S.I. Smetanin - Post-graduate Student, Chair of Electronics, Vladivostok State University of Economy and Service. E-mail: Sardo1@mail.ru V.A. Ignatyuk - Dr.Sc. (Phys.-Math.), Professor, Chair of Electronics, Vladivostok State University of Economy and Service. E-mail: viktor.ignatyuk@vvsu.ru A.L. Ganyushkin - Post-graduate Student, Chair of Electronics, Vladivostok State University of Economy and Service

This article describes a way of organizing an expanded satellite monitoring system with its own set of base stations and servers receiving and shipping information, collectively called a servers of accuracy control (SAC), as well as remote moni-toring devices - mobile terminals. This concept is realized through the use of special algorithms that allow users tracking vehicles and other objects with a high level of accuracy. Creating such a system is an attempt to improve the standard concept of GPS monitoring, which is unable to pursue any action with the calculated coordinates of the GPS-receivers. Such a system will be much more accurate than a standard satellite monitoring system. As part of this work following results were achieved: 1) created a mobile terminal based on a microcomputer Raspberry PI; 2) developed the software for the mobile terminal of the extended system monitoring and servers of accuracy control im-plementing the basic principles of the monitoring system; 3) we conducted studies to determine the accuracy of SAC. The SAC uses the principle of DGPS. To implement DGPS used GPS receiver, the output data of which contain raw navigational information required to operate the two receivers in DGPS mode. The article lists the main components developed by the mobile terminal, including a GPS-receiver Quectel SIRF IV L20. The article presents an algorithm the software and the results of testing the accuracy of determining the coordinates of the mobile terminal and a simple GPS-receiver. The resulting data show an increase in accuracy when using SAC, on average, 1.85 times. This results also strongly influenced by inaccurate starting coordinates.

 

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