An evaluation method of ultrasonic bird repelling effect based on probability statistics
A technology of probability statistics and evaluation methods, which is applied in the field of ultrasonic bird repelling effect evaluation based on probability statistics, can solve the problem of few researches on bird repelling effect evaluation, and achieve the effect of improving bird repelling effect.
Active Publication Date: 2021-07-20
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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Problems solved by technology
In order to drive away birds and protect power transmission and distribution lines, researchers in related fields have developed ultrasonic bird repellents. Ultrasonic waves in different frequency bands have different effects on birds, achieving the effect of repelling birds; and After repelling birds, its effective evaluation method will bring further improvement to the bird repelling of subsequent power transmission and distribution lines; however, at present, the evaluation of bird repelling effect of ultrasonic bird repellent is rarely studied
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[0023] Such as figure 1 As shown, the present invention relates to a method for evaluating the effect of ultrasonic repelling birds based on probability statistics, comprising the following steps:
[0024] (1) Use the ultrasonic bird repellent to drive the birds on the transmission and distribution lines, obtain and record the ultrasonic bird repellent time data in different frequency band modes, and define the period of time from the ultrasonic wave to the birds flying away as the repellent bird time.
[0025] (2) Preliminary qualitative comparison of ultrasonic bird repelling time data in different frequency band modes, and select the mode with less bird repelling effect;
[0026] Use Matlab or Excel tools to make a line graph of the ultrasonic bird repelling time data in each frequency band mode, compare the valley values of the broken lines corresponding to each frequency band mode, and qualitatively select two or three modes with less bird repelling time as evaluation...
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The present invention relates to a method for evaluating the effect of ultrasonic bird repelling based on probability and statistics, comprising the steps of: S1: using an ultrasonic bird repellent to drive away birds on transmission and distribution lines, and obtaining ultrasonic bird repelling time data in different frequency band modes; S2: Preliminary qualitative comparison of the ultrasonic bird repelling time data acquired in different frequency band modes, select the mode with less bird repelling time, and use the bird repelling time under this mode as evaluation data; S3: The probability of obtaining evaluation data Density distribution histogram, and fit different functions, select the function closest to the probability density distribution histogram of the evaluation data; S4: Use the closest function at the selection as the probability function for evaluation, according to the Evaluate the overall bird repelling effect. Compared with the prior art, the present invention solves the problem that the bird repelling effect of the ultrasonic bird repelling device cannot be effectively judged.
Description
technical field [0001] The invention relates to a method for evaluating the effect of ultrasonic repelling birds, in particular to a method for evaluating the effect of ultrasonic repelling birds based on probability statistics. Background technique [0002] Due to the improvement of the natural environment, the number of birds has increased sharply, and the phenomenon of nesting and flying on poles and towers is not uncommon, which brings great harm to the safe operation of power transmission and distribution lines. In order to drive away birds and protect power transmission and distribution lines, researchers in related fields have developed ultrasonic bird repellents. Ultrasonic waves in different frequency bands have different effects on birds, achieving the effect of repelling birds; and After repelling birds, its effective evaluation method will bring further improvement to the bird repelling of subsequent power transmission and distribution lines; however, at present,...
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IPC IPC(8): G06F17/18
CPCG06F17/18
Inventor 王华昕陆裕华赵永熹陆斌倪静
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER