Automated monitoring of road surfaces taking into account the correction of tropospheric delays of satellite navigation signals

The article considers the development of an automated road surface monitoring subsystem taking into account the correction of tropospheric delays of satellite navigation signals. Global and regional tropospheric models recommended by ICAO SARPS and their application to improve the accuracy of navigation measurements are presented. The block diagram of the hardware of the subsystem, including the MSP432P401R microcontroller, acceleration sensors and a GPS module, is described, and the process of developing a prototype is detailed. The results of the work demonstrate the possibility of integrating complex tropospheric delay models into the monitoring subsystem to improve the accuracy of data and the efficiency of road surface assessment. The proposed approach to tropospheric delay correction allows to increase the stability and reliability of coordinate determinations in a changing environment. The developed hardware platform ensures reliable data collection and processing in real time, which makes it suitable for use in road monitoring systems in various climatic conditions, as well as for integration into a smart city system. Particular attention is paid to the adaptation of tropospheric delay models to specific regional conditions, which allows for increasing the reliability and accuracy of the data obtained.