Patent ID: 6923064
Filing Date: 2005-08-02
Classification: A01M,G01N,G01V

Abstract:
1. Method for detecting, classifying and densimetrically quantifying granivorous insects, of one or several families of insects simultaneously present, in stocks of cereals said method detecting said insects through noises and sound and/or infrasonic vibrations which the insects emit, said method comprising: recording actual noises in said stocks, eliminating known random noise, detecting on an envelope energy curve obtained from possible windows corresponding to energy peaks and determining average frequency, spectral width and total energy, comparing average frequency and width of each of said windows with those of known and indexed windows of similar characteristics, in order to carry out a taxinomic classification, and comparing the average frequency and the total energy of each of said windows with those of known and indexed windows of similar characteristics, in order to carry out a densimetric quantification.