Probability statistics based ultrasonic bird-repellent effect assessment method
A technology of probability statistics and evaluation method, which is applied in the field of ultrasonic bird repelling effect evaluation based on probability statistics, can solve the problem of few people studying the bird repelling effect evaluation, and achieve the effect of improving the bird repelling effect
Active Publication Date: 2018-08-07
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 invention relates to a probability statistics based ultrasonic bird-repellent effect assessment method. The method includes steps: S1, adopting an ultrasonic bird-repellent device for repelling birds on power transmission and distribution lines to obtain ultrasonic bird-repellent time data under different frequency band modes; S2, subjecting the obtained ultrasonic bird-repellent time data under the different frequency band modes to preliminary qualitative comparison, selecting a mode short in bird-repellent time, and taking the bird-repellent time of the selected mode as assessment data;S3, acquiring a probability density distribution histogram of the assessment data, performing fitting of different functions, and selecting out the function most proximate to the probability density distribution histogram of the assessment data; S4, taking the selected most proximate function as a probability function for assessment, and carrying out assessment of total bird-repellent effects according to the function. Compared with the prior art, the method has the advantage that the problem of failure in effective judgment of the bird-repellent effects of the ultrasonic bird-repellent deviceis solved.
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