Secure data transmission method for the movement of autonomous vehicles
Keywords:
discrete situational network, decentralized network, cyberattack, functional security, route optimization, Dijkstra algorithmAbstract
Introduction: Current vehicle monitoring and management systems, as well as methods for route optimization do not permit modeling cyberattacks on the transportation infrastructure nor assessing the disruption of traffic flow. Purpose: To develop a method for transmitting information messages using a discrete situational network device to improve the safety of autonomous vehicles. Results: We develop models of route construction and autonomous vehicle movement. Compared with traditional algorithms for finding the shortest paths, the route optimization for autonomous vehicles is carried out dynamically by evaluating the characteristics of the segment of the path encountered on the route and the time it takes to reach the destination. This is ensured by the proposed method of transmitting information messages in a discrete situational network, where the correction of route information is carried out on the basis of active and passive solvers accompanied by the formation of information messages about the disruptions of the current traffic situation as well as control messages for changing the route of movement. To improve the security of the transmission of information messages, we develop algorithms that ensure the confidentiality and reliability of the transmitted messages. Practical relevance: The results of the study can be used in the design and construction of control systems for autonomous vehicles, as well as for modeling their movement under the conditions of cyberattacks. Owing to the possibility of software implementation of the algorithm to ensure the reliability of transmitted messages, a practical result of protection against denial-of-service attacks is achieved.