Flight Monitoring System Research Articles

PENGEMBANGAN FLIGHT MONITORING SYSTEM MODE-S BERBASIS OFFLINE MEWUJUDKAN KEMANDIRIAN TEKNOLOGI PENERBANGAN

Technological independence is important for every country in global competition. One of the technological advancements developed by the Indonesian government through BPPT is Automatic Dependent Surveillance Broadcast (ADS-B) type in, which functions as a flight monitoring system. The Indonesian Air Force (TNI AU) through Depohar 50 (Depot Maintenance 50) has also developed ADS-B type in, which is currently deployed in six radar units known as the Flight Monitoring System (FMS) Mode-S. Accordance with government regulations (Minister of Transportation Regulation No. 81 of 2017), the government has mandated the use of ADS-B for flight safety. ADS-B has two types, in and out. In the TNI AU, ADS-B out is installed on aircraft such as Grob, KT-1, and Cessna, while ADS-B in is installed on Weibel radar. However, since ADS-B is not yet installed on TNI AU aircraft, flight data from the Air Traffic Control (ATC) was communicated to the pilots, hence, they can be aware of the air traffic situation. Furthermore, due to the increasing air traffic, communication with ATC has become limited. A qualitative method was used in the development of the ADS-B type in TNI AU aircraft, and the previous ADS-B type in development could only be installed on the ground station. The information received from ADS-B on the aircraft was real-time air traffic, which helps pilots make decisions to enhance flight safety, such as reducing the risk of aircraft collisions. The use of this technology on TNI AU aircraft is important for improving flight safety and technological independence.

Unmanned aerial vehicle dynamic simulation in SimInTech

The paper considers the simulation results of the flight monitoring system of an unmanned aerial vehicle (UAV) of the octocopter type in SimInTech dynamic simulation environment, where the developed mathematical model was exported. The paper also proposes a monitoring system based on a proportional-integral-derivative (PID) controller. The simulation of the octocopter monitoring system was completed by the export of the monitoring system developed in Simulink environment. The described approach to simulation allows evaluating the copter monitoring system and reproducing the flight dynamics of a real physical object. Here, the modeling of precession effects is omitted, it is assumed that the torque reaction of each engine-propeller combination (EPC) equals zero, namely: each EPC has two motors and rotors rotating at the same speed in opposite directions. The issue of simulating equipment failures is also omitted and it is assumed that the object is only in the air (in normal flight mode). The given model does not imply landing and take-off modes, emergency situations, load grip system and unloading, as well as does not consider the issues of detailed modeling of sensors, filtering of signals and noises, bending of the frame of the copter and/or rotors, operation at out-of-limit loads, writing drivers to particular equipment. The technical result of the algorithm is the design and parametric implementation of the model of the object dynamics in the general form and in the volume sufficient for the design of the flight controller and the ground control panel of the copter.

Effects of Moth Age and Rearing Temperature on the Flight Performance of the Loreyi Leafworm, Mythimna loreyi (Lepidoptera: Noctuidae), in Tethered and Free Flight.

To understand the migratory flight behaviors of the loreyi leafworm, Mythimna loreyi Walker (Lepidoptera: Noctuidae), both tethered (flight distance, time, and velocity) and free-flight activity (flight action, duration, and frequency) of adults at different ages, sexes, and temperatures were investigated using computer-controlled insect flight mills and an autonomous flight monitoring system. Tethered flight activity differed significantly among ages and rearing temperature, but not sex. Newly emerged adults (the first day after emergence) displayed the lowest flight time, distance, and speed. However, flight performance increased with age, peaking at 3 d. Relatively strong flight performance was maintained up to 5 d postemergence and then declined significantly by day 6. There was no significant difference in flight performance between sexes for 3-d-old moths. Adults reared as larvae at 24°C averaged significantly longer flight duration and distance than those reared at other temperatures. Both lower and higher rearing temperatures negatively affected tethered flight. Similar results among age and rearing temperature treatments were observed in autonomous free-flight tests. During 12-h free-flight tests, flight activity peaked from 6 to 10 h after beginning of darkness. Free-flight activity of 1- and 6-d-old adults was significantly less than that of 3-, 4-, and 5-d-old adults. Adults reared at 24°C showed significantly greater free-flight action, duration, and frequency than those reared at other temperatures. The results suggest that M. loreyi may be a migratory species.