Autonomous Wireless Sensor System for Emergency Monitoring Roads with Low Communication Coverage

Mauricio Postigo-Malaga, Alexander M. Jimenez-Caceres, Jose Pelegri-Sebastia, Jose Chilo

Research output: Contribution to journalArticlepeer-review


Rural areas often face communication challenges due to limited mobile coverage on remote roads, posing significant difficulties in reporting emergencies and accidents. This study presented an autonomous vehicle tracking system using low-cost radar sensors to detect possible emergencies in the sections of roads with low cell coverage. The radar sensor system could determine the number of vehicles that passed through the nodes and classify them based on the vehicle type. Each node within the system is equipped with ten radars, a processor unit, and a radio transmitter to communicate with the network in real-time, achieving a rapid response time of just 0.2 s. To ensure seamless connectivity, two distinct wireless communication networks are employed, one for the connection between the towers in the same node and the other for the connection between nodes and a center with cellular coverage. The results of this study can be useful in conveying emergency messages, as well as traffic management.

Original languageEnglish
Article number4829
JournalElectronics (Switzerland)
Issue number23
StatePublished - Dec 2023

Bibliographical note

Publisher Copyright:
© 2023 by the authors.


  • 802.11 protocol
  • DigiMesh protocol
  • microcontrollers
  • radars
  • road-accidents emergency monitoring
  • wireless sensor system


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