RT info:eu-repo/semantics/article
T1 Acoustic detection and localisation system for Hylotrupes bajulus L. larvae using a MEMS microphone array
A1 Martínez López, Roberto Diego
A1 Izquierdo Fuente, Alberto
A1 Villacorta Calvo, Juan José
A1 Val Puente, Lara del
A1 Basterra Otero, Luis Alfonso
K1 Signal processing
K1 Señal, Teoría de la (Telecomunicaciones)
K1 Wood-boring larvae identification
K1 MEMS microphone array
K1 Timber trade safeguard
K1 Identificación de larvas perforadoras de la madera.
K1 Matriz de micrófonos MEMS
K1 Métodos de tratamiento específicos
K1 3325 Tecnología de las Telecomunicaciones
AB A novel system for acoustic detection of the presence of xylophagous insect larvae inside structural timber beams is presented. It is based on an extensive array of MEMS microphones that allows the acoustic detection and localisation of the larvae when they are active. In a first phase, the activity of the larvae is continuously detected by means of frequency filtering and a sliding energy estimator, and after that, a set of short-duration segmented signals is generated, which obtains the spatial localisation of the larvae, by means of a shaping algorithm based on delay-sum beamforming techniques.The tests carried out demonstrate that it is possible to detect and locate multiple larvae of Hylotrupes bajulus L. inside structural-sized pieces of wood of Pinus syilvestris L., as well as their internal trajectory.In the future, the system could address the identification of the specific type of xylophage responsible for the deterioration by using machine learning or equivalent techniques, based on the temporal and frequency information of the detected sound events.The aim of this work is to control unintentional infestions in the international timber trade, in the assembly and the use of infested timber and, in all cases, to be able to carry out selective, targeted and localised treatments and to verify their success.
PB Elsevier
SN 0003-682X
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/61464
UL https://uvadoc.uva.es/handle/10324/61464
LA eng
NO Applied Acoustics, 2023, vol. 213, 109618
NO Producción Científica
DS UVaDOC
RD 24-nov-2024