São José dos Campos, Brazil
São José dos Campos, Brazil

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De Vasconcelos L.E.G.,Institute Pesquisas e Ensaios em Voo IPEV | Leite N.P.O.,Institute Pesquisas e Ensaios em Voo IPEV | Pinheiro C.A.M.,Federal University of Itajubá | Carpinteiro O.A.S.,Federal University of Itajubá
Proceedings - 24th SIBGRAPI Conference on Graphics, Patterns and Images | Year: 2011

The first Flight Test Campaign (FTC) carried out for an experimental aircraft is the calibration of its Air Data System (ADS). In this case, the altitude and airspeed measurements of the aircraft are provided by both anemometric along with the Flight Tests Instrumentation (FTI) systems that are corrupted by installation errors. Therefore, a tool was developed using techniques such as image processing in order to minimize these errors. A tool is described for detecting the position of the aircraft during a FTC through a video of the high-speed camera. The tool detects the aircraft and reference points, calculates altitude and airspeed of the aircraft and determines validity of test point in FTC. The preliminary tests of this tool showed satisfactory results compared to the current method. This paper will discuss such scenario, its preliminary development and the results through performed flights with EMBRAER Jet XAT-26 aircraft and HELIBRAS HB-350L-1 helicopter. © 2011 IEEE.


Carvalho M.A.,Institute Pesquisas e Ensaios em Voo IPEV | D'Amore R.,Brazilian Technological Institute of Aeronautics | Leite N.P.O.,Institute Pesquisas e Ensaios em Voo IPEV
Proceedings of the International Telemetering Conference | Year: 2015

The aeronautical industries have been suffering financial cutbacks and the market has to face new challenges associated with new companies. Telemetry community has been facing the increase of the electromagnetic spectrum usage for a variety of applications (e.g. 4G), after all telemetry is everywhere. In view of these issues and focused on the inherent requirements of the Flight Test application, the IPEV R&D group proposes the iPCM Telemetry architecture as solution for the existing reliability and bandwidth issues associated with the telemetry link. In this article, as a proof-of-concept of the iPCM architecture, it has been performed an experimental assembly. The results demonstrate the iPCM's ability to regenerate corrupted data providing the required data integrity and reliability, besides the capability to dynamically select the FTI transmitted parameter list to optimize the bandwidth link.


De Vasconcelos L.E.G.,Institute Pesquisas e Ensaios em Voo IPEV | De Vasconcelos L.E.G.,Brazilian Technological Institute of Aeronautics | Kusumoto A.Y.,Institute Pesquisas e Ensaios em Voo IPEV | Kusumoto A.Y.,Brazilian Technological Institute of Aeronautics | And 2 more authors.
Proceedings of the International Telemetering Conference | Year: 2015

Due to the quick change of business processes in organizations, software needs to adapt quickly to meet new requirements by implementing new business rules. In Research and Development (R&D) scenario, the research is highly non-linear and changes are inevitable. In this context, it is known that traditional methodologies (e.g. waterfall) may lead to the detection of failures late, increase the time and cost of development and maintenance of software. On the other hand, agile methodologies are based on Test-Driven Development (TDD), maintain the technical debt under control, maximize the Return on Investment and reduce the risks for customers and companies. In this paper, we show the use of Scrum and TDD in the development of an experimental tool that aims to make the calibration in real time of the rudder of a fighter aircraft. The preliminary results allowed to increase the coverage testing of the software and hence the quality of the tool.


Kusumoto A.Y.,Institute Pesquisas e Ensaios em Voo IPEV | Kusumoto A.Y.,Brazilian Technological Institute of Aeronautics | De Vasconcelos L.E.G.,Institute Pesquisas e Ensaios em Voo IPEV | De Vasconcelos L.E.G.,Brazilian Technological Institute of Aeronautics | And 3 more authors.
Proceedings of the International Telemetering Conference | Year: 2014

Flight tests and flight safety are tightly coupled. For a given experimental test flight, the main objective to be achieved is related to the test bed and crew integrity (i.e. Bring back the test bed in one piece). Furthermore, the aircraft operational safety (i.e. continued airworthiness) relies into the accuracy of gathered information, provided by the airborne Flight Test Instrumentation (FTI) system. Typically, the FTI system includes: a data acquisition system; a transmission system; a data recorder; multiple sensors and auxiliary equipment such as Global Navigation Satellite System (GNSS) Receiver. In a specific Flight Test Campaign (FTC), such as external stores separation FTC, the associated risk is high because the non-linear and unpredicted aerodynamics couplings between the released store and the aircraft structure (e.g. wings) could lead to a catastrophic collision condition. Typically, the setup for such FTC is a big technical challenge for the instrumentation group because the determination of six degrees of freedom (6Dof) trajectory of the release store becomes mandatory. Such information could be by the means of an optical tracking system that requires the integration of two or more hi-speed hi-resolution video cameras into FTI. Unfortunately, the FTI and the Real-Time Telemetry Link (RTL) limited bandwidth imposes several restrictions for the development and implementation of a real-time application to be used at the Ground Telemetry System (GTS) for the verification of the separation safety and the validation of the test point. This paper, presents the implementation of computer vision techniques and Camshift algorithm as an approach to tracking individual track targets on the store surface which can be perform onboard and in real time or near real time. The development of the algorithm is presented as well several experimental test results that use videos frames gathered from previous FTC executed by Instituto de Pesquisas e Ensaios em Voo (Flight Test and Research Institute- IPEV). Preliminary results present satisfactory performance.

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