@article{ref1,
title="LoRa-based traffic flow detection for smart-road",
journal="Sensors (Basel)",
year="2021",
author="Antolín, Diego and Asiain, David",
volume="21",
number="2",
pages="e338-e338",
abstract="This paper presents a wireless traffic flow detection system, mainly focused on conditions in which the traffic flow is slow or stopped, which increases the risk of  highway accidents. To achieve this goal, a Low Power Wide Area Network (LPWAN) based  on LoRa called Short LoRa has been developed. This LoRa sub-network complies with  the European Telecommunications Standards Institute (ETSI) harmonized standard for  its compatibility in Europe countries. In addition, the development of the devices  has allowed them to also work on a LoRaWAN network. The introduced development has  been compared to a reference system mounted with laser barriers that provided a high  accurate comparison. Field tests of the system have been carried out and the data  obtained in the measurement has been analyzed with two different methods, and both  of them were valid for the application. The results can determine vehicle speed with  adequate precision at low speeds. The attenuating behavior of the communication  signal is also analyzed through the Radio Signal Strength Indicator (RSSI). The  relationship between vehicle speed, gate distances and RSSI attenuation has been  studied. The system is proven to have efficient results in detecting traffic flow  under the conditions for which it has been developed.<p /> <p>Language: en</p>",
language="en",
issn="1424-8220",
doi="10.3390/s21020338",
url="http://dx.doi.org/10.3390/s21020338"
}