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Vehicle Counting and Moving Direction Identification Based on Small-Aperture Microphone Array

The varying trend of a moving vehicle’s angles provides much important intelligence for an unattended ground sensor (UGS) monitoring system. The present study investigates the capabilities of a small-aperture microphone array (SAMA) based system to identify the number and moving direction of vehicle...

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Detalles Bibliográficos
Autores principales: Zu, Xingshui, Zhang, Shaojie, Guo, Feng, Zhao, Qin, Zhang, Xin, You, Xing, Liu, Huawei, Li, Baoqing, Yuan, Xiaobing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5470479/
https://www.ncbi.nlm.nih.gov/pubmed/28489051
http://dx.doi.org/10.3390/s17051089
Descripción
Sumario:The varying trend of a moving vehicle’s angles provides much important intelligence for an unattended ground sensor (UGS) monitoring system. The present study investigates the capabilities of a small-aperture microphone array (SAMA) based system to identify the number and moving direction of vehicles travelling on a previously established route. In this paper, a SAMA-based acoustic monitoring system, including the system hardware architecture and algorithm mechanism, is designed as a single node sensor for the application of UGS. The algorithm is built on the varying trend of a vehicle’s bearing angles around the closest point of approach (CPA). We demonstrate the effectiveness of our proposed method with our designed SAMA-based monitoring system in various experimental sites. The experimental results in harsh conditions validate the usefulness of our proposed UGS monitoring system.