geography database using R-tree, and develop a software for avionics systems such as VOR, ILS, DME, and NDB. First, we design the navigation geography database using R-tree, and construct a database for navigation aids facilities of every airport. In order to implement avionics software, we develop some calculating algorithms for distance, bearing, and deviation angle between an aircraft and a VOR station for VOR, and deviation angle from a LLZ, glide slope from a GP, and range of markers for ILS. The navigation geography database system is composed of map data manager which can construct and update the database, real-time searcher which provides information about the avionics system, geography database, and user interface.

• Journal of Advanced Navigation Technology
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• v.10 no.2
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• pp.173-180
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• 2006

An airborne radar is an essential aviation electronic system of the aircraft to perform various missions in all weather environments. This paper presents the design, development, and test results of the multi-mode pulsed Doppler radar system test model for helicopter-borne flight test. This radar system consists of 4 LRU units, which include ANTU(Antenna Unit), TRU(Tx Rx Unit), RSDU(Radar Signal & Data Processing Unit) and DISU(Display Unit). The developed technologies include the TACCAR processor, planar array antenna, TWTA transmitter, coherent I/Q detector, digital pulse compression, DSP based Doppler FFT filtering, adaptive CFAR, IMU, and tracking capability. The design performance of the developed radar system is verified through various helicopter-borne field tests including MTD (Moving Target Detector) capability for the Doppler compensation due to the moving platform motion.

• Journal of the Korea Institute of Military Science and Technology
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• v.25 no.6
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• pp.628-636
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• 2022

This paper describes the design of the avionics architecture for military unmanned aerial vehicles considering the airworthiness requirements for the first time. This design considers the redundancy in the system data bus and the power system and the data link system to meet the system safety requirements of the airworthiness requirements of military UAVs. This avionics architecture design has been verified through the system integration test and the flight test after manufacturing the UAV.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.28 no.1
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• pp.115-121
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• 2020

Recently avionics equipment and its integration are most important part for implementing high performance aircraft system. This trends are emphasized in the military or special purpose aircraft development program. Flight Test Bed Aircraft (hereafter FTB A/C) - by modified commercial aircraft - was key solution to verify function and performance of avionics system for complex aircraft development program for a while, but there are no experience to use it in domestic airspace of ROK. This paper would like to address what act and regulation is necessary to perform flight operation of FTB A/C with keeping a airworthiness and airspace control policy. and then willing to propose what do we do for improving aviation industry.

• International Journal of Aeronautical and Space Sciences
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• v.6 no.2
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• pp.97-109
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• 2005

In this paper, the critical requirement for obstacle awareness and avoidance is assessed with the compliance of the equivalent level of safety regulation, and then the collision avoidance sensor system is presented with the key design parameters for the requirement of the smart unmanned aerial vehicle in low-altitude flight. Based on the assessment of various sensors, small-sized radar sensor is selected for the suitable candidate due to the real-time range and range-rate acquisition capability of the stationary and moving aircraft even under all-weather environments. Through the performance analysis for the system requirement, the conceptual design result of radar sensor model is proposed with the range detection probability and collision avoidance mode is established based on the time-to-collision, which is analyzed by collision scenario.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.289-290
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• 2018

본 과제는 각종 센서를 활용하여 빠르고 정확하게 화재를 감지하고 스프링클러를 활용한 초기진압과 동시에 어플리케이션을 통한 자동신고 기능을 포함하고 있다. 열/연기 감지센서를 통해 빠르게 화재 발생을 감지하고 화재감지기에 부착되는 Zigbee통신으로 스프링클러 시스템과 통신하여 초기진압을 하며, 고유 번호로 정확한 화재진원지를 파악하여 소방원들의 화재진압에 도움이 된다. 또한 연동되어있는 어플리케이션의 자동 신고기능을 통해 소방서에 정보를 제공하여 빠른 출동이 가능하게 되고 스피커를 통해 화재발생시 화재경보로 알려주어 신속한 대피를 할 수 있다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.01a
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• pp.307-308
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• 2022

현대사회는 대부분의 생활을 전자기기를 통해 생활하며 전자기기가 없어서는 안 되는 사회가 되었다. 전자기기의 사용을 제어할 수 있으면 어떨까 라는 생각과 함께 전기 사고로 인한 화재와 전기 사용으로 인한 불안감이 증가하고 있는 점에 주목하였다. 요즘 사회는 전자기기의 사용이 증감함에 따라 대기 전력에 대한 이슈 또한 증가하면서 대기 전력에 관한 관심이 증가하고 있으며 이를 줄이기 위한 정부와 지자체에서 다각도의 노력이 진행 중이다. 매년 1천 건 이상의 전기로 인한 사고가 발생하며 사망자는 50명을 넘어가고 있다. 이러한 위험성을 줄이고 전기로 인한 사고를 예방하기 위해 아두이노와 앱을 무선통신하여 가전제품의 전력사용량을 확인할 수 있으며, 애플리케이션을 통한 제어가 가능하고 전력사용량에 따른 전기세의 계산 또한 가능한 '원격제어가 가능한 스마트 멀티플러그 시스템'을 계발하게 되었다.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.40 no.5
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• pp.446-453
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• 2012

As part of the integration phases in developing a UAV, a System Integration Laboratory (SIL) has been developed to provide integrated test capability for the verification of avionics system requirements. The SIL has realized primary functions that are common in manned aircraft SIL's, and specialized laying stress on test data visualization and test automation under the closed-loop structure of the ground control simulation, aircraft simulation and flight simulation components. Those design results have led to easy and sure verification of lots of complex requirements of the UAV avionics system. The functions and performances of the SIL have been proved in four gradational test steps and checked to operate successfully in aircraft System Integration Test Environment for the integration of UAV ground station and aircraft.

• Journal of Advanced Navigation Technology
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• v.25 no.5
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• pp.377-383
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• 2021

In this paper, we describe the case of automatic test equipment development for hardware verification of stores management computer mounted on aircraft. Recently, the required functions of aircraft have been diversified and the related technologies of avionics equipment have developed, and the types and quantity of interfaces required for avionics equipment have increased. In addition to the existing old stores, the stores management computer also needs to control the interface in large quantities as the requirements for the new stores are added. For this reason, the time and manpower required for the inspection of avionic equipment are also increasing, and if the test process of avionic equipment can be automated and unmanned, more efficient inspection system operation will be possible. Therefore, this paper introduces the case of designing test software and test scenario to automate the structural design contents and verification process of test equipment required for the verification of hardware function of stores management computer.