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Aspects of autonomous drive control using NVIDIA Jetson Nano microcomputer

100%

Podbucki K. , Marciniak T.

tom Vol. 30

117--120

The article describes the training process and experiments regarding autonomous movement by the autonomous car Waveshare JetRacer AI. The central unit responsible for controlling the vehicle's systems, i.e. the steering servo and the DC motors used for the drive, is the NVIDIA Jetson Nano embedded device. The application of the IMX219 camera module for data acquisition and training of a neural network models on microcomputer and their use for the implementation of autonomous driving are described.

Chromaticity measurement of airport navigation lighting using integrated colour sensor

80%

Suder J. , Podbucki K. , Marciniak T.

tom Vol. 31, No. 4

art. no. e147040

The paper presents an analysis of using a TCS3430 light colour sensor to verify the chromaticity of navigation lighting installed at airports. These measurements can help determine the correct operation of the tested lamp using of specialised measuring devices. The emitted light colour is critical for pilots during flight operations such as take-off, landing and taxiing, especially in low visibility conditions. Chromaticity standards (in CIE1931 colour space) are specified in the relevant regulations of the European Union Aviation Safety Agency (EASA) and the International Civil Aviation Organisation (ICAO), and require regular inspection of each light point (both in-pavement and elevated lamps). Tests were carried out for various types of aviation navigation lighting lamps. The stability of measurements and possibilities of visualization on the chromaticity chart were assessed. The article also presents software that allows for quick verification of the operation of a given lamp, intended for airport maintenance services.

Microprocessor-based photometric light intensity sensor for airport lamps quality testing

70%

Podbucki K. , Suder J. , Marciniak T. , Mańczak W. , Dąbrowski A.

tom Vol. 30, No. 4

art. no. e143396

The paper presents a design and performance analysis of a photosensor device enabling the measurement of the visible light illuminance. The sensor is designed for use in the light metering matrix of a mobile measurement platform allowing the correct operation of inpavement airport lamps. This kind of control can be required by regulations and must meet the standards defined by the European Union Aviation Safety Agency (EASA). An important assumption of the solution was to obtain the highest possible speed of a measurement acquisition so that the control process would take place in a relatively short time. The proposed module concept is dedicated to the task of testing the quality of airport lamps, due to the characteristics of the photosensitive elements matching the light beams emitted by luminaries. The device is based on a VTP1220FBH photodiode and an ATmega328P microcontroller, which, in addition to the analogue-to-digital conversion and correction, sends the results back to the master unit via the I²C bus.