MOSCOW, April 4An algorithm developed in St. Petersburg State Aviation Administration, which estimates the time of information propagation over the network and the delay of data transmission, is designed to increase the reliability of modern domestic aircraft. According to scientists, the development synchronizes “time” between elements of systems, which will help them function optimally. The results are presented in the scientific journal Sensors.
In order for aircraft and spacecraft to operate correctly and smoothly, data exchange between various devices on board must occur on time and without errors. At the same time, for proper functioning, new data exchange technologies are needed, which, using special methods and algorithms, will help avoid errors, said specialists from the St. Petersburg State University of Aerospace Instrumentation (St. Petersburg State University of Aerospace Instrumentation).
In order for devices in such an on-board network of an aircraft to communicate normally with each other, they must work as if at the same time, the scientists explained. There is a device on the network – a “time master”, which sends everyone data about the current operating time of the network. This data is sent simultaneously over all channels, broadcast, in order to quickly send time data to each device.
The system is further complicated by the presence of backup devices that come into operation when the main node fails – These are the requirements for overall system fault tolerance.
Scientists from St. Petersburg State Aviation Administration have developed a new method for estimating the number of failures that may occur in a network when sending broadcast data in the event of an excessive number of devices in it. This method will help all on-board devices perform their tasks more accurately, respond faster to emergency situations and reduce their number, the authors believe.
“We studied how the structure of a network with many devices affects the distribution time of broadcast data. The study was carried out with the mechanisms of promising networks using high-speed and highly reliable SpaceFibre data transmission technology,” said Valentin Olenev, co-author of the publication, director of the Center for Aerospace Research and Development of St. Petersburg State University of Aviation Administration. .
He noted that in promising on-board technologies, the concept of a “time master” is practically not described today, as are the mechanisms of its functioning in international standards.
“The methods being developed will increase the reliability of domestic aircraft and spacecraft of the new generation, where SpaceFibre technology will be implemented. Now our scientific group is improving this newest network standard for exchanging data from on-board equipment,” Olenev explained.
The development will help introduce the open international standard SpaceFibre into domestic projects in the field of aviation and space exploration.< br />
The study was carried out within the framework of program “Priority-2030” of the national project “Science and Universities”, of which St. Petersburg State Aviation Administration is a participant.
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