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Secure communication within the PX4 platform
Ligocki, Roman ; Martinásek, Zdeněk (oponent) ; Číka, Petr (vedoucí práce)
PX4 platform is one of the most common software packages used to control unmanned systems. It uses the MAVLink protocol for communication between the autopilot, ground control station or other devices in the MAVLink network. This protocol is specially designed to suit unmanned systems using radio with low passthrough. With the rising number of unmanned systems, the number of cyber attacks on these devices is also increasing. This diploma thesis presents an analysis of the MAVLink protocol and PX4 platform, and describes possible security vulnerabilities in telemetry connection. Based on these findings, a security implementation was created. This implementation contains encryption, access control, authentication and a key exchange system. Security implementation is based on the MonoCypher cryptography library. The whole implementation was programmed in C language. Author's goal was to share results with the community around PX4 platform. Therefore, pull requests have been created to the public repository during the final part of thesis.
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Detekce odložených zavazadel ve veřejných prostorech
Ligocki, Roman ; Mašek, Jan (oponent) ; Uher, Václav (vedoucí práce)
Cílem této práce je vytvořit program pro detekci odložených zavazadel na veřejnosti, které mohou být potenciální hrozbou pro jejich okolí. Součástí práce je popis detekční metody pro hledání objektů v digitálním obrazu. Text dále obsahuje popis použité neuronové sítě YOLO a metod pro porovnávání obrazů. V práci je rovněž popis navrženého algoritmu pro sledování objektů a detekci vlastnictví zavazadla. Výsledkem prace je program, který je schopen detekovat odložené zavazadlo na základě jeho pohybu a vlastnictví.
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Secure communication within the PX4 platform
Ligocki, Roman ; Martinásek, Zdeněk (oponent) ; Číka, Petr (vedoucí práce)
PX4 platform is one of the most common software packages used to control unmanned systems. It uses the MAVLink protocol for communication between the autopilot, ground control station or other devices in the MAVLink network. This protocol is specially designed to suit unmanned systems using radio with low passthrough. With the rising number of unmanned systems, the number of cyber attacks on these devices is also increasing. This diploma thesis presents an analysis of the MAVLink protocol and PX4 platform, and describes possible security vulnerabilities in telemetry connection. Based on these findings, a security implementation was created. This implementation contains encryption, access control, authentication and a key exchange system. Security implementation is based on the MonoCypher cryptography library. The whole implementation was programmed in C language. Author's goal was to share results with the community around PX4 platform. Therefore, pull requests have been created to the public repository during the final part of thesis.
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Detection Of Deferred Luggage In Public Areas
Ligocki, Roman
Goal of this paper is to describe created program for detection of deferred luggage in public areas, that could be possibly dangerous for their surrounding. Text describes usage of neural network YOLO for object detection from digital image. Paper also contains description of used object tracking algorithm and formula for image comparison. Algorithm for object tracking, has been implemented based on image comparison and distance between objects. Result of this project is application, that is able to detect deferred luggage.
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Detekce odložených zavazadel ve veřejných prostorech
Ligocki, Roman ; Mašek, Jan (oponent) ; Uher, Václav (vedoucí práce)
Cílem této práce je vytvořit program pro detekci odložených zavazadel na veřejnosti, které mohou být potenciální hrozbou pro jejich okolí. Součástí práce je popis detekční metody pro hledání objektů v digitálním obrazu. Text dále obsahuje popis použité neuronové sítě YOLO a metod pro porovnávání obrazů. V práci je rovněž popis navrženého algoritmu pro sledování objektů a detekci vlastnictví zavazadla. Výsledkem prace je program, který je schopen detekovat odložené zavazadlo na základě jeho pohybu a vlastnictví.
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