標題: Ubiquitous and Low Power Vehicles Speed Monitoring for Intelligent Transport Systems
作者: Choy, Jose Luis Calderon
Wu, Jing
Long, Chengnian
Lin, Yi-Bing
資訊工程學系
Department of Computer Science
關鍵字: Radiofrequency identification;Monitoring;Antennas;Roads;Power demand;Databases;Intelligent transportation systems (ITS);traffic monitoring;radio frequency identification (RFID);sensors;vehicles;speed;modular artificial neural network (MNN);database
公開日期: 1-Jun-2020
摘要: This paper presents a high scalability real-time intelligent traffic monitoring system, based on Radio Frequency Identification (RFID). The main features of this system are low cost, low power consumption, traffic monitoring, and connectivity. The system's architecture includes an RFID reader, a passive tag, and a Raspberry Pi. Our solution collects vehicle information from the labels and stores the data into a database by employing only one antenna. The main challenge is that the RFID module is not robust enough to recognize the information in the vehicle's RFID tag on each information query, while the label is in the reading zone. This instability does not allow us to know precisely when and where a vehicle enters or leaves the sensing zone. What is more, the high random error in the power signal and the complexity of its characteristic curve pattern add difficulty to the speed calculation, when we reduce the number of antennas to one. For this reason, an innovative approach has been designed, using customized modular neural network (MNN). This method fits the collected data (power signal vs time) affected by acute random noise, to the characteristic correspondence function among the signal power and the position of the terminal, which domains are dimensionally different. As a result, we can estimate the vehicle speeds and obtain the whole vehicle information. Under this novel method, we are able to reduce the hardware, in comparison with previous approaches, making it cheaper and decreasing power consumption.
URI: http://dx.doi.org/10.1109/JSEN.2020.2974829
http://hdl.handle.net/11536/154534
ISSN: 1530-437X
DOI: 10.1109/JSEN.2020.2974829
期刊: IEEE SENSORS JOURNAL
Volume: 20
Issue: 11
起始頁: 5656
結束頁: 5665
Appears in Collections:Articles